diff options
554 files changed, 24430 insertions, 9492 deletions
diff --git a/Documentation/DocBook/s390-drivers.tmpl b/Documentation/DocBook/s390-drivers.tmpl index 254e769282a..3d2f31b99dd 100644 --- a/Documentation/DocBook/s390-drivers.tmpl +++ b/Documentation/DocBook/s390-drivers.tmpl @@ -116,6 +116,7 @@ !Iinclude/asm-s390/ccwdev.h !Edrivers/s390/cio/device.c !Edrivers/s390/cio/device_ops.c +!Edrivers/s390/cio/airq.c </sect1> <sect1 id="cmf"> <title>The channel-measurement facility</title> diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index fb94f5a71b6..ba0aacde94f 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -50,7 +50,7 @@ additional_cpus=n (*) Use this to limit hotpluggable cpus. This option sets cpu_possible_map = cpu_present_map + additional_cpus (*) Option valid only for following architectures -- x86_64, ia64, s390 +- x86_64, ia64 ia64 and x86_64 use the number of disabled local apics in ACPI tables MADT to determine the number of potentially hot-pluggable cpus. The implementation diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 9b8291f4c21..25370662cc5 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -191,15 +191,6 @@ Who: Kay Sievers <kay.sievers@suse.de> --------------------------- -What: i2c_adapter.list -When: July 2007 -Why: Superfluous, this list duplicates the one maintained by the driver - core. -Who: Jean Delvare <khali@linux-fr.org>, - David Brownell <dbrownell@users.sourceforge.net> - ---------------------------- - What: ACPI procfs interface When: July 2008 Why: ACPI sysfs conversion should be finished by January 2008. @@ -225,14 +216,6 @@ Who: Len Brown <len.brown@intel.com> --------------------------- -What: i2c-ixp2000, i2c-ixp4xx and scx200_i2c drivers -When: September 2007 -Why: Obsolete. The new i2c-gpio driver replaces all hardware-specific - I2C-over-GPIO drivers. -Who: Jean Delvare <khali@linux-fr.org> - ---------------------------- - What: 'time' kernel boot parameter When: January 2008 Why: replaced by 'printk.time=<value>' so that printk timestamps can be @@ -266,13 +249,6 @@ Who: Tejun Heo <htejun@gmail.com> --------------------------- -What: Legacy RTC drivers (under drivers/i2c/chips) -When: November 2007 -Why: Obsolete. We have a RTC subsystem with better drivers. -Who: Jean Delvare <khali@linux-fr.org> - ---------------------------- - What: iptables SAME target When: 1.1. 2008 Files: net/ipv4/netfilter/ipt_SAME.c, include/linux/netfilter_ipv4/ipt_SAME.h @@ -323,3 +299,10 @@ Why: This driver has been marked obsolete for many years. Who: Stephen Hemminger <shemminger@linux-foundation.org> --------------------------- + +What: i2c-i810, i2c-prosavage and i2c-savage4 +When: May 2008 +Why: These drivers are superseded by i810fb, intelfb and savagefb. +Who: Jean Delvare <khali@linux-fr.org> + +--------------------------- diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801 index fde4420e3f7..3bd95836015 100644 --- a/Documentation/i2c/busses/i2c-i801 +++ b/Documentation/i2c/busses/i2c-i801 @@ -17,9 +17,8 @@ Supported adapters: Datasheets: Publicly available at the Intel website Authors: - Frodo Looijaard <frodol@dds.nl>, - Philip Edelbrock <phil@netroedge.com>, Mark Studebaker <mdsxyz123@yahoo.com> + Jean Delvare <khali@linux-fr.org> Module Parameters @@ -62,7 +61,7 @@ Not supported. I2C Block Read Support ---------------------- -Not supported at the moment. +I2C block read is supported on the 82801EB (ICH5) and later chips. SMBus 2.0 Support diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro index 06b4be3ef6d..1405fb69984 100644 --- a/Documentation/i2c/busses/i2c-viapro +++ b/Documentation/i2c/busses/i2c-viapro @@ -10,7 +10,7 @@ Supported adapters: * VIA Technologies, Inc. VT8231, VT8233, VT8233A Datasheet: available on request from VIA - * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8251 + * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8237S, VT8251 Datasheet: available on request and under NDA from VIA * VIA Technologies, Inc. CX700 @@ -46,6 +46,7 @@ Your lspci -n listing must show one of these : device 1106:3177 (VT8235) device 1106:3227 (VT8237R) device 1106:3337 (VT8237A) + device 1106:3372 (VT8237S) device 1106:3287 (VT8251) device 1106:8324 (CX700) diff --git a/Documentation/i2c/chips/pcf8575 b/Documentation/i2c/chips/pcf8575 new file mode 100644 index 00000000000..25f5698a61c --- /dev/null +++ b/Documentation/i2c/chips/pcf8575 @@ -0,0 +1,72 @@ +About the PCF8575 chip and the pcf8575 kernel driver +==================================================== + +The PCF8575 chip is produced by the following manufacturers: + + * Philips NXP + http://www.nxp.com/#/pip/cb=[type=product,path=50807/41735/41850,final=PCF8575_3]|pip=[pip=PCF8575_3][0] + + * Texas Instruments + http://focus.ti.com/docs/prod/folders/print/pcf8575.html + + +Some vendors sell small PCB's with the PCF8575 mounted on it. You can connect +such a board to a Linux host via e.g. an USB to I2C interface. Examples of +PCB boards with a PCF8575: + + * SFE Breakout Board for PCF8575 I2C Expander by RobotShop + http://www.robotshop.ca/home/products/robot-parts/electronics/adapters-converters/sfe-pcf8575-i2c-expander-board.html + + * Breakout Board for PCF8575 I2C Expander by Spark Fun Electronics + http://www.sparkfun.com/commerce/product_info.php?products_id=8130 + + +Description +----------- +The PCF8575 chip is a 16-bit I/O expander for the I2C bus. Up to eight of +these chips can be connected to the same I2C bus. You can find this +chip on some custom designed hardware, but you won't find it on PC +motherboards. + +The PCF8575 chip consists of a 16-bit quasi-bidirectional port and an I2C-bus +interface. Each of the sixteen I/O's can be independently used as an input or +an output. To set up an I/O pin as an input, you have to write a 1 to the +corresponding output. + +For more information please see the datasheet. + + +Detection +--------- + +There is no method known to detect whether a chip on a given I2C address is +a PCF8575 or whether it is any other I2C device. So there are two alternatives +to let the driver find the installed PCF8575 devices: +- Load this driver after any other I2C driver for I2C devices with addresses + in the range 0x20 .. 0x27. +- Pass the I2C bus and address of the installed PCF8575 devices explicitly to + the driver at load time via the probe=... or force=... parameters. + +/sys interface +-------------- + +For each address on which a PCF8575 chip was found or forced the following +files will be created under /sys: +* /sys/bus/i2c/devices/<bus>-<address>/read +* /sys/bus/i2c/devices/<bus>-<address>/write +where bus is the I2C bus number (0, 1, ...) and address is the four-digit +hexadecimal representation of the 7-bit I2C address of the PCF8575 +(0020 .. 0027). + +The read file is read-only. Reading it will trigger an I2C read and will hence +report the current input state for the pins configured as inputs, and the +current output value for the pins configured as outputs. + +The write file is read-write. Writing a value to it will configure all pins +as output for which the corresponding bit is zero. Reading the write file will +return the value last written, or -EAGAIN if no value has yet been written to +the write file. + +On module initialization the configuration of the chip is not changed -- the +chip is left in the state it was already configured in through either power-up +or through previous I2C write actions. diff --git a/Documentation/i2c/i2c-stub b/Documentation/i2c/i2c-stub index 89e69ad3436..0d8be1c20c1 100644 --- a/Documentation/i2c/i2c-stub +++ b/Documentation/i2c/i2c-stub @@ -25,6 +25,9 @@ The typical use-case is like this: 3. load the target sensors chip driver module 4. observe its behavior in the kernel log +There's a script named i2c-stub-from-dump in the i2c-tools package which +can load register values automatically from a chip dump. + PARAMETERS: int chip_addr[10]: @@ -32,9 +35,6 @@ int chip_addr[10]: CAVEATS: -There are independent arrays for byte/data and word/data commands. Depending -on if/how a target driver mixes them, you'll need to be careful. - If your target driver polls some byte or word waiting for it to change, the stub could lock it up. Use i2cset to unlock it. diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index 2c170032bf3..bfb0a552081 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients @@ -267,9 +267,9 @@ insmod parameter of the form force_<kind>. Fortunately, as a module writer, you just have to define the `normal_i2c' parameter. The complete declaration could look like this: - /* Scan 0x37, and 0x48 to 0x4f */ - static unsigned short normal_i2c[] = { 0x37, 0x48, 0x49, 0x4a, 0x4b, 0x4c, - 0x4d, 0x4e, 0x4f, I2C_CLIENT_END }; + /* Scan 0x4c to 0x4f */ + static const unsigned short normal_i2c[] = { 0x4c, 0x4d, 0x4e, 0x4f, + I2C_CLIENT_END }; /* Magic definition of all other variables and things */ I2C_CLIENT_INSMOD; diff --git a/Documentation/ide.txt b/Documentation/ide.txt index 1d50f23a5ca..94e2e3b9e77 100644 --- a/Documentation/ide.txt +++ b/Documentation/ide.txt @@ -30,7 +30,7 @@ *** *** The CMD640 is also used on some Vesa Local Bus (VLB) cards, and is *NOT* *** automatically detected by Linux. For safe, reliable operation with such -*** interfaces, one *MUST* use the "ide0=cmd640_vlb" kernel option. +*** interfaces, one *MUST* use the "cmd640.probe_vlb" kernel option. *** *** Use of the "serialize" option is no longer necessary. @@ -244,10 +244,6 @@ Summary of ide driver parameters for kernel command line "hdx=nodma" : disallow DMA - "hdx=swapdata" : when the drive is a disk, byte swap all data - - "hdx=bswap" : same as above.......... - "hdx=scsi" : the return of the ide-scsi flag, this is useful for allowing ide-floppy, ide-tape, and ide-cdrom|writers to use ide-scsi emulation on a device specific option. @@ -292,9 +288,6 @@ The following are valid ONLY on ide0, which usually corresponds to the first ATA interface found on the particular host, and the defaults for the base,ctl ports must not be altered. - "ide0=cmd640_vlb" : *REQUIRED* for VLB cards with the CMD640 chip - (not for PCI -- automatically detected) - "ide=doubler" : probe/support IDE doublers on Amiga There may be more options than shown -- use the source, Luke! @@ -310,6 +303,10 @@ i.e. to enable probing for ALI M14xx chipsets (ali14xx host driver) use: * "probe" module parameter when ali14xx driver is compiled as module ("modprobe ali14xx probe") +Also for legacy CMD640 host driver (cmd640) you need to use "probe_vlb" +kernel paremeter to enable probing for VLB version of the chipset (PCI ones +are detected automatically). + ================================================================================ IDE ATAPI streaming tape driver diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 65de5ba7b74..880f882160e 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -370,7 +370,8 @@ and is between 256 and 4096 characters. It is defined in the file configured. Potentially dangerous and should only be used if you are entirely sure of the consequences. - chandev= [HW,NET] Generic channel device initialisation + ccw_timeout_log [S390] + See Documentation/s390/CommonIO for details. checkreqprot [SELINUX] Set initial checkreqprot flag value. Format: { "0" | "1" } @@ -382,6 +383,12 @@ and is between 256 and 4096 characters. It is defined in the file Value can be changed at runtime via /selinux/checkreqprot. + cio_ignore= [S390] + See Documentation/s390/CommonIO for details. + + cio_msg= [S390] + See Documentation/s390/CommonIO for details. + clock= [BUGS=X86-32, HW] gettimeofday clocksource override. [Deprecated] Forces specified clocksource (if available) to be used diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index cb12ae175aa..53a63890aea 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -141,6 +141,7 @@ architectures: - ppc64 - ia64 (Does not support probes on instruction slot1.) - sparc64 (Return probes not yet implemented.) +- arm 3. Configuring Kprobes diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO index 86320aa3fb0..8fbc0a85287 100644 --- a/Documentation/s390/CommonIO +++ b/Documentation/s390/CommonIO @@ -4,6 +4,11 @@ S/390 common I/O-Layer - command line parameters, procfs and debugfs entries Command line parameters ----------------------- +* ccw_timeout_log + + Enable logging of debug information in case of ccw device timeouts. + + * cio_msg = yes | no Determines whether information on found devices and sensed device diff --git a/MAINTAINERS b/MAINTAINERS index 59db481c77d..29371226f68 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -758,22 +758,20 @@ S: Supported BLACKFIN RTC DRIVER P: Mike Frysinger -M: michael.frysinger@analog.com M: vapier.adi@gmail.com L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org S: Supported BLACKFIN SERIAL DRIVER -P: Aubrey Li -M: aubrey.li@analog.com +P: Sonic Zhang +M: sonic.zhang@analog.com L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org S: Supported BLACKFIN WATCHDOG DRIVER P: Mike Frysinger -M: michael.frysinger@analog.com M: vapier.adi@gmail.com L: uclinux-dist-devel@blackfin.uclinux.org (subscribers-only) W: http://blackfin.uclinux.org diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a04f507e7f2..e53b0ed9d00 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -180,8 +180,8 @@ config ARCH_AT91 bool "Atmel AT91" select GENERIC_GPIO help - This enables support for systems based on the Atmel AT91RM9200 - and AT91SAM9xxx processors. + This enables support for systems based on the Atmel AT91RM9200, + AT91SAM9 and AT91CAP9 processors. config ARCH_CLPS7500 bool "Cirrus CL-PS7500FE" @@ -217,6 +217,7 @@ config ARCH_EP93XX bool "EP93xx-based" select ARM_AMBA select ARM_VIC + select GENERIC_GPIO help This enables support for the Cirrus EP93xx series of CPUs. @@ -366,6 +367,7 @@ config ARCH_SA1100 select ARCH_DISCONTIGMEM_ENABLE select ARCH_MTD_XIP select GENERIC_GPIO + select GENERIC_TIME help Support for StrongARM 11x0 based boards. @@ -409,6 +411,17 @@ config ARCH_OMAP help Support for TI's OMAP platform (OMAP1 and OMAP2). +config ARCH_MSM7X00A + bool "Qualcomm MSM7X00A" + select GENERIC_TIME + select GENERIC_CLOCKEVENTS + help + Support for Qualcomm MSM7X00A based systems. This runs on the ARM11 + apps processor of the MSM7X00A and depends on a shared memory + interface to the ARM9 modem processor which runs the baseband stack + and controls some vital subsystems (clock and power control, etc). + <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp> + endchoice source "arch/arm/mach-clps711x/Kconfig" @@ -477,6 +490,8 @@ source "arch/arm/mach-davinci/Kconfig" source "arch/arm/mach-ks8695/Kconfig" +source "arch/arm/mach-msm/Kconfig" + # Definitions to make life easier config ARCH_ACORN bool @@ -657,6 +672,7 @@ config HZ default 128 if ARCH_L7200 default 200 if ARCH_EBSA110 || ARCH_S3C2410 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER + default AT91_TIMER_HZ if ARCH_AT91 default 100 config AEABI @@ -951,7 +967,7 @@ config FPE_FASTFPE config VFP bool "VFP-format floating point maths" - depends on CPU_V6 || CPU_ARM926T + depends on CPU_V6 || CPU_ARM926T || CPU_V7 help Say Y to include VFP support code in the kernel. This is needed if your hardware includes a VFP unit. @@ -961,6 +977,18 @@ config VFP Say N if your target does not have VFP hardware. +config VFPv3 + bool + depends on VFP + default y if CPU_V7 + +config NEON + bool "Advanced SIMD (NEON) Extension support" + depends on VFPv3 && CPU_V7 + help + Say Y to include support code for NEON, the ARMv7 Advanced SIMD + Extension. + endmenu menu "Userspace binary formats" diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 18101f5f5f2..192ee01a9ba 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -43,6 +43,12 @@ config DEBUG_ERRORS you are concerned with the code size or don't want to see these messages. +config DEBUG_STACK_USAGE + bool "Enable stack utilization instrumentation" + depends on DEBUG_KERNEL + help + Enables the display of the minimum amount of free stack which each + task has ever had available in the sysrq-T output. # These options are only for real kernel hackers who want to get their hands dirty. config DEBUG_LL diff --git a/arch/arm/Kconfig.instrumentation b/arch/arm/Kconfig.instrumentation index 63b8c6d5606..453ad8e15d6 100644 --- a/arch/arm/Kconfig.instrumentation +++ b/arch/arm/Kconfig.instrumentation @@ -43,6 +43,16 @@ config OPROFILE_MPCORE config OPROFILE_ARM11_CORE bool +config KPROBES + bool "Kprobes" + depends on KALLSYMS && MODULES && !UML && !XIP_KERNEL + help + Kprobes allows you to trap at almost any kernel address and + execute a callback function. register_kprobe() establishes + a probepoint and specifies the callback. Kprobes is useful + for kernel debugging, non-intrusive instrumentation and testing. + If in doubt, say "N". + config MARKERS bool "Activate markers" help diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 35e56c99ad1..dd220d18984 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -139,6 +139,7 @@ endif machine-$(CONFIG_ARCH_KS8695) := ks8695 incdir-$(CONFIG_ARCH_MXC) := mxc machine-$(CONFIG_ARCH_MX3) := mx3 + machine-$(CONFIG_ARCH_MSM7X00A) := msm ifeq ($(CONFIG_ARCH_EBSA110),y) # This is what happens if you forget the IOCS16 line. diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 5fde99f9d9f..de9d9ee5095 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -44,10 +44,6 @@ ifeq ($(CONFIG_PXA_SHARPSL),y) OBJS += head-sharpsl.o endif -ifeq ($(CONFIG_ARCH_AT91RM9200),y) -OBJS += head-at91rm9200.o -endif - ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) ifeq ($(CONFIG_CPU_CP15),y) OBJS += big-endian.o diff --git a/arch/arm/boot/compressed/head-at91rm9200.S b/arch/arm/boot/compressed/head-at91rm9200.S deleted file mode 100644 index 11782ccd93a..00000000000 --- a/arch/arm/boot/compressed/head-at91rm9200.S +++ /dev/null @@ -1,81 +0,0 @@ -/* - * linux/arch/arm/boot/compressed/head-at91rm9200.S - * - * Copyright (C) 2003 SAN People - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - */ -#include <asm/mach-types.h> - - .section ".start", "ax" - - @ Atmel AT91RM9200-DK : 262 - mov r3, #(MACH_TYPE_AT91RM9200DK & 0xff) - orr r3, r3, #(MACH_TYPE_AT91RM9200DK & 0xff00) - cmp r7, r3 - beq 99f - - @ Cogent CSB337 : 399 - mov r3, #(MACH_TYPE_CSB337 & 0xff) - orr r3, r3, #(MACH_TYPE_CSB337 & 0xff00) - cmp r7, r3 - beq 99f - - @ Cogent CSB637 : 648 - mov r3, #(MACH_TYPE_CSB637 & 0xff) - orr r3, r3, #(MACH_TYPE_CSB637 & 0xff00) - cmp r7, r3 - beq 99f - - @ Atmel AT91RM9200-EK : 705 - mov r3, #(MACH_TYPE_AT91RM9200EK & 0xff) - orr r3, r3, #(MACH_TYPE_AT91RM9200EK & 0xff00) - cmp r7, r3 - beq 99f - - @ Conitec Carmeva : 769 - mov r3, #(MACH_TYPE_CARMEVA & 0xff) - orr r3, r3, #(MACH_TYPE_CARMEVA & 0xff00) - cmp r7, r3 - beq 99f - - @ KwikByte KB920x : 612 - mov r3, #(MACH_TYPE_KB9200 & 0xff) - orr r3, r3, #(MACH_TYPE_KB9200 & 0xff00) - cmp r7, r3 - beq 99f - - @ Embest ATEB9200 : 923 - mov r3, #(MACH_TYPE_ATEB9200 & 0xff) - orr r3, r3, #(MACH_TYPE_ATEB9200 & 0xff00) - cmp r7, r3 - beq 99f - - @ Sperry-Sun KAFA : 662 - mov r3, #(MACH_TYPE_KAFA & 0xff) - orr r3, r3, #(MACH_TYPE_KAFA & 0xff00) - cmp r7, r3 - beq 99f - - @ picotux 200 : 963 - mov r3, #(MACH_TYPE_PICOTUX2XX & 0xff) - orr r3, r3, #(MACH_TYPE_PICOTUX2XX & 0xff00) - cmp r7, r3 - beq 99f - - @ Ajeco 1ARM : 1075 - mov r3, #(MACH_TYPE_ONEARM & 0xff) - orr r3, r3, #(MACH_TYPE_ONEARM & 0xff00) - cmp r7, r3 - beq 99f - - @ Unknown board, use the AT91RM9200DK board - @ mov r7, #MACH_TYPE_AT91RM9200 - mov r7, #(MACH_TYPE_AT91RM9200DK & 0xff) - orr r7, r7, #(MACH_TYPE_AT91RM9200DK & 0xff00) - -99: diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c index bf1075e1f57..f53bca46e23 100644 --- a/arch/arm/common/rtctime.c +++ b/arch/arm/common/rtctime.c @@ -20,7 +20,6 @@ #include <linux/capability.h> #include <linux/device.h> #include <linux/mutex.h> -#include <linux/rtc.h> #include <asm/rtc.h> #include <asm/semaphore.h> diff --git a/arch/arm/configs/at91cap9adk_defconfig b/arch/arm/configs/at91cap9adk_defconfig new file mode 100644 index 00000000000..e32e7364812 --- /dev/null +++ b/arch/arm/configs/at91cap9adk_defconfig @@ -0,0 +1,1143 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.24-rc8 +# Wed Jan 23 22:55:57 2008 +# +CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_GENERIC_GPIO=y +# CONFIG_GENERIC_TIME is not set +# CONFIG_GENERIC_CLOCKEVENTS is not set +CONFIG_MMU=y +# CONFIG_NO_IOPORT is not set +CONFIG_GENERIC_HARDIRQS=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ZONE_DMA=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# General setup +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_USER_NS is not set +# CONFIG_PID_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_CGROUPS is not set +CONFIG_FAIR_GROUP_SCHED=y +CONFIG_FAIR_USER_SCHED=y +# CONFIG_FAIR_CGROUP_SCHED is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +# CONFIG_EMBEDDED is not set +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_ANON_INODES=y +CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_EVENTFD=y +CONFIG_SHMEM=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +CONFIG_SLABINFO=y +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set +# CONFIG_BLK_DEV_BSG is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System Type +# +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +CONFIG_ARCH_AT91=y +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_KS8695 is not set +# CONFIG_ARCH_NS9XXX is not set +# CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_PNX4008 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_DAVINCI is not set +# CONFIG_ARCH_OMAP is not set + +# +# Boot options +# + +# +# Power management +# + +# +# Atmel AT91 System-on-Chip +# +# CONFIG_ARCH_AT91RM9200 is not set +# CONFIG_ARCH_AT91SAM9260 is not set +# CONFIG_ARCH_AT91SAM9261 is not set +# CONFIG_ARCH_AT91SAM9263 is not set +# CONFIG_ARCH_AT91SAM9RL is not set +CONFIG_ARCH_AT91CAP9=y +# CONFIG_ARCH_AT91X40 is not set +CONFIG_AT91_PMC_UNIT=y + +# +# AT91CAP9 Board Type +# +CONFIG_MACH_AT91CAP9ADK=y + +# +# AT91 Board Options +# +CONFIG_MTD_AT91_DATAFLASH_CARD=y +# CONFIG_MTD_NAND_AT91_BUSWIDTH_16 is not set + +# +# AT91 Feature Selections +# +CONFIG_AT91_PROGRAMMABLE_CLOCKS=y +CONFIG_AT91_TIMER_HZ=100 + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_ARM926T=y +CONFIG_CPU_32v5=y +CONFIG_CPU_ABRT_EV5TJ=y +CONFIG_CPU_CACHE_VIVT=y +CONFIG_CPU_COPY_V4WB=y +CONFIG_CPU_TLB_V4WBI=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y + +# +# Processor Features +# +# CONFIG_ARM_THUMB is not set +# CONFIG_CPU_ICACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_WRITETHROUGH is not set +# CONFIG_CPU_CACHE_ROUND_ROBIN is not set +# CONFIG_OUTER_CACHE is not set + +# +# Bus support +# +# CONFIG_PCI_SYSCALL is not set +# CONFIG_ARCH_SUPPORTS_MSI is not set +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +# CONFIG_TICK_ONESHOT is not set +# CONFIG_PREEMPT is not set +# CONFIG_NO_IDLE_HZ is not set +CONFIG_HZ=100 +CONFIG_AEABI=y +CONFIG_OABI_COMPAT=y +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set +CONFIG_SPLIT_PTLOCK_CPUS=4096 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=1 +CONFIG_BOUNCE=y +CONFIG_VIRT_TO_BUS=y +CONFIG_LEDS=y +CONFIG_LEDS_TIMER=y +CONFIG_LEDS_CPU=y +CONFIG_ALIGNMENT_TRAP=y + +# +# Boot options +# +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/ram0 rw" +# CONFIG_XIP_KERNEL is not set +# CONFIG_KEXEC is not set + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +CONFIG_FPE_NWFPE=y +# CONFIG_FPE_NWFPE_XP is not set +# CONFIG_FPE_FASTFPE is not set +# CONFIG_VFP is not set + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_AOUT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +# CONFIG_PM is not set +CONFIG_SUSPEND_UP_POSSIBLE=y + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_LRO is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set +# CONFIG_IP_DCCP is not set +# CONFIG_IP_SCTP is not set +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set +# CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set +# CONFIG_CONNECTOR is not set +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y +# CONFIG_MTD_AFS_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set +# CONFIG_MTD_OOPS is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +CONFIG_MTD_JEDECPROBE=y +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0x0 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=0 +# CONFIG_MTD_ARM_INTEGRATOR is not set +# CONFIG_MTD_IMPA7 is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +CONFIG_MTD_DATAFLASH=y +# CONFIG_MTD_M25P80 is not set +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set +CONFIG_MTD_NAND=y +# CONFIG_MTD_NAND_VERIFY_WRITE is not set +# CONFIG_MTD_NAND_ECC_SMC is not set +# CONFIG_MTD_NAND_MUSEUM_IDS is not set +CONFIG_MTD_NAND_IDS=y +# CONFIG_MTD_NAND_DISKONCHIP is not set +CONFIG_MTD_NAND_AT91=y +# CONFIG_MTD_NAND_NANDSIM is not set +# CONFIG_MTD_NAND_PLATFORM is not set +# CONFIG_MTD_ALAUDA is not set +# CONFIG_MTD_ONENAND is not set + +# +# UBI - Unsorted block images +# +# CONFIG_MTD_UBI is not set +# CONFIG_PARPORT is not set +CONFIG_BLK_DEV=y +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set +CONFIG_MISC_DEVICES=y +# CONFIG_EEPROM_93CX6 is not set +CONFIG_ATMEL_SSC=y + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_DMA=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +CONFIG_SCSI_MULTI_LUN=y +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set +# CONFIG_SCSI_SRP_ATTRS is not set +CONFIG_SCSI_LOWLEVEL=y +# CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_DEBUG is not set +# CONFIG_ATA is not set +# CONFIG_MD is not set +CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set +# CONFIG_VETH is not set +CONFIG_PHYLIB=y + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +# CONFIG_CICADA_PHY is not set +# CONFIG_VITESSE_PHY is not set +# CONFIG_SMSC_PHY is not set +# CONFIG_BROADCOM_PHY is not set +# CONFIG_ICPLUS_PHY is not set +# CONFIG_FIXED_PHY is not set +# CONFIG_MDIO_BITBANG is not set +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +CONFIG_MACB=y +# CONFIG_AX88796 is not set +# CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set +# CONFIG_B44 is not set +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set + +# +# Wireless LAN +# +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set +# CONFIG_ISDN is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +CONFIG_INPUT_EVDEV=y +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_TOUCHSCREEN_ADS7846=y +# CONFIG_TOUCHSCREEN_FUJITSU is not set +# CONFIG_TOUCHSCREEN_GUNZE is not set +# CONFIG_TOUCHSCREEN_ELO is not set +# CONFIG_TOUCHSCREEN_MTOUCH is not set +# CONFIG_TOUCHSCREEN_MK712 is not set +# CONFIG_TOUCHSCREEN_PENMOUNT is not set +# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set +# CONFIG_TOUCHSCREEN_TOUCHWIN is not set +# CONFIG_TOUCHSCREEN_UCB1400 is not set +# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_ATMEL=y +CONFIG_SERIAL_ATMEL_CONSOLE=y +# CONFIG_SERIAL_ATMEL_TTYAT is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_IPMI_HANDLER is not set +CONFIG_HW_RANDOM=y +# CONFIG_NVRAM is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set +# CONFIG_TCG_TPM is not set +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_GPIO is not set +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_SIMTEC is not set +# CONFIG_I2C_TAOS_EVM is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_TINY_USB is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_DS1682 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_SENSORS_TSL2550 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +CONFIG_SPI=y +# CONFIG_SPI_DEBUG is not set +CONFIG_SPI_MASTER=y + +# +# SPI Master Controller Drivers +# +CONFIG_SPI_ATMEL=y +# CONFIG_SPI_BITBANG is not set + +# +# SPI Protocol Masters +# +# CONFIG_SPI_AT25 is not set +# CONFIG_SPI_SPIDEV is not set +# CONFIG_SPI_TLE62X0 is not set +# CONFIG_W1 is not set +# CONFIG_POWER_SUPPLY is not set +# CONFIG_HWMON is not set +CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_NOWAYOUT=y + +# +# Watchdog Device Drivers +# +# CONFIG_SOFT_WATCHDOG is not set + +# +# USB-based Watchdog Cards +# +# CONFIG_USBPCWATCHDOG is not set + +# +# Sonics Silicon Backplane +# +CONFIG_SSB_POSSIBLE=y +# CONFIG_SSB is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +# CONFIG_DVB_CORE is not set +# CONFIG_DAB is not set + +# +# Graphics support +# +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set +# CONFIG_FB_SYS_FILLRECT is not set +# CONFIG_FB_SYS_COPYAREA is not set +# CONFIG_FB_SYS_IMAGEBLIT is not set +# CONFIG_FB_SYS_FOPS is not set +CONFIG_FB_DEFERRED_IO=y +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frame buffer hardware drivers +# +# CONFIG_FB_S1D13XXX is not set +CONFIG_FB_ATMEL=y +# CONFIG_FB_VIRTUAL is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set + +# +# Console display driver support +# +# CONFIG_VGA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE is not set +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +CONFIG_LOGO_LINUX_VGA16=y +# CONFIG_LOGO_LINUX_CLUT224 is not set + +# +# Sound +# +# CONFIG_SOUND is not set +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +CONFIG_HID_DEBUG=y +# CONFIG_HIDRAW is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +CONFIG_USB_SUPPORT=y +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +# CONFIG_USB_ARCH_HAS_EHCI is not set +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +CONFIG_USB_DEVICE_CLASS=y +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_ONETOUCH is not set +# CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_ADUTUX is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_BERRY_CHARGE is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGET is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_FTDI_ELAN is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TRANCEVIBRATOR is not set +# CONFIG_USB_IOWARRIOR is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set +CONFIG_MMC=y +# CONFIG_MMC_DEBUG is not set +# CONFIG_MMC_UNSAFE_RESUME is not set + +# +# MMC/SD Card Drivers +# +CONFIG_MMC_BLOCK=y +CONFIG_MMC_BLOCK_BOUNCE=y +# CONFIG_SDIO_UART is not set + +# +# MMC/SD Host Controller Drivers +# +CONFIG_MMC_AT91=y +# CONFIG_MMC_SPI is not set +# CONFIG_NEW_LEDS is not set +CONFIG_RTC_LIB=y +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +# CONFIG_MSDOS_FS is not set +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLB_PAGE is not set +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_FS_WBUF_VERIFY is not set +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_FS_XATTR is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +# CONFIG_JFFS2_LZO is not set +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +CONFIG_CRAMFS=y +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set +CONFIG_NETWORK_FILESYSTEMS=y +CONFIG_NFS_FS=y +# CONFIG_NFS_V3 is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_SUNRPC_BIND34 is not set +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +CONFIG_NLS_CODEPAGE_850=y +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ISO8859_1=y +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set +# CONFIG_DLM is not set +CONFIG_INSTRUMENTATION=y +# CONFIG_PROFILING is not set +# CONFIG_MARKERS is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_WARN_DEPRECATED=y +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_DETECT_SOFTLOCKUP=y +CONFIG_SCHED_DEBUG=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +# CONFIG_DEBUG_SG is not set +CONFIG_FRAME_POINTER=y +CONFIG_FORCED_INLINING=y +# CONFIG_BOOT_PRINTK_DELAY is not set +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_SAMPLES is not set +CONFIG_DEBUG_USER=y +# CONFIG_DEBUG_ERRORS is not set +# CONFIG_DEBUG_LL is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set +# CONFIG_SECURITY_FILE_CAPABILITIES is not set +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set +CONFIG_CRC32=y +# CONFIG_CRC7 is not set +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y diff --git a/arch/arm/configs/collie_defconfig b/arch/arm/configs/collie_defconfig index 970c8c772eb..4264e273202 100644 --- a/arch/arm/configs/collie_defconfig +++ b/arch/arm/configs/collie_defconfig @@ -367,7 +367,6 @@ CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set -CONFIG_MTD_OBSOLETE_CHIPS=y CONFIG_MTD_SHARP=y # CONFIG_MTD_XIP is not set diff --git a/arch/arm/configs/msm_defconfig b/arch/arm/configs/msm_defconfig new file mode 100644 index 00000000000..ae4c5e62086 --- /dev/null +++ b/arch/arm/configs/msm_defconfig @@ -0,0 +1,895 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.23 +# Wed Nov 7 01:36:45 2007 +# +CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +# CONFIG_GENERIC_GPIO is not set +CONFIG_GENERIC_TIME=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_MMU=y +# CONFIG_NO_IOPORT is not set +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_GPIOS=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ZONE_DMA=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# General setup +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +# CONFIG_SYSVIPC is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_USER_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=17 +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_PANIC_TIMEOUT=0 +# CONFIG_EMBEDDED is not set +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_ANON_INODES=y +CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_EVENTFD=y +CONFIG_SHMEM=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_MODULES is not set +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set +# CONFIG_BLK_DEV_BSG is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System Type +# +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_GOLDFISH is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_AT91 is not set +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_KS8695 is not set +# CONFIG_ARCH_NS9XXX is not set +# CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_PNX4008 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_DAVINCI is not set +# CONFIG_ARCH_OMAP is not set +CONFIG_ARCH_MSM7X00A=y + +# +# Boot options +# + +# +# Power management +# + +# +# MSM7200 Board Type +# +CONFIG_MACH_HALIBUT=y +CONFIG_SERIAL_MSM=y +CONFIG_SERIAL_MSM_CONSOLE=y +# CONFIG_SERIAL_MSM_NOINIT is not set +CONFIG_MSM_SMD=y + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_V6=y +# CONFIG_CPU_32v6K is not set +CONFIG_CPU_32v6=y +CONFIG_CPU_ABRT_EV6=y +CONFIG_CPU_CACHE_V6=y +CONFIG_CPU_CACHE_VIPT=y +CONFIG_CPU_COPY_V6=y +CONFIG_CPU_TLB_V6=y +CONFIG_CPU_HAS_ASID=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y + +# +# Processor Features +# +CONFIG_ARM_THUMB=y +# CONFIG_CPU_ICACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_CPU_BPREDICT_DISABLE is not set +# CONFIG_OUTER_CACHE is not set + +# +# Bus support +# +# CONFIG_PCI_SYSCALL is not set +# CONFIG_ARCH_SUPPORTS_MSI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +CONFIG_TICK_ONESHOT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT=y +CONFIG_HZ=100 +CONFIG_AEABI=y +# CONFIG_OABI_COMPAT is not set +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +CONFIG_RESOURCES_64BIT=y +CONFIG_ZONE_DMA_FLAG=1 +CONFIG_BOUNCE=y +CONFIG_VIRT_TO_BUS=y +CONFIG_ALIGNMENT_TRAP=y + +# +# Boot options +# +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="mem=64M console=ttyMSM,115200n8" +# CONFIG_XIP_KERNEL is not set +# CONFIG_KEXEC is not set + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +# CONFIG_VFP is not set + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_AOUT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +CONFIG_PM=y +CONFIG_SUSPEND_UP_POSSIBLE=y + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_PACKET is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_PNP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set +# CONFIG_IP_DCCP is not set +# CONFIG_IP_SCTP is not set +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set +# CONFIG_IEEE80211 is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set +# CONFIG_CONNECTOR is not set +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y +# CONFIG_MTD_AFS_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +# CONFIG_MTD_CFI is not set +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set +CONFIG_MTD_MSM_NAND=y + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set +# CONFIG_MTD_GOLDFISH_NAND is not set +# CONFIG_MTD_NAND is not set +# CONFIG_MTD_ONENAND is not set + +# +# UBI - Unsorted block images +# +# CONFIG_MTD_UBI is not set +# CONFIG_PARPORT is not set +CONFIG_BLK_DEV=y +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set +# CONFIG_SCSI_DMA is not set +# CONFIG_SCSI_NETLINK is not set +# CONFIG_ATA is not set +# CONFIG_MD is not set +CONFIG_NETDEVICES=y +# CONFIG_NETDEVICES_MULTIQUEUE is not set +CONFIG_DUMMY=y +# CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set +# CONFIG_PHYLIB is not set +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_AX88796 is not set +CONFIG_SMC91X=y +# CONFIG_DM9000 is not set +CONFIG_NETDEV_1000=y +CONFIG_NETDEV_10000=y + +# +# Wireless LAN +# +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set +# CONFIG_WAN is not set +CONFIG_PPP=y +# CONFIG_PPP_MULTILINK is not set +# CONFIG_PPP_FILTER is not set +CONFIG_PPP_ASYNC=y +# CONFIG_PPP_SYNC_TTY is not set +CONFIG_PPP_DEFLATE=y +CONFIG_PPP_BSDCOMP=y +# CONFIG_PPP_MPPE is not set +# CONFIG_PPPOE is not set +# CONFIG_PPPOL2TP is not set +# CONFIG_SLIP is not set +CONFIG_SLHC=y +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +CONFIG_MSM_RMNET=y +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set +# CONFIG_ISDN is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +CONFIG_INPUT_EVDEV=y +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +CONFIG_INPUT_KEYBOARD=y +# CONFIG_KEYBOARD_ATKBD is not set +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +# CONFIG_KEYBOARD_STOWAWAY is not set +# CONFIG_KEYBOARD_GOLDFISH_EVENTS is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set +CONFIG_INPUT_TOUCHSCREEN=y +# CONFIG_TOUCHSCREEN_FUJITSU is not set +# CONFIG_TOUCHSCREEN_GUNZE is not set +# CONFIG_TOUCHSCREEN_ELO is not set +# CONFIG_TOUCHSCREEN_MTOUCH is not set +# CONFIG_TOUCHSCREEN_MK712 is not set +# CONFIG_TOUCHSCREEN_PENMOUNT is not set +# CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_MEP is not set +CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI=y +# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set +# CONFIG_TOUCHSCREEN_TOUCHWIN is not set +# CONFIG_TOUCHSCREEN_UCB1400 is not set +# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set +CONFIG_INPUT_MISC=y +# CONFIG_INPUT_ATI_REMOTE is not set +# CONFIG_INPUT_ATI_REMOTE2 is not set +# CONFIG_INPUT_KEYSPAN_REMOTE is not set +# CONFIG_INPUT_POWERMATE is not set +# CONFIG_INPUT_YEALINK is not set +# CONFIG_INPUT_UINPUT is not set +CONFIG_INPUT_GPIO=y + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +CONFIG_VT_HW_CONSOLE_BINDING=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set +# CONFIG_IPMI_HANDLER is not set +# CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_NVRAM is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set +# CONFIG_TCG_TPM is not set +CONFIG_DCC_TTY=y +# CONFIG_GOLDFISH_TTY is not set +CONFIG_BINDER=y +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +# CONFIG_I2C_CHARDEV is not set + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +CONFIG_I2C_MSM=y +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_SIMTEC is not set +# CONFIG_I2C_TAOS_EVM is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_DS1682 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +CONFIG_SENSORS_PCA9633=y +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +CONFIG_SENSORS_AKM8976=y +# CONFIG_SENSORS_TSL2550 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set +# CONFIG_W1 is not set +# CONFIG_HWMON is not set +CONFIG_MISC_DEVICES=y +# CONFIG_EEPROM_93CX6 is not set +CONFIG_LOW_MEMORY_KILLER=y + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +# CONFIG_DVB_CORE is not set +CONFIG_DAB=y + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set +# CONFIG_VGASTATE is not set +CONFIG_VIDEO_OUTPUT_CONTROL=y +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +# CONFIG_FB_SYS_FILLRECT is not set +# CONFIG_FB_SYS_COPYAREA is not set +# CONFIG_FB_SYS_IMAGEBLIT is not set +# CONFIG_FB_SYS_FOPS is not set +CONFIG_FB_DEFERRED_IO=y +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +CONFIG_FB_MODE_HELPERS=y +CONFIG_FB_TILEBLITTING=y + +# +# Frame buffer hardware drivers +# +# CONFIG_FB_S1D13XXX is not set +CONFIG_FB_MSM=y +# CONFIG_FB_GOLDFISH is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +# CONFIG_VGA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y +# CONFIG_LOGO is not set + +# +# Sound +# +# CONFIG_SOUND is not set +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set +CONFIG_USB_SUPPORT=y +CONFIG_USB_ARCH_HAS_HCD=y +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# USB Function Support +# +CONFIG_USB_FUNCTION=y +CONFIG_USB_FUNCTION_MSM_HSUSB=y +# CONFIG_USB_FUNCTION_NULL is not set +# CONFIG_USB_FUNCTION_ZERO is not set +# CONFIG_USB_FUNCTION_LOOPBACK is not set +CONFIG_USB_FUNCTION_ADB=y +# CONFIG_MMC is not set +CONFIG_RTC_LIB=y +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Android +# +# CONFIG_ANDROID_GADGET is not set +# CONFIG_ANDROID_RAM_CONSOLE is not set +CONFIG_ANDROID_LOGGER=y +CONFIG_ANDROID_VIBRATOR=y + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +CONFIG_YAFFS_FS=y +CONFIG_YAFFS_YAFFS1=y +# CONFIG_YAFFS_9BYTE_TAGS is not set +# CONFIG_YAFFS_DOES_ECC is not set +CONFIG_YAFFS_YAFFS2=y +CONFIG_YAFFS_AUTO_YAFFS2=y +# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set +CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS=10 +# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set +# CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set +CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y +# CONFIG_JFFS2_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_DETECT_SOFTLOCKUP=y +CONFIG_SCHED_DEBUG=y +CONFIG_SCHEDSTATS=y +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_PREEMPT=y +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_LOCK_STAT is not set +CONFIG_DEBUG_SPINLOCK_SLEEP=y +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +CONFIG_FRAME_POINTER=y +# CONFIG_FORCED_INLINING is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_DEBUG_USER is not set +# CONFIG_DEBUG_ERRORS is not set +CONFIG_DEBUG_LL=y +# CONFIG_DEBUG_ICEDCC is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +CONFIG_CRC_CCITT=y +# CONFIG_CRC16 is not set +# CONFIG_CRC_ITU_T is not set +CONFIG_CRC32=y +# CONFIG_CRC7 is not set +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index 593b56509f4..faa76192115 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_ISA_DMA) += dma-isa.o obj-$(CONFIG_PCI) += bios32.o isa.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_KPROBES) += kprobes.o kprobes-decode.o obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c index 0a3e9ad297d..2f080a35a2d 100644 --- a/arch/arm/kernel/dma-isa.c +++ b/arch/arm/kernel/dma-isa.c @@ -216,7 +216,7 @@ void __init isa_init_dma(dma_t *dma) request_dma(DMA_ISA_CASCADE, "cascade"); - for (i = 0; i < sizeof(dma_resources) / sizeof(dma_resources[0]); i++) + for (i = 0; i < ARRAY_SIZE(dma_resources); i++) request_resource(&ioport_resource, dma_resources + i); } } diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 29dec080a60..a46d5b45676 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -11,8 +11,8 @@ * * Low-level vector interface routines * - * Note: there is a StrongARM bug in the STMIA rn, {regs}^ instruction that causes - * it to save wrong values... Be aware! + * Note: there is a StrongARM bug in the STMIA rn, {regs}^ instruction + * that causes it to save wrong values... Be aware! */ #include <asm/memory.h> @@ -58,6 +58,12 @@ .endm +#ifdef CONFIG_KPROBES + .section .kprobes.text,"ax",%progbits +#else + .text +#endif + /* * Invalid mode handlers */ @@ -112,8 +118,8 @@ common_invalid: #define SPFIX(code...) #endif - .macro svc_entry - sub sp, sp, #S_FRAME_SIZE + .macro svc_entry, stack_hole=0 + sub sp, sp, #(S_FRAME_SIZE + \stack_hole) SPFIX( tst sp, #4 ) SPFIX( bicne sp, sp, #4 ) stmib sp, {r1 - r12} @@ -121,7 +127,7 @@ common_invalid: ldmia r0, {r1 - r3} add r5, sp, #S_SP @ here for interlock avoidance mov r4, #-1 @ "" "" "" "" - add r0, sp, #S_FRAME_SIZE @ "" "" "" "" + add r0, sp, #(S_FRAME_SIZE + \stack_hole) SPFIX( addne r0, r0, #4 ) str r1, [sp] @ save the "real" r0 copied @ from the exception stack @@ -242,7 +248,14 @@ svc_preempt: .align 5 __und_svc: +#ifdef CONFIG_KPROBES + @ If a kprobe is about to simulate a "stmdb sp..." instruction, + @ it obviously needs free stack space which then will belong to + @ the saved context. + svc_entry 64 +#else svc_entry +#endif @ @ call emulation code, which returns using r9 if it has emulated @@ -480,6 +493,13 @@ __und_usr: * co-processor instructions. However, we have to watch out * for the ARM6/ARM7 SWI bug. * + * NEON is a special case that has to be handled here. Not all + * NEON instructions are co-processor instructions, so we have + * to make a special case of checking for them. Plus, there's + * five groups of them, so we have a table of mask/opcode pairs + * to check against, and if any match then we branch off into the + * NEON handler code. + * * Emulators may wish to make use of the following registers: * r0 = instruction opcode. * r2 = PC+4 @@ -488,6 +508,23 @@ __und_usr: * lr = unrecognised instruction return address */ call_fpe: +#ifdef CONFIG_NEON + adr r6, .LCneon_opcodes +2: + ldr r7, [r6], #4 @ mask value + cmp r7, #0 @ end mask? + beq 1f + and r8, r0, r7 + ldr r7, [r6], #4 @ opcode bits matching in mask + cmp r8, r7 @ NEON instruction? + bne 2b + get_thread_info r10 + mov r7, #1 + strb r7, [r10, #TI_USED_CP + 10] @ mark CP#10 as used + strb r7, [r10, #TI_USED_CP + 11] @ mark CP#11 as used + b do_vfp @ let VFP handler handle this +1: +#endif tst r0, #0x08000000 @ only CDP/CPRT/LDC/STC have bit 27 #if defined(CONFIG_CPU_ARM610) || defined(CONFIG_CPU_ARM710) and r8, r0, #0x0f000000 @ mask out op-code bits @@ -537,6 +574,20 @@ call_fpe: mov pc, lr @ CP#14 (Debug) mov pc, lr @ CP#15 (Control) +#ifdef CONFIG_NEON + .align 6 + +.LCneon_opcodes: + .word 0xfe000000 @ mask + .word 0xf2000000 @ opcode + + .word 0xff100000 @ mask + .word 0xf4000000 @ opcode + + .word 0x00000000 @ mask + .word 0x00000000 @ opcode +#endif + do_fpe: enable_irq ldr r4, .LCfp @@ -555,7 +606,7 @@ do_fpe: .data ENTRY(fp_enter) .word no_fp - .text + .previous no_fp: mov pc, lr diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 33e6cc2ffd3..6c90c50a9ee 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -72,7 +72,7 @@ no_work_pending: ldr r1, [sp, #S_PSR] @ get calling cpsr ldr lr, [sp, #S_PC]! @ get pc msr spsr_cxsf, r1 @ save in spsr_svc - ldmdb sp, {r0 - lr}^ @ get calling r1 - lr + ldmdb sp, {r0 - lr}^ @ get calling r0 - lr mov r0, r0 add sp, sp, #S_FRAME_SIZE - S_PC movs pc, lr @ return & move spsr_svc into cpsr diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c new file mode 100644 index 00000000000..d51bc8b6055 --- /dev/null +++ b/arch/arm/kernel/kprobes-decode.c @@ -0,0 +1,1529 @@ +/* + * arch/arm/kernel/kprobes-decode.c + * + * Copyright (C) 2006, 2007 Motorola Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +/* + * We do not have hardware single-stepping on ARM, This + * effort is further complicated by the ARM not having a + * "next PC" register. Instructions that change the PC + * can't be safely single-stepped in a MP environment, so + * we have a lot of work to do: + * + * In the prepare phase: + * *) If it is an instruction that does anything + * with the CPU mode, we reject it for a kprobe. + * (This is out of laziness rather than need. The + * instructions could be simulated.) + * + * *) Otherwise, decode the instruction rewriting its + * registers to take fixed, ordered registers and + * setting a handler for it to run the instruction. + * + * In the execution phase by an instruction's handler: + * + * *) If the PC is written to by the instruction, the + * instruction must be fully simulated in software. + * If it is a conditional instruction, the handler + * will use insn[0] to copy its condition code to + * set r0 to 1 and insn[1] to "mov pc, lr" to return. + * + * *) Otherwise, a modified form of the instruction is + * directly executed. Its handler calls the + * instruction in insn[0]. In insn[1] is a + * "mov pc, lr" to return. + * + * Before calling, load up the reordered registers + * from the original instruction's registers. If one + * of the original input registers is the PC, compute + * and adjust the appropriate input register. + * + * After call completes, copy the output registers to + * the original instruction's original registers. + * + * We don't use a real breakpoint instruction since that + * would have us in the kernel go from SVC mode to SVC + * mode losing the link register. Instead we use an + * undefined instruction. To simplify processing, the + * undefined instruction used for kprobes must be reserved + * exclusively for kprobes use. + * + * TODO: ifdef out some instruction decoding based on architecture. + */ + +#include <linux/kernel.h> +#include <linux/kprobes.h> + +#define sign_extend(x, signbit) ((x) | (0 - ((x) & (1 << (signbit))))) + +#define branch_displacement(insn) sign_extend(((insn) & 0xffffff) << 2, 25) + +#define PSR_fs (PSR_f|PSR_s) + +#define KPROBE_RETURN_INSTRUCTION 0xe1a0f00e /* mov pc, lr */ +#define SET_R0_TRUE_INSTRUCTION 0xe3a00001 /* mov r0, #1 */ + +#define truecc_insn(insn) (((insn) & 0xf0000000) | \ + (SET_R0_TRUE_INSTRUCTION & 0x0fffffff)) + +typedef long (insn_0arg_fn_t)(void); +typedef long (insn_1arg_fn_t)(long); +typedef long (insn_2arg_fn_t)(long, long); +typedef long (insn_3arg_fn_t)(long, long, long); +typedef long (insn_4arg_fn_t)(long, long, long, long); +typedef long long (insn_llret_0arg_fn_t)(void); +typedef long long (insn_llret_3arg_fn_t)(long, long, long); +typedef long long (insn_llret_4arg_fn_t)(long, long, long, long); + +union reg_pair { + long long dr; +#ifdef __LITTLE_ENDIAN + struct { long r0, r1; }; +#else + struct { long r1, r0; }; +#endif +}; + +/* + * For STR and STM instructions, an ARM core may choose to use either + * a +8 or a +12 displacement from the current instruction's address. + * Whichever value is chosen for a given core, it must be the same for + * both instructions and may not change. This function measures it. + */ + +static int str_pc_offset; + +static void __init find_str_pc_offset(void) +{ + int addr, scratch, ret; + + __asm__ ( + "sub %[ret], pc, #4 \n\t" + "str pc, %[addr] \n\t" + "ldr %[scr], %[addr] \n\t" + "sub %[ret], %[scr], %[ret] \n\t" + : [ret] "=r" (ret), [scr] "=r" (scratch), [addr] "+m" (addr)); + + str_pc_offset = ret; +} + +/* + * The insnslot_?arg_r[w]flags() functions below are to keep the + * msr -> *fn -> mrs instruction sequences indivisible so that + * the state of the CPSR flags aren't inadvertently modified + * just before or just after the call. + */ + +static inline long __kprobes +insnslot_0arg_rflags(long cpsr, insn_0arg_fn_t *fn) +{ + register long ret asm("r0"); + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret) + : [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + return ret; +} + +static inline long long __kprobes +insnslot_llret_0arg_rflags(long cpsr, insn_llret_0arg_fn_t *fn) +{ + register long ret0 asm("r0"); + register long ret1 asm("r1"); + union reg_pair fnr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret0), "=r" (ret1) + : [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + fnr.r0 = ret0; + fnr.r1 = ret1; + return fnr.dr; +} + +static inline long __kprobes +insnslot_1arg_rflags(long r0, long cpsr, insn_1arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long ret asm("r0"); + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret) + : "0" (rr0), [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + return ret; +} + +static inline long __kprobes +insnslot_2arg_rflags(long r0, long r1, long cpsr, insn_2arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long ret asm("r0"); + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret) + : "0" (rr0), "r" (rr1), + [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + return ret; +} + +static inline long __kprobes +insnslot_3arg_rflags(long r0, long r1, long r2, long cpsr, insn_3arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long ret asm("r0"); + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret) + : "0" (rr0), "r" (rr1), "r" (rr2), + [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + return ret; +} + +static inline long long __kprobes +insnslot_llret_3arg_rflags(long r0, long r1, long r2, long cpsr, + insn_llret_3arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long ret0 asm("r0"); + register long ret1 asm("r1"); + union reg_pair fnr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret0), "=r" (ret1) + : "0" (rr0), "r" (rr1), "r" (rr2), + [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + fnr.r0 = ret0; + fnr.r1 = ret1; + return fnr.dr; +} + +static inline long __kprobes +insnslot_4arg_rflags(long r0, long r1, long r2, long r3, long cpsr, + insn_4arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long rr3 asm("r3") = r3; + register long ret asm("r0"); + + __asm__ __volatile__ ( + "msr cpsr_fs, %[cpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + : "=r" (ret) + : "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3), + [cpsr] "r" (cpsr), [fn] "r" (fn) + : "lr", "cc" + ); + return ret; +} + +static inline long __kprobes +insnslot_1arg_rwflags(long r0, long *cpsr, insn_1arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long ret asm("r0"); + long oldcpsr = *cpsr; + long newcpsr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[oldcpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + "mrs %[newcpsr], cpsr \n\t" + : "=r" (ret), [newcpsr] "=r" (newcpsr) + : "0" (rr0), [oldcpsr] "r" (oldcpsr), [fn] "r" (fn) + : "lr", "cc" + ); + *cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs); + return ret; +} + +static inline long __kprobes +insnslot_2arg_rwflags(long r0, long r1, long *cpsr, insn_2arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long ret asm("r0"); + long oldcpsr = *cpsr; + long newcpsr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[oldcpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + "mrs %[newcpsr], cpsr \n\t" + : "=r" (ret), [newcpsr] "=r" (newcpsr) + : "0" (rr0), "r" (rr1), [oldcpsr] "r" (oldcpsr), [fn] "r" (fn) + : "lr", "cc" + ); + *cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs); + return ret; +} + +static inline long __kprobes +insnslot_3arg_rwflags(long r0, long r1, long r2, long *cpsr, + insn_3arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long ret asm("r0"); + long oldcpsr = *cpsr; + long newcpsr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[oldcpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + "mrs %[newcpsr], cpsr \n\t" + : "=r" (ret), [newcpsr] "=r" (newcpsr) + : "0" (rr0), "r" (rr1), "r" (rr2), + [oldcpsr] "r" (oldcpsr), [fn] "r" (fn) + : "lr", "cc" + ); + *cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs); + return ret; +} + +static inline long __kprobes +insnslot_4arg_rwflags(long r0, long r1, long r2, long r3, long *cpsr, + insn_4arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long rr3 asm("r3") = r3; + register long ret asm("r0"); + long oldcpsr = *cpsr; + long newcpsr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[oldcpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + "mrs %[newcpsr], cpsr \n\t" + : "=r" (ret), [newcpsr] "=r" (newcpsr) + : "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3), + [oldcpsr] "r" (oldcpsr), [fn] "r" (fn) + : "lr", "cc" + ); + *cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs); + return ret; +} + +static inline long long __kprobes +insnslot_llret_4arg_rwflags(long r0, long r1, long r2, long r3, long *cpsr, + insn_llret_4arg_fn_t *fn) +{ + register long rr0 asm("r0") = r0; + register long rr1 asm("r1") = r1; + register long rr2 asm("r2") = r2; + register long rr3 asm("r3") = r3; + register long ret0 asm("r0"); + register long ret1 asm("r1"); + long oldcpsr = *cpsr; + long newcpsr; + union reg_pair fnr; + + __asm__ __volatile__ ( + "msr cpsr_fs, %[oldcpsr] \n\t" + "mov lr, pc \n\t" + "mov pc, %[fn] \n\t" + "mrs %[newcpsr], cpsr \n\t" + : "=r" (ret0), "=r" (ret1), [newcpsr] "=r" (newcpsr) + : "0" (rr0), "r" (rr1), "r" (rr2), "r" (rr3), + [oldcpsr] "r" (oldcpsr), [fn] "r" (fn) + : "lr", "cc" + ); + *cpsr = (oldcpsr & ~PSR_fs) | (newcpsr & PSR_fs); + fnr.r0 = ret0; + fnr.r1 = ret1; + return fnr.dr; +} + +/* + * To avoid the complications of mimicing single-stepping on a + * processor without a Next-PC or a single-step mode, and to + * avoid having to deal with the side-effects of boosting, we + * simulate or emulate (almost) all ARM instructions. + * + * "Simulation" is where the instruction's behavior is duplicated in + * C code. "Emulation" is where the original instruction is rewritten + * and executed, often by altering its registers. + * + * By having all behavior of the kprobe'd instruction completed before + * returning from the kprobe_handler(), all locks (scheduler and + * interrupt) can safely be released. There is no need for secondary + * breakpoints, no race with MP or preemptable kernels, nor having to + * clean up resources counts at a later time impacting overall system + * performance. By rewriting the instruction, only the minimum registers + * need to be loaded and saved back optimizing performance. + * + * Calling the insnslot_*_rwflags version of a function doesn't hurt + * anything even when the CPSR flags aren't updated by the + * instruction. It's just a little slower in return for saving + * a little space by not having a duplicate function that doesn't + * update the flags. (The same optimization can be said for + * instructions that do or don't perform register writeback) + * Also, instructions can either read the flags, only write the + * flags, or read and write the flags. To save combinations + * rather than for sheer performance, flag functions just assume + * read and write of flags. + */ + +static void __kprobes simulate_bbl(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + long iaddr = (long)p->addr; + int disp = branch_displacement(insn); + + if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn)) + return; + + if (insn & (1 << 24)) + regs->ARM_lr = iaddr + 4; + + regs->ARM_pc = iaddr + 8 + disp; +} + +static void __kprobes simulate_blx1(struct kprobe *p, struct pt_regs *regs) +{ + kprobe_opcode_t insn = p->opcode; + long iaddr = (long)p->addr; + int disp = branch_displacement(insn); + + regs->ARM_lr = iaddr + 4; + regs->ARM_pc = iaddr + 8 + disp + ((insn >> 23) & 0x2); + regs->ARM_cpsr |= PSR_T_BIT; +} + +static void __kprobes simulate_blx2bx(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rm = insn & 0xf; + long rmv = regs->uregs[rm]; + + if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn)) + return; + + if (insn & (1 << 5)) + regs->ARM_lr = (long)p->addr + 4; + + regs->ARM_pc = rmv & ~0x1; + regs->ARM_cpsr &= ~PSR_T_BIT; + if (rmv & 0x1) + regs->ARM_cpsr |= PSR_T_BIT; +} + +static void __kprobes simulate_ldm1stm1(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rn = (insn >> 16) & 0xf; + int lbit = insn & (1 << 20); + int wbit = insn & (1 << 21); + int ubit = insn & (1 << 23); + int pbit = insn & (1 << 24); + long *addr = (long *)regs->uregs[rn]; + int reg_bit_vector; + int reg_count; + + if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn)) + return; + + reg_count = 0; + reg_bit_vector = insn & 0xffff; + while (reg_bit_vector) { + reg_bit_vector &= (reg_bit_vector - 1); + ++reg_count; + } + + if (!ubit) + addr -= reg_count; + addr += (!pbit ^ !ubit); + + reg_bit_vector = insn & 0xffff; + while (reg_bit_vector) { + int reg = __ffs(reg_bit_vector); + reg_bit_vector &= (reg_bit_vector - 1); + if (lbit) + regs->uregs[reg] = *addr++; + else + *addr++ = regs->uregs[reg]; + } + + if (wbit) { + if (!ubit) + addr -= reg_count; + addr -= (!pbit ^ !ubit); + regs->uregs[rn] = (long)addr; + } +} + +static void __kprobes simulate_stm1_pc(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + + if (!insnslot_1arg_rflags(0, regs->ARM_cpsr, i_fn)) + return; + + regs->ARM_pc = (long)p->addr + str_pc_offset; + simulate_ldm1stm1(p, regs); + regs->ARM_pc = (long)p->addr + 4; +} + +static void __kprobes simulate_mov_ipsp(struct kprobe *p, struct pt_regs *regs) +{ + regs->uregs[12] = regs->uregs[13]; +} + +static void __kprobes emulate_ldcstc(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rn = (insn >> 16) & 0xf; + long rnv = regs->uregs[rn]; + + /* Save Rn in case of writeback. */ + regs->uregs[rn] = insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_ldrd(struct kprobe *p, struct pt_regs *regs) +{ + insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; /* rm may be invalid, don't care. */ + + /* Not following the C calling convention here, so need asm(). */ + __asm__ __volatile__ ( + "ldr r0, %[rn] \n\t" + "ldr r1, %[rm] \n\t" + "msr cpsr_fs, %[cpsr]\n\t" + "mov lr, pc \n\t" + "mov pc, %[i_fn] \n\t" + "str r0, %[rn] \n\t" /* in case of writeback */ + "str r2, %[rd0] \n\t" + "str r3, %[rd1] \n\t" + : [rn] "+m" (regs->uregs[rn]), + [rd0] "=m" (regs->uregs[rd]), + [rd1] "=m" (regs->uregs[rd+1]) + : [rm] "m" (regs->uregs[rm]), + [cpsr] "r" (regs->ARM_cpsr), + [i_fn] "r" (i_fn) + : "r0", "r1", "r2", "r3", "lr", "cc" + ); +} + +static void __kprobes emulate_strd(struct kprobe *p, struct pt_regs *regs) +{ + insn_4arg_fn_t *i_fn = (insn_4arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; + long rnv = regs->uregs[rn]; + long rmv = regs->uregs[rm]; /* rm/rmv may be invalid, don't care. */ + + regs->uregs[rn] = insnslot_4arg_rflags(rnv, rmv, regs->uregs[rd], + regs->uregs[rd+1], + regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_ldr(struct kprobe *p, struct pt_regs *regs) +{ + insn_llret_3arg_fn_t *i_fn = (insn_llret_3arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + union reg_pair fnr; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; + long rdv; + long rnv = regs->uregs[rn]; + long rmv = regs->uregs[rm]; /* rm/rmv may be invalid, don't care. */ + long cpsr = regs->ARM_cpsr; + + fnr.dr = insnslot_llret_3arg_rflags(rnv, 0, rmv, cpsr, i_fn); + regs->uregs[rn] = fnr.r0; /* Save Rn in case of writeback. */ + rdv = fnr.r1; + + if (rd == 15) { +#if __LINUX_ARM_ARCH__ >= 5 + cpsr &= ~PSR_T_BIT; + if (rdv & 0x1) + cpsr |= PSR_T_BIT; + regs->ARM_cpsr = cpsr; + rdv &= ~0x1; +#else + rdv &= ~0x2; +#endif + } + regs->uregs[rd] = rdv; +} + +static void __kprobes emulate_str(struct kprobe *p, struct pt_regs *regs) +{ + insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + long iaddr = (long)p->addr; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; + long rdv = (rd == 15) ? iaddr + str_pc_offset : regs->uregs[rd]; + long rnv = (rn == 15) ? iaddr + 8 : regs->uregs[rn]; + long rmv = regs->uregs[rm]; /* rm/rmv may be invalid, don't care. */ + + /* Save Rn in case of writeback. */ + regs->uregs[rn] = + insnslot_3arg_rflags(rnv, rdv, rmv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_mrrc(struct kprobe *p, struct pt_regs *regs) +{ + insn_llret_0arg_fn_t *i_fn = (insn_llret_0arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + union reg_pair fnr; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + + fnr.dr = insnslot_llret_0arg_rflags(regs->ARM_cpsr, i_fn); + regs->uregs[rn] = fnr.r0; + regs->uregs[rd] = fnr.r1; +} + +static void __kprobes emulate_mcrr(struct kprobe *p, struct pt_regs *regs) +{ + insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + long rnv = regs->uregs[rn]; + long rdv = regs->uregs[rd]; + + insnslot_2arg_rflags(rnv, rdv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_sat(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rm = insn & 0xf; + long rmv = regs->uregs[rm]; + + /* Writes Q flag */ + regs->uregs[rd] = insnslot_1arg_rwflags(rmv, ®s->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_sel(struct kprobe *p, struct pt_regs *regs) +{ + insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; + long rnv = regs->uregs[rn]; + long rmv = regs->uregs[rm]; + + /* Reads GE bits */ + regs->uregs[rd] = insnslot_2arg_rflags(rnv, rmv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_none(struct kprobe *p, struct pt_regs *regs) +{ + insn_0arg_fn_t *i_fn = (insn_0arg_fn_t *)&p->ainsn.insn[0]; + + insnslot_0arg_rflags(regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_rd12(struct kprobe *p, struct pt_regs *regs) +{ + insn_0arg_fn_t *i_fn = (insn_0arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + + regs->uregs[rd] = insnslot_0arg_rflags(regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_ird12(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int ird = (insn >> 12) & 0xf; + + insnslot_1arg_rflags(regs->uregs[ird], regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_rn16(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rn = (insn >> 16) & 0xf; + long rnv = regs->uregs[rn]; + + insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes emulate_rd12rm0(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rm = insn & 0xf; + long rmv = regs->uregs[rm]; + + regs->uregs[rd] = insnslot_1arg_rflags(rmv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_rd12rn16rm0_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + int rm = insn & 0xf; + long rnv = regs->uregs[rn]; + long rmv = regs->uregs[rm]; + + regs->uregs[rd] = + insnslot_2arg_rwflags(rnv, rmv, ®s->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_rd16rn12rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 16) & 0xf; + int rn = (insn >> 12) & 0xf; + int rs = (insn >> 8) & 0xf; + int rm = insn & 0xf; + long rnv = regs->uregs[rn]; + long rsv = regs->uregs[rs]; + long rmv = regs->uregs[rm]; + + regs->uregs[rd] = + insnslot_3arg_rwflags(rnv, rsv, rmv, ®s->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_rd16rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_2arg_fn_t *i_fn = (insn_2arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 16) & 0xf; + int rs = (insn >> 8) & 0xf; + int rm = insn & 0xf; + long rsv = regs->uregs[rs]; + long rmv = regs->uregs[rm]; + + regs->uregs[rd] = + insnslot_2arg_rwflags(rsv, rmv, ®s->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_rdhi16rdlo12rs8rm0_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_llret_4arg_fn_t *i_fn = (insn_llret_4arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + union reg_pair fnr; + int rdhi = (insn >> 16) & 0xf; + int rdlo = (insn >> 12) & 0xf; + int rs = (insn >> 8) & 0xf; + int rm = insn & 0xf; + long rsv = regs->uregs[rs]; + long rmv = regs->uregs[rm]; + + fnr.dr = insnslot_llret_4arg_rwflags(regs->uregs[rdhi], + regs->uregs[rdlo], rsv, rmv, + ®s->ARM_cpsr, i_fn); + regs->uregs[rdhi] = fnr.r0; + regs->uregs[rdlo] = fnr.r1; +} + +static void __kprobes +emulate_alu_imm_rflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + long rnv = (rn == 15) ? (long)p->addr + 8 : regs->uregs[rn]; + + regs->uregs[rd] = insnslot_1arg_rflags(rnv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_alu_imm_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_1arg_fn_t *i_fn = (insn_1arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; + long rnv = (rn == 15) ? (long)p->addr + 8 : regs->uregs[rn]; + + regs->uregs[rd] = insnslot_1arg_rwflags(rnv, ®s->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_alu_rflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + long ppc = (long)p->addr + 8; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; /* rn/rnv/rs/rsv may be */ + int rs = (insn >> 8) & 0xf; /* invalid, don't care. */ + int rm = insn & 0xf; + long rnv = (rn == 15) ? ppc : regs->uregs[rn]; + long rmv = (rm == 15) ? ppc : regs->uregs[rm]; + long rsv = regs->uregs[rs]; + + regs->uregs[rd] = + insnslot_3arg_rflags(rnv, rmv, rsv, regs->ARM_cpsr, i_fn); +} + +static void __kprobes +emulate_alu_rwflags(struct kprobe *p, struct pt_regs *regs) +{ + insn_3arg_fn_t *i_fn = (insn_3arg_fn_t *)&p->ainsn.insn[0]; + kprobe_opcode_t insn = p->opcode; + long ppc = (long)p->addr + 8; + int rd = (insn >> 12) & 0xf; + int rn = (insn >> 16) & 0xf; /* rn/rnv/rs/rsv may be */ + int rs = (insn >> 8) & 0xf; /* invalid, don't care. */ + int rm = insn & 0xf; + long rnv = (rn == 15) ? ppc : regs->uregs[rn]; + long rmv = (rm == 15) ? ppc : regs->uregs[rm]; + long rsv = regs->uregs[rs]; + + regs->uregs[rd] = + insnslot_3arg_rwflags(rnv, rmv, rsv, ®s->ARM_cpsr, i_fn); +} + +static enum kprobe_insn __kprobes +prep_emulate_ldr_str(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + int ibit = (insn & (1 << 26)) ? 25 : 22; + + insn &= 0xfff00fff; + insn |= 0x00001000; /* Rn = r0, Rd = r1 */ + if (insn & (1 << ibit)) { + insn &= ~0xf; + insn |= 2; /* Rm = r2 */ + } + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? emulate_ldr : emulate_str; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rd12rm0(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + insn &= 0xffff0ff0; /* Rd = r0, Rm = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rd12rm0; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rd12(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + insn &= 0xffff0fff; /* Rd = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rd12; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rd12rn16rm0_wflags(kprobe_opcode_t insn, + struct arch_specific_insn *asi) +{ + insn &= 0xfff00ff0; /* Rd = r0, Rn = r0 */ + insn |= 0x00000001; /* Rm = r1 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rd12rn16rm0_rwflags; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rd16rs8rm0_wflags(kprobe_opcode_t insn, + struct arch_specific_insn *asi) +{ + insn &= 0xfff0f0f0; /* Rd = r0, Rs = r0 */ + insn |= 0x00000001; /* Rm = r1 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rd16rs8rm0_rwflags; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rd16rn12rs8rm0_wflags(kprobe_opcode_t insn, + struct arch_specific_insn *asi) +{ + insn &= 0xfff000f0; /* Rd = r0, Rn = r0 */ + insn |= 0x00000102; /* Rs = r1, Rm = r2 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rd16rn12rs8rm0_rwflags; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +prep_emulate_rdhi16rdlo12rs8rm0_wflags(kprobe_opcode_t insn, + struct arch_specific_insn *asi) +{ + insn &= 0xfff000f0; /* RdHi = r0, RdLo = r1 */ + insn |= 0x00001203; /* Rs = r2, Rm = r3 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rdhi16rdlo12rs8rm0_rwflags; + return INSN_GOOD; +} + +/* + * For the instruction masking and comparisons in all the "space_*" + * functions below, Do _not_ rearrange the order of tests unless + * you're very, very sure of what you are doing. For the sake of + * efficiency, the masks for some tests sometimes assume other test + * have been done prior to them so the number of patterns to test + * for an instruction set can be as broad as possible to reduce the + * number of tests needed. + */ + +static enum kprobe_insn __kprobes +space_1111(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* CPS mmod == 1 : 1111 0001 0000 xx10 xxxx xxxx xx0x xxxx */ + /* RFE : 1111 100x x0x1 xxxx xxxx 1010 xxxx xxxx */ + /* SRS : 1111 100x x1x0 1101 xxxx 0101 xxxx xxxx */ + if ((insn & 0xfff30020) == 0xf1020000 || + (insn & 0xfe500f00) == 0xf8100a00 || + (insn & 0xfe5f0f00) == 0xf84d0500) + return INSN_REJECTED; + + /* PLD : 1111 01x1 x101 xxxx xxxx xxxx xxxx xxxx : */ + if ((insn & 0xfd700000) == 0xf4500000) { + insn &= 0xfff0ffff; /* Rn = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_rn16; + return INSN_GOOD; + } + + /* BLX(1) : 1111 101x xxxx xxxx xxxx xxxx xxxx xxxx : */ + if ((insn & 0xfe000000) == 0xfa000000) { + asi->insn_handler = simulate_blx1; + return INSN_GOOD_NO_SLOT; + } + + /* SETEND : 1111 0001 0000 0001 xxxx xxxx 0000 xxxx */ + /* CDP2 : 1111 1110 xxxx xxxx xxxx xxxx xxx0 xxxx */ + if ((insn & 0xffff00f0) == 0xf1010000 || + (insn & 0xff000010) == 0xfe000000) { + asi->insn[0] = insn; + asi->insn_handler = emulate_none; + return INSN_GOOD; + } + + /* MCRR2 : 1111 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */ + /* MRRC2 : 1111 1100 0101 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */ + if ((insn & 0xffe00000) == 0xfc400000) { + insn &= 0xfff00fff; /* Rn = r0 */ + insn |= 0x00001000; /* Rd = r1 */ + asi->insn[0] = insn; + asi->insn_handler = + (insn & (1 << 20)) ? emulate_mrrc : emulate_mcrr; + return INSN_GOOD; + } + + /* LDC2 : 1111 110x xxx1 xxxx xxxx xxxx xxxx xxxx */ + /* STC2 : 1111 110x xxx0 xxxx xxxx xxxx xxxx xxxx */ + if ((insn & 0xfe000000) == 0xfc000000) { + insn &= 0xfff0ffff; /* Rn = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_ldcstc; + return INSN_GOOD; + } + + /* MCR2 : 1111 1110 xxx0 xxxx xxxx xxxx xxx1 xxxx */ + /* MRC2 : 1111 1110 xxx1 xxxx xxxx xxxx xxx1 xxxx */ + insn &= 0xffff0fff; /* Rd = r0 */ + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? emulate_rd12 : emulate_ird12; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_000x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* cccc 0001 0xx0 xxxx xxxx xxxx xxxx xxx0 xxxx */ + if ((insn & 0x0f900010) == 0x01000000) { + + /* BXJ : cccc 0001 0010 xxxx xxxx xxxx 0010 xxxx */ + /* MSR : cccc 0001 0x10 xxxx xxxx xxxx 0000 xxxx */ + if ((insn & 0x0ff000f0) == 0x01200020 || + (insn & 0x0fb000f0) == 0x01200000) + return INSN_REJECTED; + + /* MRS : cccc 0001 0x00 xxxx xxxx xxxx 0000 xxxx */ + if ((insn & 0x0fb00010) == 0x01000000) + return prep_emulate_rd12(insn, asi); + + /* SMLALxy : cccc 0001 0100 xxxx xxxx xxxx 1xx0 xxxx */ + if ((insn & 0x0ff00090) == 0x01400080) + return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi); + + /* SMULWy : cccc 0001 0010 xxxx xxxx xxxx 1x10 xxxx */ + /* SMULxy : cccc 0001 0110 xxxx xxxx xxxx 1xx0 xxxx */ + if ((insn & 0x0ff000b0) == 0x012000a0 || + (insn & 0x0ff00090) == 0x01600080) + return prep_emulate_rd16rs8rm0_wflags(insn, asi); + + /* SMLAxy : cccc 0001 0000 xxxx xxxx xxxx 1xx0 xxxx : Q */ + /* SMLAWy : cccc 0001 0010 xxxx xxxx xxxx 0x00 xxxx : Q */ + return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); + + } + + /* cccc 0001 0xx0 xxxx xxxx xxxx xxxx 0xx1 xxxx */ + else if ((insn & 0x0f900090) == 0x01000010) { + + /* BKPT : 1110 0001 0010 xxxx xxxx xxxx 0111 xxxx */ + if ((insn & 0xfff000f0) == 0xe1200070) + return INSN_REJECTED; + + /* BLX(2) : cccc 0001 0010 xxxx xxxx xxxx 0011 xxxx */ + /* BX : cccc 0001 0010 xxxx xxxx xxxx 0001 xxxx */ + if ((insn & 0x0ff000d0) == 0x01200010) { + asi->insn[0] = truecc_insn(insn); + asi->insn_handler = simulate_blx2bx; + return INSN_GOOD; + } + + /* CLZ : cccc 0001 0110 xxxx xxxx xxxx 0001 xxxx */ + if ((insn & 0x0ff000f0) == 0x01600010) + return prep_emulate_rd12rm0(insn, asi); + + /* QADD : cccc 0001 0000 xxxx xxxx xxxx 0101 xxxx :Q */ + /* QSUB : cccc 0001 0010 xxxx xxxx xxxx 0101 xxxx :Q */ + /* QDADD : cccc 0001 0100 xxxx xxxx xxxx 0101 xxxx :Q */ + /* QDSUB : cccc 0001 0110 xxxx xxxx xxxx 0101 xxxx :Q */ + return prep_emulate_rd12rn16rm0_wflags(insn, asi); + } + + /* cccc 0000 xxxx xxxx xxxx xxxx xxxx 1001 xxxx */ + else if ((insn & 0x0f000090) == 0x00000090) { + + /* MUL : cccc 0000 0000 xxxx xxxx xxxx 1001 xxxx : */ + /* MULS : cccc 0000 0001 xxxx xxxx xxxx 1001 xxxx :cc */ + /* MLA : cccc 0000 0010 xxxx xxxx xxxx 1001 xxxx : */ + /* MLAS : cccc 0000 0011 xxxx xxxx xxxx 1001 xxxx :cc */ + /* UMAAL : cccc 0000 0100 xxxx xxxx xxxx 1001 xxxx : */ + /* UMULL : cccc 0000 1000 xxxx xxxx xxxx 1001 xxxx : */ + /* UMULLS : cccc 0000 1001 xxxx xxxx xxxx 1001 xxxx :cc */ + /* UMLAL : cccc 0000 1010 xxxx xxxx xxxx 1001 xxxx : */ + /* UMLALS : cccc 0000 1011 xxxx xxxx xxxx 1001 xxxx :cc */ + /* SMULL : cccc 0000 1100 xxxx xxxx xxxx 1001 xxxx : */ + /* SMULLS : cccc 0000 1101 xxxx xxxx xxxx 1001 xxxx :cc */ + /* SMLAL : cccc 0000 1110 xxxx xxxx xxxx 1001 xxxx : */ + /* SMLALS : cccc 0000 1111 xxxx xxxx xxxx 1001 xxxx :cc */ + if ((insn & 0x0fe000f0) == 0x00000090) { + return prep_emulate_rd16rs8rm0_wflags(insn, asi); + } else if ((insn & 0x0fe000f0) == 0x00200090) { + return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); + } else { + return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi); + } + } + + /* cccc 000x xxxx xxxx xxxx xxxx xxxx 1xx1 xxxx */ + else if ((insn & 0x0e000090) == 0x00000090) { + + /* SWP : cccc 0001 0000 xxxx xxxx xxxx 1001 xxxx */ + /* SWPB : cccc 0001 0100 xxxx xxxx xxxx 1001 xxxx */ + /* LDRD : cccc 000x xxx0 xxxx xxxx xxxx 1101 xxxx */ + /* STRD : cccc 000x xxx0 xxxx xxxx xxxx 1111 xxxx */ + /* STREX : cccc 0001 1000 xxxx xxxx xxxx 1001 xxxx */ + /* LDREX : cccc 0001 1001 xxxx xxxx xxxx 1001 xxxx */ + /* LDRH : cccc 000x xxx1 xxxx xxxx xxxx 1011 xxxx */ + /* STRH : cccc 000x xxx0 xxxx xxxx xxxx 1011 xxxx */ + /* LDRSB : cccc 000x xxx1 xxxx xxxx xxxx 1101 xxxx */ + /* LDRSH : cccc 000x xxx1 xxxx xxxx xxxx 1111 xxxx */ + if ((insn & 0x0fb000f0) == 0x01000090) { + /* SWP/SWPB */ + return prep_emulate_rd12rn16rm0_wflags(insn, asi); + } else if ((insn & 0x0e1000d0) == 0x00000d0) { + /* STRD/LDRD */ + insn &= 0xfff00fff; + insn |= 0x00002000; /* Rn = r0, Rd = r2 */ + if (insn & (1 << 22)) { + /* I bit */ + insn &= ~0xf; + insn |= 1; /* Rm = r1 */ + } + asi->insn[0] = insn; + asi->insn_handler = + (insn & (1 << 5)) ? emulate_strd : emulate_ldrd; + return INSN_GOOD; + } + + return prep_emulate_ldr_str(insn, asi); + } + + /* cccc 000x xxxx xxxx xxxx xxxx xxxx xxxx xxxx */ + + /* + * ALU op with S bit and Rd == 15 : + * cccc 000x xxx1 xxxx 1111 xxxx xxxx xxxx + */ + if ((insn & 0x0e10f000) == 0x0010f000) + return INSN_REJECTED; + + /* + * "mov ip, sp" is the most common kprobe'd instruction by far. + * Check and optimize for it explicitly. + */ + if (insn == 0xe1a0c00d) { + asi->insn_handler = simulate_mov_ipsp; + return INSN_GOOD_NO_SLOT; + } + + /* + * Data processing: Immediate-shift / Register-shift + * ALU op : cccc 000x xxxx xxxx xxxx xxxx xxxx xxxx + * CPY : cccc 0001 1010 xxxx xxxx 0000 0000 xxxx + * MOV : cccc 0001 101x xxxx xxxx xxxx xxxx xxxx + * *S (bit 20) updates condition codes + * ADC/SBC/RSC reads the C flag + */ + insn &= 0xfff00ff0; /* Rn = r0, Rd = r0 */ + insn |= 0x00000001; /* Rm = r1 */ + if (insn & 0x010) { + insn &= 0xfffff0ff; /* register shift */ + insn |= 0x00000200; /* Rs = r2 */ + } + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? /* S-bit */ + emulate_alu_rwflags : emulate_alu_rflags; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* + * MSR : cccc 0011 0x10 xxxx xxxx xxxx xxxx xxxx + * Undef : cccc 0011 0x00 xxxx xxxx xxxx xxxx xxxx + * ALU op with S bit and Rd == 15 : + * cccc 001x xxx1 xxxx 1111 xxxx xxxx xxxx + */ + if ((insn & 0x0f900000) == 0x03200000 || /* MSR & Undef */ + (insn & 0x0e10f000) == 0x0210f000) /* ALU s-bit, R15 */ + return INSN_REJECTED; + + /* + * Data processing: 32-bit Immediate + * ALU op : cccc 001x xxxx xxxx xxxx xxxx xxxx xxxx + * MOV : cccc 0011 101x xxxx xxxx xxxx xxxx xxxx + * *S (bit 20) updates condition codes + * ADC/SBC/RSC reads the C flag + */ + insn &= 0xfff00ff0; /* Rn = r0, Rd = r0 */ + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? /* S-bit */ + emulate_alu_imm_rwflags : emulate_alu_imm_rflags; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_0110__1(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* SEL : cccc 0110 1000 xxxx xxxx xxxx 1011 xxxx GE: !!! */ + if ((insn & 0x0ff000f0) == 0x068000b0) { + insn &= 0xfff00ff0; /* Rd = r0, Rn = r0 */ + insn |= 0x00000001; /* Rm = r1 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_sel; + return INSN_GOOD; + } + + /* SSAT : cccc 0110 101x xxxx xxxx xxxx xx01 xxxx :Q */ + /* USAT : cccc 0110 111x xxxx xxxx xxxx xx01 xxxx :Q */ + /* SSAT16 : cccc 0110 1010 xxxx xxxx xxxx 0011 xxxx :Q */ + /* USAT16 : cccc 0110 1110 xxxx xxxx xxxx 0011 xxxx :Q */ + if ((insn & 0x0fa00030) == 0x06a00010 || + (insn & 0x0fb000f0) == 0x06a00030) { + insn &= 0xffff0ff0; /* Rd = r0, Rm = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_sat; + return INSN_GOOD; + } + + /* REV : cccc 0110 1011 xxxx xxxx xxxx 0011 xxxx */ + /* REV16 : cccc 0110 1011 xxxx xxxx xxxx 1011 xxxx */ + /* REVSH : cccc 0110 1111 xxxx xxxx xxxx 1011 xxxx */ + if ((insn & 0x0ff00070) == 0x06b00030 || + (insn & 0x0ff000f0) == 0x06f000b0) + return prep_emulate_rd12rm0(insn, asi); + + /* SADD16 : cccc 0110 0001 xxxx xxxx xxxx 0001 xxxx :GE */ + /* SADDSUBX : cccc 0110 0001 xxxx xxxx xxxx 0011 xxxx :GE */ + /* SSUBADDX : cccc 0110 0001 xxxx xxxx xxxx 0101 xxxx :GE */ + /* SSUB16 : cccc 0110 0001 xxxx xxxx xxxx 0111 xxxx :GE */ + /* SADD8 : cccc 0110 0001 xxxx xxxx xxxx 1001 xxxx :GE */ + /* SSUB8 : cccc 0110 0001 xxxx xxxx xxxx 1111 xxxx :GE */ + /* QADD16 : cccc 0110 0010 xxxx xxxx xxxx 0001 xxxx : */ + /* QADDSUBX : cccc 0110 0010 xxxx xxxx xxxx 0011 xxxx : */ + /* QSUBADDX : cccc 0110 0010 xxxx xxxx xxxx 0101 xxxx : */ + /* QSUB16 : cccc 0110 0010 xxxx xxxx xxxx 0111 xxxx : */ + /* QADD8 : cccc 0110 0010 xxxx xxxx xxxx 1001 xxxx : */ + /* QSUB8 : cccc 0110 0010 xxxx xxxx xxxx 1111 xxxx : */ + /* SHADD16 : cccc 0110 0011 xxxx xxxx xxxx 0001 xxxx : */ + /* SHADDSUBX : cccc 0110 0011 xxxx xxxx xxxx 0011 xxxx : */ + /* SHSUBADDX : cccc 0110 0011 xxxx xxxx xxxx 0101 xxxx : */ + /* SHSUB16 : cccc 0110 0011 xxxx xxxx xxxx 0111 xxxx : */ + /* SHADD8 : cccc 0110 0011 xxxx xxxx xxxx 1001 xxxx : */ + /* SHSUB8 : cccc 0110 0011 xxxx xxxx xxxx 1111 xxxx : */ + /* UADD16 : cccc 0110 0101 xxxx xxxx xxxx 0001 xxxx :GE */ + /* UADDSUBX : cccc 0110 0101 xxxx xxxx xxxx 0011 xxxx :GE */ + /* USUBADDX : cccc 0110 0101 xxxx xxxx xxxx 0101 xxxx :GE */ + /* USUB16 : cccc 0110 0101 xxxx xxxx xxxx 0111 xxxx :GE */ + /* UADD8 : cccc 0110 0101 xxxx xxxx xxxx 1001 xxxx :GE */ + /* USUB8 : cccc 0110 0101 xxxx xxxx xxxx 1111 xxxx :GE */ + /* UQADD16 : cccc 0110 0110 xxxx xxxx xxxx 0001 xxxx : */ + /* UQADDSUBX : cccc 0110 0110 xxxx xxxx xxxx 0011 xxxx : */ + /* UQSUBADDX : cccc 0110 0110 xxxx xxxx xxxx 0101 xxxx : */ + /* UQSUB16 : cccc 0110 0110 xxxx xxxx xxxx 0111 xxxx : */ + /* UQADD8 : cccc 0110 0110 xxxx xxxx xxxx 1001 xxxx : */ + /* UQSUB8 : cccc 0110 0110 xxxx xxxx xxxx 1111 xxxx : */ + /* UHADD16 : cccc 0110 0111 xxxx xxxx xxxx 0001 xxxx : */ + /* UHADDSUBX : cccc 0110 0111 xxxx xxxx xxxx 0011 xxxx : */ + /* UHSUBADDX : cccc 0110 0111 xxxx xxxx xxxx 0101 xxxx : */ + /* UHSUB16 : cccc 0110 0111 xxxx xxxx xxxx 0111 xxxx : */ + /* UHADD8 : cccc 0110 0111 xxxx xxxx xxxx 1001 xxxx : */ + /* UHSUB8 : cccc 0110 0111 xxxx xxxx xxxx 1111 xxxx : */ + /* PKHBT : cccc 0110 1000 xxxx xxxx xxxx x001 xxxx : */ + /* PKHTB : cccc 0110 1000 xxxx xxxx xxxx x101 xxxx : */ + /* SXTAB16 : cccc 0110 1000 xxxx xxxx xxxx 0111 xxxx : */ + /* SXTB : cccc 0110 1010 xxxx xxxx xxxx 0111 xxxx : */ + /* SXTAB : cccc 0110 1010 xxxx xxxx xxxx 0111 xxxx : */ + /* SXTAH : cccc 0110 1011 xxxx xxxx xxxx 0111 xxxx : */ + /* UXTAB16 : cccc 0110 1100 xxxx xxxx xxxx 0111 xxxx : */ + /* UXTAB : cccc 0110 1110 xxxx xxxx xxxx 0111 xxxx : */ + /* UXTAH : cccc 0110 1111 xxxx xxxx xxxx 0111 xxxx : */ + return prep_emulate_rd12rn16rm0_wflags(insn, asi); +} + +static enum kprobe_insn __kprobes +space_cccc_0111__1(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* Undef : cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */ + if ((insn & 0x0ff000f0) == 0x03f000f0) + return INSN_REJECTED; + + /* USADA8 : cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx */ + /* USAD8 : cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx */ + if ((insn & 0x0ff000f0) == 0x07800010) + return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); + + /* SMLALD : cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */ + /* SMLSLD : cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */ + if ((insn & 0x0ff00090) == 0x07400010) + return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi); + + /* SMLAD : cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx :Q */ + /* SMLSD : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx :Q */ + /* SMMLA : cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx : */ + /* SMMLS : cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx : */ + if ((insn & 0x0ff00090) == 0x07000010 || + (insn & 0x0ff000d0) == 0x07500010 || + (insn & 0x0ff000d0) == 0x075000d0) + return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); + + /* SMUSD : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx : */ + /* SMUAD : cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx :Q */ + /* SMMUL : cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx : */ + return prep_emulate_rd16rs8rm0_wflags(insn, asi); +} + +static enum kprobe_insn __kprobes +space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* LDR : cccc 01xx x0x1 xxxx xxxx xxxx xxxx xxxx */ + /* LDRB : cccc 01xx x1x1 xxxx xxxx xxxx xxxx xxxx */ + /* LDRBT : cccc 01x0 x111 xxxx xxxx xxxx xxxx xxxx */ + /* LDRT : cccc 01x0 x011 xxxx xxxx xxxx xxxx xxxx */ + /* STR : cccc 01xx x0x0 xxxx xxxx xxxx xxxx xxxx */ + /* STRB : cccc 01xx x1x0 xxxx xxxx xxxx xxxx xxxx */ + /* STRBT : cccc 01x0 x110 xxxx xxxx xxxx xxxx xxxx */ + /* STRT : cccc 01x0 x010 xxxx xxxx xxxx xxxx xxxx */ + return prep_emulate_ldr_str(insn, asi); +} + +static enum kprobe_insn __kprobes +space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* LDM(2) : cccc 100x x101 xxxx 0xxx xxxx xxxx xxxx */ + /* LDM(3) : cccc 100x x1x1 xxxx 1xxx xxxx xxxx xxxx */ + if ((insn & 0x0e708000) == 0x85000000 || + (insn & 0x0e508000) == 0x85010000) + return INSN_REJECTED; + + /* LDM(1) : cccc 100x x0x1 xxxx xxxx xxxx xxxx xxxx */ + /* STM(1) : cccc 100x x0x0 xxxx xxxx xxxx xxxx xxxx */ + asi->insn[0] = truecc_insn(insn); + asi->insn_handler = ((insn & 0x108000) == 0x008000) ? /* STM & R15 */ + simulate_stm1_pc : simulate_ldm1stm1; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_101x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* B : cccc 1010 xxxx xxxx xxxx xxxx xxxx xxxx */ + /* BL : cccc 1011 xxxx xxxx xxxx xxxx xxxx xxxx */ + asi->insn[0] = truecc_insn(insn); + asi->insn_handler = simulate_bbl; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_1100_010x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* MCRR : cccc 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd!=Rn) */ + /* MRRC : cccc 1100 0101 xxxx xxxx xxxx xxxx xxxx : (Rd!=Rn) */ + insn &= 0xfff00fff; + insn |= 0x00001000; /* Rn = r0, Rd = r1 */ + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? emulate_mrrc : emulate_mcrr; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_110x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* LDC : cccc 110x xxx1 xxxx xxxx xxxx xxxx xxxx */ + /* STC : cccc 110x xxx0 xxxx xxxx xxxx xxxx xxxx */ + insn &= 0xfff0ffff; /* Rn = r0 */ + asi->insn[0] = insn; + asi->insn_handler = emulate_ldcstc; + return INSN_GOOD; +} + +static enum kprobe_insn __kprobes +space_cccc_111x(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + /* BKPT : 1110 0001 0010 xxxx xxxx xxxx 0111 xxxx */ + /* SWI : cccc 1111 xxxx xxxx xxxx xxxx xxxx xxxx */ + if ((insn & 0xfff000f0) == 0xe1200070 || + (insn & 0x0f000000) == 0x0f000000) + return INSN_REJECTED; + + /* CDP : cccc 1110 xxxx xxxx xxxx xxxx xxx0 xxxx */ + if ((insn & 0x0f000010) == 0x0e000000) { + asi->insn[0] = insn; + asi->insn_handler = emulate_none; + return INSN_GOOD; + } + + /* MCR : cccc 1110 xxx0 xxxx xxxx xxxx xxx1 xxxx */ + /* MRC : cccc 1110 xxx1 xxxx xxxx xxxx xxx1 xxxx */ + insn &= 0xffff0fff; /* Rd = r0 */ + asi->insn[0] = insn; + asi->insn_handler = (insn & (1 << 20)) ? emulate_rd12 : emulate_ird12; + return INSN_GOOD; +} + +/* Return: + * INSN_REJECTED If instruction is one not allowed to kprobe, + * INSN_GOOD If instruction is supported and uses instruction slot, + * INSN_GOOD_NO_SLOT If instruction is supported but doesn't use its slot. + * + * For instructions we don't want to kprobe (INSN_REJECTED return result): + * These are generally ones that modify the processor state making + * them "hard" to simulate such as switches processor modes or + * make accesses in alternate modes. Any of these could be simulated + * if the work was put into it, but low return considering they + * should also be very rare. + */ +enum kprobe_insn __kprobes +arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi) +{ + asi->insn[1] = KPROBE_RETURN_INSTRUCTION; + + if ((insn & 0xf0000000) == 0xf0000000) { + + return space_1111(insn, asi); + + } else if ((insn & 0x0e000000) == 0x00000000) { + + return space_cccc_000x(insn, asi); + + } else if ((insn & 0x0e000000) == 0x02000000) { + + return space_cccc_001x(insn, asi); + + } else if ((insn & 0x0f000010) == 0x06000010) { + + return space_cccc_0110__1(insn, asi); + + } else if ((insn & 0x0f000010) == 0x07000010) { + + return space_cccc_0111__1(insn, asi); + + } else if ((insn & 0x0c000000) == 0x04000000) { + + return space_cccc_01xx(insn, asi); + + } else if ((insn & 0x0e000000) == 0x08000000) { + + return space_cccc_100x(insn, asi); + + } else if ((insn & 0x0e000000) == 0x0a000000) { + + return space_cccc_101x(insn, asi); + + } else if ((insn & 0x0fe00000) == 0x0c400000) { + + return space_cccc_1100_010x(insn, asi); + + } else if ((insn & 0x0e000000) == 0x0c400000) { + + return space_cccc_110x(insn, asi); + + } + + return space_cccc_111x(insn, asi); +} + +void __init arm_kprobe_decode_init(void) +{ + find_str_pc_offset(); +} + + +/* + * All ARM instructions listed below. + * + * Instructions and their general purpose registers are given. + * If a particular register may not use R15, it is prefixed with a "!". + * If marked with a "*" means the value returned by reading R15 + * is implementation defined. + * + * ADC/ADD/AND/BIC/CMN/CMP/EOR/MOV/MVN/ORR/RSB/RSC/SBC/SUB/TEQ + * TST: Rd, Rn, Rm, !Rs + * BX: Rm + * BLX(2): !Rm + * BX: Rm (R15 legal, but discouraged) + * BXJ: !Rm, + * CLZ: !Rd, !Rm + * CPY: Rd, Rm + * LDC/2,STC/2 immediate offset & unindex: Rn + * LDC/2,STC/2 immediate pre/post-indexed: !Rn + * LDM(1/3): !Rn, register_list + * LDM(2): !Rn, !register_list + * LDR,STR,PLD immediate offset: Rd, Rn + * LDR,STR,PLD register offset: Rd, Rn, !Rm + * LDR,STR,PLD scaled register offset: Rd, !Rn, !Rm + * LDR,STR immediate pre/post-indexed: Rd, !Rn + * LDR,STR register pre/post-indexed: Rd, !Rn, !Rm + * LDR,STR scaled register pre/post-indexed: Rd, !Rn, !Rm + * LDRB,STRB immediate offset: !Rd, Rn + * LDRB,STRB register offset: !Rd, Rn, !Rm + * LDRB,STRB scaled register offset: !Rd, !Rn, !Rm + * LDRB,STRB immediate pre/post-indexed: !Rd, !Rn + * LDRB,STRB register pre/post-indexed: !Rd, !Rn, !Rm + * LDRB,STRB scaled register pre/post-indexed: !Rd, !Rn, !Rm + * LDRT,LDRBT,STRBT immediate pre/post-indexed: !Rd, !Rn + * LDRT,LDRBT,STRBT register pre/post-indexed: !Rd, !Rn, !Rm + * LDRT,LDRBT,STRBT scaled register pre/post-indexed: !Rd, !Rn, !Rm + * LDRH/SH/SB/D,STRH/SH/SB/D immediate offset: !Rd, Rn + * LDRH/SH/SB/D,STRH/SH/SB/D register offset: !Rd, Rn, !Rm + * LDRH/SH/SB/D,STRH/SH/SB/D immediate pre/post-indexed: !Rd, !Rn + * LDRH/SH/SB/D,STRH/SH/SB/D register pre/post-indexed: !Rd, !Rn, !Rm + * LDREX: !Rd, !Rn + * MCR/2: !Rd + * MCRR/2,MRRC/2: !Rd, !Rn + * MLA: !Rd, !Rn, !Rm, !Rs + * MOV: Rd + * MRC/2: !Rd (if Rd==15, only changes cond codes, not the register) + * MRS,MSR: !Rd + * MUL: !Rd, !Rm, !Rs + * PKH{BT,TB}: !Rd, !Rn, !Rm + * QDADD,[U]QADD/16/8/SUBX: !Rd, !Rm, !Rn + * QDSUB,[U]QSUB/16/8/ADDX: !Rd, !Rm, !Rn + * REV/16/SH: !Rd, !Rm + * RFE: !Rn + * {S,U}[H]ADD{16,8,SUBX},{S,U}[H]SUB{16,8,ADDX}: !Rd, !Rn, !Rm + * SEL: !Rd, !Rn, !Rm + * SMLA<x><y>,SMLA{D,W<y>},SMLSD,SMML{A,S}: !Rd, !Rn, !Rm, !Rs + * SMLAL<x><y>,SMLA{D,LD},SMLSLD,SMMULL,SMULW<y>: !RdHi, !RdLo, !Rm, !Rs + * SMMUL,SMUAD,SMUL<x><y>,SMUSD: !Rd, !Rm, !Rs + * SSAT/16: !Rd, !Rm + * STM(1/2): !Rn, register_list* (R15 in reg list not recommended) + * STRT immediate pre/post-indexed: Rd*, !Rn + * STRT register pre/post-indexed: Rd*, !Rn, !Rm + * STRT scaled register pre/post-indexed: Rd*, !Rn, !Rm + * STREX: !Rd, !Rn, !Rm + * SWP/B: !Rd, !Rn, !Rm + * {S,U}XTA{B,B16,H}: !Rd, !Rn, !Rm + * {S,U}XT{B,B16,H}: !Rd, !Rm + * UM{AA,LA,UL}L: !RdHi, !RdLo, !Rm, !Rs + * USA{D8,A8,T,T16}: !Rd, !Rm, !Rs + * + * May transfer control by writing R15 (possible mode changes or alternate + * mode accesses marked by "*"): + * ALU op (* with s-bit), B, BL, BKPT, BLX(1/2), BX, BXJ, CPS*, CPY, + * LDM(1), LDM(2/3)*, LDR, MOV, RFE*, SWI* + * + * Instructions that do not take general registers, nor transfer control: + * CDP/2, SETEND, SRS* + */ diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c new file mode 100644 index 00000000000..a22a98c43ca --- /dev/null +++ b/arch/arm/kernel/kprobes.c @@ -0,0 +1,447 @@ +/* + * arch/arm/kernel/kprobes.c + * + * Kprobes on ARM + * + * Abhishek Sagar <sagar.abhishek@gmail.com> + * Copyright (C) 2006, 2007 Motorola Inc. + * + * Nicolas Pitre <nico@marvell.com> + * Copyright (C) 2007 Marvell Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/kprobes.h> +#include <linux/module.h> +#include <linux/stringify.h> +#include <asm/traps.h> +#include <asm/cacheflush.h> + +#define MIN_STACK_SIZE(addr) \ + min((unsigned long)MAX_STACK_SIZE, \ + (unsigned long)current_thread_info() + THREAD_START_SP - (addr)) + +#define flush_insns(addr, cnt) \ + flush_icache_range((unsigned long)(addr), \ + (unsigned long)(addr) + \ + sizeof(kprobe_opcode_t) * (cnt)) + +/* Used as a marker in ARM_pc to note when we're in a jprobe. */ +#define JPROBE_MAGIC_ADDR 0xffffffff + +DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; +DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); + + +int __kprobes arch_prepare_kprobe(struct kprobe *p) +{ + kprobe_opcode_t insn; + kprobe_opcode_t tmp_insn[MAX_INSN_SIZE]; + unsigned long addr = (unsigned long)p->addr; + int is; + + if (addr & 0x3 || in_exception_text(addr)) + return -EINVAL; + + insn = *p->addr; + p->opcode = insn; + p->ainsn.insn = tmp_insn; + + switch (arm_kprobe_decode_insn(insn, &p->ainsn)) { + case INSN_REJECTED: /* not supported */ + return -EINVAL; + + case INSN_GOOD: /* instruction uses slot */ + p->ainsn.insn = get_insn_slot(); + if (!p->ainsn.insn) + return -ENOMEM; + for (is = 0; is < MAX_INSN_SIZE; ++is) + p->ainsn.insn[is] = tmp_insn[is]; + flush_insns(&p->ainsn.insn, MAX_INSN_SIZE); + break; + + case INSN_GOOD_NO_SLOT: /* instruction doesn't need insn slot */ + p->ainsn.insn = NULL; + break; + } + + return 0; +} + +void __kprobes arch_arm_kprobe(struct kprobe *p) +{ + *p->addr = KPROBE_BREAKPOINT_INSTRUCTION; + flush_insns(p->addr, 1); +} + +void __kprobes arch_disarm_kprobe(struct kprobe *p) +{ + *p->addr = p->opcode; + flush_insns(p->addr, 1); +} + +void __kprobes arch_remove_kprobe(struct kprobe *p) +{ + if (p->ainsn.insn) { + mutex_lock(&kprobe_mutex); + free_insn_slot(p->ainsn.insn, 0); + mutex_unlock(&kprobe_mutex); + p->ainsn.insn = NULL; + } +} + +static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) +{ + kcb->prev_kprobe.kp = kprobe_running(); + kcb->prev_kprobe.status = kcb->kprobe_status; +} + +static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) +{ + __get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp; + kcb->kprobe_status = kcb->prev_kprobe.status; +} + +static void __kprobes set_current_kprobe(struct kprobe *p) +{ + __get_cpu_var(current_kprobe) = p; +} + +static void __kprobes singlestep(struct kprobe *p, struct pt_regs *regs, + struct kprobe_ctlblk *kcb) +{ + regs->ARM_pc += 4; + p->ainsn.insn_handler(p, regs); +} + +/* + * Called with IRQs disabled. IRQs must remain disabled from that point + * all the way until processing this kprobe is complete. The current + * kprobes implementation cannot process more than one nested level of + * kprobe, and that level is reserved for user kprobe handlers, so we can't + * risk encountering a new kprobe in an interrupt handler. + */ +void __kprobes kprobe_handler(struct pt_regs *regs) +{ + struct kprobe *p, *cur; + struct kprobe_ctlblk *kcb; + kprobe_opcode_t *addr = (kprobe_opcode_t *)regs->ARM_pc; + + kcb = get_kprobe_ctlblk(); + cur = kprobe_running(); + p = get_kprobe(addr); + + if (p) { + if (cur) { + /* Kprobe is pending, so we're recursing. */ + switch (kcb->kprobe_status) { + case KPROBE_HIT_ACTIVE: + case KPROBE_HIT_SSDONE: + /* A pre- or post-handler probe got us here. */ + kprobes_inc_nmissed_count(p); + save_previous_kprobe(kcb); + set_current_kprobe(p); + kcb->kprobe_status = KPROBE_REENTER; + singlestep(p, regs, kcb); + restore_previous_kprobe(kcb); + break; + default: + /* impossible cases */ + BUG(); + } + } else { + set_current_kprobe(p); + kcb->kprobe_status = KPROBE_HIT_ACTIVE; + + /* + * If we have no pre-handler or it returned 0, we + * continue with normal processing. If we have a + * pre-handler and it returned non-zero, it prepped + * for calling the break_handler below on re-entry, + * so get out doing nothing more here. + */ + if (!p->pre_handler || !p->pre_handler(p, regs)) { + kcb->kprobe_status = KPROBE_HIT_SS; + singlestep(p, regs, kcb); + if (p->post_handler) { + kcb->kprobe_status = KPROBE_HIT_SSDONE; + p->post_handler(p, regs, 0); + } + reset_current_kprobe(); + } + } + } else if (cur) { + /* We probably hit a jprobe. Call its break handler. */ + if (cur->break_handler && cur->break_handler(cur, regs)) { + kcb->kprobe_status = KPROBE_HIT_SS; + singlestep(cur, regs, kcb); + if (cur->post_handler) { + kcb->kprobe_status = KPROBE_HIT_SSDONE; + cur->post_handler(cur, regs, 0); + } + } + reset_current_kprobe(); + } else { + /* + * The probe was removed and a race is in progress. + * There is nothing we can do about it. Let's restart + * the instruction. By the time we can restart, the + * real instruction will be there. + */ + } +} + +int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr) +{ + kprobe_handler(regs); + return 0; +} + +int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr) +{ + struct kprobe *cur = kprobe_running(); + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + + switch (kcb->kprobe_status) { + case KPROBE_HIT_SS: + case KPROBE_REENTER: + /* + * We are here because the instruction being single + * stepped caused a page fault. We reset the current + * kprobe and the PC to point back to the probe address + * and allow the page fault handler to continue as a + * normal page fault. + */ + regs->ARM_pc = (long)cur->addr; + if (kcb->kprobe_status == KPROBE_REENTER) { + restore_previous_kprobe(kcb); + } else { + reset_current_kprobe(); + } + break; + + case KPROBE_HIT_ACTIVE: + case KPROBE_HIT_SSDONE: + /* + * We increment the nmissed count for accounting, + * we can also use npre/npostfault count for accounting + * these specific fault cases. + */ + kprobes_inc_nmissed_count(cur); + + /* + * We come here because instructions in the pre/post + * handler caused the page_fault, this could happen + * if handler tries to access user space by + * copy_from_user(), get_user() etc. Let the + * user-specified handler try to fix it. + */ + if (cur->fault_handler && cur->fault_handler(cur, regs, fsr)) + return 1; + break; + + default: + break; + } + + return 0; +} + +int __kprobes kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) +{ + /* + * notify_die() is currently never called on ARM, + * so this callback is currently empty. + */ + return NOTIFY_DONE; +} + +/* + * When a retprobed function returns, trampoline_handler() is called, + * calling the kretprobe's handler. We construct a struct pt_regs to + * give a view of registers r0-r11 to the user return-handler. This is + * not a complete pt_regs structure, but that should be plenty sufficient + * for kretprobe handlers which should normally be interested in r0 only + * anyway. + */ +static void __attribute__((naked)) __kprobes kretprobe_trampoline(void) +{ + __asm__ __volatile__ ( + "stmdb sp!, {r0 - r11} \n\t" + "mov r0, sp \n\t" + "bl trampoline_handler \n\t" + "mov lr, r0 \n\t" + "ldmia sp!, {r0 - r11} \n\t" + "mov pc, lr \n\t" + : : : "memory"); +} + +/* Called from kretprobe_trampoline */ +static __used __kprobes void *trampoline_handler(struct pt_regs *regs) +{ + struct kretprobe_instance *ri = NULL; + struct hlist_head *head, empty_rp; + struct hlist_node *node, *tmp; + unsigned long flags, orig_ret_address = 0; + unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline; + + INIT_HLIST_HEAD(&empty_rp); + spin_lock_irqsave(&kretprobe_lock, flags); + head = kretprobe_inst_table_head(current); + + /* + * It is possible to have multiple instances associated with a given + * task either because multiple functions in the call path have + * a return probe installed on them, and/or more than one return + * probe was registered for a target function. + * + * We can handle this because: + * - instances are always inserted at the head of the list + * - when multiple return probes are registered for the same + * function, the first instance's ret_addr will point to the + * real return address, and all the rest will point to + * kretprobe_trampoline + */ + hlist_for_each_entry_safe(ri, node, tmp, head, hlist) { + if (ri->task != current) + /* another task is sharing our hash bucket */ + continue; + + if (ri->rp && ri->rp->handler) { + __get_cpu_var(current_kprobe) = &ri->rp->kp; + get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE; + ri->rp->handler(ri, regs); + __get_cpu_var(current_kprobe) = NULL; + } + + orig_ret_address = (unsigned long)ri->ret_addr; + recycle_rp_inst(ri, &empty_rp); + + if (orig_ret_address != trampoline_address) + /* + * This is the real return address. Any other + * instances associated with this task are for + * other calls deeper on the call stack + */ + break; + } + + kretprobe_assert(ri, orig_ret_address, trampoline_address); + spin_unlock_irqrestore(&kretprobe_lock, flags); + + hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) { + hlist_del(&ri->hlist); + kfree(ri); + } + + return (void *)orig_ret_address; +} + +/* Called with kretprobe_lock held. */ +void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, + struct pt_regs *regs) +{ + ri->ret_addr = (kprobe_opcode_t *)regs->ARM_lr; + + /* Replace the return addr with trampoline addr. */ + regs->ARM_lr = (unsigned long)&kretprobe_trampoline; +} + +int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) +{ + struct jprobe *jp = container_of(p, struct jprobe, kp); + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + long sp_addr = regs->ARM_sp; + + kcb->jprobe_saved_regs = *regs; + memcpy(kcb->jprobes_stack, (void *)sp_addr, MIN_STACK_SIZE(sp_addr)); + regs->ARM_pc = (long)jp->entry; + regs->ARM_cpsr |= PSR_I_BIT; + preempt_disable(); + return 1; +} + +void __kprobes jprobe_return(void) +{ + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + + __asm__ __volatile__ ( + /* + * Setup an empty pt_regs. Fill SP and PC fields as + * they're needed by longjmp_break_handler. + */ + "sub sp, %0, %1 \n\t" + "ldr r0, ="__stringify(JPROBE_MAGIC_ADDR)"\n\t" + "str %0, [sp, %2] \n\t" + "str r0, [sp, %3] \n\t" + "mov r0, sp \n\t" + "bl kprobe_handler \n\t" + + /* + * Return to the context saved by setjmp_pre_handler + * and restored by longjmp_break_handler. + */ + "ldr r0, [sp, %4] \n\t" + "msr cpsr_cxsf, r0 \n\t" + "ldmia sp, {r0 - pc} \n\t" + : + : "r" (kcb->jprobe_saved_regs.ARM_sp), + "I" (sizeof(struct pt_regs)), + "J" (offsetof(struct pt_regs, ARM_sp)), + "J" (offsetof(struct pt_regs, ARM_pc)), + "J" (offsetof(struct pt_regs, ARM_cpsr)) + : "memory", "cc"); +} + +int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) +{ + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + long stack_addr = kcb->jprobe_saved_regs.ARM_sp; + long orig_sp = regs->ARM_sp; + struct jprobe *jp = container_of(p, struct jprobe, kp); + + if (regs->ARM_pc == JPROBE_MAGIC_ADDR) { + if (orig_sp != stack_addr) { + struct pt_regs *saved_regs = + (struct pt_regs *)kcb->jprobe_saved_regs.ARM_sp; + printk("current sp %lx does not match saved sp %lx\n", + orig_sp, stack_addr); + printk("Saved registers for jprobe %p\n", jp); + show_regs(saved_regs); + printk("Current registers\n"); + show_regs(regs); + BUG(); + } + *regs = kcb->jprobe_saved_regs; + memcpy((void *)stack_addr, kcb->jprobes_stack, + MIN_STACK_SIZE(stack_addr)); + preempt_enable_no_resched(); + return 1; + } + return 0; +} + +static struct undef_hook kprobes_break_hook = { + .instr_mask = 0xffffffff, + .instr_val = KPROBE_BREAKPOINT_INSTRUCTION, + .cpsr_mask = MODE_MASK, + .cpsr_val = SVC_MODE, + .fn = kprobe_trap_handler, +}; + +int __init arch_init_kprobes() +{ + arm_kprobe_decode_init(); + register_undef_hook(&kprobes_break_hook); + return 0; +} diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index e59b5b84168..b5867eca1d0 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -325,7 +325,9 @@ void timer_tick(void) profile_tick(CPU_PROFILING); do_leds(); do_set_rtc(); + write_seqlock(&xtime_lock); do_timer(1); + write_sequnlock(&xtime_lock); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); #endif diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index c34db4e868f..5595fdd75e8 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -19,6 +19,7 @@ #include <linux/kallsyms.h> #include <linux/delay.h> #include <linux/init.h> +#include <linux/kprobes.h> #include <asm/atomic.h> #include <asm/cacheflush.h> @@ -46,15 +47,6 @@ __setup("user_debug=", user_debug_setup); static void dump_mem(const char *str, unsigned long bottom, unsigned long top); -static inline int in_exception_text(unsigned long ptr) -{ - extern char __exception_text_start[]; - extern char __exception_text_end[]; - - return ptr >= (unsigned long)&__exception_text_start && - ptr < (unsigned long)&__exception_text_end; -} - void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame) { #ifdef CONFIG_KALLSYMS @@ -322,6 +314,17 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) get_user(instr, (u32 __user *)pc); } +#ifdef CONFIG_KPROBES + /* + * It is possible to have recursive kprobes, so we can't call + * the kprobe trap handler with the undef_lock held. + */ + if (instr == KPROBE_BREAKPOINT_INSTRUCTION && !user_mode(regs)) { + kprobe_trap_handler(regs, instr); + return; + } +#endif + spin_lock_irqsave(&undef_lock, flags); list_for_each_entry(hook, &undef_hook, node) { if ((instr & hook->instr_mask) == hook->instr_val && diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 5ff5406666b..30f732c7fdb 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -94,6 +94,7 @@ SECTIONS TEXT_TEXT SCHED_TEXT LOCK_TEXT + KPROBES_TEXT #ifdef CONFIG_MMU *(.fixup) #endif diff --git a/arch/arm/mach-aaec2000/core.c b/arch/arm/mach-aaec2000/core.c index 0446ef2f5bd..b016be2b0e3 100644 --- a/arch/arm/mach-aaec2000/core.c +++ b/arch/arm/mach-aaec2000/core.c @@ -130,13 +130,9 @@ static irqreturn_t aaec2000_timer_interrupt(int irq, void *dev_id) { /* TODO: Check timer accuracy */ - write_seqlock(&xtime_lock); - timer_tick(); TIMER1_CLEAR = 1; - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 05a9f8a1b45..5b0422cdde7 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -22,6 +22,9 @@ config ARCH_AT91SAM9263 config ARCH_AT91SAM9RL bool "AT91SAM9RL" +config ARCH_AT91CAP9 + bool "AT91CAP9" + config ARCH_AT91X40 bool "AT91x40" @@ -178,6 +181,21 @@ endif # ---------------------------------------------------------- +if ARCH_AT91CAP9 + +comment "AT91CAP9 Board Type" + +config MACH_AT91CAP9ADK + bool "Atmel AT91CAP9A-DK Evaluation Kit" + depends on ARCH_AT91CAP9 + help + Select this if you are using Atmel's AT91CAP9A-DK Evaluation Kit. + <http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4138> + +endif + +# ---------------------------------------------------------- + if ARCH_AT91X40 comment "AT91X40 Board Type" @@ -198,13 +216,13 @@ comment "AT91 Board Options" config MTD_AT91_DATAFLASH_CARD bool "Enable DataFlash Card support" - depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK) + depends on (ARCH_AT91RM9200DK || MACH_AT91RM9200EK || MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK) help Enable support for the DataFlash card. config MTD_NAND_AT91_BUSWIDTH_16 bool "Enable 16-bit data bus interface to NAND flash" - depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK) + depends on (MACH_AT91SAM9260EK || MACH_AT91SAM9261EK || MACH_AT91SAM9263EK || MACH_AT91CAP9ADK) help On AT91SAM926x boards both types of NAND flash can be present (8 and 16 bit data bus width). @@ -219,6 +237,22 @@ config AT91_PROGRAMMABLE_CLOCKS Select this if you need to program one or more of the PCK0..PCK3 programmable clock outputs. +config AT91_TIMER_HZ + int "Kernel HZ (jiffies per second)" + range 32 1024 + depends on ARCH_AT91 + default "128" if ARCH_AT91RM9200 + default "100" + help + On AT91rm9200 chips where you're using a system clock derived + from the 32768 Hz hardware clock, this tick rate should divide + it exactly: use a power-of-two value, such as 128 or 256, to + reduce timing errors caused by rounding. + + On AT91sam926x chips, or otherwise when using a higher precision + system clock (of at least several MHz), rounding is less of a + problem so it can be safer to use a decimal values like 100. + endmenu endif diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index a21f08c64ea..bf5f293dccf 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -8,7 +8,6 @@ obj-n := obj- := obj-$(CONFIG_AT91_PMC_UNIT) += clock.o -obj-$(CONFIG_PM) += pm.o # CPU-specific support obj-$(CONFIG_ARCH_AT91RM9200) += at91rm9200.o at91rm9200_time.o at91rm9200_devices.o @@ -16,6 +15,7 @@ obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260.o at91sam926x_time.o at91sam9260_d obj-$(CONFIG_ARCH_AT91SAM9261) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_devices.o obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o +obj-$(CONFIG_ARCH_AT91CAP9) += at91cap9.o at91sam926x_time.o at91cap9_devices.o obj-$(CONFIG_ARCH_AT91X40) += at91x40.o at91x40_time.o # AT91RM9200 board-specific support @@ -29,7 +29,6 @@ obj-$(CONFIG_MACH_KB9200) += board-kb9202.o obj-$(CONFIG_MACH_ATEB9200) += board-eb9200.o obj-$(CONFIG_MACH_KAFA) += board-kafa.o obj-$(CONFIG_MACH_PICOTUX2XX) += board-picotux200.o -obj-$(CONFIG_MACH_AT91EB01) += board-eb01.o # AT91SAM9260 board-specific support obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o @@ -43,19 +42,17 @@ obj-$(CONFIG_MACH_AT91SAM9263EK) += board-sam9263ek.o # AT91SAM9RL board-specific support obj-$(CONFIG_MACH_AT91SAM9RLEK) += board-sam9rlek.o -# LEDs support -led-$(CONFIG_ARCH_AT91RM9200DK) += leds.o -led-$(CONFIG_MACH_AT91RM9200EK) += leds.o -led-$(CONFIG_MACH_AT91SAM9261EK)+= leds.o -led-$(CONFIG_MACH_CSB337) += leds.o -led-$(CONFIG_MACH_CSB637) += leds.o -led-$(CONFIG_MACH_KB9200) += leds.o -led-$(CONFIG_MACH_KAFA) += leds.o -obj-$(CONFIG_LEDS) += $(led-y) +# AT91CAP9 board-specific support +obj-$(CONFIG_MACH_AT91CAP9ADK) += board-cap9adk.o -# VGA support -#obj-$(CONFIG_FB_S1D13XXX) += ics1523.o +# AT91X40 board-specific support +obj-$(CONFIG_MACH_AT91EB01) += board-eb01.o +# Drivers +obj-y += leds.o + +# Power Management +obj-$(CONFIG_PM) += pm.o ifeq ($(CONFIG_PM_DEBUG),y) CFLAGS_pm.o += -DDEBUG diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot index e667dcc7cd3..071a2506a69 100644 --- a/arch/arm/mach-at91/Makefile.boot +++ b/arch/arm/mach-at91/Makefile.boot @@ -3,7 +3,12 @@ # PARAMS_PHYS must be within 4MB of ZRELADDR # INITRD_PHYS must be in RAM +ifeq ($(CONFIG_ARCH_AT91CAP9),y) + zreladdr-y := 0x70008000 +params_phys-y := 0x70000100 +initrd_phys-y := 0x70410000 +else zreladdr-y := 0x20008000 params_phys-y := 0x20000100 initrd_phys-y := 0x20410000 - +endif diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c new file mode 100644 index 00000000000..48d27d8000b --- /dev/null +++ b/arch/arm/mach-at91/at91cap9.c @@ -0,0 +1,365 @@ +/* + * arch/arm/mach-at91/at91cap9.c + * + * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> + * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> + * Copyright (C) 2007 Atmel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/module.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/arch/at91cap9.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> + +#include "generic.h" +#include "clock.h" + +static struct map_desc at91cap9_io_desc[] __initdata = { + { + .virtual = AT91_VA_BASE_SYS, + .pfn = __phys_to_pfn(AT91_BASE_SYS), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE, + .pfn = __phys_to_pfn(AT91CAP9_SRAM_BASE), + .length = AT91CAP9_SRAM_SIZE, + .type = MT_DEVICE, + }, +}; + +/* -------------------------------------------------------------------- + * Clocks + * -------------------------------------------------------------------- */ + +/* + * The peripheral clocks. + */ +static struct clk pioABCD_clk = { + .name = "pioABCD_clk", + .pmc_mask = 1 << AT91CAP9_ID_PIOABCD, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mpb0_clk = { + .name = "mpb0_clk", + .pmc_mask = 1 << AT91CAP9_ID_MPB0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mpb1_clk = { + .name = "mpb1_clk", + .pmc_mask = 1 << AT91CAP9_ID_MPB1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mpb2_clk = { + .name = "mpb2_clk", + .pmc_mask = 1 << AT91CAP9_ID_MPB2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mpb3_clk = { + .name = "mpb3_clk", + .pmc_mask = 1 << AT91CAP9_ID_MPB3, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mpb4_clk = { + .name = "mpb4_clk", + .pmc_mask = 1 << AT91CAP9_ID_MPB4, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart0_clk = { + .name = "usart0_clk", + .pmc_mask = 1 << AT91CAP9_ID_US0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart1_clk = { + .name = "usart1_clk", + .pmc_mask = 1 << AT91CAP9_ID_US1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart2_clk = { + .name = "usart2_clk", + .pmc_mask = 1 << AT91CAP9_ID_US2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc0_clk = { + .name = "mci0_clk", + .pmc_mask = 1 << AT91CAP9_ID_MCI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc1_clk = { + .name = "mci1_clk", + .pmc_mask = 1 << AT91CAP9_ID_MCI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk can_clk = { + .name = "can_clk", + .pmc_mask = 1 << AT91CAP9_ID_CAN, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi_clk = { + .name = "twi_clk", + .pmc_mask = 1 << AT91CAP9_ID_TWI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi0_clk = { + .name = "spi0_clk", + .pmc_mask = 1 << AT91CAP9_ID_SPI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi1_clk = { + .name = "spi1_clk", + .pmc_mask = 1 << AT91CAP9_ID_SPI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pmc_mask = 1 << AT91CAP9_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pmc_mask = 1 << AT91CAP9_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ac97_clk = { + .name = "ac97_clk", + .pmc_mask = 1 << AT91CAP9_ID_AC97C, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tcb_clk = { + .name = "tcb_clk", + .pmc_mask = 1 << AT91CAP9_ID_TCB, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pwmc_clk = { + .name = "pwmc_clk", + .pmc_mask = 1 << AT91CAP9_ID_PWMC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk macb_clk = { + .name = "macb_clk", + .pmc_mask = 1 << AT91CAP9_ID_EMAC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk aestdes_clk = { + .name = "aestdes_clk", + .pmc_mask = 1 << AT91CAP9_ID_AESTDES, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk adc_clk = { + .name = "adc_clk", + .pmc_mask = 1 << AT91CAP9_ID_ADC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk isi_clk = { + .name = "isi_clk", + .pmc_mask = 1 << AT91CAP9_ID_ISI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk lcdc_clk = { + .name = "lcdc_clk", + .pmc_mask = 1 << AT91CAP9_ID_LCDC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk dma_clk = { + .name = "dma_clk", + .pmc_mask = 1 << AT91CAP9_ID_DMA, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk udphs_clk = { + .name = "udphs_clk", + .pmc_mask = 1 << AT91CAP9_ID_UDPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ohci_clk = { + .name = "ohci_clk", + .pmc_mask = 1 << AT91CAP9_ID_UHP, + .type = CLK_TYPE_PERIPHERAL, +}; + +static struct clk *periph_clocks[] __initdata = { + &pioABCD_clk, + &mpb0_clk, + &mpb1_clk, + &mpb2_clk, + &mpb3_clk, + &mpb4_clk, + &usart0_clk, + &usart1_clk, + &usart2_clk, + &mmc0_clk, + &mmc1_clk, + &can_clk, + &twi_clk, + &spi0_clk, + &spi1_clk, + &ssc0_clk, + &ssc1_clk, + &ac97_clk, + &tcb_clk, + &pwmc_clk, + &macb_clk, + &aestdes_clk, + &adc_clk, + &isi_clk, + &lcdc_clk, + &dma_clk, + &udphs_clk, + &ohci_clk, + // irq0 .. irq1 +}; + +/* + * The four programmable clocks. + * You must configure pin multiplexing to bring these signals out. + */ +static struct clk pck0 = { + .name = "pck0", + .pmc_mask = AT91_PMC_PCK0, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 0, +}; +static struct clk pck1 = { + .name = "pck1", + .pmc_mask = AT91_PMC_PCK1, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 1, +}; +static struct clk pck2 = { + .name = "pck2", + .pmc_mask = AT91_PMC_PCK2, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 2, +}; +static struct clk pck3 = { + .name = "pck3", + .pmc_mask = AT91_PMC_PCK3, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 3, +}; + +static void __init at91cap9_register_clocks(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) + clk_register(periph_clocks[i]); + + clk_register(&pck0); + clk_register(&pck1); + clk_register(&pck2); + clk_register(&pck3); +} + +/* -------------------------------------------------------------------- + * GPIO + * -------------------------------------------------------------------- */ + +static struct at91_gpio_bank at91cap9_gpio[] = { + { + .id = AT91CAP9_ID_PIOABCD, + .offset = AT91_PIOA, + .clock = &pioABCD_clk, + }, { + .id = AT91CAP9_ID_PIOABCD, + .offset = AT91_PIOB, + .clock = &pioABCD_clk, + }, { + .id = AT91CAP9_ID_PIOABCD, + .offset = AT91_PIOC, + .clock = &pioABCD_clk, + }, { + .id = AT91CAP9_ID_PIOABCD, + .offset = AT91_PIOD, + .clock = &pioABCD_clk, + } +}; + +static void at91cap9_reset(void) +{ + at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST); +} + +/* -------------------------------------------------------------------- + * AT91CAP9 processor initialization + * -------------------------------------------------------------------- */ + +void __init at91cap9_initialize(unsigned long main_clock) +{ + /* Map peripherals */ + iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc)); + + at91_arch_reset = at91cap9_reset; + at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1); + + /* Init clock subsystem */ + at91_clock_init(main_clock); + + /* Register the processor-specific clocks */ + at91cap9_register_clocks(); + + /* Register GPIO subsystem */ + at91_gpio_init(at91cap9_gpio, 4); +} + +/* -------------------------------------------------------------------- + * Interrupt initialization + * -------------------------------------------------------------------- */ + +/* + * The default interrupt priority levels (0 = lowest, 7 = highest). + */ +static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = { + 7, /* Advanced Interrupt Controller (FIQ) */ + 7, /* System Peripherals */ + 1, /* Parallel IO Controller A, B, C and D */ + 0, /* MP Block Peripheral 0 */ + 0, /* MP Block Peripheral 1 */ + 0, /* MP Block Peripheral 2 */ + 0, /* MP Block Peripheral 3 */ + 0, /* MP Block Peripheral 4 */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ + 0, /* Multimedia Card Interface 0 */ + 0, /* Multimedia Card Interface 1 */ + 3, /* CAN */ + 6, /* Two-Wire Interface */ + 5, /* Serial Peripheral Interface 0 */ + 5, /* Serial Peripheral Interface 1 */ + 4, /* Serial Synchronous Controller 0 */ + 4, /* Serial Synchronous Controller 1 */ + 5, /* AC97 Controller */ + 0, /* Timer Counter 0, 1 and 2 */ + 0, /* Pulse Width Modulation Controller */ + 3, /* Ethernet */ + 0, /* Advanced Encryption Standard, Triple DES*/ + 0, /* Analog-to-Digital Converter */ + 0, /* Image Sensor Interface */ + 3, /* LCD Controller */ + 0, /* DMA Controller */ + 2, /* USB Device Port */ + 2, /* USB Host port */ + 0, /* Advanced Interrupt Controller (IRQ0) */ + 0, /* Advanced Interrupt Controller (IRQ1) */ +}; + +void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS]) +{ + if (!priority) + priority = at91cap9_default_irq_priority; + + /* Initialize the AIC interrupt controller */ + at91_aic_init(priority); + + /* Enable GPIO interrupts */ + at91_gpio_irq_setup(); +} diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c new file mode 100644 index 00000000000..c50fad9cd14 --- /dev/null +++ b/arch/arm/mach-at91/at91cap9_devices.c @@ -0,0 +1,1066 @@ +/* + * arch/arm/mach-at91/at91cap9_devices.c + * + * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> + * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> + * Copyright (C) 2007 Atmel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/mtd/physmap.h> + +#include <video/atmel_lcdc.h> + +#include <asm/arch/board.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91cap9.h> +#include <asm/arch/at91sam926x_mc.h> +#include <asm/arch/at91cap9_matrix.h> + +#include "generic.h" + + +/* -------------------------------------------------------------------- + * USB Host + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) +static u64 ohci_dmamask = DMA_BIT_MASK(32); +static struct at91_usbh_data usbh_data; + +static struct resource usbh_resources[] = { + [0] = { + .start = AT91CAP9_UHP_BASE, + .end = AT91CAP9_UHP_BASE + SZ_1M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_UHP, + .end = AT91CAP9_ID_UHP, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91_usbh_device = { + .name = "at91_ohci", + .id = -1, + .dev = { + .dma_mask = &ohci_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &usbh_data, + }, + .resource = usbh_resources, + .num_resources = ARRAY_SIZE(usbh_resources), +}; + +void __init at91_add_device_usbh(struct at91_usbh_data *data) +{ + int i; + + if (!data) + return; + + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) + at91_set_gpio_output(data->vbus_pin[i], 0); + } + + usbh_data = *data; + platform_device_register(&at91_usbh_device); +} +#else +void __init at91_add_device_usbh(struct at91_usbh_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * Ethernet + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE) +static u64 eth_dmamask = DMA_BIT_MASK(32); +static struct at91_eth_data eth_data; + +static struct resource eth_resources[] = { + [0] = { + .start = AT91CAP9_BASE_EMAC, + .end = AT91CAP9_BASE_EMAC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_EMAC, + .end = AT91CAP9_ID_EMAC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_eth_device = { + .name = "macb", + .id = -1, + .dev = { + .dma_mask = ð_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = ð_data, + }, + .resource = eth_resources, + .num_resources = ARRAY_SIZE(eth_resources), +}; + +void __init at91_add_device_eth(struct at91_eth_data *data) +{ + if (!data) + return; + + if (data->phy_irq_pin) { + at91_set_gpio_input(data->phy_irq_pin, 0); + at91_set_deglitch(data->phy_irq_pin, 1); + } + + /* Pins used for MII and RMII */ + at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */ + at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */ + at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */ + at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */ + at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */ + at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */ + at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */ + at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */ + at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */ + at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */ + + if (!data->is_rmii) { + at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */ + at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */ + at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */ + at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */ + at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */ + at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */ + at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */ + at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */ + } + + eth_data = *data; + platform_device_register(&at91cap9_eth_device); +} +#else +void __init at91_add_device_eth(struct at91_eth_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * MMC / SD + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) +static u64 mmc_dmamask = DMA_BIT_MASK(32); +static struct at91_mmc_data mmc0_data, mmc1_data; + +static struct resource mmc0_resources[] = { + [0] = { + .start = AT91CAP9_BASE_MCI0, + .end = AT91CAP9_BASE_MCI0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_MCI0, + .end = AT91CAP9_ID_MCI0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_mmc0_device = { + .name = "at91_mci", + .id = 0, + .dev = { + .dma_mask = &mmc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &mmc0_data, + }, + .resource = mmc0_resources, + .num_resources = ARRAY_SIZE(mmc0_resources), +}; + +static struct resource mmc1_resources[] = { + [0] = { + .start = AT91CAP9_BASE_MCI1, + .end = AT91CAP9_BASE_MCI1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_MCI1, + .end = AT91CAP9_ID_MCI1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_mmc1_device = { + .name = "at91_mci", + .id = 1, + .dev = { + .dma_mask = &mmc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &mmc1_data, + }, + .resource = mmc1_resources, + .num_resources = ARRAY_SIZE(mmc1_resources), +}; + +void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) +{ + if (!data) + return; + + /* input/irq */ + if (data->det_pin) { + at91_set_gpio_input(data->det_pin, 1); + at91_set_deglitch(data->det_pin, 1); + } + if (data->wp_pin) + at91_set_gpio_input(data->wp_pin, 1); + if (data->vcc_pin) + at91_set_gpio_output(data->vcc_pin, 0); + + if (mmc_id == 0) { /* MCI0 */ + /* CLK */ + at91_set_A_periph(AT91_PIN_PA2, 0); + + /* CMD */ + at91_set_A_periph(AT91_PIN_PA1, 1); + + /* DAT0, maybe DAT1..DAT3 */ + at91_set_A_periph(AT91_PIN_PA0, 1); + if (data->wire4) { + at91_set_A_periph(AT91_PIN_PA3, 1); + at91_set_A_periph(AT91_PIN_PA4, 1); + at91_set_A_periph(AT91_PIN_PA5, 1); + } + + mmc0_data = *data; + at91_clock_associate("mci0_clk", &at91cap9_mmc1_device.dev, "mci_clk"); + platform_device_register(&at91cap9_mmc0_device); + } else { /* MCI1 */ + /* CLK */ + at91_set_A_periph(AT91_PIN_PA16, 0); + + /* CMD */ + at91_set_A_periph(AT91_PIN_PA17, 1); + + /* DAT0, maybe DAT1..DAT3 */ + at91_set_A_periph(AT91_PIN_PA18, 1); + if (data->wire4) { + at91_set_A_periph(AT91_PIN_PA19, 1); + at91_set_A_periph(AT91_PIN_PA20, 1); + at91_set_A_periph(AT91_PIN_PA21, 1); + } + + mmc1_data = *data; + at91_clock_associate("mci1_clk", &at91cap9_mmc1_device.dev, "mci_clk"); + platform_device_register(&at91cap9_mmc1_device); + } +} +#else +void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * NAND / SmartMedia + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) +static struct at91_nand_data nand_data; + +#define NAND_BASE AT91_CHIPSELECT_3 + +static struct resource nand_resources[] = { + { + .start = NAND_BASE, + .end = NAND_BASE + SZ_256M - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91cap9_nand_device = { + .name = "at91_nand", + .id = -1, + .dev = { + .platform_data = &nand_data, + }, + .resource = nand_resources, + .num_resources = ARRAY_SIZE(nand_resources), +}; + +void __init at91_add_device_nand(struct at91_nand_data *data) +{ + unsigned long csa, mode; + + if (!data) + return; + + csa = at91_sys_read(AT91_MATRIX_EBICSA); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); + + /* set the bus interface characteristics */ + at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1) + | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1)); + + at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6) + | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6)); + + at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8)); + + if (data->bus_width_16) + mode = AT91_SMC_DBW_16; + else + mode = AT91_SMC_DBW_8; + at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1)); + + /* enable pin */ + if (data->enable_pin) + at91_set_gpio_output(data->enable_pin, 1); + + /* ready/busy pin */ + if (data->rdy_pin) + at91_set_gpio_input(data->rdy_pin, 1); + + /* card detect pin */ + if (data->det_pin) + at91_set_gpio_input(data->det_pin, 1); + + nand_data = *data; + platform_device_register(&at91cap9_nand_device); +} +#else +void __init at91_add_device_nand(struct at91_nand_data *data) {} +#endif + +/* -------------------------------------------------------------------- + * TWI (i2c) + * -------------------------------------------------------------------- */ + +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PB4, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PB5, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91cap9_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PB4, 1); + + at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PB5, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91cap9_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) + +static struct resource twi_resources[] = { + [0] = { + .start = AT91CAP9_BASE_TWI, + .end = AT91CAP9_BASE_TWI + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_TWI, + .end = AT91CAP9_ID_TWI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_twi_device = { + .name = "at91_i2c", + .id = -1, + .resource = twi_resources, + .num_resources = ARRAY_SIZE(twi_resources), +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + /* pins used for TWI interface */ + at91_set_B_periph(AT91_PIN_PB4, 0); /* TWD */ + at91_set_multi_drive(AT91_PIN_PB4, 1); + + at91_set_B_periph(AT91_PIN_PB5, 0); /* TWCK */ + at91_set_multi_drive(AT91_PIN_PB5, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91cap9_twi_device); +} +#else +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} +#endif + +/* -------------------------------------------------------------------- + * SPI + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) +static u64 spi_dmamask = DMA_BIT_MASK(32); + +static struct resource spi0_resources[] = { + [0] = { + .start = AT91CAP9_BASE_SPI0, + .end = AT91CAP9_BASE_SPI0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_SPI0, + .end = AT91CAP9_ID_SPI0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_spi0_device = { + .name = "atmel_spi", + .id = 0, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = spi0_resources, + .num_resources = ARRAY_SIZE(spi0_resources), +}; + +static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 }; + +static struct resource spi1_resources[] = { + [0] = { + .start = AT91CAP9_BASE_SPI1, + .end = AT91CAP9_BASE_SPI1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_SPI1, + .end = AT91CAP9_ID_SPI1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_spi1_device = { + .name = "atmel_spi", + .id = 1, + .dev = { + .dma_mask = &spi_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = spi1_resources, + .num_resources = ARRAY_SIZE(spi1_resources), +}; + +static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 }; + +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) +{ + int i; + unsigned long cs_pin; + short enable_spi0 = 0; + short enable_spi1 = 0; + + /* Choose SPI chip-selects */ + for (i = 0; i < nr_devices; i++) { + if (devices[i].controller_data) + cs_pin = (unsigned long) devices[i].controller_data; + else if (devices[i].bus_num == 0) + cs_pin = spi0_standard_cs[devices[i].chip_select]; + else + cs_pin = spi1_standard_cs[devices[i].chip_select]; + + if (devices[i].bus_num == 0) + enable_spi0 = 1; + else + enable_spi1 = 1; + + /* enable chip-select pin */ + at91_set_gpio_output(cs_pin, 1); + + /* pass chip-select pin to driver */ + devices[i].controller_data = (void *) cs_pin; + } + + spi_register_board_info(devices, nr_devices); + + /* Configure SPI bus(es) */ + if (enable_spi0) { + at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */ + at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */ + at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */ + + at91_clock_associate("spi0_clk", &at91cap9_spi0_device.dev, "spi_clk"); + platform_device_register(&at91cap9_spi0_device); + } + if (enable_spi1) { + at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */ + at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */ + at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */ + + at91_clock_associate("spi1_clk", &at91cap9_spi1_device.dev, "spi_clk"); + platform_device_register(&at91cap9_spi1_device); + } +} +#else +void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {} +#endif + + +/* -------------------------------------------------------------------- + * RTT + * -------------------------------------------------------------------- */ + +static struct platform_device at91cap9_rtt_device = { + .name = "at91_rtt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91cap9_rtt_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91cap9_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91cap9_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * AC97 + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE) +static u64 ac97_dmamask = DMA_BIT_MASK(32); +static struct atmel_ac97_data ac97_data; + +static struct resource ac97_resources[] = { + [0] = { + .start = AT91CAP9_BASE_AC97C, + .end = AT91CAP9_BASE_AC97C + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_AC97C, + .end = AT91CAP9_ID_AC97C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_ac97_device = { + .name = "ac97c", + .id = 1, + .dev = { + .dma_mask = &ac97_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &ac97_data, + }, + .resource = ac97_resources, + .num_resources = ARRAY_SIZE(ac97_resources), +}; + +void __init at91_add_device_ac97(struct atmel_ac97_data *data) +{ + if (!data) + return; + + at91_set_A_periph(AT91_PIN_PA6, 0); /* AC97FS */ + at91_set_A_periph(AT91_PIN_PA7, 0); /* AC97CK */ + at91_set_A_periph(AT91_PIN_PA8, 0); /* AC97TX */ + at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */ + + /* reset */ + if (data->reset_pin) + at91_set_gpio_output(data->reset_pin, 0); + + ac97_data = *data; + platform_device_register(&at91cap9_ac97_device); +} +#else +void __init at91_add_device_ac97(struct atmel_ac97_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * LCD Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) +static u64 lcdc_dmamask = DMA_BIT_MASK(32); +static struct atmel_lcdfb_info lcdc_data; + +static struct resource lcdc_resources[] = { + [0] = { + .start = AT91CAP9_LCDC_BASE, + .end = AT91CAP9_LCDC_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_LCDC, + .end = AT91CAP9_ID_LCDC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91_lcdc_device = { + .name = "atmel_lcdfb", + .id = 0, + .dev = { + .dma_mask = &lcdc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &lcdc_data, + }, + .resource = lcdc_resources, + .num_resources = ARRAY_SIZE(lcdc_resources), +}; + +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) +{ + if (!data) + return; + + at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */ + at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */ + at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */ + at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */ + at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */ + at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */ + at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */ + at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */ + at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */ + at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */ + at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */ + at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */ + at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */ + at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */ + at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */ + at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */ + at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */ + at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */ + at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */ + at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */ + at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */ + at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */ + + lcdc_data = *data; + platform_device_register(&at91_lcdc_device); +} +#else +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91CAP9_BASE_SSC0, + .end = AT91CAP9_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_SSC0, + .end = AT91CAP9_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91CAP9_BASE_SSC1, + .end = AT91CAP9_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_SSC1, + .end = AT91CAP9_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91cap9_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB6, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB7, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB8, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB9, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB11, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91CAP9_ID_SSC0: + pdev = &at91cap9_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "ssc"); + break; + case AT91CAP9_ID_SSC1: + pdev = &at91cap9_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "ssc"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} +#endif + + +/* -------------------------------------------------------------------- + * UART + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SERIAL_ATMEL) +static struct resource dbgu_resources[] = { + [0] = { + .start = AT91_VA_BASE_SYS + AT91_DBGU, + .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91_ID_SYS, + .end = AT91_ID_SYS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct atmel_uart_data dbgu_data = { + .use_dma_tx = 0, + .use_dma_rx = 0, /* DBGU not capable of receive DMA */ + .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), +}; + +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + +static struct platform_device at91cap9_dbgu_device = { + .name = "atmel_usart", + .id = 0, + .dev = { + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, + }, + .resource = dbgu_resources, + .num_resources = ARRAY_SIZE(dbgu_resources), +}; + +static inline void configure_dbgu_pins(void) +{ + at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */ + at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */ +} + +static struct resource uart0_resources[] = { + [0] = { + .start = AT91CAP9_BASE_US0, + .end = AT91CAP9_BASE_US0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_US0, + .end = AT91CAP9_ID_US0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct atmel_uart_data uart0_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static u64 uart0_dmamask = DMA_BIT_MASK(32); + +static struct platform_device at91cap9_uart0_device = { + .name = "atmel_usart", + .id = 1, + .dev = { + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, + }, + .resource = uart0_resources, + .num_resources = ARRAY_SIZE(uart0_resources), +}; + +static inline void configure_usart0_pins(unsigned pins) +{ + at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */ + at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA24, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA25, 0); /* CTS0 */ +} + +static struct resource uart1_resources[] = { + [0] = { + .start = AT91CAP9_BASE_US1, + .end = AT91CAP9_BASE_US1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_US1, + .end = AT91CAP9_ID_US1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct atmel_uart_data uart1_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static u64 uart1_dmamask = DMA_BIT_MASK(32); + +static struct platform_device at91cap9_uart1_device = { + .name = "atmel_usart", + .id = 2, + .dev = { + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, + }, + .resource = uart1_resources, + .num_resources = ARRAY_SIZE(uart1_resources), +}; + +static inline void configure_usart1_pins(unsigned pins) +{ + at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */ + at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */ +} + +static struct resource uart2_resources[] = { + [0] = { + .start = AT91CAP9_BASE_US2, + .end = AT91CAP9_BASE_US2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91CAP9_ID_US2, + .end = AT91CAP9_ID_US2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct atmel_uart_data uart2_data = { + .use_dma_tx = 1, + .use_dma_rx = 1, +}; + +static u64 uart2_dmamask = DMA_BIT_MASK(32); + +static struct platform_device at91cap9_uart2_device = { + .name = "atmel_usart", + .id = 3, + .dev = { + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, + }, + .resource = uart2_resources, + .num_resources = ARRAY_SIZE(uart2_resources), +}; + +static inline void configure_usart2_pins(unsigned pins) +{ + at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */ + at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */ +} + +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +struct platform_device *atmel_default_console_device; /* the serial console device */ + +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91cap9_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91CAP9_ID_US0: + pdev = &at91cap9_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91CAP9_ID_US1: + pdev = &at91cap9_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91CAP9_ID_US2: + pdev = &at91cap9_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + +void __init at91_add_device_serial(void) +{ + int i; + + for (i = 0; i < ATMEL_MAX_UART; i++) { + if (at91_uarts[i]) + platform_device_register(at91_uarts[i]); + } +} +#else +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} +void __init at91_add_device_serial(void) {} +#endif + + +/* -------------------------------------------------------------------- */ +/* + * These devices are always present and don't need any board-specific + * setup. + */ +static int __init at91_add_standard_devices(void) +{ + at91_add_device_rtt(); + at91_add_device_watchdog(); + return 0; +} + +arch_initcall(at91_add_standard_devices); diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index 2cad2bf864b..d688c1dbd92 100644 --- a/arch/arm/mach-at91/at91rm9200.c +++ b/arch/arm/mach-at91/at91rm9200.c @@ -301,28 +301,28 @@ void __init at91rm9200_initialize(unsigned long main_clock, unsigned short banks static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = { 7, /* Advanced Interrupt Controller (FIQ) */ 7, /* System Peripherals */ - 0, /* Parallel IO Controller A */ - 0, /* Parallel IO Controller B */ - 0, /* Parallel IO Controller C */ - 0, /* Parallel IO Controller D */ - 6, /* USART 0 */ - 6, /* USART 1 */ - 6, /* USART 2 */ - 6, /* USART 3 */ + 1, /* Parallel IO Controller A */ + 1, /* Parallel IO Controller B */ + 1, /* Parallel IO Controller C */ + 1, /* Parallel IO Controller D */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ + 5, /* USART 3 */ 0, /* Multimedia Card Interface */ - 4, /* USB Device Port */ - 0, /* Two-Wire Interface */ - 6, /* Serial Peripheral Interface */ - 5, /* Serial Synchronous Controller 0 */ - 5, /* Serial Synchronous Controller 1 */ - 5, /* Serial Synchronous Controller 2 */ + 2, /* USB Device Port */ + 6, /* Two-Wire Interface */ + 5, /* Serial Peripheral Interface */ + 4, /* Serial Synchronous Controller 0 */ + 4, /* Serial Synchronous Controller 1 */ + 4, /* Serial Synchronous Controller 2 */ 0, /* Timer Counter 0 */ 0, /* Timer Counter 1 */ 0, /* Timer Counter 2 */ 0, /* Timer Counter 3 */ 0, /* Timer Counter 4 */ 0, /* Timer Counter 5 */ - 3, /* USB Host port */ + 2, /* USB Host port */ 3, /* Ethernet MAC */ 0, /* Advanced Interrupt Controller (IRQ0) */ 0, /* Advanced Interrupt Controller (IRQ1) */ diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 9296833f91c..ef6aeb86e98 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -13,6 +13,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/i2c-gpio.h> @@ -29,7 +30,7 @@ * -------------------------------------------------------------------- */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) -static u64 ohci_dmamask = 0xffffffffUL; +static u64 ohci_dmamask = DMA_BIT_MASK(32); static struct at91_usbh_data usbh_data; static struct resource usbh_resources[] = { @@ -50,7 +51,7 @@ static struct platform_device at91rm9200_usbh_device = { .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &usbh_data, }, .resource = usbh_resources, @@ -125,7 +126,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_ARM_AT91_ETHER) || defined(CONFIG_ARM_AT91_ETHER_MODULE) -static u64 eth_dmamask = 0xffffffffUL; +static u64 eth_dmamask = DMA_BIT_MASK(32); static struct at91_eth_data eth_data; static struct resource eth_resources[] = { @@ -146,7 +147,7 @@ static struct platform_device at91rm9200_eth_device = { .id = -1, .dev = { .dma_mask = ð_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = ð_data, }, .resource = eth_resources, @@ -285,7 +286,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc_data; static struct resource mmc_resources[] = { @@ -306,7 +307,7 @@ static struct platform_device at91rm9200_mmc_device = { .id = -1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc_data, }, .resource = mmc_resources, @@ -375,7 +376,7 @@ static struct at91_nand_data nand_data; static struct resource nand_resources[] = { { .start = NAND_BASE, - .end = NAND_BASE + SZ_8M - 1, + .end = NAND_BASE + SZ_256M - 1, .flags = IORESOURCE_MEM, } }; @@ -513,7 +514,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi_resources[] = { [0] = { @@ -533,7 +534,7 @@ static struct platform_device at91rm9200_spi_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi_resources, .num_resources = ARRAY_SIZE(spi_resources), @@ -557,8 +558,11 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) else cs_pin = spi_standard_cs[devices[i].chip_select]; - /* enable chip-select pin */ - at91_set_gpio_output(cs_pin, 1); + if (devices[i].chip_select == 0) /* for CS0 errata */ + at91_set_A_periph(cs_pin, 0); + else + at91_set_gpio_output(cs_pin, 1); + /* pass chip-select pin to driver */ devices[i].controller_data = (void *) cs_pin; @@ -613,24 +617,175 @@ static void __init at91_add_device_watchdog(void) {} /* -------------------------------------------------------------------- - * LEDs + * SSC -- Synchronous Serial Controller * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC0, + .end = AT91RM9200_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC0, + .end = AT91RM9200_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC1, + .end = AT91RM9200_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC1, + .end = AT91RM9200_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB6, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB7, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB8, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB9, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB11, 1); +} + +static u64 ssc2_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc2_resources[] = { + [0] = { + .start = AT91RM9200_BASE_SSC2, + .end = AT91RM9200_BASE_SSC2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91RM9200_ID_SSC2, + .end = AT91RM9200_ID_SSC2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91rm9200_ssc2_device = { + .name = "ssc", + .id = 2, + .dev = { + .dma_mask = &ssc2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc2_resources, + .num_resources = ARRAY_SIZE(ssc2_resources), +}; + +static inline void configure_ssc2_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB12, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB13, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB14, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB15, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB16, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB17, 1); +} -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + struct platform_device *pdev; - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91RM9200_ID_SSC0: + pdev = &at91rm9200_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "ssc"); + break; + case AT91RM9200_ID_SSC1: + pdev = &at91rm9200_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "ssc"); + break; + case AT91RM9200_ID_SSC2: + pdev = &at91rm9200_ssc2_device; + configure_ssc2_pins(pins); + at91_clock_associate("ssc2_clk", &pdev->dev, "ssc"); + break; + default: + return; + } + + platform_device_register(pdev); } + #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -658,12 +813,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91rm9200_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -693,28 +851,35 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91rm9200_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA17, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PA18, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PA20, 0); /* CTS0 */ - /* - * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21. - * We need to drive the pin manually. Default is off (RTS is active low). - */ - at91_set_gpio_output(AT91_PIN_PA21, 1); + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA20, 0); /* CTS0 */ + + if (pins & ATMEL_UART_RTS) { + /* + * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21. + * We need to drive the pin manually. Default is off (RTS is active low). + */ + at91_set_gpio_output(AT91_PIN_PA21, 1); + } } static struct resource uart1_resources[] = { @@ -735,27 +900,37 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91rm9200_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { - at91_set_A_periph(AT91_PIN_PB18, 0); /* RI1 */ - at91_set_A_periph(AT91_PIN_PB19, 0); /* DTR1 */ at91_set_A_periph(AT91_PIN_PB20, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PB21, 0); /* RXD1 */ - at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD1 */ - at91_set_A_periph(AT91_PIN_PB24, 0); /* CTS1 */ - at91_set_A_periph(AT91_PIN_PB25, 0); /* DSR1 */ - at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS1 */ + + if (pins & ATMEL_UART_RI) + at91_set_A_periph(AT91_PIN_PB18, 0); /* RI1 */ + if (pins & ATMEL_UART_DTR) + at91_set_A_periph(AT91_PIN_PB19, 0); /* DTR1 */ + if (pins & ATMEL_UART_DCD) + at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD1 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PB24, 0); /* CTS1 */ + if (pins & ATMEL_UART_DSR) + at91_set_A_periph(AT91_PIN_PB25, 0); /* DSR1 */ + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS1 */ } static struct resource uart2_resources[] = { @@ -776,21 +951,29 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91rm9200_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA22, 0); /* RXD2 */ at91_set_A_periph(AT91_PIN_PA23, 1); /* TXD2 */ + + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PA30, 0); /* CTS2 */ + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PA31, 0); /* RTS2 */ } static struct resource uart3_resources[] = { @@ -811,27 +994,35 @@ static struct atmel_uart_data uart3_data = { .use_dma_rx = 1, }; +static u64 uart3_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91rm9200_uart3_device = { .name = "atmel_usart", .id = 4, .dev = { - .platform_data = &uart3_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart3_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart3_data, }, .resource = uart3_resources, .num_resources = ARRAY_SIZE(uart3_resources), }; -static inline void configure_usart3_pins(void) +static inline void configure_usart3_pins(unsigned pins) { at91_set_B_periph(AT91_PIN_PA5, 1); /* TXD3 */ at91_set_B_periph(AT91_PIN_PA6, 0); /* RXD3 */ + + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PB1, 0); /* CTS3 */ + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PB0, 0); /* RTS3 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -839,22 +1030,22 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91rm9200_uart0_device; at91_clock_associate("usart0_clk", &at91rm9200_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI); at91_uarts[i] = &at91rm9200_uart1_device; at91_clock_associate("usart1_clk", &at91rm9200_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(0); at91_uarts[i] = &at91rm9200_uart2_device; at91_clock_associate("usart2_clk", &at91rm9200_uart2_device.dev, "usart"); break; case 3: - configure_usart3_pins(); + configure_usart3_pins(0); at91_uarts[i] = &at91rm9200_uart3_device; at91_clock_associate("usart3_clk", &at91rm9200_uart3_device.dev, "usart"); break; @@ -876,6 +1067,53 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91rm9200_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91RM9200_ID_US0: + pdev = &at91rm9200_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91RM9200_ID_US1: + pdev = &at91rm9200_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91RM9200_ID_US2: + pdev = &at91rm9200_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + case AT91RM9200_ID_US3: + pdev = &at91rm9200_uart3_device; + configure_usart3_pins(pins); + at91_clock_associate("usart3_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -886,7 +1124,9 @@ void __init at91_add_device_serial(void) } } #else -void __init at91_init_serial(struct at91_uart_config *config) {} +void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index e47381e8aab..18d06612ce8 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -327,30 +327,30 @@ void __init at91sam9260_initialize(unsigned long main_clock) static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = { 7, /* Advanced Interrupt Controller */ 7, /* System Peripherals */ - 0, /* Parallel IO Controller A */ - 0, /* Parallel IO Controller B */ - 0, /* Parallel IO Controller C */ + 1, /* Parallel IO Controller A */ + 1, /* Parallel IO Controller B */ + 1, /* Parallel IO Controller C */ 0, /* Analog-to-Digital Converter */ - 6, /* USART 0 */ - 6, /* USART 1 */ - 6, /* USART 2 */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ 0, /* Multimedia Card Interface */ - 4, /* USB Device Port */ - 0, /* Two-Wire Interface */ - 6, /* Serial Peripheral Interface 0 */ - 6, /* Serial Peripheral Interface 1 */ + 2, /* USB Device Port */ + 6, /* Two-Wire Interface */ + 5, /* Serial Peripheral Interface 0 */ + 5, /* Serial Peripheral Interface 1 */ 5, /* Serial Synchronous Controller */ 0, 0, 0, /* Timer Counter 0 */ 0, /* Timer Counter 1 */ 0, /* Timer Counter 2 */ - 3, /* USB Host port */ + 2, /* USB Host port */ 3, /* Ethernet */ 0, /* Image Sensor Interface */ - 6, /* USART 3 */ - 6, /* USART 4 */ - 6, /* USART 5 */ + 5, /* USART 3 */ + 5, /* USART 4 */ + 5, /* USART 5 */ 0, /* Timer Counter 3 */ 0, /* Timer Counter 4 */ 0, /* Timer Counter 5 */ diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 3091bf47d8c..105f8403860 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -12,6 +12,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/i2c-gpio.h> @@ -29,7 +30,7 @@ * -------------------------------------------------------------------- */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) -static u64 ohci_dmamask = 0xffffffffUL; +static u64 ohci_dmamask = DMA_BIT_MASK(32); static struct at91_usbh_data usbh_data; static struct resource usbh_resources[] = { @@ -50,7 +51,7 @@ static struct platform_device at91_usbh_device = { .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &usbh_data, }, .resource = usbh_resources, @@ -125,7 +126,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE) -static u64 eth_dmamask = 0xffffffffUL; +static u64 eth_dmamask = DMA_BIT_MASK(32); static struct at91_eth_data eth_data; static struct resource eth_resources[] = { @@ -146,7 +147,7 @@ static struct platform_device at91sam9260_eth_device = { .id = -1, .dev = { .dma_mask = ð_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = ð_data, }, .resource = eth_resources, @@ -199,7 +200,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc_data; static struct resource mmc_resources[] = { @@ -220,7 +221,7 @@ static struct platform_device at91sam9260_mmc_device = { .id = -1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc_data, }, .resource = mmc_resources, @@ -289,7 +290,7 @@ static struct at91_nand_data nand_data; static struct resource nand_resources[] = { { .start = NAND_BASE, - .end = NAND_BASE + SZ_8M - 1, + .end = NAND_BASE + SZ_256M - 1, .flags = IORESOURCE_MEM, } }; @@ -312,7 +313,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) return; csa = at91_sys_read(AT91_MATRIX_EBICSA); - at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); /* set the bus interface characteristics */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) @@ -431,7 +432,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi0_resources[] = { [0] = { @@ -451,7 +452,7 @@ static struct platform_device at91sam9260_spi0_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi0_resources, .num_resources = ARRAY_SIZE(spi0_resources), @@ -477,7 +478,7 @@ static struct platform_device at91sam9260_spi1_device = { .id = 1, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi1_resources, .num_resources = ARRAY_SIZE(spi1_resources), @@ -539,24 +540,126 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) /* -------------------------------------------------------------------- - * LEDs + * RTT * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +static struct resource rtt_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT, + .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +static struct platform_device at91sam9260_rtt_device = { + .name = "at91_rtt", + .id = -1, + .resource = rtt_resources, + .num_resources = ARRAY_SIZE(rtt_resources), +}; + +static void __init at91_add_device_rtt(void) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + platform_device_register(&at91sam9260_rtt_device); +} + - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9260_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9260_wdt_device); } #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc_resources[] = { + [0] = { + .start = AT91SAM9260_BASE_SSC, + .end = AT91SAM9260_BASE_SSC + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9260_ID_SSC, + .end = AT91SAM9260_ID_SSC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9260_ssc_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc_resources, + .num_resources = ARRAY_SIZE(ssc_resources), +}; + +static inline void configure_ssc_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB17, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB16, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB18, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB19, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB20, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB21, 1); +} + +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9260_ID_SSC: + pdev = &at91sam9260_ssc_device; + configure_ssc_pins(pins); + at91_clock_associate("ssc_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -583,12 +686,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -618,27 +724,37 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */ - at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */ - at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */ - at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */ - at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */ - at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */ + if (pins & ATMEL_UART_DTR) + at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */ + if (pins & ATMEL_UART_DSR) + at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */ + if (pins & ATMEL_UART_DCD) + at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */ + if (pins & ATMEL_UART_RI) + at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */ } static struct resource uart1_resources[] = { @@ -659,23 +775,29 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */ - at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */ - at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */ } static struct resource uart2_resources[] = { @@ -696,21 +818,29 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA4, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA5, 0); /* CTS2 */ } static struct resource uart3_resources[] = { @@ -731,21 +861,29 @@ static struct atmel_uart_data uart3_data = { .use_dma_rx = 1, }; +static u64 uart3_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart3_device = { .name = "atmel_usart", .id = 4, .dev = { - .platform_data = &uart3_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart3_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart3_data, }, .resource = uart3_resources, .num_resources = ARRAY_SIZE(uart3_resources), }; -static inline void configure_usart3_pins(void) +static inline void configure_usart3_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */ at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PC8, 0); /* RTS3 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PC10, 0); /* CTS3 */ } static struct resource uart4_resources[] = { @@ -766,12 +904,15 @@ static struct atmel_uart_data uart4_data = { .use_dma_rx = 1, }; +static u64 uart4_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart4_device = { .name = "atmel_usart", .id = 5, .dev = { - .platform_data = &uart4_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart4_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart4_data, }, .resource = uart4_resources, .num_resources = ARRAY_SIZE(uart4_resources), @@ -801,12 +942,15 @@ static struct atmel_uart_data uart5_data = { .use_dma_rx = 1, }; +static u64 uart5_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9260_uart5_device = { .name = "atmel_usart", .id = 6, .dev = { - .platform_data = &uart5_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart5_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart5_data, }, .resource = uart5_resources, .num_resources = ARRAY_SIZE(uart5_resources), @@ -818,10 +962,10 @@ static inline void configure_usart5_pins(void) at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -829,22 +973,22 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI); at91_uarts[i] = &at91sam9260_uart0_device; at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9260_uart1_device; at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(0); at91_uarts[i] = &at91sam9260_uart2_device; at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart"); break; case 3: - configure_usart3_pins(); + configure_usart3_pins(0); at91_uarts[i] = &at91sam9260_uart3_device; at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart"); break; @@ -876,6 +1020,63 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9260_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US0: + pdev = &at91sam9260_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US1: + pdev = &at91sam9260_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US2: + pdev = &at91sam9260_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US3: + pdev = &at91sam9260_uart3_device; + configure_usart3_pins(pins); + at91_clock_associate("usart3_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US4: + pdev = &at91sam9260_uart4_device; + configure_usart4_pins(); + at91_clock_associate("usart4_clk", &pdev->dev, "usart"); + break; + case AT91SAM9260_ID_US5: + pdev = &at91sam9260_uart5_device; + configure_usart5_pins(); + at91_clock_associate("usart5_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -886,7 +1087,9 @@ void __init at91_add_device_serial(void) } } #else -void __init at91_init_serial(struct at91_uart_config *config) {} +void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif @@ -898,6 +1101,8 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; } diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index dfe8c39c9fb..90b87e1877d 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -279,25 +279,25 @@ void __init at91sam9261_initialize(unsigned long main_clock) static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = { 7, /* Advanced Interrupt Controller */ 7, /* System Peripherals */ - 0, /* Parallel IO Controller A */ - 0, /* Parallel IO Controller B */ - 0, /* Parallel IO Controller C */ + 1, /* Parallel IO Controller A */ + 1, /* Parallel IO Controller B */ + 1, /* Parallel IO Controller C */ 0, - 6, /* USART 0 */ - 6, /* USART 1 */ - 6, /* USART 2 */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ 0, /* Multimedia Card Interface */ - 4, /* USB Device Port */ - 0, /* Two-Wire Interface */ - 6, /* Serial Peripheral Interface 0 */ - 6, /* Serial Peripheral Interface 1 */ - 5, /* Serial Synchronous Controller 0 */ - 5, /* Serial Synchronous Controller 1 */ - 5, /* Serial Synchronous Controller 2 */ + 2, /* USB Device Port */ + 6, /* Two-Wire Interface */ + 5, /* Serial Peripheral Interface 0 */ + 5, /* Serial Peripheral Interface 1 */ + 4, /* Serial Synchronous Controller 0 */ + 4, /* Serial Synchronous Controller 1 */ + 4, /* Serial Synchronous Controller 2 */ 0, /* Timer Counter 0 */ 0, /* Timer Counter 1 */ 0, /* Timer Counter 2 */ - 3, /* USB Host port */ + 2, /* USB Host port */ 3, /* LCD Controller */ 0, 0, diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 64979a9023c..245641263fc 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -13,6 +13,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/i2c-gpio.h> @@ -33,7 +34,7 @@ * -------------------------------------------------------------------- */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) -static u64 ohci_dmamask = 0xffffffffUL; +static u64 ohci_dmamask = DMA_BIT_MASK(32); static struct at91_usbh_data usbh_data; static struct resource usbh_resources[] = { @@ -54,7 +55,7 @@ static struct platform_device at91sam9261_usbh_device = { .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &usbh_data, }, .resource = usbh_resources, @@ -106,8 +107,6 @@ static struct platform_device at91sam9261_udc_device = { void __init at91_add_device_udc(struct at91_udc_data *data) { - unsigned long x; - if (!data) return; @@ -116,9 +115,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) at91_set_deglitch(data->vbus_pin, 1); } - /* Pullup pin is handled internally */ - x = at91_sys_read(AT91_MATRIX_USBPUCR); - at91_sys_write(AT91_MATRIX_USBPUCR, x | AT91_MATRIX_USBPUCR_PUON); + /* Pullup pin is handled internally by USB device peripheral */ udc_data = *data; platform_device_register(&at91sam9261_udc_device); @@ -132,7 +129,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc_data; static struct resource mmc_resources[] = { @@ -153,7 +150,7 @@ static struct platform_device at91sam9261_mmc_device = { .id = -1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc_data, }, .resource = mmc_resources, @@ -232,7 +229,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) return; csa = at91_sys_read(AT91_MATRIX_EBICSA); - at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); /* set the bus interface characteristics */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) @@ -354,7 +351,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi0_resources[] = { [0] = { @@ -374,7 +371,7 @@ static struct platform_device at91sam9261_spi0_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi0_resources, .num_resources = ARRAY_SIZE(spi0_resources), @@ -400,7 +397,7 @@ static struct platform_device at91sam9261_spi1_device = { .id = 1, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi1_resources, .num_resources = ARRAY_SIZE(spi1_resources), @@ -466,7 +463,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) -static u64 lcdc_dmamask = 0xffffffffUL; +static u64 lcdc_dmamask = DMA_BIT_MASK(32); static struct atmel_lcdfb_info lcdc_data; static struct resource lcdc_resources[] = { @@ -494,7 +491,7 @@ static struct platform_device at91_lcdc_device = { .id = 0, .dev = { .dma_mask = &lcdc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &lcdc_data, }, .resource = lcdc_resources, @@ -507,6 +504,17 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) return; } +#if defined(CONFIG_FB_ATMEL_STN) + at91_set_A_periph(AT91_PIN_PB0, 0); /* LCDVSYNC */ + at91_set_A_periph(AT91_PIN_PB1, 0); /* LCDHSYNC */ + at91_set_A_periph(AT91_PIN_PB2, 0); /* LCDDOTCK */ + at91_set_A_periph(AT91_PIN_PB3, 0); /* LCDDEN */ + at91_set_A_periph(AT91_PIN_PB4, 0); /* LCDCC */ + at91_set_A_periph(AT91_PIN_PB5, 0); /* LCDD0 */ + at91_set_A_periph(AT91_PIN_PB6, 0); /* LCDD1 */ + at91_set_A_periph(AT91_PIN_PB7, 0); /* LCDD2 */ + at91_set_A_periph(AT91_PIN_PB8, 0); /* LCDD3 */ +#else at91_set_A_periph(AT91_PIN_PB1, 0); /* LCDHSYNC */ at91_set_A_periph(AT91_PIN_PB2, 0); /* LCDDOTCK */ at91_set_A_periph(AT91_PIN_PB3, 0); /* LCDDEN */ @@ -529,6 +537,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) at91_set_B_periph(AT91_PIN_PB26, 0); /* LCDD21 */ at91_set_B_periph(AT91_PIN_PB27, 0); /* LCDD22 */ at91_set_B_periph(AT91_PIN_PB28, 0); /* LCDD23 */ +#endif lcdc_data = *data; platform_device_register(&at91_lcdc_device); @@ -539,24 +548,220 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} /* -------------------------------------------------------------------- - * LEDs + * RTT + * -------------------------------------------------------------------- */ + +static struct resource rtt_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT, + .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9261_rtt_device = { + .name = "at91_rtt", + .id = -1, + .resource = rtt_resources, + .num_resources = ARRAY_SIZE(rtt_resources), +}; + +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91sam9261_rtt_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9261_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9261_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC0, + .end = AT91SAM9261_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC0, + .end = AT91SAM9261_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB21, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB22, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB23, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB24, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB25, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB26, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC1, + .end = AT91SAM9261_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC1, + .end = AT91SAM9261_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PA17, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PA18, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PA19, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PA20, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA21, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA22, 1); +} + +static u64 ssc2_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc2_resources[] = { + [0] = { + .start = AT91SAM9261_BASE_SSC2, + .end = AT91SAM9261_BASE_SSC2 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9261_ID_SSC2, + .end = AT91SAM9261_ID_SSC2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9261_ssc2_device = { + .name = "ssc", + .id = 2, + .dev = { + .dma_mask = &ssc2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc2_resources, + .num_resources = ARRAY_SIZE(ssc2_resources), +}; + +static inline void configure_ssc2_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PC25, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PC26, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PC27, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PC28, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PC29, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PC30, 1); +} -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +/* + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9261_ID_SSC0: + pdev = &at91sam9261_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9261_ID_SSC1: + pdev = &at91sam9261_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9261_ID_SSC2: + pdev = &at91sam9261_ssc2_device; + configure_ssc2_pins(pins); + at91_clock_associate("ssc2_clk", &pdev->dev, "pclk"); + break; + default: + return; + } - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; + platform_device_register(pdev); } + #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -584,12 +789,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9261_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -619,23 +827,29 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9261_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PC8, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PC9, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PC10, 0); /* RTS0 */ - at91_set_A_periph(AT91_PIN_PC11, 0); /* CTS0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PC10, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PC11, 0); /* CTS0 */ } static struct resource uart1_resources[] = { @@ -656,21 +870,29 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9261_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PC12, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PC13, 0); /* RXD1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PA12, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PA13, 0); /* CTS1 */ } static struct resource uart2_resources[] = { @@ -691,27 +913,35 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9261_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PC15, 0); /* RXD2 */ at91_set_A_periph(AT91_PIN_PC14, 1); /* TXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PA15, 0); /* RTS2*/ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PA16, 0); /* CTS2 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -719,17 +949,17 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9261_uart0_device; at91_clock_associate("usart0_clk", &at91sam9261_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(0); at91_uarts[i] = &at91sam9261_uart1_device; at91_clock_associate("usart1_clk", &at91sam9261_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(0); at91_uarts[i] = &at91sam9261_uart2_device; at91_clock_associate("usart2_clk", &at91sam9261_uart2_device.dev, "usart"); break; @@ -751,6 +981,48 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9261_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9261_ID_US0: + pdev = &at91sam9261_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9261_ID_US1: + pdev = &at91sam9261_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9261_ID_US2: + pdev = &at91sam9261_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -761,7 +1033,9 @@ void __init at91_add_device_serial(void) } } #else -void __init at91_init_serial(struct at91_uart_config *config) {} +void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif @@ -774,6 +1048,8 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; } diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 00e27b17785..a53ba0f7435 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -304,34 +304,34 @@ void __init at91sam9263_initialize(unsigned long main_clock) static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = { 7, /* Advanced Interrupt Controller (FIQ) */ 7, /* System Peripherals */ - 0, /* Parallel IO Controller A */ - 0, /* Parallel IO Controller B */ - 0, /* Parallel IO Controller C, D and E */ + 1, /* Parallel IO Controller A */ + 1, /* Parallel IO Controller B */ + 1, /* Parallel IO Controller C, D and E */ 0, 0, - 6, /* USART 0 */ - 6, /* USART 1 */ - 6, /* USART 2 */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ 0, /* Multimedia Card Interface 0 */ 0, /* Multimedia Card Interface 1 */ - 4, /* CAN */ - 0, /* Two-Wire Interface */ - 6, /* Serial Peripheral Interface 0 */ - 6, /* Serial Peripheral Interface 1 */ - 5, /* Serial Synchronous Controller 0 */ - 5, /* Serial Synchronous Controller 1 */ - 6, /* AC97 Controller */ + 3, /* CAN */ + 6, /* Two-Wire Interface */ + 5, /* Serial Peripheral Interface 0 */ + 5, /* Serial Peripheral Interface 1 */ + 4, /* Serial Synchronous Controller 0 */ + 4, /* Serial Synchronous Controller 1 */ + 5, /* AC97 Controller */ 0, /* Timer Counter 0, 1 and 2 */ 0, /* Pulse Width Modulation Controller */ 3, /* Ethernet */ 0, 0, /* 2D Graphic Engine */ - 3, /* USB Device Port */ + 2, /* USB Device Port */ 0, /* Image Sensor Interface */ 3, /* LDC Controller */ 0, /* DMA Controller */ 0, - 3, /* USB Host port */ + 2, /* USB Host port */ 0, /* Advanced Interrupt Controller (IRQ0) */ 0, /* Advanced Interrupt Controller (IRQ1) */ }; diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index ac329a98e95..0b12e1adcc8 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -12,6 +12,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/i2c-gpio.h> @@ -32,7 +33,7 @@ * -------------------------------------------------------------------- */ #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) -static u64 ohci_dmamask = 0xffffffffUL; +static u64 ohci_dmamask = DMA_BIT_MASK(32); static struct at91_usbh_data usbh_data; static struct resource usbh_resources[] = { @@ -53,7 +54,7 @@ static struct platform_device at91_usbh_device = { .id = -1, .dev = { .dma_mask = &ohci_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &usbh_data, }, .resource = usbh_resources, @@ -136,7 +137,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE) -static u64 eth_dmamask = 0xffffffffUL; +static u64 eth_dmamask = DMA_BIT_MASK(32); static struct at91_eth_data eth_data; static struct resource eth_resources[] = { @@ -157,7 +158,7 @@ static struct platform_device at91sam9263_eth_device = { .id = -1, .dev = { .dma_mask = ð_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = ð_data, }, .resource = eth_resources, @@ -210,7 +211,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc0_data, mmc1_data; static struct resource mmc0_resources[] = { @@ -231,7 +232,7 @@ static struct platform_device at91sam9263_mmc0_device = { .id = 0, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc0_data, }, .resource = mmc0_resources, @@ -256,7 +257,7 @@ static struct platform_device at91sam9263_mmc1_device = { .id = 1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc1_data, }, .resource = mmc1_resources, @@ -382,7 +383,7 @@ void __init at91_add_device_nand(struct at91_nand_data *data) return; csa = at91_sys_read(AT91_MATRIX_EBI0CSA); - at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC); + at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA); /* set the bus interface characteristics */ at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) @@ -500,7 +501,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi0_resources[] = { [0] = { @@ -520,7 +521,7 @@ static struct platform_device at91sam9263_spi0_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi0_resources, .num_resources = ARRAY_SIZE(spi0_resources), @@ -546,7 +547,7 @@ static struct platform_device at91sam9263_spi1_device = { .id = 1, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi1_resources, .num_resources = ARRAY_SIZE(spi1_resources), @@ -612,7 +613,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE) -static u64 ac97_dmamask = 0xffffffffUL; +static u64 ac97_dmamask = DMA_BIT_MASK(32); static struct atmel_ac97_data ac97_data; static struct resource ac97_resources[] = { @@ -633,7 +634,7 @@ static struct platform_device at91sam9263_ac97_device = { .id = 1, .dev = { .dma_mask = &ac97_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &ac97_data, }, .resource = ac97_resources, @@ -667,7 +668,7 @@ void __init at91_add_device_ac97(struct atmel_ac97_data *data) {} * -------------------------------------------------------------------- */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) -static u64 lcdc_dmamask = 0xffffffffUL; +static u64 lcdc_dmamask = DMA_BIT_MASK(32); static struct atmel_lcdfb_info lcdc_data; static struct resource lcdc_resources[] = { @@ -688,7 +689,7 @@ static struct platform_device at91_lcdc_device = { .id = 0, .dev = { .dma_mask = &lcdc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &lcdc_data, }, .resource = lcdc_resources, @@ -732,24 +733,242 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} /* -------------------------------------------------------------------- - * LEDs + * Image Sensor Interface * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +#if defined(CONFIG_VIDEO_AT91_ISI) || defined(CONFIG_VIDEO_AT91_ISI_MODULE) -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +struct resource isi_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_ISI, + .end = AT91SAM9263_BASE_ISI + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_ISI, + .end = AT91SAM9263_ID_ISI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_isi_device = { + .name = "at91_isi", + .id = -1, + .resource = isi_resources, + .num_resources = ARRAY_SIZE(isi_resources), +}; + +void __init at91_add_device_isi(void) +{ + at91_set_A_periph(AT91_PIN_PE0, 0); /* ISI_D0 */ + at91_set_A_periph(AT91_PIN_PE1, 0); /* ISI_D1 */ + at91_set_A_periph(AT91_PIN_PE2, 0); /* ISI_D2 */ + at91_set_A_periph(AT91_PIN_PE3, 0); /* ISI_D3 */ + at91_set_A_periph(AT91_PIN_PE4, 0); /* ISI_D4 */ + at91_set_A_periph(AT91_PIN_PE5, 0); /* ISI_D5 */ + at91_set_A_periph(AT91_PIN_PE6, 0); /* ISI_D6 */ + at91_set_A_periph(AT91_PIN_PE7, 0); /* ISI_D7 */ + at91_set_A_periph(AT91_PIN_PE8, 0); /* ISI_PCK */ + at91_set_A_periph(AT91_PIN_PE9, 0); /* ISI_HSYNC */ + at91_set_A_periph(AT91_PIN_PE10, 0); /* ISI_VSYNC */ + at91_set_B_periph(AT91_PIN_PE11, 0); /* ISI_MCK (PCK3) */ + at91_set_B_periph(AT91_PIN_PE12, 0); /* ISI_PD8 */ + at91_set_B_periph(AT91_PIN_PE13, 0); /* ISI_PD9 */ + at91_set_B_periph(AT91_PIN_PE14, 0); /* ISI_PD10 */ + at91_set_B_periph(AT91_PIN_PE15, 0); /* ISI_PD11 */ +} +#else +void __init at91_add_device_isi(void) {} +#endif + + +/* -------------------------------------------------------------------- + * RTT + * -------------------------------------------------------------------- */ + +static struct resource rtt0_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT0, + .end = AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9263_rtt0_device = { + .name = "at91_rtt", + .id = 0, + .resource = rtt0_resources, + .num_resources = ARRAY_SIZE(rtt0_resources), +}; + +static struct resource rtt1_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT1, + .end = AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9263_rtt1_device = { + .name = "at91_rtt", + .id = 1, + .resource = rtt1_resources, + .num_resources = ARRAY_SIZE(rtt1_resources), +}; + +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91sam9263_rtt0_device); + platform_device_register(&at91sam9263_rtt1_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9263_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9263_wdt_device); +} +#else +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_SSC0, + .end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_SSC0, + .end = AT91SAM9263_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PB0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PB1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PB2, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PB3, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PB4, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PB5, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_SSC1, + .end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_SSC1, + .end = AT91SAM9263_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PB6, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PB7, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PB8, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PB9, 1); + if (pins & ATMEL_SSC_RK) + at91_set_A_periph(AT91_PIN_PB10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_A_periph(AT91_PIN_PB11, 1); +} + +/* + * Return the device node so that board init code can use it as the + * parent for the device node reflecting how it's used on this board. + * + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9263_ID_SSC0: + pdev = &at91sam9263_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9263_ID_SSC1: + pdev = &at91sam9263_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + default: + return; + } - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; + platform_device_register(pdev); } + #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -778,12 +997,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9263_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -813,23 +1035,29 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9263_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */ - at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */ } static struct resource uart1_resources[] = { @@ -850,23 +1078,29 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9263_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */ - at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */ - at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */ } static struct resource uart2_resources[] = { @@ -887,29 +1121,35 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9263_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */ - at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */ - at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -917,17 +1157,17 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9263_uart0_device; at91_clock_associate("usart0_clk", &at91sam9263_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9263_uart1_device; at91_clock_associate("usart1_clk", &at91sam9263_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9263_uart2_device; at91_clock_associate("usart2_clk", &at91sam9263_uart2_device.dev, "usart"); break; @@ -949,6 +1189,48 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9263_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9263_ID_US0: + pdev = &at91sam9263_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9263_ID_US1: + pdev = &at91sam9263_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9263_ID_US2: + pdev = &at91sam9263_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -960,6 +1242,8 @@ void __init at91_add_device_serial(void) } #else void __init at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif @@ -971,6 +1255,8 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; } diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 2bd60a3dc62..f43b5c33e45 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -9,6 +9,7 @@ #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/i2c-gpio.h> @@ -29,7 +30,7 @@ * -------------------------------------------------------------------- */ #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) -static u64 mmc_dmamask = 0xffffffffUL; +static u64 mmc_dmamask = DMA_BIT_MASK(32); static struct at91_mmc_data mmc_data; static struct resource mmc_resources[] = { @@ -50,7 +51,7 @@ static struct platform_device at91sam9rl_mmc_device = { .id = -1, .dev = { .dma_mask = &mmc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &mmc_data, }, .resource = mmc_resources, @@ -247,7 +248,7 @@ void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) -static u64 spi_dmamask = 0xffffffffUL; +static u64 spi_dmamask = DMA_BIT_MASK(32); static struct resource spi_resources[] = { [0] = { @@ -267,7 +268,7 @@ static struct platform_device at91sam9rl_spi_device = { .id = 0, .dev = { .dma_mask = &spi_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), }, .resource = spi_resources, .num_resources = ARRAY_SIZE(spi_resources), @@ -312,7 +313,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) * -------------------------------------------------------------------- */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) -static u64 lcdc_dmamask = 0xffffffffUL; +static u64 lcdc_dmamask = DMA_BIT_MASK(32); static struct atmel_lcdfb_info lcdc_data; static struct resource lcdc_resources[] = { @@ -340,7 +341,7 @@ static struct platform_device at91_lcdc_device = { .id = 0, .dev = { .dma_mask = &lcdc_dmamask, - .coherent_dma_mask = 0xffffffff, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &lcdc_data, }, .resource = lcdc_resources, @@ -384,24 +385,196 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} /* -------------------------------------------------------------------- - * LEDs + * RTC * -------------------------------------------------------------------- */ -#if defined(CONFIG_LEDS) -u8 at91_leds_cpu; -u8 at91_leds_timer; +#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE) +static struct platform_device at91sam9rl_rtc_device = { + .name = "at91_rtc", + .id = -1, + .num_resources = 0, +}; -void __init at91_init_leds(u8 cpu_led, u8 timer_led) +static void __init at91_add_device_rtc(void) { - /* Enable GPIO to access the LEDs */ - at91_set_gpio_output(cpu_led, 1); - at91_set_gpio_output(timer_led, 1); + platform_device_register(&at91sam9rl_rtc_device); +} +#else +static void __init at91_add_device_rtc(void) {} +#endif + + +/* -------------------------------------------------------------------- + * RTT + * -------------------------------------------------------------------- */ + +static struct resource rtt_resources[] = { + { + .start = AT91_BASE_SYS + AT91_RTT, + .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device at91sam9rl_rtt_device = { + .name = "at91_rtt", + .id = -1, + .resource = rtt_resources, + .num_resources = ARRAY_SIZE(rtt_resources), +}; - at91_leds_cpu = cpu_led; - at91_leds_timer = timer_led; +static void __init at91_add_device_rtt(void) +{ + platform_device_register(&at91sam9rl_rtt_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) +static struct platform_device at91sam9rl_wdt_device = { + .name = "at91_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init at91_add_device_watchdog(void) +{ + platform_device_register(&at91sam9rl_wdt_device); } #else -void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +static void __init at91_add_device_watchdog(void) {} +#endif + + +/* -------------------------------------------------------------------- + * SSC -- Synchronous Serial Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) +static u64 ssc0_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc0_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_SSC0, + .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_SSC0, + .end = AT91SAM9RL_ID_SSC0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_ssc0_device = { + .name = "ssc", + .id = 0, + .dev = { + .dma_mask = &ssc0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc0_resources, + .num_resources = ARRAY_SIZE(ssc0_resources), +}; + +static inline void configure_ssc0_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_A_periph(AT91_PIN_PC0, 1); + if (pins & ATMEL_SSC_TK) + at91_set_A_periph(AT91_PIN_PC1, 1); + if (pins & ATMEL_SSC_TD) + at91_set_A_periph(AT91_PIN_PA15, 1); + if (pins & ATMEL_SSC_RD) + at91_set_A_periph(AT91_PIN_PA16, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA10, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA22, 1); +} + +static u64 ssc1_dmamask = DMA_BIT_MASK(32); + +static struct resource ssc1_resources[] = { + [0] = { + .start = AT91SAM9RL_BASE_SSC1, + .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_SSC1, + .end = AT91SAM9RL_ID_SSC1, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_ssc1_device = { + .name = "ssc", + .id = 1, + .dev = { + .dma_mask = &ssc1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = ssc1_resources, + .num_resources = ARRAY_SIZE(ssc1_resources), +}; + +static inline void configure_ssc1_pins(unsigned pins) +{ + if (pins & ATMEL_SSC_TF) + at91_set_B_periph(AT91_PIN_PA29, 1); + if (pins & ATMEL_SSC_TK) + at91_set_B_periph(AT91_PIN_PA30, 1); + if (pins & ATMEL_SSC_TD) + at91_set_B_periph(AT91_PIN_PA13, 1); + if (pins & ATMEL_SSC_RD) + at91_set_B_periph(AT91_PIN_PA14, 1); + if (pins & ATMEL_SSC_RK) + at91_set_B_periph(AT91_PIN_PA9, 1); + if (pins & ATMEL_SSC_RF) + at91_set_B_periph(AT91_PIN_PA8, 1); +} + +/* + * Return the device node so that board init code can use it as the + * parent for the device node reflecting how it's used on this board. + * + * SSC controllers are accessed through library code, instead of any + * kind of all-singing/all-dancing driver. For example one could be + * used by a particular I2S audio codec's driver, while another one + * on the same system might be used by a custom data capture driver. + */ +void __init at91_add_device_ssc(unsigned id, unsigned pins) +{ + struct platform_device *pdev; + + /* + * NOTE: caller is responsible for passing information matching + * "pins" to whatever will be using each particular controller. + */ + switch (id) { + case AT91SAM9RL_ID_SSC0: + pdev = &at91sam9rl_ssc0_device; + configure_ssc0_pins(pins); + at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); + break; + case AT91SAM9RL_ID_SSC1: + pdev = &at91sam9rl_ssc1_device; + configure_ssc1_pins(pins); + at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); + break; + default: + return; + } + + platform_device_register(pdev); +} + +#else +void __init at91_add_device_ssc(unsigned id, unsigned pins) {} #endif @@ -429,12 +602,15 @@ static struct atmel_uart_data dbgu_data = { .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), }; +static u64 dbgu_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9rl_dbgu_device = { .name = "atmel_usart", .id = 0, .dev = { - .platform_data = &dbgu_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &dbgu_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &dbgu_data, }, .resource = dbgu_resources, .num_resources = ARRAY_SIZE(dbgu_resources), @@ -464,23 +640,37 @@ static struct atmel_uart_data uart0_data = { .use_dma_rx = 1, }; +static u64 uart0_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9rl_uart0_device = { .name = "atmel_usart", .id = 1, .dev = { - .platform_data = &uart0_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart0_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart0_data, }, .resource = uart0_resources, .num_resources = ARRAY_SIZE(uart0_resources), }; -static inline void configure_usart0_pins(void) +static inline void configure_usart0_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */ at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */ - at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */ - at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */ + if (pins & ATMEL_UART_DSR) + at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */ + if (pins & ATMEL_UART_DTR) + at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */ + if (pins & ATMEL_UART_DCD) + at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */ + if (pins & ATMEL_UART_RI) + at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */ } static struct resource uart1_resources[] = { @@ -501,21 +691,29 @@ static struct atmel_uart_data uart1_data = { .use_dma_rx = 1, }; +static u64 uart1_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9rl_uart1_device = { .name = "atmel_usart", .id = 2, .dev = { - .platform_data = &uart1_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart1_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart1_data, }, .resource = uart1_resources, .num_resources = ARRAY_SIZE(uart1_resources), }; -static inline void configure_usart1_pins(void) +static inline void configure_usart1_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */ at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */ } static struct resource uart2_resources[] = { @@ -536,21 +734,29 @@ static struct atmel_uart_data uart2_data = { .use_dma_rx = 1, }; +static u64 uart2_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9rl_uart2_device = { .name = "atmel_usart", .id = 3, .dev = { - .platform_data = &uart2_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart2_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart2_data, }, .resource = uart2_resources, .num_resources = ARRAY_SIZE(uart2_resources), }; -static inline void configure_usart2_pins(void) +static inline void configure_usart2_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */ at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */ + + if (pins & ATMEL_UART_RTS) + at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */ + if (pins & ATMEL_UART_CTS) + at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */ } static struct resource uart3_resources[] = { @@ -571,27 +777,35 @@ static struct atmel_uart_data uart3_data = { .use_dma_rx = 1, }; +static u64 uart3_dmamask = DMA_BIT_MASK(32); + static struct platform_device at91sam9rl_uart3_device = { .name = "atmel_usart", .id = 4, .dev = { - .platform_data = &uart3_data, - .coherent_dma_mask = 0xffffffff, + .dma_mask = &uart3_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &uart3_data, }, .resource = uart3_resources, .num_resources = ARRAY_SIZE(uart3_resources), }; -static inline void configure_usart3_pins(void) +static inline void configure_usart3_pins(unsigned pins) { at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */ at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */ + + if (pins & ATMEL_UART_RTS) + at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */ + if (pins & ATMEL_UART_CTS) + at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */ } -struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ +static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ struct platform_device *atmel_default_console_device; /* the serial console device */ -void __init at91_init_serial(struct at91_uart_config *config) +void __init __deprecated at91_init_serial(struct at91_uart_config *config) { int i; @@ -599,22 +813,22 @@ void __init at91_init_serial(struct at91_uart_config *config) for (i = 0; i < config->nr_tty; i++) { switch (config->tty_map[i]) { case 0: - configure_usart0_pins(); + configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS); at91_uarts[i] = &at91sam9rl_uart0_device; at91_clock_associate("usart0_clk", &at91sam9rl_uart0_device.dev, "usart"); break; case 1: - configure_usart1_pins(); + configure_usart1_pins(0); at91_uarts[i] = &at91sam9rl_uart1_device; at91_clock_associate("usart1_clk", &at91sam9rl_uart1_device.dev, "usart"); break; case 2: - configure_usart2_pins(); + configure_usart2_pins(0); at91_uarts[i] = &at91sam9rl_uart2_device; at91_clock_associate("usart2_clk", &at91sam9rl_uart2_device.dev, "usart"); break; case 3: - configure_usart3_pins(); + configure_usart3_pins(0); at91_uarts[i] = &at91sam9rl_uart3_device; at91_clock_associate("usart3_clk", &at91sam9rl_uart3_device.dev, "usart"); break; @@ -636,6 +850,53 @@ void __init at91_init_serial(struct at91_uart_config *config) printk(KERN_INFO "AT91: No default serial console defined.\n"); } +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) +{ + struct platform_device *pdev; + + switch (id) { + case 0: /* DBGU */ + pdev = &at91sam9rl_dbgu_device; + configure_dbgu_pins(); + at91_clock_associate("mck", &pdev->dev, "usart"); + break; + case AT91SAM9RL_ID_US0: + pdev = &at91sam9rl_uart0_device; + configure_usart0_pins(pins); + at91_clock_associate("usart0_clk", &pdev->dev, "usart"); + break; + case AT91SAM9RL_ID_US1: + pdev = &at91sam9rl_uart1_device; + configure_usart1_pins(pins); + at91_clock_associate("usart1_clk", &pdev->dev, "usart"); + break; + case AT91SAM9RL_ID_US2: + pdev = &at91sam9rl_uart2_device; + configure_usart2_pins(pins); + at91_clock_associate("usart2_clk", &pdev->dev, "usart"); + break; + case AT91SAM9RL_ID_US3: + pdev = &at91sam9rl_uart3_device; + configure_usart3_pins(pins); + at91_clock_associate("usart3_clk", &pdev->dev, "usart"); + break; + default: + return; + } + pdev->id = portnr; /* update to mapped ID */ + + if (portnr < ATMEL_MAX_UART) + at91_uarts[portnr] = pdev; +} + +void __init at91_set_serial_console(unsigned portnr) +{ + if (portnr < ATMEL_MAX_UART) + atmel_default_console_device = at91_uarts[portnr]; + if (!atmel_default_console_device) + printk(KERN_INFO "AT91: No default serial console defined.\n"); +} + void __init at91_add_device_serial(void) { int i; @@ -646,7 +907,9 @@ void __init at91_add_device_serial(void) } } #else -void __init at91_init_serial(struct at91_uart_config *config) {} +void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} #endif @@ -659,6 +922,9 @@ void __init at91_add_device_serial(void) {} */ static int __init at91_add_standard_devices(void) { + at91_add_device_rtc(); + at91_add_device_rtt(); + at91_add_device_watchdog(); return 0; } diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c new file mode 100644 index 00000000000..18543713154 --- /dev/null +++ b/arch/arm/mach-at91/board-cap9adk.c @@ -0,0 +1,359 @@ +/* + * linux/arch/arm/mach-at91/board-cap9adk.c + * + * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> + * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> + * Copyright (C) 2005 SAN People + * Copyright (C) 2007 Atmel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> +#include <linux/fb.h> +#include <linux/mtd/physmap.h> + +#include <video/atmel_lcdc.h> + +#include <asm/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/arch/board.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91cap9_matrix.h> +#include <asm/arch/at91sam926x_mc.h> + +#include "generic.h" + + +static void __init cap9adk_map_io(void) +{ + /* Initialize processor: 12 MHz crystal */ + at91cap9_initialize(12000000); + + /* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */ + at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11); + /* ... POWER LED always on */ + at91_set_gpio_output(AT91_PIN_PC29, 1); + + /* Setup the serial ports and console */ + at91_register_uart(0, 0, 0); /* DBGU = ttyS0 */ + at91_set_serial_console(0); +} + +static void __init cap9adk_init_irq(void) +{ + at91cap9_init_interrupts(NULL); +} + + +/* + * USB Host port + */ +static struct at91_usbh_data __initdata cap9adk_usbh_data = { + .ports = 2, +}; + + +/* + * ADS7846 Touchscreen + */ +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) +static int ads7843_pendown_state(void) +{ + return !at91_get_gpio_value(AT91_PIN_PC4); /* Touchscreen PENIRQ */ +} + +static struct ads7846_platform_data ads_info = { + .model = 7843, + .x_min = 150, + .x_max = 3830, + .y_min = 190, + .y_max = 3830, + .vref_delay_usecs = 100, + .x_plate_ohms = 450, + .y_plate_ohms = 250, + .pressure_max = 15000, + .debounce_max = 1, + .debounce_rep = 0, + .debounce_tol = (~0), + .get_pendown_state = ads7843_pendown_state, +}; + +static void __init cap9adk_add_device_ts(void) +{ + at91_set_gpio_input(AT91_PIN_PC4, 1); /* Touchscreen PENIRQ */ + at91_set_gpio_input(AT91_PIN_PC5, 1); /* Touchscreen BUSY */ +} +#else +static void __init cap9adk_add_device_ts(void) {} +#endif + + +/* + * SPI devices. + */ +static struct spi_board_info cap9adk_spi_devices[] = { +#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) + { /* DataFlash card */ + .modalias = "mtd_dataflash", + .chip_select = 0, + .max_speed_hz = 15 * 1000 * 1000, + .bus_num = 0, + }, +#endif +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + { + .modalias = "ads7846", + .chip_select = 3, /* can be 2 or 3, depending on J2 jumper */ + .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ + .bus_num = 0, + .platform_data = &ads_info, + .irq = AT91_PIN_PC4, + }, +#endif +}; + + +/* + * MCI (SD/MMC) + */ +static struct at91_mmc_data __initdata cap9adk_mmc_data = { + .wire4 = 1, +// .det_pin = ... not connected +// .wp_pin = ... not connected +// .vcc_pin = ... not connected +}; + + +/* + * MACB Ethernet device + */ +static struct at91_eth_data __initdata cap9adk_macb_data = { + .is_rmii = 1, +}; + + +/* + * NAND flash + */ +static struct mtd_partition __initdata cap9adk_nand_partitions[] = { + { + .name = "NAND partition", + .offset = 0, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) +{ + *num_partitions = ARRAY_SIZE(cap9adk_nand_partitions); + return cap9adk_nand_partitions; +} + +static struct at91_nand_data __initdata cap9adk_nand_data = { + .ale = 21, + .cle = 22, +// .det_pin = ... not connected +// .rdy_pin = ... not connected + .enable_pin = AT91_PIN_PD15, + .partition_info = nand_partitions, +#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16) + .bus_width_16 = 1, +#else + .bus_width_16 = 0, +#endif +}; + + +/* + * NOR flash + */ +static struct mtd_partition cap9adk_nor_partitions[] = { + { + .name = "NOR partition", + .offset = 0, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct physmap_flash_data cap9adk_nor_data = { + .width = 2, + .parts = cap9adk_nor_partitions, + .nr_parts = ARRAY_SIZE(cap9adk_nor_partitions), +}; + +#define NOR_BASE AT91_CHIPSELECT_0 +#define NOR_SIZE 0x800000 + +static struct resource nor_flash_resources[] = { + { + .start = NOR_BASE, + .end = NOR_BASE + NOR_SIZE - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device cap9adk_nor_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &cap9adk_nor_data, + }, + .resource = nor_flash_resources, + .num_resources = ARRAY_SIZE(nor_flash_resources), +}; + +static __init void cap9adk_add_device_nor(void) +{ + unsigned long csa; + + csa = at91_sys_read(AT91_MATRIX_EBICSA); + at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V); + + /* set the bus interface characteristics */ + at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) + | AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2)); + + at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) + | AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10)); + + at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16)); + + at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE + | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE + | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1)); + + platform_device_register(&cap9adk_nor_flash); +} + + +/* + * LCD Controller + */ +#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) +static struct fb_videomode at91_tft_vga_modes[] = { + { + .name = "TX09D50VM1CCA @ 60", + .refresh = 60, + .xres = 240, .yres = 320, + .pixclock = KHZ2PICOS(4965), + + .left_margin = 1, .right_margin = 33, + .upper_margin = 1, .lower_margin = 0, + .hsync_len = 5, .vsync_len = 1, + + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED, + }, +}; + +static struct fb_monspecs at91fb_default_monspecs = { + .manufacturer = "HIT", + .monitor = "TX09D70VM1CCA", + + .modedb = at91_tft_vga_modes, + .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), + .hfmin = 15000, + .hfmax = 64000, + .vfmin = 50, + .vfmax = 150, +}; + +#define AT91CAP9_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ + | ATMEL_LCDC_DISTYPE_TFT \ + | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) + +static void at91_lcdc_power_control(int on) +{ + if (on) + at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */ + else + at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */ +} + +/* Driver datas */ +static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = { + .default_bpp = 16, + .default_dmacon = ATMEL_LCDC_DMAEN, + .default_lcdcon2 = AT91CAP9_DEFAULT_LCDCON2, + .default_monspecs = &at91fb_default_monspecs, + .atmel_lcdfb_power_control = at91_lcdc_power_control, + .guard_time = 1, +}; + +#else +static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data; +#endif + + +/* + * AC97 + */ +static struct atmel_ac97_data cap9adk_ac97_data = { +// .reset_pin = ... not connected +}; + + +static void __init cap9adk_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* USB Host */ + set_irq_type(AT91CAP9_ID_UHP, IRQT_HIGH); + at91_add_device_usbh(&cap9adk_usbh_data); + /* SPI */ + at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices)); + /* Touchscreen */ + cap9adk_add_device_ts(); + /* MMC */ + at91_add_device_mmc(1, &cap9adk_mmc_data); + /* Ethernet */ + at91_add_device_eth(&cap9adk_macb_data); + /* NAND */ + at91_add_device_nand(&cap9adk_nand_data); + /* NOR Flash */ + cap9adk_add_device_nor(); + /* I2C */ + at91_add_device_i2c(NULL, 0); + /* LCD Controller */ + set_irq_type(AT91CAP9_ID_LCDC, IRQT_HIGH); + at91_add_device_lcdc(&cap9adk_lcdc_data); + /* AC97 */ + at91_add_device_ac97(&cap9adk_ac97_data); +} + +MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK") + /* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */ + .phys_io = AT91_BASE_SYS, + .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, + .boot_params = AT91_SDRAM_BASE + 0x100, + .timer = &at91sam926x_timer, + .map_io = cap9adk_map_io, + .init_irq = cap9adk_init_irq, + .init_machine = cap9adk_board_init, +MACHINE_END diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c index d0aa20c9383..0e2a11fc5bb 100644 --- a/arch/arm/mach-at91/board-csb337.c +++ b/arch/arm/mach-at91/board-csb337.c @@ -25,6 +25,8 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/mtd/physmap.h> +#include <linux/input.h> +#include <linux/gpio_keys.h> #include <asm/hardware.h> #include <asm/setup.h> @@ -156,6 +158,85 @@ static struct platform_device csb_flash = { .num_resources = ARRAY_SIZE(csb_flash_resources), }; +/* + * GPIO Buttons (on CSB300) + */ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button csb300_buttons[] = { + { + .gpio = AT91_PIN_PB29, + .code = BTN_0, + .desc = "sw0", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PB28, + .code = BTN_1, + .desc = "sw1", + .active_low = 1, + .wakeup = 1, + }, + { + .gpio = AT91_PIN_PA21, + .code = BTN_2, + .desc = "sw2", + .active_low = 1, + .wakeup = 1, + } +}; + +static struct gpio_keys_platform_data csb300_button_data = { + .buttons = csb300_buttons, + .nbuttons = ARRAY_SIZE(csb300_buttons), +}; + +static struct platform_device csb300_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &csb300_button_data, + } +}; + +static void __init csb300_add_device_buttons(void) +{ + at91_set_gpio_input(AT91_PIN_PB29, 0); /* sw0 */ + at91_set_deglitch(AT91_PIN_PB29, 1); + at91_set_gpio_input(AT91_PIN_PB28, 0); /* sw1 */ + at91_set_deglitch(AT91_PIN_PB28, 1); + at91_set_gpio_input(AT91_PIN_PA21, 0); /* sw2 */ + at91_set_deglitch(AT91_PIN_PA21, 1); + + platform_device_register(&csb300_button_device); +} +#else +static void __init csb300_add_device_buttons(void) {} +#endif + +static struct gpio_led csb_leds[] = { + { /* "led0", yellow */ + .name = "led0", + .gpio = AT91_PIN_PB2, + .active_low = 1, + .default_trigger = "heartbeat", + }, + { /* "led1", green */ + .name = "led1", + .gpio = AT91_PIN_PB1, + .active_low = 1, + .default_trigger = "mmc0", + }, + { /* "led2", yellow */ + .name = "led2", + .gpio = AT91_PIN_PB0, + .active_low = 1, + .default_trigger = "ide-disk", + }, +}; + + static void __init csb337_board_init(void) { /* Serial */ @@ -177,6 +258,10 @@ static void __init csb337_board_init(void) at91_add_device_mmc(0, &csb337_mmc_data); /* NOR flash */ platform_device_register(&csb_flash); + /* LEDs */ + at91_gpio_leds(csb_leds, ARRAY_SIZE(csb_leds)); + /* Switches on CSB300 */ + csb300_add_device_buttons(); } MACHINE_START(CSB337, "Cogent CSB337") diff --git a/arch/arm/mach-at91/board-dk.c b/arch/arm/mach-at91/board-dk.c index 40c9e433170..0a897efeba8 100644 --- a/arch/arm/mach-at91/board-dk.c +++ b/arch/arm/mach-at91/board-dk.c @@ -183,6 +183,14 @@ static struct platform_device dk_flash = { .num_resources = 1, }; +static struct gpio_led dk_leds[] = { + { + .name = "led0", + .gpio = AT91_PIN_PB2, + .active_low = 1, + .default_trigger = "heartbeat", + } +}; static void __init dk_board_init(void) { @@ -213,6 +221,8 @@ static void __init dk_board_init(void) at91_add_device_nand(&dk_nand_data); /* NOR Flash */ platform_device_register(&dk_flash); + /* LEDs */ + at91_gpio_leds(dk_leds, ARRAY_SIZE(dk_leds)); /* VGA */ // dk_add_device_video(); } diff --git a/arch/arm/mach-at91/board-ek.c b/arch/arm/mach-at91/board-ek.c index 53a5ef9e72e..0574e50a30d 100644 --- a/arch/arm/mach-at91/board-ek.c +++ b/arch/arm/mach-at91/board-ek.c @@ -141,6 +141,25 @@ static struct platform_device ek_flash = { .num_resources = 1, }; +static struct gpio_led ek_leds[] = { + { /* "user led 1", DS2 */ + .name = "green", + .gpio = AT91_PIN_PB0, + .active_low = 1, + .default_trigger = "mmc0", + }, + { /* "user led 2", DS4 */ + .name = "yellow", + .gpio = AT91_PIN_PB1, + .active_low = 1, + .default_trigger = "heartbeat", + }, + { /* "user led 3", DS6 */ + .name = "red", + .gpio = AT91_PIN_PB2, + .active_low = 1, + } +}; static void __init ek_board_init(void) { @@ -167,6 +186,8 @@ static void __init ek_board_init(void) #endif /* NOR Flash */ platform_device_register(&ek_flash); + /* LEDs */ + at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); /* VGA */ // ek_add_device_video(); } diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index 550ae59a3ac..aa29ea58ca0 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -280,6 +280,68 @@ static struct spi_board_info ek_spi_devices[] = { * LCD Controller */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) + +#if defined(CONFIG_FB_ATMEL_STN) + +/* STN */ +static struct fb_videomode at91_stn_modes[] = { + { + .name = "SP06Q002 @ 75", + .refresh = 75, + .xres = 320, .yres = 240, + .pixclock = KHZ2PICOS(1440), + + .left_margin = 1, .right_margin = 1, + .upper_margin = 0, .lower_margin = 0, + .hsync_len = 1, .vsync_len = 1, + + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .vmode = FB_VMODE_NONINTERLACED, + }, +}; + +static struct fb_monspecs at91fb_default_stn_monspecs = { + .manufacturer = "HIT", + .monitor = "SP06Q002", + + .modedb = at91_stn_modes, + .modedb_len = ARRAY_SIZE(at91_stn_modes), + .hfmin = 15000, + .hfmax = 64000, + .vfmin = 50, + .vfmax = 150, +}; + +#define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ + | ATMEL_LCDC_DISTYPE_STNMONO \ + | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \ + | ATMEL_LCDC_IFWIDTH_4 \ + | ATMEL_LCDC_SCANMOD_SINGLE) + +static void at91_lcdc_stn_power_control(int on) +{ + /* backlight */ + if (on) { /* power up */ + at91_set_gpio_value(AT91_PIN_PC14, 0); + at91_set_gpio_value(AT91_PIN_PC15, 0); + } else { /* power down */ + at91_set_gpio_value(AT91_PIN_PC14, 1); + at91_set_gpio_value(AT91_PIN_PC15, 1); + } +} + +static struct atmel_lcdfb_info __initdata ek_lcdc_data = { + .default_bpp = 1, + .default_dmacon = ATMEL_LCDC_DMAEN, + .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2, + .default_monspecs = &at91fb_default_stn_monspecs, + .atmel_lcdfb_power_control = at91_lcdc_stn_power_control, + .guard_time = 1, +}; + +#else + +/* TFT */ static struct fb_videomode at91_tft_vga_modes[] = { { .name = "TX09D50VM1CCA @ 60", @@ -296,7 +358,7 @@ static struct fb_videomode at91_tft_vga_modes[] = { }, }; -static struct fb_monspecs at91fb_default_monspecs = { +static struct fb_monspecs at91fb_default_tft_monspecs = { .manufacturer = "HIT", .monitor = "TX09D50VM1CCA", @@ -308,11 +370,11 @@ static struct fb_monspecs at91fb_default_monspecs = { .vfmax = 150, }; -#define AT91SAM9261_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ +#define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ | ATMEL_LCDC_DISTYPE_TFT \ | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) -static void at91_lcdc_power_control(int on) +static void at91_lcdc_tft_power_control(int on) { if (on) at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */ @@ -320,15 +382,15 @@ static void at91_lcdc_power_control(int on) at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */ } -/* Driver datas */ static struct atmel_lcdfb_info __initdata ek_lcdc_data = { .default_bpp = 16, .default_dmacon = ATMEL_LCDC_DMAEN, - .default_lcdcon2 = AT91SAM9261_DEFAULT_LCDCON2, - .default_monspecs = &at91fb_default_monspecs, - .atmel_lcdfb_power_control = at91_lcdc_power_control, + .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2, + .default_monspecs = &at91fb_default_tft_monspecs, + .atmel_lcdfb_power_control = at91_lcdc_tft_power_control, .guard_time = 1, }; +#endif #else static struct atmel_lcdfb_info __initdata ek_lcdc_data; @@ -342,25 +404,25 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data; static struct gpio_keys_button ek_buttons[] = { { .gpio = AT91_PIN_PA27, - .keycode = BTN_0, + .code = BTN_0, .desc = "Button 0", .active_low = 1, }, { .gpio = AT91_PIN_PA26, - .keycode = BTN_1, + .code = BTN_1, .desc = "Button 1", .active_low = 1, }, { .gpio = AT91_PIN_PA25, - .keycode = BTN_2, + .code = BTN_2, .desc = "Button 2", .active_low = 1, }, { .gpio = AT91_PIN_PA24, - .keycode = BTN_3, + .code = BTN_3, .desc = "Button 3", .active_low = 1, } diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index ab9dcc07545..f09347a86e7 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -27,6 +27,8 @@ #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/fb.h> +#include <linux/gpio_keys.h> +#include <linux/input.h> #include <video/atmel_lcdc.h> @@ -163,6 +165,7 @@ static struct at91_mmc_data __initdata ek_mmc_data = { * MACB Ethernet device */ static struct at91_eth_data __initdata ek_macb_data = { + .phy_irq_pin = AT91_PIN_PE31, .is_rmii = 1, }; @@ -264,6 +267,55 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data; /* + * GPIO Buttons + */ +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +static struct gpio_keys_button ek_buttons[] = { + { /* BP1, "leftclic" */ + .code = BTN_LEFT, + .gpio = AT91_PIN_PC5, + .active_low = 1, + .desc = "left_click", + .wakeup = 1, + }, + { /* BP2, "rightclic" */ + .code = BTN_RIGHT, + .gpio = AT91_PIN_PC4, + .active_low = 1, + .desc = "right_click", + .wakeup = 1, + }, +}; + +static struct gpio_keys_platform_data ek_button_data = { + .buttons = ek_buttons, + .nbuttons = ARRAY_SIZE(ek_buttons), +}; + +static struct platform_device ek_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &ek_button_data, + } +}; + +static void __init ek_add_device_buttons(void) +{ + at91_set_GPIO_periph(AT91_PIN_PC5, 0); /* left button */ + at91_set_deglitch(AT91_PIN_PC5, 1); + at91_set_GPIO_periph(AT91_PIN_PC4, 0); /* right button */ + at91_set_deglitch(AT91_PIN_PC4, 1); + + platform_device_register(&ek_button_device); +} +#else +static void __init ek_add_device_buttons(void) {} +#endif + + +/* * AC97 */ static struct atmel_ac97_data ek_ac97_data = { @@ -271,6 +323,30 @@ static struct atmel_ac97_data ek_ac97_data = { }; +/* + * LEDs ... these could all be PWM-driven, for variable brightness + */ +static struct gpio_led ek_leds[] = { + { /* "left" led, green, userled1, pwm1 */ + .name = "ds1", + .gpio = AT91_PIN_PB8, + .active_low = 1, + .default_trigger = "mmc0", + }, + { /* "right" led, green, userled2, pwm2 */ + .name = "ds2", + .gpio = AT91_PIN_PC29, + .active_low = 1, + .default_trigger = "nand-disk", + }, + { /* "power" led, yellow, pwm0 */ + .name = "ds3", + .gpio = AT91_PIN_PB7, + .default_trigger = "heartbeat", + }, +}; + + static void __init ek_board_init(void) { /* Serial */ @@ -294,8 +370,12 @@ static void __init ek_board_init(void) at91_add_device_i2c(NULL, 0); /* LCD Controller */ at91_add_device_lcdc(&ek_lcdc_data); + /* Push Buttons */ + ek_add_device_buttons(); /* AC97 */ at91_add_device_ac97(&ek_ac97_data); + /* LEDs */ + at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); } MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK") diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index 57c3b647ce8..ec76eeaafd4 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -574,6 +574,8 @@ int __init at91_clock_init(unsigned long main_clock) } else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263()) { uhpck.pmc_mask = AT91SAM926x_PMC_UHP; udpck.pmc_mask = AT91SAM926x_PMC_UDP; + } else if (cpu_is_at91cap9()) { + uhpck.pmc_mask = AT91CAP9_PMC_UHP; } at91_sys_write(AT91_CKGR_PLLBR, 0); diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index 77d4c0a3784..b5daf7f5e01 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -15,6 +15,7 @@ extern void __init at91sam9261_initialize(unsigned long main_clock); extern void __init at91sam9263_initialize(unsigned long main_clock); extern void __init at91sam9rl_initialize(unsigned long main_clock); extern void __init at91x40_initialize(unsigned long main_clock); +extern void __init at91cap9_initialize(unsigned long main_clock); /* Interrupts */ extern void __init at91rm9200_init_interrupts(unsigned int priority[]); @@ -23,6 +24,7 @@ extern void __init at91sam9261_init_interrupts(unsigned int priority[]); extern void __init at91sam9263_init_interrupts(unsigned int priority[]); extern void __init at91sam9rl_init_interrupts(unsigned int priority[]); extern void __init at91x40_init_interrupts(unsigned int priority[]); +extern void __init at91cap9_init_interrupts(unsigned int priority[]); extern void __init at91_aic_init(unsigned int priority[]); /* Timer */ diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index aa2d365c93f..6aeddd68d8a 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -13,6 +13,8 @@ #include <linux/errno.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <linux/kernel.h> #include <linux/list.h> #include <linux/module.h> @@ -414,6 +416,66 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) /*--------------------------------------------------------------------------*/ +#ifdef CONFIG_DEBUG_FS + +static int at91_gpio_show(struct seq_file *s, void *unused) +{ + int bank, j; + + /* print heading */ + seq_printf(s, "Pin\t"); + for (bank = 0; bank < gpio_banks; bank++) { + seq_printf(s, "PIO%c\t", 'A' + bank); + }; + seq_printf(s, "\n\n"); + + /* print pin status */ + for (j = 0; j < 32; j++) { + seq_printf(s, "%i:\t", j); + + for (bank = 0; bank < gpio_banks; bank++) { + unsigned pin = PIN_BASE + (32 * bank) + j; + void __iomem *pio = pin_to_controller(pin); + unsigned mask = pin_to_mask(pin); + + if (__raw_readl(pio + PIO_PSR) & mask) + seq_printf(s, "GPIO:%s", __raw_readl(pio + PIO_PDSR) & mask ? "1" : "0"); + else + seq_printf(s, "%s", __raw_readl(pio + PIO_ABSR) & mask ? "B" : "A"); + + seq_printf(s, "\t"); + } + + seq_printf(s, "\n"); + } + + return 0; +} + +static int at91_gpio_open(struct inode *inode, struct file *file) +{ + return single_open(file, at91_gpio_show, NULL); +} + +static const struct file_operations at91_gpio_operations = { + .open = at91_gpio_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init at91_gpio_debugfs_init(void) +{ + /* /sys/kernel/debug/at91_gpio */ + (void) debugfs_create_file("at91_gpio", S_IFREG | S_IRUGO, NULL, NULL, &at91_gpio_operations); + return 0; +} +postcore_initcall(at91_gpio_debugfs_init); + +#endif + +/*--------------------------------------------------------------------------*/ + /* * Called from the processor-specific init to enable GPIO interrupt support. */ diff --git a/arch/arm/mach-at91/leds.c b/arch/arm/mach-at91/leds.c index 0d514497398..9cdcda500fe 100644 --- a/arch/arm/mach-at91/leds.c +++ b/arch/arm/mach-at91/leds.c @@ -14,11 +14,62 @@ #include <linux/init.h> #include <asm/mach-types.h> -#include <asm/leds.h> #include <asm/arch/board.h> #include <asm/arch/gpio.h> +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_NEW_LEDS) + +#include <linux/platform_device.h> + +/* + * New cross-platform LED support. + */ + +static struct gpio_led_platform_data led_data; + +static struct platform_device at91_leds = { + .name = "leds-gpio", + .id = -1, + .dev.platform_data = &led_data, +}; + +void __init at91_gpio_leds(struct gpio_led *leds, int nr) +{ + int i; + + if (!nr) + return; + + for (i = 0; i < nr; i++) + at91_set_gpio_output(leds[i].gpio, leds[i].active_low); + + led_data.leds = leds; + led_data.num_leds = nr; + platform_device_register(&at91_leds); +} + +#else +void __init at91_gpio_leds(struct gpio_led *leds, int nr) {} +#endif + + +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_LEDS) + +#include <asm/leds.h> + +/* + * Old ARM-specific LED framework; not fully functional when generic time is + * in use. + */ + +static u8 at91_leds_cpu; +static u8 at91_leds_timer; + static inline void at91_led_on(unsigned int led) { at91_set_gpio_value(led, 0); @@ -93,3 +144,18 @@ static int __init leds_init(void) } __initcall(leds_init); + + +void __init at91_init_leds(u8 cpu_led, u8 timer_led) +{ + /* Enable GPIO to access the LEDs */ + at91_set_gpio_output(cpu_led, 1); + at91_set_gpio_output(timer_led, 1); + + at91_leds_cpu = cpu_led; + at91_leds_timer = timer_led; +} + +#else +void __init at91_init_leds(u8 cpu_led, u8 timer_led) {} +#endif diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 98cb6148291..4b120cc3613 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -80,6 +80,11 @@ static int at91_pm_verify_clocks(void) pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n"); return 0; } + } else if (cpu_is_at91cap9()) { + if ((scsr & AT91CAP9_PMC_UHP) != 0) { + pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n"); + return 0; + } } #ifdef CONFIG_AT91_PROGRAMMABLE_CLOCKS diff --git a/arch/arm/mach-clps711x/time.c b/arch/arm/mach-clps711x/time.c index f428af7545b..e5dc33f1f95 100644 --- a/arch/arm/mach-clps711x/time.c +++ b/arch/arm/mach-clps711x/time.c @@ -50,9 +50,7 @@ static unsigned long clps711x_gettimeoffset(void) static irqreturn_t p720t_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/arm/mach-clps7500/core.c b/arch/arm/mach-clps7500/core.c index 986205ec926..2ac63671ea5 100644 --- a/arch/arm/mach-clps7500/core.c +++ b/arch/arm/mach-clps7500/core.c @@ -298,8 +298,6 @@ extern unsigned long ioc_timer_gettimeoffset(void); static irqreturn_t clps7500_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - timer_tick(); /* Why not using do_leds interface?? */ @@ -313,8 +311,6 @@ clps7500_timer_interrupt(int irq, void *dev_id) } } - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c index 8c1b5690dfe..7710e14b526 100644 --- a/arch/arm/mach-ebsa110/core.c +++ b/arch/arm/mach-ebsa110/core.c @@ -178,8 +178,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id) { u32 count; - write_seqlock(&xtime_lock); - /* latch and read timer 1 */ __raw_writeb(0x40, PIT_CTRL); count = __raw_readb(PIT_T1); @@ -192,8 +190,6 @@ ebsa110_timer_interrupt(int irq, void *dev_id) timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index 70b2c780111..91f6a07a51d 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -3,6 +3,7 @@ * Core routines for Cirrus EP93xx chips. * * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> + * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org> * * Thanks go to Michael Burian and Ray Lehtiniemi for their key * role in the ep93xx linux community. @@ -21,7 +22,6 @@ #include <linux/serial.h> #include <linux/tty.h> #include <linux/bitops.h> -#include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/serial_core.h> #include <linux/device.h> @@ -99,8 +99,6 @@ static unsigned int last_jiffy_time; static int ep93xx_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - __raw_writel(1, EP93XX_TIMER1_CLEAR); while ((signed long) (__raw_readl(EP93XX_TIMER4_VALUE_LOW) - last_jiffy_time) @@ -109,8 +107,6 @@ static int ep93xx_timer_interrupt(int irq, void *dev_id) timer_tick(); } - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } @@ -157,38 +153,41 @@ static unsigned char gpio_int_enabled[3]; static unsigned char gpio_int_type1[3]; static unsigned char gpio_int_type2[3]; -static void update_gpio_int_params(int abf) +/* Port ordering is: A B F */ +static const u8 int_type1_register_offset[3] = { 0x90, 0xac, 0x4c }; +static const u8 int_type2_register_offset[3] = { 0x94, 0xb0, 0x50 }; +static const u8 eoi_register_offset[3] = { 0x98, 0xb4, 0x54 }; +static const u8 int_en_register_offset[3] = { 0x9c, 0xb8, 0x5c }; + +static void update_gpio_int_params(unsigned port) { - if (abf == 0) { - __raw_writeb(0, EP93XX_GPIO_A_INT_ENABLE); - __raw_writeb(gpio_int_type2[0], EP93XX_GPIO_A_INT_TYPE2); - __raw_writeb(gpio_int_type1[0], EP93XX_GPIO_A_INT_TYPE1); - __raw_writeb(gpio_int_unmasked[0] & gpio_int_enabled[0], EP93XX_GPIO_A_INT_ENABLE); - } else if (abf == 1) { - __raw_writeb(0, EP93XX_GPIO_B_INT_ENABLE); - __raw_writeb(gpio_int_type2[1], EP93XX_GPIO_B_INT_TYPE2); - __raw_writeb(gpio_int_type1[1], EP93XX_GPIO_B_INT_TYPE1); - __raw_writeb(gpio_int_unmasked[1] & gpio_int_enabled[1], EP93XX_GPIO_B_INT_ENABLE); - } else if (abf == 2) { - __raw_writeb(0, EP93XX_GPIO_F_INT_ENABLE); - __raw_writeb(gpio_int_type2[2], EP93XX_GPIO_F_INT_TYPE2); - __raw_writeb(gpio_int_type1[2], EP93XX_GPIO_F_INT_TYPE1); - __raw_writeb(gpio_int_unmasked[2] & gpio_int_enabled[2], EP93XX_GPIO_F_INT_ENABLE); - } else { - BUG(); - } -} + BUG_ON(port > 2); + __raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port])); -static unsigned char data_register_offset[8] = { - 0x00, 0x04, 0x08, 0x0c, 0x20, 0x30, 0x38, 0x40, + __raw_writeb(gpio_int_type2[port], + EP93XX_GPIO_REG(int_type2_register_offset[port])); + + __raw_writeb(gpio_int_type1[port], + EP93XX_GPIO_REG(int_type1_register_offset[port])); + + __raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port], + EP93XX_GPIO_REG(int_en_register_offset[port])); +} + +/* Port ordering is: A B F D E C G H */ +static const u8 data_register_offset[8] = { + 0x00, 0x04, 0x30, 0x0c, 0x20, 0x08, 0x38, 0x40, }; -static unsigned char data_direction_register_offset[8] = { - 0x10, 0x14, 0x18, 0x1c, 0x24, 0x34, 0x3c, 0x44, +static const u8 data_direction_register_offset[8] = { + 0x10, 0x14, 0x34, 0x1c, 0x24, 0x18, 0x3c, 0x44, }; -void gpio_line_config(int line, int direction) +#define GPIO_IN 0 +#define GPIO_OUT 1 + +static void ep93xx_gpio_set_direction(unsigned line, int direction) { unsigned int data_direction_register; unsigned long flags; @@ -199,14 +198,10 @@ void gpio_line_config(int line, int direction) local_irq_save(flags); if (direction == GPIO_OUT) { - if (line >= 0 && line < 16) { - /* Port A/B. */ + if (line >= 0 && line <= EP93XX_GPIO_LINE_MAX_IRQ) { + /* Port A/B/F */ gpio_int_unmasked[line >> 3] &= ~(1 << (line & 7)); update_gpio_int_params(line >> 3); - } else if (line >= 40 && line < 48) { - /* Port F. */ - gpio_int_unmasked[2] &= ~(1 << (line & 7)); - update_gpio_int_params(2); } v = __raw_readb(data_direction_register); @@ -219,39 +214,58 @@ void gpio_line_config(int line, int direction) } local_irq_restore(flags); } -EXPORT_SYMBOL(gpio_line_config); -int gpio_line_get(int line) +int gpio_direction_input(unsigned gpio) +{ + if (gpio > EP93XX_GPIO_LINE_MAX) + return -EINVAL; + + ep93xx_gpio_set_direction(gpio, GPIO_IN); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_input); + +int gpio_direction_output(unsigned gpio, int value) +{ + if (gpio > EP93XX_GPIO_LINE_MAX) + return -EINVAL; + + gpio_set_value(gpio, value); + ep93xx_gpio_set_direction(gpio, GPIO_OUT); + + return 0; +} +EXPORT_SYMBOL(gpio_direction_output); + +int gpio_get_value(unsigned gpio) { unsigned int data_register; - data_register = EP93XX_GPIO_REG(data_register_offset[line >> 3]); + data_register = EP93XX_GPIO_REG(data_register_offset[gpio >> 3]); - return !!(__raw_readb(data_register) & (1 << (line & 7))); + return !!(__raw_readb(data_register) & (1 << (gpio & 7))); } -EXPORT_SYMBOL(gpio_line_get); +EXPORT_SYMBOL(gpio_get_value); -void gpio_line_set(int line, int value) +void gpio_set_value(unsigned gpio, int value) { unsigned int data_register; unsigned long flags; unsigned char v; - data_register = EP93XX_GPIO_REG(data_register_offset[line >> 3]); + data_register = EP93XX_GPIO_REG(data_register_offset[gpio >> 3]); local_irq_save(flags); - if (value == EP93XX_GPIO_HIGH) { - v = __raw_readb(data_register); - v |= 1 << (line & 7); - __raw_writeb(v, data_register); - } else if (value == EP93XX_GPIO_LOW) { - v = __raw_readb(data_register); - v &= ~(1 << (line & 7)); - __raw_writeb(v, data_register); - } + v = __raw_readb(data_register); + if (value) + v |= 1 << (gpio & 7); + else + v &= ~(1 << (gpio & 7)); + __raw_writeb(v, data_register); local_irq_restore(flags); } -EXPORT_SYMBOL(gpio_line_set); +EXPORT_SYMBOL(gpio_set_value); /************************************************************************* @@ -265,47 +279,67 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc) status = __raw_readb(EP93XX_GPIO_A_INT_STATUS); for (i = 0; i < 8; i++) { if (status & (1 << i)) { - desc = irq_desc + IRQ_EP93XX_GPIO(0) + i; - desc_handle_irq(IRQ_EP93XX_GPIO(0) + i, desc); + int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i; + desc = irq_desc + gpio_irq; + desc_handle_irq(gpio_irq, desc); } } status = __raw_readb(EP93XX_GPIO_B_INT_STATUS); for (i = 0; i < 8; i++) { if (status & (1 << i)) { - desc = irq_desc + IRQ_EP93XX_GPIO(8) + i; - desc_handle_irq(IRQ_EP93XX_GPIO(8) + i, desc); + int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i; + desc = irq_desc + gpio_irq; + desc_handle_irq(gpio_irq, desc); } } } static void ep93xx_gpio_f_irq_handler(unsigned int irq, struct irq_desc *desc) { - int gpio_irq = IRQ_EP93XX_GPIO(16) + (((irq + 1) & 7) ^ 4); + /* + * map discontiguous hw irq range to continous sw irq range: + * + * IRQ_EP93XX_GPIO{0..7}MUX -> gpio_to_irq(EP93XX_GPIO_LINE_F({0..7}) + */ + int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */ + int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx; desc_handle_irq(gpio_irq, irq_desc + gpio_irq); } +static void ep93xx_gpio_irq_ack(unsigned int irq) +{ + int line = irq_to_gpio(irq); + int port = line >> 3; + int port_mask = 1 << (line & 7); + + if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQT_BOTHEDGE) { + gpio_int_type2[port] ^= port_mask; /* switch edge direction */ + update_gpio_int_params(port); + } + + __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port])); +} + static void ep93xx_gpio_irq_mask_ack(unsigned int irq) { - int line = irq - IRQ_EP93XX_GPIO(0); + int line = irq_to_gpio(irq); int port = line >> 3; + int port_mask = 1 << (line & 7); - gpio_int_unmasked[port] &= ~(1 << (line & 7)); + if ((irq_desc[irq].status & IRQ_TYPE_SENSE_MASK) == IRQT_BOTHEDGE) + gpio_int_type2[port] ^= port_mask; /* switch edge direction */ + + gpio_int_unmasked[port] &= ~port_mask; update_gpio_int_params(port); - if (port == 0) { - __raw_writel(1 << (line & 7), EP93XX_GPIO_A_INT_ACK); - } else if (port == 1) { - __raw_writel(1 << (line & 7), EP93XX_GPIO_B_INT_ACK); - } else if (port == 2) { - __raw_writel(1 << (line & 7), EP93XX_GPIO_F_INT_ACK); - } + __raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port])); } static void ep93xx_gpio_irq_mask(unsigned int irq) { - int line = irq - IRQ_EP93XX_GPIO(0); + int line = irq_to_gpio(irq); int port = line >> 3; gpio_int_unmasked[port] &= ~(1 << (line & 7)); @@ -314,7 +348,7 @@ static void ep93xx_gpio_irq_mask(unsigned int irq) static void ep93xx_gpio_irq_unmask(unsigned int irq) { - int line = irq - IRQ_EP93XX_GPIO(0); + int line = irq_to_gpio(irq); int port = line >> 3; gpio_int_unmasked[port] |= 1 << (line & 7); @@ -329,38 +363,54 @@ static void ep93xx_gpio_irq_unmask(unsigned int irq) */ static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type) { - int port; - int line; - - line = irq - IRQ_EP93XX_GPIO(0); - if (line >= 0 && line < 16) { - gpio_line_config(line, GPIO_IN); - } else { - gpio_line_config(EP93XX_GPIO_LINE_F(line-16), GPIO_IN); + struct irq_desc *desc = irq_desc + irq; + const int gpio = irq_to_gpio(irq); + const int port = gpio >> 3; + const int port_mask = 1 << (gpio & 7); + + ep93xx_gpio_set_direction(gpio, GPIO_IN); + + switch (type) { + case IRQT_RISING: + gpio_int_type1[port] |= port_mask; + gpio_int_type2[port] |= port_mask; + desc->handle_irq = handle_edge_irq; + break; + case IRQT_FALLING: + gpio_int_type1[port] |= port_mask; + gpio_int_type2[port] &= ~port_mask; + desc->handle_irq = handle_edge_irq; + break; + case IRQT_HIGH: + gpio_int_type1[port] &= ~port_mask; + gpio_int_type2[port] |= port_mask; + desc->handle_irq = handle_level_irq; + break; + case IRQT_LOW: + gpio_int_type1[port] &= ~port_mask; + gpio_int_type2[port] &= ~port_mask; + desc->handle_irq = handle_level_irq; + break; + case IRQT_BOTHEDGE: + gpio_int_type1[port] |= port_mask; + /* set initial polarity based on current input level */ + if (gpio_get_value(gpio)) + gpio_int_type2[port] &= ~port_mask; /* falling */ + else + gpio_int_type2[port] |= port_mask; /* rising */ + desc->handle_irq = handle_edge_irq; + break; + default: + pr_err("ep93xx: failed to set irq type %d for gpio %d\n", + type, gpio); + return -EINVAL; } - port = line >> 3; - line &= 7; - - if (type & IRQT_RISING) { - gpio_int_enabled[port] |= 1 << line; - gpio_int_type1[port] |= 1 << line; - gpio_int_type2[port] |= 1 << line; - } else if (type & IRQT_FALLING) { - gpio_int_enabled[port] |= 1 << line; - gpio_int_type1[port] |= 1 << line; - gpio_int_type2[port] &= ~(1 << line); - } else if (type & IRQT_HIGH) { - gpio_int_enabled[port] |= 1 << line; - gpio_int_type1[port] &= ~(1 << line); - gpio_int_type2[port] |= 1 << line; - } else if (type & IRQT_LOW) { - gpio_int_enabled[port] |= 1 << line; - gpio_int_type1[port] &= ~(1 << line); - gpio_int_type2[port] &= ~(1 << line); - } else { - gpio_int_enabled[port] &= ~(1 << line); - } + gpio_int_enabled[port] |= port_mask; + + desc->status &= ~IRQ_TYPE_SENSE_MASK; + desc->status |= type & IRQ_TYPE_SENSE_MASK; + update_gpio_int_params(port); return 0; @@ -368,7 +418,8 @@ static int ep93xx_gpio_irq_type(unsigned int irq, unsigned int type) static struct irq_chip ep93xx_gpio_irq_chip = { .name = "GPIO", - .ack = ep93xx_gpio_irq_mask_ack, + .ack = ep93xx_gpio_irq_ack, + .mask_ack = ep93xx_gpio_irq_mask_ack, .mask = ep93xx_gpio_irq_mask, .unmask = ep93xx_gpio_irq_unmask, .set_type = ep93xx_gpio_irq_type, @@ -377,15 +428,16 @@ static struct irq_chip ep93xx_gpio_irq_chip = { void __init ep93xx_init_irq(void) { - int irq; + int gpio_irq; vic_init((void *)EP93XX_VIC1_BASE, 0, EP93XX_VIC1_VALID_IRQ_MASK); vic_init((void *)EP93XX_VIC2_BASE, 32, EP93XX_VIC2_VALID_IRQ_MASK); - for (irq = IRQ_EP93XX_GPIO(0); irq <= IRQ_EP93XX_GPIO(23); irq++) { - set_irq_chip(irq, &ep93xx_gpio_irq_chip); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); + for (gpio_irq = gpio_to_irq(0); + gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) { + set_irq_chip(gpio_irq, &ep93xx_gpio_irq_chip); + set_irq_handler(gpio_irq, handle_level_irq); + set_irq_flags(gpio_irq, IRQF_VALID); } set_irq_chained_handler(IRQ_EP93XX_GPIO_AB, ep93xx_gpio_ab_irq_handler); diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c index 3a63941d43b..b2a21189dd8 100644 --- a/arch/arm/mach-footbridge/dc21285-timer.c +++ b/arch/arm/mach-footbridge/dc21285-timer.c @@ -30,14 +30,10 @@ static unsigned long timer1_gettimeoffset (void) static irqreturn_t timer1_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - *CSR_TIMER1_CLR = 0; timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c index d08d64139d0..a764e01d357 100644 --- a/arch/arm/mach-footbridge/isa-timer.c +++ b/arch/arm/mach-footbridge/isa-timer.c @@ -64,9 +64,7 @@ static unsigned long isa_gettimeoffset(void) static irqreturn_t isa_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/arm/mach-h720x/cpu-h7201.c b/arch/arm/mach-h720x/cpu-h7201.c index 9107b8e2ad6..c2a431f482f 100644 --- a/arch/arm/mach-h720x/cpu-h7201.c +++ b/arch/arm/mach-h720x/cpu-h7201.c @@ -29,13 +29,9 @@ static irqreturn_t h7201_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - CPU_REG (TIMER_VIRT, TIMER_TOPSTAT); timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-h720x/cpu-h7202.c b/arch/arm/mach-h720x/cpu-h7202.c index 0a1a25fb8ba..c627fa124eb 100644 --- a/arch/arm/mach-h720x/cpu-h7202.c +++ b/arch/arm/mach-h720x/cpu-h7202.c @@ -113,9 +113,7 @@ h7202_timerx_demux_handler(unsigned int irq_unused, struct irq_desc *desc) mask = CPU_REG (TIMER_VIRT, TIMER_TOPSTAT); if ( mask & TSTAT_T0INT ) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); if( mask == TSTAT_T0INT ) return; } diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index e9c82deb791..7fbbc17f8e8 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -250,8 +250,6 @@ unsigned long integrator_gettimeoffset(void) static irqreturn_t integrator_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - /* * clear the interrupt */ @@ -259,8 +257,6 @@ integrator_timer_interrupt(int irq, void *dev_id) timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index d4d8134ce56..d55fa4e9bb4 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -440,7 +440,7 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) return 1; } -static irqreturn_t v3_irq(int irq, void *devid) +static irqreturn_t v3_irq(int dummy, void *devid) { #ifdef CONFIG_DEBUG_LL struct pt_regs *regs = get_irq_regs(); @@ -448,8 +448,10 @@ static irqreturn_t v3_irq(int irq, void *devid) unsigned long instr = *(unsigned long *)pc; char buf[128]; - sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x ISTAT=%02x\n", irq, - pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255, + sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x " + "ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr, + __raw_readl(SC_LBFADDR), + __raw_readl(SC_LBFCODE) & 255, v3_readb(V3_LB_ISTAT)); printascii(buf); #endif diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index cb6ad211887..81cdc826720 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -206,8 +206,6 @@ unsigned long ixp2000_gettimeoffset (void) static int ixp2000_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - /* clear timer 1 */ ixp2000_reg_wrb(IXP2000_T1_CLR, 1); @@ -217,8 +215,6 @@ static int ixp2000_timer_interrupt(int irq, void *dev_id) next_jiffy_time -= ticks_per_jiffy; } - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c index 16356ffc86a..5fea5a13293 100644 --- a/arch/arm/mach-ixp23xx/core.c +++ b/arch/arm/mach-ixp23xx/core.c @@ -22,7 +22,6 @@ #include <linux/serial.h> #include <linux/tty.h> #include <linux/bitops.h> -#include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/serial_core.h> #include <linux/device.h> diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c index 7a85ced5671..d3a779a7a35 100644 --- a/arch/arm/mach-ixp23xx/espresso.c +++ b/arch/arm/mach-ixp23xx/espresso.c @@ -19,7 +19,6 @@ #include <linux/tty.h> #include <linux/bitops.h> #include <linux/ioport.h> -#include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/serial_core.h> #include <linux/device.h> @@ -40,7 +39,6 @@ #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <asm/mach/arch.h> -#include <asm/mach/irq.h> #include <asm/mach/pci.h> static int __init espresso_pci_init(void) diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c index c41a6b5a0ac..5c5d4d66dee 100644 --- a/arch/arm/mach-ixp23xx/ixdp2351.c +++ b/arch/arm/mach-ixp23xx/ixdp2351.c @@ -24,7 +24,6 @@ #include <linux/tty.h> #include <linux/bitops.h> #include <linux/ioport.h> -#include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/serial_core.h> #include <linux/device.h> @@ -44,7 +43,6 @@ #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <asm/mach/arch.h> -#include <asm/mach/irq.h> #include <asm/mach/pci.h> /* diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c index e35644961aa..f0f70ba1e46 100644 --- a/arch/arm/mach-ixp23xx/roadrunner.c +++ b/arch/arm/mach-ixp23xx/roadrunner.c @@ -23,7 +23,6 @@ #include <linux/tty.h> #include <linux/bitops.h> #include <linux/ioport.h> -#include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/serial_core.h> #include <linux/device.h> @@ -44,7 +43,6 @@ #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <asm/mach/arch.h> -#include <asm/mach/irq.h> #include <asm/mach/pci.h> /* diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c index d59b8dc7dc7..e38f45fa58a 100644 --- a/arch/arm/mach-ixp4xx/avila-setup.c +++ b/arch/arm/mach-ixp4xx/avila-setup.c @@ -18,6 +18,7 @@ #include <linux/tty.h> #include <linux/serial_8250.h> #include <linux/slab.h> +#include <linux/i2c-gpio.h> #include <asm/types.h> #include <asm/setup.h> @@ -47,18 +48,17 @@ static struct platform_device avila_flash = { .resource = &avila_flash_resource, }; -static struct ixp4xx_i2c_pins avila_i2c_gpio_pins = { +static struct i2c_gpio_platform_data avila_i2c_gpio_data = { .sda_pin = AVILA_SDA_PIN, .scl_pin = AVILA_SCL_PIN, }; -static struct platform_device avila_i2c_controller = { - .name = "IXP4XX-I2C", +static struct platform_device avila_i2c_gpio = { + .name = "i2c-gpio", .id = 0, - .dev = { - .platform_data = &avila_i2c_gpio_pins, + .dev = { + .platform_data = &avila_i2c_gpio_data, }, - .num_resources = 0 }; static struct resource avila_uart_resources[] = { @@ -133,7 +133,7 @@ static struct platform_device avila_pata = { }; static struct platform_device *avila_devices[] __initdata = { - &avila_i2c_controller, + &avila_i2c_gpio, &avila_flash, &avila_uart }; diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c index 1e75e105c4f..c473d408aa7 100644 --- a/arch/arm/mach-ixp4xx/dsmg600-setup.c +++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/serial.h> #include <linux/serial_8250.h> +#include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -37,15 +38,17 @@ static struct platform_device dsmg600_flash = { .resource = &dsmg600_flash_resource, }; -static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = { +static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = { .sda_pin = DSMG600_SDA_PIN, .scl_pin = DSMG600_SCL_PIN, }; -static struct platform_device dsmg600_i2c_controller = { - .name = "IXP4XX-I2C", +static struct platform_device dsmg600_i2c_gpio = { + .name = "i2c-gpio", .id = 0, - .dev.platform_data = &dsmg600_i2c_gpio_pins, + .dev = { + .platform_data = &dsmg600_i2c_gpio_data, + }, }; #ifdef CONFIG_LEDS_CLASS @@ -116,7 +119,7 @@ static struct platform_device dsmg600_uart = { }; static struct platform_device *dsmg600_devices[] __initdata = { - &dsmg600_i2c_controller, + &dsmg600_i2c_gpio, &dsmg600_flash, }; diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index d5008d8fc9a..e89070da28b 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -15,6 +15,7 @@ #include <linux/tty.h> #include <linux/serial_8250.h> #include <linux/slab.h> +#include <linux/i2c-gpio.h> #include <linux/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -120,18 +121,17 @@ static struct platform_device ixdp425_flash_nand = { }; #endif /* CONFIG_MTD_NAND_PLATFORM */ -static struct ixp4xx_i2c_pins ixdp425_i2c_gpio_pins = { +static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = { .sda_pin = IXDP425_SDA_PIN, .scl_pin = IXDP425_SCL_PIN, }; -static struct platform_device ixdp425_i2c_controller = { - .name = "IXP4XX-I2C", +static struct platform_device ixdp425_i2c_gpio = { + .name = "i2c-gpio", .id = 0, - .dev = { - .platform_data = &ixdp425_i2c_gpio_pins, + .dev = { + .platform_data = &ixdp425_i2c_gpio_data, }, - .num_resources = 0 }; static struct resource ixdp425_uart_resources[] = { @@ -178,7 +178,7 @@ static struct platform_device ixdp425_uart = { }; static struct platform_device *ixdp425_devices[] __initdata = { - &ixdp425_i2c_controller, + &ixdp425_i2c_gpio, &ixdp425_flash, #if defined(CONFIG_MTD_NAND_PLATFORM) || \ defined(CONFIG_MTD_NAND_PLATFORM_MODULE) diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c index 78a17413cec..54d884fb251 100644 --- a/arch/arm/mach-ixp4xx/nas100d-setup.c +++ b/arch/arm/mach-ixp4xx/nas100d-setup.c @@ -16,6 +16,7 @@ #include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/leds.h> +#include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -68,16 +69,17 @@ static struct platform_device nas100d_leds = { }; #endif -static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = { +static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = { .sda_pin = NAS100D_SDA_PIN, .scl_pin = NAS100D_SCL_PIN, }; -static struct platform_device nas100d_i2c_controller = { - .name = "IXP4XX-I2C", +static struct platform_device nas100d_i2c_gpio = { + .name = "i2c-gpio", .id = 0, - .dev.platform_data = &nas100d_i2c_gpio_pins, - .num_resources = 0, + .dev = { + .platform_data = &nas100d_i2c_gpio_data, + }, }; static struct resource nas100d_uart_resources[] = { @@ -124,7 +126,7 @@ static struct platform_device nas100d_uart = { }; static struct platform_device *nas100d_devices[] __initdata = { - &nas100d_i2c_controller, + &nas100d_i2c_gpio, &nas100d_flash, #ifdef CONFIG_LEDS_IXP4XX &nas100d_leds, diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c index acd71e9c38a..6f10dc20832 100644 --- a/arch/arm/mach-ixp4xx/nslu2-power.c +++ b/arch/arm/mach-ixp4xx/nslu2-power.c @@ -21,7 +21,6 @@ #include <linux/reboot.h> #include <linux/irq.h> #include <linux/interrupt.h> -#include <linux/reboot.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index 9bf8ccbcacc..77277d27fcc 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -18,6 +18,7 @@ #include <linux/serial.h> #include <linux/serial_8250.h> #include <linux/leds.h> +#include <linux/i2c-gpio.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -41,7 +42,7 @@ static struct platform_device nslu2_flash = { .resource = &nslu2_flash_resource, }; -static struct ixp4xx_i2c_pins nslu2_i2c_gpio_pins = { +static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = { .sda_pin = NSLU2_SDA_PIN, .scl_pin = NSLU2_SCL_PIN, }; @@ -82,11 +83,12 @@ static struct platform_device nslu2_leds = { }; #endif -static struct platform_device nslu2_i2c_controller = { - .name = "IXP4XX-I2C", +static struct platform_device nslu2_i2c_gpio = { + .name = "i2c-gpio", .id = 0, - .dev.platform_data = &nslu2_i2c_gpio_pins, - .num_resources = 0, + .dev = { + .platform_data = &nslu2_i2c_gpio_data, + }, }; static struct platform_device nslu2_beeper = { @@ -139,7 +141,7 @@ static struct platform_device nslu2_uart = { }; static struct platform_device *nslu2_devices[] __initdata = { - &nslu2_i2c_controller, + &nslu2_i2c_gpio, &nslu2_flash, &nslu2_beeper, #ifdef CONFIG_LEDS_IXP4XX diff --git a/arch/arm/mach-ks8695/Makefile b/arch/arm/mach-ks8695/Makefile index 2a07a281fa8..730a3af12c9 100644 --- a/arch/arm/mach-ks8695/Makefile +++ b/arch/arm/mach-ks8695/Makefile @@ -9,7 +9,7 @@ obj-n := obj- := # PCI support is optional -#obj-$(CONFIG_PCI) += pci.o +obj-$(CONFIG_PCI) += pci.o # Board-specific support obj-$(CONFIG_MACH_KS8695) += board-micrel.o diff --git a/arch/arm/mach-ks8695/board-micrel.c b/arch/arm/mach-ks8695/board-micrel.c index 2feeef81d84..05ac2bd0402 100644 --- a/arch/arm/mach-ks8695/board-micrel.c +++ b/arch/arm/mach-ks8695/board-micrel.c @@ -40,7 +40,7 @@ static void __init micrel_init(void) printk(KERN_INFO "Micrel KS8695 Development Board initializing\n"); #ifdef CONFIG_PCI -// ks8695_init_pci(&micrel_pci); + ks8695_init_pci(&micrel_pci); #endif /* Add devices */ diff --git a/arch/arm/mach-ks8695/gpio.c b/arch/arm/mach-ks8695/gpio.c index b1aa3cb3d4a..5e46191c0af 100644 --- a/arch/arm/mach-ks8695/gpio.c +++ b/arch/arm/mach-ks8695/gpio.c @@ -20,6 +20,8 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <linux/init.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <linux/module.h> #include <asm/io.h> @@ -216,3 +218,84 @@ int irq_to_gpio(unsigned int irq) return (irq - KS8695_IRQ_EXTERN0); } EXPORT_SYMBOL(irq_to_gpio); + + +/* .... Debug interface ..................................................... */ + +#ifdef CONFIG_DEBUG_FS + +static int ks8695_gpio_show(struct seq_file *s, void *unused) +{ + unsigned int enable[] = { IOPC_IOEINT0EN, IOPC_IOEINT1EN, IOPC_IOEINT2EN, IOPC_IOEINT3EN, IOPC_IOTIM0EN, IOPC_IOTIM1EN }; + unsigned int intmask[] = { IOPC_IOEINT0TM, IOPC_IOEINT1TM, IOPC_IOEINT2TM, IOPC_IOEINT3TM }; + unsigned long mode, ctrl, data; + int i; + + mode = __raw_readl(KS8695_GPIO_VA + KS8695_IOPM); + ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC); + data = __raw_readl(KS8695_GPIO_VA + KS8695_IOPD); + + seq_printf(s, "Pin\tI/O\tFunction\tState\n\n"); + + for (i = KS8695_GPIO_0; i <= KS8695_GPIO_15 ; i++) { + seq_printf(s, "%i:\t", i); + + seq_printf(s, "%s\t", (mode & IOPM_(i)) ? "Output" : "Input"); + + if (i <= KS8695_GPIO_3) { + if (ctrl & enable[i]) { + seq_printf(s, "EXT%i ", i); + + switch ((ctrl & intmask[i]) >> (4 * i)) { + case IOPC_TM_LOW: + seq_printf(s, "(Low)"); break; + case IOPC_TM_HIGH: + seq_printf(s, "(High)"); break; + case IOPC_TM_RISING: + seq_printf(s, "(Rising)"); break; + case IOPC_TM_FALLING: + seq_printf(s, "(Falling)"); break; + case IOPC_TM_EDGE: + seq_printf(s, "(Edges)"); break; + } + } + else + seq_printf(s, "GPIO\t"); + } + else if (i <= KS8695_GPIO_5) { + if (ctrl & enable[i]) + seq_printf(s, "TOUT%i\t", i - KS8695_GPIO_4); + else + seq_printf(s, "GPIO\t"); + } + else + seq_printf(s, "GPIO\t"); + + seq_printf(s, "\t"); + + seq_printf(s, "%i\n", (data & IOPD_(i)) ? 1 : 0); + } + return 0; +} + +static int ks8695_gpio_open(struct inode *inode, struct file *file) +{ + return single_open(file, ks8695_gpio_show, NULL); +} + +static const struct file_operations ks8695_gpio_operations = { + .open = ks8695_gpio_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init ks8695_gpio_debugfs_init(void) +{ + /* /sys/kernel/debug/ks8695_gpio */ + (void) debugfs_create_file("ks8695_gpio", S_IFREG | S_IRUGO, NULL, NULL, &ks8695_gpio_operations); + return 0; +} +postcore_initcall(ks8695_gpio_debugfs_init); + +#endif diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c new file mode 100644 index 00000000000..3f4e0330cb1 --- /dev/null +++ b/arch/arm/mach-ks8695/pci.c @@ -0,0 +1,326 @@ +/* + * arch/arm/mach-ks8695/pci.c + * + * Copyright (C) 2003, Micrel Semiconductors + * Copyright (C) 2006, Greg Ungerer <gerg@snapgear.com> + * Copyright (C) 2006, Ben Dooks + * Copyright (C) 2007, Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/delay.h> + +#include <asm/io.h> +#include <asm/signal.h> +#include <asm/mach/pci.h> +#include <asm/hardware.h> + +#include <asm/arch/devices.h> +#include <asm/arch/regs-pci.h> + + +static int pci_dbg; +static int pci_cfg_dbg; + + +static void ks8695_pci_setupconfig(unsigned int bus_nr, unsigned int devfn, unsigned int where) +{ + unsigned long pbca; + + pbca = PBCA_ENABLE | (where & ~3); + pbca |= PCI_SLOT(devfn) << 11 ; + pbca |= PCI_FUNC(devfn) << 8; + pbca |= bus_nr << 16; + + if (bus_nr == 0) { + /* use Type-0 transaction */ + __raw_writel(pbca, KS8695_PCI_VA + KS8695_PBCA); + } else { + /* use Type-1 transaction */ + __raw_writel(pbca | PBCA_TYPE1, KS8695_PCI_VA + KS8695_PBCA); + } +} + + +/* + * The KS8695 datasheet prohibits anything other than 32bit accesses + * to the IO registers, so all our configuration must be done with + * 32bit operations, and the correct bit masking and shifting. + */ + +static int ks8695_pci_readconfig(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 *value) +{ + ks8695_pci_setupconfig(bus->number, devfn, where); + + *value = __raw_readl(KS8695_PCI_VA + KS8695_PBCD); + + switch (size) { + case 4: + break; + case 2: + *value = *value >> ((where & 2) * 8); + *value &= 0xffff; + break; + case 1: + *value = *value >> ((where & 3) * 8); + *value &= 0xff; + break; + } + + if (pci_cfg_dbg) { + printk("read: %d,%08x,%02x,%d: %08x (%08x)\n", + bus->number, devfn, where, size, *value, + __raw_readl(KS8695_PCI_VA + KS8695_PBCD)); + } + + return PCIBIOS_SUCCESSFUL; +} + +static int ks8695_pci_writeconfig(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 value) +{ + unsigned long tmp; + + if (pci_cfg_dbg) { + printk("write: %d,%08x,%02x,%d: %08x\n", + bus->number, devfn, where, size, value); + } + + ks8695_pci_setupconfig(bus->number, devfn, where); + + switch (size) { + case 4: + __raw_writel(value, KS8695_PCI_VA + KS8695_PBCD); + break; + case 2: + tmp = __raw_readl(KS8695_PCI_VA + KS8695_PBCD); + tmp &= ~(0xffff << ((where & 2) * 8)); + tmp |= value << ((where & 2) * 8); + + __raw_writel(tmp, KS8695_PCI_VA + KS8695_PBCD); + break; + case 1: + tmp = __raw_readl(KS8695_PCI_VA + KS8695_PBCD); + tmp &= ~(0xff << ((where & 3) * 8)); + tmp |= value << ((where & 3) * 8); + + __raw_writel(tmp, KS8695_PCI_VA + KS8695_PBCD); + break; + } + + return PCIBIOS_SUCCESSFUL; +} + +static void ks8695_local_writeconfig(int where, u32 value) +{ + ks8695_pci_setupconfig(0, 0, where); + __raw_writel(value, KS8695_PCI_VA + KS8695_PBCD); +} + +static struct pci_ops ks8695_pci_ops = { + .read = ks8695_pci_readconfig, + .write = ks8695_pci_writeconfig, +}; + +static struct pci_bus *ks8695_pci_scan_bus(int nr, struct pci_sys_data *sys) +{ + return pci_scan_bus(sys->busnr, &ks8695_pci_ops, sys); +} + +static struct resource pci_mem = { + .name = "PCI Memory space", + .start = KS8695_PCIMEM_PA, + .end = KS8695_PCIMEM_PA + (KS8695_PCIMEM_SIZE - 1), + .flags = IORESOURCE_MEM, +}; + +static struct resource pci_io = { + .name = "PCI IO space", + .start = KS8695_PCIIO_PA, + .end = KS8695_PCIIO_PA + (KS8695_PCIIO_SIZE - 1), + .flags = IORESOURCE_IO, +}; + +static int __init ks8695_pci_setup(int nr, struct pci_sys_data *sys) +{ + if (nr > 0) + return 0; + + request_resource(&iomem_resource, &pci_mem); + request_resource(&ioport_resource, &pci_io); + + sys->resource[0] = &pci_io; + sys->resource[1] = &pci_mem; + sys->resource[2] = NULL; + + /* Assign and enable processor bridge */ + ks8695_local_writeconfig(PCI_BASE_ADDRESS_0, KS8695_PCIMEM_PA); + + /* Enable bus-master & Memory Space access */ + ks8695_local_writeconfig(PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); + + /* Set cache-line size & latency. */ + ks8695_local_writeconfig(PCI_CACHE_LINE_SIZE, (32 << 8) | (L1_CACHE_BYTES / sizeof(u32))); + + /* Reserve PCI memory space for PCI-AHB resources */ + if (!request_mem_region(KS8695_PCIMEM_PA, SZ_64M, "PCI-AHB Bridge")) { + printk(KERN_ERR "Cannot allocate PCI-AHB Bridge memory.\n"); + return -EBUSY; + } + + return 1; +} + +static inline unsigned int size_mask(unsigned long size) +{ + return (~size) + 1; +} + +static int ks8695_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) +{ + unsigned long pc = instruction_pointer(regs); + unsigned long instr = *(unsigned long *)pc; + unsigned long cmdstat; + + cmdstat = __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS); + + printk(KERN_ERR "PCI abort: address = 0x%08lx fsr = 0x%03x PC = 0x%08lx LR = 0x%08lx [%s%s%s%s%s]\n", + addr, fsr, regs->ARM_pc, regs->ARM_lr, + cmdstat & (PCI_STATUS_SIG_TARGET_ABORT << 16) ? "GenTarget" : " ", + cmdstat & (PCI_STATUS_REC_TARGET_ABORT << 16) ? "RecvTarget" : " ", + cmdstat & (PCI_STATUS_REC_MASTER_ABORT << 16) ? "MasterAbort" : " ", + cmdstat & (PCI_STATUS_SIG_SYSTEM_ERROR << 16) ? "SysError" : " ", + cmdstat & (PCI_STATUS_DETECTED_PARITY << 16) ? "Parity" : " " + ); + + __raw_writel(cmdstat, KS8695_PCI_VA + KS8695_CRCFCS); + + /* + * If the instruction being executed was a read, + * make it look like it read all-ones. + */ + if ((instr & 0x0c100000) == 0x04100000) { + int reg = (instr >> 12) & 15; + unsigned long val; + + if (instr & 0x00400000) + val = 255; + else + val = -1; + + regs->uregs[reg] = val; + regs->ARM_pc += 4; + return 0; + } + + if ((instr & 0x0e100090) == 0x00100090) { + int reg = (instr >> 12) & 15; + + regs->uregs[reg] = -1; + regs->ARM_pc += 4; + return 0; + } + + return 1; +} + +static void __init ks8695_pci_preinit(void) +{ + /* stage 1 initialization, subid, subdevice = 0x0001 */ + __raw_writel(0x00010001, KS8695_PCI_VA + KS8695_CRCSID); + + /* stage 2 initialization */ + /* prefetch limits with 16 words, retry enable */ + __raw_writel(0x40000000, KS8695_PCI_VA + KS8695_PBCS); + + /* configure memory mapping */ + __raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBA); + __raw_writel(size_mask(KS8695_PCIMEM_SIZE), KS8695_PCI_VA + KS8695_PMBAM); + __raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBAT); + __raw_writel(0, KS8695_PCI_VA + KS8695_PMBAC); + + /* configure IO mapping */ + __raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBA); + __raw_writel(size_mask(KS8695_PCIIO_SIZE), KS8695_PCI_VA + KS8695_PIOBAM); + __raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBAT); + __raw_writel(0, KS8695_PCI_VA + KS8695_PIOBAC); + + /* hook in fault handlers */ + hook_fault_code(8, ks8695_pci_fault, SIGBUS, "external abort on non-linefetch"); + hook_fault_code(10, ks8695_pci_fault, SIGBUS, "external abort on non-linefetch"); +} + +static void ks8695_show_pciregs(void) +{ + if (!pci_dbg) + return; + + printk(KERN_INFO "PCI: CRCFID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFID)); + printk(KERN_INFO "PCI: CRCFCS = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS)); + printk(KERN_INFO "PCI: CRCFRV = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFRV)); + printk(KERN_INFO "PCI: CRCFLT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFLT)); + printk(KERN_INFO "PCI: CRCBMA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCBMA)); + printk(KERN_INFO "PCI: CRCSID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCSID)); + printk(KERN_INFO "PCI: CRCFIT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFIT)); + + printk(KERN_INFO "PCI: PBM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBM)); + printk(KERN_INFO "PCI: PBCS = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBCS)); + + printk(KERN_INFO "PCI: PMBA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBA)); + printk(KERN_INFO "PCI: PMBAC = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAC)); + printk(KERN_INFO "PCI: PMBAM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAM)); + printk(KERN_INFO "PCI: PMBAT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAT)); + + printk(KERN_INFO "PCI: PIOBA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBA)); + printk(KERN_INFO "PCI: PIOBAC = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAC)); + printk(KERN_INFO "PCI: PIOBAM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAM)); + printk(KERN_INFO "PCI: PIOBAT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAT)); +} + + +static struct hw_pci ks8695_pci __initdata = { + .nr_controllers = 1, + .preinit = ks8695_pci_preinit, + .setup = ks8695_pci_setup, + .scan = ks8695_pci_scan_bus, + .postinit = NULL, + .swizzle = pci_std_swizzle, + .map_irq = NULL, +}; + +void __init ks8695_init_pci(struct ks8695_pci_cfg *cfg) +{ + if (__raw_readl(KS8695_PCI_VA + KS8695_CRCFRV) & CFRV_GUEST) { + printk("PCI: KS8695 in guest mode, not initialising\n"); + return; + } + + printk(KERN_INFO "PCI: Initialising\n"); + ks8695_show_pciregs(); + + /* set Mode */ + __raw_writel(cfg->mode << 29, KS8695_PCI_VA + KS8695_PBM); + + ks8695_pci.map_irq = cfg->map_irq; /* board-specific map_irq method */ + + pci_common_init(&ks8695_pci); +} diff --git a/arch/arm/mach-ks8695/time.c b/arch/arm/mach-ks8695/time.c index d2c86e4a72e..02f766b3121 100644 --- a/arch/arm/mach-ks8695/time.c +++ b/arch/arm/mach-ks8695/time.c @@ -70,10 +70,7 @@ static unsigned long ks8695_gettimeoffset (void) */ static irqreturn_t ks8695_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-lh7a40x/time.c b/arch/arm/mach-lh7a40x/time.c index c25316d0253..e50e60b3385 100644 --- a/arch/arm/mach-lh7a40x/time.c +++ b/arch/arm/mach-lh7a40x/time.c @@ -41,13 +41,9 @@ static irqreturn_t lh7a40x_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - TIMER_EOI = 0; timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig new file mode 100644 index 00000000000..3553babbbf0 --- /dev/null +++ b/arch/arm/mach-msm/Kconfig @@ -0,0 +1,18 @@ +if ARCH_MSM7X00A + +comment "MSM7X00A Board Type" + depends on ARCH_MSM7X00A + +config MACH_HALIBUT + depends on ARCH_MSM7X00A + default y + bool "Halibut Board (QCT SURF7200A)" + help + Support for the Qualcomm SURF7200A eval board. + +config MSM7X00A_IDLE + depends on ARCH_MSM7X00A + default y + bool "Idle Support for MSM7X00A" + +endif diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile new file mode 100644 index 00000000000..d12f2365585 --- /dev/null +++ b/arch/arm/mach-msm/Makefile @@ -0,0 +1,7 @@ +obj-y += io.o idle.o irq.o timer.o dma.o + +# Common code for board init +obj-y += common.o + +obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o + diff --git a/arch/arm/mach-msm/Makefile.boot b/arch/arm/mach-msm/Makefile.boot new file mode 100644 index 00000000000..24dfbf8c07c --- /dev/null +++ b/arch/arm/mach-msm/Makefile.boot @@ -0,0 +1,3 @@ + zreladdr-y := 0x10008000 +params_phys-y := 0x10000100 +initrd_phys-y := 0x10800000 diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c new file mode 100644 index 00000000000..86dfb2b5261 --- /dev/null +++ b/arch/arm/mach-msm/board-halibut.c @@ -0,0 +1,114 @@ +/* linux/arch/arm/mach-msm/board-halibut.c + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/input.h> + +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/flash.h> + +#include <asm/arch/board.h> +#include <asm/arch/msm_iomap.h> + +#include <asm/io.h> +#include <asm/delay.h> + +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> + +static struct resource smc91x_resources[] = { + [0] = { + .start = 0x9C004300, + .end = 0x9C004400, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = MSM_GPIO_TO_INT(49), + .end = MSM_GPIO_TO_INT(49), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static void mddi0_panel_power(int on) +{ +} + +static struct msm_mddi_platform_data msm_mddi0_pdata = { + .panel_power = mddi0_panel_power, + .has_vsync_irq = 0, +}; + +static struct platform_device msm_mddi0_device = { + .name = "msm_mddi", + .id = 0, + .dev = { + .platform_data = &msm_mddi0_pdata + }, +}; + +static struct platform_device msm_serial0_device = { + .name = "msm_serial", + .id = 0, +}; + +static struct platform_device *devices[] __initdata = { + &msm_serial0_device, + &msm_mddi0_device, + &smc91x_device, +}; + +extern struct sys_timer msm_timer; + +static void __init halibut_init_irq(void) +{ + msm_init_irq(); +} + +static void __init halibut_init(void) +{ + platform_add_devices(devices, ARRAY_SIZE(devices)); + msm_add_devices(); +} + +static void __init halibut_map_io(void) +{ + msm_map_common_io(); +} + +MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)") + +/* UART for LL DEBUG */ + .phys_io = MSM_UART1_PHYS, + .io_pg_offst = ((MSM_UART1_BASE) >> 18) & 0xfffc, + + .boot_params = 0x10000100, + .map_io = halibut_map_io, + .init_irq = halibut_init_irq, + .init_machine = halibut_init, + .timer = &msm_timer, +MACHINE_END diff --git a/arch/arm/mach-msm/common.c b/arch/arm/mach-msm/common.c new file mode 100644 index 00000000000..3f5d3362f88 --- /dev/null +++ b/arch/arm/mach-msm/common.c @@ -0,0 +1,116 @@ +/* linux/arch/arm/mach-msm/common.c + * + * Common setup code for MSM7K Boards + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/mach/flash.h> +#include <asm/io.h> + +#include <asm/setup.h> + +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> + +#include <asm/arch/msm_iomap.h> + +#include <asm/arch/board.h> + +struct flash_platform_data msm_nand_data = { + .parts = 0, + .nr_parts = 0, +}; + +static struct resource msm_nand_resources[] = { + [0] = { + .start = 7, + .end = 7, + .flags = IORESOURCE_DMA, + }, +}; + +static struct platform_device msm_nand_device = { + .name = "msm_nand", + .id = -1, + .num_resources = ARRAY_SIZE(msm_nand_resources), + .resource = msm_nand_resources, + .dev = { + .platform_data = &msm_nand_data, + }, +}; + +static struct platform_device msm_smd_device = { + .name = "msm_smd", + .id = -1, +}; + +static struct resource msm_i2c_resources[] = { + { + .start = MSM_I2C_BASE, + .end = MSM_I2C_BASE + MSM_I2C_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_PWB_I2C, + .end = INT_PWB_I2C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device msm_i2c_device = { + .name = "msm_i2c", + .id = 0, + .num_resources = ARRAY_SIZE(msm_i2c_resources), + .resource = msm_i2c_resources, +}; + +static struct resource usb_resources[] = { + { + .start = MSM_HSUSB_PHYS, + .end = MSM_HSUSB_PHYS + MSM_HSUSB_SIZE, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_USB_HS, + .end = INT_USB_HS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device msm_hsusb_device = { + .name = "msm_hsusb", + .id = -1, + .num_resources = ARRAY_SIZE(usb_resources), + .resource = usb_resources, + .dev = { + .coherent_dma_mask = 0xffffffff, + }, +}; + +static struct platform_device *devices[] __initdata = { + &msm_nand_device, + &msm_smd_device, + &msm_i2c_device, + &msm_hsusb_device, +}; + +void __init msm_add_devices(void) +{ + platform_add_devices(devices, ARRAY_SIZE(devices)); +} diff --git a/arch/arm/mach-msm/dma.c b/arch/arm/mach-msm/dma.c new file mode 100644 index 00000000000..8b0f339b327 --- /dev/null +++ b/arch/arm/mach-msm/dma.c @@ -0,0 +1,214 @@ +/* linux/arch/arm/mach-msm/dma.c + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <asm/io.h> +#include <linux/interrupt.h> +#include <asm/arch/dma.h> + +#define MSM_DMOV_CHANNEL_COUNT 16 + +enum { + MSM_DMOV_PRINT_ERRORS = 1, + MSM_DMOV_PRINT_IO = 2, + MSM_DMOV_PRINT_FLOW = 4 +}; + +static DEFINE_SPINLOCK(msm_dmov_lock); +static struct msm_dmov_cmd active_command; +static struct list_head ready_commands[MSM_DMOV_CHANNEL_COUNT]; +static struct list_head active_commands[MSM_DMOV_CHANNEL_COUNT]; +unsigned int msm_dmov_print_mask = MSM_DMOV_PRINT_ERRORS; + +#define MSM_DMOV_DPRINTF(mask, format, args...) \ + do { \ + if ((mask) & msm_dmov_print_mask) \ + printk(KERN_ERR format, args); \ + } while (0) +#define PRINT_ERROR(format, args...) \ + MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_ERRORS, format, args); +#define PRINT_IO(format, args...) \ + MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_IO, format, args); +#define PRINT_FLOW(format, args...) \ + MSM_DMOV_DPRINTF(MSM_DMOV_PRINT_FLOW, format, args); + +void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) +{ + unsigned long irq_flags; + unsigned int status; + + spin_lock_irqsave(&msm_dmov_lock, irq_flags); + status = readl(DMOV_STATUS(id)); + if (list_empty(&ready_commands[id]) && + (status & DMOV_STATUS_CMD_PTR_RDY)) { +#if 0 + if (list_empty(&active_commands[id])) { + PRINT_FLOW("msm_dmov_enqueue_cmd(%d), enable interrupt\n", id); + writel(DMOV_CONFIG_IRQ_EN, DMOV_CONFIG(id)); + } +#endif + PRINT_IO("msm_dmov_enqueue_cmd(%d), start command, status %x\n", id, status); + list_add_tail(&cmd->list, &active_commands[id]); + writel(cmd->cmdptr, DMOV_CMD_PTR(id)); + } else { + if (list_empty(&active_commands[id])) + PRINT_ERROR("msm_dmov_enqueue_cmd(%d), error datamover stalled, status %x\n", id, status); + + PRINT_IO("msm_dmov_enqueue_cmd(%d), enqueue command, status %x\n", id, status); + list_add_tail(&cmd->list, &ready_commands[id]); + } + spin_unlock_irqrestore(&msm_dmov_lock, irq_flags); +} + +struct msm_dmov_exec_cmdptr_cmd { + struct msm_dmov_cmd dmov_cmd; + struct completion complete; + unsigned id; + unsigned int result; + unsigned int flush[6]; +}; + +static void dmov_exec_cmdptr_complete_func(struct msm_dmov_cmd *_cmd, unsigned int result) +{ + struct msm_dmov_exec_cmdptr_cmd *cmd = container_of(_cmd, struct msm_dmov_exec_cmdptr_cmd, dmov_cmd); + cmd->result = result; + if (result != 0x80000002) { + cmd->flush[0] = readl(DMOV_FLUSH0(cmd->id)); + cmd->flush[1] = readl(DMOV_FLUSH1(cmd->id)); + cmd->flush[2] = readl(DMOV_FLUSH2(cmd->id)); + cmd->flush[3] = readl(DMOV_FLUSH3(cmd->id)); + cmd->flush[4] = readl(DMOV_FLUSH4(cmd->id)); + cmd->flush[5] = readl(DMOV_FLUSH5(cmd->id)); + } + complete(&cmd->complete); +} + +int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr) +{ + struct msm_dmov_exec_cmdptr_cmd cmd; + + PRINT_FLOW("dmov_exec_cmdptr(%d, %x)\n", id, cmdptr); + + cmd.dmov_cmd.cmdptr = cmdptr; + cmd.dmov_cmd.complete_func = dmov_exec_cmdptr_complete_func; + cmd.id = id; + init_completion(&cmd.complete); + + msm_dmov_enqueue_cmd(id, &cmd.dmov_cmd); + wait_for_completion(&cmd.complete); + + if (cmd.result != 0x80000002) { + PRINT_ERROR("dmov_exec_cmdptr(%d): ERROR, result: %x\n", id, cmd.result); + PRINT_ERROR("dmov_exec_cmdptr(%d): flush: %x %x %x %x\n", + id, cmd.flush[0], cmd.flush[1], cmd.flush[2], cmd.flush[3]); + return -EIO; + } + PRINT_FLOW("dmov_exec_cmdptr(%d, %x) done\n", id, cmdptr); + return 0; +} + + +static irqreturn_t msm_datamover_irq_handler(int irq, void *dev_id) +{ + unsigned int int_status, mask, id; + unsigned long irq_flags; + unsigned int ch_status; + unsigned int ch_result; + struct msm_dmov_cmd *cmd; + + spin_lock_irqsave(&msm_dmov_lock, irq_flags); + + int_status = readl(DMOV_ISR); /* read and clear interrupt */ + PRINT_FLOW("msm_datamover_irq_handler: DMOV_ISR %x\n", int_status); + + while (int_status) { + mask = int_status & -int_status; + id = fls(mask) - 1; + PRINT_FLOW("msm_datamover_irq_handler %08x %08x id %d\n", int_status, mask, id); + int_status &= ~mask; + ch_status = readl(DMOV_STATUS(id)); + if (!(ch_status & DMOV_STATUS_RSLT_VALID)) { + PRINT_FLOW("msm_datamover_irq_handler id %d, result not valid %x\n", id, ch_status); + continue; + } + do { + ch_result = readl(DMOV_RSLT(id)); + if (list_empty(&active_commands[id])) { + PRINT_ERROR("msm_datamover_irq_handler id %d, got result " + "with no active command, status %x, result %x\n", + id, ch_status, ch_result); + cmd = NULL; + } else + cmd = list_entry(active_commands[id].next, typeof(*cmd), list); + PRINT_FLOW("msm_datamover_irq_handler id %d, status %x, result %x\n", id, ch_status, ch_result); + if (ch_result & DMOV_RSLT_DONE) { + PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", + id, ch_status); + PRINT_IO("msm_datamover_irq_handler id %d, got result " + "for %p, result %x\n", id, cmd, ch_result); + if (cmd) { + list_del(&cmd->list); + cmd->complete_func(cmd, ch_result); + } + } + if (ch_result & DMOV_RSLT_FLUSH) { + unsigned int flush0 = readl(DMOV_FLUSH0(id)); + PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status); + PRINT_FLOW("msm_datamover_irq_handler id %d, flush, result %x, flush0 %x\n", id, ch_result, flush0); + if (cmd) { + list_del(&cmd->list); + cmd->complete_func(cmd, ch_result); + } + } + if (ch_result & DMOV_RSLT_ERROR) { + unsigned int flush0 = readl(DMOV_FLUSH0(id)); + PRINT_ERROR("msm_datamover_irq_handler id %d, status %x\n", id, ch_status); + PRINT_ERROR("msm_datamover_irq_handler id %d, error, result %x, flush0 %x\n", id, ch_result, flush0); + if (cmd) { + list_del(&cmd->list); + cmd->complete_func(cmd, ch_result); + } + /* this does not seem to work, once we get an error */ + /* the datamover will no longer accept commands */ + writel(0, DMOV_FLUSH0(id)); + } + ch_status = readl(DMOV_STATUS(id)); + PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status); + if ((ch_status & DMOV_STATUS_CMD_PTR_RDY) && !list_empty(&ready_commands[id])) { + cmd = list_entry(ready_commands[id].next, typeof(*cmd), list); + list_del(&cmd->list); + list_add_tail(&cmd->list, &active_commands[id]); + PRINT_FLOW("msm_datamover_irq_handler id %d, start command\n", id); + writel(cmd->cmdptr, DMOV_CMD_PTR(id)); + } + } while (ch_status & DMOV_STATUS_RSLT_VALID); + PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status); + } + spin_unlock_irqrestore(&msm_dmov_lock, irq_flags); + return IRQ_HANDLED; +} + +static int __init msm_init_datamover(void) +{ + int i; + for (i = 0; i < MSM_DMOV_CHANNEL_COUNT; i++) { + INIT_LIST_HEAD(&ready_commands[i]); + INIT_LIST_HEAD(&active_commands[i]); + writel(DMOV_CONFIG_IRQ_EN | DMOV_CONFIG_FORCE_TOP_PTR_RSLT | DMOV_CONFIG_FORCE_FLUSH_RSLT, DMOV_CONFIG(i)); + } + return request_irq(INT_ADM_AARM, msm_datamover_irq_handler, 0, "msmdatamover", NULL); +} + +arch_initcall(msm_init_datamover); + diff --git a/arch/arm/mach-msm/idle.S b/arch/arm/mach-msm/idle.S new file mode 100644 index 00000000000..2b1cb7f1694 --- /dev/null +++ b/arch/arm/mach-msm/idle.S @@ -0,0 +1,36 @@ +/* linux/include/asm-arm/arch-msm/idle.S + * + * Idle processing for MSM7K - work around bugs with SWFI. + * + * Copyright (c) 2007 QUALCOMM Incorporated. + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +ENTRY(arch_idle) +#ifdef CONFIG_MSM7X00A_IDLE + mrc p15, 0, r1, c1, c0, 0 /* read current CR */ + bic r0, r1, #(1 << 2) /* clear dcache bit */ + bic r0, r0, #(1 << 12) /* clear icache bit */ + mcr p15, 0, r0, c1, c0, 0 /* disable d/i cache */ + + mov r0, #0 /* prepare wfi value */ + mcr p15, 0, r0, c7, c10, 0 /* flush the cache */ + mcr p15, 0, r0, c7, c10, 4 /* memory barrier */ + mcr p15, 0, r0, c7, c0, 4 /* wait for interrupt */ + + mcr p15, 0, r1, c1, c0, 0 /* restore d/i cache */ +#endif + mov pc, lr diff --git a/arch/arm/mach-msm/io.c b/arch/arm/mach-msm/io.c new file mode 100644 index 00000000000..c39edb994a8 --- /dev/null +++ b/arch/arm/mach-msm/io.c @@ -0,0 +1,85 @@ +/* arch/arm/mach-msm/io.c + * + * MSM7K io support + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/page.h> +#include <asm/arch/msm_iomap.h> +#include <asm/mach/map.h> + +#include <asm/arch/board.h> + +#define MSM_DEVICE(name) { \ + .virtual = MSM_##name##_BASE, \ + .pfn = __phys_to_pfn(MSM_##name##_PHYS), \ + .length = MSM_##name##_SIZE, \ + .type = MT_DEVICE_NONSHARED, \ + } + +static struct map_desc msm_io_desc[] __initdata = { + MSM_DEVICE(VIC), + MSM_DEVICE(CSR), + MSM_DEVICE(GPT), + MSM_DEVICE(DMOV), + MSM_DEVICE(UART1), + MSM_DEVICE(UART2), + MSM_DEVICE(UART3), + MSM_DEVICE(I2C), + MSM_DEVICE(GPIO1), + MSM_DEVICE(GPIO2), + MSM_DEVICE(HSUSB), + MSM_DEVICE(CLK_CTL), + MSM_DEVICE(PMDH), + MSM_DEVICE(EMDH), + MSM_DEVICE(MDP), + { + .virtual = MSM_SHARED_RAM_BASE, + .pfn = __phys_to_pfn(MSM_SHARED_RAM_PHYS), + .length = MSM_SHARED_RAM_SIZE, + .type = MT_DEVICE, + }, +}; + +void __init msm_map_common_io(void) +{ + /* Make sure the peripheral register window is closed, since + * we will use PTE flags (TEX[1]=1,B=0,C=1) to determine which + * pages are peripheral interface or not. + */ + asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0)); + + iotable_init(msm_io_desc, ARRAY_SIZE(msm_io_desc)); +} + +void __iomem * +__msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype) +{ + if (mtype == MT_DEVICE) { + /* The peripherals in the 88000000 - D0000000 range + * are only accessable by type MT_DEVICE_NONSHARED. + * Adjust mtype as necessary to make this "just work." + */ + if ((phys_addr >= 0x88000000) && (phys_addr < 0xD0000000)) + mtype = MT_DEVICE_NONSHARED; + } + + return __arm_ioremap(phys_addr, size, mtype); +} diff --git a/arch/arm/mach-msm/irq.c b/arch/arm/mach-msm/irq.c new file mode 100644 index 00000000000..24158040b78 --- /dev/null +++ b/arch/arm/mach-msm/irq.c @@ -0,0 +1,154 @@ +/* linux/arch/arm/mach-msm/irq.c + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/ptrace.h> +#include <linux/timer.h> + +#include <linux/irq.h> +#include <asm/hardware.h> + +#include <asm/io.h> + +#include <asm/arch/msm_iomap.h> + +#define VIC_REG(off) (MSM_VIC_BASE + (off)) + +#define VIC_INT_SELECT0 VIC_REG(0x0000) /* 1: FIQ, 0: IRQ */ +#define VIC_INT_SELECT1 VIC_REG(0x0004) /* 1: FIQ, 0: IRQ */ +#define VIC_INT_EN0 VIC_REG(0x0010) +#define VIC_INT_EN1 VIC_REG(0x0014) +#define VIC_INT_ENCLEAR0 VIC_REG(0x0020) +#define VIC_INT_ENCLEAR1 VIC_REG(0x0024) +#define VIC_INT_ENSET0 VIC_REG(0x0030) +#define VIC_INT_ENSET1 VIC_REG(0x0034) +#define VIC_INT_TYPE0 VIC_REG(0x0040) /* 1: EDGE, 0: LEVEL */ +#define VIC_INT_TYPE1 VIC_REG(0x0044) /* 1: EDGE, 0: LEVEL */ +#define VIC_INT_POLARITY0 VIC_REG(0x0050) /* 1: NEG, 0: POS */ +#define VIC_INT_POLARITY1 VIC_REG(0x0054) /* 1: NEG, 0: POS */ +#define VIC_NO_PEND_VAL VIC_REG(0x0060) +#define VIC_INT_MASTEREN VIC_REG(0x0064) /* 1: IRQ, 2: FIQ */ +#define VIC_PROTECTION VIC_REG(0x006C) /* 1: ENABLE */ +#define VIC_CONFIG VIC_REG(0x0068) /* 1: USE ARM1136 VIC */ +#define VIC_IRQ_STATUS0 VIC_REG(0x0080) +#define VIC_IRQ_STATUS1 VIC_REG(0x0084) +#define VIC_FIQ_STATUS0 VIC_REG(0x0090) +#define VIC_FIQ_STATUS1 VIC_REG(0x0094) +#define VIC_RAW_STATUS0 VIC_REG(0x00A0) +#define VIC_RAW_STATUS1 VIC_REG(0x00A4) +#define VIC_INT_CLEAR0 VIC_REG(0x00B0) +#define VIC_INT_CLEAR1 VIC_REG(0x00B4) +#define VIC_SOFTINT0 VIC_REG(0x00C0) +#define VIC_SOFTINT1 VIC_REG(0x00C4) +#define VIC_IRQ_VEC_RD VIC_REG(0x00D0) /* pending int # */ +#define VIC_IRQ_VEC_PEND_RD VIC_REG(0x00D4) /* pending vector addr */ +#define VIC_IRQ_VEC_WR VIC_REG(0x00D8) +#define VIC_IRQ_IN_SERVICE VIC_REG(0x00E0) +#define VIC_IRQ_IN_STACK VIC_REG(0x00E4) +#define VIC_TEST_BUS_SEL VIC_REG(0x00E8) + +#define VIC_VECTPRIORITY(n) VIC_REG(0x0200+((n) * 4)) +#define VIC_VECTADDR(n) VIC_REG(0x0400+((n) * 4)) + +static void msm_irq_ack(unsigned int irq) +{ + unsigned reg = VIC_INT_CLEAR0 + ((irq & 32) ? 4 : 0); + irq = 1 << (irq & 31); + writel(irq, reg); +} + +static void msm_irq_mask(unsigned int irq) +{ + unsigned reg = VIC_INT_ENCLEAR0 + ((irq & 32) ? 4 : 0); + writel(1 << (irq & 31), reg); +} + +static void msm_irq_unmask(unsigned int irq) +{ + unsigned reg = VIC_INT_ENSET0 + ((irq & 32) ? 4 : 0); + writel(1 << (irq & 31), reg); +} + +static int msm_irq_set_wake(unsigned int irq, unsigned int on) +{ + return -EINVAL; +} + +static int msm_irq_set_type(unsigned int irq, unsigned int flow_type) +{ + unsigned treg = VIC_INT_TYPE0 + ((irq & 32) ? 4 : 0); + unsigned preg = VIC_INT_POLARITY0 + ((irq & 32) ? 4 : 0); + int b = 1 << (irq & 31); + + if (flow_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW)) + writel(readl(preg) | b, preg); + if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_HIGH)) + writel(readl(preg) & (~b), preg); + + if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) { + writel(readl(treg) | b, treg); + set_irq_handler(irq, handle_edge_irq); + } + if (flow_type & (IRQF_TRIGGER_HIGH | IRQF_TRIGGER_LOW)) { + writel(readl(treg) & (~b), treg); + set_irq_handler(irq, handle_level_irq); + } + return 0; +} + +static struct irq_chip msm_irq_chip = { + .name = "msm", + .ack = msm_irq_ack, + .mask = msm_irq_mask, + .unmask = msm_irq_unmask, + .set_wake = msm_irq_set_wake, + .set_type = msm_irq_set_type, +}; + +void __init msm_init_irq(void) +{ + unsigned n; + + /* select level interrupts */ + writel(0, VIC_INT_TYPE0); + writel(0, VIC_INT_TYPE1); + + /* select highlevel interrupts */ + writel(0, VIC_INT_POLARITY0); + writel(0, VIC_INT_POLARITY1); + + /* select IRQ for all INTs */ + writel(0, VIC_INT_SELECT0); + writel(0, VIC_INT_SELECT1); + + /* disable all INTs */ + writel(0, VIC_INT_EN0); + writel(0, VIC_INT_EN1); + + /* don't use 1136 vic */ + writel(0, VIC_CONFIG); + + /* enable interrupt controller */ + writel(1, VIC_INT_MASTEREN); + + for (n = 0; n < NR_MSM_IRQS; n++) { + set_irq_chip(n, &msm_irq_chip); + set_irq_handler(n, handle_level_irq); + set_irq_flags(n, IRQF_VALID); + } +} diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c new file mode 100644 index 00000000000..bd4732d1ab3 --- /dev/null +++ b/arch/arm/mach-msm/timer.c @@ -0,0 +1,205 @@ +/* linux/arch/arm/mach-msm/timer.c + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/init.h> +#include <linux/time.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/clk.h> +#include <linux/clockchips.h> +#include <linux/delay.h> + +#include <asm/mach/time.h> +#include <asm/arch/msm_iomap.h> + +#include <asm/io.h> + +#define MSM_DGT_BASE (MSM_GPT_BASE + 0x10) +#define MSM_DGT_SHIFT (5) + +#define TIMER_MATCH_VAL 0x0000 +#define TIMER_COUNT_VAL 0x0004 +#define TIMER_ENABLE 0x0008 +#define TIMER_ENABLE_CLR_ON_MATCH_EN 2 +#define TIMER_ENABLE_EN 1 +#define TIMER_CLEAR 0x000C + +#define CSR_PROTECTION 0x0020 +#define CSR_PROTECTION_EN 1 + +#define GPT_HZ 32768 +#define DGT_HZ 19200000 /* 19.2 MHz or 600 KHz after shift */ + +struct msm_clock { + struct clock_event_device clockevent; + struct clocksource clocksource; + struct irqaction irq; + uint32_t regbase; + uint32_t freq; + uint32_t shift; +}; + +static irqreturn_t msm_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = dev_id; + evt->event_handler(evt); + return IRQ_HANDLED; +} + +static cycle_t msm_gpt_read(void) +{ + return readl(MSM_GPT_BASE + TIMER_COUNT_VAL); +} + +static cycle_t msm_dgt_read(void) +{ + return readl(MSM_DGT_BASE + TIMER_COUNT_VAL) >> MSM_DGT_SHIFT; +} + +static int msm_timer_set_next_event(unsigned long cycles, + struct clock_event_device *evt) +{ + struct msm_clock *clock = container_of(evt, struct msm_clock, clockevent); + uint32_t now = readl(clock->regbase + TIMER_COUNT_VAL); + uint32_t alarm = now + (cycles << clock->shift); + int late; + + writel(alarm, clock->regbase + TIMER_MATCH_VAL); + now = readl(clock->regbase + TIMER_COUNT_VAL); + late = now - alarm; + if (late >= (-2 << clock->shift) && late < DGT_HZ*5) { + printk(KERN_NOTICE "msm_timer_set_next_event(%lu) clock %s, " + "alarm already expired, now %x, alarm %x, late %d\n", + cycles, clock->clockevent.name, now, alarm, late); + return -ETIME; + } + return 0; +} + +static void msm_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + struct msm_clock *clock = container_of(evt, struct msm_clock, clockevent); + switch (mode) { + case CLOCK_EVT_MODE_RESUME: + case CLOCK_EVT_MODE_PERIODIC: + break; + case CLOCK_EVT_MODE_ONESHOT: + writel(TIMER_ENABLE_EN, clock->regbase + TIMER_ENABLE); + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + writel(0, clock->regbase + TIMER_ENABLE); + break; + } +} + +static struct msm_clock msm_clocks[] = { + { + .clockevent = { + .name = "gp_timer", + .features = CLOCK_EVT_FEAT_ONESHOT, + .shift = 32, + .rating = 200, + .set_next_event = msm_timer_set_next_event, + .set_mode = msm_timer_set_mode, + }, + .clocksource = { + .name = "gp_timer", + .rating = 200, + .read = msm_gpt_read, + .mask = CLOCKSOURCE_MASK(32), + .shift = 24, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + }, + .irq = { + .name = "gp_timer", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_RISING, + .handler = msm_timer_interrupt, + .dev_id = &msm_clocks[0].clockevent, + .irq = INT_GP_TIMER_EXP + }, + .regbase = MSM_GPT_BASE, + .freq = GPT_HZ + }, + { + .clockevent = { + .name = "dg_timer", + .features = CLOCK_EVT_FEAT_ONESHOT, + .shift = 32 + MSM_DGT_SHIFT, + .rating = 300, + .set_next_event = msm_timer_set_next_event, + .set_mode = msm_timer_set_mode, + }, + .clocksource = { + .name = "dg_timer", + .rating = 300, + .read = msm_dgt_read, + .mask = CLOCKSOURCE_MASK((32 - MSM_DGT_SHIFT)), + .shift = 24 - MSM_DGT_SHIFT, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + }, + .irq = { + .name = "dg_timer", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_RISING, + .handler = msm_timer_interrupt, + .dev_id = &msm_clocks[1].clockevent, + .irq = INT_DEBUG_TIMER_EXP + }, + .regbase = MSM_DGT_BASE, + .freq = DGT_HZ >> MSM_DGT_SHIFT, + .shift = MSM_DGT_SHIFT + } +}; + +static void __init msm_timer_init(void) +{ + int i; + int res; + + for (i = 0; i < ARRAY_SIZE(msm_clocks); i++) { + struct msm_clock *clock = &msm_clocks[i]; + struct clock_event_device *ce = &clock->clockevent; + struct clocksource *cs = &clock->clocksource; + writel(0, clock->regbase + TIMER_ENABLE); + writel(0, clock->regbase + TIMER_CLEAR); + writel(~0, clock->regbase + TIMER_MATCH_VAL); + + ce->mult = div_sc(clock->freq, NSEC_PER_SEC, ce->shift); + /* allow at least 10 seconds to notice that the timer wrapped */ + ce->max_delta_ns = + clockevent_delta2ns(0xf0000000 >> clock->shift, ce); + /* 4 gets rounded down to 3 */ + ce->min_delta_ns = clockevent_delta2ns(4, ce); + ce->cpumask = cpumask_of_cpu(0); + + cs->mult = clocksource_hz2mult(clock->freq, cs->shift); + res = clocksource_register(cs); + if (res) + printk(KERN_ERR "msm_timer_init: clocksource_register " + "failed for %s\n", cs->name); + + res = setup_irq(clock->irq.irq, &clock->irq); + if (res) + printk(KERN_ERR "msm_timer_init: setup_irq " + "failed for %s\n", cs->name); + + clockevents_register_device(ce); + } +} + +struct sys_timer msm_timer = { + .init = msm_timer_init +}; diff --git a/arch/arm/mach-mx3/time.c b/arch/arm/mach-mx3/time.c index e81fb5c5d7c..fb565c98dbf 100644 --- a/arch/arm/mach-mx3/time.c +++ b/arch/arm/mach-mx3/time.c @@ -45,8 +45,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id) { unsigned int next_match; - write_seqlock(&xtime_lock); - if (__raw_readl(MXC_GPT_GPTSR) & GPTSR_OF1) { do { timer_tick(); @@ -57,8 +55,6 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id) __raw_readl(MXC_GPT_GPTCNT)) <= 0); } - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c index 4762e207b0b..ea07b54afa5 100644 --- a/arch/arm/mach-netx/time.c +++ b/arch/arm/mach-netx/time.c @@ -33,12 +33,8 @@ static irqreturn_t netx_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - timer_tick(); - write_sequnlock(&xtime_lock); - /* acknowledge interrupt */ writel(COUNTER_BIT(0), NETX_GPIO_IRQ); diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c index 130681201c1..9393824cc15 100644 --- a/arch/arm/mach-omap1/board-h2.c +++ b/arch/arm/mach-omap1/board-h2.c @@ -27,6 +27,7 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> #include <linux/input.h> +#include <linux/i2c/tps65010.h> #include <asm/hardware.h> #include <asm/gpio.h> @@ -36,7 +37,6 @@ #include <asm/mach/flash.h> #include <asm/mach/map.h> -#include <asm/arch/tps65010.h> #include <asm/arch/mux.h> #include <asm/arch/tc.h> #include <asm/arch/irda.h> diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index 4f84ae273a1..978cdab1653 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -26,6 +26,7 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> #include <linux/input.h> +#include <linux/i2c/tps65010.h> #include <asm/setup.h> #include <asm/page.h> @@ -37,7 +38,6 @@ #include <asm/mach/flash.h> #include <asm/mach/map.h> -#include <asm/arch/tps65010.h> #include <asm/arch/gpioexpander.h> #include <asm/arch/irqs.h> #include <asm/arch/mux.h> diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index 182a98a9df4..e2c8ffd75cf 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -32,7 +32,6 @@ #include <asm/arch/common.h> #include <asm/arch/dsp_common.h> #include <asm/arch/aic23.h> -#include <asm/arch/gpio.h> #include <asm/arch/omapfb.h> #include <asm/arch/lcd_mipid.h> diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index 5db182da322..4e016179f31 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -31,12 +31,13 @@ #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/irq.h> -#include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/i2c/tps65010.h> + #include <asm/hardware.h> #include <asm/gpio.h> @@ -46,7 +47,6 @@ #include <asm/mach/flash.h> #include <asm/arch/usb.h> -#include <asm/arch/tps65010.h> #include <asm/arch/mux.h> #include <asm/arch/tc.h> #include <asm/arch/common.h> diff --git a/arch/arm/mach-omap1/board-palmtt.c b/arch/arm/mach-omap1/board-palmtt.c index e47010fec27..ed7094a7006 100644 --- a/arch/arm/mach-omap1/board-palmtt.c +++ b/arch/arm/mach-omap1/board-palmtt.c @@ -42,7 +42,6 @@ #include <asm/arch/common.h> #include <asm/arch/omap-alsa.h> -#include <linux/input.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c index c275d517764..a9a0f6610c3 100644 --- a/arch/arm/mach-omap1/board-palmz71.c +++ b/arch/arm/mach-omap1/board-palmz71.c @@ -44,7 +44,6 @@ #include <asm/arch/common.h> #include <asm/arch/omap-alsa.h> -#include <linux/input.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> diff --git a/arch/arm/mach-omap1/leds-osk.c b/arch/arm/mach-omap1/leds-osk.c index 86de303ecab..6939d5e7569 100644 --- a/arch/arm/mach-omap1/leds-osk.c +++ b/arch/arm/mach-omap1/leds-osk.c @@ -5,13 +5,13 @@ */ #include <linux/init.h> #include <linux/workqueue.h> +#include <linux/i2c/tps65010.h> #include <asm/hardware.h> #include <asm/leds.h> #include <asm/system.h> #include <asm/arch/gpio.h> -#include <asm/arch/tps65010.h> #include "leds.h" diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index d9805e3d930..06b7e54a012 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -639,7 +639,7 @@ static void omap_pm_finish(void) } -static irqreturn_t omap_wakeup_interrupt(int irq, void *dev) +static irqreturn_t omap_wakeup_interrupt(int irq, void *dev) { return IRQ_HANDLED; } diff --git a/arch/arm/mach-omap2/board-apollon.c b/arch/arm/mach-omap2/board-apollon.c index 3bb49c17c85..94e38cc2bb6 100644 --- a/arch/arm/mach-omap2/board-apollon.c +++ b/arch/arm/mach-omap2/board-apollon.c @@ -26,7 +26,6 @@ #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/leds.h> -#include <linux/irq.h> #include <asm/hardware.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c index 8d322c20cca..3234deedb94 100644 --- a/arch/arm/mach-omap2/timer-gp.c +++ b/arch/arm/mach-omap2/timer-gp.c @@ -40,13 +40,9 @@ static inline void omap2_gp_timer_start(unsigned long load_val) static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - omap_dm_timer_write_status(gptimer, OMAP_TIMER_INT_OVERFLOW); timer_tick(); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-pnx4008/time.c b/arch/arm/mach-pnx4008/time.c index 67e05f005a6..6d4ca8fc0cb 100644 --- a/arch/arm/mach-pnx4008/time.c +++ b/arch/arm/mach-pnx4008/time.c @@ -51,8 +51,6 @@ static irqreturn_t pnx4008_timer_interrupt(int irq, void *dev_id) { if (__raw_readl(HSTIM_INT) & MATCH0_INT) { - write_seqlock(&xtime_lock); - do { timer_tick(); @@ -73,8 +71,6 @@ static irqreturn_t pnx4008_timer_interrupt(int irq, void *dev_id) } while ((signed) (__raw_readl(HSTIM_MATCH0) - __raw_readl(HSTIM_COUNTER)) < 0); - - write_sequnlock(&xtime_lock); } return IRQ_HANDLED; diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c index 12d2fe0ceff..254892ac30c 100644 --- a/arch/arm/mach-pxa/akita-ioexp.c +++ b/arch/arm/mach-pxa/akita-ioexp.c @@ -29,7 +29,7 @@ #define MAX7310_TIMEOUT 0x04 /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END }; /* I2C Magic */ I2C_CLIENT_INSMOD; diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index 9732d5d9466..006a6e09589 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -111,11 +111,14 @@ static const struct clkops clk_pxa25x_lcd_ops = { * 95.842MHz -> MMC 19.169MHz, I2C 31.949MHz, FICP 47.923MHz, USB 47.923MHz * 147.456MHz -> UART 14.7456MHz, AC97 12.288MHz, I2S 5.672MHz (allegedly) */ +static struct clk pxa25x_hwuart_clk = + INIT_CKEN("UARTCLK", HWUART, 14745600, 1, &pxa_device_hwuart.dev) +; + static struct clk pxa25x_clks[] = { INIT_CK("LCDCLK", LCD, &clk_pxa25x_lcd_ops, &pxa_device_fb.dev), INIT_CKEN("UARTCLK", FFUART, 14745600, 1, &pxa_device_ffuart.dev), INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev), - INIT_CKEN("UARTCLK", BTUART, 14745600, 1, &pxa_device_btuart.dev), INIT_CKEN("UARTCLK", STUART, 14745600, 1, NULL), INIT_CKEN("UDCCLK", USB, 47923000, 5, &pxa_device_udc.dev), INIT_CKEN("MMCCLK", MMC, 19169000, 0, &pxa_device_mci.dev), @@ -303,6 +306,10 @@ static int __init pxa25x_init(void) { int ret = 0; + /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */ + if (cpu_is_pxa25x()) + clks_register(&pxa25x_hwuart_clk, 1); + if (cpu_is_pxa21x() || cpu_is_pxa25x()) { clks_register(pxa25x_clks, ARRAY_SIZE(pxa25x_clks)); diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 8e126e6b74c..57efebdc432 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -24,6 +24,7 @@ #include <asm/arch/ohci.h> #include <asm/arch/pm.h> #include <asm/arch/dma.h> +#include <asm/arch/i2c.h> #include "generic.h" #include "devices.h" @@ -423,6 +424,11 @@ struct platform_device pxa27x_device_i2c_power = { .num_resources = ARRAY_SIZE(i2c_power_resources), }; +void __init pxa_set_i2c_power_info(struct i2c_pxa_platform_data *info) +{ + pxa27x_device_i2c_power.dev.platform_data = info; +} + static struct platform_device *devices[] __initdata = { &pxa_device_mci, &pxa_device_udc, diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index 61d9c9d69e6..37e93f9ba8f 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -86,7 +86,7 @@ unsigned int pxa3xx_get_clk_frequency_khz(int info) HSS / 1000000, (HSS % 1000000) / 10000); } - return CLK; + return CLK / 1000; } /* diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c index 422afee8816..b2eb38543d1 100644 --- a/arch/arm/mach-pxa/ssp.c +++ b/arch/arm/mach-pxa/ssp.c @@ -67,7 +67,7 @@ static int use_count[PXA_SSP_PORTS] = {0, 0, 0}; static irqreturn_t ssp_interrupt(int irq, void *dev_id) { - struct ssp_dev *dev = (struct ssp_dev*) dev_id; + struct ssp_dev *dev = dev_id; unsigned int status = SSSR_P(dev->port); SSSR_P(dev->port) = status; /* clear status bits */ diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index c7f1b44da40..61d70218f1e 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -530,8 +530,6 @@ static unsigned long realview_gettimeoffset(void) */ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); - // ...clear the interrupt writel(1, TIMER0_VA_BASE + TIMER_INTCLR); @@ -542,8 +540,6 @@ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id) update_process_times(user_mode(get_irq_regs())); #endif - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index 587864fe25f..66175471fff 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -530,7 +530,7 @@ static struct s3c2410fb_mach_info __initdata bast_fb_info = { .displays = bast_lcd_info, .num_displays = ARRAY_SIZE(bast_lcd_info), - .default_display = 4, + .default_display = 1, }; /* Standard BAST devices */ @@ -540,7 +540,6 @@ static struct platform_device *bast_devices[] __initdata = { &s3c_device_lcd, &s3c_device_wdt, &s3c_device_i2c, - &s3c_device_iis, &s3c_device_rtc, &s3c_device_nand, &bast_device_nor, diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c index 9f43f3f124f..3aade7b78fe 100644 --- a/arch/arm/mach-s3c2410/mach-vr1000.c +++ b/arch/arm/mach-s3c2410/mach-vr1000.c @@ -365,7 +365,6 @@ static struct platform_device *vr1000_devices[] __initdata = { &s3c_device_lcd, &s3c_device_wdt, &s3c_device_i2c, - &s3c_device_iis, &s3c_device_adc, &serial_device, &vr1000_nor, diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c index bcd562ac1d3..6aec86a5da5 100644 --- a/arch/arm/mach-s3c2410/usb-simtec.c +++ b/arch/arm/mach-s3c2410/usb-simtec.c @@ -60,7 +60,7 @@ usb_simtec_powercontrol(int port, int to) static irqreturn_t usb_simtec_ocirq(int irq, void *pw) { - struct s3c2410_hcd_info *info = (struct s3c2410_hcd_info *)pw; + struct s3c2410_hcd_info *info = pw; if (s3c2410_gpio_getpin(S3C2410_GPG10) == 0) { pr_debug("usb_simtec: over-current irq (oc detected)\n"); diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index 8e8fe48ea47..0b43431d4b7 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -10,6 +10,7 @@ config CPU_S3C2412 select CPU_LLSERIAL_S3C2440 select S3C2412_PM if PM select S3C2412_DMA if S3C2410_DMA + select S3C2410_GPIO help Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line diff --git a/arch/arm/mach-s3c2412/Makefile b/arch/arm/mach-s3c2412/Makefile index f8e011691b3..267f3348301 100644 --- a/arch/arm/mach-s3c2412/Makefile +++ b/arch/arm/mach-s3c2412/Makefile @@ -12,8 +12,9 @@ obj- := obj-$(CONFIG_CPU_S3C2412) += s3c2412.o obj-$(CONFIG_CPU_S3C2412) += irq.o obj-$(CONFIG_CPU_S3C2412) += clock.o +obj-$(CONFIG_CPU_S3C2412) += gpio.o obj-$(CONFIG_S3C2412_DMA) += dma.o -obj-$(CONFIG_S3C2412_PM) += pm.o +obj-$(CONFIG_S3C2412_PM) += pm.o sleep.o # Machine support diff --git a/arch/arm/mach-s3c2412/clock.c b/arch/arm/mach-s3c2412/clock.c index 45899360189..2697a65ba72 100644 --- a/arch/arm/mach-s3c2412/clock.c +++ b/arch/arm/mach-s3c2412/clock.c @@ -217,7 +217,7 @@ static int s3c2412_setparent_msysclk(struct clk *clk, struct clk *parent) if (parent == &clk_mdivclk) clksrc &= ~S3C2412_CLKSRC_MSYSCLK_MPLL; - else if (parent == &clk_upll) + else if (parent == &clk_mpll) clksrc |= S3C2412_CLKSRC_MSYSCLK_MPLL; else return -EINVAL; @@ -234,6 +234,45 @@ static struct clk clk_msysclk = { .set_parent = s3c2412_setparent_msysclk, }; +static int s3c2412_setparent_armclk(struct clk *clk, struct clk *parent) +{ + unsigned long flags; + unsigned long clkdiv; + unsigned long dvs; + + /* Note, we current equate fclk andf msysclk for S3C2412 */ + + if (parent == &clk_msysclk || parent == &clk_f) + dvs = 0; + else if (parent == &clk_h) + dvs = S3C2412_CLKDIVN_DVSEN; + else + return -EINVAL; + + clk->parent = parent; + + /* update this under irq lockdown, clkdivn is not protected + * by the clock system. */ + + local_irq_save(flags); + + clkdiv = __raw_readl(S3C2410_CLKDIVN); + clkdiv &= ~S3C2412_CLKDIVN_DVSEN; + clkdiv |= dvs; + __raw_writel(clkdiv, S3C2410_CLKDIVN); + + local_irq_restore(flags); + + return 0; +} + +static struct clk clk_armclk = { + .name = "armclk", + .id = -1, + .parent = &clk_msysclk, + .set_parent = s3c2412_setparent_armclk, +}; + /* these next clocks have an divider immediately after them, * so we can register them with their divider and leave out the * intermediate clock stage @@ -630,11 +669,13 @@ static struct clk *clks[] __initdata = { &clk_erefclk, &clk_urefclk, &clk_mrefclk, + &clk_armclk, }; int __init s3c2412_baseclk_add(void) { unsigned long clkcon = __raw_readl(S3C2410_CLKCON); + unsigned int dvs; struct clk *clkp; int ret; int ptr; @@ -643,6 +684,8 @@ int __init s3c2412_baseclk_add(void) clk_usb_bus.parent = &clk_usbsrc; clk_usb_bus.rate = 0x0; + clk_f.parent = &clk_msysclk; + s3c2412_clk_initparents(); for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) { @@ -655,6 +698,15 @@ int __init s3c2412_baseclk_add(void) } } + /* set the dvs state according to what we got at boot time */ + + dvs = __raw_readl(S3C2410_CLKDIVN) & S3C2412_CLKDIVN_DVSEN; + + if (dvs) + clk_armclk.parent = &clk_h; + + printk(KERN_INFO "S3C2412: DVS is %s\n", dvs ? "on" : "off"); + /* ensure usb bus clock is within correct rate of 48MHz */ if (clk_get_rate(&clk_usb_bus) != (48 * 1000 * 1000)) { diff --git a/arch/arm/mach-s3c2412/dma.c b/arch/arm/mach-s3c2412/dma.c index 53c1d5bbce1..1dd86499356 100644 --- a/arch/arm/mach-s3c2412/dma.c +++ b/arch/arm/mach-s3c2412/dma.c @@ -30,6 +30,7 @@ #include <asm/arch/regs-mem.h> #include <asm/arch/regs-lcd.h> #include <asm/arch/regs-sdi.h> +#include <asm/plat-s3c24xx/regs-s3c2412-iis.h> #include <asm/plat-s3c24xx/regs-iis.h> #include <asm/plat-s3c24xx/regs-spi.h> @@ -39,106 +40,141 @@ static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = { [DMACH_XD0] = { .name = "xdreq0", .channels = MAP(S3C2412_DMAREQSEL_XDREQ0), + .channels_rx = MAP(S3C2412_DMAREQSEL_XDREQ0), }, [DMACH_XD1] = { .name = "xdreq1", .channels = MAP(S3C2412_DMAREQSEL_XDREQ1), + .channels_rx = MAP(S3C2412_DMAREQSEL_XDREQ1), }, [DMACH_SDI] = { .name = "sdi", .channels = MAP(S3C2412_DMAREQSEL_SDI), - .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, - .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + .channels_rx = MAP(S3C2412_DMAREQSEL_SDI), + .hw_addr.to = S3C2410_PA_SDI + S3C2410_SDIDATA, + .hw_addr.from = S3C2410_PA_SDI + S3C2410_SDIDATA, }, [DMACH_SPI0] = { .name = "spi0", .channels = MAP(S3C2412_DMAREQSEL_SPI0TX), + .channels_rx = MAP(S3C2412_DMAREQSEL_SPI0RX), .hw_addr.to = S3C2410_PA_SPI + S3C2410_SPTDAT, .hw_addr.from = S3C2410_PA_SPI + S3C2410_SPRDAT, }, [DMACH_SPI1] = { .name = "spi1", .channels = MAP(S3C2412_DMAREQSEL_SPI1TX), + .channels_rx = MAP(S3C2412_DMAREQSEL_SPI1RX), .hw_addr.to = S3C2410_PA_SPI + S3C2412_SPI1 + S3C2410_SPTDAT, .hw_addr.from = S3C2410_PA_SPI + S3C2412_SPI1 + S3C2410_SPRDAT, }, [DMACH_UART0] = { .name = "uart0", .channels = MAP(S3C2412_DMAREQSEL_UART0_0), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART0_0), .hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH, }, [DMACH_UART1] = { .name = "uart1", .channels = MAP(S3C2412_DMAREQSEL_UART1_0), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART1_0), .hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH, }, [DMACH_UART2] = { .name = "uart2", .channels = MAP(S3C2412_DMAREQSEL_UART2_0), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART2_0), .hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH, }, [DMACH_UART0_SRC2] = { .name = "uart0", .channels = MAP(S3C2412_DMAREQSEL_UART0_1), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART0_1), .hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH, }, [DMACH_UART1_SRC2] = { .name = "uart1", .channels = MAP(S3C2412_DMAREQSEL_UART1_1), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART1_1), .hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH, }, [DMACH_UART2_SRC2] = { .name = "uart2", .channels = MAP(S3C2412_DMAREQSEL_UART2_1), + .channels_rx = MAP(S3C2412_DMAREQSEL_UART2_1), .hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH, .hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH, }, [DMACH_TIMER] = { .name = "timer", .channels = MAP(S3C2412_DMAREQSEL_TIMER), + .channels_rx = MAP(S3C2412_DMAREQSEL_TIMER), }, [DMACH_I2S_IN] = { .name = "i2s-sdi", .channels = MAP(S3C2412_DMAREQSEL_I2SRX), - .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + .channels_rx = MAP(S3C2412_DMAREQSEL_I2SRX), + .hw_addr.from = S3C2410_PA_IIS + S3C2412_IISRXD, }, [DMACH_I2S_OUT] = { .name = "i2s-sdo", .channels = MAP(S3C2412_DMAREQSEL_I2STX), - .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + .channels_rx = MAP(S3C2412_DMAREQSEL_I2STX), + .hw_addr.to = S3C2410_PA_IIS + S3C2412_IISTXD, }, [DMACH_USB_EP1] = { .name = "usb-ep1", .channels = MAP(S3C2412_DMAREQSEL_USBEP1), + .channels_rx = MAP(S3C2412_DMAREQSEL_USBEP1), }, [DMACH_USB_EP2] = { .name = "usb-ep2", .channels = MAP(S3C2412_DMAREQSEL_USBEP2), + .channels_rx = MAP(S3C2412_DMAREQSEL_USBEP2), }, [DMACH_USB_EP3] = { .name = "usb-ep3", .channels = MAP(S3C2412_DMAREQSEL_USBEP3), + .channels_rx = MAP(S3C2412_DMAREQSEL_USBEP3), }, [DMACH_USB_EP4] = { .name = "usb-ep4", .channels = MAP(S3C2412_DMAREQSEL_USBEP4), + .channels_rx = MAP(S3C2412_DMAREQSEL_USBEP4), }, }; +static void s3c2412_dma_direction(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map, + enum s3c2410_dmasrc dir) +{ + unsigned long chsel; + + if (dir == S3C2410_DMASRC_HW) + chsel = map->channels_rx[0]; + else + chsel = map->channels[0]; + + chsel &= ~DMA_CH_VALID; + chsel |= S3C2412_DMAREQSEL_HW; + + writel(chsel, chan->regs + S3C2412_DMA_DMAREQSEL); +} + static void s3c2412_dma_select(struct s3c2410_dma_chan *chan, struct s3c24xx_dma_map *map) { - writel(map->channels[0] | S3C2412_DMAREQSEL_HW, - chan->regs + S3C2412_DMA_DMAREQSEL); + s3c2412_dma_direction(chan, map, chan->source); } static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = { .select = s3c2412_dma_select, + .direction = s3c2412_dma_direction, .dcon_mask = 0, .map = s3c2412_dma_mappings, .map_size = ARRAY_SIZE(s3c2412_dma_mappings), diff --git a/arch/arm/mach-s3c2412/gpio.c b/arch/arm/mach-s3c2412/gpio.c new file mode 100644 index 00000000000..8e55c3a2eab --- /dev/null +++ b/arch/arm/mach-s3c2412/gpio.c @@ -0,0 +1,60 @@ +/* linux/arch/arm/mach-s3c2412/gpio.c + * + * Copyright (c) 2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * http://armlinux.simtec.co.uk/. + * + * S3C2412/S3C2413 specific GPIO support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/interrupt.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <asm/arch/regs-gpio.h> + +#include <asm/hardware.h> + +int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state) +{ + void __iomem *base = S3C24XX_GPIO_BASE(pin); + unsigned long offs = S3C2410_GPIO_OFFSET(pin); + unsigned long flags; + unsigned long slpcon; + + offs *= 2; + + if (pin < S3C2410_GPIO_BANKB) + return -EINVAL; + + if (pin >= S3C2410_GPIO_BANKF && + pin <= S3C2410_GPIO_BANKG) + return -EINVAL; + + if (pin > (S3C2410_GPIO_BANKH + 32)) + return -EINVAL; + + local_irq_save(flags); + + slpcon = __raw_readl(base + 0x0C); + + slpcon &= ~(3 << offs); + slpcon |= state << offs; + + __raw_writel(slpcon, base + 0x0C); + + local_irq_restore(flags); + + return 0; +} + +EXPORT_SYMBOL(s3c2412_gpio_set_sleepcfg); diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c index e9d0c769f5d..cc1917bf952 100644 --- a/arch/arm/mach-s3c2412/irq.c +++ b/arch/arm/mach-s3c2412/irq.c @@ -33,6 +33,7 @@ #include <asm/arch/regs-irq.h> #include <asm/arch/regs-gpio.h> +#include <asm/arch/regs-power.h> #include <asm/plat-s3c24xx/cpu.h> #include <asm/plat-s3c24xx/irq.h> @@ -153,6 +154,22 @@ static struct irq_chip s3c2412_irq_cfsdi = { .unmask = s3c2412_irq_cfsdi_unmask, }; +static int s3c2412_irq_rtc_wake(unsigned int irqno, unsigned int state) +{ + unsigned long pwrcfg; + + pwrcfg = __raw_readl(S3C2412_PWRCFG); + if (state) + pwrcfg &= ~S3C2412_PWRCFG_RTC_MASKIRQ; + else + pwrcfg |= S3C2412_PWRCFG_RTC_MASKIRQ; + __raw_writel(pwrcfg, S3C2412_PWRCFG); + + return s3c_irq_chip.set_wake(irqno, state); +} + +static struct irq_chip s3c2412_irq_rtc_chip; + static int s3c2412_irq_add(struct sys_device *sysdev) { unsigned int irqno; @@ -173,6 +190,13 @@ static int s3c2412_irq_add(struct sys_device *sysdev) set_irq_flags(irqno, IRQF_VALID); } + /* change RTC IRQ's set wake method */ + + s3c2412_irq_rtc_chip = s3c_irq_chip; + s3c2412_irq_rtc_chip.set_wake = s3c2412_irq_rtc_wake; + + set_irq_chip(IRQ_RTC, &s3c2412_irq_rtc_chip); + return 0; } diff --git a/arch/arm/mach-s3c2412/pm.c b/arch/arm/mach-s3c2412/pm.c index 8988dac388a..d4ffb2d9807 100644 --- a/arch/arm/mach-s3c2412/pm.c +++ b/arch/arm/mach-s3c2412/pm.c @@ -33,6 +33,8 @@ #include <asm/plat-s3c24xx/s3c2412.h> +extern void s3c2412_sleep_enter(void); + static void s3c2412_cpu_suspend(void) { unsigned long tmp; @@ -43,20 +45,7 @@ static void s3c2412_cpu_suspend(void) tmp |= S3C2412_PWRCFG_STANDBYWFI_SLEEP; __raw_writel(tmp, S3C2412_PWRCFG); - /* issue the standby signal into the pm unit. Note, we - * issue a write-buffer drain just in case */ - - tmp = 0; - - asm("b 1f\n\t" - ".align 5\n\t" - "1:\n\t" - "mcr p15, 0, %0, c7, c10, 4\n\t" - "mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp)); - - /* we should never get past here */ - - panic("sleep resumed to originator?"); + s3c2412_sleep_enter(); } static void s3c2412_pm_prepare(void) @@ -88,7 +77,6 @@ static struct sleep_save s3c2412_sleep[] = { SAVE_ITEM(S3C2412_GPBSLPCON), SAVE_ITEM(S3C2412_GPCSLPCON), SAVE_ITEM(S3C2412_GPDSLPCON), - SAVE_ITEM(S3C2412_GPESLPCON), SAVE_ITEM(S3C2412_GPFSLPCON), SAVE_ITEM(S3C2412_GPGSLPCON), SAVE_ITEM(S3C2412_GPHSLPCON), diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c index 265cd3f567a..abf1599c9f9 100644 --- a/arch/arm/mach-s3c2412/s3c2412.c +++ b/arch/arm/mach-s3c2412/s3c2412.c @@ -168,6 +168,8 @@ void __init s3c2412_init_clocks(int xtal) fclk = s3c2410_get_pll(__raw_readl(S3C2410_MPLLCON), xtal*2); + clk_mpll.rate = fclk; + tmp = __raw_readl(S3C2410_CLKDIVN); /* work out clock scalings */ diff --git a/arch/arm/mach-s3c2412/sleep.S b/arch/arm/mach-s3c2412/sleep.S new file mode 100644 index 00000000000..db32cac4199 --- /dev/null +++ b/arch/arm/mach-s3c2412/sleep.S @@ -0,0 +1,68 @@ +/* linux/arch/arm/mach-s3c2412/sleep.S + * + * Copyright (c) 2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2412 Power Manager low-level sleep support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/linkage.h> +#include <asm/assembler.h> +#include <asm/hardware.h> +#include <asm/arch/map.h> + +#include <asm/arch/regs-irq.h> + + .text + + .global s3c2412_sleep_enter + +s3c2412_sleep_enter: + mov r0, #0 /* argument for coprocessors */ + ldr r1, =S3C2410_INTPND + ldr r2, =S3C2410_SRCPND + ldr r3, =S3C2410_EINTPEND + + teq r0, r0 + bl s3c2412_sleep_enter1 + teq pc, r0 + bl s3c2412_sleep_enter1 + + .align 5 + + /* this is called twice, first with the Z flag to ensure that the + * instructions have been loaded into the cache, and the second + * time to try and suspend the system. + */ +s3c2412_sleep_enter1: + mcr p15, 0, r0, c7, c10, 4 + mcrne p15, 0, r0, c7, c0, 4 + + /* if we return from here, it is because an interrupt was + * active when we tried to shutdown. Try and ack the IRQ and + * retry, as simply returning causes the system to lock. + */ + + ldrne r9, [ r1 ] + strne r9, [ r1 ] + ldrne r9, [ r2 ] + strne r9, [ r2 ] + ldrne r9, [ r3 ] + strne r9, [ r3 ] + bne s3c2412_sleep_enter1 + + mov pc, r14 diff --git a/arch/arm/mach-s3c2440/clock.c b/arch/arm/mach-s3c2440/clock.c index 79e2ea4adaf..184d804934c 100644 --- a/arch/arm/mach-s3c2440/clock.c +++ b/arch/arm/mach-s3c2440/clock.c @@ -111,14 +111,9 @@ static struct clk s3c2440_clk_ac97 = { static int s3c2440_clk_add(struct sys_device *sysdev) { - unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN); - unsigned long clkdivn; + struct clk *clock_upll; struct clk *clock_h; struct clk *clock_p; - struct clk *clock_upll; - - printk("S3C2440: Clock Support, DVS %s\n", - (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off"); clock_p = clk_get(NULL, "pclk"); clock_h = clk_get(NULL, "hclk"); @@ -129,21 +124,6 @@ static int s3c2440_clk_add(struct sys_device *sysdev) return -EINVAL; } - /* check rate of UPLL, and if it is near 96MHz, then change - * to using half the UPLL rate for the system */ - - if (clk_get_rate(clock_upll) > (94 * MHZ)) { - clk_usb_bus.rate = clk_get_rate(clock_upll) / 2; - - mutex_lock(&clocks_mutex); - - clkdivn = __raw_readl(S3C2410_CLKDIVN); - clkdivn |= S3C2440_CLKDIVN_UCLK; - __raw_writel(clkdivn, S3C2410_CLKDIVN); - - mutex_unlock(&clocks_mutex); - } - s3c2440_clk_cam.parent = clock_h; s3c2440_clk_ac97.parent = clock_p; s3c2440_clk_cam_upll.parent = clock_upll; diff --git a/arch/arm/mach-s3c2442/clock.c b/arch/arm/mach-s3c2442/clock.c index 5b9e830ac4d..2d030d439fe 100644 --- a/arch/arm/mach-s3c2442/clock.c +++ b/arch/arm/mach-s3c2442/clock.c @@ -115,14 +115,9 @@ static struct clk s3c2442_clk_cam_upll = { static int s3c2442_clk_add(struct sys_device *sysdev) { - unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN); - unsigned long clkdivn; + struct clk *clock_upll; struct clk *clock_h; struct clk *clock_p; - struct clk *clock_upll; - - printk("S3C2442: Clock Support, DVS %s\n", - (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off"); clock_p = clk_get(NULL, "pclk"); clock_h = clk_get(NULL, "hclk"); @@ -133,21 +128,6 @@ static int s3c2442_clk_add(struct sys_device *sysdev) return -EINVAL; } - /* check rate of UPLL, and if it is near 96MHz, then change - * to using half the UPLL rate for the system */ - - if (clk_get_rate(clock_upll) > (94 * MHZ)) { - clk_usb_bus.rate = clk_get_rate(clock_upll) / 2; - - mutex_lock(&clocks_mutex); - - clkdivn = __raw_readl(S3C2410_CLKDIVN); - clkdivn |= S3C2440_CLKDIVN_UCLK; - __raw_writel(clkdivn, S3C2410_CLKDIVN); - - mutex_unlock(&clocks_mutex); - } - s3c2442_clk_cam.parent = clock_h; s3c2442_clk_cam_upll.parent = clock_upll; diff --git a/arch/arm/mach-sa1100/ssp.c b/arch/arm/mach-sa1100/ssp.c index 59703c6fb29..06206ceb312 100644 --- a/arch/arm/mach-sa1100/ssp.c +++ b/arch/arm/mach-sa1100/ssp.c @@ -29,9 +29,8 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id) { unsigned int status = Ser4SSSR; - if (status & SSSR_ROR) { + if (status & SSSR_ROR) printk(KERN_WARNING "SSP: receiver overrun\n"); - } Ser4SSSR = SSSR_ROR; diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c index fdf7b016e7a..c2677368d6a 100644 --- a/arch/arm/mach-sa1100/time.c +++ b/arch/arm/mach-sa1100/time.c @@ -14,6 +14,7 @@ #include <linux/irq.h> #include <linux/timex.h> #include <linux/signal.h> +#include <linux/clocksource.h> #include <asm/mach/time.h> #include <asm/hardware.h> @@ -35,23 +36,6 @@ static int sa1100_set_rtc(void) return 0; } -/* IRQs are disabled before entering here from do_gettimeofday() */ -static unsigned long sa1100_gettimeoffset (void) -{ - unsigned long ticks_to_match, elapsed, usec; - - /* Get ticks before next timer match */ - ticks_to_match = OSMR0 - OSCR; - - /* We need elapsed ticks since last match */ - elapsed = LATCH - ticks_to_match; - - /* Now convert them to usec */ - usec = (unsigned long)(elapsed * (tick_nsec / 1000))/LATCH; - - return usec; -} - #ifdef CONFIG_NO_IDLE_HZ static unsigned long initial_match; static int match_posponed; @@ -62,8 +46,6 @@ sa1100_timer_interrupt(int irq, void *dev_id) { unsigned int next_match; - write_seqlock(&xtime_lock); - #ifdef CONFIG_NO_IDLE_HZ if (match_posponed) { match_posponed = 0; @@ -85,8 +67,6 @@ sa1100_timer_interrupt(int irq, void *dev_id) next_match = (OSMR0 += LATCH); } while ((signed long)(next_match - OSCR) <= 0); - write_sequnlock(&xtime_lock); - return IRQ_HANDLED; } @@ -96,6 +76,20 @@ static struct irqaction sa1100_timer_irq = { .handler = sa1100_timer_interrupt, }; +static cycle_t sa1100_read_oscr(void) +{ + return OSCR; +} + +static struct clocksource cksrc_sa1100_oscr = { + .name = "oscr", + .rating = 200, + .read = sa1100_read_oscr, + .mask = CLOCKSOURCE_MASK(32), + .shift = 20, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + static void __init sa1100_timer_init(void) { unsigned long flags; @@ -109,6 +103,11 @@ static void __init sa1100_timer_init(void) OIER = OIER_E0; /* enable match on timer 0 to cause interrupts */ OSMR0 = OSCR + LATCH; /* set initial match */ local_irq_restore(flags); + + cksrc_sa1100_oscr.mult = + clocksource_hz2mult(CLOCK_TICK_RATE, cksrc_sa1100_oscr.shift); + + clocksource_register(&cksrc_sa1100_oscr); } #ifdef CONFIG_NO_IDLE_HZ @@ -182,7 +181,6 @@ struct sys_timer sa1100_timer = { .init = sa1100_timer_init, .suspend = sa1100_timer_suspend, .resume = sa1100_timer_resume, - .offset = sa1100_gettimeoffset, #ifdef CONFIG_NO_IDLE_HZ .dyn_tick = &sa1100_dyn_tick, #endif diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c index a0545db2a34..09d9f33d407 100644 --- a/arch/arm/mach-shark/core.c +++ b/arch/arm/mach-shark/core.c @@ -82,9 +82,7 @@ static void __init shark_map_io(void) static irqreturn_t shark_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 7868f4dc1d0..cb104c2a732 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -171,8 +171,8 @@ config CPU_ARM925T # ARM926T config CPU_ARM926T bool "Support ARM926T processor" - depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_NS9XXX || ARCH_DAVINCI - default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_NS9XXX || ARCH_DAVINCI + depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI + default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI select CPU_32v5 select CPU_ABRT_EV5TJ select CPU_CACHE_VIVT @@ -345,8 +345,9 @@ config CPU_XSC3 # ARMv6 config CPU_V6 bool "Support ARM V6 processor" - depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3 + depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3 || ARCH_MSM7X00A default y if ARCH_MX3 + default y if ARCH_MSM7X00A select CPU_32v6 select CPU_ABRT_EV6 select CPU_CACHE_V6 diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index a8a7dab757e..28ad7ab1c0c 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -12,6 +12,7 @@ #include <linux/signal.h> #include <linux/mm.h> #include <linux/init.h> +#include <linux/kprobes.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -20,6 +21,29 @@ #include "fault.h" + +#ifdef CONFIG_KPROBES +static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) +{ + int ret = 0; + + if (!user_mode(regs)) { + /* kprobe_running() needs smp_processor_id() */ + preempt_disable(); + if (kprobe_running() && kprobe_fault_handler(regs, fsr)) + ret = 1; + preempt_enable(); + } + + return ret; +} +#else +static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) +{ + return 0; +} +#endif + /* * This is useful to dump out the page tables associated with * 'addr' in mm 'mm'. @@ -215,13 +239,16 @@ out: return fault; } -static int +static int __kprobes do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { struct task_struct *tsk; struct mm_struct *mm; int fault, sig, code; + if (notify_page_fault(regs, fsr)) + return 0; + tsk = current; mm = tsk->mm; @@ -311,7 +338,7 @@ no_context: * interrupt or a critical region, and should only copy the information * from the master page table, nothing more. */ -static int +static int __kprobes do_translation_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index 0360b1f14d1..45a77df668f 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -212,7 +212,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox) static irqreturn_t mbox_interrupt(int irq, void *p) { - struct omap_mbox *mbox = (struct omap_mbox *)p; + struct omap_mbox *mbox = p; if (is_mbox_irq(mbox, IRQ_TX)) __mbox_tx_interrupt(mbox); diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index f7b9ccdaacb..2af5bd5a134 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -98,9 +98,10 @@ static void omap_mcbsp_dump_reg(u8 id) static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id) { - struct omap_mcbsp * mcbsp_tx = (struct omap_mcbsp *)(dev_id); + struct omap_mcbsp *mcbsp_tx = dev_id; - DBG("TX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2)); + DBG("TX IRQ callback : 0x%x\n", + OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2)); complete(&mcbsp_tx->tx_irq_completion); return IRQ_HANDLED; @@ -108,9 +109,10 @@ static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id) static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id) { - struct omap_mcbsp * mcbsp_rx = (struct omap_mcbsp *)(dev_id); + struct omap_mcbsp *mcbsp_rx = dev_id; - DBG("RX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2)); + DBG("RX IRQ callback : 0x%x\n", + OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2)); complete(&mcbsp_rx->rx_irq_completion); return IRQ_HANDLED; @@ -118,9 +120,10 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id) static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data) { - struct omap_mcbsp * mcbsp_dma_tx = (struct omap_mcbsp *)(data); + struct omap_mcbsp *mcbsp_dma_tx = data; - DBG("TX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2)); + DBG("TX DMA callback : 0x%x\n", + OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2)); /* We can free the channels */ omap_free_dma(mcbsp_dma_tx->dma_tx_lch); @@ -131,9 +134,10 @@ static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data) static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data) { - struct omap_mcbsp * mcbsp_dma_rx = (struct omap_mcbsp *)(data); + struct omap_mcbsp *mcbsp_dma_rx = data; - DBG("RX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2)); + DBG("RX DMA callback : 0x%x\n", + OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2)); /* We can free the channels */ omap_free_dma(mcbsp_dma_rx->dma_rx_lch); diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile index 8e5ccaa1f03..131d20237dd 100644 --- a/arch/arm/plat-s3c24xx/Makefile +++ b/arch/arm/plat-s3c24xx/Makefile @@ -23,6 +23,7 @@ obj-y += clock.o obj-$(CONFIG_CPU_S3C244X) += s3c244x.o obj-$(CONFIG_CPU_S3C244X) += s3c244x-irq.o +obj-$(CONFIG_CPU_S3C244X) += s3c244x-clock.o obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += sleep.o diff --git a/arch/arm/plat-s3c24xx/clock.c b/arch/arm/plat-s3c24xx/clock.c index 79cda0faec8..99a44746f8f 100644 --- a/arch/arm/plat-s3c24xx/clock.c +++ b/arch/arm/plat-s3c24xx/clock.c @@ -172,6 +172,15 @@ int clk_set_rate(struct clk *clk, unsigned long rate) if (IS_ERR(clk)) return -EINVAL; + /* We do not default just do a clk->rate = rate as + * the clock may have been made this way by choice. + */ + + WARN_ON(clk->set_rate == NULL); + + if (clk->set_rate == NULL) + return -EINVAL; + mutex_lock(&clocks_mutex); ret = (clk->set_rate)(clk, rate); mutex_unlock(&clocks_mutex); @@ -213,6 +222,12 @@ EXPORT_SYMBOL(clk_set_parent); /* base clocks */ +static int clk_default_setrate(struct clk *clk, unsigned long rate) +{ + clk->rate = rate; + return 0; +} + struct clk clk_xtal = { .name = "xtal", .id = -1, @@ -224,6 +239,7 @@ struct clk clk_xtal = { struct clk clk_mpll = { .name = "mpll", .id = -1, + .set_rate = clk_default_setrate, }; struct clk clk_upll = { @@ -239,6 +255,7 @@ struct clk clk_f = { .rate = 0, .parent = &clk_mpll, .ctrlbit = 0, + .set_rate = clk_default_setrate, }; struct clk clk_h = { @@ -247,6 +264,7 @@ struct clk clk_h = { .rate = 0, .parent = NULL, .ctrlbit = 0, + .set_rate = clk_default_setrate, }; struct clk clk_p = { @@ -255,6 +273,7 @@ struct clk clk_p = { .rate = 0, .parent = NULL, .ctrlbit = 0, + .set_rate = clk_default_setrate, }; struct clk clk_usb_bus = { diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index aae1b9cbaf4..ac9ff1666fc 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -525,7 +525,8 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id, } } else if (chan->state == S3C2410_DMA_IDLE) { if (chan->flags & S3C2410_DMAF_AUTOSTART) { - s3c2410_dma_ctrl(chan->number, S3C2410_DMAOP_START); + s3c2410_dma_ctrl(chan->number | DMACH_LOW_LEVEL, + S3C2410_DMAOP_START); } } @@ -787,7 +788,7 @@ int s3c2410_dma_request(unsigned int channel, pr_debug("%s: channel initialised, %p\n", __FUNCTION__, chan); - return 0; + return chan->number | DMACH_LOW_LEVEL; } EXPORT_SYMBOL(s3c2410_dma_request); @@ -1173,6 +1174,7 @@ int s3c2410_dma_devconfig(int channel, chan->source = source; chan->dev_addr = devaddr; + chan->hw_cfg = hwcfg; switch (source) { case S3C2410_DMASRC_HW: @@ -1184,7 +1186,7 @@ int s3c2410_dma_devconfig(int channel, dma_wrreg(chan, S3C2410_DMA_DIDSTC, (0<<1) | (0<<0)); chan->addr_reg = dma_regaddr(chan, S3C2410_DMA_DIDST); - return 0; + break; case S3C2410_DMASRC_MEM: /* source is memory */ @@ -1195,11 +1197,19 @@ int s3c2410_dma_devconfig(int channel, dma_wrreg(chan, S3C2410_DMA_DIDSTC, hwcfg & 3); chan->addr_reg = dma_regaddr(chan, S3C2410_DMA_DISRC); - return 0; + break; + + default: + printk(KERN_ERR "dma%d: invalid source type (%d)\n", + channel, source); + + return -EINVAL; } - printk(KERN_ERR "dma%d: invalid source type (%d)\n", channel, source); - return -EINVAL; + if (dma_sel.direction != NULL) + (dma_sel.direction)(chan, chan->map, source); + + return 0; } EXPORT_SYMBOL(s3c2410_dma_devconfig); @@ -1227,6 +1237,10 @@ int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst) EXPORT_SYMBOL(s3c2410_dma_getposition); +static struct s3c2410_dma_chan *to_dma_chan(struct sys_device *dev) +{ + return container_of(dev, struct s3c2410_dma_chan, dev); +} /* system device class */ @@ -1234,7 +1248,7 @@ EXPORT_SYMBOL(s3c2410_dma_getposition); static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state) { - struct s3c2410_dma_chan *cp = container_of(dev, struct s3c2410_dma_chan, dev); + struct s3c2410_dma_chan *cp = to_dma_chan(dev); printk(KERN_DEBUG "suspending dma channel %d\n", cp->number); @@ -1256,6 +1270,24 @@ static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state) static int s3c2410_dma_resume(struct sys_device *dev) { + struct s3c2410_dma_chan *cp = to_dma_chan(dev); + unsigned int no = cp->number | DMACH_LOW_LEVEL; + + /* restore channel's hardware configuration */ + + if (!cp->in_use) + return 0; + + printk(KERN_INFO "dma%d: restoring configuration\n", cp->number); + + s3c2410_dma_config(no, cp->xfer_unit, cp->dcon); + s3c2410_dma_devconfig(no, cp->source, cp->hw_cfg, cp->dev_addr); + + /* re-select the dma source for this channel */ + + if (cp->map != NULL) + dma_sel.select(cp, cp->map); + return 0; } @@ -1445,6 +1477,7 @@ static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel) found: dmach = &s3c2410_chans[ch]; + dmach->map = ch_map; dma_chan_map[channel] = dmach; /* select the channel */ diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c index ec3a09c4d18..ee99dcc7f0b 100644 --- a/arch/arm/plat-s3c24xx/gpio.c +++ b/arch/arm/plat-s3c24xx/gpio.c @@ -122,6 +122,19 @@ void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) EXPORT_SYMBOL(s3c2410_gpio_pullup); +int s3c2410_gpio_getpull(unsigned int pin) +{ + void __iomem *base = S3C24XX_GPIO_BASE(pin); + unsigned long offs = S3C2410_GPIO_OFFSET(pin); + + if (pin < S3C2410_GPIO_BANKB) + return -EINVAL; + + return (__raw_readl(base + 0x08) & (1L << offs)) ? 1 : 0; +} + +EXPORT_SYMBOL(s3c2410_gpio_getpull); + void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) { void __iomem *base = S3C24XX_GPIO_BASE(pin); @@ -186,3 +199,19 @@ int s3c2410_gpio_getirq(unsigned int pin) } EXPORT_SYMBOL(s3c2410_gpio_getirq); + +int s3c2410_gpio_irq2pin(unsigned int irq) +{ + if (irq >= IRQ_EINT0 && irq <= IRQ_EINT3) + return S3C2410_GPF0 + (irq - IRQ_EINT0); + + if (irq >= IRQ_EINT4 && irq <= IRQ_EINT7) + return S3C2410_GPF4 + (irq - IRQ_EINT4); + + if (irq >= IRQ_EINT8 && irq <= IRQ_EINT23) + return S3C2410_GPG0 + (irq - IRQ_EINT8); + + return -EINVAL; +} + +EXPORT_SYMBOL(s3c2410_gpio_irq2pin); diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c index 8fbc8847026..d486f511256 100644 --- a/arch/arm/plat-s3c24xx/irq.c +++ b/arch/arm/plat-s3c24xx/irq.c @@ -187,7 +187,7 @@ struct irq_chip s3c_irq_level_chip = { .set_wake = s3c_irq_wake }; -static struct irq_chip s3c_irq_chip = { +struct irq_chip s3c_irq_chip = { .name = "s3c", .ack = s3c_irq_ack, .mask = s3c_irq_mask, diff --git a/arch/arm/plat-s3c24xx/pm.c b/arch/arm/plat-s3c24xx/pm.c index 4fdb3117744..bf5581a9aee 100644 --- a/arch/arm/plat-s3c24xx/pm.c +++ b/arch/arm/plat-s3c24xx/pm.c @@ -83,38 +83,39 @@ static struct sleep_save core_save[] = { SAVE_ITEM(S3C2410_REFRESH), }; -static struct sleep_save gpio_save[] = { - SAVE_ITEM(S3C2410_GPACON), - SAVE_ITEM(S3C2410_GPADAT), - - SAVE_ITEM(S3C2410_GPBCON), - SAVE_ITEM(S3C2410_GPBDAT), - SAVE_ITEM(S3C2410_GPBUP), - - SAVE_ITEM(S3C2410_GPCCON), - SAVE_ITEM(S3C2410_GPCDAT), - SAVE_ITEM(S3C2410_GPCUP), - - SAVE_ITEM(S3C2410_GPDCON), - SAVE_ITEM(S3C2410_GPDDAT), - SAVE_ITEM(S3C2410_GPDUP), - - SAVE_ITEM(S3C2410_GPECON), - SAVE_ITEM(S3C2410_GPEDAT), - SAVE_ITEM(S3C2410_GPEUP), - - SAVE_ITEM(S3C2410_GPFCON), - SAVE_ITEM(S3C2410_GPFDAT), - SAVE_ITEM(S3C2410_GPFUP), - - SAVE_ITEM(S3C2410_GPGCON), - SAVE_ITEM(S3C2410_GPGDAT), - SAVE_ITEM(S3C2410_GPGUP), - - SAVE_ITEM(S3C2410_GPHCON), - SAVE_ITEM(S3C2410_GPHDAT), - SAVE_ITEM(S3C2410_GPHUP), +static struct gpio_sleep { + void __iomem *base; + unsigned int gpcon; + unsigned int gpdat; + unsigned int gpup; +} gpio_save[] = { + [0] = { + .base = S3C2410_GPACON, + }, + [1] = { + .base = S3C2410_GPBCON, + }, + [2] = { + .base = S3C2410_GPCCON, + }, + [3] = { + .base = S3C2410_GPDCON, + }, + [4] = { + .base = S3C2410_GPECON, + }, + [5] = { + .base = S3C2410_GPFCON, + }, + [6] = { + .base = S3C2410_GPGCON, + }, + [7] = { + .base = S3C2410_GPHCON, + }, +}; +static struct sleep_save misc_save[] = { SAVE_ITEM(S3C2410_DCLKCON), }; @@ -486,6 +487,184 @@ static void s3c2410_pm_configure_extint(void) } } +/* offsets for CON/DAT/UP registers */ + +#define OFFS_CON (S3C2410_GPACON - S3C2410_GPACON) +#define OFFS_DAT (S3C2410_GPADAT - S3C2410_GPACON) +#define OFFS_UP (S3C2410_GPBUP - S3C2410_GPBCON) + +/* s3c2410_pm_save_gpios() + * + * Save the state of the GPIOs + */ + +static void s3c2410_pm_save_gpios(void) +{ + struct gpio_sleep *gps = gpio_save; + unsigned int gpio; + + for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) { + void __iomem *base = gps->base; + + gps->gpcon = __raw_readl(base + OFFS_CON); + gps->gpdat = __raw_readl(base + OFFS_DAT); + + if (gpio > 0) + gps->gpup = __raw_readl(base + OFFS_UP); + + } +} + +/* Test whether the given masked+shifted bits of an GPIO configuration + * are one of the SFN (special function) modes. */ + +static inline int is_sfn(unsigned long con) +{ + return (con == 2 || con == 3); +} + +/* Test if the given masked+shifted GPIO configuration is an input */ + +static inline int is_in(unsigned long con) +{ + return con == 0; +} + +/* Test if the given masked+shifted GPIO configuration is an output */ + +static inline int is_out(unsigned long con) +{ + return con == 1; +} + +/* s3c2410_pm_restore_gpio() + * + * Restore one of the GPIO banks that was saved during suspend. This is + * not as simple as once thought, due to the possibility of glitches + * from the order that the CON and DAT registers are set in. + * + * The three states the pin can be are {IN,OUT,SFN} which gives us 9 + * combinations of changes to check. Three of these, if the pin stays + * in the same configuration can be discounted. This leaves us with + * the following: + * + * { IN => OUT } Change DAT first + * { IN => SFN } Change CON first + * { OUT => SFN } Change CON first, so new data will not glitch + * { OUT => IN } Change CON first, so new data will not glitch + * { SFN => IN } Change CON first + * { SFN => OUT } Change DAT first, so new data will not glitch [1] + * + * We do not currently deal with the UP registers as these control + * weak resistors, so a small delay in change should not need to bring + * these into the calculations. + * + * [1] this assumes that writing to a pin DAT whilst in SFN will set the + * state for when it is next output. + */ + +static void s3c2410_pm_restore_gpio(int index, struct gpio_sleep *gps) +{ + void __iomem *base = gps->base; + unsigned long gps_gpcon = gps->gpcon; + unsigned long gps_gpdat = gps->gpdat; + unsigned long old_gpcon; + unsigned long old_gpdat; + unsigned long old_gpup = 0x0; + unsigned long gpcon; + int nr; + + old_gpcon = __raw_readl(base + OFFS_CON); + old_gpdat = __raw_readl(base + OFFS_DAT); + + if (base == S3C2410_GPACON) { + /* GPACON only has one bit per control / data and no PULLUPs. + * GPACON[x] = 0 => Output, 1 => SFN */ + + /* first set all SFN bits to SFN */ + + gpcon = old_gpcon | gps->gpcon; + __raw_writel(gpcon, base + OFFS_CON); + + /* now set all the other bits */ + + __raw_writel(gps_gpdat, base + OFFS_DAT); + __raw_writel(gps_gpcon, base + OFFS_CON); + } else { + unsigned long old, new, mask; + unsigned long change_mask = 0x0; + + old_gpup = __raw_readl(base + OFFS_UP); + + /* Create a change_mask of all the items that need to have + * their CON value changed before their DAT value, so that + * we minimise the work between the two settings. + */ + + for (nr = 0, mask = 0x03; nr < 32; nr += 2, mask <<= 2) { + old = (old_gpcon & mask) >> nr; + new = (gps_gpcon & mask) >> nr; + + /* If there is no change, then skip */ + + if (old == new) + continue; + + /* If both are special function, then skip */ + + if (is_sfn(old) && is_sfn(new)) + continue; + + /* Change is IN => OUT, do not change now */ + + if (is_in(old) && is_out(new)) + continue; + + /* Change is SFN => OUT, do not change now */ + + if (is_sfn(old) && is_out(new)) + continue; + + /* We should now be at the case of IN=>SFN, + * OUT=>SFN, OUT=>IN, SFN=>IN. */ + + change_mask |= mask; + } + + /* Write the new CON settings */ + + gpcon = old_gpcon & ~change_mask; + gpcon |= gps_gpcon & change_mask; + + __raw_writel(gpcon, base + OFFS_CON); + + /* Now change any items that require DAT,CON */ + + __raw_writel(gps_gpdat, base + OFFS_DAT); + __raw_writel(gps_gpcon, base + OFFS_CON); + __raw_writel(gps->gpup, base + OFFS_UP); + } + + DBG("GPIO[%d] CON %08lx => %08lx, DAT %08lx => %08lx\n", + index, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); +} + + +/** s3c2410_pm_restore_gpios() + * + * Restore the state of the GPIOs + */ + +static void s3c2410_pm_restore_gpios(void) +{ + struct gpio_sleep *gps = gpio_save; + int gpio; + + for (gpio = 0; gpio < ARRAY_SIZE(gpio_save); gpio++, gps++) { + s3c2410_pm_restore_gpio(gpio, gps); + } +} + void (*pm_cpu_prep)(void); void (*pm_cpu_sleep)(void); @@ -535,7 +714,8 @@ static int s3c2410_pm_enter(suspend_state_t state) /* save all necessary core registers not covered by the drivers */ - s3c2410_pm_do_save(gpio_save, ARRAY_SIZE(gpio_save)); + s3c2410_pm_save_gpios(); + s3c2410_pm_do_save(misc_save, ARRAY_SIZE(misc_save)); s3c2410_pm_do_save(core_save, ARRAY_SIZE(core_save)); s3c2410_pm_do_save(uart_save, ARRAY_SIZE(uart_save)); @@ -585,8 +765,9 @@ static int s3c2410_pm_enter(suspend_state_t state) /* restore the system state */ s3c2410_pm_do_restore_core(core_save, ARRAY_SIZE(core_save)); - s3c2410_pm_do_restore(gpio_save, ARRAY_SIZE(gpio_save)); + s3c2410_pm_do_restore(misc_save, ARRAY_SIZE(misc_save)); s3c2410_pm_do_restore(uart_save, ARRAY_SIZE(uart_save)); + s3c2410_pm_restore_gpios(); s3c2410_pm_debug_init(); diff --git a/arch/arm/plat-s3c24xx/s3c244x-clock.c b/arch/arm/plat-s3c24xx/s3c244x-clock.c new file mode 100644 index 00000000000..faf3e0f9f4e --- /dev/null +++ b/arch/arm/plat-s3c24xx/s3c244x-clock.c @@ -0,0 +1,137 @@ +/* linux/arch/arm/plat-s3c24xx/s3c24xx-clock.c + * + * Copyright (c) 2004-2005,2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2440/S3C2442 Common clock support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/sysdev.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/mutex.h> +#include <linux/clk.h> + +#include <asm/hardware.h> +#include <asm/atomic.h> +#include <asm/irq.h> +#include <asm/io.h> + +#include <asm/arch/regs-clock.h> + +#include <asm/plat-s3c24xx/clock.h> +#include <asm/plat-s3c24xx/cpu.h> + +static int s3c2440_setparent_armclk(struct clk *clk, struct clk *parent) +{ + unsigned long camdivn; + unsigned long dvs; + + if (parent == &clk_f) + dvs = 0; + else if (parent == &clk_h) + dvs = S3C2440_CAMDIVN_DVSEN; + else + return -EINVAL; + + clk->parent = parent; + + camdivn = __raw_readl(S3C2440_CAMDIVN); + camdivn &= ~S3C2440_CAMDIVN_DVSEN; + camdivn |= dvs; + __raw_writel(camdivn, S3C2440_CAMDIVN); + + return 0; +} + +static struct clk clk_arm = { + .name = "armclk", + .id = -1, + .set_parent = s3c2440_setparent_armclk, +}; + +static int s3c244x_clk_add(struct sys_device *sysdev) +{ + unsigned long camdivn = __raw_readl(S3C2440_CAMDIVN); + unsigned long clkdivn; + struct clk *clock_upll; + int ret; + + printk("S3C244X: Clock Support, DVS %s\n", + (camdivn & S3C2440_CAMDIVN_DVSEN) ? "on" : "off"); + + clk_arm.parent = (camdivn & S3C2440_CAMDIVN_DVSEN) ? &clk_h : &clk_f; + + ret = s3c24xx_register_clock(&clk_arm); + if (ret < 0) { + printk(KERN_ERR "S3C24XX: Failed to add armclk (%d)\n", ret); + return ret; + } + + clock_upll = clk_get(NULL, "upll"); + if (IS_ERR(clock_upll)) { + printk(KERN_ERR "S3C244X: Failed to get upll clock\n"); + return -ENOENT; + } + + /* check rate of UPLL, and if it is near 96MHz, then change + * to using half the UPLL rate for the system */ + + if (clk_get_rate(clock_upll) > (94 * MHZ)) { + clk_usb_bus.rate = clk_get_rate(clock_upll) / 2; + + mutex_lock(&clocks_mutex); + + clkdivn = __raw_readl(S3C2410_CLKDIVN); + clkdivn |= S3C2440_CLKDIVN_UCLK; + __raw_writel(clkdivn, S3C2410_CLKDIVN); + + mutex_unlock(&clocks_mutex); + } + + return 0; +} + +static struct sysdev_driver s3c2440_clk_driver = { + .add = s3c244x_clk_add, +}; + +static int s3c2440_clk_init(void) +{ + return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver); +} + +arch_initcall(s3c2440_clk_init); + +static struct sysdev_driver s3c2442_clk_driver = { + .add = s3c244x_clk_add, +}; + +static int s3c2442_clk_init(void) +{ + return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_clk_driver); +} + +arch_initcall(s3c2442_clk_init); diff --git a/arch/arm/tools/mach-types b/arch/arm/tools/mach-types index 0a9a5e7f62e..7ed58c0c24c 100644 --- a/arch/arm/tools/mach-types +++ b/arch/arm/tools/mach-types @@ -12,7 +12,7 @@ # # http://www.arm.linux.org.uk/developer/machines/?action=new # -# Last update: Fri May 11 19:53:41 2007 +# Last update: Sat Jan 26 14:45:34 2008 # # machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number # @@ -266,7 +266,7 @@ stork_egg ARCH_STORK_EGG STORK_EGG 248 wismo SA1100_WISMO WISMO 249 ezlinx ARCH_EZLINX EZLINX 250 at91rm9200 ARCH_AT91RM9200 AT91RM9200 251 -orion ARCH_ORION ORION 252 +adtech_orion ARCH_ADTECH_ORION ADTECH_ORION 252 neptune ARCH_NEPTUNE NEPTUNE 253 hackkit SA1100_HACKKIT HACKKIT 254 pxa_wins30 ARCH_PXA_WINS30 PXA_WINS30 255 @@ -661,7 +661,6 @@ a9200ec MACH_A9200EC A9200EC 645 pnx0105 MACH_PNX0105 PNX0105 646 adcpoecpu MACH_ADCPOECPU ADCPOECPU 647 csb637 MACH_CSB637 CSB637 648 -ml69q6203 MACH_ML69Q6203 ML69Q6203 649 mb9200 MACH_MB9200 MB9200 650 kulun MACH_KULUN KULUN 651 snapper MACH_SNAPPER SNAPPER 652 @@ -953,7 +952,6 @@ fred_jack MACH_FRED_JACK FRED_JACK 939 ttg_color1 MACH_TTG_COLOR1 TTG_COLOR1 940 nxeb500hmi MACH_NXEB500HMI NXEB500HMI 941 netdcu8 MACH_NETDCU8 NETDCU8 942 -ml675050_cpu_boa MACH_ML675050_CPU_BOA ML675050_CPU_BOA 943 ng_fvx538 MACH_NG_FVX538 NG_FVX538 944 ng_fvs338 MACH_NG_FVS338 NG_FVS338 945 pnx4103 MACH_PNX4103 PNX4103 946 @@ -1148,7 +1146,7 @@ aidx270 MACH_AIDX270 AIDX270 1134 rema MACH_REMA REMA 1135 bps1000 MACH_BPS1000 BPS1000 1136 hw90350 MACH_HW90350 HW90350 1137 -omap_sdp3430 MACH_OMAP_SDP3430 OMAP_SDP3430 1138 +omap_3430sdp MACH_OMAP_3430SDP OMAP_3430SDP 1138 bluetouch MACH_BLUETOUCH BLUETOUCH 1139 vstms MACH_VSTMS VSTMS 1140 xsbase270 MACH_XSBASE270 XSBASE270 1141 @@ -1214,7 +1212,7 @@ osstbox MACH_OSSTBOX OSSTBOX 1203 kbat9261 MACH_KBAT9261 KBAT9261 1204 ct1100 MACH_CT1100 CT1100 1205 akcppxa MACH_AKCPPXA AKCPPXA 1206 -zevio_1020 MACH_ZEVIO_1020 ZEVIO_1020 1207 +ochaya1020 MACH_OCHAYA1020 OCHAYA1020 1207 hitrack MACH_HITRACK HITRACK 1208 syme1 MACH_SYME1 SYME1 1209 syhl1 MACH_SYHL1 SYHL1 1210 @@ -1299,7 +1297,7 @@ xp179 MACH_XP179 XP179 1290 h4300 MACH_H4300 H4300 1291 goramo_mlr MACH_GORAMO_MLR GORAMO_MLR 1292 mxc30020evb MACH_MXC30020EVB MXC30020EVB 1293 -adsbitsymx MACH_ADSBITSIMX ADSBITSIMX 1294 +adsbitsyg5 MACH_ADSBITSYG5 ADSBITSYG5 1294 adsportalplus MACH_ADSPORTALPLUS ADSPORTALPLUS 1295 mmsp2plus MACH_MMSP2PLUS MMSP2PLUS 1296 em_x270 MACH_EM_X270 EM_X270 1297 @@ -1367,3 +1365,249 @@ db88f5281 MACH_DB88F5281 DB88F5281 1358 csb726 MACH_CSB726 CSB726 1359 tik27 MACH_TIK27 TIK27 1360 mx_uc7420 MACH_MX_UC7420 MX_UC7420 1361 +rirm3 MACH_RIRM3 RIRM3 1362 +pelco_odyssey MACH_PELCO_ODYSSEY PELCO_ODYSSEY 1363 +adx_abox MACH_ADX_ABOX ADX_ABOX 1365 +adx_tpid MACH_ADX_TPID ADX_TPID 1366 +minicheck MACH_MINICHECK MINICHECK 1367 +idam MACH_IDAM IDAM 1368 +mario_mx MACH_MARIO_MX MARIO_MX 1369 +vi1888 MACH_VI1888 VI1888 1370 +zr4230 MACH_ZR4230 ZR4230 1371 +t1_ix_blue MACH_T1_IX_BLUE T1_IX_BLUE 1372 +syhq2 MACH_SYHQ2 SYHQ2 1373 +computime_r3 MACH_COMPUTIME_R3 COMPUTIME_R3 1374 +oratis MACH_ORATIS ORATIS 1375 +mikko MACH_MIKKO MIKKO 1376 +holon MACH_HOLON HOLON 1377 +olip8 MACH_OLIP8 OLIP8 1378 +ghi270hg MACH_GHI270HG GHI270HG 1379 +davinci_dm6467_evm MACH_DAVINCI_DM6467_EVM DAVINCI_DM6467_EVM 1380 +davinci_dm355_evm MACH_DAVINCI_DM350_EVM DAVINCI_DM350_EVM 1381 +blackriver MACH_BLACKRIVER BLACKRIVER 1383 +sandgate_wp MACH_SANDGATEWP SANDGATEWP 1384 +cdotbwsg MACH_CDOTBWSG CDOTBWSG 1385 +quark963 MACH_QUARK963 QUARK963 1386 +csb735 MACH_CSB735 CSB735 1387 +littleton MACH_LITTLETON LITTLETON 1388 +mio_p550 MACH_MIO_P550 MIO_P550 1389 +motion2440 MACH_MOTION2440 MOTION2440 1390 +imm500 MACH_IMM500 IMM500 1391 +homematic MACH_HOMEMATIC HOMEMATIC 1392 +ermine MACH_ERMINE ERMINE 1393 +kb9202b MACH_KB9202B KB9202B 1394 +hs1xx MACH_HS1XX HS1XX 1395 +studentmate2440 MACH_STUDENTMATE2440 STUDENTMATE2440 1396 +arvoo_l1_z1 MACH_ARVOO_L1_Z1 ARVOO_L1_Z1 1397 +dep2410k MACH_DEP2410K DEP2410K 1398 +xxsvideo MACH_XXSVIDEO XXSVIDEO 1399 +im4004 MACH_IM4004 IM4004 1400 +ochaya1050 MACH_OCHAYA1050 OCHAYA1050 1401 +lep9261 MACH_LEP9261 LEP9261 1402 +svenmeb MACH_SVENMEB SVENMEB 1403 +fortunet2ne MACH_FORTUNET2NE FORTUNET2NE 1404 +nxhx MACH_NXHX NXHX 1406 +realview_pb11mp MACH_REALVIEW_PB11MP REALVIEW_PB11MP 1407 +ids500 MACH_IDS500 IDS500 1408 +ors_n725 MACH_ORS_N725 ORS_N725 1409 +hsdarm MACH_HSDARM HSDARM 1410 +sha_pon003 MACH_SHA_PON003 SHA_PON003 1411 +sha_pon004 MACH_SHA_PON004 SHA_PON004 1412 +sha_pon007 MACH_SHA_PON007 SHA_PON007 1413 +sha_pon011 MACH_SHA_PON011 SHA_PON011 1414 +h6042 MACH_H6042 H6042 1415 +h6043 MACH_H6043 H6043 1416 +looxc550 MACH_LOOXC550 LOOXC550 1417 +cnty_titan MACH_CNTY_TITAN CNTY_TITAN 1418 +app3xx MACH_APP3XX APP3XX 1419 +sideoatsgrama MACH_SIDEOATSGRAMA SIDEOATSGRAMA 1420 +xscale_palmt700p MACH_XSCALE_PALMT700P XSCALE_PALMT700P 1421 +xscale_palmt700w MACH_XSCALE_PALMT700W XSCALE_PALMT700W 1422 +xscale_palmt750 MACH_XSCALE_PALMT750 XSCALE_PALMT750 1423 +xscale_palmt755p MACH_XSCALE_PALMT755P XSCALE_PALMT755P 1424 +ezreganut9200 MACH_EZREGANUT9200 EZREGANUT9200 1425 +sarge MACH_SARGE SARGE 1426 +a696 MACH_A696 A696 1427 +turtle1916 MACH_TURTLE TURTLE 1428 +mx27_3ds MACH_MX27_3DS MX27_3DS 1430 +bishop MACH_BISHOP BISHOP 1431 +pxx MACH_PXX PXX 1432 +redwood MACH_REDWOOD REDWOOD 1433 +omap_2430dlp MACH_OMAP_2430DLP OMAP_2430DLP 1436 +omap_2430osk MACH_OMAP_2430OSK OMAP_2430OSK 1437 +sardine MACH_SARDINE SARDINE 1438 +halibut MACH_HALIBUT HALIBUT 1439 +trout MACH_TROUT TROUT 1440 +goldfish MACH_GOLDFISH GOLDFISH 1441 +gesbc2440 MACH_GESBC2440 GESBC2440 1442 +nomad MACH_NOMAD NOMAD 1443 +rosalind MACH_ROSALIND ROSALIND 1444 +cc9p9215 MACH_CC9P9215 CC9P9215 1445 +cc9p9210 MACH_CC9P9210 CC9P9210 1446 +cc9p9215js MACH_CC9P9215JS CC9P9215JS 1447 +cc9p9210js MACH_CC9P9210JS CC9P9210JS 1448 +nasffe MACH_NASFFE NASFFE 1449 +tn2x0bd MACH_TN2X0BD TN2X0BD 1450 +gwmpxa MACH_GWMPXA GWMPXA 1451 +exyplus MACH_EXYPLUS EXYPLUS 1452 +jadoo21 MACH_JADOO21 JADOO21 1453 +looxn560 MACH_LOOXN560 LOOXN560 1454 +bonsai MACH_BONSAI BONSAI 1455 +adsmilgato MACH_ADSMILGATO ADSMILGATO 1456 +gba MACH_GBA GBA 1457 +h6044 MACH_H6044 H6044 1458 +app MACH_APP APP 1459 +tct_hammer MACH_TCT_HAMMER TCT_HAMMER 1460 +herald MACH_HERMES HERMES 1461 +artemis MACH_ARTEMIS ARTEMIS 1462 +htctitan MACH_HTCTITAN HTCTITAN 1463 +qranium MACH_QRANIUM QRANIUM 1464 +adx_wsc2 MACH_ADX_WSC2 ADX_WSC2 1465 +adx_medinet MACH_ADX_MEDINET ADX_MEDINET 1466 +bboard MACH_BBOARD BBOARD 1467 +cambria MACH_CAMBRIA CAMBRIA 1468 +mt7xxx MACH_MT7XXX MT7XXX 1469 +matrix512 MACH_MATRIX512 MATRIX512 1470 +matrix522 MACH_MATRIX522 MATRIX522 1471 +ipac5010 MACH_IPAC5010 IPAC5010 1472 +sakura MACH_SAKURA SAKURA 1473 +grocx MACH_GROCX GROCX 1474 +pm9263 MACH_PM9263 PM9263 1475 +sim_one MACH_SIM_ONE SIM_ONE 1476 +acq132 MACH_ACQ132 ACQ132 1477 +datr MACH_DATR DATR 1478 +actux1 MACH_ACTUX1 ACTUX1 1479 +actux2 MACH_ACTUX2 ACTUX2 1480 +actux3 MACH_ACTUX3 ACTUX3 1481 +flexit MACH_FLEXIT FLEXIT 1482 +bh2x0bd MACH_BH2X0BD BH2X0BD 1483 +atb2002 MACH_ATB2002 ATB2002 1484 +xenon MACH_XENON XENON 1485 +fm607 MACH_FM607 FM607 1486 +matrix514 MACH_MATRIX514 MATRIX514 1487 +matrix524 MACH_MATRIX524 MATRIX524 1488 +inpod MACH_INPOD INPOD 1489 +jive MACH_JIVE JIVE 1490 +tll_mx21 MACH_TLL_MX21 TLL_MX21 1491 +sbc2800 MACH_SBC2800 SBC2800 1492 +cc7ucamry MACH_CC7UCAMRY CC7UCAMRY 1493 +ubisys_p9_sc15 MACH_UBISYS_P9_SC15 UBISYS_P9_SC15 1494 +ubisys_p9_ssc2d10 MACH_UBISYS_P9_SSC2D10 UBISYS_P9_SSC2D10 1495 +ubisys_p9_rcu3 MACH_UBISYS_P9_RCU3 UBISYS_P9_RCU3 1496 +aml_m8000 MACH_AML_M8000 AML_M8000 1497 +snapper_270 MACH_SNAPPER_270 SNAPPER_270 1498 +omap_bbx MACH_OMAP_BBX OMAP_BBX 1499 +ucn2410 MACH_UCN2410 UCN2410 1500 +sam9_l9260 MACH_SAM9_L9260 SAM9_L9260 1501 +eti_c2 MACH_ETI_C2 ETI_C2 1502 +avalanche MACH_AVALANCHE AVALANCHE 1503 +realview_pb1176 MACH_REALVIEW_PB1176 REALVIEW_PB1176 1504 +dp1500 MACH_DP1500 DP1500 1505 +apple_iphone MACH_APPLE_IPHONE APPLE_IPHONE 1506 +yl9200 MACH_YL9200 YL9200 1507 +rd88f5182 MACH_RD88F5182 RD88F5182 1508 +kurobox_pro MACH_KUROBOX_PRO KUROBOX_PRO 1509 +se_poet MACH_SE_POET SE_POET 1510 +mx31_3ds MACH_MX31_3DS MX31_3DS 1511 +r270 MACH_R270 R270 1512 +armour21 MACH_ARMOUR21 ARMOUR21 1513 +dt2 MACH_DT2 DT2 1514 +vt4 MACH_VT4 VT4 1515 +tyco320 MACH_TYCO320 TYCO320 1516 +adma MACH_ADMA ADMA 1517 +wp188 MACH_WP188 WP188 1518 +corsica MACH_CORSICA CORSICA 1519 +bigeye MACH_BIGEYE BIGEYE 1520 +tll5000 MACH_TLL5000 TLL5000 1522 +hni270 MACH_HNI_X270 HNI_X270 1523 +qong MACH_QONG QONG 1524 +tcompact MACH_TCOMPACT TCOMPACT 1525 +puma5 MACH_PUMA5 PUMA5 1526 +elara MACH_ELARA ELARA 1527 +ellington MACH_ELLINGTON ELLINGTON 1528 +xda_atom MACH_XDA_ATOM XDA_ATOM 1529 +energizer2 MACH_ENERGIZER2 ENERGIZER2 1530 +odin MACH_ODIN ODIN 1531 +actux4 MACH_ACTUX4 ACTUX4 1532 +esl_omap MACH_ESL_OMAP ESL_OMAP 1533 +omap2evm MACH_OMAP2EVM OMAP2EVM 1534 +omap3evm MACH_OMAP3EVM OMAP3EVM 1535 +adx_pcu57 MACH_ADX_PCU57 ADX_PCU57 1536 +monaco MACH_MONACO MONACO 1537 +levante MACH_LEVANTE LEVANTE 1538 +tmxipx425 MACH_TMXIPX425 TMXIPX425 1539 +leep MACH_LEEP LEEP 1540 +raad MACH_RAAD RAAD 1541 +dns323 MACH_DNS323 DNS323 1542 +ap1000 MACH_AP1000 AP1000 1543 +a9sam6432 MACH_A9SAM6432 A9SAM6432 1544 +shiny MACH_SHINY SHINY 1545 +omap3_beagle MACH_OMAP3_BEAGLE OMAP3_BEAGLE 1546 +csr_bdb2 MACH_CSR_BDB2 CSR_BDB2 1547 +nokia_n810 MACH_NOKIA_N810 NOKIA_N810 1548 +c270 MACH_C270 C270 1549 +sentry MACH_SENTRY SENTRY 1550 +pcm038 MACH_PCM038 PCM038 1551 +anc300 MACH_ANC300 ANC300 1552 +htckaiser MACH_HTCKAISER HTCKAISER 1553 +sbat100 MACH_SBAT100 SBAT100 1554 +modunorm MACH_MODUNORM MODUNORM 1555 +pelos_twarm MACH_PELOS_TWARM PELOS_TWARM 1556 +flank MACH_FLANK FLANK 1557 +sirloin MACH_SIRLOIN SIRLOIN 1558 +brisket MACH_BRISKET BRISKET 1559 +chuck MACH_CHUCK CHUCK 1560 +otter MACH_OTTER OTTER 1561 +davinci_ldk MACH_DAVINCI_LDK DAVINCI_LDK 1562 +phreedom MACH_PHREEDOM PHREEDOM 1563 +sg310 MACH_SG310 SG310 1564 +ts_x09 MACH_TS209 TS209 1565 +at91cap9adk MACH_AT91CAP9ADK AT91CAP9ADK 1566 +tion9315 MACH_TION9315 TION9315 1567 +mast MACH_MAST MAST 1568 +pfw MACH_PFW PFW 1569 +yl_p2440 MACH_YL_P2440 YL_P2440 1570 +zsbc32 MACH_ZSBC32 ZSBC32 1571 +omap_pace2 MACH_OMAP_PACE2 OMAP_PACE2 1572 +imx_pace2 MACH_IMX_PACE2 IMX_PACE2 1573 +mx31moboard MACH_MX31MOBOARD MX31MOBOARD 1574 +mx37_3ds MACH_MX37_3DS MX37_3DS 1575 +rcc MACH_RCC RCC 1576 +dmp MACH_ARM9 ARM9 1577 +vision_ep9307 MACH_VISION_EP9307 VISION_EP9307 1578 +scly1000 MACH_SCLY1000 SCLY1000 1579 +fontel_ep MACH_FONTEL_EP FONTEL_EP 1580 +voiceblue3g MACH_VOICEBLUE3G VOICEBLUE3G 1581 +tt9200 MACH_TT9200 TT9200 1582 +digi2410 MACH_DIGI2410 DIGI2410 1583 +terastation_pro2 MACH_TERASTATION_PRO2 TERASTATION_PRO2 1584 +linkstation_pro MACH_LINKSTATION_PRO LINKSTATION_PRO 1585 +motorola_a780 MACH_MOTOROLA_A780 MOTOROLA_A780 1587 +motorola_e6 MACH_MOTOROLA_E6 MOTOROLA_E6 1588 +motorola_e2 MACH_MOTOROLA_E2 MOTOROLA_E2 1589 +motorola_e680 MACH_MOTOROLA_E680 MOTOROLA_E680 1590 +ur2410 MACH_UR2410 UR2410 1591 +tas9261 MACH_TAS9261 TAS9261 1592 +davinci_hermes_hd MACH_HERMES_HD HERMES_HD 1593 +davinci_perseo_hd MACH_PERSEO_HD PERSEO_HD 1594 +stargazer2 MACH_STARGAZER2 STARGAZER2 1595 +e350 MACH_E350 E350 1596 +wpcm450 MACH_WPCM450 WPCM450 1597 +cartesio MACH_CARTESIO CARTESIO 1598 +toybox MACH_TOYBOX TOYBOX 1599 +tx27 MACH_TX27 TX27 1600 +ts409 MACH_TS409 TS409 1601 +p300 MACH_P300 P300 1602 +xdacomet MACH_XDACOMET XDACOMET 1603 +dexflex2 MACH_DEXFLEX2 DEXFLEX2 1604 +ow MACH_OW OW 1605 +armebs3 MACH_ARMEBS3 ARMEBS3 1606 +u3 MACH_U3 U3 1607 +smdk2450 MACH_SMDK2450 SMDK2450 1608 +rsi_ews MACH_RSI_EWS RSI_EWS 1609 +tnb MACH_TNB TNB 1610 +toepath MACH_TOEPATH TOEPATH 1611 +kb9263 MACH_KB9263 KB9263 1612 +mt7108 MACH_MT7108 MT7108 1613 +smtr2440 MACH_SMTR2440 SMTR2440 1614 +manao MACH_MANAO MANAO 1615 diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h index 791d0238c68..c85860bad58 100644 --- a/arch/arm/vfp/vfp.h +++ b/arch/arm/vfp/vfp.h @@ -265,7 +265,11 @@ struct vfp_double { * which returns (double)0.0. This is useful for the compare with * zero instructions. */ +#ifdef CONFIG_VFPv3 +#define VFP_REG_ZERO 32 +#else #define VFP_REG_ZERO 16 +#endif extern u64 vfp_get_double(unsigned int reg); extern void vfp_put_double(u64 val, unsigned int reg); diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S index 0ac022f800a..353f9e5c791 100644 --- a/arch/arm/vfp/vfphw.S +++ b/arch/arm/vfp/vfphw.S @@ -99,12 +99,12 @@ vfp_support_entry: DBGSTR1 "save old state %p", r4 cmp r4, #0 beq no_old_VFP_process + VFPFSTMIA r4, r5 @ save the working registers VFPFMRX r5, FPSCR @ current status - VFPFMRX r6, FPINST @ FPINST (always there, rev0 onwards) - tst r1, #FPEXC_FPV2 @ is there an FPINST2 to read? - VFPFMRX r8, FPINST2, NE @ FPINST2 if needed - avoids reading - @ nonexistant reg on rev0 - VFPFSTMIA r4 @ save the working registers + tst r1, #FPEXC_EX @ is there additional state to save? + VFPFMRX r6, FPINST, NE @ FPINST (only if FPEXC.EX is set) + tstne r1, #FPEXC_FP2V @ is there an FPINST2 to read? + VFPFMRX r8, FPINST2, NE @ FPINST2 if needed (and present) stmia r4, {r1, r5, r6, r8} @ save FPEXC, FPSCR, FPINST, FPINST2 @ and point r4 at the word at the @ start of the register dump @@ -114,13 +114,13 @@ no_old_VFP_process: DBGSTR1 "load state %p", r10 str r10, [r3, r11, lsl #2] @ update the last_VFP_context pointer @ Load the saved state back into the VFP - VFPFLDMIA r10 @ reload the working registers while + VFPFLDMIA r10, r5 @ reload the working registers while @ FPEXC is in a safe state ldmia r10, {r1, r5, r6, r8} @ load FPEXC, FPSCR, FPINST, FPINST2 - tst r1, #FPEXC_FPV2 @ is there an FPINST2 to write? - VFPFMXR FPINST2, r8, NE @ FPINST2 if needed - avoids writing - @ nonexistant reg on rev0 - VFPFMXR FPINST, r6 + tst r1, #FPEXC_EX @ is there additional state to restore? + VFPFMXR FPINST, r6, NE @ restore FPINST (only if FPEXC.EX is set) + tstne r1, #FPEXC_FP2V @ is there an FPINST2 to write? + VFPFMXR FPINST2, r8, NE @ FPINST2 if needed (and present) VFPFMXR FPSCR, r5 @ restore status check_for_exception: @@ -136,10 +136,14 @@ check_for_exception: look_for_VFP_exceptions: - tst r1, #FPEXC_EX + @ Check for synchronous or asynchronous exception + tst r1, #FPEXC_EX | FPEXC_DEX bne process_exception + @ On some implementations of the VFP subarch 1, setting FPSCR.IXE + @ causes all the CDP instructions to be bounced synchronously without + @ setting the FPEXC.EX bit VFPFMRX r5, FPSCR - tst r5, #FPSCR_IXE @ IXE doesn't set FPEXC_EX ! + tst r5, #FPSCR_IXE bne process_exception @ Fall into hand on to next handler - appropriate coproc instr @@ -150,10 +154,6 @@ look_for_VFP_exceptions: process_exception: DBGSTR "bounce" - sub r2, r2, #4 - str r2, [sp, #S_PC] @ retry the instruction on exit from - @ the imprecise exception handling in - @ the support code mov r2, sp @ nothing stacked - regdump is at TOS mov lr, r9 @ setup for a return to the user code. @@ -161,7 +161,7 @@ process_exception: @ r0 holds the trigger instruction @ r1 holds the FPEXC value @ r2 pointer to register dump - b VFP9_bounce @ we have handled this - the support + b VFP_bounce @ we have handled this - the support @ code will raise an exception if @ required. If not, the user code will @ retry the faulted instruction @@ -174,12 +174,12 @@ vfp_save_state: @ r0 - save location @ r1 - FPEXC DBGSTR1 "save VFP state %p", r0 + VFPFSTMIA r0, r2 @ save the working registers VFPFMRX r2, FPSCR @ current status - VFPFMRX r3, FPINST @ FPINST (always there, rev0 onwards) - tst r1, #FPEXC_FPV2 @ is there an FPINST2 to read? - VFPFMRX r12, FPINST2, NE @ FPINST2 if needed - avoids reading - @ nonexistant reg on rev0 - VFPFSTMIA r0 @ save the working registers + tst r1, #FPEXC_EX @ is there additional state to save? + VFPFMRX r3, FPINST, NE @ FPINST (only if FPEXC.EX is set) + tstne r1, #FPEXC_FP2V @ is there an FPINST2 to read? + VFPFMRX r12, FPINST2, NE @ FPINST2 if needed (and present) stmia r0, {r1, r2, r3, r12} @ save FPEXC, FPSCR, FPINST, FPINST2 mov pc, lr #endif @@ -217,8 +217,15 @@ vfp_get_double: fmrrd r0, r1, d\dr mov pc, lr .endr +#ifdef CONFIG_VFPv3 + @ d16 - d31 registers + .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + mrrc p11, 3, r0, r1, c\dr @ fmrrd r0, r1, d\dr + mov pc, lr + .endr +#endif - @ virtual register 16 for compare with zero + @ virtual register 16 (or 32 if VFPv3) for compare with zero mov r0, #0 mov r1, #0 mov pc, lr @@ -231,3 +238,10 @@ vfp_put_double: fmdrr d\dr, r0, r1 mov pc, lr .endr +#ifdef CONFIG_VFPv3 + @ d16 - d31 registers + .irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 + mcrr p11, 3, r1, r2, c\dr @ fmdrr r1, r2, d\dr + mov pc, lr + .endr +#endif diff --git a/arch/arm/vfp/vfpinstr.h b/arch/arm/vfp/vfpinstr.h index 7f343a4beca..15b95b5ab97 100644 --- a/arch/arm/vfp/vfpinstr.h +++ b/arch/arm/vfp/vfpinstr.h @@ -52,11 +52,11 @@ #define FEXT_TO_IDX(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7) #define vfp_get_sd(inst) ((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22) -#define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12) +#define vfp_get_dd(inst) ((inst & 0x0000f000) >> 12 | (inst & (1 << 22)) >> 18) #define vfp_get_sm(inst) ((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5) -#define vfp_get_dm(inst) ((inst & 0x0000000f)) +#define vfp_get_dm(inst) ((inst & 0x0000000f) | (inst & (1 << 5)) >> 1) #define vfp_get_sn(inst) ((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7) -#define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16) +#define vfp_get_dn(inst) ((inst & 0x000f0000) >> 16 | (inst & (1 << 7)) >> 3) #define vfp_single(inst) (((inst) & 0x0000f00) == 0xa00) diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index b4e210df92f..32455c633f1 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -125,13 +125,13 @@ void vfp_raise_sigfpe(unsigned int sicode, struct pt_regs *regs) send_sig_info(SIGFPE, &info, current); } -static void vfp_panic(char *reason) +static void vfp_panic(char *reason, u32 inst) { int i; printk(KERN_ERR "VFP: Error: %s\n", reason); printk(KERN_ERR "VFP: EXC 0x%08x SCR 0x%08x INST 0x%08x\n", - fmrx(FPEXC), fmrx(FPSCR), fmrx(FPINST)); + fmrx(FPEXC), fmrx(FPSCR), inst); for (i = 0; i < 32; i += 2) printk(KERN_ERR "VFP: s%2u: 0x%08x s%2u: 0x%08x\n", i, vfp_get_float(i), i+1, vfp_get_float(i+1)); @@ -147,19 +147,16 @@ static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_ pr_debug("VFP: raising exceptions %08x\n", exceptions); if (exceptions == VFP_EXCEPTION_ERROR) { - vfp_panic("unhandled bounce"); + vfp_panic("unhandled bounce", inst); vfp_raise_sigfpe(0, regs); return; } /* - * If any of the status flags are set, update the FPSCR. + * Update the FPSCR with the additional exception flags. * Comparison instructions always return at least one of * these flags set. */ - if (exceptions & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V)) - fpscr &= ~(FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V); - fpscr |= exceptions; fmxr(FPSCR, fpscr); @@ -220,35 +217,64 @@ static u32 vfp_emulate_instruction(u32 inst, u32 fpscr, struct pt_regs *regs) /* * Package up a bounce condition. */ -void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs) +void VFP_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs) { - u32 fpscr, orig_fpscr, exceptions, inst; + u32 fpscr, orig_fpscr, fpsid, exceptions; pr_debug("VFP: bounce: trigger %08x fpexc %08x\n", trigger, fpexc); /* - * Enable access to the VFP so we can handle the bounce. + * At this point, FPEXC can have the following configuration: + * + * EX DEX IXE + * 0 1 x - synchronous exception + * 1 x 0 - asynchronous exception + * 1 x 1 - sychronous on VFP subarch 1 and asynchronous on later + * 0 0 1 - synchronous on VFP9 (non-standard subarch 1 + * implementation), undefined otherwise + * + * Clear various bits and enable access to the VFP so we can + * handle the bounce. */ - fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_FPV2|FPEXC_INV|FPEXC_UFC|FPEXC_OFC|FPEXC_IOC)); + fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_DEX|FPEXC_FP2V|FPEXC_VV|FPEXC_TRAP_MASK)); + fpsid = fmrx(FPSID); orig_fpscr = fpscr = fmrx(FPSCR); /* - * If we are running with inexact exceptions enabled, we need to - * emulate the trigger instruction. Note that as we're emulating - * the trigger instruction, we need to increment PC. + * Check for the special VFP subarch 1 and FPSCR.IXE bit case */ - if (fpscr & FPSCR_IXE) { - regs->ARM_pc += 4; + if ((fpsid & FPSID_ARCH_MASK) == (1 << FPSID_ARCH_BIT) + && (fpscr & FPSCR_IXE)) { + /* + * Synchronous exception, emulate the trigger instruction + */ goto emulate; } - barrier(); + if (fpexc & FPEXC_EX) { + /* + * Asynchronous exception. The instruction is read from FPINST + * and the interrupted instruction has to be restarted. + */ + trigger = fmrx(FPINST); + regs->ARM_pc -= 4; + } else if (!(fpexc & FPEXC_DEX)) { + /* + * Illegal combination of bits. It can be caused by an + * unallocated VFP instruction but with FPSCR.IXE set and not + * on VFP subarch 1. + */ + vfp_raise_exceptions(VFP_EXCEPTION_ERROR, trigger, fpscr, regs); + return; + } /* - * Modify fpscr to indicate the number of iterations remaining + * Modify fpscr to indicate the number of iterations remaining. + * If FPEXC.EX is 0, FPEXC.DEX is 1 and the FPEXC.VV bit indicates + * whether FPEXC.VECITR or FPSCR.LEN is used. */ - if (fpexc & FPEXC_EX) { + if (fpexc & (FPEXC_EX | FPEXC_VV)) { u32 len; len = fpexc + (1 << FPEXC_LENGTH_BIT); @@ -262,15 +288,15 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs) * FPEXC bounce reason, but this appears to be unreliable. * Emulate the bounced instruction instead. */ - inst = fmrx(FPINST); - exceptions = vfp_emulate_instruction(inst, fpscr, regs); + exceptions = vfp_emulate_instruction(trigger, fpscr, regs); if (exceptions) - vfp_raise_exceptions(exceptions, inst, orig_fpscr, regs); + vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs); /* - * If there isn't a second FP instruction, exit now. + * If there isn't a second FP instruction, exit now. Note that + * the FPEXC.FP2V bit is valid only if FPEXC.EX is 1. */ - if (!(fpexc & FPEXC_FPV2)) + if (fpexc ^ (FPEXC_EX | FPEXC_FP2V)) return; /* @@ -279,10 +305,9 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs) */ barrier(); trigger = fmrx(FPINST2); - orig_fpscr = fpscr = fmrx(FPSCR); emulate: - exceptions = vfp_emulate_instruction(trigger, fpscr, regs); + exceptions = vfp_emulate_instruction(trigger, orig_fpscr, regs); if (exceptions) vfp_raise_exceptions(exceptions, trigger, orig_fpscr, regs); } @@ -306,16 +331,9 @@ static int __init vfp_init(void) { unsigned int vfpsid; unsigned int cpu_arch = cpu_architecture(); - u32 access = 0; - if (cpu_arch >= CPU_ARCH_ARMv6) { - access = get_copro_access(); - - /* - * Enable full access to VFP (cp10 and cp11) - */ - set_copro_access(access | CPACC_FULL(10) | CPACC_FULL(11)); - } + if (cpu_arch >= CPU_ARCH_ARMv6) + vfp_enable(NULL); /* * First check that there is a VFP that we can use. @@ -329,15 +347,9 @@ static int __init vfp_init(void) vfp_vector = vfp_null_entry; printk(KERN_INFO "VFP support v0.3: "); - if (VFP_arch) { + if (VFP_arch) printk("not present\n"); - - /* - * Restore the copro access register. - */ - if (cpu_arch >= CPU_ARCH_ARMv6) - set_copro_access(access); - } else if (vfpsid & FPSID_NODOUBLE) { + else if (vfpsid & FPSID_NODOUBLE) { printk("no double precision support\n"); } else { smp_call_function(vfp_enable, NULL, 1, 1); diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 25232ba0811..fc7ca86ac8b 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -85,11 +85,26 @@ config BF522 help BF522 Processor Support. +config BF523 + bool "BF523" + help + BF523 Processor Support. + +config BF524 + bool "BF524" + help + BF524 Processor Support. + config BF525 bool "BF525" help BF525 Processor Support. +config BF526 + bool "BF526" + help + BF526 Processor Support. + config BF527 bool "BF527" help @@ -198,7 +213,7 @@ endchoice config BF52x bool - depends on (BF522 || BF525 || BF527) + depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527) default y config BF53x @@ -253,11 +268,6 @@ config MEM_MT48LC32M16A2TG_75 depends on (BFIN527_EZKIT) default y -config BFIN_SHARED_FLASH_ENET - bool - depends on (BFIN533_STAMP) - default y - source "arch/blackfin/mach-bf527/Kconfig" source "arch/blackfin/mach-bf533/Kconfig" source "arch/blackfin/mach-bf561/Kconfig" @@ -317,7 +327,7 @@ config VCO_MULT range 1 64 default "22" if BFIN533_EZKIT default "45" if BFIN533_STAMP - default "20" if (BFIN537_STAMP || BFIN527_EZKIT) + default "20" if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT) default "22" if BFIN533_BLUETECHNIX_CM default "20" if BFIN537_BLUETECHNIX_CM default "20" if BFIN561_BLUETECHNIX_CM @@ -354,7 +364,7 @@ config SCLK_DIV range 1 15 default 5 if BFIN533_EZKIT default 5 if BFIN533_STAMP - default 4 if (BFIN537_STAMP || BFIN527_EZKIT) + default 4 if (BFIN537_STAMP || BFIN527_EZKIT || BFIN548_EZKIT) default 5 if BFIN533_BLUETECHNIX_CM default 4 if BFIN537_BLUETECHNIX_CM default 4 if BFIN561_BLUETECHNIX_CM @@ -371,7 +381,10 @@ config SCLK_DIV config MAX_VCO_HZ int default 600000000 if BF522 + default 400000000 if BF523 + default 400000000 if BF524 default 600000000 if BF525 + default 400000000 if BF526 default 600000000 if BF527 default 400000000 if BF531 default 400000000 if BF532 @@ -383,6 +396,8 @@ config MAX_VCO_HZ default 533333333 if BF539 default 600000000 if BF542 default 533333333 if BF544 + default 600000000 if BF547 + default 600000000 if BF548 default 533333333 if BF549 default 600000000 if BF561 @@ -409,6 +424,7 @@ config MEM_SIZE default 32 if BFIN533_EZKIT default 64 if BFIN527_EZKIT default 64 if BFIN537_STAMP + default 64 if BFIN548_EZKIT default 64 if BFIN561_EZKIT default 128 if BFIN533_STAMP default 64 if PNAV10 @@ -416,6 +432,7 @@ config MEM_SIZE config MEM_ADD_WIDTH int "SDRAM Memory Address Width" + depends on (!BF54x) default 9 if BFIN533_EZKIT default 9 if BFIN561_EZKIT default 9 if H8606_HVSISTEMAS @@ -424,6 +441,19 @@ config MEM_ADD_WIDTH default 11 if BFIN533_STAMP default 10 if PNAV10 + +choice + prompt "DDR SDRAM Chip Type" + depends on BFIN548_EZKIT + default MEM_MT46V32M16_5B + +config MEM_MT46V32M16_6T + bool "MT46V32M16_6T" + +config MEM_MT46V32M16_5B + bool "MT46V32M16_5B" +endchoice + config ENET_FLASH_PIN int "PF port/pin used for flash and ethernet sharing" depends on (BFIN533_STAMP) @@ -448,40 +478,6 @@ config BOOT_LOAD memory region is used to capture NULL pointer references as well as some core kernel functions. -comment "LED Status Indicators" - depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) - -config BFIN_ALIVE_LED - bool "Enable Board Alive" - depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) - default n - help - Blink the LEDs you select when the kernel is running. Helps detect - a hung kernel. - -config BFIN_ALIVE_LED_NUM - int "LED" - depends on BFIN_ALIVE_LED - range 1 3 if BFIN533_STAMP - default "3" if BFIN533_STAMP - help - Select the LED (marked on the board) for you to blink. - -config BFIN_IDLE_LED - bool "Enable System Load/Idle LED" - depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) - default n - help - Blinks the LED you select when to determine kernel load. - -config BFIN_IDLE_LED_NUM - int "LED" - depends on BFIN_IDLE_LED - range 1 3 if BFIN533_STAMP - default "2" if BFIN533_STAMP - help - Select the LED (marked on the board) for you to blink. - choice prompt "Blackfin Exception Scratch Register" default BFIN_SCRATCH_REG_RETN @@ -528,41 +524,6 @@ config BFIN_SCRATCH_REG_CYCLES endchoice -# -# Sorry - but you need to put the hex address here - -# - -# Flag Data register -config BFIN_ALIVE_LED_PORT - hex - default 0xFFC00700 if (BFIN533_STAMP) - -# Peripheral Flag Direction Register -config BFIN_ALIVE_LED_DPORT - hex - default 0xFFC00730 if (BFIN533_STAMP) - -config BFIN_ALIVE_LED_PIN - hex - default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1) - default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2) - default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3) - -config BFIN_IDLE_LED_PORT - hex - default 0xFFC00700 if (BFIN533_STAMP) - -# Peripheral Flag Direction Register -config BFIN_IDLE_LED_DPORT - hex - default 0xFFC00730 if (BFIN533_STAMP) - -config BFIN_IDLE_LED_PIN - hex - default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1) - default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2) - default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3) - endmenu @@ -799,6 +760,15 @@ config L1_MAX_PIECE Set the max memory pieces for the L1 SRAM allocation algorithm. Min value is 16. Max value is 1024. + +config MPU + bool "Enable the memory protection unit (EXPERIMENTAL)" + default n + help + Use the processor's MPU to protect applications from accessing + memory they do not own. This comes at a performance penalty + and is recommended only for debugging. + comment "Asynchonous Memory Configuration" menu "EBIU_AMGCTL Global Control" @@ -808,7 +778,6 @@ config C_AMCKEN config C_CDPRIO bool "DMA has priority over core for ext. accesses" - depends on !BF54x default n config C_B0PEN @@ -949,8 +918,10 @@ endchoice config PM_WAKEUP_SIC_IWR hex "Wakeup Events (SIC_IWR)" depends on PM_WAKEUP_GPIO_BY_SIC_IWR - default 0x80000000 if (BF537 || BF536 || BF534) - default 0x100000 if (BF533 || BF532 || BF531) + default 0x8 if (BF537 || BF536 || BF534) + default 0x80 if (BF533 || BF532 || BF531) + default 0x80 if (BF54x) + default 0x80 if (BF52x) config PM_WAKEUP_GPIO_NUMBER int "Wakeup GPIO number" diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index c47e000f832..0edc402fef5 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -21,7 +21,10 @@ KBUILD_DEFCONFIG := BF537-STAMP_defconfig # setup the machine name and the machine dependent settings machine-$(CONFIG_BF522) := bf527 +machine-$(CONFIG_BF523) := bf527 +machine-$(CONFIG_BF524) := bf527 machine-$(CONFIG_BF525) := bf527 +machine-$(CONFIG_BF526) := bf527 machine-$(CONFIG_BF527) := bf527 machine-$(CONFIG_BF531) := bf533 machine-$(CONFIG_BF532) := bf533 @@ -39,7 +42,10 @@ MACHINE := $(machine-y) export MACHINE cpu-$(CONFIG_BF522) := bf522 +cpu-$(CONFIG_BF523) := bf523 +cpu-$(CONFIG_BF524) := bf524 cpu-$(CONFIG_BF525) := bf525 +cpu-$(CONFIG_BF526) := bf526 cpu-$(CONFIG_BF527) := bf527 cpu-$(CONFIG_BF531) := bf531 cpu-$(CONFIG_BF532) := bf532 @@ -76,6 +82,12 @@ core-y += arch/$(ARCH)/mach-$(MACHINE)/ core-y += arch/$(ARCH)/mach-$(MACHINE)/boards/ endif +ifeq ($(CONFIG_MPU),y) +core-y += arch/$(ARCH)/kernel/cplb-mpu/ +else +core-y += arch/$(ARCH)/kernel/cplb-nompu/ +endif + libs-y += arch/$(ARCH)/lib/ drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/ diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig index fa6eb4e00fa..d59ee1530bd 100644 --- a/arch/blackfin/configs/BF527-EZKIT_defconfig +++ b/arch/blackfin/configs/BF527-EZKIT_defconfig @@ -1,6 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.14 +# Thu Nov 29 17:32:47 2007 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -153,8 +154,8 @@ CONFIG_BFIN527_EZKIT=y CONFIG_BF527_SPORT0_PORTG=y CONFIG_BF527_SPORT0_TSCLK_PG10=y # CONFIG_BF527_SPORT0_TSCLK_PG14 is not set -# CONFIG_BF527_UART1_PORTF is not set -CONFIG_BF527_UART1_PORTG=y +CONFIG_BF527_UART1_PORTF=y +# CONFIG_BF527_UART1_PORTG is not set # CONFIG_BF527_NAND_D_PORTF is not set CONFIG_BF527_NAND_D_PORTH=y @@ -232,7 +233,7 @@ CONFIG_CLKIN_HZ=25000000 # CONFIG_BFIN_KERNEL_CLOCK is not set CONFIG_MAX_VCO_HZ=600000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -626,8 +627,8 @@ CONFIG_BFIN_MAC_RMII=y # CONFIG_SMSC911X is not set # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -1183,7 +1184,7 @@ CONFIG_NLS_DEFAULT="iso8859-1" # # CONFIG_PRINTK_TIME is not set CONFIG_ENABLE_MUST_CHECK=y -CONFIG_MAGIC_SYSRQ=y +# CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set @@ -1208,7 +1209,7 @@ CONFIG_ACCESS_CHECK=y # CONFIG_KEYS is not set CONFIG_SECURITY=y # CONFIG_SECURITY_NETWORK is not set -CONFIG_SECURITY_CAPABILITIES=y +CONFIG_SECURITY_CAPABILITIES=m # # Cryptographic options @@ -1219,7 +1220,7 @@ CONFIG_SECURITY_CAPABILITIES=y # Library routines # CONFIG_BITREVERSE=y -# CONFIG_CRC_CCITT is not set +CONFIG_CRC_CCITT=m # CONFIG_CRC16 is not set # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig index 4fdb49362ba..811711f59a2 100644 --- a/arch/blackfin/configs/BF533-EZKIT_defconfig +++ b/arch/blackfin/configs/BF533-EZKIT_defconfig @@ -1,6 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set # CONFIG_BF527 is not set # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -194,7 +197,7 @@ CONFIG_CLKIN_HZ=27000000 # CONFIG_BFIN_KERNEL_CLOCK is not set CONFIG_MAX_VCO_HZ=750000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -267,6 +270,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -321,7 +325,7 @@ CONFIG_PM=y CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y # CONFIG_PM_WAKEUP_BY_GPIO is not set # CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x100000 +CONFIG_PM_WAKEUP_SIC_IWR=0x80 # # CPU Frequency scaling @@ -510,7 +514,6 @@ CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_MW320D=m CONFIG_MTD_RAM=y CONFIG_MTD_ROM=m # CONFIG_MTD_ABSENT is not set @@ -520,9 +523,6 @@ CONFIG_MTD_ROM=m # CONFIG_MTD_COMPLEX_MAPPINGS=y # CONFIG_MTD_PHYSMAP is not set -CONFIG_MTD_BF5xx=m -CONFIG_BFIN_FLASH_SIZE=0x400000 -CONFIG_EBIU_FLASH_BASE=0x20000000 # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -610,8 +610,8 @@ CONFIG_SMC91X=y # CONFIG_SMSC911X is not set # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -680,7 +680,6 @@ CONFIG_INPUT_EVDEV=m CONFIG_BFIN_SPORT=y # CONFIG_BFIN_TIMER_LATENCY is not set # CONFIG_AD5304 is not set -# CONFIG_BF5xx_FBDMA is not set # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig index b04e8e533e9..9b7123cf27a 100644 --- a/arch/blackfin/configs/BF533-STAMP_defconfig +++ b/arch/blackfin/configs/BF533-STAMP_defconfig @@ -1,6 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set # CONFIG_BF527 is not set # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -140,7 +143,6 @@ CONFIG_BF_REV_0_3=y CONFIG_BF53x=y CONFIG_BFIN_SINGLE_CORE=y CONFIG_MEM_MT48LC64M4A2FB_7E=y -CONFIG_BFIN_SHARED_FLASH_ENET=y # CONFIG_BFIN533_EZKIT is not set CONFIG_BFIN533_STAMP=y # CONFIG_BFIN533_BLUETECHNIX_CM is not set @@ -195,7 +197,7 @@ CONFIG_CLKIN_HZ=11059200 # CONFIG_BFIN_KERNEL_CLOCK is not set CONFIG_MAX_VCO_HZ=750000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -215,18 +217,10 @@ CONFIG_MEM_ADD_WIDTH=11 CONFIG_ENET_FLASH_PIN=0 CONFIG_BOOT_LOAD=0x1000 -# -# LED Status Indicators -# -# CONFIG_BFIN_ALIVE_LED is not set -# CONFIG_BFIN_IDLE_LED is not set + CONFIG_BFIN_SCRATCH_REG_RETN=y # CONFIG_BFIN_SCRATCH_REG_RETE is not set # CONFIG_BFIN_SCRATCH_REG_CYCLES is not set -CONFIG_BFIN_ALIVE_LED_PORT=0xFFC00700 -CONFIG_BFIN_ALIVE_LED_DPORT=0xFFC00730 -CONFIG_BFIN_IDLE_LED_PORT=0xFFC00700 -CONFIG_BFIN_IDLE_LED_DPORT=0xFFC00730 # # Blackfin Kernel Optimizations @@ -279,6 +273,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -333,7 +328,7 @@ CONFIG_PM=y CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y # CONFIG_PM_WAKEUP_BY_GPIO is not set # CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x100000 +CONFIG_PM_WAKEUP_SIC_IWR=0x80 # # CPU Frequency scaling @@ -522,7 +517,6 @@ CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_MW320D=m CONFIG_MTD_RAM=y CONFIG_MTD_ROM=m # CONFIG_MTD_ABSENT is not set @@ -532,17 +526,6 @@ CONFIG_MTD_ROM=m # CONFIG_MTD_COMPLEX_MAPPINGS=y # CONFIG_MTD_PHYSMAP is not set -CONFIG_MTD_BF5xx=m -CONFIG_BFIN_FLASH_SIZE=0x400000 -CONFIG_EBIU_FLASH_BASE=0x20000000 - -# -# FLASH_EBIU_AMBCTL Control -# -CONFIG_BFIN_FLASH_BANK_0=0x7BB0 -CONFIG_BFIN_FLASH_BANK_1=0x7BB0 -CONFIG_BFIN_FLASH_BANK_2=0x7BB0 -CONFIG_BFIN_FLASH_BANK_3=0x7BB0 # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -630,8 +613,8 @@ CONFIG_SMC91X=y # CONFIG_SMSC911X is not set # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -687,7 +670,6 @@ CONFIG_INPUT_MISC=y # CONFIG_INPUT_POWERMATE is not set # CONFIG_INPUT_YEALINK is not set # CONFIG_INPUT_UINPUT is not set -# CONFIG_BF53X_PFBUTTONS is not set CONFIG_TWI_KEYPAD=m CONFIG_BFIN_TWIKEYPAD_IRQ_PFX=39 @@ -711,8 +693,6 @@ CONFIG_BFIN_SPORT=y CONFIG_TWI_LCD=m CONFIG_TWI_LCD_SLAVE_ADDR=34 # CONFIG_AD5304 is not set -# CONFIG_BF5xx_TEA5764 is not set -# CONFIG_BF5xx_FBDMA is not set # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set @@ -778,7 +758,6 @@ CONFIG_I2C_ALGOBIT=m # # I2C Hardware Bus support # -# CONFIG_I2C_BLACKFIN_GPIO is not set # CONFIG_I2C_GPIO is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig index f812b66318b..b37ccc681e7 100644 --- a/arch/blackfin/configs/BF537-STAMP_defconfig +++ b/arch/blackfin/configs/BF537-STAMP_defconfig @@ -1,6 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set # CONFIG_BF527 is not set # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -170,6 +173,7 @@ CONFIG_IRQ_WATCH=13 CONFIG_BFIN537_STAMP=y # CONFIG_BFIN537_BLUETECHNIX_CM is not set # CONFIG_PNAV10 is not set +# CONFIG_CAMSIG_MINOTAUR is not set # CONFIG_GENERIC_BF537_BOARD is not set # @@ -201,7 +205,7 @@ CONFIG_CLKIN_HZ=25000000 # CONFIG_BFIN_KERNEL_CLOCK is not set CONFIG_MAX_VCO_HZ=600000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -274,6 +278,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -328,7 +333,7 @@ CONFIG_PM=y CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y # CONFIG_PM_WAKEUP_BY_GPIO is not set # CONFIG_PM_WAKEUP_GPIO_API is not set -CONFIG_PM_WAKEUP_SIC_IWR=0x80000000 +CONFIG_PM_WAKEUP_SIC_IWR=0x8 # # CPU Frequency scaling @@ -483,7 +488,7 @@ CONFIG_MTD=y # CONFIG_MTD_CONCAT is not set CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set -# CONFIG_MTD_CMDLINE_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y # # User Modules And Translation Layers @@ -500,8 +505,8 @@ CONFIG_MTD_BLOCK=y # # RAM/ROM/Flash chip drivers # -# CONFIG_MTD_CFI is not set -CONFIG_MTD_JEDECPROBE=m +CONFIG_MTD_CFI=m +# CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_GEN_PROBE=m # CONFIG_MTD_CFI_ADV_OPTIONS is not set CONFIG_MTD_MAP_BANK_WIDTH_1=y @@ -515,9 +520,9 @@ CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set # CONFIG_MTD_CFI_INTELEXT is not set -# CONFIG_MTD_CFI_AMDSTD is not set +CONFIG_MTD_CFI_AMDSTD=m # CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_MW320D=m +CONFIG_MTD_CFI_UTIL=m CONFIG_MTD_RAM=y CONFIG_MTD_ROM=m # CONFIG_MTD_ABSENT is not set @@ -525,11 +530,11 @@ CONFIG_MTD_ROM=m # # Mapping drivers for chip access # -CONFIG_MTD_COMPLEX_MAPPINGS=y -# CONFIG_MTD_PHYSMAP is not set -CONFIG_MTD_BF5xx=m -CONFIG_BFIN_FLASH_SIZE=0x400000 -CONFIG_EBIU_FLASH_BASE=0x20000000 +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=m +CONFIG_MTD_PHYSMAP_START=0x20000000 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=2 # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -647,8 +652,8 @@ CONFIG_BFIN_RX_DESC_NUM=20 # CONFIG_SMSC911X is not set # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -704,7 +709,6 @@ CONFIG_INPUT_MISC=y # CONFIG_INPUT_POWERMATE is not set # CONFIG_INPUT_YEALINK is not set # CONFIG_INPUT_UINPUT is not set -# CONFIG_BF53X_PFBUTTONS is not set CONFIG_TWI_KEYPAD=m CONFIG_BFIN_TWIKEYPAD_IRQ_PFX=72 @@ -728,8 +732,6 @@ CONFIG_BFIN_SPORT=y CONFIG_TWI_LCD=m CONFIG_TWI_LCD_SLAVE_ADDR=34 # CONFIG_AD5304 is not set -# CONFIG_BF5xx_TEA5764 is not set -# CONFIG_BF5xx_FBDMA is not set # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set @@ -802,7 +804,6 @@ CONFIG_I2C_CHARDEV=m # # I2C Hardware Bus support # -# CONFIG_I2C_BLACKFIN_GPIO is not set CONFIG_I2C_BLACKFIN_TWI=m CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50 # CONFIG_I2C_GPIO is not set @@ -957,6 +958,7 @@ CONFIG_LQ035_SLAVE_ADDR=0x58 # CONFIG_FB_BFIN_LANDSCAPE is not set # CONFIG_FB_BFIN_BGR is not set # CONFIG_FB_BFIN_T350MCQB is not set +# CONFIG_FB_HITACHI_TX09 is not set # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set # CONFIG_LOGO is not set @@ -1008,12 +1010,22 @@ CONFIG_SND_BFIN_AD73311_SE=4 # # System on Chip audio support # -# CONFIG_SND_SOC is not set +CONFIG_SND_SOC_AC97_BUS=y +CONFIG_SND_SOC=m +CONFIG_SND_BF5XX_SOC=m +CONFIG_SND_BF5XX_SOC_AC97=m +# CONFIG_SND_BF5XX_SOC_WM8750 is not set +# CONFIG_SND_BF5XX_SOC_WM8731 is not set +CONFIG_SND_BF5XX_SOC_BF5xx=m +CONFIG_SND_BF5XX_SPORT_NUM=0 +# CONFIG_SND_BF5XX_HAVE_COLD_RESET is not set +CONFIG_SND_SOC_AD1980=m # # Open Sound System # # CONFIG_SOUND_PRIME is not set +CONFIG_AC97_BUS=m # # HID Devices diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig index 48367cc9fe3..fd702161ef5 100644 --- a/arch/blackfin/configs/BF548-EZKIT_defconfig +++ b/arch/blackfin/configs/BF548-EZKIT_defconfig @@ -1,6 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set # CONFIG_BF527 is not set # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -126,8 +129,8 @@ CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_BF542 is not set # CONFIG_BF544 is not set # CONFIG_BF547 is not set -# CONFIG_BF548 is not set -CONFIG_BF549=y +CONFIG_BF548=y +# CONFIG_BF549 is not set # CONFIG_BF561 is not set CONFIG_BF_REV_0_0=y # CONFIG_BF_REV_0_1 is not set @@ -265,9 +268,9 @@ CONFIG_PINT3_ASSIGN=0x02020303 # CONFIG_CLKIN_HZ=25000000 # CONFIG_BFIN_KERNEL_CLOCK is not set -CONFIG_MAX_VCO_HZ=533000000 +CONFIG_MAX_VCO_HZ=600000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -283,7 +286,8 @@ CONFIG_HZ=250 # Memory Setup # CONFIG_MEM_SIZE=64 -CONFIG_MEM_ADD_WIDTH=10 +# CONFIG_MEM_MT46V32M16_6T is not set +CONFIG_MEM_MT46V32M16_5B=y CONFIG_BOOT_LOAD=0x1000 CONFIG_BFIN_SCRATCH_REG_RETN=y # CONFIG_BFIN_SCRATCH_REG_RETE is not set @@ -340,6 +344,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -349,6 +354,7 @@ CONFIG_L1_MAX_PIECE=16 # EBIU_AMGCTL Global Control # CONFIG_C_AMCKEN=y +# CONFIG_C_CDPRIO is not set # CONFIG_C_AMBEN is not set # CONFIG_C_AMBEN_B0 is not set # CONFIG_C_AMBEN_B0_B1 is not set @@ -362,9 +368,9 @@ CONFIG_BANK_0=0x7BB0 CONFIG_BANK_1=0x5554 CONFIG_BANK_2=0x7BB0 CONFIG_BANK_3=0x99B3 -CONFIG_EBUI_MBSCTLVAL=0x0 -CONFIG_EBUI_MODEVAL=0x1 -CONFIG_EBUI_FCTLVAL=0x6 +CONFIG_EBIU_MBSCTLVAL=0x0 +CONFIG_EBIU_MODEVAL=0x1 +CONFIG_EBIU_FCTLVAL=0x6 # # Bus options (PCI, PCMCIA, EISA, MCA, ISA) @@ -537,7 +543,6 @@ CONFIG_MTD_CFI_I2=y CONFIG_MTD_CFI_INTELEXT=y # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_CFI_STAA is not set -# CONFIG_MTD_MW320D is not set CONFIG_MTD_CFI_UTIL=y CONFIG_MTD_RAM=y # CONFIG_MTD_ROM is not set @@ -549,9 +554,8 @@ CONFIG_MTD_RAM=y CONFIG_MTD_COMPLEX_MAPPINGS=y CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_START=0x20000000 -CONFIG_MTD_PHYSMAP_LEN=0x400000 +CONFIG_MTD_PHYSMAP_LEN=0 CONFIG_MTD_PHYSMAP_BANKWIDTH=2 -# CONFIG_MTD_BF5xx is not set # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -690,8 +694,8 @@ CONFIG_MII=y CONFIG_SMSC911X=y # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -719,7 +723,7 @@ CONFIG_NETDEV_10000=y # # Input device support # -CONFIG_INPUT=m +CONFIG_INPUT=y # CONFIG_INPUT_FF_MEMLESS is not set # CONFIG_INPUT_POLLDEV is not set @@ -745,7 +749,8 @@ CONFIG_INPUT_KEYBOARD=y # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set # CONFIG_KEYBOARD_GPIO is not set -CONFIG_KEYBOARD_BFIN=m +CONFIG_KEYBOARD_BFIN=y +# CONFIG_KEYBOARD_OPENCORES is not set # CONFIG_INPUT_MOUSE is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TABLET is not set @@ -768,7 +773,6 @@ CONFIG_INPUT_MISC=y # CONFIG_INPUT_POWERMATE is not set # CONFIG_INPUT_YEALINK is not set # CONFIG_INPUT_UINPUT is not set -# CONFIG_BF53X_PFBUTTONS is not set # CONFIG_TWI_KEYPAD is not set # @@ -786,13 +790,16 @@ CONFIG_INPUT_MISC=y # CONFIG_BF5xx_PPIFCD is not set # CONFIG_BFIN_SIMPLE_TIMER is not set # CONFIG_BF5xx_PPI is not set +CONFIG_BFIN_OTP=y +# CONFIG_BFIN_OTP_WRITE_ENABLE is not set # CONFIG_BFIN_SPORT is not set # CONFIG_BFIN_TIMER_LATENCY is not set # CONFIG_TWI_LCD is not set # CONFIG_AD5304 is not set -# CONFIG_BF5xx_TEA5764 is not set -# CONFIG_BF5xx_FBDMA is not set -# CONFIG_VT is not set +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set # CONFIG_SERIAL_NONSTANDARD is not set # @@ -858,7 +865,6 @@ CONFIG_I2C_CHARDEV=y # # I2C Hardware Bus support # -# CONFIG_I2C_BLACKFIN_GPIO is not set CONFIG_I2C_BLACKFIN_TWI=y CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=50 # CONFIG_I2C_GPIO is not set @@ -976,12 +982,12 @@ CONFIG_DAB=y # # CONFIG_DISPLAY_SUPPORT is not set # CONFIG_VGASTATE is not set -CONFIG_FB=m +CONFIG_FB=y CONFIG_FIRMWARE_EDID=y # CONFIG_FB_DDC is not set -CONFIG_FB_CFB_FILLRECT=m -CONFIG_FB_CFB_COPYAREA=m -CONFIG_FB_CFB_IMAGEBLIT=m +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y # CONFIG_FB_SYS_FILLRECT is not set # CONFIG_FB_SYS_COPYAREA is not set # CONFIG_FB_SYS_IMAGEBLIT is not set @@ -998,11 +1004,34 @@ CONFIG_FB_DEFERRED_IO=y # # CONFIG_FB_BFIN_7171 is not set # CONFIG_FB_BFIN_7393 is not set -CONFIG_FB_BF54X_LQ043=m +CONFIG_FB_BF54X_LQ043=y # CONFIG_FB_BFIN_T350MCQB is not set # CONFIG_FB_S1D13XXX is not set # CONFIG_FB_VIRTUAL is not set -# CONFIG_LOGO is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +CONFIG_FONTS=y +# CONFIG_FONT_8x8 is not set +# CONFIG_FONT_8x16 is not set +CONFIG_FONT_6x11=y +# CONFIG_FONT_7x14 is not set +# CONFIG_FONT_PEARL_8x8 is not set +# CONFIG_FONT_ACORN_8x8 is not set +# CONFIG_FONT_MINI_4x6 is not set +# CONFIG_FONT_SUN8x16 is not set +# CONFIG_FONT_SUN12x22 is not set +# CONFIG_FONT_10x18 is not set +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_LOGO_LINUX_CLUT224 is not set +# CONFIG_LOGO_BLACKFIN_VGA16 is not set +CONFIG_LOGO_BLACKFIN_CLUT224=y # # Sound @@ -1051,7 +1080,8 @@ CONFIG_SND_BF5XX_SOC_BF548_EZKIT=y # CONFIG_SND_BF5XX_SOC_WM8750 is not set # CONFIG_SND_BF5XX_SOC_WM8731 is not set CONFIG_SND_BF5XX_SPORT_NUM=0 -# CONFIG_SND_BF5XX_HAVE_COLD_RESET is not set +CONFIG_SND_BF5XX_HAVE_COLD_RESET=y +CONFIG_SND_BF5XX_RESET_GPIO_NUM=19 CONFIG_SND_SOC_AD1980=y # @@ -1403,7 +1433,7 @@ CONFIG_NLS_UTF8=m # # CONFIG_PRINTK_TIME is not set CONFIG_ENABLE_MUST_CHECK=y -CONFIG_MAGIC_SYSRQ=y +# CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_FS=y # CONFIG_HEADERS_CHECK is not set @@ -1428,7 +1458,7 @@ CONFIG_ACCESS_CHECK=y # CONFIG_KEYS is not set CONFIG_SECURITY=y # CONFIG_SECURITY_NETWORK is not set -CONFIG_SECURITY_CAPABILITIES=y +CONFIG_SECURITY_CAPABILITIES=m # # Cryptographic options @@ -1439,7 +1469,7 @@ CONFIG_SECURITY_CAPABILITIES=y # Library routines # CONFIG_BITREVERSE=y -# CONFIG_CRC_CCITT is not set +CONFIG_CRC_CCITT=m # CONFIG_CRC16 is not set # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig index e9f100b45eb..8546994939f 100644 --- a/arch/blackfin/configs/BF561-EZKIT_defconfig +++ b/arch/blackfin/configs/BF561-EZKIT_defconfig @@ -1,6 +1,6 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.22.12 +# Linux kernel version: 2.6.22.16 # # CONFIG_MMU is not set # CONFIG_FPU is not set @@ -115,7 +115,10 @@ CONFIG_PREEMPT_VOLUNTARY=y # Processor and Board Settings # # CONFIG_BF522 is not set +# CONFIG_BF523 is not set +# CONFIG_BF524 is not set # CONFIG_BF525 is not set +# CONFIG_BF526 is not set # CONFIG_BF527 is not set # CONFIG_BF531 is not set # CONFIG_BF532 is not set @@ -238,7 +241,7 @@ CONFIG_CLKIN_HZ=30000000 # CONFIG_BFIN_KERNEL_CLOCK is not set CONFIG_MAX_VCO_HZ=600000000 CONFIG_MIN_VCO_HZ=50000000 -CONFIG_MAX_SCLK_HZ=133000000 +CONFIG_MAX_SCLK_HZ=133333333 CONFIG_MIN_SCLK_HZ=27000000 # @@ -311,6 +314,7 @@ CONFIG_BFIN_DCACHE=y # CONFIG_BFIN_WB is not set CONFIG_BFIN_WT=y CONFIG_L1_MAX_PIECE=16 +# CONFIG_MPU is not set # # Asynchonous Memory Configuration @@ -512,7 +516,7 @@ CONFIG_MTD=y # CONFIG_MTD_CONCAT is not set CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set -# CONFIG_MTD_CMDLINE_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y # # User Modules And Translation Layers @@ -529,8 +533,8 @@ CONFIG_MTD_BLOCK=y # # RAM/ROM/Flash chip drivers # -# CONFIG_MTD_CFI is not set -CONFIG_MTD_JEDECPROBE=m +CONFIG_MTD_CFI=m +# CONFIG_MTD_JEDECPROBE is not set CONFIG_MTD_GEN_PROBE=m # CONFIG_MTD_CFI_ADV_OPTIONS is not set CONFIG_MTD_MAP_BANK_WIDTH_1=y @@ -544,9 +548,9 @@ CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set # CONFIG_MTD_CFI_INTELEXT is not set -# CONFIG_MTD_CFI_AMDSTD is not set +CONFIG_MTD_CFI_AMDSTD=m # CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_MW320D=m +CONFIG_MTD_CFI_UTIL=m CONFIG_MTD_RAM=y CONFIG_MTD_ROM=m # CONFIG_MTD_ABSENT is not set @@ -554,12 +558,11 @@ CONFIG_MTD_ROM=m # # Mapping drivers for chip access # -CONFIG_MTD_COMPLEX_MAPPINGS=y -# CONFIG_MTD_PHYSMAP is not set -# CONFIG_MTD_EZKIT561 is not set -CONFIG_MTD_BF5xx=m -CONFIG_BFIN_FLASH_SIZE=0x0400000 -CONFIG_EBIU_FLASH_BASE=0x20000000 +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=m +CONFIG_MTD_PHYSMAP_START=0x20000000 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=2 # CONFIG_MTD_UCLINUX is not set # CONFIG_MTD_PLATRAM is not set @@ -647,8 +650,8 @@ CONFIG_SMC91X=y # CONFIG_SMSC911X is not set # CONFIG_DM9000 is not set CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y # CONFIG_AX88180 is not set +CONFIG_NETDEV_10000=y # # Wireless LAN @@ -717,7 +720,6 @@ CONFIG_INPUT_EVDEV=m # CONFIG_BFIN_SPORT is not set # CONFIG_BFIN_TIMER_LATENCY is not set # CONFIG_AD5304 is not set -# CONFIG_BF5xx_FBDMA is not set # CONFIG_VT is not set # CONFIG_SERIAL_NONSTANDARD is not set diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile index 8a4cfb293b2..318b9b692a4 100644 --- a/arch/blackfin/kernel/Makefile +++ b/arch/blackfin/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := init_task.o vmlinux.lds obj-y := \ entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \ sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \ - fixed_code.o cplbinit.o cacheinit.o reboot.o bfin_gpio.o + fixed_code.o reboot.o bfin_gpio.o obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o obj-$(CONFIG_MODULES) += module.o diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index b54446055a4..fa9debe8d5f 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -339,13 +339,13 @@ EXPORT_SYMBOL(set_dma_config); unsigned short set_bfin_dma_config(char direction, char flow_mode, - char intr_mode, char dma_mode, char width) + char intr_mode, char dma_mode, char width, char syncmode) { unsigned short config; config = ((direction << 1) | (width << 2) | (dma_mode << 4) | - (intr_mode << 6) | (flow_mode << 12) | RESTART); + (intr_mode << 6) | (flow_mode << 12) | (syncmode << 5)); return config; } EXPORT_SYMBOL(set_bfin_dma_config); diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index ce85d4bf34c..6bbe0a2fccb 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -7,7 +7,7 @@ * Description: GPIO Abstraction Layer * * Modified: - * Copyright 2007 Analog Devices Inc. + * Copyright 2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -83,6 +83,7 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/err.h> +#include <linux/proc_fs.h> #include <asm/blackfin.h> #include <asm/gpio.h> #include <asm/portmux.h> @@ -136,7 +137,6 @@ static unsigned short *port_fer[gpio_bank(MAX_BLACKFIN_GPIOS)] = { (unsigned short *) PORTG_FER, (unsigned short *) PORTH_FER, }; - #endif #ifdef BF527_FAMILY @@ -178,15 +178,13 @@ static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = { #endif static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; -static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)]; +static unsigned short reserved_peri_map[gpio_bank(MAX_RESOURCES)]; -#define MAX_RESOURCES 256 #define RESOURCE_LABEL_SIZE 16 -struct str_ident { +static struct str_ident { char name[RESOURCE_LABEL_SIZE]; -} *str_ident; - +} str_ident[MAX_RESOURCES]; #ifdef CONFIG_PM static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; @@ -212,7 +210,7 @@ static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INT #endif /* CONFIG_PM */ #if defined(BF548_FAMILY) -inline int check_gpio(unsigned short gpio) +inline int check_gpio(unsigned gpio) { if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 || gpio == GPIO_PH14 || gpio == GPIO_PH15 @@ -222,7 +220,7 @@ inline int check_gpio(unsigned short gpio) return 0; } #else -inline int check_gpio(unsigned short gpio) +inline int check_gpio(unsigned gpio) { if (gpio >= MAX_BLACKFIN_GPIOS) return -EINVAL; @@ -230,9 +228,13 @@ inline int check_gpio(unsigned short gpio) } #endif -static void set_label(unsigned short ident, const char *label) +void gpio_error(unsigned gpio) { + printk(KERN_ERR "bfin-gpio: GPIO %d wasn't requested!\n", gpio); +} +static void set_label(unsigned short ident, const char *label) +{ if (label && str_ident) { strncpy(str_ident[ident].name, label, RESOURCE_LABEL_SIZE); @@ -250,6 +252,11 @@ static char *get_label(unsigned short ident) static int cmp_label(unsigned short ident, const char *label) { + if (label == NULL) { + dump_stack(); + printk(KERN_ERR "Please provide none-null label\n"); + } + if (label && str_ident) return strncmp(str_ident[ident].name, label, strlen(label)); @@ -258,7 +265,7 @@ static int cmp_label(unsigned short ident, const char *label) } #if defined(BF527_FAMILY) || defined(BF537_FAMILY) -static void port_setup(unsigned short gpio, unsigned short usage) +static void port_setup(unsigned gpio, unsigned short usage) { if (!check_gpio(gpio)) { if (usage == GPIO_USAGE) @@ -269,7 +276,7 @@ static void port_setup(unsigned short gpio, unsigned short usage) } } #elif defined(BF548_FAMILY) -static void port_setup(unsigned short gpio, unsigned short usage) +static void port_setup(unsigned gpio, unsigned short usage) { if (usage == GPIO_USAGE) gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio); @@ -390,7 +397,7 @@ inline void portmux_setup(unsigned short portno, unsigned short function) #endif #ifndef BF548_FAMILY -static void default_gpio(unsigned short gpio) +static void default_gpio(unsigned gpio) { unsigned short bank, bitmask; unsigned long flags; @@ -410,7 +417,6 @@ static void default_gpio(unsigned short gpio) gpio_bankb[bank]->edge &= ~bitmask; AWA_DUMMY_READ(edge); local_irq_restore(flags); - } #else # define default_gpio(...) do { } while (0) @@ -418,12 +424,6 @@ static void default_gpio(unsigned short gpio) static int __init bfin_gpio_init(void) { - str_ident = kcalloc(MAX_RESOURCES, - sizeof(struct str_ident), GFP_KERNEL); - if (str_ident == NULL) - return -ENOMEM; - - memset(str_ident, 0, MAX_RESOURCES * sizeof(struct str_ident)); printk(KERN_INFO "Blackfin GPIO Controller\n"); @@ -454,10 +454,9 @@ arch_initcall(bfin_gpio_init); /* Set a specific bit */ #define SET_GPIO(name) \ -void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ +void set_gpio_ ## name(unsigned gpio, unsigned short arg) \ { \ unsigned long flags; \ - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ local_irq_save(flags); \ if (arg) \ gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \ @@ -477,10 +476,9 @@ SET_GPIO(both) #if ANOMALY_05000311 || ANOMALY_05000323 #define SET_GPIO_SC(name) \ -void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ +void set_gpio_ ## name(unsigned gpio, unsigned short arg) \ { \ unsigned long flags; \ - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ local_irq_save(flags); \ if (arg) \ gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \ @@ -492,9 +490,8 @@ void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ EXPORT_SYMBOL(set_gpio_ ## name); #else #define SET_GPIO_SC(name) \ -void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ +void set_gpio_ ## name(unsigned gpio, unsigned short arg) \ { \ - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ if (arg) \ gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \ else \ @@ -508,19 +505,17 @@ SET_GPIO_SC(maskb) SET_GPIO_SC(data) #if ANOMALY_05000311 || ANOMALY_05000323 -void set_gpio_toggle(unsigned short gpio) +void set_gpio_toggle(unsigned gpio) { unsigned long flags; - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); AWA_DUMMY_READ(toggle); local_irq_restore(flags); } #else -void set_gpio_toggle(unsigned short gpio) +void set_gpio_toggle(unsigned gpio) { - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); } #endif @@ -531,7 +526,7 @@ EXPORT_SYMBOL(set_gpio_toggle); #if ANOMALY_05000311 || ANOMALY_05000323 #define SET_GPIO_P(name) \ -void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \ +void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \ { \ unsigned long flags; \ local_irq_save(flags); \ @@ -542,7 +537,7 @@ void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \ EXPORT_SYMBOL(set_gpiop_ ## name); #else #define SET_GPIO_P(name) \ -void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \ +void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \ { \ gpio_bankb[gpio_bank(gpio)]->name = arg; \ } \ @@ -558,11 +553,10 @@ SET_GPIO_P(both) SET_GPIO_P(maska) SET_GPIO_P(maskb) - /* Get a specific bit */ #if ANOMALY_05000311 || ANOMALY_05000323 #define GET_GPIO(name) \ -unsigned short get_gpio_ ## name(unsigned short gpio) \ +unsigned short get_gpio_ ## name(unsigned gpio) \ { \ unsigned long flags; \ unsigned short ret; \ @@ -575,7 +569,7 @@ unsigned short get_gpio_ ## name(unsigned short gpio) \ EXPORT_SYMBOL(get_gpio_ ## name); #else #define GET_GPIO(name) \ -unsigned short get_gpio_ ## name(unsigned short gpio) \ +unsigned short get_gpio_ ## name(unsigned gpio) \ { \ return (0x01 & (gpio_bankb[gpio_bank(gpio)]->name >> gpio_sub_n(gpio))); \ } \ @@ -595,7 +589,7 @@ GET_GPIO(maskb) #if ANOMALY_05000311 || ANOMALY_05000323 #define GET_GPIO_P(name) \ -unsigned short get_gpiop_ ## name(unsigned short gpio) \ +unsigned short get_gpiop_ ## name(unsigned gpio) \ { \ unsigned long flags; \ unsigned short ret; \ @@ -608,7 +602,7 @@ unsigned short get_gpiop_ ## name(unsigned short gpio) \ EXPORT_SYMBOL(get_gpiop_ ## name); #else #define GET_GPIO_P(name) \ -unsigned short get_gpiop_ ## name(unsigned short gpio) \ +unsigned short get_gpiop_ ## name(unsigned gpio) \ { \ return (gpio_bankb[gpio_bank(gpio)]->name);\ } \ @@ -645,7 +639,7 @@ GET_GPIO_P(maskb) ************************************************************* * MODIFICATION HISTORY : **************************************************************/ -int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type) +int gpio_pm_wakeup_request(unsigned gpio, unsigned char type) { unsigned long flags; @@ -653,7 +647,6 @@ int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type) return -EINVAL; local_irq_save(flags); - wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio); wakeup_flags_map[gpio] = type; local_irq_restore(flags); @@ -662,7 +655,7 @@ int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type) } EXPORT_SYMBOL(gpio_pm_wakeup_request); -void gpio_pm_wakeup_free(unsigned short gpio) +void gpio_pm_wakeup_free(unsigned gpio) { unsigned long flags; @@ -677,7 +670,7 @@ void gpio_pm_wakeup_free(unsigned short gpio) } EXPORT_SYMBOL(gpio_pm_wakeup_free); -static int bfin_gpio_wakeup_type(unsigned short gpio, unsigned char type) +static int bfin_gpio_wakeup_type(unsigned gpio, unsigned char type) { port_setup(gpio, GPIO_USAGE); set_gpio_dir(gpio, 0); @@ -784,6 +777,14 @@ void gpio_pm_restore(void) } #endif +#else /* BF548_FAMILY */ + +unsigned short get_gpio_dir(unsigned gpio) +{ + return (0x01 & (gpio_array[gpio_bank(gpio)]->port_dir_clear >> gpio_sub_n(gpio))); +} +EXPORT_SYMBOL(get_gpio_dir); + #endif /* BF548_FAMILY */ /*********************************************************** @@ -1028,7 +1029,7 @@ EXPORT_SYMBOL(peripheral_free_list); * MODIFICATION HISTORY : **************************************************************/ -int gpio_request(unsigned short gpio, const char *label) +int gpio_request(unsigned gpio, const char *label) { unsigned long flags; @@ -1075,7 +1076,7 @@ int gpio_request(unsigned short gpio, const char *label) } EXPORT_SYMBOL(gpio_request); -void gpio_free(unsigned short gpio) +void gpio_free(unsigned gpio) { unsigned long flags; @@ -1085,7 +1086,7 @@ void gpio_free(unsigned short gpio) local_irq_save(flags); if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { - printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio); + gpio_error(gpio); dump_stack(); local_irq_restore(flags); return; @@ -1101,44 +1102,55 @@ void gpio_free(unsigned short gpio) } EXPORT_SYMBOL(gpio_free); + #ifdef BF548_FAMILY -void gpio_direction_input(unsigned short gpio) +int gpio_direction_input(unsigned gpio) { unsigned long flags; - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + gpio_error(gpio); + return -EINVAL; + } local_irq_save(flags); gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio); gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio); local_irq_restore(flags); + + return 0; } EXPORT_SYMBOL(gpio_direction_input); -void gpio_direction_output(unsigned short gpio) +int gpio_direction_output(unsigned gpio, int value) { unsigned long flags; - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + gpio_error(gpio); + return -EINVAL; + } local_irq_save(flags); gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio); + gpio_set_value(gpio, value); gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio); local_irq_restore(flags); + + return 0; } EXPORT_SYMBOL(gpio_direction_output); -void gpio_set_value(unsigned short gpio, unsigned short arg) +void gpio_set_value(unsigned gpio, int arg) { if (arg) gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio); else gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio); - } EXPORT_SYMBOL(gpio_set_value); -unsigned short gpio_get_value(unsigned short gpio) +int gpio_get_value(unsigned gpio) { return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> gpio_sub_n(gpio))); } @@ -1146,31 +1158,47 @@ EXPORT_SYMBOL(gpio_get_value); #else -void gpio_direction_input(unsigned short gpio) +int gpio_direction_input(unsigned gpio) { unsigned long flags; - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + gpio_error(gpio); + return -EINVAL; + } local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio); gpio_bankb[gpio_bank(gpio)]->inen |= gpio_bit(gpio); AWA_DUMMY_READ(inen); local_irq_restore(flags); + + return 0; } EXPORT_SYMBOL(gpio_direction_input); -void gpio_direction_output(unsigned short gpio) +int gpio_direction_output(unsigned gpio, int value) { unsigned long flags; - BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + gpio_error(gpio); + return -EINVAL; + } local_irq_save(flags); gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio); + + if (value) + gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio); + else + gpio_bankb[gpio_bank(gpio)]->data_clear = gpio_bit(gpio); + gpio_bankb[gpio_bank(gpio)]->dir |= gpio_bit(gpio); AWA_DUMMY_READ(dir); local_irq_restore(flags); + + return 0; } EXPORT_SYMBOL(gpio_direction_output); @@ -1190,7 +1218,40 @@ void bfin_gpio_reset_spi0_ssel1(void) port_setup(gpio, GPIO_USAGE); gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio); + AWA_DUMMY_READ(data_set); udelay(1); } #endif /*BF548_FAMILY */ + +#if defined(CONFIG_PROC_FS) +static int gpio_proc_read(char *buf, char **start, off_t offset, + int len, int *unused_i, void *unused_v) +{ + int c, outlen = 0; + + for (c = 0; c < MAX_RESOURCES; c++) { + if (!check_gpio(c) && (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) + len = sprintf(buf, "GPIO_%d: %s \t\tGPIO %s\n", c, + get_label(c), get_gpio_dir(c) ? "OUTPUT" : "INPUT"); + else if (reserved_peri_map[gpio_bank(c)] & gpio_bit(c)) + len = sprintf(buf, "GPIO_%d: %s \t\tPeripheral\n", c, get_label(c)); + else + continue; + buf += len; + outlen += len; + } + return outlen; +} + +static __init int gpio_register_proc(void) +{ + struct proc_dir_entry *proc_gpio; + + proc_gpio = create_proc_entry("gpio", S_IRUGO, NULL); + if (proc_gpio) + proc_gpio->read_proc = gpio_proc_read; + return proc_gpio != NULL; +} +__initcall(gpio_register_proc); +#endif diff --git a/arch/blackfin/kernel/cplb-mpu/Makefile b/arch/blackfin/kernel/cplb-mpu/Makefile new file mode 100644 index 00000000000..286b69357f9 --- /dev/null +++ b/arch/blackfin/kernel/cplb-mpu/Makefile @@ -0,0 +1,8 @@ +# +# arch/blackfin/kernel/cplb-nompu/Makefile +# + +obj-y := cplbinit.o cacheinit.o cplbmgr.o + +obj-$(CONFIG_CPLB_INFO) += cplbinfo.o + diff --git a/arch/blackfin/kernel/cplb-mpu/cacheinit.c b/arch/blackfin/kernel/cplb-mpu/cacheinit.c new file mode 100644 index 00000000000..9eecfa40318 --- /dev/null +++ b/arch/blackfin/kernel/cplb-mpu/cacheinit.c @@ -0,0 +1,62 @@ +/* + * Copyright 2004-2007 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/cpu.h> + +#include <asm/cacheflush.h> +#include <asm/blackfin.h> +#include <asm/cplb.h> +#include <asm/cplbinit.h> + +#if defined(CONFIG_BFIN_ICACHE) +void bfin_icache_init(void) +{ + unsigned long ctrl; + int i; + + SSYNC(); + for (i = 0; i < MAX_CPLBS; i++) { + bfin_write32(ICPLB_ADDR0 + i * 4, icplb_tbl[i].addr); + bfin_write32(ICPLB_DATA0 + i * 4, icplb_tbl[i].data); + } + ctrl = bfin_read_IMEM_CONTROL(); + ctrl |= IMC | ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); +} +#endif + +#if defined(CONFIG_BFIN_DCACHE) +void bfin_dcache_init(void) +{ + unsigned long ctrl; + int i; + + SSYNC(); + for (i = 0; i < MAX_CPLBS; i++) { + bfin_write32(DCPLB_ADDR0 + i * 4, dcplb_tbl[i].addr); + bfin_write32(DCPLB_DATA0 + i * 4, dcplb_tbl[i].data); + } + + ctrl = bfin_read_DMEM_CONTROL(); + ctrl |= DMEM_CNTR; + bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); +} +#endif diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c new file mode 100644 index 00000000000..bd072299f7f --- /dev/null +++ b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c @@ -0,0 +1,144 @@ +/* + * File: arch/blackfin/mach-common/cplbinfo.c + * Based on: + * Author: Sonic Zhang <sonic.zhang@analog.com> + * + * Created: Jan. 2005 + * Description: Display CPLB status + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/proc_fs.h> +#include <linux/uaccess.h> + +#include <asm/current.h> +#include <asm/system.h> +#include <asm/cplb.h> +#include <asm/cplbinit.h> +#include <asm/blackfin.h> + +#define CPLB_I 1 +#define CPLB_D 2 + +#define SYNC_SYS SSYNC() +#define SYNC_CORE CSYNC() + +#define CPLB_BIT_PAGESIZE 0x30000 + +static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" }; + +static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched) +{ + int i; + buf += sprintf(buf, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n"); + for (i = 0; i < MAX_CPLBS; i++) { + unsigned long data = tbl[i].data; + unsigned long addr = tbl[i].addr; + if (!(data & CPLB_VALID)) + continue; + + buf += + sprintf(buf, + "%d\t0x%08lx\t%06lx\t%s\t%c\t%c\t%c\t%c\n", + i, addr, data, + page_size_string_table[(data & 0x30000) >> 16], + (data & CPLB_USER_RD) ? 'Y' : 'N', + (data & CPLB_USER_WR) ? 'Y' : 'N', + (data & CPLB_SUPV_WR) ? 'Y' : 'N', + i < switched ? 'N' : 'Y'); + } + buf += sprintf(buf, "\n"); + + return buf; +} + +int cplbinfo_proc_output(char *buf) +{ + char *p; + + p = buf; + + p += sprintf(p, "------------------ CPLB Information ------------------\n\n"); + + if (bfin_read_IMEM_CONTROL() & ENICPLB) { + p += sprintf(p, "Instruction CPLB entry:\n"); + p = cplb_print_entry(p, icplb_tbl, first_switched_icplb); + } else + p += sprintf(p, "Instruction CPLB is disabled.\n\n"); + + if (1 || bfin_read_DMEM_CONTROL() & ENDCPLB) { + p += sprintf(p, "Data CPLB entry:\n"); + p = cplb_print_entry(p, dcplb_tbl, first_switched_dcplb); + } else + p += sprintf(p, "Data CPLB is disabled.\n"); + + p += sprintf(p, "ICPLB miss: %d\nICPLB supervisor miss: %d\n", + nr_icplb_miss, nr_icplb_supv_miss); + p += sprintf(p, "DCPLB miss: %d\nDCPLB protection fault:%d\n", + nr_dcplb_miss, nr_dcplb_prot); + p += sprintf(p, "CPLB flushes: %d\n", + nr_cplb_flush); + + return p - buf; +} + +static int cplbinfo_read_proc(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + int len; + + len = cplbinfo_proc_output(page); + if (len <= off + count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + return len; +} + +static int __init cplbinfo_init(void) +{ + struct proc_dir_entry *entry; + + entry = create_proc_entry("cplbinfo", 0, NULL); + if (!entry) + return -ENOMEM; + + entry->read_proc = cplbinfo_read_proc; + entry->data = NULL; + + return 0; +} + +static void __exit cplbinfo_exit(void) +{ + remove_proc_entry("cplbinfo", NULL); +} + +module_init(cplbinfo_init); +module_exit(cplbinfo_exit); diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c new file mode 100644 index 00000000000..e2e2b5079f5 --- /dev/null +++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c @@ -0,0 +1,91 @@ +/* + * Blackfin CPLB initialization + * + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/module.h> + +#include <asm/blackfin.h> +#include <asm/cplb.h> +#include <asm/cplbinit.h> + +struct cplb_entry icplb_tbl[MAX_CPLBS]; +struct cplb_entry dcplb_tbl[MAX_CPLBS]; + +int first_switched_icplb, first_switched_dcplb; +int first_mask_dcplb; + +void __init generate_cpl_tables(void) +{ + int i_d, i_i; + unsigned long addr; + unsigned long d_data, i_data; + unsigned long d_cache = 0, i_cache = 0; + +#ifdef CONFIG_BFIN_ICACHE + i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; +#endif + +#ifdef CONFIG_BFIN_DCACHE + d_cache = CPLB_L1_CHBL; +#ifdef CONFIG_BLKFIN_WT + d_cache |= CPLB_L1_AOW | CPLB_WT; +#endif +#endif + i_d = i_i = 0; + + /* Set up the zero page. */ + dcplb_tbl[i_d].addr = 0; + dcplb_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB; + +#if 0 + icplb_tbl[i_i].addr = 0; + icplb_tbl[i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB; +#endif + + /* Cover kernel memory with 4M pages. */ + addr = 0; + d_data = d_cache | CPLB_SUPV_WR | CPLB_VALID | PAGE_SIZE_4MB | CPLB_DIRTY; + i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB; + + for (; addr < memory_start; addr += 4 * 1024 * 1024) { + dcplb_tbl[i_d].addr = addr; + dcplb_tbl[i_d++].data = d_data; + icplb_tbl[i_i].addr = addr; + icplb_tbl[i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0); + } + + /* Cover L1 memory. One 4M area for code and data each is enough. */ +#if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0 + dcplb_tbl[i_d].addr = L1_DATA_A_START; + dcplb_tbl[i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB; +#endif + icplb_tbl[i_i].addr = L1_CODE_START; + icplb_tbl[i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB; + + first_mask_dcplb = i_d; + first_switched_dcplb = i_d + (1 << page_mask_order); + first_switched_icplb = i_i; + + while (i_d < MAX_CPLBS) + dcplb_tbl[i_d++].data = 0; + while (i_i < MAX_CPLBS) + icplb_tbl[i_i++].data = 0; +} diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c new file mode 100644 index 00000000000..c426a22f990 --- /dev/null +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -0,0 +1,338 @@ +/* + * Blackfin CPLB exception handling. + * Copyright 2004-2007 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/module.h> +#include <linux/mm.h> + +#include <asm/blackfin.h> +#include <asm/cplbinit.h> +#include <asm/mmu_context.h> + +#ifdef CONFIG_BFIN_ICACHE + +#define FAULT_RW (1 << 16) +#define FAULT_USERSUPV (1 << 17) + +int page_mask_nelts; +int page_mask_order; +unsigned long *current_rwx_mask; + +int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot; +int nr_cplb_flush; + +static inline void disable_dcplb(void) +{ + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_DMEM_CONTROL(); + ctrl &= ~ENDCPLB; + bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); +} + +static inline void enable_dcplb(void) +{ + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_DMEM_CONTROL(); + ctrl |= ENDCPLB; + bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); +} + +static inline void disable_icplb(void) +{ + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_IMEM_CONTROL(); + ctrl &= ~ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); +} + +static inline void enable_icplb(void) +{ + unsigned long ctrl; + SSYNC(); + ctrl = bfin_read_IMEM_CONTROL(); + ctrl |= ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); +} + +/* + * Given the contents of the status register, return the index of the + * CPLB that caused the fault. + */ +static inline int faulting_cplb_index(int status) +{ + int signbits = __builtin_bfin_norm_fr1x32(status & 0xFFFF); + return 30 - signbits; +} + +/* + * Given the contents of the status register and the DCPLB_DATA contents, + * return true if a write access should be permitted. + */ +static inline int write_permitted(int status, unsigned long data) +{ + if (status & FAULT_USERSUPV) + return !!(data & CPLB_SUPV_WR); + else + return !!(data & CPLB_USER_WR); +} + +/* Counters to implement round-robin replacement. */ +static int icplb_rr_index, dcplb_rr_index; + +/* + * Find an ICPLB entry to be evicted and return its index. + */ +static int evict_one_icplb(void) +{ + int i; + for (i = first_switched_icplb; i < MAX_CPLBS; i++) + if ((icplb_tbl[i].data & CPLB_VALID) == 0) + return i; + i = first_switched_icplb + icplb_rr_index; + if (i >= MAX_CPLBS) { + i -= MAX_CPLBS - first_switched_icplb; + icplb_rr_index -= MAX_CPLBS - first_switched_icplb; + } + icplb_rr_index++; + return i; +} + +static int evict_one_dcplb(void) +{ + int i; + for (i = first_switched_dcplb; i < MAX_CPLBS; i++) + if ((dcplb_tbl[i].data & CPLB_VALID) == 0) + return i; + i = first_switched_dcplb + dcplb_rr_index; + if (i >= MAX_CPLBS) { + i -= MAX_CPLBS - first_switched_dcplb; + dcplb_rr_index -= MAX_CPLBS - first_switched_dcplb; + } + dcplb_rr_index++; + return i; +} + +static noinline int dcplb_miss(void) +{ + unsigned long addr = bfin_read_DCPLB_FAULT_ADDR(); + int status = bfin_read_DCPLB_STATUS(); + unsigned long *mask; + int idx; + unsigned long d_data; + + nr_dcplb_miss++; + if (addr >= _ramend) + return CPLB_PROT_VIOL; + + d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; +#ifdef CONFIG_BFIN_DCACHE + d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; +#ifdef CONFIG_BLKFIN_WT + d_data |= CPLB_L1_AOW | CPLB_WT; +#endif +#endif + mask = current_rwx_mask; + if (mask) { + int page = addr >> PAGE_SHIFT; + int offs = page >> 5; + int bit = 1 << (page & 31); + + if (mask[offs] & bit) + d_data |= CPLB_USER_RD; + + mask += page_mask_nelts; + if (mask[offs] & bit) + d_data |= CPLB_USER_WR; + } + + idx = evict_one_dcplb(); + + addr &= PAGE_MASK; + dcplb_tbl[idx].addr = addr; + dcplb_tbl[idx].data = d_data; + + disable_dcplb(); + bfin_write32(DCPLB_DATA0 + idx * 4, d_data); + bfin_write32(DCPLB_ADDR0 + idx * 4, addr); + enable_dcplb(); + + return 0; +} + +static noinline int icplb_miss(void) +{ + unsigned long addr = bfin_read_ICPLB_FAULT_ADDR(); + int status = bfin_read_ICPLB_STATUS(); + int idx; + unsigned long i_data; + + nr_icplb_miss++; + if (status & FAULT_USERSUPV) + nr_icplb_supv_miss++; + + if (addr >= _ramend) + return CPLB_PROT_VIOL; + + /* + * First, try to find a CPLB that matches this address. If we + * find one, then the fact that we're in the miss handler means + * that the instruction crosses a page boundary. + */ + for (idx = first_switched_icplb; idx < MAX_CPLBS; idx++) { + if (icplb_tbl[idx].data & CPLB_VALID) { + unsigned long this_addr = icplb_tbl[idx].addr; + if (this_addr <= addr && this_addr + PAGE_SIZE > addr) { + addr += PAGE_SIZE; + break; + } + } + } + + i_data = CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4KB; +#ifdef CONFIG_BFIN_ICACHE + i_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; +#endif + + /* + * Two cases to distinguish - a supervisor access must necessarily + * be for a module page; we grant it unconditionally (could do better + * here in the future). Otherwise, check the x bitmap of the current + * process. + */ + if (!(status & FAULT_USERSUPV)) { + unsigned long *mask = current_rwx_mask; + + if (mask) { + int page = addr >> PAGE_SHIFT; + int offs = page >> 5; + int bit = 1 << (page & 31); + + mask += 2 * page_mask_nelts; + if (mask[offs] & bit) + i_data |= CPLB_USER_RD; + } + } + + idx = evict_one_icplb(); + addr &= PAGE_MASK; + icplb_tbl[idx].addr = addr; + icplb_tbl[idx].data = i_data; + + disable_icplb(); + bfin_write32(ICPLB_DATA0 + idx * 4, i_data); + bfin_write32(ICPLB_ADDR0 + idx * 4, addr); + enable_icplb(); + + return 0; +} + +static noinline int dcplb_protection_fault(void) +{ + unsigned long addr = bfin_read_DCPLB_FAULT_ADDR(); + int status = bfin_read_DCPLB_STATUS(); + + nr_dcplb_prot++; + + if (status & FAULT_RW) { + int idx = faulting_cplb_index(status); + unsigned long data = dcplb_tbl[idx].data; + if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) && + write_permitted(status, data)) { + data |= CPLB_DIRTY; + dcplb_tbl[idx].data = data; + bfin_write32(DCPLB_DATA0 + idx * 4, data); + return 0; + } + } + return CPLB_PROT_VIOL; +} + +int cplb_hdr(int seqstat, struct pt_regs *regs) +{ + int cause = seqstat & 0x3f; + switch (cause) { + case 0x23: + return dcplb_protection_fault(); + case 0x2C: + return icplb_miss(); + case 0x26: + return dcplb_miss(); + default: + return 1; + panic_cplb_error(seqstat, regs); + } +} + +void flush_switched_cplbs(void) +{ + int i; + + nr_cplb_flush++; + + disable_icplb(); + for (i = first_switched_icplb; i < MAX_CPLBS; i++) { + icplb_tbl[i].data = 0; + bfin_write32(ICPLB_DATA0 + i * 4, 0); + } + enable_icplb(); + + disable_dcplb(); + for (i = first_mask_dcplb; i < MAX_CPLBS; i++) { + dcplb_tbl[i].data = 0; + bfin_write32(DCPLB_DATA0 + i * 4, 0); + } + enable_dcplb(); +} + +void set_mask_dcplbs(unsigned long *masks) +{ + int i; + unsigned long addr = (unsigned long)masks; + unsigned long d_data; + current_rwx_mask = masks; + + if (!masks) + return; + + d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; +#ifdef CONFIG_BFIN_DCACHE + d_data |= CPLB_L1_CHBL; +#ifdef CONFIG_BLKFIN_WT + d_data |= CPLB_L1_AOW | CPLB_WT; +#endif +#endif + + disable_dcplb(); + for (i = first_mask_dcplb; i < first_switched_dcplb; i++) { + dcplb_tbl[i].addr = addr; + dcplb_tbl[i].data = d_data; + bfin_write32(DCPLB_DATA0 + i * 4, d_data); + bfin_write32(DCPLB_ADDR0 + i * 4, addr); + addr += PAGE_SIZE; + } + enable_dcplb(); +} + +#endif diff --git a/arch/blackfin/kernel/cplb-nompu/Makefile b/arch/blackfin/kernel/cplb-nompu/Makefile new file mode 100644 index 00000000000..d36ea9b5382 --- /dev/null +++ b/arch/blackfin/kernel/cplb-nompu/Makefile @@ -0,0 +1,8 @@ +# +# arch/blackfin/kernel/cplb-nompu/Makefile +# + +obj-y := cplbinit.o cacheinit.o cplbhdlr.o cplbmgr.o + +obj-$(CONFIG_CPLB_INFO) += cplbinfo.o + diff --git a/arch/blackfin/kernel/cacheinit.c b/arch/blackfin/kernel/cplb-nompu/cacheinit.c index 62cbba7364b..8a18399f607 100644 --- a/arch/blackfin/kernel/cacheinit.c +++ b/arch/blackfin/kernel/cplb-nompu/cacheinit.c @@ -42,6 +42,7 @@ void bfin_icache_init(void) ctrl = bfin_read_IMEM_CONTROL(); ctrl |= IMC | ENICPLB; bfin_write_IMEM_CONTROL(ctrl); + SSYNC(); } #endif @@ -63,5 +64,6 @@ void bfin_dcache_init(void) ctrl = bfin_read_DMEM_CONTROL(); ctrl |= DMEM_CNTR; bfin_write_DMEM_CONTROL(ctrl); + SSYNC(); } #endif diff --git a/arch/blackfin/mach-common/cplbhdlr.S b/arch/blackfin/kernel/cplb-nompu/cplbhdlr.S index 2788532de72..2788532de72 100644 --- a/arch/blackfin/mach-common/cplbhdlr.S +++ b/arch/blackfin/kernel/cplb-nompu/cplbhdlr.S diff --git a/arch/blackfin/mach-common/cplbinfo.c b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c index a4f0b428a34..a4f0b428a34 100644 --- a/arch/blackfin/mach-common/cplbinfo.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c diff --git a/arch/blackfin/kernel/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c index 6320bc45fbb..6320bc45fbb 100644 --- a/arch/blackfin/kernel/cplbinit.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c diff --git a/arch/blackfin/mach-common/cplbmgr.S b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S index 6f909cbfac7..f5cf3accef3 100644 --- a/arch/blackfin/mach-common/cplbmgr.S +++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S @@ -75,6 +75,15 @@ ENTRY(_cplb_mgr) * from the configuration table. */ + /* A multi-word instruction can cross a page boundary. This means the + * first part of the instruction can be in a valid page, but the + * second part is not, and hence generates the instruction miss. + * However, the fault address is for the start of the instruction, + * not the part that's in the bad page. Therefore, we have to check + * whether the fault address applies to a page that is already present + * in the table. + */ + P4.L = LO(ICPLB_FAULT_ADDR); P4.H = HI(ICPLB_FAULT_ADDR); @@ -87,7 +96,7 @@ ENTRY(_cplb_mgr) R4 = [P4]; /* Get faulting address*/ R6 = 64; /* Advance past the fault address, which*/ R6 = R6 + R4; /* we'll use if we find a match*/ - R3 = ((16 << 8) | 2); /* Extract mask, bits 16 and 17.*/ + R3 = ((16 << 8) | 2); /* Extract mask, two bits at posn 16 */ R5 = 0; .Lisearch: @@ -125,7 +134,9 @@ ENTRY(_cplb_mgr) P4.L = LO(IMEM_CONTROL); P4.H = HI(IMEM_CONTROL); - /* disable cplbs */ + /* Turn off CPLBs while we work, necessary according to HRM before + * modifying CPLB descriptors + */ R5 = [P4]; /* Control Register*/ BITCLR(R5,ENICPLB_P); CLI R1; @@ -179,7 +190,14 @@ ENTRY(_cplb_mgr) [P0 - 4] = R0; R0 = [P0 - 0x100]; [P0-0x104] = R0; -.Lie_move:P0+=4; +.Lie_move: + P0+=4; + + /* Clear ICPLB_DATA15, in case we don't find a replacement + * otherwise, we would have a duplicate entry, and will crash + */ + R0 = 0; + [P0 - 4] = R0; /* We've made space in the ICPLB table, so that ICPLB15 * is now free to be overwritten. Next, we have to determine @@ -504,14 +522,23 @@ ENTRY(_cplb_mgr) R0 = [P0++]; /* move data */ [P0 - 8] = R0; R0 = [P0-0x104] /* move address */ -.Lde_move: [P0-0x108] = R0; +.Lde_move: + [P0-0x108] = R0; + +.Lde_moved: + NOP; + + /* Clear DCPLB_DATA15, in case we don't find a replacement + * otherwise, we would have a duplicate entry, and will crash + */ + R0 = 0; + [P0 - 0x4] = R0; /* We've now made space in DCPLB15 for the new CPLB to be * installed. The next stage is to locate a CPLB in the * config table that covers the faulting address. */ -.Lde_moved:NOP; R0 = I0; /* Our faulting address */ P2.L = _dpdt_table; diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c index 724f4a5a1d4..60f67f90fe3 100644 --- a/arch/blackfin/kernel/early_printk.c +++ b/arch/blackfin/kernel/early_printk.c @@ -187,7 +187,7 @@ asmlinkage void __init init_early_exception_vectors(void) bfin_write_EVT15(early_trap); CSYNC(); - /* Set all the return from interupt, exception, NMI to a known place + /* Set all the return from interrupt, exception, NMI to a known place * so if we do a RETI, RETX or RETN by mistake - we go somewhere known * Note - don't change RETS - we are in a subroutine, or * RETE - since it might screw up if emulator is attached @@ -205,7 +205,7 @@ asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr) if (likely(early_console == NULL)) setup_early_printk(DEFAULT_EARLY_PORT); - dump_bfin_mem((void *)fp->retx); + dump_bfin_mem(fp); show_regs(fp); dump_bfin_trace_buffer(); diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 5bf15125f0d..023dc80af18 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -39,9 +39,6 @@ #include <asm/blackfin.h> #include <asm/fixed_code.h> -#define LED_ON 0 -#define LED_OFF 1 - asmlinkage void ret_from_fork(void); /* Points to the SDRAM backup memory for the stack that is currently in @@ -70,32 +67,6 @@ void (*pm_power_off)(void) = NULL; EXPORT_SYMBOL(pm_power_off); /* - * We are using a different LED from the one used to indicate timer interrupt. - */ -#if defined(CONFIG_BFIN_IDLE_LED) -static inline void leds_switch(int flag) -{ - unsigned short tmp = 0; - - tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT(); - SSYNC(); - - if (flag == LED_ON) - tmp &= ~CONFIG_BFIN_IDLE_LED_PIN; /* light on */ - else - tmp |= CONFIG_BFIN_IDLE_LED_PIN; /* light off */ - - bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp); - SSYNC(); - -} -#else -static inline void leds_switch(int flag) -{ -} -#endif - -/* * The idle loop on BFIN */ #ifdef CONFIG_IDLE_L1 @@ -106,12 +77,10 @@ void cpu_idle(void)__attribute__((l1_text)); void default_idle(void) { while (!need_resched()) { - leds_switch(LED_OFF); local_irq_disable(); if (likely(!need_resched())) idle_with_irq_disabled(); local_irq_enable(); - leds_switch(LED_ON); } } @@ -327,6 +296,7 @@ void finish_atomic_sections (struct pt_regs *regs) } #if defined(CONFIG_ACCESS_CHECK) +/* Return 1 if access to memory range is OK, 0 otherwise */ int _access_ok(unsigned long addr, unsigned long size) { if (size == 0) diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c index ae28aac6fec..483f93dfc1b 100644 --- a/arch/blackfin/kernel/reboot.c +++ b/arch/blackfin/kernel/reboot.c @@ -19,6 +19,11 @@ #define SYSCR_VAL 0x10 #endif +/* + * Delay min 5 SCLK cycles using worst case CCLK/SCLK ratio (15) + */ +#define SWRST_DELAY (5 * 15) + /* A system soft reset makes external memory unusable * so force this function into L1. */ @@ -34,7 +39,13 @@ void bfin_reset(void) while (1) { /* initiate system soft reset with magic 0x7 */ bfin_write_SWRST(0x7); - asm("ssync;"); + + /* Wait for System reset to actually reset, needs to be 5 SCLKs, */ + /* Assume CCLK / SCLK ratio is worst case (15), and use 5*15 */ + + asm("LSETUP(.Lfoo,.Lfoo) LC0 = %0\n .Lfoo: NOP;\n" + : : "a" (SWRST_DELAY) : "LC0", "LT0", "LB0"); + /* clear system soft reset */ bfin_write_SWRST(0); asm("ssync;"); diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index d2822010b7c..462cae89375 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -238,7 +238,13 @@ void __init setup_arch(char **cmdline_p) memory_end = _ramend - DMA_UNCACHED_REGION; _ramstart = (unsigned long)__bss_stop; + _rambase = (unsigned long)_stext; +#ifdef CONFIG_MPU + /* Round up to multiple of 4MB. */ + memory_start = (_ramstart + 0x3fffff) & ~0x3fffff; +#else memory_start = PAGE_ALIGN(_ramstart); +#endif #if defined(CONFIG_MTD_UCLINUX) /* generic memory mapped MTD driver */ @@ -307,6 +313,11 @@ void __init setup_arch(char **cmdline_p) printk(KERN_NOTICE "Warning: limiting memory to %liMB due to hardware anomaly 05000263\n", memory_end >> 20); #endif /* ANOMALY_05000263 */ +#ifdef CONFIG_MPU + page_mask_nelts = ((_ramend >> PAGE_SHIFT) + 31) / 32; + page_mask_order = get_order(3 * page_mask_nelts * sizeof(long)); +#endif + #if !defined(CONFIG_MTD_UCLINUX) memory_end -= SIZE_4K; /*In case there is no valid CPLB behind memory_end make sure we don't get to close*/ #endif @@ -315,8 +326,6 @@ void __init setup_arch(char **cmdline_p) init_mm.end_data = (unsigned long)_edata; init_mm.brk = (unsigned long)0; - init_leds(); - _bfin_swrst = bfin_read_SWRST(); if (_bfin_swrst & RESET_DOUBLE) diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c index beef057bd1d..5bd64e341df 100644 --- a/arch/blackfin/kernel/time.c +++ b/arch/blackfin/kernel/time.c @@ -42,75 +42,6 @@ static void time_sched_init(irqreturn_t(*timer_routine) (int, void *)); static unsigned long gettimeoffset(void); -static inline void do_leds(void); - -#if (defined(CONFIG_BFIN_ALIVE_LED) || defined(CONFIG_BFIN_IDLE_LED)) -void __init init_leds(void) -{ - unsigned int tmp = 0; - -#if defined(CONFIG_BFIN_ALIVE_LED) - /* config pins as output. */ - tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_DPORT(); - SSYNC(); - bfin_write_CONFIG_BFIN_ALIVE_LED_DPORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN); - SSYNC(); - - /* First set led be off */ - tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT(); - SSYNC(); - bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN); /* light off */ - SSYNC(); -#endif - -#if defined(CONFIG_BFIN_IDLE_LED) - /* config pins as output. */ - tmp = bfin_read_CONFIG_BFIN_IDLE_LED_DPORT(); - SSYNC(); - bfin_write_CONFIG_BFIN_IDLE_LED_DPORT(tmp | CONFIG_BFIN_IDLE_LED_PIN); - SSYNC(); - - /* First set led be off */ - tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT(); - SSYNC(); - bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp | CONFIG_BFIN_IDLE_LED_PIN); /* light off */ - SSYNC(); -#endif -} -#else -void __init init_leds(void) -{ -} -#endif - -#if defined(CONFIG_BFIN_ALIVE_LED) -static inline void do_leds(void) -{ - static unsigned int count = 50; - static int flag; - unsigned short tmp = 0; - - if (--count == 0) { - count = 50; - flag = ~flag; - } - tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT(); - SSYNC(); - - if (flag) - tmp &= ~CONFIG_BFIN_ALIVE_LED_PIN; /* light on */ - else - tmp |= CONFIG_BFIN_ALIVE_LED_PIN; /* light off */ - - bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp); - SSYNC(); - -} -#else -static inline void do_leds(void) -{ -} -#endif static struct irqaction bfin_timer_irq = { .name = "BFIN Timer Tick", @@ -205,7 +136,6 @@ irqreturn_t timer_interrupt(int irq, void *dummy) write_seqlock(&xtime_lock); do_timer(1); - do_leds(); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 21a55ef19cb..66b5f3e3ae2 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -36,8 +36,10 @@ #include <asm/cacheflush.h> #include <asm/blackfin.h> #include <asm/irq_handler.h> +#include <linux/irq.h> #include <asm/trace.h> #include <asm/fixed_code.h> +#include <asm/dma.h> #ifdef CONFIG_KGDB # include <linux/debugger.h> @@ -170,7 +172,7 @@ asmlinkage void double_fault_c(struct pt_regs *fp) oops_in_progress = 1; printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n"); dump_bfin_process(fp); - dump_bfin_mem((void *)fp->retx); + dump_bfin_mem(fp); show_regs(fp); panic("Double Fault - unrecoverable event\n"); @@ -195,9 +197,13 @@ asmlinkage void trap_c(struct pt_regs *fp) * we will kernel panic, so the system reboots. * If KGDB is enabled, don't set this for kernel breakpoints */ - if ((bfin_read_IPEND() & 0xFFC0) + + /* TODO: check to see if we are in some sort of deferred HWERR + * that we should be able to recover from, not kernel panic + */ + if ((bfin_read_IPEND() & 0xFFC0) && (trapnr != VEC_STEP) #ifdef CONFIG_KGDB - && trapnr != VEC_EXCPT02 + && (trapnr != VEC_EXCPT02) #endif ){ console_verbose(); @@ -433,6 +439,36 @@ asmlinkage void trap_c(struct pt_regs *fp) /* 0x3D - Reserved, Caught by default */ /* 0x3E - Reserved, Caught by default */ /* 0x3F - Reserved, Caught by default */ + case VEC_HWERR: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + switch (fp->seqstat & SEQSTAT_HWERRCAUSE) { + /* System MMR Error */ + case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR): + info.si_code = BUS_ADRALN; + sig = SIGBUS; + printk(KERN_NOTICE HWC_x2(KERN_NOTICE)); + break; + /* External Memory Addressing Error */ + case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR): + info.si_code = BUS_ADRERR; + sig = SIGBUS; + printk(KERN_NOTICE HWC_x3(KERN_NOTICE)); + break; + /* Performance Monitor Overflow */ + case (SEQSTAT_HWERRCAUSE_PERF_FLOW): + printk(KERN_NOTICE HWC_x12(KERN_NOTICE)); + break; + /* RAISE 5 instruction */ + case (SEQSTAT_HWERRCAUSE_RAISE_5): + printk(KERN_NOTICE HWC_x18(KERN_NOTICE)); + break; + default: /* Reserved */ + printk(KERN_NOTICE HWC_default(KERN_NOTICE)); + break; + } + CHK_DEBUGGER_TRAP(); + break; default: info.si_code = TRAP_ILLTRAP; sig = SIGTRAP; @@ -447,7 +483,7 @@ asmlinkage void trap_c(struct pt_regs *fp) if (sig != SIGTRAP) { unsigned long stack; dump_bfin_process(fp); - dump_bfin_mem((void *)fp->retx); + dump_bfin_mem(fp); show_regs(fp); /* Print out the trace buffer if it makes sense */ @@ -461,6 +497,7 @@ asmlinkage void trap_c(struct pt_regs *fp) dump_bfin_trace_buffer(); show_stack(current, &stack); if (oops_in_progress) { + print_modules(); #ifndef CONFIG_ACCESS_CHECK printk(KERN_EMERG "Please turn on " "CONFIG_ACCESS_CHECK\n"); @@ -474,13 +511,6 @@ asmlinkage void trap_c(struct pt_regs *fp) info.si_addr = (void *)fp->pc; force_sig_info(sig, &info, current); - /* Ensure that bad return addresses don't end up in an infinite - * loop, due to speculative loads/reads. This needs to be done after - * the signal has been sent. - */ - if (trapnr == VEC_CPLB_I_M && sig != SIGTRAP) - fp->pc = SAFE_USER_INSTRUCTION; - trace_buffer_restore(j); return; } @@ -616,8 +646,10 @@ void dump_bfin_process(struct pt_regs *fp) if (oops_in_progress) printk(KERN_EMERG "Kernel OOPS in progress\n"); - if (context & 0x0020) - printk(KERN_NOTICE "Deferred excecption or HW Error context\n"); + if (context & 0x0020 && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) + printk(KERN_NOTICE "HW Error context\n"); + else if (context & 0x0020) + printk(KERN_NOTICE "Defered Exception context\n"); else if (context & 0x3FC0) printk(KERN_NOTICE "Interrupt context\n"); else if (context & 0x4000) @@ -645,59 +677,124 @@ void dump_bfin_process(struct pt_regs *fp) "No Valid process in current context\n"); } -void dump_bfin_mem(void *retaddr) +void dump_bfin_mem(struct pt_regs *fp) { + unsigned short *addr, *erraddr, val = 0, err = 0; + char sti = 0, buf[6]; - if (retaddr >= (void *)FIXED_CODE_START && retaddr < (void *)physical_mem_end -#if L1_CODE_LENGTH != 0 - /* FIXME: Copy the code out of L1 Instruction SRAM through dma - memcpy. */ - && !(retaddr >= (void *)L1_CODE_START - && retaddr < (void *)(L1_CODE_START + L1_CODE_LENGTH)) -#endif - ) { - int i = ((unsigned int)retaddr & 0xFFFFFFF0) - 32; - unsigned short x = 0; - printk(KERN_NOTICE "return address: [0x%p]; contents of:", retaddr); - for (; i < ((unsigned int)retaddr & 0xFFFFFFF0) + 32; i += 2) { - if (!(i & 0xF)) - printk("\n" KERN_NOTICE "0x%08x: ", i); - - if (get_user(x, (unsigned short *)i)) - break; + if (unlikely((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR)) + erraddr = (void *)fp->pc; + else + erraddr = (void *)fp->retx; + + printk(KERN_NOTICE "return address: [0x%p]; contents of:", erraddr); + + for (addr = (unsigned short *)((unsigned long)erraddr & ~0xF) - 0x10; + addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10; + addr++) { + if (!((unsigned long)addr & 0xF)) + printk("\n" KERN_NOTICE "0x%p: ", addr); + + if (get_user(val, addr)) { + if (addr >= (unsigned short *)L1_CODE_START && + addr < (unsigned short *)(L1_CODE_START + L1_CODE_LENGTH)) { + dma_memcpy(&val, addr, sizeof(val)); + sprintf(buf, "%04x", val); + } else if (addr >= (unsigned short *)FIXED_CODE_START && + addr <= (unsigned short *)memory_start) { + val = bfin_read16(addr); + sprintf(buf, "%04x", val); + } else { + val = 0; + sprintf(buf, "????"); + } + } else + sprintf(buf, "%04x", val); + + if (addr == erraddr) { + printk("[%s]", buf); + err = val; + } else + printk(" %s ", buf); + + /* Do any previous instructions turn on interrupts? */ + if (addr <= erraddr && /* in the past */ + ((val >= 0x0040 && val <= 0x0047) || /* STI instruction */ + val == 0x017b)) /* [SP++] = RETI */ + sti = 1; + } + + printk("\n"); + + /* Hardware error interrupts can be deferred */ + if (unlikely(sti && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR && + oops_in_progress)){ + printk(KERN_NOTICE "Looks like this was a deferred error - sorry\n"); #ifndef CONFIG_DEBUG_HWERR - /* If one of the last few instructions was a STI - * it is likely that the error occured awhile ago - * and we just noticed. This only happens in kernel - * context, which should mean an oops is happening - */ - if (oops_in_progress && x >= 0x0040 && x <= 0x0047 && i <= 0) - panic("\n\nWARNING : You should reconfigure" - " the kernel to turn on\n" - " 'Hardware error interrupt" - " debugging'\n" - " The rest of this error" - " is meanless\n"); -#endif - if (i == (unsigned int)retaddr) - printk("[%04x]", x); - else - printk(" %04x ", x); + printk(KERN_NOTICE "The remaining message may be meaningless\n" + KERN_NOTICE "You should enable CONFIG_DEBUG_HWERR to get a" + " better idea where it came from\n"); +#else + /* If we are handling only one peripheral interrupt + * and current mm and pid are valid, and the last error + * was in that user space process's text area + * print it out - because that is where the problem exists + */ + if ((!(((fp)->ipend & ~0x30) & (((fp)->ipend & ~0x30) - 1))) && + (current->pid && current->mm)) { + /* And the last RETI points to the current userspace context */ + if ((fp + 1)->pc >= current->mm->start_code && + (fp + 1)->pc <= current->mm->end_code) { + printk(KERN_NOTICE "It might be better to look around here : \n"); + printk(KERN_NOTICE "-------------------------------------------\n"); + show_regs(fp + 1); + printk(KERN_NOTICE "-------------------------------------------\n"); + } } - printk("\n"); - } else - printk("\n" KERN_NOTICE - "Cannot look at the [PC] <%p> for it is" - " in unreadable memory - sorry\n", retaddr); +#endif + } } void show_regs(struct pt_regs *fp) { char buf [150]; + struct irqaction *action; + unsigned int i; + unsigned long flags; - printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n"); + printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted()); printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n", (long)fp->seqstat, fp->ipend, fp->syscfg); + printk(KERN_NOTICE " HWERRCAUSE: 0x%lx\n", + (fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14); + printk(KERN_NOTICE " EXCAUSE : 0x%lx\n", + fp->seqstat & SEQSTAT_EXCAUSE); + for (i = 6; i <= 15 ; i++) { + if (fp->ipend & (1 << i)) { + decode_address(buf, bfin_read32(EVT0 + 4*i)); + printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf); + } + } + + /* if no interrupts are going off, don't print this out */ + if (fp->ipend & ~0x3F) { + for (i = 0; i < (NR_IRQS - 1); i++) { + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; + if (!action) + goto unlock; + + decode_address(buf, (unsigned int)action->handler); + printk(KERN_NOTICE " logical irq %3d mapped : %s", i, buf); + for (action = action->next; action; action = action->next) { + decode_address(buf, (unsigned int)action->handler); + printk(", %s", buf); + } + printk("\n"); +unlock: + spin_unlock_irqrestore(&irq_desc[i].lock, flags); + } + } decode_address(buf, fp->rete); printk(KERN_NOTICE " RETE: %s\n", buf); @@ -708,9 +805,10 @@ void show_regs(struct pt_regs *fp) decode_address(buf, fp->rets); printk(KERN_NOTICE " RETS: %s\n", buf); decode_address(buf, fp->pc); - printk(KERN_NOTICE " PC: %s\n", buf); + printk(KERN_NOTICE " PC : %s\n", buf); - if ((long)fp->seqstat & SEQSTAT_EXCAUSE) { + if (((long)fp->seqstat & SEQSTAT_EXCAUSE) && + (((long)fp->seqstat & SEQSTAT_EXCAUSE) != VEC_HWERR)) { decode_address(buf, bfin_read_DCPLB_FAULT_ADDR()); printk(KERN_NOTICE "DCPLB_FAULT_ADDR: %s\n", buf); decode_address(buf, bfin_read_ICPLB_FAULT_ADDR()); @@ -824,7 +922,7 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp) printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void *)bfin_read_DCPLB_FAULT_ADDR()); printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void *)bfin_read_ICPLB_FAULT_ADDR()); dump_bfin_process(fp); - dump_bfin_mem((void *)fp->retx); + dump_bfin_mem(fp); show_regs(fp); dump_stack(); panic("Unrecoverable event\n"); diff --git a/arch/blackfin/lib/memcpy.S b/arch/blackfin/lib/memcpy.S index 2e6336492b4..e654a18a075 100644 --- a/arch/blackfin/lib/memcpy.S +++ b/arch/blackfin/lib/memcpy.S @@ -70,8 +70,8 @@ ENTRY(_memcpy) /* Check for aligned data.*/ R3 = R1 | R0; - R0 = 0x3; - R3 = R3 & R0; + R1 = 0x3; + R3 = R3 & R1; CC = R3; /* low bits set on either address? */ IF CC JUMP .Lnot_aligned; @@ -83,7 +83,6 @@ ENTRY(_memcpy) /* less than eight bytes... */ P2 = R2; LSETUP(.Lthree_start, .Lthree_end) LC0=P2; - R0 = R1; /* setup src address for return */ .Lthree_start: R3 = B[P1++] (X); .Lthree_end: @@ -95,7 +94,6 @@ ENTRY(_memcpy) /* There's at least eight bytes to copy. */ P2 += -1; /* because we unroll one iteration */ LSETUP(.Lword_loops, .Lword_loope) LC0=P2; - R0 = R1; I1 = P1; R3 = [I1++]; #if ANOMALY_05000202 @@ -120,7 +118,6 @@ ENTRY(_memcpy) .Lnot_aligned: /* From here, we're copying byte-by-byte. */ LSETUP (.Lbyte_start, .Lbyte_end) LC0=P2; - R0 = R1; /* Save src address for return */ .Lbyte_start: R1 = B[P1++] (X); .Lbyte_end: @@ -135,7 +132,6 @@ ENTRY(_memcpy) * Don't bother to work out alignment for * the reverse case. */ - R0 = R1; /* save src for later. */ P0 = P0 + P2; P0 += -1; P1 = P1 + P2; diff --git a/arch/blackfin/mach-bf527/Kconfig b/arch/blackfin/mach-bf527/Kconfig index 5c736837d4b..3cde4beeb21 100644 --- a/arch/blackfin/mach-bf527/Kconfig +++ b/arch/blackfin/mach-bf527/Kconfig @@ -43,7 +43,7 @@ endchoice choice prompt "UART1" - default BF527_UART1_PORTG + default BF527_UART1_PORTF help Select PORT used for UART1. See Hardware Reference Manual diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index 003e2ac654d..f8c411a24af 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -8,7 +8,7 @@ * * Modified: * Copyright 2005 National ICT Australia (NICTA) - * Copyright 2004-2007 Analog Devices Inc. + * Copyright 2004-2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -41,6 +41,7 @@ #include <linux/irq.h> #include <linux/interrupt.h> #include <linux/usb/sl811.h> +#include <linux/usb/musb.h> #include <asm/cplb.h> #include <asm/dma.h> #include <asm/bfin5xx_spi.h> @@ -105,6 +106,69 @@ void __exit bfin_isp1761_exit(void) arch_initcall(bfin_isp1761_init); #endif +#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) +static struct resource musb_resources[] = { + [0] = { + .start = 0xffc03800, + .end = 0xffc03cff, + .flags = IORESOURCE_MEM, + }, + [1] = { /* general IRQ */ + .start = IRQ_USB_INT0, + .end = IRQ_USB_INT0, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, + [2] = { /* DMA IRQ */ + .start = IRQ_USB_DMA, + .end = IRQ_USB_DMA, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct musb_hdrc_platform_data musb_plat = { +#if defined(CONFIG_USB_MUSB_OTG) + .mode = MUSB_OTG, +#elif defined(CONFIG_USB_MUSB_HDRC_HCD) + .mode = MUSB_HOST, +#elif defined(CONFIG_USB_GADGET_MUSB_HDRC) + .mode = MUSB_PERIPHERAL, +#endif + .multipoint = 0, +}; + +static u64 musb_dmamask = ~(u32)0; + +static struct platform_device musb_device = { + .name = "musb_hdrc", + .id = 0, + .dev = { + .dma_mask = &musb_dmamask, + .coherent_dma_mask = 0xffffffff, + .platform_data = &musb_plat, + }, + .num_resources = ARRAY_SIZE(musb_resources), + .resource = musb_resources, +}; +#endif + +#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE) + +static struct resource bf52x_t350mcqb_resources[] = { + { + .start = IRQ_PPI_ERROR, + .end = IRQ_PPI_ERROR, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bf52x_t350mcqb_device = { + .name = "bfin-t350mcqb", + .id = -1, + .num_resources = ARRAY_SIZE(bf52x_t350mcqb_resources), + .resource = bf52x_t350mcqb_resources, +}; +#endif + #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE) static struct mtd_partition partition_info[] = { { @@ -253,12 +317,7 @@ static struct resource sl811_hcd_resources[] = { void sl811_port_power(struct device *dev, int is_on) { gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS"); - gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS); - - if (is_on) - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1); - else - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0); + gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on); } #endif @@ -718,6 +777,28 @@ static struct platform_device bfin_pata_device = { }; #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE) &bf5xx_nand_device, @@ -739,6 +820,10 @@ static struct platform_device *stamp_devices[] __initdata = { &isp1362_hcd_device, #endif +#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) + &musb_device, +#endif + #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) &smc91x_device, #endif @@ -763,6 +848,10 @@ static struct platform_device *stamp_devices[] __initdata = { &bfin_fb_device, #endif +#if defined(CONFIG_FB_BFIN_T350MCQB) || defined(CONFIG_FB_BFIN_T350MCQB_MODULE) + &bf52x_t350mcqb_device, +#endif + #if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE) &bfin_fb_adv7393_device, #endif @@ -783,6 +872,10 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif }; static int __init stamp_init(void) diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c index 6bcf4047f89..a72c7a620fa 100644 --- a/arch/blackfin/mach-bf533/boards/H8606.c +++ b/arch/blackfin/mach-bf533/boards/H8606.c @@ -40,6 +40,7 @@ #endif #include <linux/pata_platform.h> #include <linux/irq.h> + #include <asm/dma.h> #include <asm/bfin5xx_spi.h> #include <asm/reboot.h> @@ -303,7 +304,77 @@ static struct platform_device bfin_uart_device = { }; #endif -static struct platform_device *stamp_devices[] __initdata = { +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) + +#include <linux/serial_8250.h> +#include <linux/serial.h> + +/* + * Configuration for two 16550 UARTS in FPGA at addresses 0x20200000 and 0x202000010. + * running at half system clock, both with interrupt output or-ed to PF8. Change to + * suit different FPGA configuration, or to suit real 16550 UARTS connected to the bus + */ + +static struct plat_serial8250_port serial8250_platform_data [] = { + { + .membase = 0x20200000, + .mapbase = 0x20200000, + .irq = IRQ_PF8, + .flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 66666667, + }, { + .membase = 0x20200010, + .mapbase = 0x20200010, + .irq = IRQ_PF8, + .flags = UPF_BOOT_AUTOCONF | UART_CONFIG_TYPE, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = 66666667, + }, { + } +}; + +static struct platform_device serial8250_device = { + .id = PLAT8250_DEV_PLATFORM, + .name = "serial8250", + .dev = { + .platform_data = serial8250_platform_data, + }, +}; + +#endif + +#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE) + +/* + * Configuration for one OpenCores keyboard controller in FPGA at address 0x20200030, + * interrupt output wired to PF9. Change to suit different FPGA configuration + */ + +static struct resource opencores_kbd_resources[] = { + [0] = { + .start = 0x20200030, + .end = 0x20300030 + 2, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PF9, + .end = IRQ_PF9, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, + }, +}; + +static struct platform_device opencores_kbd_device = { + .id = -1, + .name = "opencores-kbd", + .resource = opencores_kbd_resources, + .num_resources = ARRAY_SIZE(opencores_kbd_resources), +}; +#endif + +static struct platform_device *h8606_devices[] __initdata = { #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) &rtc_device, #endif @@ -327,13 +398,21 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) &bfin_uart_device, #endif + +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) + &serial8250_device, +#endif + +#if defined(CONFIG_KEYBOARD_OPENCORES) || defined(CONFIG_KEYBOARD_OPENCORES_MODULE) + &opencores_kbd_device, +#endif }; static int __init H8606_init(void) { printk(KERN_INFO "HV Sistemas H8606 board support by http://www.hvsistemas.com\n"); printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); - platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); + platform_add_devices(h8606_devices, ARRAY_SIZE(h8606_devices)); #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); #endif diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c index be852034a68..c37dd45c880 100644 --- a/arch/blackfin/mach-bf533/boards/ezkit.c +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -256,6 +256,50 @@ static struct platform_device bfin_pata_device = { }; #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PF7, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PF8, 1, "gpio-keys: BTN1"}, + {BTN_2, GPIO_PF9, 1, "gpio-keys: BTN2"}, + {BTN_3, GPIO_PF10, 1, "gpio-keys: BTN3"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) +#include <linux/i2c-gpio.h> + +static struct i2c_gpio_platform_data i2c_gpio_data = { + .sda_pin = 1, + .scl_pin = 0, + .sda_is_open_drain = 0, + .scl_is_open_drain = 0, + .udelay = 40, +}; + +static struct platform_device i2c_gpio_device = { + .name = "i2c-gpio", + .id = 0, + .dev = { + .platform_data = &i2c_gpio_data, + }, +}; +#endif + static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) &smc91x_device, @@ -280,6 +324,14 @@ static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + &i2c_gpio_device, +#endif }; static int __init ezkit_init(void) diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index 8fde8d83285..ac52b040b33 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -32,6 +32,7 @@ #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) @@ -108,6 +109,50 @@ static struct platform_device net2272_bfin_device = { }; #endif +static struct mtd_partition stamp_partitions[] = { + { + .name = "Bootloader", + .size = 0x20000, + .offset = 0, + }, { + .name = "Kernel", + .size = 0xE0000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "RootFS", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct physmap_flash_data stamp_flash_data = { + .width = 2, + .parts = stamp_partitions, + .nr_parts = ARRAY_SIZE(stamp_partitions), +}; + +static struct resource stamp_flash_resource[] = { + { + .name = "cfi_probe", + .start = 0x20000000, + .end = 0x203fffff, + .flags = IORESOURCE_MEM, + }, { + .start = CONFIG_ENET_FLASH_PIN, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device stamp_flash_device = { + .name = "BF5xx-Flash", + .id = 0, + .dev = { + .platform_data = &stamp_flash_data, + }, + .num_resources = ARRAY_SIZE(stamp_flash_resource), + .resource = stamp_flash_resource, +}; + #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) /* all SPI peripherals info goes here */ @@ -373,6 +418,49 @@ static struct platform_device bfin_pata_device = { }; #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PF5, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"}, + {BTN_2, GPIO_PF8, 1, "gpio-keys: BTN2"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) +#include <linux/i2c-gpio.h> + +static struct i2c_gpio_platform_data i2c_gpio_data = { + .sda_pin = 2, + .scl_pin = 3, + .sda_is_open_drain = 0, + .scl_is_open_drain = 0, + .udelay = 40, +}; + +static struct platform_device i2c_gpio_device = { + .name = "i2c-gpio", + .id = 0, + .dev = { + .platform_data = &i2c_gpio_data, + }, +}; +#endif + static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) &rtc_device, @@ -406,6 +494,15 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + &i2c_gpio_device, +#endif + &stamp_flash_device, }; static int __init stamp_init(void) @@ -418,12 +515,10 @@ static int __init stamp_init(void) return ret; #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) -# if defined(CONFIG_BFIN_SHARED_FLASH_ENET) /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */ bfin_write_FIO_DIR(bfin_read_FIO_DIR() | (1 << CONFIG_ENET_FLASH_PIN)); bfin_write_FIO_FLAG_S(1 << CONFIG_ENET_FLASH_PIN); SSYNC(); -# endif #endif #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) @@ -440,10 +535,8 @@ arch_initcall(stamp_init); void native_machine_restart(char *cmd) { -#if defined(CONFIG_BFIN_SHARED_FLASH_ENET) -# define BIT_TO_SET (1 << CONFIG_ENET_FLASH_PIN) +#define BIT_TO_SET (1 << CONFIG_ENET_FLASH_PIN) bfin_write_FIO_INEN(~BIT_TO_SET); bfin_write_FIO_DIR(BIT_TO_SET); bfin_write_FIO_FLAG_C(BIT_TO_SET); -#endif } diff --git a/arch/blackfin/mach-bf537/boards/Kconfig b/arch/blackfin/mach-bf537/boards/Kconfig index 96a15196e41..7e789dbef03 100644 --- a/arch/blackfin/mach-bf537/boards/Kconfig +++ b/arch/blackfin/mach-bf537/boards/Kconfig @@ -21,6 +21,12 @@ config PNAV10 help PNAV board support. +config CAMSIG_MINOTAUR + bool "Cambridge Signal Processing LTD Minotaur" + depends on (BF537) + help + Board supply package for CSP Minotaur + config GENERIC_BF537_BOARD bool "Generic" help diff --git a/arch/blackfin/mach-bf537/boards/Makefile b/arch/blackfin/mach-bf537/boards/Makefile index 94a85174283..87e450f29e3 100644 --- a/arch/blackfin/mach-bf537/boards/Makefile +++ b/arch/blackfin/mach-bf537/boards/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_GENERIC_BF537_BOARD) += generic_board.o obj-$(CONFIG_BFIN537_STAMP) += stamp.o led.o obj-$(CONFIG_BFIN537_BLUETECHNIX_CM) += cm_bf537.o obj-$(CONFIG_PNAV10) += pnav10.o +obj-$(CONFIG_CAMSIG_MINOTAUR) += minotaur.o diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c index c0fb06dbc42..8703b67d5ec 100644 --- a/arch/blackfin/mach-bf537/boards/cm_bf537.c +++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c @@ -29,6 +29,7 @@ */ #include <linux/device.h> +#include <linux/etherdevice.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> @@ -216,6 +217,12 @@ static struct platform_device rtc_device = { }; #endif +#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE) +static struct platform_device hitachi_fb_device = { + .name = "hitachi-tx09", +}; +#endif + #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) static struct resource smc91x_resources[] = { { @@ -374,6 +381,10 @@ static struct platform_device bfin_pata_device = { #endif static struct platform_device *cm_bf537_devices[] __initdata = { +#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE) + &hitachi_fb_device, +#endif + #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) &rtc_device, #endif diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c index 09f4bfbd235..3e52f3f5bd5 100644 --- a/arch/blackfin/mach-bf537/boards/generic_board.c +++ b/arch/blackfin/mach-bf537/boards/generic_board.c @@ -8,7 +8,7 @@ * * Modified: * Copyright 2005 National ICT Australia (NICTA) - * Copyright 2004-2007 Analog Devices Inc. + * Copyright 2004-2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -29,6 +29,7 @@ */ #include <linux/device.h> +#include <linux/etherdevice.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> @@ -204,12 +205,8 @@ static struct resource sl811_hcd_resources[] = { void sl811_port_power(struct device *dev, int is_on) { gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS"); - gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS); + gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on); - if (is_on) - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1); - else - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0); } #endif @@ -733,9 +730,11 @@ void native_machine_restart(char *cmd) bfin_gpio_reset_spi0_ssel1(); } +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) void bfin_get_ether_addr(char *addr) { random_ether_addr(addr); printk(KERN_WARNING "%s:%s: Setting Ethernet MAC to a random one\n", __FILE__, __func__); } EXPORT_SYMBOL(bfin_get_ether_addr); +#endif diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c new file mode 100644 index 00000000000..b8bbba85af5 --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/minotaur.c @@ -0,0 +1,317 @@ +/* + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +#include <linux/usb_isp1362.h> +#endif +#include <linux/pata_platform.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/usb_sl811.h> +#include <asm/dma.h> +#include <asm/bfin5xx_spi.h> +#include <asm/reboot.h> +#include <linux/spi/ad7877.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "CamSig Minotaur BF537"; + +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) +static struct resource bfin_pcmcia_cf_resources[] = { + { + .start = 0x20310000, /* IO PORT */ + .end = 0x20312000, + .flags = IORESOURCE_MEM, + }, { + .start = 0x20311000, /* Attribute Memory */ + .end = 0x20311FFF, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_PF4, + .end = IRQ_PF4, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + }, { + .start = IRQ_PF6, /* Card Detect PF6 */ + .end = IRQ_PF6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_pcmcia_cf_device = { + .name = "bfin_cf_pcmcia", + .id = -1, + .num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources), + .resource = bfin_pcmcia_cf_resources, +}; +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) +static struct platform_device bfin_mac_device = { + .name = "bfin_mac", +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20300000, + .end = 0x20300000 + 0x100, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) + +/* Partition sizes */ +#define FLASH_SIZE 0x00400000 +#define PSIZE_UBOOT 0x00030000 +#define PSIZE_INITRAMFS 0x00240000 + +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "uboot", + .size = PSIZE_UBOOT, + .offset = 0x000000, + .mask_flags = MTD_CAP_ROM + }, { + .name = "initramfs", + .size = PSIZE_INITRAMFS, + .offset = PSIZE_UBOOT + }, { + .name = "opt", + .size = FLASH_SIZE - (PSIZE_UBOOT + PSIZE_INITRAMFS), + .offset = PSIZE_UBOOT + PSIZE_INITRAMFS, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) +static struct bfin5xx_spi_chip spi_mmc_chip_info = { + .enable_dma = 1, + .bits_per_word = 8, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 0, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) + { + .modalias = "spi_mmc_dummy", + .max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 0, + .chip_select = 0, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "spi_mmc", + .max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 0, + .chip_select = CONFIG_SPI_MMC_CS_CHAN, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master bfin_spi0_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +/* SPI (0) */ +static struct resource bfin_spi0_resource[] = { + [0] = { + .start = SPI0_REGBASE, + .end = SPI0_REGBASE + 0xFF, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = CH_SPI, + .end = CH_SPI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_spi0_device = { + .name = "bfin-spi", + .id = 0, /* Bus number */ + .num_resources = ARRAY_SIZE(bfin_spi0_resource), + .resource = bfin_spi0_resource, + .dev = { + .platform_data = &bfin_spi0_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, { + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) +static struct resource bfin_twi0_resource[] = { + [0] = { + .start = TWI0_REGBASE, + .end = TWI0_REGBASE + 0xFF, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_TWI, + .end = IRQ_TWI, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device i2c_bfin_twi_device = { + .name = "i2c-bfin-twi", + .id = 0, + .num_resources = ARRAY_SIZE(bfin_twi0_resource), + .resource = bfin_twi0_resource, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) +static struct platform_device bfin_sport0_uart_device = { + .name = "bfin-sport-uart", + .id = 0, +}; + +static struct platform_device bfin_sport1_uart_device = { + .name = "bfin-sport-uart", + .id = 1, +}; +#endif + +static struct platform_device *minotaur_devices[] __initdata = { +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) + &bfin_pcmcia_cf_device, +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) + &bfin_mac_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &bfin_spi0_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) + &i2c_bfin_twi_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) + &bfin_sport0_uart_device, + &bfin_sport1_uart_device, +#endif + +}; + +static int __init minotaur_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, + ARRAY_SIZE(bfin_spi_board_info)); +#endif + + return 0; +} + +arch_initcall(minotaur_init); + +void native_machine_restart(char *cmd) +{ + /* workaround reboot hang when booting from SPI */ + if ((bfin_read_SYSCR() & 0x7) == 0x3) + bfin_gpio_reset_spi0_ssel1(); +} diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c index fd5f4a6f08e..509a8a236fd 100644 --- a/arch/blackfin/mach-bf537/boards/pnav10.c +++ b/arch/blackfin/mach-bf537/boards/pnav10.c @@ -8,7 +8,7 @@ * * Modified: * Copyright 2005 National ICT Australia (NICTA) - * Copyright 2004-2006 Analog Devices Inc. + * Copyright 2004-2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -29,6 +29,7 @@ */ #include <linux/device.h> +#include <linux/etherdevice.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> @@ -133,12 +134,8 @@ static struct resource sl811_hcd_resources[] = { void sl811_port_power(struct device *dev, int is_on) { gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS"); - gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS); + gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on); - if (is_on) - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1); - else - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0); } #endif diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 07b0dc273d2..772541548b7 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -32,6 +32,7 @@ #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) @@ -103,6 +104,30 @@ void __exit bfin_isp1761_exit(void) arch_initcall(bfin_isp1761_init); #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PF2, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PF3, 1, "gpio-keys: BTN1"}, + {BTN_2, GPIO_PF4, 1, "gpio-keys: BTN2"}, + {BTN_3, GPIO_PF5, 1, "gpio-keys: BTN3"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + #if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) static struct resource bfin_pcmcia_cf_resources[] = { { @@ -226,12 +251,7 @@ static struct resource sl811_hcd_resources[] = { void sl811_port_power(struct device *dev, int is_on) { gpio_request(CONFIG_USB_SL811_BFIN_GPIO_VBUS, "usb:SL811_VBUS"); - gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS); - - if (is_on) - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 1); - else - gpio_set_value(CONFIG_USB_SL811_BFIN_GPIO_VBUS, 0); + gpio_direction_output(CONFIG_USB_SL811_BFIN_GPIO_VBUS, is_on); } #endif @@ -320,6 +340,49 @@ static struct platform_device net2272_bfin_device = { }; #endif +static struct mtd_partition stamp_partitions[] = { + { + .name = "Bootloader", + .size = 0x20000, + .offset = 0, + }, { + .name = "Kernel", + .size = 0xE0000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "RootFS", + .size = 0x400000 - 0x20000 - 0xE0000 - 0x10000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "MAC Address", + .size = MTDPART_SIZ_FULL, + .offset = 0x3F0000, + .mask_flags = MTD_WRITEABLE, + } +}; + +static struct physmap_flash_data stamp_flash_data = { + .width = 2, + .parts = stamp_partitions, + .nr_parts = ARRAY_SIZE(stamp_partitions), +}; + +static struct resource stamp_flash_resource = { + .start = 0x20000000, + .end = 0x203fffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device stamp_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &stamp_flash_data, + }, + .num_resources = 1, + .resource = &stamp_flash_resource, +}; + #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) /* all SPI peripherals info goes here */ @@ -738,6 +801,11 @@ static struct platform_device *stamp_devices[] __initdata = { #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif + &stamp_flash_device, }; static int __init stamp_init(void) diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig index d8bd3b49f15..1bfcd8f646a 100644 --- a/arch/blackfin/mach-bf548/Kconfig +++ b/arch/blackfin/mach-bf548/Kconfig @@ -7,7 +7,7 @@ menu "BF548 Specific Configuration" config DEB_DMA_URGENT bool "DMA has priority over core for ext. accesses" depends on BF54x - default n + default y help Treat any DEB1, DEB2 and DEB3 request as Urgent diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c index d37d6653c4b..14860f04d1b 100644 --- a/arch/blackfin/mach-bf548/boards/ezkit.c +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -32,6 +32,7 @@ #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/irq.h> @@ -206,23 +207,6 @@ static struct platform_device smsc911x_device = { }; #endif -#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE) -static struct resource bf54x_hcd_resources[] = { - { - .start = 0xFFC03C00, - .end = 0xFFC040FF, - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device bf54x_hcd = { - .name = "bf54x-hcd", - .id = 0, - .num_resources = ARRAY_SIZE(bf54x_hcd_resources), - .resource = bf54x_hcd_resources, -}; -#endif - #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) static struct resource musb_resources[] = { [0] = { @@ -243,14 +227,14 @@ static struct resource musb_resources[] = { }; static struct musb_hdrc_platform_data musb_plat = { -#ifdef CONFIG_USB_MUSB_OTG +#if defined(CONFIG_USB_MUSB_OTG) .mode = MUSB_OTG, -#elif CONFIG_USB_MUSB_HDRC_HCD +#elif defined(CONFIG_USB_MUSB_HDRC_HCD) .mode = MUSB_HOST, -#elif CONFIG_USB_GADGET_MUSB_HDRC +#elif defined(CONFIG_USB_GADGET_MUSB_HDRC) .mode = MUSB_PERIPHERAL, #endif - .multipoint = 1, + .multipoint = 0, }; static u64 musb_dmamask = ~(u32)0; @@ -344,6 +328,44 @@ static struct platform_device bf54x_sdh_device = { }; #endif +static struct mtd_partition ezkit_partitions[] = { + { + .name = "Bootloader", + .size = 0x20000, + .offset = 0, + }, { + .name = "Kernel", + .size = 0xE0000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "RootFS", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct physmap_flash_data ezkit_flash_data = { + .width = 2, + .parts = ezkit_partitions, + .nr_parts = ARRAY_SIZE(ezkit_partitions), +}; + +static struct resource ezkit_flash_resource = { + .start = 0x20000000, + .end = 0x20ffffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ezkit_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &ezkit_flash_data, + }, + .num_resources = 1, + .resource = &ezkit_flash_resource, +}; + #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) /* all SPI peripherals info goes here */ #if defined(CONFIG_MTD_M25P80) \ @@ -531,6 +553,29 @@ static struct platform_device i2c_bfin_twi1_device = { #endif #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PB8, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PB9, 1, "gpio-keys: BTN1"}, + {BTN_2, GPIO_PB10, 1, "gpio-keys: BTN2"}, + {BTN_3, GPIO_PB11, 1, "gpio-keys: BTN3"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) &rtc_device, @@ -548,10 +593,6 @@ static struct platform_device *ezkit_devices[] __initdata = { &smsc911x_device, #endif -#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE) - &bf54x_hcd, -#endif - #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE) &musb_device, #endif @@ -583,6 +624,11 @@ static struct platform_device *ezkit_devices[] __initdata = { &i2c_bfin_twi1_device, #endif #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif + &ezkit_flash_device, }; static int __init stamp_init(void) diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S index 74b34c7f362..74fe258421a 100644 --- a/arch/blackfin/mach-bf548/head.S +++ b/arch/blackfin/mach-bf548/head.S @@ -298,8 +298,8 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; - p0.h = hi(SIC_IWR); - p0.l = lo(SIC_IWR); + p0.h = hi(SIC_IWR0); + p0.l = lo(SIC_IWR0); r0.l = 0x1; r0.h = 0x0; [p0] = r0; @@ -324,12 +324,25 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; +#if defined(CONFIG_BF54x) + P2.H = hi(EBIU_RSTCTL); + P2.L = lo(EBIU_RSTCTL); + R0 = [P2]; + BITSET (R0, 3); +#else P2.H = hi(EBIU_SDGCTL); P2.L = lo(EBIU_SDGCTL); R0 = [P2]; BITSET (R0, 24); +#endif [P2] = R0; SSYNC; +#if defined(CONFIG_BF54x) +.LSRR_MODE: + R0 = [P2]; + CC = BITTST(R0, 4); + if !CC JUMP .LSRR_MODE; +#endif r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ r0 = r0 << 9; /* Shift it over, */ @@ -361,6 +374,39 @@ ENTRY(_start_dma_code) w[p0] = r0.l; ssync; +#if defined(CONFIG_BF54x) + P2.H = hi(EBIU_RSTCTL); + P2.L = lo(EBIU_RSTCTL); + R0 = [P2]; + CC = BITTST(R0, 0); + if CC jump .Lskipddrrst; + BITSET (R0, 0); +.Lskipddrrst: + BITCLR (R0, 3); + [P2] = R0; + SSYNC; + + p0.l = lo(EBIU_DDRCTL0); + p0.h = hi(EBIU_DDRCTL0); + r0.l = lo(mem_DDRCTL0); + r0.h = hi(mem_DDRCTL0); + [p0] = r0; + ssync; + + p0.l = lo(EBIU_DDRCTL1); + p0.h = hi(EBIU_DDRCTL1); + r0.l = lo(mem_DDRCTL1); + r0.h = hi(mem_DDRCTL1); + [p0] = r0; + ssync; + + p0.l = lo(EBIU_DDRCTL2); + p0.h = hi(EBIU_DDRCTL2); + r0.l = lo(mem_DDRCTL2); + r0.h = hi(mem_DDRCTL2); + [p0] = r0; + ssync; +#else p0.l = lo(EBIU_SDRRC); p0.h = hi(EBIU_SDRRC); r0 = mem_SDRRC; @@ -394,9 +440,10 @@ ENTRY(_start_dma_code) R1 = R1 | R0; [P2] = R1; SSYNC; +#endif - p0.h = hi(SIC_IWR); - p0.l = lo(SIC_IWR); + p0.h = hi(SIC_IWR0); + p0.l = lo(SIC_IWR0); r0.l = lo(IWR_ENABLE_ALL); r0.h = hi(IWR_ENABLE_ALL); [p0] = r0; diff --git a/arch/blackfin/mach-bf548/ints-priority.c b/arch/blackfin/mach-bf548/ints-priority.c index cb0ebac53c7..2665653cee3 100644 --- a/arch/blackfin/mach-bf548/ints-priority.c +++ b/arch/blackfin/mach-bf548/ints-priority.c @@ -4,7 +4,7 @@ * Author: Michael Hennerich * * Created: - * Description: Set up the interupt priorities + * Description: Set up the interrupt priorities * * Modified: * Copyright 2004-2006 Analog Devices Inc. @@ -58,7 +58,7 @@ void program_IAR(void) ((CONFIG_IRQ_PINT1 - 7) << IRQ_PINT1_POS) | ((CONFIG_IRQ_MDMAS0 - 7) << IRQ_MDMAS0_POS) | ((CONFIG_IRQ_MDMAS1 - 7) << IRQ_MDMAS1_POS) | - ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCHDOG_POS)); + ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCH_POS)); bfin_write_SIC_IAR3(((CONFIG_IRQ_DMAC1_ERR - 7) << IRQ_DMAC1_ERR_POS) | ((CONFIG_IRQ_SPORT2_ERR - 7) << IRQ_SPORT2_ERR_POS) | diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c index c19cd29b948..3a79a9061bd 100644 --- a/arch/blackfin/mach-bf561/boards/cm_bf561.c +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -198,6 +198,13 @@ static struct platform_device bfin_spi0_device = { #endif /* spi master and devices */ +#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE) +static struct platform_device hitachi_fb_device = { + .name = "hitachi-tx09", +}; +#endif + + #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) static struct resource smc91x_resources[] = { @@ -315,6 +322,10 @@ static struct platform_device bfin_pata_device = { static struct platform_device *cm_bf561_devices[] __initdata = { +#if defined(CONFIG_FB_HITACHI_TX09) || defined(CONFIG_FB_HITACHI_TX09_MODULE) + &hitachi_fb_device, +#endif + #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) &bfin_uart_device, #endif diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 4ff8f6e7a11..7601c3be1b5 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -29,6 +29,9 @@ #include <linux/device.h> #include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/irq.h> #include <linux/interrupt.h> @@ -155,6 +158,44 @@ static struct platform_device bfin_uart_device = { }; #endif +static struct mtd_partition ezkit_partitions[] = { + { + .name = "Bootloader", + .size = 0x20000, + .offset = 0, + }, { + .name = "Kernel", + .size = 0xE0000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "RootFS", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct physmap_flash_data ezkit_flash_data = { + .width = 2, + .parts = ezkit_partitions, + .nr_parts = ARRAY_SIZE(ezkit_partitions), +}; + +static struct resource ezkit_flash_resource = { + .start = 0x20000000, + .end = 0x207fffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ezkit_flash_device = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &ezkit_flash_data, + }, + .num_resources = 1, + .resource = &ezkit_flash_resource, +}; + #ifdef CONFIG_SPI_BFIN #if defined(CONFIG_SND_BLACKFIN_AD1836) \ || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) @@ -246,6 +287,50 @@ static struct platform_device bfin_pata_device = { }; #endif +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) +#include <linux/input.h> +#include <linux/gpio_keys.h> + +static struct gpio_keys_button bfin_gpio_keys_table[] = { + {BTN_0, GPIO_PF5, 1, "gpio-keys: BTN0"}, + {BTN_1, GPIO_PF6, 1, "gpio-keys: BTN1"}, + {BTN_2, GPIO_PF7, 1, "gpio-keys: BTN2"}, + {BTN_3, GPIO_PF8, 1, "gpio-keys: BTN3"}, +}; + +static struct gpio_keys_platform_data bfin_gpio_keys_data = { + .buttons = bfin_gpio_keys_table, + .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table), +}; + +static struct platform_device bfin_device_gpiokeys = { + .name = "gpio-keys", + .dev = { + .platform_data = &bfin_gpio_keys_data, + }, +}; +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) +#include <linux/i2c-gpio.h> + +static struct i2c_gpio_platform_data i2c_gpio_data = { + .sda_pin = 1, + .scl_pin = 0, + .sda_is_open_drain = 0, + .scl_is_open_drain = 0, + .udelay = 40, +}; + +static struct platform_device i2c_gpio_device = { + .name = "i2c-gpio", + .id = 0, + .dev = { + .platform_data = &i2c_gpio_data, + }, +}; +#endif + static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) &smc91x_device, @@ -258,12 +343,23 @@ static struct platform_device *ezkit_devices[] __initdata = { #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) &bfin_spi0_device, #endif + #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) &bfin_uart_device, #endif + #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) &bfin_pata_device, #endif + +#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) + &bfin_device_gpiokeys, +#endif + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + &i2c_gpio_device, +#endif + &ezkit_flash_device, }; static int __init ezkit_init(void) diff --git a/arch/blackfin/mach-bf561/coreb.c b/arch/blackfin/mach-bf561/coreb.c index 5d1d21b4c2a..1b44e9e6dc3 100644 --- a/arch/blackfin/mach-bf561/coreb.c +++ b/arch/blackfin/mach-bf561/coreb.c @@ -33,7 +33,9 @@ #include <linux/ioport.h> #include <linux/module.h> #include <linux/uaccess.h> +#include <linux/fs.h> #include <asm/dma.h> +#include <asm/cacheflush.h> #define MODULE_VER "v0.1" @@ -90,11 +92,12 @@ static ssize_t coreb_write(struct file *file, const char *buf, size_t count, coreb_dma_done = 0; + flush_dcache_range((unsigned long)buf, (unsigned long)(buf+len)); /* Source Channel */ set_dma_start_addr(CH_MEM_STREAM2_SRC, (unsigned long)buf); set_dma_x_count(CH_MEM_STREAM2_SRC, len); set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char)); - set_dma_config(CH_MEM_STREAM2_SRC, RESTART); + set_dma_config(CH_MEM_STREAM2_SRC, 0); /* Destination Channel */ set_dma_start_addr(CH_MEM_STREAM2_DEST, coreb_base + p); set_dma_x_count(CH_MEM_STREAM2_DEST, len); @@ -135,11 +138,12 @@ static ssize_t coreb_read(struct file *file, char *buf, size_t count, coreb_dma_done = 0; + invalidate_dcache_range((unsigned long)buf, (unsigned long)(buf+len)); /* Source Channel */ set_dma_start_addr(CH_MEM_STREAM2_SRC, coreb_base + p); set_dma_x_count(CH_MEM_STREAM2_SRC, len); set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char)); - set_dma_config(CH_MEM_STREAM2_SRC, RESTART); + set_dma_config(CH_MEM_STREAM2_SRC, 0); /* Destination Channel */ set_dma_start_addr(CH_MEM_STREAM2_DEST, (unsigned long)buf); set_dma_x_count(CH_MEM_STREAM2_DEST, len); @@ -266,7 +270,7 @@ static int coreb_ioctl(struct inode *inode, struct file *file, coreb_status |= COREB_IS_RUNNING; bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~0x0020); SSYNC(); - spin_lock_irq(&coreb_lock); + spin_unlock_irq(&coreb_lock); break; #if defined(CONFIG_BF561_COREB_RESET) case CMD_COREB_STOP: @@ -275,7 +279,7 @@ static int coreb_ioctl(struct inode *inode, struct file *file, bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() | 0x0020); bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080); coreb_status &= ~COREB_IS_RUNNING; - spin_lock_irq(&coreb_lock); + spin_unlock_irq(&coreb_lock); break; case CMD_COREB_RESET: printk(KERN_INFO "Resetting Core B\n"); diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile index 4d7733dfd5d..8636d4284bd 100644 --- a/arch/blackfin/mach-common/Makefile +++ b/arch/blackfin/mach-common/Makefile @@ -3,10 +3,9 @@ # obj-y := \ - cache.o cacheinit.o cplbhdlr.o cplbmgr.o entry.o \ + cache.o cacheinit.o entry.o \ interrupt.o lock.o irqpanic.o arch_checks.o -obj-$(CONFIG_CPLB_INFO) += cplbinfo.o obj-$(CONFIG_BFIN_SINGLE_CORE) += ints-priority-sc.o obj-$(CONFIG_BFIN_DUAL_CORE) += ints-priority-dc.o obj-$(CONFIG_PM) += pm.o dpmc.o diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S index 39fbc286110..b82c096e198 100644 --- a/arch/blackfin/mach-common/dpmc.S +++ b/arch/blackfin/mach-common/dpmc.S @@ -38,6 +38,9 @@ ENTRY(_unmask_wdog_wakeup_evt) #if defined(CONFIG_BF561) P0.H = hi(SICA_IWR1); P0.L = lo(SICA_IWR1); +#elif defined(CONFIG_BF54x) || defined(CONFIG_BF52x) + P0.h = HI(SIC_IWR0); + P0.l = LO(SIC_IWR0); #else P0.h = HI(SIC_IWR); P0.l = LO(SIC_IWR); @@ -172,7 +175,7 @@ ENTRY(_sleep_mode) call _set_sic_iwr; R0 = 0xFFFF (Z); - call _set_rtc_istat + call _set_rtc_istat; P0.H = hi(PLL_CTL); P0.L = lo(PLL_CTL); @@ -210,7 +213,7 @@ ENTRY(_hibernate_mode) call _set_sic_iwr; R0 = 0xFFFF (Z); - call _set_rtc_istat + call _set_rtc_istat; P0.H = hi(VR_CTL); P0.L = lo(VR_CTL); @@ -236,7 +239,7 @@ ENTRY(_deep_sleep) call _set_sic_iwr; - call _set_sdram_srfs; + call _set_dram_srfs; /* Clear all the interrupts,bits sticky */ R0 = 0xFFFF (Z); @@ -253,7 +256,7 @@ ENTRY(_deep_sleep) SSYNC; IDLE; - call _unset_sdram_srfs; + call _unset_dram_srfs; call _test_pll_locked; @@ -285,23 +288,22 @@ ENTRY(_sleep_deeper) P3 = R0; R0 = IWR_ENABLE(0); call _set_sic_iwr; - call _set_sdram_srfs; + call _set_dram_srfs; /* Set SDRAM Self Refresh */ /* Clear all the interrupts,bits sticky */ R0 = 0xFFFF (Z); - call _set_rtc_istat - + call _set_rtc_istat; P0.H = hi(PLL_DIV); P0.L = lo(PLL_DIV); R6 = W[P0](z); R0.L = 0xF; - W[P0] = R0.l; + W[P0] = R0.l; /* Set Max VCO to SCLK divider */ P0.H = hi(PLL_CTL); P0.L = lo(PLL_CTL); R5 = W[P0](z); R0.L = (CONFIG_MIN_VCO_HZ/CONFIG_CLKIN_HZ) << 9; - W[P0] = R0.l; + W[P0] = R0.l; /* Set Min CLKIN to VCO multiplier */ SSYNC; IDLE; @@ -317,29 +319,28 @@ ENTRY(_sleep_deeper) R1 = R1|R2; R2 = DEPOSIT(R7, R1); - W[P0] = R2; + W[P0] = R2; /* Set Min Core Voltage */ SSYNC; IDLE; call _test_pll_locked; + R0 = P3; + call _set_sic_iwr; /* Set Awake from IDLE */ + P0.H = hi(PLL_CTL); P0.L = lo(PLL_CTL); R0 = W[P0](z); BITSET (R0, 3); - W[P0] = R0.L; - - R0 = P3; - call _set_sic_iwr; - + W[P0] = R0.L; /* Turn CCLK OFF */ SSYNC; IDLE; call _test_pll_locked; R0 = IWR_ENABLE(0); - call _set_sic_iwr; + call _set_sic_iwr; /* Set Awake from IDLE PLL */ P0.H = hi(VR_CTL); P0.L = lo(VR_CTL); @@ -352,15 +353,15 @@ ENTRY(_sleep_deeper) P0.H = hi(PLL_DIV); P0.L = lo(PLL_DIV); - W[P0]= R6; + W[P0]= R6; /* Restore CCLK and SCLK divider */ P0.H = hi(PLL_CTL); P0.L = lo(PLL_CTL); - w[p0] = R5; + w[p0] = R5; /* Restore VCO multiplier */ IDLE; call _test_pll_locked; - call _unset_sdram_srfs; + call _unset_dram_srfs; /* SDRAM Self Refresh Off */ STI R4; @@ -368,25 +369,47 @@ ENTRY(_sleep_deeper) ( R7:0, P5:0 ) = [SP++]; RTS; -ENTRY(_set_sdram_srfs) - /* set the sdram to self refresh mode */ +ENTRY(_set_dram_srfs) + /* set the dram to self refresh mode */ +#if defined(CONFIG_BF54x) + P0.H = hi(EBIU_RSTCTL); + P0.L = lo(EBIU_RSTCTL); + R2 = [P0]; + R3.H = hi(SRREQ); + R3.L = lo(SRREQ); +#else P0.H = hi(EBIU_SDGCTL); P0.L = lo(EBIU_SDGCTL); R2 = [P0]; R3.H = hi(SRFS); R3.L = lo(SRFS); +#endif R2 = R2|R3; [P0] = R2; ssync; +#if defined(CONFIG_BF54x) +.LSRR_MODE: + R2 = [P0]; + CC = BITTST(R2, 4); + if !CC JUMP .LSRR_MODE; +#endif RTS; -ENTRY(_unset_sdram_srfs) - /* set the sdram out of self refresh mode */ +ENTRY(_unset_dram_srfs) + /* set the dram out of self refresh mode */ +#if defined(CONFIG_BF54x) + P0.H = hi(EBIU_RSTCTL); + P0.L = lo(EBIU_RSTCTL); + R2 = [P0]; + R3.H = hi(SRREQ); + R3.L = lo(SRREQ); +#else P0.H = hi(EBIU_SDGCTL); P0.L = lo(EBIU_SDGCTL); R2 = [P0]; R3.H = hi(SRFS); R3.L = lo(SRFS); +#endif R3 = ~R3; R2 = R2&R3; [P0] = R2; @@ -394,8 +417,13 @@ ENTRY(_unset_sdram_srfs) RTS; ENTRY(_set_sic_iwr) +#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) + P0.H = hi(SIC_IWR0); + P0.L = lo(SIC_IWR0); +#else P0.H = hi(SIC_IWR); P0.L = lo(SIC_IWR); +#endif [P0] = R0; SSYNC; RTS; diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index dc9d3ee2e69..56ff51bc8c2 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -95,6 +95,9 @@ ENTRY(_ex_workaround_261) R6 = 0x26; /* Data CPLB Miss */ cc = R6 == R7; if cc jump _ex_dcplb_miss (BP); + R6 = 0x23; /* Data CPLB Miss */ + cc = R6 == R7; + if cc jump _ex_dcplb_viol (BP); /* Handle 0x23 Data CPLB Protection Violation * and Data CPLB Multiple Hits - Linux Trap Zero */ @@ -102,17 +105,33 @@ ENTRY(_ex_workaround_261) ENDPROC(_ex_workaround_261) #else +#ifdef CONFIG_MPU +#define _ex_dviol _ex_dcplb_viol +#else #define _ex_dviol _ex_trap_c +#endif #define _ex_dmiss _ex_dcplb_miss #define _ex_dmult _ex_trap_c #endif + +ENTRY(_ex_dcplb_viol) ENTRY(_ex_dcplb_miss) ENTRY(_ex_icplb_miss) (R7:6,P5:4) = [sp++]; ASTAT = [sp++]; SAVE_ALL_SYS +#ifdef CONFIG_MPU + R0 = SEQSTAT; + R1 = SP; + sp += -12; + call _cplb_hdr; + sp += 12; + CC = R0 == 0; + IF !CC JUMP _handle_bad_cplb; +#else call __cplb_hdr; +#endif DEBUG_START_HWTRACE(p5, r7) RESTORE_ALL_SYS SP = EX_SCRATCH_REG; @@ -329,7 +348,7 @@ ENTRY(_exception_to_level5) R7 = R7 + R6; P5 = R7; R1 = [P5]; - [SP + 8] = r1; + [SP + PT_SEQSTAT] = r1; r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ SP += -12; @@ -633,9 +652,7 @@ ENTRY(_ret_from_exception) [sp + PT_IPEND] = r0; 1: - r1 = 0x37(Z); - r2 = ~r1; - r2.h = 0; + r2 = LO(~0x37) (Z); r0 = r2 & r0; cc = r0 == 0; if !cc jump 4f; /* if not return to user mode, get out */ @@ -1364,6 +1381,7 @@ ENTRY(_sys_call_table) .long _sys_set_robust_list .long _sys_get_robust_list /* 355 */ .long _sys_fallocate + .long _sys_semtimedop .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall .endr diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S index 4de376418a1..7f752c87fe4 100644 --- a/arch/blackfin/mach-common/interrupt.S +++ b/arch/blackfin/mach-common/interrupt.S @@ -34,9 +34,13 @@ #include <asm/entry.h> #include <asm/asm-offsets.h> #include <asm/trace.h> +#include <asm/traps.h> +#include <asm/thread_info.h> #include <asm/mach-common/context.S> +.extern _ret_from_exception + #ifdef CONFIG_I_ENTRY_L1 .section .l1.text #else @@ -117,8 +121,8 @@ __common_int_entry: #if ANOMALY_05000283 || ANOMALY_05000315 cc = r7 == r7; - p5.h = 0xffc0; - p5.l = 0x0014; + p5.h = HI(CHIPID); + p5.l = LO(CHIPID); if cc jump 1f; r7.l = W[p5]; 1: @@ -134,26 +138,22 @@ __common_int_entry: /* interrupt routine for ivhw - 5 */ ENTRY(_evt_ivhw) - SAVE_CONTEXT + SAVE_ALL_SYS #ifdef CONFIG_FRAME_POINTER fp = 0; #endif + #if ANOMALY_05000283 cc = r7 == r7; - p5.h = 0xffc0; - p5.l = 0x0014; + p5.h = HI(CHIPID); + p5.l = LO(CHIPID); if cc jump 1f; r7.l = W[p5]; 1: #endif - trace_buffer_stop(p0, r0); - - r0 = IRQ_HWERR; - r1 = sp; - #ifdef CONFIG_HARDWARE_PM - r7 = SEQSTAT; + r7 = [sp + PT_SEQSTAT]; r7 = r7 >>> 0xe; r6 = 0x1F; r7 = r7 & r6; @@ -161,11 +161,29 @@ ENTRY(_evt_ivhw) cc = r7 == r5; if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */ #endif - + # We are going to dump something out, so make sure we print IPEND properly + p2.l = lo(IPEND); + p2.h = hi(IPEND); + r0 = [p2]; + [sp + PT_IPEND] = r0; + + /* set the EXCAUSE to HWERR for trap_c */ + r0 = [sp + PT_SEQSTAT]; + R1.L = LO(VEC_HWERR); + R1.H = HI(VEC_HWERR); + R0 = R0 | R1; + [sp + PT_SEQSTAT] = R0; + + r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ SP += -12; - call _irq_panic; + call _trap_c; SP += 12; + + call _ret_from_exception; +.Lcommon_restore_all_sys: + RESTORE_ALL_SYS rti; + #ifdef CONFIG_HARDWARE_PM .Lcall_do_ovf: @@ -173,9 +191,11 @@ ENTRY(_evt_ivhw) call _pm_overflow; SP += 12; - jump .Lcommon_restore_context; + jump .Lcommon_restore_all_sys; #endif +ENDPROC(_evt_ivhw) + /* Interrupt routine for evt2 (NMI). * We don't actually use this, so just return. * For inner circle type details, please see: diff --git a/arch/blackfin/mach-common/ints-priority-dc.c b/arch/blackfin/mach-common/ints-priority-dc.c index 4882f0e801a..8d18d6b163b 100644 --- a/arch/blackfin/mach-common/ints-priority-dc.c +++ b/arch/blackfin/mach-common/ints-priority-dc.c @@ -222,11 +222,12 @@ static void bf561_gpio_unmask_irq(unsigned int irq) static unsigned int bf561_gpio_irq_startup(unsigned int irq) { unsigned int ret; + char buf[8]; u16 gpionr = irq - IRQ_PF0; if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; @@ -250,6 +251,7 @@ static int bf561_gpio_irq_type(unsigned int irq, unsigned int type) { unsigned int ret; + char buf[8]; u16 gpionr = irq - IRQ_PF0; @@ -265,8 +267,8 @@ static int bf561_gpio_irq_type(unsigned int irq, unsigned int type) IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c index 147f0731087..dec42acb5de 100644 --- a/arch/blackfin/mach-common/ints-priority-sc.c +++ b/arch/blackfin/mach-common/ints-priority-sc.c @@ -313,6 +313,7 @@ static void bfin_demux_error_irq(unsigned int int_err_irq, static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)]; + static void bfin_gpio_ack_irq(unsigned int irq) { u16 gpionr = irq - IRQ_PF0; @@ -352,9 +353,11 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq) { unsigned int ret; u16 gpionr = irq - IRQ_PF0; + char buf[8]; if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; } @@ -376,6 +379,7 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) { unsigned int ret; + char buf[8]; u16 gpionr = irq - IRQ_PF0; if (type == IRQ_TYPE_PROBE) { @@ -388,7 +392,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; } @@ -478,6 +483,10 @@ static void bfin_demux_gpio_irq(unsigned int intb_irq, static unsigned char irq2pint_lut[NR_PINTS]; static unsigned char pint2irq_lut[NR_PINT_SYS_IRQS * NR_PINT_BITS]; +static unsigned int gpio_both_edge_triggered[NR_PINT_SYS_IRQS]; +static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; + + struct pin_int_t { unsigned int mask_set; unsigned int mask_clear; @@ -544,13 +553,20 @@ void init_pint_lut(void) } -static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; - static void bfin_gpio_ack_irq(unsigned int irq) { u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + u32 pintbit = PINT_BIT(pint_val); + u8 bank = PINT_2_BANK(pint_val); + + if (unlikely(gpio_both_edge_triggered[bank] & pintbit)) { + if (pint[bank]->invert_set & pintbit) + pint[bank]->invert_clear = pintbit; + else + pint[bank]->invert_set = pintbit; + } + pint[bank]->request = pintbit; - pint[PINT_2_BANK(pint_val)]->request = PINT_BIT(pint_val); SSYNC(); } @@ -560,6 +576,13 @@ static void bfin_gpio_mask_ack_irq(unsigned int irq) u32 pintbit = PINT_BIT(pint_val); u8 bank = PINT_2_BANK(pint_val); + if (unlikely(gpio_both_edge_triggered[bank] & pintbit)) { + if (pint[bank]->invert_set & pintbit) + pint[bank]->invert_clear = pintbit; + else + pint[bank]->invert_set = pintbit; + } + pint[bank]->request = pintbit; pint[bank]->mask_clear = pintbit; SSYNC(); @@ -587,7 +610,8 @@ static void bfin_gpio_unmask_irq(unsigned int irq) static unsigned int bfin_gpio_irq_startup(unsigned int irq) { unsigned int ret; - u16 gpionr = irq - IRQ_PA0; + char buf[8]; + u16 gpionr = irq_to_gpio(irq); u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; if (pint_val == IRQ_NOT_AVAIL) { @@ -598,7 +622,8 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq) } if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; } @@ -611,16 +636,19 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq) static void bfin_gpio_irq_shutdown(unsigned int irq) { + u16 gpionr = irq_to_gpio(irq); + bfin_gpio_mask_irq(irq); - gpio_free(irq - IRQ_PA0); - gpio_enabled[gpio_bank(irq - IRQ_PA0)] &= ~gpio_bit(irq - IRQ_PA0); + gpio_free(gpionr); + gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); } static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) { unsigned int ret; - u16 gpionr = irq - IRQ_PA0; + char buf[8]; + u16 gpionr = irq_to_gpio(irq); u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; u32 pintbit = PINT_BIT(pint_val); u8 bank = PINT_2_BANK(pint_val); @@ -638,7 +666,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { - ret = gpio_request(gpionr, "IRQ"); + snprintf(buf, sizeof buf, "IRQ %d", irq); + ret = gpio_request(gpionr, buf); if (ret) return ret; } @@ -651,28 +680,33 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) gpio_direction_input(gpionr); - if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { - pint[bank]->edge_set = pintbit; - } else { - pint[bank]->edge_clear = pintbit; - } - if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW))) pint[bank]->invert_set = pintbit; /* low or falling edge denoted by one */ else - pint[bank]->invert_set = pintbit; /* high or rising edge denoted by zero */ + pint[bank]->invert_clear = pintbit; /* high or rising edge denoted by zero */ - if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) - pint[bank]->invert_set = pintbit; - else - pint[bank]->invert_set = pintbit; + if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { - SSYNC(); + gpio_both_edge_triggered[bank] |= pintbit; - if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + if (gpio_get_value(gpionr)) + pint[bank]->invert_set = pintbit; + else + pint[bank]->invert_clear = pintbit; + } else { + gpio_both_edge_triggered[bank] &= ~pintbit; + } + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { + pint[bank]->edge_set = pintbit; set_irq_handler(irq, handle_edge_irq); - else + } else { + pint[bank]->edge_clear = pintbit; set_irq_handler(irq, handle_level_irq); + } + + SSYNC(); return 0; } diff --git a/arch/blackfin/mach-common/irqpanic.c b/arch/blackfin/mach-common/irqpanic.c index b22959b197e..606ded9ff4e 100644 --- a/arch/blackfin/mach-common/irqpanic.c +++ b/arch/blackfin/mach-common/irqpanic.c @@ -46,9 +46,6 @@ void irq_panic(int reason, struct pt_regs *regs) __attribute__ ((l1_text)); */ asmlinkage void irq_panic(int reason, struct pt_regs *regs) { - int sig = 0; - siginfo_t info; - #ifdef CONFIG_DEBUG_ICACHE_CHECK unsigned int cmd, tag, ca, cache_hi, cache_lo, *pa; unsigned short i, j, die; @@ -136,53 +133,6 @@ asmlinkage void irq_panic(int reason, struct pt_regs *regs) } #endif - printk(KERN_EMERG "\n"); - printk(KERN_EMERG "Exception: IRQ 0x%x entered\n", reason); - printk(KERN_EMERG " code=[0x%08lx], stack frame=0x%08lx, " - " bad PC=0x%08lx\n", - (unsigned long)regs->seqstat, - (unsigned long)regs, - (unsigned long)regs->pc); - if (reason == 0x5) { - printk(KERN_EMERG "----------- HARDWARE ERROR -----------\n"); - - /* There is only need to check for Hardware Errors, since other - * EXCEPTIONS are handled in TRAPS.c (MH) - */ - switch (regs->seqstat & SEQSTAT_HWERRCAUSE) { - case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR): /* System MMR Error */ - info.si_code = BUS_ADRALN; - sig = SIGBUS; - printk(KERN_EMERG HWC_x2(KERN_EMERG)); - break; - case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR): /* External Memory Addressing Error */ - info.si_code = BUS_ADRERR; - sig = SIGBUS; - printk(KERN_EMERG HWC_x3(KERN_EMERG)); - break; - case (SEQSTAT_HWERRCAUSE_PERF_FLOW): /* Performance Monitor Overflow */ - printk(KERN_EMERG HWC_x12(KERN_EMERG)); - break; - case (SEQSTAT_HWERRCAUSE_RAISE_5): /* RAISE 5 instruction */ - printk(KERN_EMERG HWC_x18(KERN_EMERG)); - break; - default: /* Reserved */ - printk(KERN_EMERG HWC_default(KERN_EMERG)); - break; - } - } - - regs->ipend = bfin_read_IPEND(); - dump_bfin_process(regs); - dump_bfin_mem((void *)regs->pc); - show_regs(regs); - if (0 == (info.si_signo = sig) || 0 == user_mode(regs)) /* in kernelspace */ - panic("Unhandled IRQ or exceptions!\n"); - else { /* in userspace */ - info.si_errno = 0; - info.si_addr = (void *)regs->pc; - force_sig_info(sig, &info, current); - } } #ifdef CONFIG_HARDWARE_PM diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index dac51fb06f2..81930f7d06f 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -77,7 +77,15 @@ void bfin_pm_suspend_standby_enter(void) gpio_pm_restore(); +#if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) + bfin_write_SIC_IWR0(IWR_ENABLE_ALL); + bfin_write_SIC_IWR1(IWR_ENABLE_ALL); +# ifdef CONFIG_BF54x + bfin_write_SIC_IWR2(IWR_ENABLE_ALL); +# endif +#else bfin_write_SIC_IWR(IWR_ENABLE_ALL); +#endif local_irq_restore(flags); } @@ -85,7 +93,15 @@ void bfin_pm_suspend_standby_enter(void) #if defined(CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR) sleep_deeper(CONFIG_PM_WAKEUP_SIC_IWR); +# if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) + bfin_write_SIC_IWR0(IWR_ENABLE_ALL); + bfin_write_SIC_IWR1(IWR_ENABLE_ALL); +# ifdef CONFIG_BF54x + bfin_write_SIC_IWR2(IWR_ENABLE_ALL); +# endif +# else bfin_write_SIC_IWR(IWR_ENABLE_ALL); +# endif #endif /* CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR */ } diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index e97ea8fc8dc..eb1a12ac9e3 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -128,8 +128,8 @@ void __init paging_init(void) void __init mem_init(void) { unsigned int codek = 0, datak = 0, initk = 0; + unsigned int reservedpages = 0, freepages = 0; unsigned long tmp; - unsigned int len = _ramend - _rambase; unsigned long start_mem = memory_start; unsigned long end_mem = memory_end; @@ -138,19 +138,36 @@ void __init mem_init(void) start_mem = PAGE_ALIGN(start_mem); max_mapnr = num_physpages = MAP_NR(high_memory); - printk(KERN_INFO "Physical pages: %lx\n", num_physpages); + printk(KERN_INFO "Kernel managed physical pages: %lu\n", + num_physpages); /* This will put all memory onto the freelists. */ totalram_pages = free_all_bootmem(); + reservedpages = 0; + for (tmp = 0; tmp < max_mapnr; tmp++) + if (PageReserved(pfn_to_page(tmp))) + reservedpages++; + freepages = max_mapnr - reservedpages; + + /* do not count in kernel image between _rambase and _ramstart */ + reservedpages -= (_ramstart - _rambase) >> PAGE_SHIFT; +#if (defined(CONFIG_BFIN_ICACHE) && ANOMALY_05000263) + reservedpages += (_ramend - memory_end - DMA_UNCACHED_REGION) >> + PAGE_SHIFT; +#endif + codek = (_etext - _stext) >> 10; - datak = (__bss_stop - __bss_start) >> 10; initk = (__init_end - __init_begin) >> 10; + datak = ((_ramstart - _rambase) >> 10) - codek - initk; - tmp = nr_free_pages() << PAGE_SHIFT; printk(KERN_INFO - "Memory available: %luk/%uk RAM, (%uk init code, %uk kernel code, %uk data, %uk dma)\n", - tmp >> 10, len >> 10, initk, codek, datak, DMA_UNCACHED_REGION >> 10); + "Memory available: %luk/%luk RAM, " + "(%uk init code, %uk kernel code, " + "%uk data, %uk dma, %uk reserved)\n", + (unsigned long) freepages << (PAGE_SHIFT-10), _ramend >> 10, + initk, codek, datak, DMA_UNCACHED_REGION >> 10, + (reservedpages << (PAGE_SHIFT-10))); /* Initialize the blackfin L1 Memory. */ l1sram_init(); @@ -184,13 +201,15 @@ static __init void free_init_pages(const char *what, unsigned long begin, unsign #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { +#ifndef CONFIG_MPU free_init_pages("initrd memory", start, end); +#endif } #endif void __init free_initmem(void) { -#ifdef CONFIG_RAMKERNEL +#if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU free_init_pages("unused kernel memory", (unsigned long)(&__init_begin), (unsigned long)(&__init_end)); diff --git a/arch/mips/au1000/common/platform.c b/arch/mips/au1000/common/platform.c index d51e18fb789..841904cdef4 100644 --- a/arch/mips/au1000/common/platform.c +++ b/arch/mips/au1000/common/platform.c @@ -270,6 +270,24 @@ static struct platform_device smc91x_device = { #endif +/* All Alchemy demoboards with I2C have this #define in their headers */ +#ifdef SMBUS_PSC_BASE +static struct resource pbdb_smbus_resources[] = { + { + .start = SMBUS_PSC_BASE, + .end = SMBUS_PSC_BASE + 0x24 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device pbdb_smbus_device = { + .name = "au1xpsc_smbus", + .id = 0, /* bus number */ + .num_resources = ARRAY_SIZE(pbdb_smbus_resources), + .resource = pbdb_smbus_resources, +}; +#endif + static struct platform_device *au1xxx_platform_devices[] __initdata = { &au1xxx_usb_ohci_device, &au1x00_pcmcia_device, @@ -287,6 +305,9 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = { #ifdef CONFIG_MIPS_DB1200 &smc91x_device, #endif +#ifdef SMBUS_PSC_BASE + &pbdb_smbus_device, +#endif }; int __init au1xxx_platform_init(void) diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c index b84f8df325c..cb0a7493ff6 100644 --- a/arch/ppc/platforms/83xx/mpc834x_sys.c +++ b/arch/ppc/platforms/83xx/mpc834x_sys.c @@ -224,26 +224,6 @@ mpc834x_sys_init_IRQ(void) ipic_set_default_priority(); } -#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374) -extern ulong ds1374_get_rtc_time(void); -extern int ds1374_set_rtc_time(ulong); - -static int __init -mpc834x_rtc_hookup(void) -{ - struct timespec tv; - - ppc_md.get_rtc_time = ds1374_get_rtc_time; - ppc_md.set_rtc_time = ds1374_set_rtc_time; - - tv.tv_nsec = 0; - tv.tv_sec = (ppc_md.get_rtc_time)(); - do_settimeofday(&tv); - - return 0; -} -late_initcall(mpc834x_rtc_hookup); -#endif static __inline__ void mpc834x_sys_set_bat(void) { diff --git a/arch/ppc/platforms/85xx/tqm85xx.c b/arch/ppc/platforms/85xx/tqm85xx.c index 4ee2bd156dc..27ce389c122 100644 --- a/arch/ppc/platforms/85xx/tqm85xx.c +++ b/arch/ppc/platforms/85xx/tqm85xx.c @@ -258,27 +258,6 @@ int tqm85xx_show_cpuinfo(struct seq_file *m) return 0; } -#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_DS1337) -extern ulong ds1337_get_rtc_time(void); -extern int ds1337_set_rtc_time(unsigned long nowtime); - -static int __init -tqm85xx_rtc_hookup(void) -{ - struct timespec tv; - - ppc_md.set_rtc_time = ds1337_set_rtc_time; - ppc_md.get_rtc_time = ds1337_get_rtc_time; - - tv.tv_nsec = 0; - tv.tv_sec = (ppc_md.get_rtc_time)(); - do_settimeofday(&tv); - - return 0; -} -late_initcall(tqm85xx_rtc_hookup); -#endif - #ifdef CONFIG_PCI /* * interrupt routing diff --git a/arch/ppc/platforms/katana.c b/arch/ppc/platforms/katana.c index 52f63e6f085..fe6e88cdb1c 100644 --- a/arch/ppc/platforms/katana.c +++ b/arch/ppc/platforms/katana.c @@ -838,27 +838,6 @@ katana_find_end_of_memory(void) return bdp->bi_memsize; } -#if defined(CONFIG_I2C_MV64XXX) && defined(CONFIG_SENSORS_M41T00) -extern ulong m41t00_get_rtc_time(void); -extern int m41t00_set_rtc_time(ulong); - -static int __init -katana_rtc_hookup(void) -{ - struct timespec tv; - - ppc_md.get_rtc_time = m41t00_get_rtc_time; - ppc_md.set_rtc_time = m41t00_set_rtc_time; - - tv.tv_nsec = 0; - tv.tv_sec = (ppc_md.get_rtc_time)(); - do_settimeofday(&tv); - - return 0; -} -late_initcall(katana_rtc_hookup); -#endif - #if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(CONFIG_SERIAL_MPSC_CONSOLE) static void __init katana_map_io(void) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 1330061020a..6ef54d27fc0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -276,9 +276,6 @@ source "kernel/Kconfig.preempt" source "mm/Kconfig" -config HOLES_IN_ZONE - def_bool y - comment "I/O subsystem configuration" config MACHCHK_WARNING diff --git a/arch/s390/crypto/Kconfig b/arch/s390/crypto/Kconfig deleted file mode 100644 index d1defbbfcd8..00000000000 --- a/arch/s390/crypto/Kconfig +++ /dev/null @@ -1,60 +0,0 @@ -config CRYPTO_SHA1_S390 - tristate "SHA1 digest algorithm" - depends on S390 - select CRYPTO_ALGAPI - help - This is the s390 hardware accelerated implementation of the - SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). - -config CRYPTO_SHA256_S390 - tristate "SHA256 digest algorithm" - depends on S390 - select CRYPTO_ALGAPI - help - This is the s390 hardware accelerated implementation of the - SHA256 secure hash standard (DFIPS 180-2). - - This version of SHA implements a 256 bit hash with 128 bits of - security against collision attacks. - -config CRYPTO_DES_S390 - tristate "DES and Triple DES cipher algorithms" - depends on S390 - select CRYPTO_ALGAPI - select CRYPTO_BLKCIPHER - help - This us the s390 hardware accelerated implementation of the - DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). - -config CRYPTO_AES_S390 - tristate "AES cipher algorithms" - depends on S390 - select CRYPTO_ALGAPI - select CRYPTO_BLKCIPHER - help - This is the s390 hardware accelerated implementation of the - AES cipher algorithms (FIPS-197). AES uses the Rijndael - algorithm. - - Rijndael appears to be consistently a very good performer in - both hardware and software across a wide range of computing - environments regardless of its use in feedback or non-feedback - modes. Its key setup time is excellent, and its key agility is - good. Rijndael's very low memory requirements make it very well - suited for restricted-space environments, in which it also - demonstrates excellent performance. Rijndael's operations are - among the easiest to defend against power and timing attacks. - - On s390 the System z9-109 currently only supports the key size - of 128 bit. - -config S390_PRNG - tristate "Pseudo random number generator device driver" - depends on S390 - default "m" - help - Select this option if you want to use the s390 pseudo random number - generator. The PRNG is part of the cryptographic processor functions - and uses triple-DES to generate secure random numbers like the - ANSI X9.17 standard. The PRNG is usable via the char device - /dev/prandom. diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 46c97058ebe..a3f67f8b542 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -516,7 +516,7 @@ static int __init aes_init(void) /* z9 109 and z9 BC/EC only support 128 bit key length */ if (keylen_flag == AES_KEYLEN_128) printk(KERN_INFO - "aes_s390: hardware acceleration only available for" + "aes_s390: hardware acceleration only available for " "128 bit keys\n"); ret = crypto_register_alg(&aes_alg); diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c index 8eb3a1aedc2..0cfefddd837 100644 --- a/arch/s390/crypto/prng.c +++ b/arch/s390/crypto/prng.c @@ -90,7 +90,7 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes, int ret = 0; int tmp; - /* nbytes can be arbitrary long, we spilt it into chunks */ + /* nbytes can be arbitrary length, we split it into chunks */ while (nbytes) { /* same as in extract_entropy_user in random.c */ if (need_resched()) { @@ -146,7 +146,7 @@ static ssize_t prng_read(struct file *file, char __user *ubuf, size_t nbytes, return ret; } -static struct file_operations prng_fops = { +static const struct file_operations prng_fops = { .owner = THIS_MODULE, .open = &prng_open, .release = NULL, diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 56cb71007cd..b3b650a93c7 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -31,7 +31,3 @@ S390_KEXEC_OBJS := machine_kexec.o crash.o S390_KEXEC_OBJS += $(if $(CONFIG_64BIT),relocate_kernel64.o,relocate_kernel.o) obj-$(CONFIG_KEXEC) += $(S390_KEXEC_OBJS) -# -# This is just to get the dependencies... -# -binfmt_elf32.o: $(TOPDIR)/fs/binfmt_elf.c diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 1b3af7dab81..9f7b73b180f 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -276,7 +276,7 @@ void __init startup_init(void) create_kernel_nss(); sort_main_extable(); setup_lowcore_early(); - sclp_readinfo_early(); + sclp_read_info_early(); sclp_facilities_detect(); memsize = sclp_memory_detect(); #ifndef CONFIG_64BIT diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index a87b1976d40..79dccd206a6 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -157,7 +157,7 @@ startup_continue: .long 0xb2b10000 # store facility list tm 0xc8,0x08 # check bit for clearing-by-ASCE bno 0f-.LPG1(%r13) - lhi %r1,2094 + lhi %r1,2048 lhi %r2,0 .long 0xb98e2001 oi 7(%r12),0x80 # set IDTE flag diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index b97694fa62e..db28cca81fe 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -2,7 +2,7 @@ * arch/s390/kernel/ipl.c * ipl/reipl/dump support for Linux on s390. * - * Copyright (C) IBM Corp. 2005,2006 + * Copyright IBM Corp. 2005,2007 * Author(s): Michael Holzheu <holzheu@de.ibm.com> * Heiko Carstens <heiko.carstens@de.ibm.com> * Volker Sameske <sameske@de.ibm.com> @@ -31,6 +31,43 @@ #define IPL_FCP_DUMP_STR "fcp_dump" #define IPL_NSS_STR "nss" +#define DUMP_CCW_STR "ccw" +#define DUMP_FCP_STR "fcp" +#define DUMP_NONE_STR "none" + +/* + * Four shutdown trigger types are supported: + * - panic + * - halt + * - power off + * - reipl + */ +#define ON_PANIC_STR "on_panic" +#define ON_HALT_STR "on_halt" +#define ON_POFF_STR "on_poff" +#define ON_REIPL_STR "on_reboot" + +struct shutdown_action; +struct shutdown_trigger { + char *name; + struct shutdown_action *action; +}; + +/* + * Five shutdown action types are supported: + */ +#define SHUTDOWN_ACTION_IPL_STR "ipl" +#define SHUTDOWN_ACTION_REIPL_STR "reipl" +#define SHUTDOWN_ACTION_DUMP_STR "dump" +#define SHUTDOWN_ACTION_VMCMD_STR "vmcmd" +#define SHUTDOWN_ACTION_STOP_STR "stop" + +struct shutdown_action { + char *name; + void (*fn) (struct shutdown_trigger *trigger); + int (*init) (void); +}; + static char *ipl_type_str(enum ipl_type type) { switch (type) { @@ -54,10 +91,6 @@ enum dump_type { DUMP_TYPE_FCP = 4, }; -#define DUMP_NONE_STR "none" -#define DUMP_CCW_STR "ccw" -#define DUMP_FCP_STR "fcp" - static char *dump_type_str(enum dump_type type) { switch (type) { @@ -99,30 +132,6 @@ enum dump_method { DUMP_METHOD_FCP_DIAG, }; -enum shutdown_action { - SHUTDOWN_REIPL, - SHUTDOWN_DUMP, - SHUTDOWN_STOP, -}; - -#define SHUTDOWN_REIPL_STR "reipl" -#define SHUTDOWN_DUMP_STR "dump" -#define SHUTDOWN_STOP_STR "stop" - -static char *shutdown_action_str(enum shutdown_action action) -{ - switch (action) { - case SHUTDOWN_REIPL: - return SHUTDOWN_REIPL_STR; - case SHUTDOWN_DUMP: - return SHUTDOWN_DUMP_STR; - case SHUTDOWN_STOP: - return SHUTDOWN_STOP_STR; - default: - return NULL; - } -} - static int diag308_set_works = 0; static int reipl_capabilities = IPL_TYPE_UNKNOWN; @@ -140,8 +149,6 @@ static enum dump_method dump_method = DUMP_METHOD_NONE; static struct ipl_parameter_block *dump_block_fcp; static struct ipl_parameter_block *dump_block_ccw; -static enum shutdown_action on_panic_action = SHUTDOWN_STOP; - static struct sclp_ipl_info sclp_ipl_info; int diag308(unsigned long subcode, void *addr) @@ -205,8 +212,8 @@ static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \ struct kobj_attribute *attr, \ const char *buf, size_t len) \ { \ - if (sscanf(buf, _fmt_in, _value) != 1) \ - return -EINVAL; \ + strncpy(_value, buf, sizeof(_value) - 1); \ + strstrip(_value); \ return len; \ } \ static struct kobj_attribute sys_##_prefix##_##_name##_attr = \ @@ -245,33 +252,6 @@ static __init enum ipl_type get_ipl_type(void) return IPL_TYPE_FCP; } -void __init setup_ipl_info(void) -{ - ipl_info.type = get_ipl_type(); - switch (ipl_info.type) { - case IPL_TYPE_CCW: - ipl_info.data.ccw.dev_id.devno = ipl_devno; - ipl_info.data.ccw.dev_id.ssid = 0; - break; - case IPL_TYPE_FCP: - case IPL_TYPE_FCP_DUMP: - ipl_info.data.fcp.dev_id.devno = - IPL_PARMBLOCK_START->ipl_info.fcp.devno; - ipl_info.data.fcp.dev_id.ssid = 0; - ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn; - ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun; - break; - case IPL_TYPE_NSS: - strncpy(ipl_info.data.nss.name, kernel_nss_name, - sizeof(ipl_info.data.nss.name)); - break; - case IPL_TYPE_UNKNOWN: - default: - /* We have no info to copy */ - break; - } -} - struct ipl_info ipl_info; EXPORT_SYMBOL_GPL(ipl_info); @@ -428,8 +408,74 @@ static struct attribute_group ipl_unknown_attr_group = { static struct kset *ipl_kset; +static int __init ipl_register_fcp_files(void) +{ + int rc; + + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_fcp_attr_group); + if (rc) + goto out; + rc = sysfs_create_bin_file(&ipl_kset->kobj, &ipl_parameter_attr); + if (rc) + goto out_ipl_parm; + rc = sysfs_create_bin_file(&ipl_kset->kobj, &ipl_scp_data_attr); + if (!rc) + goto out; + + sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr); + +out_ipl_parm: + sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group); +out: + return rc; +} + +static void ipl_run(struct shutdown_trigger *trigger) +{ + diag308(DIAG308_IPL, NULL); + if (MACHINE_IS_VM) + __cpcmd("IPL", NULL, 0, NULL); + else if (ipl_info.type == IPL_TYPE_CCW) + reipl_ccw_dev(&ipl_info.data.ccw.dev_id); +} + +static int ipl_init(void) +{ + int rc; + + ipl_kset = kset_create_and_add("ipl", NULL, firmware_kobj); + if (!ipl_kset) { + rc = -ENOMEM; + goto out; + } + switch (ipl_info.type) { + case IPL_TYPE_CCW: + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_ccw_attr_group); + break; + case IPL_TYPE_FCP: + case IPL_TYPE_FCP_DUMP: + rc = ipl_register_fcp_files(); + break; + case IPL_TYPE_NSS: + rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nss_attr_group); + break; + default: + rc = sysfs_create_group(&ipl_kset->kobj, + &ipl_unknown_attr_group); + break; + } +out: + if (rc) + panic("ipl_init failed: rc = %i\n", rc); + + return 0; +} + +static struct shutdown_action ipl_action = {SHUTDOWN_ACTION_IPL_STR, ipl_run, + ipl_init}; + /* - * reipl section + * reipl shutdown action: Reboot Linux on shutdown. */ /* FCP reipl device attributes */ @@ -549,7 +595,9 @@ static int reipl_set_type(enum ipl_type type) switch(type) { case IPL_TYPE_CCW: - if (MACHINE_IS_VM) + if (diag308_set_works) + reipl_method = REIPL_METHOD_CCW_DIAG; + else if (MACHINE_IS_VM) reipl_method = REIPL_METHOD_CCW_VM; else reipl_method = REIPL_METHOD_CCW_CIO; @@ -600,143 +648,11 @@ static ssize_t reipl_type_store(struct kobject *kobj, } static struct kobj_attribute reipl_type_attr = - __ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store); + __ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store); static struct kset *reipl_kset; -/* - * dump section - */ - -/* FCP dump device attributes */ - -DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n", - dump_block_fcp->ipl_info.fcp.wwpn); -DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n", - dump_block_fcp->ipl_info.fcp.lun); -DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n", - dump_block_fcp->ipl_info.fcp.bootprog); -DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n", - dump_block_fcp->ipl_info.fcp.br_lba); -DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", - dump_block_fcp->ipl_info.fcp.devno); - -static struct attribute *dump_fcp_attrs[] = { - &sys_dump_fcp_device_attr.attr, - &sys_dump_fcp_wwpn_attr.attr, - &sys_dump_fcp_lun_attr.attr, - &sys_dump_fcp_bootprog_attr.attr, - &sys_dump_fcp_br_lba_attr.attr, - NULL, -}; - -static struct attribute_group dump_fcp_attr_group = { - .name = IPL_FCP_STR, - .attrs = dump_fcp_attrs, -}; - -/* CCW dump device attributes */ - -DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n", - dump_block_ccw->ipl_info.ccw.devno); - -static struct attribute *dump_ccw_attrs[] = { - &sys_dump_ccw_device_attr.attr, - NULL, -}; - -static struct attribute_group dump_ccw_attr_group = { - .name = IPL_CCW_STR, - .attrs = dump_ccw_attrs, -}; - -/* dump type */ - -static int dump_set_type(enum dump_type type) -{ - if (!(dump_capabilities & type)) - return -EINVAL; - switch(type) { - case DUMP_TYPE_CCW: - if (MACHINE_IS_VM) - dump_method = DUMP_METHOD_CCW_VM; - else if (diag308_set_works) - dump_method = DUMP_METHOD_CCW_DIAG; - else - dump_method = DUMP_METHOD_CCW_CIO; - break; - case DUMP_TYPE_FCP: - dump_method = DUMP_METHOD_FCP_DIAG; - break; - default: - dump_method = DUMP_METHOD_NONE; - } - dump_type = type; - return 0; -} - -static ssize_t dump_type_show(struct kobject *kobj, - struct kobj_attribute *attr, char *page) -{ - return sprintf(page, "%s\n", dump_type_str(dump_type)); -} - -static ssize_t dump_type_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t len) -{ - int rc = -EINVAL; - - if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0) - rc = dump_set_type(DUMP_TYPE_NONE); - else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0) - rc = dump_set_type(DUMP_TYPE_CCW); - else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0) - rc = dump_set_type(DUMP_TYPE_FCP); - return (rc != 0) ? rc : len; -} - -static struct kobj_attribute dump_type_attr = - __ATTR(dump_type, 0644, dump_type_show, dump_type_store); - -static struct kset *dump_kset; - -/* - * Shutdown actions section - */ - -static struct kset *shutdown_actions_kset; - -/* on panic */ - -static ssize_t on_panic_show(struct kobject *kobj, - struct kobj_attribute *attr, char *page) -{ - return sprintf(page, "%s\n", shutdown_action_str(on_panic_action)); -} - -static ssize_t on_panic_store(struct kobject *kobj, - struct kobj_attribute *attr, - const char *buf, size_t len) -{ - if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0) - on_panic_action = SHUTDOWN_REIPL; - else if (strncmp(buf, SHUTDOWN_DUMP_STR, - strlen(SHUTDOWN_DUMP_STR)) == 0) - on_panic_action = SHUTDOWN_DUMP; - else if (strncmp(buf, SHUTDOWN_STOP_STR, - strlen(SHUTDOWN_STOP_STR)) == 0) - on_panic_action = SHUTDOWN_STOP; - else - return -EINVAL; - - return len; -} - -static struct kobj_attribute on_panic_attr = - __ATTR(on_panic, 0644, on_panic_show, on_panic_store); - -void do_reipl(void) +void reipl_run(struct shutdown_trigger *trigger) { struct ccw_dev_id devid; static char buf[100]; @@ -745,8 +661,6 @@ void do_reipl(void) switch (reipl_method) { case REIPL_METHOD_CCW_CIO: devid.devno = reipl_block_ccw->ipl_info.ccw.devno; - if (ipl_info.type == IPL_TYPE_CCW && devid.devno == ipl_devno) - diag308(DIAG308_IPL, NULL); devid.ssid = 0; reipl_ccw_dev(&devid); break; @@ -787,98 +701,6 @@ void do_reipl(void) default: break; } - signal_processor(smp_processor_id(), sigp_stop_and_store_status); -} - -static void do_dump(void) -{ - struct ccw_dev_id devid; - static char buf[100]; - - switch (dump_method) { - case DUMP_METHOD_CCW_CIO: - smp_send_stop(); - devid.devno = dump_block_ccw->ipl_info.ccw.devno; - devid.ssid = 0; - reipl_ccw_dev(&devid); - break; - case DUMP_METHOD_CCW_VM: - smp_send_stop(); - sprintf(buf, "STORE STATUS"); - __cpcmd(buf, NULL, 0, NULL); - sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno); - __cpcmd(buf, NULL, 0, NULL); - break; - case DUMP_METHOD_CCW_DIAG: - diag308(DIAG308_SET, dump_block_ccw); - diag308(DIAG308_DUMP, NULL); - break; - case DUMP_METHOD_FCP_DIAG: - diag308(DIAG308_SET, dump_block_fcp); - diag308(DIAG308_DUMP, NULL); - break; - case DUMP_METHOD_NONE: - default: - return; - } - printk(KERN_EMERG "Dump failed!\n"); -} - -/* init functions */ - -static int __init ipl_register_fcp_files(void) -{ - int rc; - - rc = sysfs_create_group(&ipl_kset->kobj, - &ipl_fcp_attr_group); - if (rc) - goto out; - rc = sysfs_create_bin_file(&ipl_kset->kobj, - &ipl_parameter_attr); - if (rc) - goto out_ipl_parm; - rc = sysfs_create_bin_file(&ipl_kset->kobj, - &ipl_scp_data_attr); - if (!rc) - goto out; - - sysfs_remove_bin_file(&ipl_kset->kobj, &ipl_parameter_attr); - -out_ipl_parm: - sysfs_remove_group(&ipl_kset->kobj, &ipl_fcp_attr_group); -out: - return rc; -} - -static int __init ipl_init(void) -{ - int rc; - - ipl_kset = kset_create_and_add("ipl", NULL, firmware_kobj); - if (!ipl_kset) - return -ENOMEM; - switch (ipl_info.type) { - case IPL_TYPE_CCW: - rc = sysfs_create_group(&ipl_kset->kobj, - &ipl_ccw_attr_group); - break; - case IPL_TYPE_FCP: - case IPL_TYPE_FCP_DUMP: - rc = ipl_register_fcp_files(); - break; - case IPL_TYPE_NSS: - rc = sysfs_create_group(&ipl_kset->kobj, - &ipl_nss_attr_group); - break; - default: - rc = sysfs_create_group(&ipl_kset->kobj, - &ipl_unknown_attr_group); - break; - } - if (rc) - kset_unregister(ipl_kset); - return rc; } static void __init reipl_probe(void) @@ -923,6 +745,7 @@ static int __init reipl_ccw_init(void) reipl_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION; reipl_block_ccw->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN; reipl_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW; + reipl_block_ccw->hdr.flags = DIAG308_FLAGS_LP_VALID; /* check if read scp info worked and set loadparm */ if (sclp_ipl_info.is_valid) memcpy(reipl_block_ccw->ipl_info.ccw.load_param, @@ -931,8 +754,7 @@ static int __init reipl_ccw_init(void) /* read scp info failed: set empty loadparm (EBCDIC blanks) */ memset(reipl_block_ccw->ipl_info.ccw.load_param, 0x40, LOADPARM_LEN); - /* FIXME: check for diag308_set_works when enabling diag ccw reipl */ - if (!MACHINE_IS_VM) + if (!MACHINE_IS_VM && !diag308_set_works) sys_reipl_ccw_loadparm_attr.attr.mode = S_IRUGO; if (ipl_info.type == IPL_TYPE_CCW) reipl_block_ccw->ipl_info.ccw.devno = ipl_devno; @@ -970,7 +792,7 @@ static int __init reipl_fcp_init(void) return 0; } -static int __init reipl_init(void) +static int reipl_init(void) { int rc; @@ -997,6 +819,140 @@ static int __init reipl_init(void) return 0; } +static struct shutdown_action reipl_action = {SHUTDOWN_ACTION_REIPL_STR, + reipl_run, reipl_init}; + +/* + * dump shutdown action: Dump Linux on shutdown. + */ + +/* FCP dump device attributes */ + +DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n", + dump_block_fcp->ipl_info.fcp.wwpn); +DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n", + dump_block_fcp->ipl_info.fcp.lun); +DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n", + dump_block_fcp->ipl_info.fcp.bootprog); +DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n", + dump_block_fcp->ipl_info.fcp.br_lba); +DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", + dump_block_fcp->ipl_info.fcp.devno); + +static struct attribute *dump_fcp_attrs[] = { + &sys_dump_fcp_device_attr.attr, + &sys_dump_fcp_wwpn_attr.attr, + &sys_dump_fcp_lun_attr.attr, + &sys_dump_fcp_bootprog_attr.attr, + &sys_dump_fcp_br_lba_attr.attr, + NULL, +}; + +static struct attribute_group dump_fcp_attr_group = { + .name = IPL_FCP_STR, + .attrs = dump_fcp_attrs, +}; + +/* CCW dump device attributes */ + +DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n", + dump_block_ccw->ipl_info.ccw.devno); + +static struct attribute *dump_ccw_attrs[] = { + &sys_dump_ccw_device_attr.attr, + NULL, +}; + +static struct attribute_group dump_ccw_attr_group = { + .name = IPL_CCW_STR, + .attrs = dump_ccw_attrs, +}; + +/* dump type */ + +static int dump_set_type(enum dump_type type) +{ + if (!(dump_capabilities & type)) + return -EINVAL; + switch (type) { + case DUMP_TYPE_CCW: + if (diag308_set_works) + dump_method = DUMP_METHOD_CCW_DIAG; + else if (MACHINE_IS_VM) + dump_method = DUMP_METHOD_CCW_VM; + else + dump_method = DUMP_METHOD_CCW_CIO; + break; + case DUMP_TYPE_FCP: + dump_method = DUMP_METHOD_FCP_DIAG; + break; + default: + dump_method = DUMP_METHOD_NONE; + } + dump_type = type; + return 0; +} + +static ssize_t dump_type_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%s\n", dump_type_str(dump_type)); +} + +static ssize_t dump_type_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + int rc = -EINVAL; + + if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_NONE); + else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_CCW); + else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0) + rc = dump_set_type(DUMP_TYPE_FCP); + return (rc != 0) ? rc : len; +} + +static struct kobj_attribute dump_type_attr = + __ATTR(dump_type, 0644, dump_type_show, dump_type_store); + +static struct kset *dump_kset; + +static void dump_run(struct shutdown_trigger *trigger) +{ + struct ccw_dev_id devid; + static char buf[100]; + + switch (dump_method) { + case DUMP_METHOD_CCW_CIO: + smp_send_stop(); + devid.devno = dump_block_ccw->ipl_info.ccw.devno; + devid.ssid = 0; + reipl_ccw_dev(&devid); + break; + case DUMP_METHOD_CCW_VM: + smp_send_stop(); + sprintf(buf, "STORE STATUS"); + __cpcmd(buf, NULL, 0, NULL); + sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno); + __cpcmd(buf, NULL, 0, NULL); + break; + case DUMP_METHOD_CCW_DIAG: + diag308(DIAG308_SET, dump_block_ccw); + diag308(DIAG308_DUMP, NULL); + break; + case DUMP_METHOD_FCP_DIAG: + diag308(DIAG308_SET, dump_block_fcp); + diag308(DIAG308_DUMP, NULL); + break; + case DUMP_METHOD_NONE: + default: + return; + } + printk(KERN_EMERG "Dump failed!\n"); +} + static int __init dump_ccw_init(void) { int rc; @@ -1042,31 +998,14 @@ static int __init dump_fcp_init(void) return 0; } -#define SHUTDOWN_ON_PANIC_PRIO 0 - -static int shutdown_on_panic_notify(struct notifier_block *self, - unsigned long event, void *data) -{ - if (on_panic_action == SHUTDOWN_DUMP) - do_dump(); - else if (on_panic_action == SHUTDOWN_REIPL) - do_reipl(); - return NOTIFY_OK; -} - -static struct notifier_block shutdown_on_panic_nb = { - .notifier_call = shutdown_on_panic_notify, - .priority = SHUTDOWN_ON_PANIC_PRIO -}; - -static int __init dump_init(void) +static int dump_init(void) { int rc; dump_kset = kset_create_and_add("dump", NULL, firmware_kobj); if (!dump_kset) return -ENOMEM; - rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr); + rc = sysfs_create_file(&dump_kset->kobj, &dump_type_attr.attr); if (rc) { kset_unregister(dump_kset); return rc; @@ -1081,47 +1020,381 @@ static int __init dump_init(void) return 0; } -static int __init shutdown_actions_init(void) +static struct shutdown_action dump_action = {SHUTDOWN_ACTION_DUMP_STR, + dump_run, dump_init}; + +/* + * vmcmd shutdown action: Trigger vm command on shutdown. + */ + +static char vmcmd_on_reboot[128]; +static char vmcmd_on_panic[128]; +static char vmcmd_on_halt[128]; +static char vmcmd_on_poff[128]; + +DEFINE_IPL_ATTR_STR_RW(vmcmd, on_reboot, "%s\n", "%s\n", vmcmd_on_reboot); +DEFINE_IPL_ATTR_STR_RW(vmcmd, on_panic, "%s\n", "%s\n", vmcmd_on_panic); +DEFINE_IPL_ATTR_STR_RW(vmcmd, on_halt, "%s\n", "%s\n", vmcmd_on_halt); +DEFINE_IPL_ATTR_STR_RW(vmcmd, on_poff, "%s\n", "%s\n", vmcmd_on_poff); + +static struct attribute *vmcmd_attrs[] = { + &sys_vmcmd_on_reboot_attr.attr, + &sys_vmcmd_on_panic_attr.attr, + &sys_vmcmd_on_halt_attr.attr, + &sys_vmcmd_on_poff_attr.attr, + NULL, +}; + +static struct attribute_group vmcmd_attr_group = { + .attrs = vmcmd_attrs, +}; + +static struct kset *vmcmd_kset; + +static void vmcmd_run(struct shutdown_trigger *trigger) +{ + char *cmd, *next_cmd; + + if (strcmp(trigger->name, ON_REIPL_STR) == 0) + cmd = vmcmd_on_reboot; + else if (strcmp(trigger->name, ON_PANIC_STR) == 0) + cmd = vmcmd_on_panic; + else if (strcmp(trigger->name, ON_HALT_STR) == 0) + cmd = vmcmd_on_halt; + else if (strcmp(trigger->name, ON_POFF_STR) == 0) + cmd = vmcmd_on_poff; + else + return; + + if (strlen(cmd) == 0) + return; + do { + next_cmd = strchr(cmd, '\n'); + if (next_cmd) { + next_cmd[0] = 0; + next_cmd += 1; + } + __cpcmd(cmd, NULL, 0, NULL); + cmd = next_cmd; + } while (cmd != NULL); +} + +static int vmcmd_init(void) { - int rc; + if (!MACHINE_IS_VM) + return -ENOTSUPP; + vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj); + if (!vmcmd_kset) + return -ENOMEM; + return sysfs_create_group(&vmcmd_kset->kobj, &vmcmd_attr_group); +} + +static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR, + vmcmd_run, vmcmd_init}; + +/* + * stop shutdown action: Stop Linux on shutdown. + */ + +static void stop_run(struct shutdown_trigger *trigger) +{ + if (strcmp(trigger->name, ON_PANIC_STR) == 0) + disabled_wait((unsigned long) __builtin_return_address(0)); + else { + signal_processor(smp_processor_id(), sigp_stop); + for (;;); + } +} + +static struct shutdown_action stop_action = {SHUTDOWN_ACTION_STOP_STR, + stop_run, NULL}; + +/* action list */ + +static struct shutdown_action *shutdown_actions_list[] = { + &ipl_action, &reipl_action, &dump_action, &vmcmd_action, &stop_action}; +#define SHUTDOWN_ACTIONS_COUNT (sizeof(shutdown_actions_list) / sizeof(void *)) + +/* + * Trigger section + */ + +static struct kset *shutdown_actions_kset; + +static int set_trigger(const char *buf, struct shutdown_trigger *trigger, + size_t len) +{ + int i; + for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) { + if (!shutdown_actions_list[i]) + continue; + if (strncmp(buf, shutdown_actions_list[i]->name, + strlen(shutdown_actions_list[i]->name)) == 0) { + trigger->action = shutdown_actions_list[i]; + return len; + } + } + return -EINVAL; +} + +/* on reipl */ + +static struct shutdown_trigger on_reboot_trigger = {ON_REIPL_STR, + &reipl_action}; + +static ssize_t on_reboot_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%s\n", on_reboot_trigger.action->name); +} + +static ssize_t on_reboot_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + return set_trigger(buf, &on_reboot_trigger, len); +} + +static struct kobj_attribute on_reboot_attr = + __ATTR(on_reboot, 0644, on_reboot_show, on_reboot_store); + +static void do_machine_restart(char *__unused) +{ + smp_send_stop(); + on_reboot_trigger.action->fn(&on_reboot_trigger); + reipl_run(NULL); +} +void (*_machine_restart)(char *command) = do_machine_restart; + +/* on panic */ + +static struct shutdown_trigger on_panic_trigger = {ON_PANIC_STR, &stop_action}; + +static ssize_t on_panic_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%s\n", on_panic_trigger.action->name); +} +static ssize_t on_panic_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + return set_trigger(buf, &on_panic_trigger, len); +} + +static struct kobj_attribute on_panic_attr = + __ATTR(on_panic, 0644, on_panic_show, on_panic_store); + +static void do_panic(void) +{ + on_panic_trigger.action->fn(&on_panic_trigger); + stop_run(&on_panic_trigger); +} + +/* on halt */ + +static struct shutdown_trigger on_halt_trigger = {ON_HALT_STR, &stop_action}; + +static ssize_t on_halt_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%s\n", on_halt_trigger.action->name); +} + +static ssize_t on_halt_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + return set_trigger(buf, &on_halt_trigger, len); +} + +static struct kobj_attribute on_halt_attr = + __ATTR(on_halt, 0644, on_halt_show, on_halt_store); + + +static void do_machine_halt(void) +{ + smp_send_stop(); + on_halt_trigger.action->fn(&on_halt_trigger); + stop_run(&on_halt_trigger); +} +void (*_machine_halt)(void) = do_machine_halt; + +/* on power off */ + +static struct shutdown_trigger on_poff_trigger = {ON_POFF_STR, &stop_action}; + +static ssize_t on_poff_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return sprintf(page, "%s\n", on_poff_trigger.action->name); +} + +static ssize_t on_poff_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + return set_trigger(buf, &on_poff_trigger, len); +} + +static struct kobj_attribute on_poff_attr = + __ATTR(on_poff, 0644, on_poff_show, on_poff_store); + + +static void do_machine_power_off(void) +{ + smp_send_stop(); + on_poff_trigger.action->fn(&on_poff_trigger); + stop_run(&on_poff_trigger); +} +void (*_machine_power_off)(void) = do_machine_power_off; + +static void __init shutdown_triggers_init(void) +{ shutdown_actions_kset = kset_create_and_add("shutdown_actions", NULL, firmware_kobj); if (!shutdown_actions_kset) - return -ENOMEM; - rc = sysfs_create_file(&shutdown_actions_kset->kobj, &on_panic_attr); - if (rc) { - kset_unregister(shutdown_actions_kset); - return rc; + goto fail; + if (sysfs_create_file(&shutdown_actions_kset->kobj, + &on_reboot_attr.attr)) + goto fail; + if (sysfs_create_file(&shutdown_actions_kset->kobj, + &on_panic_attr.attr)) + goto fail; + if (sysfs_create_file(&shutdown_actions_kset->kobj, + &on_halt_attr.attr)) + goto fail; + if (sysfs_create_file(&shutdown_actions_kset->kobj, + &on_poff_attr.attr)) + goto fail; + + return; +fail: + panic("shutdown_triggers_init failed\n"); +} + +static void __init shutdown_actions_init(void) +{ + int i; + + for (i = 0; i < SHUTDOWN_ACTIONS_COUNT; i++) { + if (!shutdown_actions_list[i]->init) + continue; + if (shutdown_actions_list[i]->init()) + shutdown_actions_list[i] = NULL; } - atomic_notifier_chain_register(&panic_notifier_list, - &shutdown_on_panic_nb); - return 0; } static int __init s390_ipl_init(void) { - int rc; - - sclp_get_ipl_info(&sclp_ipl_info); reipl_probe(); - rc = ipl_init(); - if (rc) - return rc; - rc = reipl_init(); - if (rc) - return rc; - rc = dump_init(); - if (rc) - return rc; - rc = shutdown_actions_init(); - if (rc) - return rc; + sclp_get_ipl_info(&sclp_ipl_info); + shutdown_actions_init(); + shutdown_triggers_init(); return 0; } __initcall(s390_ipl_init); +static void __init strncpy_skip_quote(char *dst, char *src, int n) +{ + int sx, dx; + + dx = 0; + for (sx = 0; src[sx] != 0; sx++) { + if (src[sx] == '"') + continue; + dst[dx++] = src[sx]; + if (dx >= n) + break; + } +} + +static int __init vmcmd_on_reboot_setup(char *str) +{ + if (!MACHINE_IS_VM) + return 1; + strncpy_skip_quote(vmcmd_on_reboot, str, 127); + vmcmd_on_reboot[127] = 0; + on_reboot_trigger.action = &vmcmd_action; + return 1; +} +__setup("vmreboot=", vmcmd_on_reboot_setup); + +static int __init vmcmd_on_panic_setup(char *str) +{ + if (!MACHINE_IS_VM) + return 1; + strncpy_skip_quote(vmcmd_on_panic, str, 127); + vmcmd_on_panic[127] = 0; + on_panic_trigger.action = &vmcmd_action; + return 1; +} +__setup("vmpanic=", vmcmd_on_panic_setup); + +static int __init vmcmd_on_halt_setup(char *str) +{ + if (!MACHINE_IS_VM) + return 1; + strncpy_skip_quote(vmcmd_on_halt, str, 127); + vmcmd_on_halt[127] = 0; + on_halt_trigger.action = &vmcmd_action; + return 1; +} +__setup("vmhalt=", vmcmd_on_halt_setup); + +static int __init vmcmd_on_poff_setup(char *str) +{ + if (!MACHINE_IS_VM) + return 1; + strncpy_skip_quote(vmcmd_on_poff, str, 127); + vmcmd_on_poff[127] = 0; + on_poff_trigger.action = &vmcmd_action; + return 1; +} +__setup("vmpoff=", vmcmd_on_poff_setup); + +static int on_panic_notify(struct notifier_block *self, + unsigned long event, void *data) +{ + do_panic(); + return NOTIFY_OK; +} + +static struct notifier_block on_panic_nb = { + .notifier_call = on_panic_notify, + .priority = 0, +}; + +void __init setup_ipl(void) +{ + ipl_info.type = get_ipl_type(); + switch (ipl_info.type) { + case IPL_TYPE_CCW: + ipl_info.data.ccw.dev_id.devno = ipl_devno; + ipl_info.data.ccw.dev_id.ssid = 0; + break; + case IPL_TYPE_FCP: + case IPL_TYPE_FCP_DUMP: + ipl_info.data.fcp.dev_id.devno = + IPL_PARMBLOCK_START->ipl_info.fcp.devno; + ipl_info.data.fcp.dev_id.ssid = 0; + ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn; + ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun; + break; + case IPL_TYPE_NSS: + strncpy(ipl_info.data.nss.name, kernel_nss_name, + sizeof(ipl_info.data.nss.name)); + break; + case IPL_TYPE_UNKNOWN: + default: + /* We have no info to copy */ + break; + } + atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb); +} + void __init ipl_save_parameters(void) { struct cio_iplinfo iplinfo; @@ -1202,3 +1475,4 @@ void s390_reset_system(void) do_reset_calls(); } + diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 29f7884b4ff..0e7aca03930 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -36,7 +36,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/notifier.h> - +#include <linux/utsname.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -182,13 +182,15 @@ void cpu_idle(void) void show_regs(struct pt_regs *regs) { - struct task_struct *tsk = current; - - printk("CPU: %d %s\n", task_thread_info(tsk)->cpu, print_tainted()); - printk("Process %s (pid: %d, task: %p, ksp: %p)\n", - current->comm, task_pid_nr(current), (void *) tsk, - (void *) tsk->thread.ksp); - + print_modules(); + printk("CPU: %d %s %s %.*s\n", + task_thread_info(current)->cpu, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); + printk("Process %s (pid: %d, task: %p, ksp: %p)\n", + current->comm, current->pid, current, + (void *) current->thread.ksp); show_registers(regs); /* Show stack backtrace if pt_regs is from kernel mode */ if (!(regs->psw.mask & PSW_MASK_PSTATE)) diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 1d81bf9488a..6e036bae987 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -86,13 +86,13 @@ FixPerRegisters(struct task_struct *task) per_info->control_regs.bits.storage_alt_space_ctl = 0; } -static void set_single_step(struct task_struct *task) +void user_enable_single_step(struct task_struct *task) { task->thread.per_info.single_step = 1; FixPerRegisters(task); } -static void clear_single_step(struct task_struct *task) +void user_disable_single_step(struct task_struct *task) { task->thread.per_info.single_step = 0; FixPerRegisters(task); @@ -107,7 +107,7 @@ void ptrace_disable(struct task_struct *child) { /* make sure the single step bit is not set. */ - clear_single_step(child); + user_disable_single_step(child); } #ifndef CONFIG_64BIT @@ -651,7 +651,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data) clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; /* make sure the single step bit is not set. */ - clear_single_step(child); + user_disable_single_step(child); wake_up_process(child); return 0; @@ -665,7 +665,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data) return 0; child->exit_code = SIGKILL; /* make sure the single step bit is not set. */ - clear_single_step(child); + user_disable_single_step(child); wake_up_process(child); return 0; @@ -675,10 +675,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data) return -EIO; clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; - if (data) - set_tsk_thread_flag(child, TIF_SINGLE_STEP); - else - set_single_step(child); + user_enable_single_step(child); /* give it a chance to run. */ wake_up_process(child); return 0; diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 577aa7dd660..766c783bd7a 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -126,75 +126,6 @@ void __cpuinit cpu_init(void) } /* - * VM halt and poweroff setup routines - */ -char vmhalt_cmd[128] = ""; -char vmpoff_cmd[128] = ""; -static char vmpanic_cmd[128] = ""; - -static void strncpy_skip_quote(char *dst, char *src, int n) -{ - int sx, dx; - - dx = 0; - for (sx = 0; src[sx] != 0; sx++) { - if (src[sx] == '"') continue; - dst[dx++] = src[sx]; - if (dx >= n) break; - } -} - -static int __init vmhalt_setup(char *str) -{ - strncpy_skip_quote(vmhalt_cmd, str, 127); - vmhalt_cmd[127] = 0; - return 1; -} - -__setup("vmhalt=", vmhalt_setup); - -static int __init vmpoff_setup(char *str) -{ - strncpy_skip_quote(vmpoff_cmd, str, 127); - vmpoff_cmd[127] = 0; - return 1; -} - -__setup("vmpoff=", vmpoff_setup); - -static int vmpanic_notify(struct notifier_block *self, unsigned long event, - void *data) -{ - if (MACHINE_IS_VM && strlen(vmpanic_cmd) > 0) - cpcmd(vmpanic_cmd, NULL, 0, NULL); - - return NOTIFY_OK; -} - -#define PANIC_PRI_VMPANIC 0 - -static struct notifier_block vmpanic_nb = { - .notifier_call = vmpanic_notify, - .priority = PANIC_PRI_VMPANIC -}; - -static int __init vmpanic_setup(char *str) -{ - static int register_done __initdata = 0; - - strncpy_skip_quote(vmpanic_cmd, str, 127); - vmpanic_cmd[127] = 0; - if (!register_done) { - register_done = 1; - atomic_notifier_chain_register(&panic_notifier_list, - &vmpanic_nb); - } - return 1; -} - -__setup("vmpanic=", vmpanic_setup); - -/* * condev= and conmode= setup parameter. */ @@ -308,38 +239,6 @@ static void __init setup_zfcpdump(unsigned int console_devno) static inline void setup_zfcpdump(unsigned int console_devno) {} #endif /* CONFIG_ZFCPDUMP */ -#ifdef CONFIG_SMP -void (*_machine_restart)(char *command) = machine_restart_smp; -void (*_machine_halt)(void) = machine_halt_smp; -void (*_machine_power_off)(void) = machine_power_off_smp; -#else -/* - * Reboot, halt and power_off routines for non SMP. - */ -static void do_machine_restart_nonsmp(char * __unused) -{ - do_reipl(); -} - -static void do_machine_halt_nonsmp(void) -{ - if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0) - __cpcmd(vmhalt_cmd, NULL, 0, NULL); - signal_processor(smp_processor_id(), sigp_stop_and_store_status); -} - -static void do_machine_power_off_nonsmp(void) -{ - if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0) - __cpcmd(vmpoff_cmd, NULL, 0, NULL); - signal_processor(smp_processor_id(), sigp_stop_and_store_status); -} - -void (*_machine_restart)(char *command) = do_machine_restart_nonsmp; -void (*_machine_halt)(void) = do_machine_halt_nonsmp; -void (*_machine_power_off)(void) = do_machine_power_off_nonsmp; -#endif - /* * Reboot, halt and power_off stubs. They just call _machine_restart, * _machine_halt or _machine_power_off. @@ -559,7 +458,9 @@ setup_resources(void) data_resource.start = (unsigned long) &_etext; data_resource.end = (unsigned long) &_edata - 1; - for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) { + for (i = 0; i < MEMORY_CHUNKS; i++) { + if (!memory_chunk[i].size) + continue; res = alloc_bootmem_low(sizeof(struct resource)); res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; switch (memory_chunk[i].type) { @@ -617,7 +518,7 @@ EXPORT_SYMBOL_GPL(real_memory_size); static void __init setup_memory_end(void) { unsigned long memory_size; - unsigned long max_mem, max_phys; + unsigned long max_mem; int i; #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE) @@ -625,10 +526,31 @@ static void __init setup_memory_end(void) memory_end = ZFCPDUMP_HSA_SIZE; #endif memory_size = 0; - max_phys = VMALLOC_END_INIT - VMALLOC_MIN_SIZE; memory_end &= PAGE_MASK; - max_mem = memory_end ? min(max_phys, memory_end) : max_phys; + max_mem = memory_end ? min(VMALLOC_START, memory_end) : VMALLOC_START; + memory_end = min(max_mem, memory_end); + + /* + * Make sure all chunks are MAX_ORDER aligned so we don't need the + * extra checks that HOLES_IN_ZONE would require. + */ + for (i = 0; i < MEMORY_CHUNKS; i++) { + unsigned long start, end; + struct mem_chunk *chunk; + unsigned long align; + + chunk = &memory_chunk[i]; + align = 1UL << (MAX_ORDER + PAGE_SHIFT - 1); + start = (chunk->addr + align - 1) & ~(align - 1); + end = (chunk->addr + chunk->size) & ~(align - 1); + if (start >= end) + memset(chunk, 0, sizeof(*chunk)); + else { + chunk->addr = start; + chunk->size = end - start; + } + } for (i = 0; i < MEMORY_CHUNKS; i++) { struct mem_chunk *chunk = &memory_chunk[i]; @@ -890,7 +812,7 @@ setup_arch(char **cmdline_p) parse_early_param(); - setup_ipl_info(); + setup_ipl(); setup_memory_end(); setup_addressing_mode(); setup_memory(); @@ -899,7 +821,6 @@ setup_arch(char **cmdline_p) cpu_init(); __cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr; - smp_setup_cpu_possible_map(); /* * Setup capabilities (ELF_HWCAP & ELF_PLATFORM). @@ -920,7 +841,7 @@ setup_arch(char **cmdline_p) void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo) { - printk("cpu %d " + printk(KERN_INFO "cpu %d " #ifdef CONFIG_SMP "phys_idx=%d " #endif @@ -996,7 +917,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos) static void c_stop(struct seq_file *m, void *v) { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index d264671c1b7..4449bf32cbf 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -471,6 +471,7 @@ void do_signal(struct pt_regs *regs) if (signr > 0) { /* Whee! Actually deliver the signal. */ + int ret; #ifdef CONFIG_COMPAT if (test_thread_flag(TIF_31BIT)) { extern int handle_signal32(unsigned long sig, @@ -478,15 +479,12 @@ void do_signal(struct pt_regs *regs) siginfo_t *info, sigset_t *oldset, struct pt_regs *regs); - if (handle_signal32( - signr, &ka, &info, oldset, regs) == 0) { - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); - } - return; + ret = handle_signal32(signr, &ka, &info, oldset, regs); } + else #endif - if (handle_signal(signr, &ka, &info, oldset, regs) == 0) { + ret = handle_signal(signr, &ka, &info, oldset, regs); + if (!ret) { /* * A signal was successfully delivered; the saved * sigmask will have been stored in the signal frame, @@ -495,6 +493,14 @@ void do_signal(struct pt_regs *regs) */ if (test_thread_flag(TIF_RESTORE_SIGMASK)) clear_thread_flag(TIF_RESTORE_SIGMASK); + + /* + * If we would have taken a single-step trap + * for a normal instruction, act like we took + * one for the handler setup. + */ + if (current->thread.per_info.single_step) + set_thread_flag(TIF_SINGLE_STEP); } return; } diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 264ea906db4..aa37fa15451 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -42,6 +42,7 @@ #include <asm/tlbflush.h> #include <asm/timer.h> #include <asm/lowcore.h> +#include <asm/sclp.h> #include <asm/cpu.h> /* @@ -53,11 +54,27 @@ EXPORT_SYMBOL(lowcore_ptr); cpumask_t cpu_online_map = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_online_map); -cpumask_t cpu_possible_map = CPU_MASK_NONE; +cpumask_t cpu_possible_map = CPU_MASK_ALL; EXPORT_SYMBOL(cpu_possible_map); static struct task_struct *current_set[NR_CPUS]; +static u8 smp_cpu_type; +static int smp_use_sigp_detection; + +enum s390_cpu_state { + CPU_STATE_STANDBY, + CPU_STATE_CONFIGURED, +}; + +#ifdef CONFIG_HOTPLUG_CPU +static DEFINE_MUTEX(smp_cpu_state_mutex); +#endif +static int smp_cpu_state[NR_CPUS]; + +static DEFINE_PER_CPU(struct cpu, cpu_devices); +DEFINE_PER_CPU(struct s390_idle_data, s390_idle); + static void smp_ext_bitcall(int, ec_bit_sig); /* @@ -193,6 +210,33 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info, } EXPORT_SYMBOL(smp_call_function_single); +/** + * smp_call_function_mask(): Run a function on a set of other CPUs. + * @mask: The set of cpus to run on. Must not include the current cpu. + * @func: The function to run. This must be fast and non-blocking. + * @info: An arbitrary pointer to pass to the function. + * @wait: If true, wait (atomically) until function has completed on other CPUs. + * + * Returns 0 on success, else a negative status code. + * + * If @wait is true, then returns once @func has returned; otherwise + * it returns just before the target cpu calls @func. + * + * You must not call this function with disabled interrupts or from a + * hardware interrupt handler or from a bottom half handler. + */ +int +smp_call_function_mask(cpumask_t mask, + void (*func)(void *), void *info, + int wait) +{ + preempt_disable(); + __smp_call_function_map(func, info, 0, wait, mask); + preempt_enable(); + return 0; +} +EXPORT_SYMBOL(smp_call_function_mask); + void smp_send_stop(void) { int cpu, rc; @@ -217,33 +261,6 @@ void smp_send_stop(void) } /* - * Reboot, halt and power_off routines for SMP. - */ -void machine_restart_smp(char *__unused) -{ - smp_send_stop(); - do_reipl(); -} - -void machine_halt_smp(void) -{ - smp_send_stop(); - if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0) - __cpcmd(vmhalt_cmd, NULL, 0, NULL); - signal_processor(smp_processor_id(), sigp_stop_and_store_status); - for (;;); -} - -void machine_power_off_smp(void) -{ - smp_send_stop(); - if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0) - __cpcmd(vmpoff_cmd, NULL, 0, NULL); - signal_processor(smp_processor_id(), sigp_stop_and_store_status); - for (;;); -} - -/* * This is the main routine where commands issued by other * cpus are handled. */ @@ -355,6 +372,13 @@ void smp_ctl_clear_bit(int cr, int bit) } EXPORT_SYMBOL(smp_ctl_clear_bit); +/* + * In early ipl state a temp. logically cpu number is needed, so the sigp + * functions can be used to sense other cpus. Since NR_CPUS is >= 2 on + * CONFIG_SMP and the ipl cpu is logical cpu 0, it must be 1. + */ +#define CPU_INIT_NO 1 + #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE) /* @@ -375,9 +399,10 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) "kernel was compiled with NR_CPUS=%i\n", cpu, NR_CPUS); return; } - zfcpdump_save_areas[cpu] = alloc_bootmem(sizeof(union save_area)); - __cpu_logical_map[1] = (__u16) phy_cpu; - while (signal_processor(1, sigp_stop_and_store_status) == sigp_busy) + zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL); + __cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu; + while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) == + sigp_busy) cpu_relax(); memcpy(zfcpdump_save_areas[cpu], (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE, @@ -397,32 +422,155 @@ static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { } #endif /* CONFIG_ZFCPDUMP || CONFIG_ZFCPDUMP_MODULE */ -/* - * Lets check how many CPUs we have. - */ -static unsigned int __init smp_count_cpus(void) +static int cpu_stopped(int cpu) { - unsigned int cpu, num_cpus; - __u16 boot_cpu_addr; + __u32 status; - /* - * cpu 0 is the boot cpu. See smp_prepare_boot_cpu. - */ + /* Check for stopped state */ + if (signal_processor_ps(&status, 0, cpu, sigp_sense) == + sigp_status_stored) { + if (status & 0x40) + return 1; + } + return 0; +} + +static int cpu_known(int cpu_id) +{ + int cpu; + + for_each_present_cpu(cpu) { + if (__cpu_logical_map[cpu] == cpu_id) + return 1; + } + return 0; +} + +static int smp_rescan_cpus_sigp(cpumask_t avail) +{ + int cpu_id, logical_cpu; + + logical_cpu = first_cpu(avail); + if (logical_cpu == NR_CPUS) + return 0; + for (cpu_id = 0; cpu_id <= 65535; cpu_id++) { + if (cpu_known(cpu_id)) + continue; + __cpu_logical_map[logical_cpu] = cpu_id; + if (!cpu_stopped(logical_cpu)) + continue; + cpu_set(logical_cpu, cpu_present_map); + smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED; + logical_cpu = next_cpu(logical_cpu, avail); + if (logical_cpu == NR_CPUS) + break; + } + return 0; +} + +static int smp_rescan_cpus_sclp(cpumask_t avail) +{ + struct sclp_cpu_info *info; + int cpu_id, logical_cpu, cpu; + int rc; + + logical_cpu = first_cpu(avail); + if (logical_cpu == NR_CPUS) + return 0; + info = kmalloc(sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + rc = sclp_get_cpu_info(info); + if (rc) + goto out; + for (cpu = 0; cpu < info->combined; cpu++) { + if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type) + continue; + cpu_id = info->cpu[cpu].address; + if (cpu_known(cpu_id)) + continue; + __cpu_logical_map[logical_cpu] = cpu_id; + cpu_set(logical_cpu, cpu_present_map); + if (cpu >= info->configured) + smp_cpu_state[logical_cpu] = CPU_STATE_STANDBY; + else + smp_cpu_state[logical_cpu] = CPU_STATE_CONFIGURED; + logical_cpu = next_cpu(logical_cpu, avail); + if (logical_cpu == NR_CPUS) + break; + } +out: + kfree(info); + return rc; +} + +static int smp_rescan_cpus(void) +{ + cpumask_t avail; + + cpus_xor(avail, cpu_possible_map, cpu_present_map); + if (smp_use_sigp_detection) + return smp_rescan_cpus_sigp(avail); + else + return smp_rescan_cpus_sclp(avail); +} + +static void __init smp_detect_cpus(void) +{ + unsigned int cpu, c_cpus, s_cpus; + struct sclp_cpu_info *info; + u16 boot_cpu_addr, cpu_addr; + + c_cpus = 1; + s_cpus = 0; boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr; - current_thread_info()->cpu = 0; - num_cpus = 1; - for (cpu = 0; cpu <= 65535; cpu++) { - if ((__u16) cpu == boot_cpu_addr) + info = kmalloc(sizeof(*info), GFP_KERNEL); + if (!info) + panic("smp_detect_cpus failed to allocate memory\n"); + /* Use sigp detection algorithm if sclp doesn't work. */ + if (sclp_get_cpu_info(info)) { + smp_use_sigp_detection = 1; + for (cpu = 0; cpu <= 65535; cpu++) { + if (cpu == boot_cpu_addr) + continue; + __cpu_logical_map[CPU_INIT_NO] = cpu; + if (!cpu_stopped(CPU_INIT_NO)) + continue; + smp_get_save_area(c_cpus, cpu); + c_cpus++; + } + goto out; + } + + if (info->has_cpu_type) { + for (cpu = 0; cpu < info->combined; cpu++) { + if (info->cpu[cpu].address == boot_cpu_addr) { + smp_cpu_type = info->cpu[cpu].type; + break; + } + } + } + + for (cpu = 0; cpu < info->combined; cpu++) { + if (info->has_cpu_type && info->cpu[cpu].type != smp_cpu_type) + continue; + cpu_addr = info->cpu[cpu].address; + if (cpu_addr == boot_cpu_addr) continue; - __cpu_logical_map[1] = (__u16) cpu; - if (signal_processor(1, sigp_sense) == sigp_not_operational) + __cpu_logical_map[CPU_INIT_NO] = cpu_addr; + if (!cpu_stopped(CPU_INIT_NO)) { + s_cpus++; continue; - smp_get_save_area(num_cpus, cpu); - num_cpus++; + } + smp_get_save_area(c_cpus, cpu_addr); + c_cpus++; } - printk("Detected %d CPU's\n", (int) num_cpus); - printk("Boot cpu address %2X\n", boot_cpu_addr); - return num_cpus; +out: + kfree(info); + printk(KERN_INFO "CPUs: %d configured, %d standby\n", c_cpus, s_cpus); + get_online_cpus(); + smp_rescan_cpus(); + put_online_cpus(); } /* @@ -453,8 +601,6 @@ int __cpuinit start_secondary(void *cpuvoid) return 0; } -DEFINE_PER_CPU(struct s390_idle_data, s390_idle); - static void __init smp_create_idle(unsigned int cpu) { struct task_struct *p; @@ -470,37 +616,82 @@ static void __init smp_create_idle(unsigned int cpu) spin_lock_init(&(&per_cpu(s390_idle, cpu))->lock); } -static int cpu_stopped(int cpu) +static int __cpuinit smp_alloc_lowcore(int cpu) { - __u32 status; + unsigned long async_stack, panic_stack; + struct _lowcore *lowcore; + int lc_order; + + lc_order = sizeof(long) == 8 ? 1 : 0; + lowcore = (void *) __get_free_pages(GFP_KERNEL | GFP_DMA, lc_order); + if (!lowcore) + return -ENOMEM; + async_stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); + if (!async_stack) + goto out_async_stack; + panic_stack = __get_free_page(GFP_KERNEL); + if (!panic_stack) + goto out_panic_stack; + + *lowcore = S390_lowcore; + lowcore->async_stack = async_stack + ASYNC_SIZE; + lowcore->panic_stack = panic_stack + PAGE_SIZE; - /* Check for stopped state */ - if (signal_processor_ps(&status, 0, cpu, sigp_sense) == - sigp_status_stored) { - if (status & 0x40) - return 1; +#ifndef CONFIG_64BIT + if (MACHINE_HAS_IEEE) { + unsigned long save_area; + + save_area = get_zeroed_page(GFP_KERNEL); + if (!save_area) + goto out_save_area; + lowcore->extended_save_area_addr = (u32) save_area; } +#endif + lowcore_ptr[cpu] = lowcore; return 0; + +#ifndef CONFIG_64BIT +out_save_area: + free_page(panic_stack); +#endif +out_panic_stack: + free_pages(async_stack, ASYNC_ORDER); +out_async_stack: + free_pages((unsigned long) lowcore, lc_order); + return -ENOMEM; } -/* Upping and downing of CPUs */ +#ifdef CONFIG_HOTPLUG_CPU +static void smp_free_lowcore(int cpu) +{ + struct _lowcore *lowcore; + int lc_order; + + lc_order = sizeof(long) == 8 ? 1 : 0; + lowcore = lowcore_ptr[cpu]; +#ifndef CONFIG_64BIT + if (MACHINE_HAS_IEEE) + free_page((unsigned long) lowcore->extended_save_area_addr); +#endif + free_page(lowcore->panic_stack - PAGE_SIZE); + free_pages(lowcore->async_stack - ASYNC_SIZE, ASYNC_ORDER); + free_pages((unsigned long) lowcore, lc_order); + lowcore_ptr[cpu] = NULL; +} +#endif /* CONFIG_HOTPLUG_CPU */ -int __cpu_up(unsigned int cpu) +/* Upping and downing of CPUs */ +int __cpuinit __cpu_up(unsigned int cpu) { struct task_struct *idle; struct _lowcore *cpu_lowcore; struct stack_frame *sf; sigp_ccode ccode; - int curr_cpu; - for (curr_cpu = 0; curr_cpu <= 65535; curr_cpu++) { - __cpu_logical_map[cpu] = (__u16) curr_cpu; - if (cpu_stopped(cpu)) - break; - } - - if (!cpu_stopped(cpu)) - return -ENODEV; + if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED) + return -EIO; + if (smp_alloc_lowcore(cpu)) + return -ENOMEM; ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]), cpu, sigp_set_prefix); @@ -515,6 +706,7 @@ int __cpu_up(unsigned int cpu) cpu_lowcore = lowcore_ptr[cpu]; cpu_lowcore->kernel_stack = (unsigned long) task_stack_page(idle) + THREAD_SIZE; + cpu_lowcore->thread_info = (unsigned long) task_thread_info(idle); sf = (struct stack_frame *) (cpu_lowcore->kernel_stack - sizeof(struct pt_regs) - sizeof(struct stack_frame)); @@ -528,6 +720,8 @@ int __cpu_up(unsigned int cpu) cpu_lowcore->percpu_offset = __per_cpu_offset[cpu]; cpu_lowcore->current_task = (unsigned long) idle; cpu_lowcore->cpu_data.cpu_nr = cpu; + cpu_lowcore->softirq_pending = 0; + cpu_lowcore->ext_call_fast = 0; eieio(); while (signal_processor(cpu, sigp_restart) == sigp_busy) @@ -538,44 +732,20 @@ int __cpu_up(unsigned int cpu) return 0; } -static unsigned int __initdata additional_cpus; -static unsigned int __initdata possible_cpus; - -void __init smp_setup_cpu_possible_map(void) +static int __init setup_possible_cpus(char *s) { - unsigned int phy_cpus, pos_cpus, cpu; - - phy_cpus = smp_count_cpus(); - pos_cpus = min(phy_cpus + additional_cpus, (unsigned int) NR_CPUS); - - if (possible_cpus) - pos_cpus = min(possible_cpus, (unsigned int) NR_CPUS); + int pcpus, cpu; - for (cpu = 0; cpu < pos_cpus; cpu++) + pcpus = simple_strtoul(s, NULL, 0); + cpu_possible_map = cpumask_of_cpu(0); + for (cpu = 1; cpu < pcpus && cpu < NR_CPUS; cpu++) cpu_set(cpu, cpu_possible_map); - - phy_cpus = min(phy_cpus, pos_cpus); - - for (cpu = 0; cpu < phy_cpus; cpu++) - cpu_set(cpu, cpu_present_map); -} - -#ifdef CONFIG_HOTPLUG_CPU - -static int __init setup_additional_cpus(char *s) -{ - additional_cpus = simple_strtoul(s, NULL, 0); - return 0; -} -early_param("additional_cpus", setup_additional_cpus); - -static int __init setup_possible_cpus(char *s) -{ - possible_cpus = simple_strtoul(s, NULL, 0); return 0; } early_param("possible_cpus", setup_possible_cpus); +#ifdef CONFIG_HOTPLUG_CPU + int __cpu_disable(void) { struct ec_creg_mask_parms cr_parms; @@ -612,7 +782,8 @@ void __cpu_die(unsigned int cpu) /* Wait until target cpu is down */ while (!smp_cpu_not_running(cpu)) cpu_relax(); - printk("Processor %d spun down\n", cpu); + smp_free_lowcore(cpu); + printk(KERN_INFO "Processor %d spun down\n", cpu); } void cpu_die(void) @@ -625,49 +796,19 @@ void cpu_die(void) #endif /* CONFIG_HOTPLUG_CPU */ -/* - * Cycle through the processors and setup structures. - */ - void __init smp_prepare_cpus(unsigned int max_cpus) { - unsigned long stack; unsigned int cpu; - int i; + + smp_detect_cpus(); /* request the 0x1201 emergency signal external interrupt */ if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0) panic("Couldn't request external interrupt 0x1201"); memset(lowcore_ptr, 0, sizeof(lowcore_ptr)); - /* - * Initialize prefix pages and stacks for all possible cpus - */ print_cpu_info(&S390_lowcore.cpu_data); + smp_alloc_lowcore(smp_processor_id()); - for_each_possible_cpu(i) { - lowcore_ptr[i] = (struct _lowcore *) - __get_free_pages(GFP_KERNEL | GFP_DMA, - sizeof(void*) == 8 ? 1 : 0); - stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER); - if (!lowcore_ptr[i] || !stack) - panic("smp_boot_cpus failed to allocate memory\n"); - - *(lowcore_ptr[i]) = S390_lowcore; - lowcore_ptr[i]->async_stack = stack + ASYNC_SIZE; - stack = __get_free_pages(GFP_KERNEL, 0); - if (!stack) - panic("smp_boot_cpus failed to allocate memory\n"); - lowcore_ptr[i]->panic_stack = stack + PAGE_SIZE; -#ifndef CONFIG_64BIT - if (MACHINE_HAS_IEEE) { - lowcore_ptr[i]->extended_save_area_addr = - (__u32) __get_free_pages(GFP_KERNEL, 0); - if (!lowcore_ptr[i]->extended_save_area_addr) - panic("smp_boot_cpus failed to " - "allocate memory\n"); - } -#endif - } #ifndef CONFIG_64BIT if (MACHINE_HAS_IEEE) ctl_set_bit(14, 29); /* enable extended save area */ @@ -683,15 +824,17 @@ void __init smp_prepare_boot_cpu(void) { BUG_ON(smp_processor_id() != 0); + current_thread_info()->cpu = 0; + cpu_set(0, cpu_present_map); cpu_set(0, cpu_online_map); S390_lowcore.percpu_offset = __per_cpu_offset[0]; current_set[0] = current; + smp_cpu_state[0] = CPU_STATE_CONFIGURED; spin_lock_init(&(&__get_cpu_var(s390_idle))->lock); } void __init smp_cpus_done(unsigned int max_cpus) { - cpu_present_map = cpu_possible_map; } /* @@ -705,7 +848,79 @@ int setup_profiling_timer(unsigned int multiplier) return 0; } -static DEFINE_PER_CPU(struct cpu, cpu_devices); +#ifdef CONFIG_HOTPLUG_CPU +static ssize_t cpu_configure_show(struct sys_device *dev, char *buf) +{ + ssize_t count; + + mutex_lock(&smp_cpu_state_mutex); + count = sprintf(buf, "%d\n", smp_cpu_state[dev->id]); + mutex_unlock(&smp_cpu_state_mutex); + return count; +} + +static ssize_t cpu_configure_store(struct sys_device *dev, const char *buf, + size_t count) +{ + int cpu = dev->id; + int val, rc; + char delim; + + if (sscanf(buf, "%d %c", &val, &delim) != 1) + return -EINVAL; + if (val != 0 && val != 1) + return -EINVAL; + + mutex_lock(&smp_cpu_state_mutex); + get_online_cpus(); + rc = -EBUSY; + if (cpu_online(cpu)) + goto out; + rc = 0; + switch (val) { + case 0: + if (smp_cpu_state[cpu] == CPU_STATE_CONFIGURED) { + rc = sclp_cpu_deconfigure(__cpu_logical_map[cpu]); + if (!rc) + smp_cpu_state[cpu] = CPU_STATE_STANDBY; + } + break; + case 1: + if (smp_cpu_state[cpu] == CPU_STATE_STANDBY) { + rc = sclp_cpu_configure(__cpu_logical_map[cpu]); + if (!rc) + smp_cpu_state[cpu] = CPU_STATE_CONFIGURED; + } + break; + default: + break; + } +out: + put_online_cpus(); + mutex_unlock(&smp_cpu_state_mutex); + return rc ? rc : count; +} +static SYSDEV_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store); +#endif /* CONFIG_HOTPLUG_CPU */ + +static ssize_t show_cpu_address(struct sys_device *dev, char *buf) +{ + return sprintf(buf, "%d\n", __cpu_logical_map[dev->id]); +} +static SYSDEV_ATTR(address, 0444, show_cpu_address, NULL); + + +static struct attribute *cpu_common_attrs[] = { +#ifdef CONFIG_HOTPLUG_CPU + &attr_configure.attr, +#endif + &attr_address.attr, + NULL, +}; + +static struct attribute_group cpu_common_attr_group = { + .attrs = cpu_common_attrs, +}; static ssize_t show_capability(struct sys_device *dev, char *buf) { @@ -750,15 +965,15 @@ static ssize_t show_idle_time(struct sys_device *dev, char *buf) } static SYSDEV_ATTR(idle_time_us, 0444, show_idle_time, NULL); -static struct attribute *cpu_attrs[] = { +static struct attribute *cpu_online_attrs[] = { &attr_capability.attr, &attr_idle_count.attr, &attr_idle_time_us.attr, NULL, }; -static struct attribute_group cpu_attr_group = { - .attrs = cpu_attrs, +static struct attribute_group cpu_online_attr_group = { + .attrs = cpu_online_attrs, }; static int __cpuinit smp_cpu_notify(struct notifier_block *self, @@ -778,12 +993,12 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self, idle->idle_time = 0; idle->idle_count = 0; spin_unlock_irq(&idle->lock); - if (sysfs_create_group(&s->kobj, &cpu_attr_group)) + if (sysfs_create_group(&s->kobj, &cpu_online_attr_group)) return NOTIFY_BAD; break; case CPU_DEAD: case CPU_DEAD_FROZEN: - sysfs_remove_group(&s->kobj, &cpu_attr_group); + sysfs_remove_group(&s->kobj, &cpu_online_attr_group); break; } return NOTIFY_OK; @@ -793,6 +1008,62 @@ static struct notifier_block __cpuinitdata smp_cpu_nb = { .notifier_call = smp_cpu_notify, }; +static int smp_add_present_cpu(int cpu) +{ + struct cpu *c = &per_cpu(cpu_devices, cpu); + struct sys_device *s = &c->sysdev; + int rc; + + c->hotpluggable = 1; + rc = register_cpu(c, cpu); + if (rc) + goto out; + rc = sysfs_create_group(&s->kobj, &cpu_common_attr_group); + if (rc) + goto out_cpu; + if (!cpu_online(cpu)) + goto out; + rc = sysfs_create_group(&s->kobj, &cpu_online_attr_group); + if (!rc) + return 0; + sysfs_remove_group(&s->kobj, &cpu_common_attr_group); +out_cpu: +#ifdef CONFIG_HOTPLUG_CPU + unregister_cpu(c); +#endif +out: + return rc; +} + +#ifdef CONFIG_HOTPLUG_CPU +static ssize_t rescan_store(struct sys_device *dev, const char *buf, + size_t count) +{ + cpumask_t newcpus; + int cpu; + int rc; + + mutex_lock(&smp_cpu_state_mutex); + get_online_cpus(); + newcpus = cpu_present_map; + rc = smp_rescan_cpus(); + if (rc) + goto out; + cpus_andnot(newcpus, cpu_present_map, newcpus); + for_each_cpu_mask(cpu, newcpus) { + rc = smp_add_present_cpu(cpu); + if (rc) + cpu_clear(cpu, cpu_present_map); + } + rc = 0; +out: + put_online_cpus(); + mutex_unlock(&smp_cpu_state_mutex); + return rc ? rc : count; +} +static SYSDEV_ATTR(rescan, 0200, NULL, rescan_store); +#endif /* CONFIG_HOTPLUG_CPU */ + static int __init topology_init(void) { int cpu; @@ -800,16 +1071,14 @@ static int __init topology_init(void) register_cpu_notifier(&smp_cpu_nb); - for_each_possible_cpu(cpu) { - struct cpu *c = &per_cpu(cpu_devices, cpu); - struct sys_device *s = &c->sysdev; - - c->hotpluggable = 1; - register_cpu(c, cpu); - if (!cpu_online(cpu)) - continue; - s = &c->sysdev; - rc = sysfs_create_group(&s->kobj, &cpu_attr_group); +#ifdef CONFIG_HOTPLUG_CPU + rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj, + &attr_rescan.attr); + if (rc) + return rc; +#endif + for_each_present_cpu(cpu) { + rc = smp_add_present_cpu(cpu); if (rc) return rc; } diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 8ed16a83fba..52b8342c6bf 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -31,6 +31,7 @@ #include <linux/reboot.h> #include <linux/kprobes.h> #include <linux/bug.h> +#include <linux/utsname.h> #include <asm/system.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -168,9 +169,16 @@ void show_stack(struct task_struct *task, unsigned long *sp) */ void dump_stack(void) { + printk("CPU: %d %s %s %.*s\n", + task_thread_info(current)->cpu, print_tainted(), + init_utsname()->release, + (int)strcspn(init_utsname()->version, " "), + init_utsname()->version); + printk("Process %s (pid: %d, task: %p, ksp: %p)\n", + current->comm, current->pid, current, + (void *) current->thread.ksp); show_stack(NULL, NULL); } - EXPORT_SYMBOL(dump_stack); static inline int mask_bits(struct pt_regs *regs, unsigned long bits) @@ -258,8 +266,14 @@ void die(const char * str, struct pt_regs * regs, long err) console_verbose(); spin_lock_irq(&die_lock); bust_spinlocks(1); - printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); - print_modules(); + printk("%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter); +#ifdef CONFIG_PREEMPT + printk("PREEMPT "); +#endif +#ifdef CONFIG_SMP + printk("SMP"); +#endif + printk("\n"); notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV); show_regs(regs); bust_spinlocks(0); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 849120e3e28..93615919934 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -17,6 +17,12 @@ ENTRY(_start) jiffies = jiffies_64; #endif +PHDRS { + text PT_LOAD FLAGS(5); /* R_E */ + data PT_LOAD FLAGS(7); /* RWE */ + note PT_NOTE FLAGS(0); /* ___ */ +} + SECTIONS { . = 0x00000000; @@ -33,6 +39,9 @@ SECTIONS _etext = .; /* End of text section */ + NOTES :text :note + BUG_TABLE :text + RODATA #ifdef CONFIG_SHARED_KERNEL @@ -49,9 +58,6 @@ SECTIONS __stop___ex_table = .; } - NOTES - BUG_TABLE - .data : { /* Data */ DATA_DATA CONSTRUCTORS diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c index 8d76403fcf8..e41f4008afc 100644 --- a/arch/s390/lib/spinlock.c +++ b/arch/s390/lib/spinlock.c @@ -39,7 +39,7 @@ static inline void _raw_yield_cpu(int cpu) _raw_yield(); } -void _raw_spin_lock_wait(raw_spinlock_t *lp, unsigned int pc) +void _raw_spin_lock_wait(raw_spinlock_t *lp) { int count = spin_retry; unsigned int cpu = ~smp_processor_id(); @@ -53,15 +53,36 @@ void _raw_spin_lock_wait(raw_spinlock_t *lp, unsigned int pc) } if (__raw_spin_is_locked(lp)) continue; - if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) { - lp->owner_pc = pc; + if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) return; - } } } EXPORT_SYMBOL(_raw_spin_lock_wait); -int _raw_spin_trylock_retry(raw_spinlock_t *lp, unsigned int pc) +void _raw_spin_lock_wait_flags(raw_spinlock_t *lp, unsigned long flags) +{ + int count = spin_retry; + unsigned int cpu = ~smp_processor_id(); + + local_irq_restore(flags); + while (1) { + if (count-- <= 0) { + unsigned int owner = lp->owner_cpu; + if (owner != 0) + _raw_yield_cpu(~owner); + count = spin_retry; + } + if (__raw_spin_is_locked(lp)) + continue; + local_irq_disable(); + if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) + return; + local_irq_restore(flags); + } +} +EXPORT_SYMBOL(_raw_spin_lock_wait_flags); + +int _raw_spin_trylock_retry(raw_spinlock_t *lp) { unsigned int cpu = ~smp_processor_id(); int count; @@ -69,10 +90,8 @@ int _raw_spin_trylock_retry(raw_spinlock_t *lp, unsigned int pc) for (count = spin_retry; count > 0; count--) { if (__raw_spin_is_locked(lp)) continue; - if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) { - lp->owner_pc = pc; + if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0) return 1; - } } return 0; } diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c index 394980b05e6..880b0ebf894 100644 --- a/arch/s390/mm/extmem.c +++ b/arch/s390/mm/extmem.c @@ -83,7 +83,7 @@ struct dcss_segment { }; static DEFINE_MUTEX(dcss_lock); -static struct list_head dcss_list = LIST_HEAD_INIT(dcss_list); +static LIST_HEAD(dcss_list); static char *segtype_string[] = { "SW", "EW", "SR", "ER", "SN", "EN", "SC", "EW/EN-MIXED" }; diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index fb9c5a85aa5..79d13a166a3 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -15,10 +15,6 @@ #include <asm/setup.h> #include <asm/tlbflush.h> -unsigned long vmalloc_end; -EXPORT_SYMBOL(vmalloc_end); - -static struct page *vmem_map; static DEFINE_MUTEX(vmem_mutex); struct memory_segment { @@ -188,8 +184,8 @@ static int vmem_add_mem_map(unsigned long start, unsigned long size) pte_t pte; int ret = -ENOMEM; - map_start = vmem_map + PFN_DOWN(start); - map_end = vmem_map + PFN_DOWN(start + size); + map_start = VMEM_MAP + PFN_DOWN(start); + map_end = VMEM_MAP + PFN_DOWN(start + size); start_addr = (unsigned long) map_start & PAGE_MASK; end_addr = PFN_ALIGN((unsigned long) map_end); @@ -240,10 +236,10 @@ static int vmem_add_mem(unsigned long start, unsigned long size) { int ret; - ret = vmem_add_range(start, size); + ret = vmem_add_mem_map(start, size); if (ret) return ret; - return vmem_add_mem_map(start, size); + return vmem_add_range(start, size); } /* @@ -254,7 +250,7 @@ static int insert_memory_segment(struct memory_segment *seg) { struct memory_segment *tmp; - if (PFN_DOWN(seg->start + seg->size) > max_pfn || + if (seg->start + seg->size >= VMALLOC_START || seg->start + seg->size < seg->start) return -ERANGE; @@ -357,17 +353,15 @@ out: /* * map whole physical memory to virtual memory (identity mapping) + * we reserve enough space in the vmalloc area for vmemmap to hotplug + * additional memory segments. */ void __init vmem_map_init(void) { - unsigned long map_size; int i; - map_size = ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) * sizeof(struct page); - vmalloc_end = PFN_ALIGN(VMALLOC_END_INIT) - PFN_ALIGN(map_size); - vmem_map = (struct page *) vmalloc_end; - NODE_DATA(0)->node_mem_map = vmem_map; - + BUILD_BUG_ON((unsigned long)VMEM_MAP + VMEM_MAP_SIZE > VMEM_MAP_MAX); + NODE_DATA(0)->node_mem_map = VMEM_MAP; for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) vmem_add_mem(memory_chunk[i].addr, memory_chunk[i].size); } @@ -382,7 +376,7 @@ static int __init vmem_convert_memory_chunk(void) int i; mutex_lock(&vmem_mutex); - for (i = 0; i < MEMORY_CHUNKS && memory_chunk[i].size > 0; i++) { + for (i = 0; i < MEMORY_CHUNKS; i++) { if (!memory_chunk[i].size) continue; seg = kzalloc(sizeof(*seg), GFP_KERNEL); diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 8a70a9edabd..6b658d84d52 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -48,8 +48,6 @@ config CRYPTO_DEV_PADLOCK_SHA If unsure say M. The compiled module will be called padlock-sha.ko -source "arch/s390/crypto/Kconfig" - config CRYPTO_DEV_GEODE tristate "Support for the Geode LX AES engine" depends on X86_32 && PCI @@ -83,6 +81,67 @@ config ZCRYPT_MONOLITHIC that contains all parts of the crypto device driver (ap bus, request router and all the card drivers). +config CRYPTO_SHA1_S390 + tristate "SHA1 digest algorithm" + depends on S390 + select CRYPTO_ALGAPI + help + This is the s390 hardware accelerated implementation of the + SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). + +config CRYPTO_SHA256_S390 + tristate "SHA256 digest algorithm" + depends on S390 + select CRYPTO_ALGAPI + help + This is the s390 hardware accelerated implementation of the + SHA256 secure hash standard (DFIPS 180-2). + + This version of SHA implements a 256 bit hash with 128 bits of + security against collision attacks. + +config CRYPTO_DES_S390 + tristate "DES and Triple DES cipher algorithms" + depends on S390 + select CRYPTO_ALGAPI + select CRYPTO_BLKCIPHER + help + This us the s390 hardware accelerated implementation of the + DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). + +config CRYPTO_AES_S390 + tristate "AES cipher algorithms" + depends on S390 + select CRYPTO_ALGAPI + select CRYPTO_BLKCIPHER + help + This is the s390 hardware accelerated implementation of the + AES cipher algorithms (FIPS-197). AES uses the Rijndael + algorithm. + + Rijndael appears to be consistently a very good performer in + both hardware and software across a wide range of computing + environments regardless of its use in feedback or non-feedback + modes. Its key setup time is excellent, and its key agility is + good. Rijndael's very low memory requirements make it very well + suited for restricted-space environments, in which it also + demonstrates excellent performance. Rijndael's operations are + among the easiest to defend against power and timing attacks. + + On s390 the System z9-109 currently only supports the key size + of 128 bit. + +config S390_PRNG + tristate "Pseudo random number generator device driver" + depends on S390 + default "m" + help + Select this option if you want to use the s390 pseudo random number + generator. The PRNG is part of the cryptographic processor functions + and uses triple-DES to generate secure random numbers like the + ANSI X9.17 standard. The PRNG is usable via the char device + /dev/prandom. + config CRYPTO_DEV_HIFN_795X tristate "Driver HIFN 795x crypto accelerator chips" select CRYPTO_DES diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index a37cb6b8593..35812823787 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -1,7 +1,7 @@ -/* ------------------------------------------------------------------------- */ -/* i2c-algo-bit.c i2c driver algorithms for bit-shift adapters */ -/* ------------------------------------------------------------------------- */ -/* Copyright (C) 1995-2000 Simon G. Vogl +/* ------------------------------------------------------------------------- + * i2c-algo-bit.c i2c driver algorithms for bit-shift adapters + * ------------------------------------------------------------------------- + * Copyright (C) 1995-2000 Simon G. Vogl This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -15,8 +15,8 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* ------------------------------------------------------------------------- */ + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * ------------------------------------------------------------------------- */ /* With some changes from Frodo Looijaard <frodol@dds.nl>, Kyösti Mälkki <kmalkki@cc.hut.fi> and Jean Delvare <khali@linux-fr.org> */ @@ -60,26 +60,26 @@ MODULE_PARM_DESC(i2c_debug, /* --- setting states on the bus with the right timing: --------------- */ -#define setsda(adap,val) adap->setsda(adap->data, val) -#define setscl(adap,val) adap->setscl(adap->data, val) -#define getsda(adap) adap->getsda(adap->data) -#define getscl(adap) adap->getscl(adap->data) +#define setsda(adap, val) adap->setsda(adap->data, val) +#define setscl(adap, val) adap->setscl(adap->data, val) +#define getsda(adap) adap->getsda(adap->data) +#define getscl(adap) adap->getscl(adap->data) static inline void sdalo(struct i2c_algo_bit_data *adap) { - setsda(adap,0); + setsda(adap, 0); udelay((adap->udelay + 1) / 2); } static inline void sdahi(struct i2c_algo_bit_data *adap) { - setsda(adap,1); + setsda(adap, 1); udelay((adap->udelay + 1) / 2); } static inline void scllo(struct i2c_algo_bit_data *adap) { - setscl(adap,0); + setscl(adap, 0); udelay(adap->udelay / 2); } @@ -91,22 +91,21 @@ static int sclhi(struct i2c_algo_bit_data *adap) { unsigned long start; - setscl(adap,1); + setscl(adap, 1); /* Not all adapters have scl sense line... */ if (!adap->getscl) goto done; - start=jiffies; - while (! getscl(adap) ) { - /* the hw knows how to read the clock line, - * so we wait until it actually gets high. - * This is safer as some chips may hold it low - * while they are processing data internally. - */ - if (time_after_eq(jiffies, start+adap->timeout)) { + start = jiffies; + while (!getscl(adap)) { + /* This hw knows how to read the clock line, so we wait + * until it actually gets high. This is safer as some + * chips may hold it low ("clock stretching") while they + * are processing data internally. + */ + if (time_after_eq(jiffies, start + adap->timeout)) return -ETIMEDOUT; - } cond_resched(); } #ifdef DEBUG @@ -118,11 +117,11 @@ static int sclhi(struct i2c_algo_bit_data *adap) done: udelay(adap->udelay); return 0; -} +} /* --- other auxiliary functions -------------------------------------- */ -static void i2c_start(struct i2c_algo_bit_data *adap) +static void i2c_start(struct i2c_algo_bit_data *adap) { /* assert: scl, sda are high */ setsda(adap, 0); @@ -130,7 +129,7 @@ static void i2c_start(struct i2c_algo_bit_data *adap) scllo(adap); } -static void i2c_repstart(struct i2c_algo_bit_data *adap) +static void i2c_repstart(struct i2c_algo_bit_data *adap) { /* assert: scl is low */ sdahi(adap); @@ -141,18 +140,18 @@ static void i2c_repstart(struct i2c_algo_bit_data *adap) } -static void i2c_stop(struct i2c_algo_bit_data *adap) +static void i2c_stop(struct i2c_algo_bit_data *adap) { /* assert: scl is low */ sdalo(adap); - sclhi(adap); + sclhi(adap); setsda(adap, 1); udelay(adap->udelay); } -/* send a byte without start cond., look for arbitration, +/* send a byte without start cond., look for arbitration, check ackn. from slave */ /* returns: * 1 if the device acknowledged @@ -167,27 +166,33 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c) struct i2c_algo_bit_data *adap = i2c_adap->algo_data; /* assert: scl is low */ - for ( i=7 ; i>=0 ; i-- ) { + for (i = 7; i >= 0; i--) { sb = (c >> i) & 1; - setsda(adap,sb); + setsda(adap, sb); udelay((adap->udelay + 1) / 2); - if (sclhi(adap)<0) { /* timed out */ + if (sclhi(adap) < 0) { /* timed out */ bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, " "timeout at bit #%d\n", (int)c, i); return -ETIMEDOUT; - }; - /* do arbitration here: - * if ( sb && ! getsda(adap) ) -> ouch! Get out of here. + } + /* FIXME do arbitration here: + * if (sb && !getsda(adap)) -> ouch! Get out of here. + * + * Report a unique code, so higher level code can retry + * the whole (combined) message and *NOT* issue STOP. */ scllo(adap); } sdahi(adap); - if (sclhi(adap)<0){ /* timeout */ + if (sclhi(adap) < 0) { /* timeout */ bit_dbg(1, &i2c_adap->dev, "i2c_outb: 0x%02x, " "timeout at ack\n", (int)c); return -ETIMEDOUT; - }; - /* read ack: SDA should be pulled down by slave */ + } + + /* read ack: SDA should be pulled down by slave, or it may + * NAK (usually to report problems with the data we wrote). + */ ack = !getsda(adap); /* ack: sda is pulled low -> success */ bit_dbg(2, &i2c_adap->dev, "i2c_outb: 0x%02x %s\n", (int)c, ack ? "A" : "NA"); @@ -198,24 +203,24 @@ static int i2c_outb(struct i2c_adapter *i2c_adap, unsigned char c) } -static int i2c_inb(struct i2c_adapter *i2c_adap) +static int i2c_inb(struct i2c_adapter *i2c_adap) { /* read byte via i2c port, without start/stop sequence */ /* acknowledge is sent in i2c_read. */ int i; - unsigned char indata=0; + unsigned char indata = 0; struct i2c_algo_bit_data *adap = i2c_adap->algo_data; /* assert: scl is low */ sdahi(adap); - for (i=0;i<8;i++) { - if (sclhi(adap)<0) { /* timeout */ + for (i = 0; i < 8; i++) { + if (sclhi(adap) < 0) { /* timeout */ bit_dbg(1, &i2c_adap->dev, "i2c_inb: timeout at bit " "#%d\n", 7 - i); return -ETIMEDOUT; - }; + } indata *= 2; - if ( getsda(adap) ) + if (getsda(adap)) indata |= 0x01; setscl(adap, 0); udelay(i == 7 ? adap->udelay / 2 : adap->udelay); @@ -228,66 +233,67 @@ static int i2c_inb(struct i2c_adapter *i2c_adap) * Sanity check for the adapter hardware - check the reaction of * the bus lines only if it seems to be idle. */ -static int test_bus(struct i2c_algo_bit_data *adap, char* name) { - int scl,sda; +static int test_bus(struct i2c_algo_bit_data *adap, char *name) +{ + int scl, sda; - if (adap->getscl==NULL) + if (adap->getscl == NULL) pr_info("%s: Testing SDA only, SCL is not readable\n", name); - sda=getsda(adap); - scl=(adap->getscl==NULL?1:getscl(adap)); - if (!scl || !sda ) { + sda = getsda(adap); + scl = (adap->getscl == NULL) ? 1 : getscl(adap); + if (!scl || !sda) { printk(KERN_WARNING "%s: bus seems to be busy\n", name); goto bailout; } sdalo(adap); - sda=getsda(adap); - scl=(adap->getscl==NULL?1:getscl(adap)); - if ( 0 != sda ) { + sda = getsda(adap); + scl = (adap->getscl == NULL) ? 1 : getscl(adap); + if (sda) { printk(KERN_WARNING "%s: SDA stuck high!\n", name); goto bailout; } - if ( 0 == scl ) { + if (!scl) { printk(KERN_WARNING "%s: SCL unexpected low " "while pulling SDA low!\n", name); goto bailout; - } + } sdahi(adap); - sda=getsda(adap); - scl=(adap->getscl==NULL?1:getscl(adap)); - if ( 0 == sda ) { + sda = getsda(adap); + scl = (adap->getscl == NULL) ? 1 : getscl(adap); + if (!sda) { printk(KERN_WARNING "%s: SDA stuck low!\n", name); goto bailout; } - if ( 0 == scl ) { + if (!scl) { printk(KERN_WARNING "%s: SCL unexpected low " "while pulling SDA high!\n", name); goto bailout; } scllo(adap); - sda=getsda(adap); - scl=(adap->getscl==NULL?0:getscl(adap)); - if ( 0 != scl ) { + sda = getsda(adap); + scl = (adap->getscl == NULL) ? 0 : getscl(adap); + if (scl) { printk(KERN_WARNING "%s: SCL stuck high!\n", name); goto bailout; } - if ( 0 == sda ) { + if (!sda) { printk(KERN_WARNING "%s: SDA unexpected low " "while pulling SCL low!\n", name); goto bailout; } - + sclhi(adap); - sda=getsda(adap); - scl=(adap->getscl==NULL?1:getscl(adap)); - if ( 0 == scl ) { + sda = getsda(adap); + scl = (adap->getscl == NULL) ? 1 : getscl(adap); + if (!scl) { printk(KERN_WARNING "%s: SCL stuck low!\n", name); goto bailout; } - if ( 0 == sda ) { + if (!sda) { printk(KERN_WARNING "%s: SDA unexpected low " "while pulling SCL high!\n", name); goto bailout; @@ -314,9 +320,10 @@ static int try_address(struct i2c_adapter *i2c_adap, unsigned char addr, int retries) { struct i2c_algo_bit_data *adap = i2c_adap->algo_data; - int i,ret = -1; - for (i=0;i<=retries;i++) { - ret = i2c_outb(i2c_adap,addr); + int i, ret = -1; + + for (i = 0; i <= retries; i++) { + ret = i2c_outb(i2c_adap, addr); if (ret == 1 || i == retries) break; bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n"); @@ -338,20 +345,38 @@ static int sendbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) { const unsigned char *temp = msg->buf; int count = msg->len; - unsigned short nak_ok = msg->flags & I2C_M_IGNORE_NAK; + unsigned short nak_ok = msg->flags & I2C_M_IGNORE_NAK; int retval; - int wrcount=0; + int wrcount = 0; while (count > 0) { retval = i2c_outb(i2c_adap, *temp); - if ((retval>0) || (nak_ok && (retval==0))) { /* ok or ignored NAK */ - count--; + + /* OK/ACK; or ignored NAK */ + if ((retval > 0) || (nak_ok && (retval == 0))) { + count--; temp++; wrcount++; - } else { /* arbitration or no acknowledge */ - dev_err(&i2c_adap->dev, "sendbytes: error - bailout.\n"); - return (retval<0)? retval : -EFAULT; - /* got a better one ?? */ + + /* A slave NAKing the master means the slave didn't like + * something about the data it saw. For example, maybe + * the SMBus PEC was wrong. + */ + } else if (retval == 0) { + dev_err(&i2c_adap->dev, "sendbytes: NAK bailout.\n"); + return -EIO; + + /* Timeout; or (someday) lost arbitration + * + * FIXME Lost ARB implies retrying the transaction from + * the first message, after the "winning" master issues + * its STOP. As a rule, upper layer code has no reason + * to know or care about this ... it is *NOT* an error. + */ + } else { + dev_err(&i2c_adap->dev, "sendbytes: error %d\n", + retval); + return retval; } } return wrcount; @@ -376,14 +401,14 @@ static int acknak(struct i2c_adapter *i2c_adap, int is_ack) static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) { int inval; - int rdcount=0; /* counts bytes read */ + int rdcount = 0; /* counts bytes read */ unsigned char *temp = msg->buf; int count = msg->len; const unsigned flags = msg->flags; while (count > 0) { inval = i2c_inb(i2c_adap); - if (inval>=0) { + if (inval >= 0) { *temp = inval; rdcount++; } else { /* read timed out */ @@ -431,7 +456,7 @@ static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) * returns: * 0 everything went okay, the chip ack'ed, or IGNORE_NAK flag was set * -x an error occurred (like: -EREMOTEIO if the device did not answer, or - * -ETIMEDOUT, for example if the lines are stuck...) + * -ETIMEDOUT, for example if the lines are stuck...) */ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) { @@ -443,10 +468,10 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) int ret, retries; retries = nak_ok ? 0 : i2c_adap->retries; - - if ( (flags & I2C_M_TEN) ) { + + if (flags & I2C_M_TEN) { /* a ten bit address */ - addr = 0xf0 | (( msg->addr >> 7) & 0x03); + addr = 0xf0 | ((msg->addr >> 7) & 0x03); bit_dbg(2, &i2c_adap->dev, "addr0: %d\n", addr); /* try extended address code...*/ ret = try_address(i2c_adap, addr, retries); @@ -456,33 +481,33 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) return -EREMOTEIO; } /* the remaining 8 bit address */ - ret = i2c_outb(i2c_adap,msg->addr & 0x7f); + ret = i2c_outb(i2c_adap, msg->addr & 0x7f); if ((ret != 1) && !nak_ok) { /* the chip did not ack / xmission error occurred */ dev_err(&i2c_adap->dev, "died at 2nd address code\n"); return -EREMOTEIO; } - if ( flags & I2C_M_RD ) { + if (flags & I2C_M_RD) { bit_dbg(3, &i2c_adap->dev, "emitting repeated " "start condition\n"); i2c_repstart(adap); /* okay, now switch into reading mode */ addr |= 0x01; ret = try_address(i2c_adap, addr, retries); - if ((ret!=1) && !nak_ok) { + if ((ret != 1) && !nak_ok) { dev_err(&i2c_adap->dev, "died at repeated address code\n"); return -EREMOTEIO; } } } else { /* normal 7bit address */ - addr = ( msg->addr << 1 ); - if (flags & I2C_M_RD ) + addr = msg->addr << 1; + if (flags & I2C_M_RD) addr |= 1; - if (flags & I2C_M_REV_DIR_ADDR ) + if (flags & I2C_M_REV_DIR_ADDR) addr ^= 1; ret = try_address(i2c_adap, addr, retries); - if ((ret!=1) && !nak_ok) + if ((ret != 1) && !nak_ok) return -EREMOTEIO; } @@ -494,15 +519,14 @@ static int bit_xfer(struct i2c_adapter *i2c_adap, { struct i2c_msg *pmsg; struct i2c_algo_bit_data *adap = i2c_adap->algo_data; - - int i,ret; + int i, ret; unsigned short nak_ok; bit_dbg(3, &i2c_adap->dev, "emitting start condition\n"); i2c_start(adap); - for (i=0;i<num;i++) { + for (i = 0; i < num; i++) { pmsg = &msgs[i]; - nak_ok = pmsg->flags & I2C_M_IGNORE_NAK; + nak_ok = pmsg->flags & I2C_M_IGNORE_NAK; if (!(pmsg->flags & I2C_M_NOSTART)) { if (i) { bit_dbg(3, &i2c_adap->dev, "emitting " @@ -517,7 +541,7 @@ static int bit_xfer(struct i2c_adapter *i2c_adap, goto bailout; } } - if (pmsg->flags & I2C_M_RD ) { + if (pmsg->flags & I2C_M_RD) { /* read bytes into buffer*/ ret = readbytes(i2c_adap, pmsg); if (ret >= 1) @@ -551,7 +575,7 @@ bailout: static u32 bit_func(struct i2c_adapter *adap) { - return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_SMBUS_READ_BLOCK_DATA | I2C_FUNC_SMBUS_BLOCK_PROC_CALL | I2C_FUNC_10BIT_ADDR | I2C_FUNC_PROTOCOL_MANGLING; @@ -565,8 +589,8 @@ static const struct i2c_algorithm i2c_bit_algo = { .functionality = bit_func, }; -/* - * registering functions to load algorithms at runtime +/* + * registering functions to load algorithms at runtime */ static int i2c_bit_prepare_bus(struct i2c_adapter *adap) { @@ -574,7 +598,7 @@ static int i2c_bit_prepare_bus(struct i2c_adapter *adap) if (bit_test) { int ret = test_bus(bit_adap, adap->name); - if (ret<0) + if (ret < 0) return -ENODEV; } diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c index ab2e6f3498b..8907b019167 100644 --- a/drivers/i2c/algos/i2c-algo-pcf.c +++ b/drivers/i2c/algos/i2c-algo-pcf.c @@ -203,35 +203,6 @@ static int pcf_init_8584 (struct i2c_algo_pcf_data *adap) /* ----- Utility functions */ -static inline int try_address(struct i2c_algo_pcf_data *adap, - unsigned char addr, int retries) -{ - int i, status, ret = -1; - int wfp; - for (i=0;i<retries;i++) { - i2c_outb(adap, addr); - i2c_start(adap); - status = get_pcf(adap, 1); - if ((wfp = wait_for_pin(adap, &status)) >= 0) { - if ((status & I2C_PCF_LRB) == 0) { - i2c_stop(adap); - break; /* success! */ - } - } - if (wfp == -EINTR) { - /* arbitration lost */ - udelay(adap->udelay); - return -EINTR; - } - i2c_stop(adap); - udelay(adap->udelay); - } - DEB2(if (i) printk(KERN_DEBUG "i2c-algo-pcf.o: needed %d retries for %d\n",i, - addr)); - return ret; -} - - static int pcf_sendbytes(struct i2c_adapter *i2c_adap, const char *buf, int count, int last) { @@ -321,47 +292,19 @@ static int pcf_readbytes(struct i2c_adapter *i2c_adap, char *buf, } -static inline int pcf_doAddress(struct i2c_algo_pcf_data *adap, - struct i2c_msg *msg, int retries) +static int pcf_doAddress(struct i2c_algo_pcf_data *adap, + struct i2c_msg *msg) { unsigned short flags = msg->flags; unsigned char addr; - int ret; - if ( (flags & I2C_M_TEN) ) { - /* a ten bit address */ - addr = 0xf0 | (( msg->addr >> 7) & 0x03); - DEB2(printk(KERN_DEBUG "addr0: %d\n",addr)); - /* try extended address code...*/ - ret = try_address(adap, addr, retries); - if (ret!=1) { - printk(KERN_ERR "died at extended address code.\n"); - return -EREMOTEIO; - } - /* the remaining 8 bit address */ - i2c_outb(adap,msg->addr & 0x7f); -/* Status check comes here */ - if (ret != 1) { - printk(KERN_ERR "died at 2nd address code.\n"); - return -EREMOTEIO; - } - if ( flags & I2C_M_RD ) { - i2c_repstart(adap); - /* okay, now switch into reading mode */ - addr |= 0x01; - ret = try_address(adap, addr, retries); - if (ret!=1) { - printk(KERN_ERR "died at extended address code.\n"); - return -EREMOTEIO; - } - } - } else { /* normal 7bit address */ - addr = ( msg->addr << 1 ); - if (flags & I2C_M_RD ) - addr |= 1; - if (flags & I2C_M_REV_DIR_ADDR ) - addr ^= 1; - i2c_outb(adap, addr); - } + + addr = msg->addr << 1; + if (flags & I2C_M_RD) + addr |= 1; + if (flags & I2C_M_REV_DIR_ADDR) + addr ^= 1; + i2c_outb(adap, addr); + return 0; } @@ -390,7 +333,7 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, pmsg->flags & I2C_M_RD ? "read" : "write", pmsg->len, pmsg->addr, i + 1, num);) - ret = pcf_doAddress(adap, pmsg, i2c_adap->retries); + ret = pcf_doAddress(adap, pmsg); /* Send START */ if (i == 0) { @@ -453,7 +396,7 @@ static int pcf_xfer(struct i2c_adapter *i2c_adap, static u32 pcf_func(struct i2c_adapter *adap) { return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | - I2C_FUNC_10BIT_ADDR | I2C_FUNC_PROTOCOL_MANGLING; + I2C_FUNC_PROTOCOL_MANGLING; } /* -----exported algorithm data: ------------------------------------- */ @@ -475,9 +418,7 @@ int i2c_pcf_add_bus(struct i2c_adapter *adap) /* register new adapter to i2c module... */ adap->algo = &pcf_algo; - - adap->timeout = 100; /* default values, should */ - adap->retries = 3; /* be replaced by defines */ + adap->timeout = 100; if ((rval = pcf_init_8584(pcf_adap))) return rval; diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index c466c6cfc2e..8d12b26bb6c 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -182,7 +182,8 @@ config I2C_I801 will be called i2c-i801. config I2C_I810 - tristate "Intel 810/815" + tristate "Intel 810/815 (DEPRECATED)" + default n depends on PCI select I2C_ALGOBIT help @@ -195,6 +196,8 @@ config I2C_I810 i815 i845G + This driver is deprecated in favor of the i810fb and intelfb drivers. + This driver can also be built as a module. If so, the module will be called i2c-i810. @@ -259,20 +262,6 @@ config I2C_IOP3XX This driver can also be built as a module. If so, the module will be called i2c-iop3xx. -config I2C_IXP4XX - tristate "IXP4xx GPIO-Based I2C Interface (DEPRECATED)" - depends on ARCH_IXP4XX - select I2C_ALGOBIT - help - Say Y here if you have an Intel IXP4xx(420,421,422,425) based - system and are using GPIO lines for an I2C bus. - - This support is also available as a module. If so, the module - will be called i2c-ixp4xx. - - This driver is deprecated and will be dropped soon. Use i2c-gpio - instead. - config I2C_IXP2000 tristate "IXP2000 GPIO-Based I2C Interface (DEPRECATED)" depends on ARCH_IXP2000 @@ -396,7 +385,8 @@ config I2C_PASEMI Supports the PA Semi PWRficient on-chip SMBus interfaces. config I2C_PROSAVAGE - tristate "S3/VIA (Pro)Savage" + tristate "S3/VIA (Pro)Savage (DEPRECATED)" + default n depends on PCI select I2C_ALGOBIT help @@ -407,6 +397,8 @@ config I2C_PROSAVAGE S3/VIA KM266/VT8375 aka ProSavage8 S3/VIA KM133/VT8365 aka Savage4 + This driver is deprecated in favor of the savagefb driver. + This support is also available as a module. If so, the module will be called i2c-prosavage. @@ -418,13 +410,16 @@ config I2C_S3C2410 Samsung S3C2410 based System-on-Chip devices. config I2C_SAVAGE4 - tristate "S3 Savage 4" - depends on PCI && EXPERIMENTAL + tristate "S3 Savage 4 (DEPRECATED)" + default n + depends on PCI select I2C_ALGOBIT help If you say yes to this option, support will be included for the S3 Savage 4 I2C interface. + This driver is deprecated in favor of the savagefb driver. + This driver can also be built as a module. If so, the module will be called i2c-savage4. @@ -611,7 +606,7 @@ config I2C_VIAPRO VT8231 VT8233/A VT8235 - VT8237R/A + VT8237R/A/S VT8251 CX700 diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 81d43c27cf9..ea7068f1eb6 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -20,7 +20,6 @@ obj-$(CONFIG_I2C_I810) += i2c-i810.o obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o -obj-$(CONFIG_I2C_IXP4XX) += i2c-ixp4xx.o obj-$(CONFIG_I2C_POWERMAC) += i2c-powermac.o obj-$(CONFIG_I2C_MPC) += i2c-mpc.o obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index 7490dc1771a..573abe44084 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c @@ -334,6 +334,10 @@ static int __devinit amd756_probe(struct pci_dev *pdev, int error; u8 temp; + /* driver_data might come from user-space, so check it */ + if (id->driver_data > ARRAY_SIZE(chipname)) + return -EINVAL; + if (amd756_ioport) { dev_err(&pdev->dev, "Only one device supported " "(you have a strange motherboard, btw)\n"); @@ -405,6 +409,7 @@ static struct pci_driver amd756_driver = { .id_table = amd756_ids, .probe = amd756_probe, .remove = __devexit_p(amd756_remove), + .dynids.use_driver_data = 1, }; static int __init amd756_init(void) diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c index 2f684166c43..1953b26da56 100644 --- a/drivers/i2c/busses/i2c-au1550.c +++ b/drivers/i2c/busses/i2c-au1550.c @@ -30,14 +30,22 @@ #include <linux/delay.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/i2c.h> +#include <linux/slab.h> #include <asm/mach-au1x00/au1xxx.h> #include <asm/mach-au1x00/au1xxx_psc.h> -#include "i2c-au1550.h" +struct i2c_au1550_data { + u32 psc_base; + int xfer_timeout; + int ack_timeout; + struct i2c_adapter adap; + struct resource *ioarea; +}; static int wait_xfer_done(struct i2c_au1550_data *adap) @@ -105,7 +113,7 @@ wait_master_done(struct i2c_au1550_data *adap) } static int -do_address(struct i2c_au1550_data *adap, unsigned int addr, int rd) +do_address(struct i2c_au1550_data *adap, unsigned int addr, int rd, int q) { volatile psc_smb_t *sp; u32 stat; @@ -134,6 +142,10 @@ do_address(struct i2c_au1550_data *adap, unsigned int addr, int rd) if (rd) addr |= 1; + /* zero-byte xfers stop immediately */ + if (q) + addr |= PSC_SMBTXRX_STP; + /* Put byte into fifo, start up master. */ sp->psc_smbtxrx = addr; @@ -142,7 +154,7 @@ do_address(struct i2c_au1550_data *adap, unsigned int addr, int rd) au_sync(); if (wait_ack(adap)) return -EIO; - return 0; + return (q) ? wait_master_done(adap) : 0; } static u32 @@ -262,7 +274,8 @@ au1550_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num) for (i = 0; !err && i < num; i++) { p = &msgs[i]; - err = do_address(adap, p->addr, p->flags & I2C_M_RD); + err = do_address(adap, p->addr, p->flags & I2C_M_RD, + (p->len == 0)); if (err || !p->len) continue; if (p->flags & I2C_M_RD) @@ -294,18 +307,48 @@ static const struct i2c_algorithm au1550_algo = { * Prior to calling us, the 50MHz clock frequency and routing * must have been set up for the PSC indicated by the adapter. */ -int -i2c_au1550_add_bus(struct i2c_adapter *i2c_adap) +static int __devinit +i2c_au1550_probe(struct platform_device *pdev) { - struct i2c_au1550_data *adap = i2c_adap->algo_data; - volatile psc_smb_t *sp; - u32 stat; + struct i2c_au1550_data *priv; + volatile psc_smb_t *sp; + struct resource *r; + u32 stat; + int ret; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + ret = -ENODEV; + goto out; + } + + priv = kzalloc(sizeof(struct i2c_au1550_data), GFP_KERNEL); + if (!priv) { + ret = -ENOMEM; + goto out; + } + + priv->ioarea = request_mem_region(r->start, r->end - r->start + 1, + pdev->name); + if (!priv->ioarea) { + ret = -EBUSY; + goto out_mem; + } - i2c_adap->algo = &au1550_algo; + priv->psc_base = r->start; + priv->xfer_timeout = 200; + priv->ack_timeout = 200; + + priv->adap.id = I2C_HW_AU1550_PSC; + priv->adap.nr = pdev->id; + priv->adap.algo = &au1550_algo; + priv->adap.algo_data = priv; + priv->adap.dev.parent = &pdev->dev; + strlcpy(priv->adap.name, "Au1xxx PSC I2C", sizeof(priv->adap.name)); /* Now, set up the PSC for SMBus PIO mode. */ - sp = (volatile psc_smb_t *)(adap->psc_base); + sp = (volatile psc_smb_t *)priv->psc_base; sp->psc_ctrl = PSC_CTRL_DISABLE; au_sync(); sp->psc_sel = PSC_SEL_PS_SMBUSMODE; @@ -343,87 +386,87 @@ i2c_au1550_add_bus(struct i2c_adapter *i2c_adap) au_sync(); } while ((stat & PSC_SMBSTAT_DR) == 0); - return i2c_add_adapter(i2c_adap); -} + ret = i2c_add_numbered_adapter(&priv->adap); + if (ret == 0) { + platform_set_drvdata(pdev, priv); + return 0; + } + /* disable the PSC */ + sp->psc_smbcfg = 0; + sp->psc_ctrl = PSC_CTRL_DISABLE; + au_sync(); -int -i2c_au1550_del_bus(struct i2c_adapter *adap) + release_resource(priv->ioarea); + kfree(priv->ioarea); +out_mem: + kfree(priv); +out: + return ret; +} + +static int __devexit +i2c_au1550_remove(struct platform_device *pdev) { - return i2c_del_adapter(adap); + struct i2c_au1550_data *priv = platform_get_drvdata(pdev); + volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base; + + platform_set_drvdata(pdev, NULL); + i2c_del_adapter(&priv->adap); + sp->psc_smbcfg = 0; + sp->psc_ctrl = PSC_CTRL_DISABLE; + au_sync(); + release_resource(priv->ioarea); + kfree(priv->ioarea); + kfree(priv); + return 0; } static int -pb1550_reg(struct i2c_client *client) +i2c_au1550_suspend(struct platform_device *pdev, pm_message_t state) { + struct i2c_au1550_data *priv = platform_get_drvdata(pdev); + volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base; + + sp->psc_ctrl = PSC_CTRL_SUSPEND; + au_sync(); return 0; } static int -pb1550_unreg(struct i2c_client *client) +i2c_au1550_resume(struct platform_device *pdev) { + struct i2c_au1550_data *priv = platform_get_drvdata(pdev); + volatile psc_smb_t *sp = (volatile psc_smb_t *)priv->psc_base; + + sp->psc_ctrl = PSC_CTRL_ENABLE; + au_sync(); + while (!(sp->psc_smbstat & PSC_SMBSTAT_SR)) + au_sync(); return 0; } -static struct i2c_au1550_data pb1550_i2c_info = { - SMBUS_PSC_BASE, 200, 200 -}; - -static struct i2c_adapter pb1550_board_adapter = { - name: "pb1550 adapter", - id: I2C_HW_AU1550_PSC, - algo: NULL, - algo_data: &pb1550_i2c_info, - client_register: pb1550_reg, - client_unregister: pb1550_unreg, +static struct platform_driver au1xpsc_smbus_driver = { + .driver = { + .name = "au1xpsc_smbus", + .owner = THIS_MODULE, + }, + .probe = i2c_au1550_probe, + .remove = __devexit_p(i2c_au1550_remove), + .suspend = i2c_au1550_suspend, + .resume = i2c_au1550_resume, }; -/* BIG hack to support the control interface on the Wolfson WM8731 - * audio codec on the Pb1550 board. We get an address and two data - * bytes to write, create an i2c message, and send it across the - * i2c transfer function. We do this here because we have access to - * the i2c adapter structure. - */ -static struct i2c_msg wm_i2c_msg; /* We don't want this stuff on the stack */ -static u8 i2cbuf[2]; - -int -pb1550_wm_codec_write(u8 addr, u8 reg, u8 val) -{ - wm_i2c_msg.addr = addr; - wm_i2c_msg.flags = 0; - wm_i2c_msg.buf = i2cbuf; - wm_i2c_msg.len = 2; - i2cbuf[0] = reg; - i2cbuf[1] = val; - - return pb1550_board_adapter.algo->master_xfer(&pb1550_board_adapter, &wm_i2c_msg, 1); -} - static int __init i2c_au1550_init(void) { - printk(KERN_INFO "Au1550 I2C: "); - - /* This is where we would set up a 50MHz clock source - * and routing. On the Pb1550, the SMBus is PSC2, which - * uses a shared clock with USB. This has been already - * configured by Yamon as a 48MHz clock, close enough - * for our work. - */ - if (i2c_au1550_add_bus(&pb1550_board_adapter) < 0) { - printk("failed to initialize.\n"); - return -ENODEV; - } - - printk("initialized.\n"); - return 0; + return platform_driver_register(&au1xpsc_smbus_driver); } static void __exit i2c_au1550_exit(void) { - i2c_au1550_del_bus(&pb1550_board_adapter); + platform_driver_unregister(&au1xpsc_smbus_driver); } MODULE_AUTHOR("Dan Malek, Embedded Edge, LLC."); diff --git a/drivers/i2c/busses/i2c-au1550.h b/drivers/i2c/busses/i2c-au1550.h deleted file mode 100644 index fce15d161ae..00000000000 --- a/drivers/i2c/busses/i2c-au1550.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright (C) 2004 Embedded Edge, LLC <dan@embeddededge.com> - * 2.6 port by Matt Porter <mporter@kernel.crashing.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef I2C_AU1550_H -#define I2C_AU1550_H - -struct i2c_au1550_data { - u32 psc_base; - int xfer_timeout; - int ack_timeout; -}; - -int i2c_au1550_add_bus(struct i2c_adapter *); -int i2c_au1550_del_bus(struct i2c_adapter *); - -#endif /* I2C_AU1550_H */ diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c index 67224a424ab..7dbdaeb707a 100644 --- a/drivers/i2c/busses/i2c-bfin-twi.c +++ b/drivers/i2c/busses/i2c-bfin-twi.c @@ -550,6 +550,7 @@ static int i2c_bfin_twi_probe(struct platform_device *dev) p_adap = &iface->adap; p_adap->id = I2C_HW_BLACKFIN; + p_adap->nr = dev->id; strlcpy(p_adap->name, dev->name, sizeof(p_adap->name)); p_adap->algo = &bfin_twi_algorithm; p_adap->algo_data = iface; @@ -576,7 +577,7 @@ static int i2c_bfin_twi_probe(struct platform_device *dev) bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() | TWI_ENA); SSYNC(); - rc = i2c_add_adapter(p_adap); + rc = i2c_add_numbered_adapter(p_adap); if (rc < 0) free_irq(iface->irq, iface); else diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index 67679882ebe..cce5a614758 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -510,7 +510,6 @@ static int davinci_i2c_probe(struct platform_device *pdev) /* FIXME */ adap->timeout = 1; - adap->retries = 1; adap->nr = pdev->id; r = i2c_add_numbered_adapter(adap); diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index ac27e5f84eb..aa9157913b9 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -4,6 +4,7 @@ Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker <mdsxyz123@yahoo.com> + Copyright (C) 2007 Jean Delvare <khali@linux-fr.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -21,25 +22,34 @@ */ /* - SUPPORTED DEVICES PCI ID - 82801AA 2413 - 82801AB 2423 - 82801BA 2443 - 82801CA/CAM 2483 - 82801DB 24C3 (HW PEC supported) - 82801EB 24D3 (HW PEC supported) - 6300ESB 25A4 - ICH6 266A - ICH7 27DA - ESB2 269B - ICH8 283E - ICH9 2930 - Tolapai 5032 - This driver supports several versions of Intel's I/O Controller Hubs (ICH). - For SMBus support, they are similar to the PIIX4 and are part - of Intel's '810' and other chipsets. - See the file Documentation/i2c/busses/i2c-i801 for details. - I2C Block Read and Process Call are not supported. + Supports the following Intel I/O Controller Hubs (ICH): + + I/O Block I2C + region SMBus Block proc. block + Chip name PCI ID size PEC buffer call read + ---------------------------------------------------------------------- + 82801AA (ICH) 0x2413 16 no no no no + 82801AB (ICH0) 0x2423 16 no no no no + 82801BA (ICH2) 0x2443 16 no no no no + 82801CA (ICH3) 0x2483 32 soft no no no + 82801DB (ICH4) 0x24c3 32 hard yes no no + 82801E (ICH5) 0x24d3 32 hard yes yes yes + 6300ESB 0x25a4 32 hard yes yes yes + 82801F (ICH6) 0x266a 32 hard yes yes yes + 6310ESB/6320ESB 0x269b 32 hard yes yes yes + 82801G (ICH7) 0x27da 32 hard yes yes yes + 82801H (ICH8) 0x283e 32 hard yes yes yes + 82801I (ICH9) 0x2930 32 hard yes yes yes + Tolapai 0x5032 32 hard yes ? ? + + Features supported by this driver: + Software PEC no + Hardware PEC yes + Block buffer yes + Block process call transaction no + I2C block read transaction yes (doesn't use the block buffer) + + See the file Documentation/i2c/busses/i2c-i801 for details. */ /* Note: we assume there can only be one I801, with one SMBus interface */ @@ -62,9 +72,9 @@ #define SMBHSTDAT0 (5 + i801_smba) #define SMBHSTDAT1 (6 + i801_smba) #define SMBBLKDAT (7 + i801_smba) -#define SMBPEC (8 + i801_smba) /* ICH4 only */ -#define SMBAUXSTS (12 + i801_smba) /* ICH4 only */ -#define SMBAUXCTL (13 + i801_smba) /* ICH4 only */ +#define SMBPEC (8 + i801_smba) /* ICH3 and later */ +#define SMBAUXSTS (12 + i801_smba) /* ICH4 and later */ +#define SMBAUXCTL (13 + i801_smba) /* ICH4 and later */ /* PCI Address Constants */ #define SMBBAR 4 @@ -91,13 +101,13 @@ #define I801_BYTE 0x04 #define I801_BYTE_DATA 0x08 #define I801_WORD_DATA 0x0C -#define I801_PROC_CALL 0x10 /* later chips only, unimplemented */ +#define I801_PROC_CALL 0x10 /* unimplemented */ #define I801_BLOCK_DATA 0x14 -#define I801_I2C_BLOCK_DATA 0x18 /* unimplemented */ +#define I801_I2C_BLOCK_DATA 0x18 /* ICH5 and later */ #define I801_BLOCK_LAST 0x34 -#define I801_I2C_BLOCK_LAST 0x38 /* unimplemented */ +#define I801_I2C_BLOCK_LAST 0x38 /* ICH5 and later */ #define I801_START 0x40 -#define I801_PEC_EN 0x80 /* ICH4 only */ +#define I801_PEC_EN 0x80 /* ICH3 and later */ /* I801 Hosts Status register bits */ #define SMBHSTSTS_BYTE_DONE 0x80 @@ -113,7 +123,12 @@ static unsigned long i801_smba; static unsigned char i801_original_hstcfg; static struct pci_driver i801_driver; static struct pci_dev *I801_dev; -static int isich4; + +#define FEATURE_SMBUS_PEC (1 << 0) +#define FEATURE_BLOCK_BUFFER (1 << 1) +#define FEATURE_BLOCK_PROC (1 << 2) +#define FEATURE_I2C_BLOCK_READ (1 << 3) +static unsigned int i801_features; static int i801_transaction(int xact) { @@ -242,7 +257,8 @@ static int i801_block_transaction_by_block(union i2c_smbus_data *data, } static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, - char read_write, int hwpec) + char read_write, int command, + int hwpec) { int i, len; int smbcmd; @@ -259,16 +275,24 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, } for (i = 1; i <= len; i++) { - if (i == len && read_write == I2C_SMBUS_READ) - smbcmd = I801_BLOCK_LAST; - else - smbcmd = I801_BLOCK_DATA; + if (i == len && read_write == I2C_SMBUS_READ) { + if (command == I2C_SMBUS_I2C_BLOCK_DATA) + smbcmd = I801_I2C_BLOCK_LAST; + else + smbcmd = I801_BLOCK_LAST; + } else { + if (command == I2C_SMBUS_I2C_BLOCK_DATA + && read_write == I2C_SMBUS_READ) + smbcmd = I801_I2C_BLOCK_DATA; + else + smbcmd = I801_BLOCK_DATA; + } outb_p(smbcmd | ENABLE_INT9, SMBHSTCNT); dev_dbg(&I801_dev->dev, "Block (pre %d): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, BLKDAT=%02x\n", i, + "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i, inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD), - inb_p(SMBHSTDAT0), inb_p(SMBBLKDAT)); + inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT)); /* Make sure the SMBus host is ready to start transmitting */ temp = inb_p(SMBHSTSTS); @@ -332,7 +356,8 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, dev_dbg(&I801_dev->dev, "Error: no response!\n"); } - if (i == 1 && read_write == I2C_SMBUS_READ) { + if (i == 1 && read_write == I2C_SMBUS_READ + && command != I2C_SMBUS_I2C_BLOCK_DATA) { len = inb_p(SMBHSTDAT0); if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) return -1; @@ -353,9 +378,9 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, temp); } dev_dbg(&I801_dev->dev, "Block (post %d): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, BLKDAT=%02x\n", i, + "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i, inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD), - inb_p(SMBHSTDAT0), inb_p(SMBBLKDAT)); + inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT)); if (result < 0) return result; @@ -384,33 +409,38 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write, pci_read_config_byte(I801_dev, SMBHSTCFG, &hostc); pci_write_config_byte(I801_dev, SMBHSTCFG, hostc | SMBHSTCFG_I2C_EN); - } else { + } else if (!(i801_features & FEATURE_I2C_BLOCK_READ)) { dev_err(&I801_dev->dev, - "I2C_SMBUS_I2C_BLOCK_READ not DB!\n"); + "I2C block read is unsupported!\n"); return -1; } } - if (read_write == I2C_SMBUS_WRITE) { + if (read_write == I2C_SMBUS_WRITE + || command == I2C_SMBUS_I2C_BLOCK_DATA) { if (data->block[0] < 1) data->block[0] = 1; if (data->block[0] > I2C_SMBUS_BLOCK_MAX) data->block[0] = I2C_SMBUS_BLOCK_MAX; } else { - data->block[0] = 32; /* max for reads */ + data->block[0] = 32; /* max for SMBus block reads */ } - if (isich4 && i801_set_block_buffer_mode() == 0 ) + if ((i801_features & FEATURE_BLOCK_BUFFER) + && !(command == I2C_SMBUS_I2C_BLOCK_DATA + && read_write == I2C_SMBUS_READ) + && i801_set_block_buffer_mode() == 0) result = i801_block_transaction_by_block(data, read_write, hwpec); else result = i801_block_transaction_byte_by_byte(data, read_write, - hwpec); + command, hwpec); if (result == 0 && hwpec) i801_wait_hwpec(); - if (command == I2C_SMBUS_I2C_BLOCK_DATA) { + if (command == I2C_SMBUS_I2C_BLOCK_DATA + && read_write == I2C_SMBUS_WRITE) { /* restore saved configuration register value */ pci_write_config_byte(I801_dev, SMBHSTCFG, hostc); } @@ -426,7 +456,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, int block = 0; int ret, xact = 0; - hwpec = isich4 && (flags & I2C_CLIENT_PEC) + hwpec = (i801_features & FEATURE_SMBUS_PEC) && (flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK && size != I2C_SMBUS_I2C_BLOCK_DATA; @@ -462,12 +492,23 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, xact = I801_WORD_DATA; break; case I2C_SMBUS_BLOCK_DATA: - case I2C_SMBUS_I2C_BLOCK_DATA: outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), SMBHSTADD); outb_p(command, SMBHSTCMD); block = 1; break; + case I2C_SMBUS_I2C_BLOCK_DATA: + /* NB: page 240 of ICH5 datasheet shows that the R/#W + * bit should be cleared here, even when reading */ + outb_p((addr & 0x7f) << 1, SMBHSTADD); + if (read_write == I2C_SMBUS_READ) { + /* NB: page 240 of ICH5 datasheet also shows + * that DATA1 is the cmd field when reading */ + outb_p(command, SMBHSTDAT1); + } else + outb_p(command, SMBHSTCMD); + block = 1; + break; case I2C_SMBUS_PROC_CALL: default: dev_err(&I801_dev->dev, "Unsupported transaction %d\n", size); @@ -487,7 +528,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, /* Some BIOSes don't like it when PEC is enabled at reboot or resume time, so we forcibly disable it after every transaction. Turn off E32B for the same reason. */ - if (hwpec) + if (hwpec || block) outb_p(inb_p(SMBAUXCTL) & ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), SMBAUXCTL); @@ -514,9 +555,11 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, static u32 i801_func(struct i2c_adapter *adapter) { return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | - I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK - | (isich4 ? I2C_FUNC_SMBUS_PEC : 0); + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | + I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK | + ((i801_features & FEATURE_SMBUS_PEC) ? I2C_FUNC_SMBUS_PEC : 0) | + ((i801_features & FEATURE_I2C_BLOCK_READ) ? + I2C_FUNC_SMBUS_READ_I2C_BLOCK : 0); } static const struct i2c_algorithm smbus_algorithm = { @@ -556,8 +599,8 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id int err; I801_dev = dev; + i801_features = 0; switch (dev->device) { - case PCI_DEVICE_ID_INTEL_82801DB_3: case PCI_DEVICE_ID_INTEL_82801EB_3: case PCI_DEVICE_ID_INTEL_ESB_4: case PCI_DEVICE_ID_INTEL_ICH6_16: @@ -565,11 +608,13 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id case PCI_DEVICE_ID_INTEL_ESB2_17: case PCI_DEVICE_ID_INTEL_ICH8_5: case PCI_DEVICE_ID_INTEL_ICH9_6: + i801_features |= FEATURE_I2C_BLOCK_READ; + /* fall through */ + case PCI_DEVICE_ID_INTEL_82801DB_3: case PCI_DEVICE_ID_INTEL_TOLAPAI_1: - isich4 = 1; + i801_features |= FEATURE_SMBUS_PEC; + i801_features |= FEATURE_BLOCK_BUFFER; break; - default: - isich4 = 0; } err = pci_enable_device(dev); @@ -610,6 +655,11 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id else dev_dbg(&dev->dev, "SMBus using PCI Interrupt\n"); + /* Clear special mode bits */ + if (i801_features & (FEATURE_SMBUS_PEC | FEATURE_BLOCK_BUFFER)) + outb_p(inb_p(SMBAUXCTL) & ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), + SMBAUXCTL); + /* set up the sysfs linkage to our parent device */ i801_adapter.dev.parent = &dev->dev; @@ -678,9 +728,8 @@ static void __exit i2c_i801_exit(void) pci_unregister_driver(&i801_driver); } -MODULE_AUTHOR ("Frodo Looijaard <frodol@dds.nl>, " - "Philip Edelbrock <phil@netroedge.com>, " - "and Mark D. Studebaker <mdsxyz123@yahoo.com>"); +MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>, " + "Jean Delvare <khali@linux-fr.org>"); MODULE_DESCRIPTION("I801 SMBus driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c index 9b43ff7270d..7c7eb0cfece 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.c +++ b/drivers/i2c/busses/i2c-ibm_iic.c @@ -6,7 +6,7 @@ * Copyright (c) 2003, 2004 Zultys Technologies. * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> * - * Based on original work by + * Based on original work by * Ian DaSilva <idasilva@mvista.com> * Armin Kuster <akuster@mvista.com> * Matt Porter <mporter@mvista.com> @@ -86,8 +86,8 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev) KERN_DEBUG " sts = 0x%02x, extsts = 0x%02x\n" KERN_DEBUG " clkdiv = 0x%02x, xfrcnt = 0x%02x\n" KERN_DEBUG " xtcntlss = 0x%02x, directcntl = 0x%02x\n", - in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts), - in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt), + in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts), + in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt), in_8(&iic->xtcntlss), in_8(&iic->directcntl)); } # define DUMP_REGS(h,dev) dump_iic_regs((h),(dev)) @@ -125,7 +125,7 @@ static inline void iic_interrupt_mode(struct ibm_iic_private* dev, int enable) { out_8(&dev->vaddr->intmsk, enable ? INTRMSK_EIMTC : 0); } - + /* * Initialize IIC interface. */ @@ -134,7 +134,7 @@ static void iic_dev_init(struct ibm_iic_private* dev) volatile struct iic_regs __iomem *iic = dev->vaddr; DBG("%d: init\n", dev->idx); - + /* Clear master address */ out_8(&iic->lmadr, 0); out_8(&iic->hmadr, 0); @@ -160,7 +160,7 @@ static void iic_dev_init(struct ibm_iic_private* dev) /* Clear control register */ out_8(&iic->cntl, 0); - + /* Enable interrupts if possible */ iic_interrupt_mode(dev, dev->irq >= 0); @@ -171,7 +171,7 @@ static void iic_dev_init(struct ibm_iic_private* dev) DUMP_REGS("iic_init", dev); } -/* +/* * Reset IIC interface */ static void iic_dev_reset(struct ibm_iic_private* dev) @@ -179,42 +179,42 @@ static void iic_dev_reset(struct ibm_iic_private* dev) volatile struct iic_regs __iomem *iic = dev->vaddr; int i; u8 dc; - + DBG("%d: soft reset\n", dev->idx); DUMP_REGS("reset", dev); - + /* Place chip in the reset state */ out_8(&iic->xtcntlss, XTCNTLSS_SRST); - + /* Check if bus is free */ - dc = in_8(&iic->directcntl); + dc = in_8(&iic->directcntl); if (!DIRCTNL_FREE(dc)){ DBG("%d: trying to regain bus control\n", dev->idx); - + /* Try to set bus free state */ - out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC); - + out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC); + /* Wait until we regain bus control */ for (i = 0; i < 100; ++i){ dc = in_8(&iic->directcntl); if (DIRCTNL_FREE(dc)) break; - + /* Toggle SCL line */ dc ^= DIRCNTL_SCC; out_8(&iic->directcntl, dc); udelay(10); dc ^= DIRCNTL_SCC; out_8(&iic->directcntl, dc); - + /* be nice */ cond_resched(); } } - + /* Remove reset */ out_8(&iic->xtcntlss, 0); - + /* Reinitialize interface */ iic_dev_init(dev); } @@ -324,14 +324,14 @@ static irqreturn_t iic_handler(int irq, void *dev_id) { struct ibm_iic_private* dev = (struct ibm_iic_private*)dev_id; volatile struct iic_regs __iomem *iic = dev->vaddr; - - DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n", + + DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n", dev->idx, in_8(&iic->sts), in_8(&iic->extsts)); - + /* Acknowledge IRQ and wakeup iic_wait_for_tc */ out_8(&iic->sts, STS_IRQA | STS_SCMP); wake_up_interruptible(&dev->wq); - + return IRQ_HANDLED; } @@ -341,19 +341,19 @@ static irqreturn_t iic_handler(int irq, void *dev_id) */ static int iic_xfer_result(struct ibm_iic_private* dev) { - volatile struct iic_regs __iomem *iic = dev->vaddr; - + volatile struct iic_regs __iomem *iic = dev->vaddr; + if (unlikely(in_8(&iic->sts) & STS_ERR)){ - DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx, + DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx, in_8(&iic->extsts)); - + /* Clear errors and possible pending IRQs */ - out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD | + out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD | EXTSTS_LA | EXTSTS_ICT | EXTSTS_XFRA); - + /* Flush master data buffer */ out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB); - + /* Is bus free? * If error happened during combined xfer * IIC interface is usually stuck in some strange @@ -376,11 +376,11 @@ static void iic_abort_xfer(struct ibm_iic_private* dev) { volatile struct iic_regs __iomem *iic = dev->vaddr; unsigned long x; - + DBG("%d: iic_abort_xfer\n", dev->idx); - + out_8(&iic->cntl, CNTL_HMT); - + /* * Wait for the abort command to complete. * It's not worth to be optimized, just poll (timeout >= 1 tick) @@ -405,13 +405,13 @@ static void iic_abort_xfer(struct ibm_iic_private* dev) * Returns the number of transferred bytes or error (<0) */ static int iic_wait_for_tc(struct ibm_iic_private* dev){ - + volatile struct iic_regs __iomem *iic = dev->vaddr; int ret = 0; - + if (dev->irq >= 0){ /* Interrupt mode */ - ret = wait_event_interruptible_timeout(dev->wq, + ret = wait_event_interruptible_timeout(dev->wq, !(in_8(&iic->sts) & STS_PT), dev->adap.timeout * HZ); if (unlikely(ret < 0)) @@ -424,37 +424,37 @@ static int iic_wait_for_tc(struct ibm_iic_private* dev){ else { /* Polling mode */ unsigned long x = jiffies + dev->adap.timeout * HZ; - + while (in_8(&iic->sts) & STS_PT){ if (unlikely(time_after(jiffies, x))){ DBG("%d: poll timeout\n", dev->idx); ret = -ETIMEDOUT; break; } - + if (unlikely(signal_pending(current))){ DBG("%d: poll interrupted\n", dev->idx); ret = -ERESTARTSYS; break; } schedule(); - } + } } - + if (unlikely(ret < 0)) iic_abort_xfer(dev); else ret = iic_xfer_result(dev); - + DBG2("%d: iic_wait_for_tc -> %d\n", dev->idx, ret); - + return ret; } /* * Low level master transfer routine */ -static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm, +static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm, int combined_xfer) { volatile struct iic_regs __iomem *iic = dev->vaddr; @@ -465,48 +465,48 @@ static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm, u8 cntl = (in_8(&iic->cntl) & CNTL_AMD) | CNTL_PT; if (pm->flags & I2C_M_RD) cntl |= CNTL_RW; - + loops = (len + 3) / 4; for (i = 0; i < loops; ++i, len -= 4){ int count = len > 4 ? 4 : len; u8 cmd = cntl | ((count - 1) << CNTL_TCT_SHIFT); - + if (!(cntl & CNTL_RW)) for (j = 0; j < count; ++j) out_8((void __iomem *)&iic->mdbuf, *buf++); - + if (i < loops - 1) cmd |= CNTL_CHT; else if (combined_xfer) cmd |= CNTL_RPST; - + DBG2("%d: xfer_bytes, %d, CNTL = 0x%02x\n", dev->idx, count, cmd); - + /* Start transfer */ out_8(&iic->cntl, cmd); - + /* Wait for completion */ ret = iic_wait_for_tc(dev); if (unlikely(ret < 0)) break; else if (unlikely(ret != count)){ - DBG("%d: xfer_bytes, requested %d, transfered %d\n", + DBG("%d: xfer_bytes, requested %d, transfered %d\n", dev->idx, count, ret); - + /* If it's not a last part of xfer, abort it */ if (combined_xfer || (i < loops - 1)) iic_abort_xfer(dev); - + ret = -EREMOTEIO; - break; + break; } - + if (cntl & CNTL_RW) for (j = 0; j < count; ++j) *buf++ = in_8((void __iomem *)&iic->mdbuf); } - + return ret > 0 ? 0 : ret; } @@ -517,10 +517,10 @@ static inline void iic_address(struct ibm_iic_private* dev, struct i2c_msg* msg) { volatile struct iic_regs __iomem *iic = dev->vaddr; u16 addr = msg->addr; - - DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx, + + DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx, addr, msg->flags & I2C_M_TEN ? 10 : 7); - + if (msg->flags & I2C_M_TEN){ out_8(&iic->cntl, CNTL_AMD); out_8(&iic->lmadr, addr); @@ -537,15 +537,15 @@ static inline int iic_invalid_address(const struct i2c_msg* p) return (p->addr > 0x3ff) || (!(p->flags & I2C_M_TEN) && (p->addr > 0x7f)); } -static inline int iic_address_neq(const struct i2c_msg* p1, +static inline int iic_address_neq(const struct i2c_msg* p1, const struct i2c_msg* p2) { - return (p1->addr != p2->addr) + return (p1->addr != p2->addr) || ((p1->flags & I2C_M_TEN) != (p2->flags & I2C_M_TEN)); -} +} /* - * Generic master transfer entrypoint. + * Generic master transfer entrypoint. * Returns the number of processed messages or error (<0) */ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) @@ -553,20 +553,20 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) struct ibm_iic_private* dev = (struct ibm_iic_private*)(i2c_get_adapdata(adap)); volatile struct iic_regs __iomem *iic = dev->vaddr; int i, ret = 0; - + DBG2("%d: iic_xfer, %d msg(s)\n", dev->idx, num); - + if (!num) return 0; - + /* Check the sanity of the passed messages. * Uhh, generic i2c layer is more suitable place for such code... */ if (unlikely(iic_invalid_address(&msgs[0]))){ - DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx, + DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx, msgs[0].addr, msgs[0].flags & I2C_M_TEN ? 10 : 7); return -EINVAL; - } + } for (i = 0; i < num; ++i){ if (unlikely(msgs[i].len <= 0)){ if (num == 1 && !msgs[0].len){ @@ -576,7 +576,7 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) */ return iic_smbus_quick(dev, &msgs[0]); } - DBG("%d: invalid len %d in msg[%d]\n", dev->idx, + DBG("%d: invalid len %d in msg[%d]\n", dev->idx, msgs[i].len, i); return -EINVAL; } @@ -585,34 +585,34 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) return -EINVAL; } } - + /* Check bus state */ if (unlikely((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE)){ DBG("%d: iic_xfer, bus is not free\n", dev->idx); - + /* Usually it means something serious has happend. * We *cannot* have unfinished previous transfer * so it doesn't make any sense to try to stop it. - * Probably we were not able to recover from the + * Probably we were not able to recover from the * previous error. * The only *reasonable* thing I can think of here * is soft reset. --ebs */ iic_dev_reset(dev); - + if ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){ DBG("%d: iic_xfer, bus is still not free\n", dev->idx); return -EREMOTEIO; } - } + } else { /* Flush master data buffer (just in case) */ out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB); } - + /* Load slave address */ iic_address(dev, &msgs[0]); - + /* Do real transfer */ for (i = 0; i < num && !ret; ++i) ret = iic_xfer_bytes(dev, &msgs[i], i < num - 1); @@ -648,7 +648,7 @@ static inline u8 iic_clckdiv(unsigned int opb) /* Convert to MHz */ opb /= 1000000; - + if (opb < 20 || opb > 150){ printk(KERN_CRIT "ibm-iic: invalid OPB clock frequency %u MHz\n", opb); @@ -666,7 +666,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){ struct i2c_adapter* adap; struct ocp_func_iic_data* iic_data = ocp->def->additions; int ret; - + if (!iic_data) printk(KERN_WARNING"ibm-iic%d: missing additional data!\n", ocp->def->index); @@ -679,7 +679,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){ dev->idx = ocp->def->index; ocp_set_drvdata(ocp, dev); - + if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs), "ibm_iic")) { ret = -EBUSY; @@ -692,7 +692,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){ ret = -ENXIO; goto fail2; } - + init_waitqueue_head(&dev->wq); dev->irq = iic_force_poll ? -1 : ocp->def->irq; @@ -702,29 +702,29 @@ static int __devinit iic_probe(struct ocp_device *ocp){ */ iic_interrupt_mode(dev, 0); if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){ - printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n", + printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n", dev->idx, dev->irq); - /* Fallback to the polling mode */ + /* Fallback to the polling mode */ dev->irq = -1; } } - + if (dev->irq < 0) - printk(KERN_WARNING "ibm-iic%d: using polling mode\n", + printk(KERN_WARNING "ibm-iic%d: using polling mode\n", dev->idx); - + /* Board specific settings */ dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0); - - /* clckdiv is the same for *all* IIC interfaces, + + /* clckdiv is the same for *all* IIC interfaces, * but I'd rather make a copy than introduce another global. --ebs */ dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq); DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv); - + /* Initialize IIC interface */ iic_dev_init(dev); - + /* Register it with i2c layer */ adap = &dev->adap; adap->dev.parent = &ocp->dev; @@ -736,7 +736,6 @@ static int __devinit iic_probe(struct ocp_device *ocp){ adap->client_register = NULL; adap->client_unregister = NULL; adap->timeout = 1; - adap->retries = 1; /* * If "dev->idx" is negative we consider it as zero. @@ -750,24 +749,24 @@ static int __devinit iic_probe(struct ocp_device *ocp){ dev->idx); goto fail; } - + printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx, dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)"); return 0; -fail: +fail: if (dev->irq >= 0){ iic_interrupt_mode(dev, 0); free_irq(dev->irq, dev); - } + } iounmap(dev->vaddr); -fail2: +fail2: release_mem_region(ocp->def->paddr, sizeof(struct iic_regs)); fail1: ocp_set_drvdata(ocp, NULL); - kfree(dev); + kfree(dev); return ret; } @@ -783,13 +782,13 @@ static void __devexit iic_remove(struct ocp_device *ocp) dev->idx); /* That's *very* bad, just shutdown IRQ ... */ if (dev->irq >= 0){ - iic_interrupt_mode(dev, 0); + iic_interrupt_mode(dev, 0); free_irq(dev->irq, dev); dev->irq = -1; } } else { if (dev->irq >= 0){ - iic_interrupt_mode(dev, 0); + iic_interrupt_mode(dev, 0); free_irq(dev->irq, dev); } iounmap(dev->vaddr); @@ -798,7 +797,7 @@ static void __devexit iic_remove(struct ocp_device *ocp) } } -static struct ocp_device_id ibm_iic_ids[] __devinitdata = +static struct ocp_device_id ibm_iic_ids[] __devinitdata = { { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC }, { .vendor = OCP_VENDOR_INVALID } diff --git a/drivers/i2c/busses/i2c-ibm_iic.h b/drivers/i2c/busses/i2c-ibm_iic.h index 59d7b437f7f..fdaa48292cb 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.h +++ b/drivers/i2c/busses/i2c-ibm_iic.h @@ -2,11 +2,11 @@ * drivers/i2c/busses/i2c-ibm_iic.h * * Support for the IIC peripheral on IBM PPC 4xx - * + * * Copyright (c) 2003 Zultys Technologies. * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> * - * Based on original work by + * Based on original work by * Ian DaSilva <idasilva@mvista.com> * Armin Kuster <akuster@mvista.com> * Matt Porter <mporter@mvista.com> @@ -22,7 +22,7 @@ #ifndef __I2C_IBM_IIC_H_ #define __I2C_IBM_IIC_H_ -#include <linux/i2c.h> +#include <linux/i2c.h> struct iic_regs { u16 mdbuf; @@ -58,7 +58,7 @@ struct ibm_iic_private { #define CNTL_TCT_MASK 0x30 #define CNTL_TCT_SHIFT 4 #define CNTL_RPST 0x08 -#define CNTL_CHT 0x04 +#define CNTL_CHT 0x04 #define CNTL_RW 0x02 #define CNTL_PT 0x01 diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c index c70146e4c2c..ab41400c883 100644 --- a/drivers/i2c/busses/i2c-iop3xx.c +++ b/drivers/i2c/busses/i2c-iop3xx.c @@ -490,7 +490,6 @@ iop3xx_i2c_probe(struct platform_device *pdev) * Default values...should these come in from board code? */ new_adapter->timeout = 100; - new_adapter->retries = 3; new_adapter->algo = &iop3xx_i2c_algo; init_waitqueue_head(&adapter_data->waitq); diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c deleted file mode 100644 index 069ed7f3b39..00000000000 --- a/drivers/i2c/busses/i2c-ixp4xx.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * drivers/i2c/busses/i2c-ixp4xx.c - * - * Intel's IXP4xx XScale NPU chipsets (IXP420, 421, 422, 425) do not have - * an on board I2C controller but provide 16 GPIO pins that are often - * used to create an I2C bus. This driver provides an i2c_adapter - * interface that plugs in under algo_bit and drives the GPIO pins - * as instructed by the alogorithm driver. - * - * Author: Deepak Saxena <dsaxena@plexity.net> - * - * Copyright (c) 2003-2004 MontaVista Software Inc. - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * - * NOTE: Since different platforms will use different GPIO pins for - * I2C, this driver uses an IXP4xx-specific platform_data - * pointer to pass the GPIO numbers to the driver. This - * allows us to support all the different IXP4xx platforms - * w/o having to put #ifdefs in this driver. - * - * See arch/arm/mach-ixp4xx/ixdp425.c for an example of building a - * device list and filling in the ixp4xx_i2c_pins data structure - * that is passed as the platform_data to this driver. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> - -#include <asm/hardware.h> /* Pick up IXP4xx-specific bits */ - -static inline int ixp4xx_scl_pin(void *data) -{ - return ((struct ixp4xx_i2c_pins*)data)->scl_pin; -} - -static inline int ixp4xx_sda_pin(void *data) -{ - return ((struct ixp4xx_i2c_pins*)data)->sda_pin; -} - -static void ixp4xx_bit_setscl(void *data, int val) -{ - gpio_line_set(ixp4xx_scl_pin(data), 0); - gpio_line_config(ixp4xx_scl_pin(data), - val ? IXP4XX_GPIO_IN : IXP4XX_GPIO_OUT ); -} - -static void ixp4xx_bit_setsda(void *data, int val) -{ - gpio_line_set(ixp4xx_sda_pin(data), 0); - gpio_line_config(ixp4xx_sda_pin(data), - val ? IXP4XX_GPIO_IN : IXP4XX_GPIO_OUT ); -} - -static int ixp4xx_bit_getscl(void *data) -{ - int scl; - - gpio_line_config(ixp4xx_scl_pin(data), IXP4XX_GPIO_IN ); - gpio_line_get(ixp4xx_scl_pin(data), &scl); - - return scl; -} - -static int ixp4xx_bit_getsda(void *data) -{ - int sda; - - gpio_line_config(ixp4xx_sda_pin(data), IXP4XX_GPIO_IN ); - gpio_line_get(ixp4xx_sda_pin(data), &sda); - - return sda; -} - -struct ixp4xx_i2c_data { - struct ixp4xx_i2c_pins *gpio_pins; - struct i2c_adapter adapter; - struct i2c_algo_bit_data algo_data; -}; - -static int ixp4xx_i2c_remove(struct platform_device *plat_dev) -{ - struct ixp4xx_i2c_data *drv_data = platform_get_drvdata(plat_dev); - - platform_set_drvdata(plat_dev, NULL); - - i2c_del_adapter(&drv_data->adapter); - - kfree(drv_data); - - return 0; -} - -static int ixp4xx_i2c_probe(struct platform_device *plat_dev) -{ - int err; - struct ixp4xx_i2c_pins *gpio = plat_dev->dev.platform_data; - struct ixp4xx_i2c_data *drv_data = - kzalloc(sizeof(struct ixp4xx_i2c_data), GFP_KERNEL); - - if(!drv_data) - return -ENOMEM; - - drv_data->gpio_pins = gpio; - - /* - * We could make a lot of these structures static, but - * certain platforms may have multiple GPIO-based I2C - * buses for various device domains, so we need per-device - * algo_data->data. - */ - drv_data->algo_data.data = gpio; - drv_data->algo_data.setsda = ixp4xx_bit_setsda; - drv_data->algo_data.setscl = ixp4xx_bit_setscl; - drv_data->algo_data.getsda = ixp4xx_bit_getsda; - drv_data->algo_data.getscl = ixp4xx_bit_getscl; - drv_data->algo_data.udelay = 10; - drv_data->algo_data.timeout = 100; - - drv_data->adapter.id = I2C_HW_B_IXP4XX; - drv_data->adapter.class = I2C_CLASS_HWMON; - strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name, - sizeof(drv_data->adapter.name)); - drv_data->adapter.algo_data = &drv_data->algo_data; - - drv_data->adapter.dev.parent = &plat_dev->dev; - - gpio_line_config(gpio->scl_pin, IXP4XX_GPIO_IN); - gpio_line_config(gpio->sda_pin, IXP4XX_GPIO_IN); - gpio_line_set(gpio->scl_pin, 0); - gpio_line_set(gpio->sda_pin, 0); - - err = i2c_bit_add_bus(&drv_data->adapter); - if (err) { - printk(KERN_ERR "ERROR: Could not install %s\n", plat_dev->dev.bus_id); - - kfree(drv_data); - return err; - } - - platform_set_drvdata(plat_dev, drv_data); - - return 0; -} - -static struct platform_driver ixp4xx_i2c_driver = { - .probe = ixp4xx_i2c_probe, - .remove = ixp4xx_i2c_remove, - .driver = { - .name = "IXP4XX-I2C", - .owner = THIS_MODULE, - }, -}; - -static int __init ixp4xx_i2c_init(void) -{ - return platform_driver_register(&ixp4xx_i2c_driver); -} - -static void __exit ixp4xx_i2c_exit(void) -{ - platform_driver_unregister(&ixp4xx_i2c_driver); -} - -module_init(ixp4xx_i2c_init); -module_exit(ixp4xx_i2c_exit); - -MODULE_DESCRIPTION("GPIO-based I2C adapter for IXP4xx systems"); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>"); - diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index d8de4ac88b7..bbe787b243b 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -180,7 +180,7 @@ static void mpc_i2c_stop(struct mpc_i2c *i2c) static int mpc_write(struct mpc_i2c *i2c, int target, const u8 * data, int length, int restart) { - int i; + int i, result; unsigned timeout = i2c->adap.timeout; u32 flags = restart ? CCR_RSTA : 0; @@ -192,15 +192,17 @@ static int mpc_write(struct mpc_i2c *i2c, int target, /* Write target byte */ writeb((target << 1), i2c->base + MPC_I2C_DR); - if (i2c_wait(i2c, timeout, 1) < 0) - return -1; + result = i2c_wait(i2c, timeout, 1); + if (result < 0) + return result; for (i = 0; i < length; i++) { /* Write data byte */ writeb(data[i], i2c->base + MPC_I2C_DR); - if (i2c_wait(i2c, timeout, 1) < 0) - return -1; + result = i2c_wait(i2c, timeout, 1); + if (result < 0) + return result; } return 0; @@ -210,7 +212,7 @@ static int mpc_read(struct mpc_i2c *i2c, int target, u8 * data, int length, int restart) { unsigned timeout = i2c->adap.timeout; - int i; + int i, result; u32 flags = restart ? CCR_RSTA : 0; /* Start with MEN */ @@ -221,8 +223,9 @@ static int mpc_read(struct mpc_i2c *i2c, int target, /* Write target address byte - this time with the read flag set */ writeb((target << 1) | 1, i2c->base + MPC_I2C_DR); - if (i2c_wait(i2c, timeout, 1) < 0) - return -1; + result = i2c_wait(i2c, timeout, 1); + if (result < 0) + return result; if (length) { if (length == 1) @@ -234,8 +237,9 @@ static int mpc_read(struct mpc_i2c *i2c, int target, } for (i = 0; i < length; i++) { - if (i2c_wait(i2c, timeout, 0) < 0) - return -1; + result = i2c_wait(i2c, timeout, 0); + if (result < 0) + return result; /* Generate txack on next to last byte */ if (i == length - 2) @@ -309,7 +313,6 @@ static struct i2c_adapter mpc_ops = { .algo = &mpc_algo, .class = I2C_CLASS_HWMON, .timeout = 1, - .retries = 1 }; static int fsl_i2c_probe(struct platform_device *pdev) @@ -321,9 +324,9 @@ static int fsl_i2c_probe(struct platform_device *pdev) pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data; - if (!(i2c = kzalloc(sizeof(*i2c), GFP_KERNEL))) { + i2c = kzalloc(sizeof(*i2c), GFP_KERNEL); + if (!i2c) return -ENOMEM; - } i2c->irq = platform_get_irq(pdev, 0); if (i2c->irq < 0) { diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c index 1bf590c7416..3dac920e53e 100644 --- a/drivers/i2c/busses/i2c-nforce2.c +++ b/drivers/i2c/busses/i2c-nforce2.c @@ -351,6 +351,7 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_ pci_set_drvdata(dev, smbuses); switch(dev->device) { + case PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS: case PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SMBUS: case PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SMBUS: smbuses[0].blockops = 1; diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index f2552b19ea6..da6639707ea 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -362,8 +362,6 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) omap_i2c_enable_clocks(dev); - /* REVISIT: initialize and use adap->retries. This is an optional - * feature */ if ((r = omap_i2c_wait_for_bb(dev)) < 0) goto out; diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index ca18e0be490..1603c81e39d 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -368,6 +368,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev, smbus->adapter.class = I2C_CLASS_HWMON; smbus->adapter.algo = &smbus_algorithm; smbus->adapter.algo_data = smbus; + smbus->adapter.nr = PCI_FUNC(dev->devfn); /* set up the sysfs linkage to our parent device */ smbus->adapter.dev.parent = &dev->dev; @@ -375,7 +376,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev, reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | (CLK_100K_DIV & CTL_CLK_M))); - error = i2c_add_adapter(&smbus->adapter); + error = i2c_add_numbered_adapter(&smbus->adapter); if (error) goto out_release_region; diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index 167e4137ee2..9bbe96cef71 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -121,10 +121,6 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, { unsigned char temp; - /* match up the function */ - if (PCI_FUNC(PIIX4_dev->devfn) != id->driver_data) - return -ENODEV; - dev_info(&PIIX4_dev->dev, "Found %s device\n", pci_name(PIIX4_dev)); /* Don't access SMBus on IBM systems which get corrupted eeproms */ @@ -389,28 +385,21 @@ static struct i2c_adapter piix4_adapter = { }; static struct pci_device_id piix4_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3), - .driver_data = 3 }, - { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_SMBUS), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB), - .driver_data = 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3), - .driver_data = 3 }, - { PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3), - .driver_data = 0 }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3) }, + { PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_OSB4) }, + { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_CSB5) }, + { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_CSB6) }, + { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, + PCI_DEVICE_ID_SERVERWORKS_HT1000SB) }, { 0, } }; diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index 6426a61f8d4..2598d29fd7a 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -65,6 +65,7 @@ struct pxa_i2c { unsigned long iosize; int irq; + int use_pio; }; #define _IBMR(i2c) ((i2c)->reg_base + 0) @@ -163,6 +164,7 @@ static void i2c_pxa_show_state(struct pxa_i2c *i2c, int lno, const char *fname) #define eedbg(lvl, x...) do { if ((lvl) < 1) { printk(KERN_DEBUG "" x); } } while(0) static void i2c_pxa_master_complete(struct pxa_i2c *i2c, int ret); +static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id); static void i2c_pxa_scream_blue_murder(struct pxa_i2c *i2c, const char *why) { @@ -554,6 +556,71 @@ static inline void i2c_pxa_stop_message(struct pxa_i2c *i2c) writel(icr, _ICR(i2c)); } +static int i2c_pxa_pio_set_master(struct pxa_i2c *i2c) +{ + /* make timeout the same as for interrupt based functions */ + long timeout = 2 * DEF_TIMEOUT; + + /* + * Wait for the bus to become free. + */ + while (timeout-- && readl(_ISR(i2c)) & (ISR_IBB | ISR_UB)) { + udelay(1000); + show_state(i2c); + } + + if (timeout <= 0) { + show_state(i2c); + dev_err(&i2c->adap.dev, + "i2c_pxa: timeout waiting for bus free\n"); + return I2C_RETRY; + } + + /* + * Set master mode. + */ + writel(readl(_ICR(i2c)) | ICR_SCLE, _ICR(i2c)); + + return 0; +} + +static int i2c_pxa_do_pio_xfer(struct pxa_i2c *i2c, + struct i2c_msg *msg, int num) +{ + unsigned long timeout = 500000; /* 5 seconds */ + int ret = 0; + + ret = i2c_pxa_pio_set_master(i2c); + if (ret) + goto out; + + i2c->msg = msg; + i2c->msg_num = num; + i2c->msg_idx = 0; + i2c->msg_ptr = 0; + i2c->irqlogidx = 0; + + i2c_pxa_start_message(i2c); + + while (timeout-- && i2c->msg_num > 0) { + i2c_pxa_handler(0, i2c); + udelay(10); + } + + i2c_pxa_stop_message(i2c); + + /* + * We place the return code in i2c->msg_idx. + */ + ret = i2c->msg_idx; + +out: + if (timeout == 0) + i2c_pxa_scream_blue_murder(i2c, "timeout"); + + return ret; +} + /* * We are protected by the adapter bus mutex. */ @@ -610,6 +677,35 @@ static int i2c_pxa_do_xfer(struct pxa_i2c *i2c, struct i2c_msg *msg, int num) return ret; } +static int i2c_pxa_pio_xfer(struct i2c_adapter *adap, + struct i2c_msg msgs[], int num) +{ + struct pxa_i2c *i2c = adap->algo_data; + int ret, i; + + /* If the I2C controller is disabled we need to reset it + (probably due to a suspend/resume destroying state). We do + this here as we can then avoid worrying about resuming the + controller before its users. */ + if (!(readl(_ICR(i2c)) & ICR_IUE)) + i2c_pxa_reset(i2c); + + for (i = adap->retries; i >= 0; i--) { + ret = i2c_pxa_do_pio_xfer(i2c, msgs, num); + if (ret != I2C_RETRY) + goto out; + + if (i2c_debug) + dev_dbg(&adap->dev, "Retrying transmission\n"); + udelay(100); + } + i2c_pxa_scream_blue_murder(i2c, "exhausted retries"); + ret = -EREMOTEIO; + out: + i2c_pxa_set_slave(i2c, ret); + return ret; +} + /* * i2c_pxa_master_complete - complete the message and wake up. */ @@ -621,7 +717,8 @@ static void i2c_pxa_master_complete(struct pxa_i2c *i2c, int ret) i2c->msg_num = 0; if (ret) i2c->msg_idx = ret; - wake_up(&i2c->wait); + if (!i2c->use_pio) + wake_up(&i2c->wait); } static void i2c_pxa_irq_txempty(struct pxa_i2c *i2c, u32 isr) @@ -840,6 +937,37 @@ static const struct i2c_algorithm i2c_pxa_algorithm = { .functionality = i2c_pxa_functionality, }; +static const struct i2c_algorithm i2c_pxa_pio_algorithm = { + .master_xfer = i2c_pxa_pio_xfer, + .functionality = i2c_pxa_functionality, +}; + +static void i2c_pxa_enable(struct platform_device *dev) +{ + if (cpu_is_pxa27x()) { + switch (dev->id) { + case 0: + pxa_gpio_mode(GPIO117_I2CSCL_MD); + pxa_gpio_mode(GPIO118_I2CSDA_MD); + break; + case 1: + local_irq_disable(); + PCFR |= PCFR_PI2CEN; + local_irq_enable(); + break; + } + } +} + +static void i2c_pxa_disable(struct platform_device *dev) +{ + if (cpu_is_pxa27x() && dev->id == 1) { + local_irq_disable(); + PCFR &= ~PCFR_PI2CEN; + local_irq_enable(); + } +} + #define res_len(r) ((r)->end - (r)->start + 1) static int i2c_pxa_probe(struct platform_device *dev) { @@ -864,7 +992,6 @@ static int i2c_pxa_probe(struct platform_device *dev) } i2c->adap.owner = THIS_MODULE; - i2c->adap.algo = &i2c_pxa_algorithm; i2c->adap.retries = 5; spin_lock_init(&i2c->lock); @@ -899,34 +1026,28 @@ static int i2c_pxa_probe(struct platform_device *dev) #endif clk_enable(i2c->clk); -#ifdef CONFIG_PXA27x - switch (dev->id) { - case 0: - pxa_gpio_mode(GPIO117_I2CSCL_MD); - pxa_gpio_mode(GPIO118_I2CSDA_MD); - break; - case 1: - local_irq_disable(); - PCFR |= PCFR_PI2CEN; - local_irq_enable(); - } -#endif + i2c_pxa_enable(dev); - ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED, - i2c->adap.name, i2c); - if (ret) - goto ereqirq; + if (plat) { + i2c->adap.class = plat->class; + i2c->use_pio = plat->use_pio; + } + if (i2c->use_pio) { + i2c->adap.algo = &i2c_pxa_pio_algorithm; + } else { + i2c->adap.algo = &i2c_pxa_algorithm; + ret = request_irq(irq, i2c_pxa_handler, IRQF_DISABLED, + i2c->adap.name, i2c); + if (ret) + goto ereqirq; + } i2c_pxa_reset(i2c); i2c->adap.algo_data = i2c; i2c->adap.dev.parent = &dev->dev; - if (plat) { - i2c->adap.class = plat->class; - } - /* * If "dev->id" is negative we consider it as zero. * The reason to do so is to avoid sysfs names that only make @@ -952,17 +1073,11 @@ static int i2c_pxa_probe(struct platform_device *dev) return 0; eadapt: - free_irq(irq, i2c); + if (!i2c->use_pio) + free_irq(irq, i2c); ereqirq: clk_disable(i2c->clk); - -#ifdef CONFIG_PXA27x - if (dev->id == 1) { - local_irq_disable(); - PCFR &= ~PCFR_PI2CEN; - local_irq_enable(); - } -#endif + i2c_pxa_disable(dev); eremap: clk_put(i2c->clk); eclk: @@ -979,18 +1094,12 @@ static int i2c_pxa_remove(struct platform_device *dev) platform_set_drvdata(dev, NULL); i2c_del_adapter(&i2c->adap); - free_irq(i2c->irq, i2c); + if (!i2c->use_pio) + free_irq(i2c->irq, i2c); clk_disable(i2c->clk); clk_put(i2c->clk); - -#ifdef CONFIG_PXA27x - if (dev->id == 1) { - local_irq_disable(); - PCFR &= ~PCFR_PI2CEN; - local_irq_enable(); - } -#endif + i2c_pxa_disable(dev); release_mem_region(i2c->iobase, i2c->iosize); kfree(i2c); diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index 503a134ec80..8fbbdb4c2f3 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c @@ -36,14 +36,6 @@ struct i2c_algo_sibyte_data { /* ----- global defines ----------------------------------------------- */ #define SMB_CSR(a,r) ((long)(a->reg_base + r)) -/* ----- global variables --------------------------------------------- */ - -/* module parameters: - */ -static int bit_scan; /* have a look at what's hanging 'round */ -module_param(bit_scan, int, 0); -MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus"); - static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, unsigned short flags, char read_write, @@ -140,9 +132,8 @@ static const struct i2c_algorithm i2c_sibyte_algo = { /* * registering functions to load algorithms at runtime */ -int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) +int __init i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) { - int i; struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; /* register new adapter to i2c module... */ @@ -152,24 +143,6 @@ int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); - /* scan bus */ - if (bit_scan) { - union i2c_smbus_data data; - int rc; - printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n", - i2c_adap->name); - for (i = 0x00; i < 0x7f; i++) { - /* XXXKW is this a realistic probe? */ - rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0, - I2C_SMBUS_BYTE_DATA, &data); - if (!rc) { - printk("(%02x)",i); - } else - printk("."); - } - printk("\n"); - } - return i2c_add_adapter(i2c_adap); } diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c index 84df29da1dd..c2a9f8c94f5 100644 --- a/drivers/i2c/busses/i2c-stub.c +++ b/drivers/i2c/busses/i2c-stub.c @@ -1,8 +1,8 @@ /* - i2c-stub.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring + i2c-stub.c - I2C/SMBus chip emulator Copyright (c) 2004 Mark M. Hoffman <mhoffman@lightlink.com> + Copyright (C) 2007 Jean Delvare <khali@linux-fr.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -37,8 +37,8 @@ MODULE_PARM_DESC(chip_addr, struct stub_chip { u8 pointer; - u8 bytes[256]; - u16 words[256]; + u16 words[256]; /* Byte operations use the LSB as per SMBus + specification */ }; static struct stub_chip *stub_chips; @@ -75,7 +75,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, "wrote 0x%02x.\n", addr, command); } else { - data->byte = chip->bytes[chip->pointer++]; + data->byte = chip->words[chip->pointer++] & 0xff; dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, " "read 0x%02x.\n", addr, data->byte); @@ -86,12 +86,13 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, case I2C_SMBUS_BYTE_DATA: if (read_write == I2C_SMBUS_WRITE) { - chip->bytes[command] = data->byte; + chip->words[command] &= 0xff00; + chip->words[command] |= data->byte; dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, " "wrote 0x%02x at 0x%02x.\n", addr, data->byte, command); } else { - data->byte = chip->bytes[command]; + data->byte = chip->words[command] & 0xff; dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, " "read 0x%02x at 0x%02x.\n", addr, data->byte, command); diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c index c9ce77f13c0..77b13d027f8 100644 --- a/drivers/i2c/busses/i2c-viapro.c +++ b/drivers/i2c/busses/i2c-viapro.c @@ -4,7 +4,7 @@ Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Kyösti Mälkki <kmalkki@cc.hut.fi>, Mark D. Studebaker <mdsxyz123@yahoo.com> - Copyright (C) 2005 - 2007 Jean Delvare <khali@linux-fr.org> + Copyright (C) 2005 - 2008 Jean Delvare <khali@linux-fr.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -35,6 +35,7 @@ VT8235 0x3177 yes VT8237R 0x3227 yes VT8237A 0x3337 yes + VT8237S 0x3372 yes VT8251 0x3287 yes CX700 0x8324 yes @@ -318,6 +319,10 @@ static int __devinit vt596_probe(struct pci_dev *pdev, unsigned char temp; int error = -ENODEV; + /* driver_data might come from user-space, so check it */ + if (id->driver_data & 1 || id->driver_data > 0xff) + return -EINVAL; + /* Determine the address of the SMBus areas */ if (force_addr) { vt596_smba = force_addr & 0xfff0; @@ -389,6 +394,7 @@ found: case PCI_DEVICE_ID_VIA_8251: case PCI_DEVICE_ID_VIA_8237: case PCI_DEVICE_ID_VIA_8237A: + case PCI_DEVICE_ID_VIA_8237S: case PCI_DEVICE_ID_VIA_8235: case PCI_DEVICE_ID_VIA_8233A: case PCI_DEVICE_ID_VIA_8233_0: @@ -440,6 +446,8 @@ static struct pci_device_id vt596_ids[] = { .driver_data = SMBBA3 }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A), .driver_data = SMBBA3 }, + { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237S), + .driver_data = SMBBA3 }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4), .driver_data = SMBBA1 }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8251), @@ -455,6 +463,7 @@ static struct pci_driver vt596_driver = { .name = "vt596_smbus", .id_table = vt596_ids, .probe = vt596_probe, + .dynids.use_driver_data = 1, }; static int __init i2c_vt596_init(void) diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig index 2e1c24f671c..bd7082c2443 100644 --- a/drivers/i2c/chips/Kconfig +++ b/drivers/i2c/chips/Kconfig @@ -4,32 +4,6 @@ menu "Miscellaneous I2C Chip support" -config SENSORS_DS1337 - tristate "Dallas DS1337 and DS1339 Real Time Clock (DEPRECATED)" - depends on EXPERIMENTAL - help - If you say yes here you get support for Dallas Semiconductor - DS1337 and DS1339 real-time clock chips. - - This driver can also be built as a module. If so, the module - will be called ds1337. - - This driver is deprecated and will be dropped soon. Use - rtc-ds1307 instead. - -config SENSORS_DS1374 - tristate "Dallas DS1374 Real Time Clock (DEPRECATED)" - depends on EXPERIMENTAL - help - If you say yes here you get support for Dallas Semiconductor - DS1374 real-time clock chips. - - This driver can also be built as a module. If so, the module - will be called ds1374. - - This driver is deprecated and will be dropped soon. Use - rtc-ds1374 instead. - config DS1682 tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm" depends on EXPERIMENTAL @@ -57,7 +31,7 @@ config SENSORS_PCF8574 default n help If you say yes here you get support for Philips PCF8574 and - PCF8574A chips. + PCF8574A chips. These chips are 8-bit I/O expanders for the I2C bus. This driver can also be built as a module. If so, the module will be called pcf8574. @@ -65,6 +39,20 @@ config SENSORS_PCF8574 These devices are hard to detect and rarely found on mainstream hardware. If unsure, say N. +config PCF8575 + tristate "Philips PCF8575" + default n + help + If you say yes here you get support for Philips PCF8575 chip. + This chip is a 16-bit I/O expander for the I2C bus. Several other + chip manufacturers sell equivalent chips, e.g. Texas Instruments. + + This driver can also be built as a module. If so, the module + will be called pcf8575. + + This device is hard to detect and is rarely found on mainstream + hardware. If unsure, say N. + config SENSORS_PCA9539 tristate "Philips PCA9539 16-bit I/O port" depends on EXPERIMENTAL @@ -100,12 +88,8 @@ config ISP1301_OMAP This driver can also be built as a module. If so, the module will be called isp1301_omap. -# NOTE: This isn't really OMAP-specific, except for the current -# interface location in <include/asm-arm/arch-omap/tps65010.h> -# and having mostly OMAP-specific board support config TPS65010 tristate "TPS6501x Power Management chips" - depends on ARCH_OMAP default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK help If you say yes here you get support for the TPS6501x series of @@ -116,18 +100,6 @@ config TPS65010 This driver can also be built as a module. If so, the module will be called tps65010. -config SENSORS_M41T00 - tristate "ST M41T00 RTC chip (DEPRECATED)" - depends on PPC32 - help - If you say yes here you get support for the ST M41T00 RTC chip. - - This driver can also be built as a module. If so, the module - will be called m41t00. - - This driver is deprecated and will be dropped soon. Use - rtc-ds1307 or rtc-m41t80 instead. - config SENSORS_MAX6875 tristate "Maxim MAX6875 Power supply supervisor" depends on EXPERIMENTAL diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile index ca924e10595..501f00cea78 100644 --- a/drivers/i2c/chips/Makefile +++ b/drivers/i2c/chips/Makefile @@ -2,14 +2,12 @@ # Makefile for miscellaneous I2C chip drivers. # -obj-$(CONFIG_SENSORS_DS1337) += ds1337.o -obj-$(CONFIG_SENSORS_DS1374) += ds1374.o obj-$(CONFIG_DS1682) += ds1682.o obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o obj-$(CONFIG_SENSORS_MAX6875) += max6875.o -obj-$(CONFIG_SENSORS_M41T00) += m41t00.o obj-$(CONFIG_SENSORS_PCA9539) += pca9539.o obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o +obj-$(CONFIG_PCF8575) += pcf8575.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o obj-$(CONFIG_TPS65010) += tps65010.o diff --git a/drivers/i2c/chips/ds1337.c b/drivers/i2c/chips/ds1337.c deleted file mode 100644 index ec17d6b684a..00000000000 --- a/drivers/i2c/chips/ds1337.c +++ /dev/null @@ -1,410 +0,0 @@ -/* - * linux/drivers/i2c/chips/ds1337.c - * - * Copyright (C) 2005 James Chapman <jchapman@katalix.com> - * - * based on linux/drivers/acorn/char/pcf8583.c - * Copyright (C) 2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Driver for Dallas Semiconductor DS1337 and DS1339 real time clock chip - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/string.h> -#include <linux/rtc.h> /* get the user-level API */ -#include <linux/bcd.h> -#include <linux/list.h> - -/* Device registers */ -#define DS1337_REG_HOUR 2 -#define DS1337_REG_DAY 3 -#define DS1337_REG_DATE 4 -#define DS1337_REG_MONTH 5 -#define DS1337_REG_CONTROL 14 -#define DS1337_REG_STATUS 15 - -/* FIXME - how do we export these interface constants? */ -#define DS1337_GET_DATE 0 -#define DS1337_SET_DATE 1 - -/* - * Functions declaration - */ -static unsigned short normal_i2c[] = { 0x68, I2C_CLIENT_END }; - -I2C_CLIENT_INSMOD_1(ds1337); - -static int ds1337_attach_adapter(struct i2c_adapter *adapter); -static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind); -static void ds1337_init_client(struct i2c_client *client); -static int ds1337_detach_client(struct i2c_client *client); -static int ds1337_command(struct i2c_client *client, unsigned int cmd, - void *arg); - -/* - * Driver data (common to all clients) - */ -static struct i2c_driver ds1337_driver = { - .driver = { - .name = "ds1337", - }, - .attach_adapter = ds1337_attach_adapter, - .detach_client = ds1337_detach_client, - .command = ds1337_command, -}; - -/* - * Client data (each client gets its own) - */ -struct ds1337_data { - struct i2c_client client; - struct list_head list; -}; - -/* - * Internal variables - */ -static LIST_HEAD(ds1337_clients); - -static inline int ds1337_read(struct i2c_client *client, u8 reg, u8 *value) -{ - s32 tmp = i2c_smbus_read_byte_data(client, reg); - - if (tmp < 0) - return -EIO; - - *value = tmp; - - return 0; -} - -/* - * Chip access functions - */ -static int ds1337_get_datetime(struct i2c_client *client, struct rtc_time *dt) -{ - int result; - u8 buf[7]; - u8 val; - struct i2c_msg msg[2]; - u8 offs = 0; - - if (!dt) { - dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__); - return -EINVAL; - } - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = 1; - msg[0].buf = &offs; - - msg[1].addr = client->addr; - msg[1].flags = I2C_M_RD; - msg[1].len = sizeof(buf); - msg[1].buf = &buf[0]; - - result = i2c_transfer(client->adapter, msg, 2); - - dev_dbg(&client->dev, "%s: [%d] %02x %02x %02x %02x %02x %02x %02x\n", - __FUNCTION__, result, buf[0], buf[1], buf[2], buf[3], - buf[4], buf[5], buf[6]); - - if (result == 2) { - dt->tm_sec = BCD2BIN(buf[0]); - dt->tm_min = BCD2BIN(buf[1]); - val = buf[2] & 0x3f; - dt->tm_hour = BCD2BIN(val); - dt->tm_wday = BCD2BIN(buf[3]) - 1; - dt->tm_mday = BCD2BIN(buf[4]); - val = buf[5] & 0x7f; - dt->tm_mon = BCD2BIN(val) - 1; - dt->tm_year = BCD2BIN(buf[6]); - if (buf[5] & 0x80) - dt->tm_year += 100; - - dev_dbg(&client->dev, "%s: secs=%d, mins=%d, " - "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", - __FUNCTION__, dt->tm_sec, dt->tm_min, - dt->tm_hour, dt->tm_mday, - dt->tm_mon, dt->tm_year, dt->tm_wday); - - return 0; - } - - dev_err(&client->dev, "error reading data! %d\n", result); - return -EIO; -} - -static int ds1337_set_datetime(struct i2c_client *client, struct rtc_time *dt) -{ - int result; - u8 buf[8]; - u8 val; - struct i2c_msg msg[1]; - - if (!dt) { - dev_dbg(&client->dev, "%s: EINVAL: dt=NULL\n", __FUNCTION__); - return -EINVAL; - } - - dev_dbg(&client->dev, "%s: secs=%d, mins=%d, hours=%d, " - "mday=%d, mon=%d, year=%d, wday=%d\n", __FUNCTION__, - dt->tm_sec, dt->tm_min, dt->tm_hour, - dt->tm_mday, dt->tm_mon, dt->tm_year, dt->tm_wday); - - buf[0] = 0; /* reg offset */ - buf[1] = BIN2BCD(dt->tm_sec); - buf[2] = BIN2BCD(dt->tm_min); - buf[3] = BIN2BCD(dt->tm_hour); - buf[4] = BIN2BCD(dt->tm_wday + 1); - buf[5] = BIN2BCD(dt->tm_mday); - buf[6] = BIN2BCD(dt->tm_mon + 1); - val = dt->tm_year; - if (val >= 100) { - val -= 100; - buf[6] |= (1 << 7); - } - buf[7] = BIN2BCD(val); - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = sizeof(buf); - msg[0].buf = &buf[0]; - - result = i2c_transfer(client->adapter, msg, 1); - if (result == 1) - return 0; - - dev_err(&client->dev, "error writing data! %d\n", result); - return -EIO; -} - -static int ds1337_command(struct i2c_client *client, unsigned int cmd, - void *arg) -{ - dev_dbg(&client->dev, "%s: cmd=%d\n", __FUNCTION__, cmd); - - switch (cmd) { - case DS1337_GET_DATE: - return ds1337_get_datetime(client, arg); - - case DS1337_SET_DATE: - return ds1337_set_datetime(client, arg); - - default: - return -EINVAL; - } -} - -/* - * Public API for access to specific device. Useful for low-level - * RTC access from kernel code. - */ -int ds1337_do_command(int bus, int cmd, void *arg) -{ - struct list_head *walk; - struct list_head *tmp; - struct ds1337_data *data; - - list_for_each_safe(walk, tmp, &ds1337_clients) { - data = list_entry(walk, struct ds1337_data, list); - if (data->client.adapter->nr == bus) - return ds1337_command(&data->client, cmd, arg); - } - - return -ENODEV; -} - -static int ds1337_attach_adapter(struct i2c_adapter *adapter) -{ - return i2c_probe(adapter, &addr_data, ds1337_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int ds1337_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct ds1337_data *data; - int err = 0; - const char *name = ""; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | - I2C_FUNC_I2C)) - goto exit; - - if (!(data = kzalloc(sizeof(struct ds1337_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - INIT_LIST_HEAD(&data->list); - - /* The common I2C client data is placed right before the - * DS1337-specific data. - */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &ds1337_driver; - new_client->flags = 0; - - /* - * Now we do the remaining detection. A negative kind means that - * the driver was loaded with no force parameter (default), so we - * must both detect and identify the chip. A zero kind means that - * the driver was loaded with the force parameter, the detection - * step shall be skipped. A positive kind means that the driver - * was loaded with the force parameter and a given kind of chip is - * requested, so both the detection and the identification steps - * are skipped. - * - * For detection, we read registers that are most likely to cause - * detection failure, i.e. those that have more bits with fixed - * or reserved values. - */ - - /* Default to an DS1337 if forced */ - if (kind == 0) - kind = ds1337; - - if (kind < 0) { /* detection and identification */ - u8 data; - - /* Check that status register bits 6-2 are zero */ - if ((ds1337_read(new_client, DS1337_REG_STATUS, &data) < 0) || - (data & 0x7c)) - goto exit_free; - - /* Check for a valid day register value */ - if ((ds1337_read(new_client, DS1337_REG_DAY, &data) < 0) || - (data == 0) || (data & 0xf8)) - goto exit_free; - - /* Check for a valid date register value */ - if ((ds1337_read(new_client, DS1337_REG_DATE, &data) < 0) || - (data == 0) || (data & 0xc0) || ((data & 0x0f) > 9) || - (data >= 0x32)) - goto exit_free; - - /* Check for a valid month register value */ - if ((ds1337_read(new_client, DS1337_REG_MONTH, &data) < 0) || - (data == 0) || (data & 0x60) || ((data & 0x0f) > 9) || - ((data >= 0x13) && (data <= 0x19))) - goto exit_free; - - /* Check that control register bits 6-5 are zero */ - if ((ds1337_read(new_client, DS1337_REG_CONTROL, &data) < 0) || - (data & 0x60)) - goto exit_free; - - kind = ds1337; - } - - if (kind == ds1337) - name = "ds1337"; - - /* We can fill in the remaining client fields */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); - - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - - /* Initialize the DS1337 chip */ - ds1337_init_client(new_client); - - /* Add client to local list */ - list_add(&data->list, &ds1337_clients); - - return 0; - -exit_free: - kfree(data); -exit: - return err; -} - -static void ds1337_init_client(struct i2c_client *client) -{ - u8 status, control; - - /* On some boards, the RTC isn't configured by boot firmware. - * Handle that case by starting/configuring the RTC now. - */ - status = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS); - control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); - - if ((status & 0x80) || (control & 0x80)) { - /* RTC not running */ - u8 buf[1+16]; /* First byte is interpreted as address */ - struct i2c_msg msg[1]; - - dev_dbg(&client->dev, "%s: RTC not running!\n", __FUNCTION__); - - /* Initialize all, including STATUS and CONTROL to zero */ - memset(buf, 0, sizeof(buf)); - - /* Write valid values in the date/time registers */ - buf[1+DS1337_REG_DAY] = 1; - buf[1+DS1337_REG_DATE] = 1; - buf[1+DS1337_REG_MONTH] = 1; - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = sizeof(buf); - msg[0].buf = &buf[0]; - - i2c_transfer(client->adapter, msg, 1); - } else { - /* Running: ensure that device is set in 24-hour mode */ - s32 val; - - val = i2c_smbus_read_byte_data(client, DS1337_REG_HOUR); - if ((val >= 0) && (val & (1 << 6))) - i2c_smbus_write_byte_data(client, DS1337_REG_HOUR, - val & 0x3f); - } -} - -static int ds1337_detach_client(struct i2c_client *client) -{ - int err; - struct ds1337_data *data = i2c_get_clientdata(client); - - if ((err = i2c_detach_client(client))) - return err; - - list_del(&data->list); - kfree(data); - return 0; -} - -static int __init ds1337_init(void) -{ - return i2c_add_driver(&ds1337_driver); -} - -static void __exit ds1337_exit(void) -{ - i2c_del_driver(&ds1337_driver); -} - -MODULE_AUTHOR("James Chapman <jchapman@katalix.com>"); -MODULE_DESCRIPTION("DS1337 RTC driver"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL_GPL(ds1337_do_command); - -module_init(ds1337_init); -module_exit(ds1337_exit); diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c deleted file mode 100644 index 8a2ff0c114d..00000000000 --- a/drivers/i2c/chips/ds1374.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * drivers/i2c/chips/ds1374.c - * - * I2C client/driver for the Maxim/Dallas DS1374 Real-Time Clock - * - * Author: Randy Vinson <rvinson@mvista.com> - * - * Based on the m41t00.c by Mark Greer <mgreer@mvista.com> - * - * 2005 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ -/* - * This i2c client/driver wedges between the drivers/char/genrtc.c RTC - * interface and the SMBus interface of the i2c subsystem. - * It would be more efficient to use i2c msgs/i2c_transfer directly but, as - * recommened in .../Documentation/i2c/writing-clients section - * "Sending and receiving", using SMBus level communication is preferred. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/i2c.h> -#include <linux/rtc.h> -#include <linux/bcd.h> -#include <linux/mutex.h> -#include <linux/workqueue.h> - -#define DS1374_REG_TOD0 0x00 -#define DS1374_REG_TOD1 0x01 -#define DS1374_REG_TOD2 0x02 -#define DS1374_REG_TOD3 0x03 -#define DS1374_REG_WDALM0 0x04 -#define DS1374_REG_WDALM1 0x05 -#define DS1374_REG_WDALM2 0x06 -#define DS1374_REG_CR 0x07 -#define DS1374_REG_SR 0x08 -#define DS1374_REG_SR_OSF 0x80 -#define DS1374_REG_TCR 0x09 - -#define DS1374_DRV_NAME "ds1374" - -static DEFINE_MUTEX(ds1374_mutex); - -static struct i2c_driver ds1374_driver; -static struct i2c_client *save_client; - -static unsigned short ignore[] = { I2C_CLIENT_END }; -static unsigned short normal_addr[] = { 0x68, I2C_CLIENT_END }; - -static struct i2c_client_address_data addr_data = { - .normal_i2c = normal_addr, - .probe = ignore, - .ignore = ignore, -}; - -static ulong ds1374_read_rtc(void) -{ - ulong time = 0; - int reg = DS1374_REG_WDALM0; - - while (reg--) { - s32 tmp; - if ((tmp = i2c_smbus_read_byte_data(save_client, reg)) < 0) { - dev_warn(&save_client->dev, - "can't read from rtc chip\n"); - return 0; - } - time = (time << 8) | (tmp & 0xff); - } - return time; -} - -static void ds1374_write_rtc(ulong time) -{ - int reg; - - for (reg = DS1374_REG_TOD0; reg < DS1374_REG_WDALM0; reg++) { - if (i2c_smbus_write_byte_data(save_client, reg, time & 0xff) - < 0) { - dev_warn(&save_client->dev, - "can't write to rtc chip\n"); - break; - } - time = time >> 8; - } -} - -static void ds1374_check_rtc_status(void) -{ - s32 tmp; - - tmp = i2c_smbus_read_byte_data(save_client, DS1374_REG_SR); - if (tmp < 0) { - dev_warn(&save_client->dev, - "can't read status from rtc chip\n"); - return; - } - if (tmp & DS1374_REG_SR_OSF) { - dev_warn(&save_client->dev, - "oscillator discontinuity flagged, time unreliable\n"); - tmp &= ~DS1374_REG_SR_OSF; - tmp = i2c_smbus_write_byte_data(save_client, DS1374_REG_SR, - tmp & 0xff); - if (tmp < 0) - dev_warn(&save_client->dev, - "can't clear discontinuity notification\n"); - } -} - -ulong ds1374_get_rtc_time(void) -{ - ulong t1, t2; - int limit = 10; /* arbitrary retry limit */ - - mutex_lock(&ds1374_mutex); - - /* - * Since the reads are being performed one byte at a time using - * the SMBus vs a 4-byte i2c transfer, there is a chance that a - * carry will occur during the read. To detect this, 2 reads are - * performed and compared. - */ - do { - t1 = ds1374_read_rtc(); - t2 = ds1374_read_rtc(); - } while (t1 != t2 && limit--); - - mutex_unlock(&ds1374_mutex); - - if (t1 != t2) { - dev_warn(&save_client->dev, - "can't get consistent time from rtc chip\n"); - t1 = 0; - } - - return t1; -} - -static ulong new_time; - -static void ds1374_set_work(struct work_struct *work) -{ - ulong t1, t2; - int limit = 10; /* arbitrary retry limit */ - - t1 = new_time; - - mutex_lock(&ds1374_mutex); - - /* - * Since the writes are being performed one byte at a time using - * the SMBus vs a 4-byte i2c transfer, there is a chance that a - * carry will occur during the write. To detect this, the write - * value is read back and compared. - */ - do { - ds1374_write_rtc(t1); - t2 = ds1374_read_rtc(); - } while (t1 != t2 && limit--); - - mutex_unlock(&ds1374_mutex); - - if (t1 != t2) - dev_warn(&save_client->dev, - "can't confirm time set from rtc chip\n"); -} - -static struct workqueue_struct *ds1374_workqueue; - -static DECLARE_WORK(ds1374_work, ds1374_set_work); - -int ds1374_set_rtc_time(ulong nowtime) -{ - new_time = nowtime; - - if (in_interrupt()) - queue_work(ds1374_workqueue, &ds1374_work); - else - ds1374_set_work(NULL); - - return 0; -} - -/* - ***************************************************************************** - * - * Driver Interface - * - ***************************************************************************** - */ -static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind) -{ - struct i2c_client *client; - int rc; - - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (!client) - return -ENOMEM; - - strncpy(client->name, DS1374_DRV_NAME, I2C_NAME_SIZE); - client->addr = addr; - client->adapter = adap; - client->driver = &ds1374_driver; - - ds1374_workqueue = create_singlethread_workqueue("ds1374"); - if (!ds1374_workqueue) { - kfree(client); - return -ENOMEM; /* most expected reason */ - } - - if ((rc = i2c_attach_client(client)) != 0) { - kfree(client); - return rc; - } - - save_client = client; - - ds1374_check_rtc_status(); - - return 0; -} - -static int ds1374_attach(struct i2c_adapter *adap) -{ - return i2c_probe(adap, &addr_data, ds1374_probe); -} - -static int ds1374_detach(struct i2c_client *client) -{ - int rc; - - if ((rc = i2c_detach_client(client)) == 0) { - kfree(i2c_get_clientdata(client)); - destroy_workqueue(ds1374_workqueue); - } - return rc; -} - -static struct i2c_driver ds1374_driver = { - .driver = { - .name = DS1374_DRV_NAME, - }, - .id = I2C_DRIVERID_DS1374, - .attach_adapter = ds1374_attach, - .detach_client = ds1374_detach, -}; - -static int __init ds1374_init(void) -{ - return i2c_add_driver(&ds1374_driver); -} - -static void __exit ds1374_exit(void) -{ - i2c_del_driver(&ds1374_driver); -} - -module_init(ds1374_init); -module_exit(ds1374_exit); - -MODULE_AUTHOR("Randy Vinson <rvinson@mvista.com>"); -MODULE_DESCRIPTION("Maxim/Dallas DS1374 RTC I2C Client Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 1a7eeebac50..fde297b21ad 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c @@ -35,7 +35,7 @@ #include <linux/mutex.h> /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, +static const unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, I2C_CLIENT_END }; /* Insmod parameters */ diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c index ebfbb2947ae..2a3160153f5 100644 --- a/drivers/i2c/chips/isp1301_omap.c +++ b/drivers/i2c/chips/isp1301_omap.c @@ -100,7 +100,7 @@ struct isp1301 { #if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE) -#include <asm/arch/tps65010.h> +#include <linux/i2c/tps65010.h> #else diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c deleted file mode 100644 index 3fcb646e207..00000000000 --- a/drivers/i2c/chips/m41t00.c +++ /dev/null @@ -1,413 +0,0 @@ -/* - * I2C client/driver for the ST M41T00 family of i2c rtc chips. - * - * Author: Mark A. Greer <mgreer@mvista.com> - * - * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ -/* - * This i2c client/driver wedges between the drivers/char/genrtc.c RTC - * interface and the SMBus interface of the i2c subsystem. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/i2c.h> -#include <linux/rtc.h> -#include <linux/bcd.h> -#include <linux/workqueue.h> -#include <linux/platform_device.h> -#include <linux/m41t00.h> -#include <asm/time.h> -#include <asm/rtc.h> - -static struct i2c_driver m41t00_driver; -static struct i2c_client *save_client; - -static unsigned short ignore[] = { I2C_CLIENT_END }; -static unsigned short normal_addr[] = { I2C_CLIENT_END, I2C_CLIENT_END }; - -static struct i2c_client_address_data addr_data = { - .normal_i2c = normal_addr, - .probe = ignore, - .ignore = ignore, -}; - -struct m41t00_chip_info { - u8 type; - char *name; - u8 read_limit; - u8 sec; /* Offsets for chip regs */ - u8 min; - u8 hour; - u8 day; - u8 mon; - u8 year; - u8 alarm_mon; - u8 alarm_hour; - u8 sqw; - u8 sqw_freq; -}; - -static struct m41t00_chip_info m41t00_chip_info_tbl[] = { - { - .type = M41T00_TYPE_M41T00, - .name = "m41t00", - .read_limit = 5, - .sec = 0, - .min = 1, - .hour = 2, - .day = 4, - .mon = 5, - .year = 6, - }, - { - .type = M41T00_TYPE_M41T81, - .name = "m41t81", - .read_limit = 1, - .sec = 1, - .min = 2, - .hour = 3, - .day = 5, - .mon = 6, - .year = 7, - .alarm_mon = 0xa, - .alarm_hour = 0xc, - .sqw = 0x13, - }, - { - .type = M41T00_TYPE_M41T85, - .name = "m41t85", - .read_limit = 1, - .sec = 1, - .min = 2, - .hour = 3, - .day = 5, - .mon = 6, - .year = 7, - .alarm_mon = 0xa, - .alarm_hour = 0xc, - .sqw = 0x13, - }, -}; -static struct m41t00_chip_info *m41t00_chip; - -ulong -m41t00_get_rtc_time(void) -{ - s32 sec, min, hour, day, mon, year; - s32 sec1, min1, hour1, day1, mon1, year1; - u8 reads = 0; - u8 buf[8], msgbuf[1] = { 0 }; /* offset into rtc's regs */ - struct i2c_msg msgs[] = { - { - .addr = save_client->addr, - .flags = 0, - .len = 1, - .buf = msgbuf, - }, - { - .addr = save_client->addr, - .flags = I2C_M_RD, - .len = 8, - .buf = buf, - }, - }; - - sec = min = hour = day = mon = year = 0; - - do { - if (i2c_transfer(save_client->adapter, msgs, 2) < 0) - goto read_err; - - sec1 = sec; - min1 = min; - hour1 = hour; - day1 = day; - mon1 = mon; - year1 = year; - - sec = buf[m41t00_chip->sec] & 0x7f; - min = buf[m41t00_chip->min] & 0x7f; - hour = buf[m41t00_chip->hour] & 0x3f; - day = buf[m41t00_chip->day] & 0x3f; - mon = buf[m41t00_chip->mon] & 0x1f; - year = buf[m41t00_chip->year]; - } while ((++reads < m41t00_chip->read_limit) && ((sec != sec1) - || (min != min1) || (hour != hour1) || (day != day1) - || (mon != mon1) || (year != year1))); - - if ((m41t00_chip->read_limit > 1) && ((sec != sec1) || (min != min1) - || (hour != hour1) || (day != day1) || (mon != mon1) - || (year != year1))) - goto read_err; - - sec = BCD2BIN(sec); - min = BCD2BIN(min); - hour = BCD2BIN(hour); - day = BCD2BIN(day); - mon = BCD2BIN(mon); - year = BCD2BIN(year); - - year += 1900; - if (year < 1970) - year += 100; - - return mktime(year, mon, day, hour, min, sec); - -read_err: - dev_err(&save_client->dev, "m41t00_get_rtc_time: Read error\n"); - return 0; -} -EXPORT_SYMBOL_GPL(m41t00_get_rtc_time); - -static void -m41t00_set(void *arg) -{ - struct rtc_time tm; - int nowtime = *(int *)arg; - s32 sec, min, hour, day, mon, year; - u8 wbuf[9], *buf = &wbuf[1], msgbuf[1] = { 0 }; - struct i2c_msg msgs[] = { - { - .addr = save_client->addr, - .flags = 0, - .len = 1, - .buf = msgbuf, - }, - { - .addr = save_client->addr, - .flags = I2C_M_RD, - .len = 8, - .buf = buf, - }, - }; - - to_tm(nowtime, &tm); - tm.tm_year = (tm.tm_year - 1900) % 100; - - sec = BIN2BCD(tm.tm_sec); - min = BIN2BCD(tm.tm_min); - hour = BIN2BCD(tm.tm_hour); - day = BIN2BCD(tm.tm_mday); - mon = BIN2BCD(tm.tm_mon); - year = BIN2BCD(tm.tm_year); - - /* Read reg values into buf[0..7]/wbuf[1..8] */ - if (i2c_transfer(save_client->adapter, msgs, 2) < 0) { - dev_err(&save_client->dev, "m41t00_set: Read error\n"); - return; - } - - wbuf[0] = 0; /* offset into rtc's regs */ - buf[m41t00_chip->sec] = (buf[m41t00_chip->sec] & ~0x7f) | (sec & 0x7f); - buf[m41t00_chip->min] = (buf[m41t00_chip->min] & ~0x7f) | (min & 0x7f); - buf[m41t00_chip->hour] = (buf[m41t00_chip->hour] & ~0x3f) | (hour& 0x3f); - buf[m41t00_chip->day] = (buf[m41t00_chip->day] & ~0x3f) | (day & 0x3f); - buf[m41t00_chip->mon] = (buf[m41t00_chip->mon] & ~0x1f) | (mon & 0x1f); - buf[m41t00_chip->year] = year; - - if (i2c_master_send(save_client, wbuf, 9) < 0) - dev_err(&save_client->dev, "m41t00_set: Write error\n"); -} - -static ulong new_time; -/* well, isn't this API just _lovely_? */ -static void -m41t00_barf(struct work_struct *unusable) -{ - m41t00_set(&new_time); -} - -static struct workqueue_struct *m41t00_wq; -static DECLARE_WORK(m41t00_work, m41t00_barf); - -int -m41t00_set_rtc_time(ulong nowtime) -{ - new_time = nowtime; - - if (in_interrupt()) - queue_work(m41t00_wq, &m41t00_work); - else - m41t00_set(&new_time); - - return 0; -} -EXPORT_SYMBOL_GPL(m41t00_set_rtc_time); - -/* - ***************************************************************************** - * - * platform_data Driver Interface - * - ***************************************************************************** - */ -static int __init -m41t00_platform_probe(struct platform_device *pdev) -{ - struct m41t00_platform_data *pdata; - int i; - - if (pdev && (pdata = pdev->dev.platform_data)) { - normal_addr[0] = pdata->i2c_addr; - - for (i=0; i<ARRAY_SIZE(m41t00_chip_info_tbl); i++) - if (m41t00_chip_info_tbl[i].type == pdata->type) { - m41t00_chip = &m41t00_chip_info_tbl[i]; - m41t00_chip->sqw_freq = pdata->sqw_freq; - return 0; - } - } - return -ENODEV; -} - -static int __exit -m41t00_platform_remove(struct platform_device *pdev) -{ - return 0; -} - -static struct platform_driver m41t00_platform_driver = { - .probe = m41t00_platform_probe, - .remove = m41t00_platform_remove, - .driver = { - .owner = THIS_MODULE, - .name = M41T00_DRV_NAME, - }, -}; - -/* - ***************************************************************************** - * - * Driver Interface - * - ***************************************************************************** - */ -static int -m41t00_probe(struct i2c_adapter *adap, int addr, int kind) -{ - struct i2c_client *client; - int rc; - - if (!i2c_check_functionality(adap, I2C_FUNC_I2C - | I2C_FUNC_SMBUS_BYTE_DATA)) - return 0; - - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (!client) - return -ENOMEM; - - strlcpy(client->name, m41t00_chip->name, I2C_NAME_SIZE); - client->addr = addr; - client->adapter = adap; - client->driver = &m41t00_driver; - - if ((rc = i2c_attach_client(client))) - goto attach_err; - - if (m41t00_chip->type != M41T00_TYPE_M41T00) { - /* If asked, disable SQW, set SQW frequency & re-enable */ - if (m41t00_chip->sqw_freq) - if (((rc = i2c_smbus_read_byte_data(client, - m41t00_chip->alarm_mon)) < 0) - || ((rc = i2c_smbus_write_byte_data(client, - m41t00_chip->alarm_mon, rc & ~0x40)) <0) - || ((rc = i2c_smbus_write_byte_data(client, - m41t00_chip->sqw, - m41t00_chip->sqw_freq)) < 0) - || ((rc = i2c_smbus_write_byte_data(client, - m41t00_chip->alarm_mon, rc | 0x40)) <0)) - goto sqw_err; - - /* Make sure HT (Halt Update) bit is cleared */ - if ((rc = i2c_smbus_read_byte_data(client, - m41t00_chip->alarm_hour)) < 0) - goto ht_err; - - if (rc & 0x40) - if ((rc = i2c_smbus_write_byte_data(client, - m41t00_chip->alarm_hour, rc & ~0x40))<0) - goto ht_err; - } - - /* Make sure ST (stop) bit is cleared */ - if ((rc = i2c_smbus_read_byte_data(client, m41t00_chip->sec)) < 0) - goto st_err; - - if (rc & 0x80) - if ((rc = i2c_smbus_write_byte_data(client, m41t00_chip->sec, - rc & ~0x80)) < 0) - goto st_err; - - m41t00_wq = create_singlethread_workqueue(m41t00_chip->name); - save_client = client; - return 0; - -st_err: - dev_err(&client->dev, "m41t00_probe: Can't clear ST bit\n"); - goto attach_err; -ht_err: - dev_err(&client->dev, "m41t00_probe: Can't clear HT bit\n"); - goto attach_err; -sqw_err: - dev_err(&client->dev, "m41t00_probe: Can't set SQW Frequency\n"); -attach_err: - kfree(client); - return rc; -} - -static int -m41t00_attach(struct i2c_adapter *adap) -{ - return i2c_probe(adap, &addr_data, m41t00_probe); -} - -static int -m41t00_detach(struct i2c_client *client) -{ - int rc; - - if ((rc = i2c_detach_client(client)) == 0) { - kfree(client); - destroy_workqueue(m41t00_wq); - } - return rc; -} - -static struct i2c_driver m41t00_driver = { - .driver = { - .name = M41T00_DRV_NAME, - }, - .id = I2C_DRIVERID_STM41T00, - .attach_adapter = m41t00_attach, - .detach_client = m41t00_detach, -}; - -static int __init -m41t00_init(void) -{ - int rc; - - if (!(rc = platform_driver_register(&m41t00_platform_driver))) - rc = i2c_add_driver(&m41t00_driver); - return rc; -} - -static void __exit -m41t00_exit(void) -{ - i2c_del_driver(&m41t00_driver); - platform_driver_unregister(&m41t00_platform_driver); -} - -module_init(m41t00_init); -module_exit(m41t00_exit); - -MODULE_AUTHOR("Mark A. Greer <mgreer@mvista.com>"); -MODULE_DESCRIPTION("ST Microelectronics M41T00 RTC I2C Client Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c index 64692f66637..fb7ea5637ec 100644 --- a/drivers/i2c/chips/max6875.c +++ b/drivers/i2c/chips/max6875.c @@ -34,7 +34,7 @@ #include <linux/mutex.h> /* Do not scan - the MAX6875 access method will write to some EEPROM chips */ -static unsigned short normal_i2c[] = {I2C_CLIENT_END}; +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD_1(max6875); diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c index 21c6dd69193..b3b830ccf20 100644 --- a/drivers/i2c/chips/pcf8574.c +++ b/drivers/i2c/chips/pcf8574.c @@ -41,9 +41,11 @@ #include <linux/i2c.h> /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, - 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, - I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + I2C_CLIENT_END +}; /* Insmod parameters */ I2C_CLIENT_INSMOD_2(pcf8574, pcf8574a); diff --git a/drivers/i2c/chips/pcf8575.c b/drivers/i2c/chips/pcf8575.c new file mode 100644 index 00000000000..3ea08ac0bfa --- /dev/null +++ b/drivers/i2c/chips/pcf8575.c @@ -0,0 +1,214 @@ +/* + pcf8575.c + + About the PCF8575 chip: the PCF8575 is a 16-bit I/O expander for the I2C bus + produced by a.o. Philips Semiconductors. + + Copyright (C) 2006 Michael Hennerich, Analog Devices Inc. + <hennerich@blackfin.uclinux.org> + Based on pcf8574.c. + + Copyright (c) 2007 Bart Van Assche <bart.vanassche@gmail.com>. + Ported this driver from ucLinux to the mainstream Linux kernel. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/slab.h> /* kzalloc() */ +#include <linux/sysfs.h> /* sysfs_create_group() */ + +/* Addresses to scan */ +static const unsigned short normal_i2c[] = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + I2C_CLIENT_END +}; + +/* Insmod parameters */ +I2C_CLIENT_INSMOD; + + +/* Each client has this additional data */ +struct pcf8575_data { + struct i2c_client client; + int write; /* last written value, or error code */ +}; + +static int pcf8575_attach_adapter(struct i2c_adapter *adapter); +static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind); +static int pcf8575_detach_client(struct i2c_client *client); + +/* This is the driver that will be inserted */ +static struct i2c_driver pcf8575_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "pcf8575", + }, + .attach_adapter = pcf8575_attach_adapter, + .detach_client = pcf8575_detach_client, +}; + +/* following are the sysfs callback functions */ +static ssize_t show_read(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + u16 val; + u8 iopin_state[2]; + + i2c_master_recv(client, iopin_state, 2); + + val = iopin_state[0]; + val |= iopin_state[1] << 8; + + return sprintf(buf, "%u\n", val); +} + +static DEVICE_ATTR(read, S_IRUGO, show_read, NULL); + +static ssize_t show_write(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct pcf8575_data *data = dev_get_drvdata(dev); + if (data->write < 0) + return data->write; + return sprintf(buf, "%d\n", data->write); +} + +static ssize_t set_write(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct pcf8575_data *data = i2c_get_clientdata(client); + unsigned long val = simple_strtoul(buf, NULL, 10); + u8 iopin_state[2]; + + if (val > 0xffff) + return -EINVAL; + + data->write = val; + + iopin_state[0] = val & 0xFF; + iopin_state[1] = val >> 8; + + i2c_master_send(client, iopin_state, 2); + + return count; +} + +static DEVICE_ATTR(write, S_IWUSR | S_IRUGO, show_write, set_write); + +static struct attribute *pcf8575_attributes[] = { + &dev_attr_read.attr, + &dev_attr_write.attr, + NULL +}; + +static const struct attribute_group pcf8575_attr_group = { + .attrs = pcf8575_attributes, +}; + +/* + * Real code + */ + +static int pcf8575_attach_adapter(struct i2c_adapter *adapter) +{ + return i2c_probe(adapter, &addr_data, pcf8575_detect); +} + +/* This function is called by i2c_probe */ +static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind) +{ + struct i2c_client *client; + struct pcf8575_data *data; + int err = 0; + + if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + goto exit; + + /* OK. For now, we presume we have a valid client. We now create the + client structure, even though we cannot fill it completely yet. */ + data = kzalloc(sizeof(struct pcf8575_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + client = &data->client; + i2c_set_clientdata(client, data); + client->addr = address; + client->adapter = adapter; + client->driver = &pcf8575_driver; + strlcpy(client->name, "pcf8575", I2C_NAME_SIZE); + data->write = -EAGAIN; + + /* This is the place to detect whether the chip at the specified + address really is a PCF8575 chip. However, there is no method known + to detect whether an I2C chip is a PCF8575 or any other I2C chip. */ + + /* Tell the I2C layer a new client has arrived */ + err = i2c_attach_client(client); + if (err) + goto exit_free; + + /* Register sysfs hooks */ + err = sysfs_create_group(&client->dev.kobj, &pcf8575_attr_group); + if (err) + goto exit_detach; + + return 0; + +exit_detach: + i2c_detach_client(client); +exit_free: + kfree(data); +exit: + return err; +} + +static int pcf8575_detach_client(struct i2c_client *client) +{ + int err; + + sysfs_remove_group(&client->dev.kobj, &pcf8575_attr_group); + + err = i2c_detach_client(client); + if (err) + return err; + + kfree(i2c_get_clientdata(client)); + return 0; +} + +static int __init pcf8575_init(void) +{ + return i2c_add_driver(&pcf8575_driver); +} + +static void __exit pcf8575_exit(void) +{ + i2c_del_driver(&pcf8575_driver); +} + +MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>, " + "Bart Van Assche <bart.vanassche@gmail.com>"); +MODULE_DESCRIPTION("pcf8575 driver"); +MODULE_LICENSE("GPL"); + +module_init(pcf8575_init); +module_exit(pcf8575_exit); diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c index 4dc36376eb3..865f4409c06 100644 --- a/drivers/i2c/chips/pcf8591.c +++ b/drivers/i2c/chips/pcf8591.c @@ -27,7 +27,7 @@ #include <linux/mutex.h> /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, +static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, I2C_CLIENT_END }; /* Insmod parameters */ diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index e320994b981..4154a910885 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c @@ -31,7 +31,7 @@ #include <linux/seq_file.h> #include <linux/mutex.h> -#include <asm/arch/tps65010.h> +#include <linux/i2c/tps65010.h> /*-------------------------------------------------------------------------*/ diff --git a/drivers/i2c/chips/tsl2550.c b/drivers/i2c/chips/tsl2550.c index 3de4b19ba08..a10fd2791a6 100644 --- a/drivers/i2c/chips/tsl2550.c +++ b/drivers/i2c/chips/tsl2550.c @@ -432,11 +432,32 @@ static int __devexit tsl2550_remove(struct i2c_client *client) return 0; } +#ifdef CONFIG_PM + +static int tsl2550_suspend(struct i2c_client *client, pm_message_t mesg) +{ + return tsl2550_set_power_state(client, 0); +} + +static int tsl2550_resume(struct i2c_client *client) +{ + return tsl2550_set_power_state(client, 1); +} + +#else + +#define tsl2550_suspend NULL +#define tsl2550_resume NULL + +#endif /* CONFIG_PM */ + static struct i2c_driver tsl2550_driver = { .driver = { .name = TSL2550_DRV_NAME, .owner = THIS_MODULE, }, + .suspend = tsl2550_suspend, + .resume = tsl2550_resume, .probe = tsl2550_probe, .remove = __devexit_p(tsl2550_remove), }; diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index b5e13e405e7..96da22e9a5a 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -33,14 +33,15 @@ #include <linux/platform_device.h> #include <linux/mutex.h> #include <linux/completion.h> +#include <linux/hardirq.h> +#include <linux/irqflags.h> #include <asm/uaccess.h> +#include <asm/semaphore.h> #include "i2c-core.h" -static LIST_HEAD(adapters); -static LIST_HEAD(drivers); -static DEFINE_MUTEX(core_lists); +static DEFINE_MUTEX(core_lock); static DEFINE_IDR(i2c_adapter_idr); #define is_newstyle_driver(d) ((d)->probe || (d)->remove) @@ -198,6 +199,25 @@ static struct bus_type i2c_bus_type = { .resume = i2c_device_resume, }; + +/** + * i2c_verify_client - return parameter as i2c_client, or NULL + * @dev: device, probably from some driver model iterator + * + * When traversing the driver model tree, perhaps using driver model + * iterators like @device_for_each_child(), you can't assume very much + * about the nodes you find. Use this function to avoid oopses caused + * by wrongly treating some non-I2C device as an i2c_client. + */ +struct i2c_client *i2c_verify_client(struct device *dev) +{ + return (dev->bus == &i2c_bus_type) + ? to_i2c_client(dev) + : NULL; +} +EXPORT_SYMBOL(i2c_verify_client); + + /** * i2c_new_device - instantiate an i2c device for use with a new style driver * @adap: the adapter managing the device @@ -276,6 +296,50 @@ void i2c_unregister_device(struct i2c_client *client) EXPORT_SYMBOL_GPL(i2c_unregister_device); +static int dummy_nop(struct i2c_client *client) +{ + return 0; +} + +static struct i2c_driver dummy_driver = { + .driver.name = "dummy", + .probe = dummy_nop, + .remove = dummy_nop, +}; + +/** + * i2c_new_dummy - return a new i2c device bound to a dummy driver + * @adapter: the adapter managing the device + * @address: seven bit address to be used + * @type: optional label used for i2c_client.name + * Context: can sleep + * + * This returns an I2C client bound to the "dummy" driver, intended for use + * with devices that consume multiple addresses. Examples of such chips + * include various EEPROMS (like 24c04 and 24c08 models). + * + * These dummy devices have two main uses. First, most I2C and SMBus calls + * except i2c_transfer() need a client handle; the dummy will be that handle. + * And second, this prevents the specified address from being bound to a + * different driver. + * + * This returns the new i2c client, which should be saved for later use with + * i2c_unregister_device(); or NULL to indicate an error. + */ +struct i2c_client * +i2c_new_dummy(struct i2c_adapter *adapter, u16 address, const char *type) +{ + struct i2c_board_info info = { + .driver_name = "dummy", + .addr = address, + }; + + if (type) + strlcpy(info.type, type, sizeof info.type); + return i2c_new_device(adapter, &info); +} +EXPORT_SYMBOL_GPL(i2c_new_dummy); + /* ------------------------------------------------------------------------- */ /* I2C bus adapters -- one roots each I2C or SMBUS segment */ @@ -320,18 +384,27 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter) mutex_unlock(&__i2c_board_lock); } +static int i2c_do_add_adapter(struct device_driver *d, void *data) +{ + struct i2c_driver *driver = to_i2c_driver(d); + struct i2c_adapter *adap = data; + + if (driver->attach_adapter) { + /* We ignore the return code; if it fails, too bad */ + driver->attach_adapter(adap); + } + return 0; +} + static int i2c_register_adapter(struct i2c_adapter *adap) { - int res = 0; - struct list_head *item; - struct i2c_driver *driver; + int res = 0, dummy; mutex_init(&adap->bus_lock); mutex_init(&adap->clist_lock); INIT_LIST_HEAD(&adap->clients); - mutex_lock(&core_lists); - list_add_tail(&adap->list, &adapters); + mutex_lock(&core_lock); /* Add the adapter to the driver core. * If the parent pointer is not set up, @@ -356,19 +429,14 @@ static int i2c_register_adapter(struct i2c_adapter *adap) i2c_scan_static_board_info(adap); /* let legacy drivers scan this bus for matching devices */ - list_for_each(item,&drivers) { - driver = list_entry(item, struct i2c_driver, list); - if (driver->attach_adapter) - /* We ignore the return code; if it fails, too bad */ - driver->attach_adapter(adap); - } + dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap, + i2c_do_add_adapter); out_unlock: - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); return res; out_list: - list_del(&adap->list); idr_remove(&i2c_adapter_idr, adap->nr); goto out_unlock; } @@ -394,11 +462,11 @@ retry: if (idr_pre_get(&i2c_adapter_idr, GFP_KERNEL) == 0) return -ENOMEM; - mutex_lock(&core_lists); + mutex_lock(&core_lock); /* "above" here means "above or equal to", sigh */ res = idr_get_new_above(&i2c_adapter_idr, adapter, __i2c_first_dynamic_bus_num, &id); - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); if (res < 0) { if (res == -EAGAIN) @@ -443,7 +511,7 @@ retry: if (idr_pre_get(&i2c_adapter_idr, GFP_KERNEL) == 0) return -ENOMEM; - mutex_lock(&core_lists); + mutex_lock(&core_lock); /* "above" here means "above or equal to", sigh; * we need the "equal to" result to force the result */ @@ -452,7 +520,7 @@ retry: status = -EBUSY; idr_remove(&i2c_adapter_idr, id); } - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); if (status == -EAGAIN) goto retry; @@ -462,6 +530,21 @@ retry: } EXPORT_SYMBOL_GPL(i2c_add_numbered_adapter); +static int i2c_do_del_adapter(struct device_driver *d, void *data) +{ + struct i2c_driver *driver = to_i2c_driver(d); + struct i2c_adapter *adapter = data; + int res; + + if (!driver->detach_adapter) + return 0; + res = driver->detach_adapter(adapter); + if (res) + dev_err(&adapter->dev, "detach_adapter failed (%d) " + "for driver [%s]\n", res, driver->driver.name); + return res; +} + /** * i2c_del_adapter - unregister I2C adapter * @adap: the adapter being unregistered @@ -473,35 +556,24 @@ EXPORT_SYMBOL_GPL(i2c_add_numbered_adapter); int i2c_del_adapter(struct i2c_adapter *adap) { struct list_head *item, *_n; - struct i2c_adapter *adap_from_list; - struct i2c_driver *driver; struct i2c_client *client; int res = 0; - mutex_lock(&core_lists); + mutex_lock(&core_lock); /* First make sure that this adapter was ever added */ - list_for_each_entry(adap_from_list, &adapters, list) { - if (adap_from_list == adap) - break; - } - if (adap_from_list != adap) { + if (idr_find(&i2c_adapter_idr, adap->nr) != adap) { pr_debug("i2c-core: attempting to delete unregistered " "adapter [%s]\n", adap->name); res = -EINVAL; goto out_unlock; } - list_for_each(item,&drivers) { - driver = list_entry(item, struct i2c_driver, list); - if (driver->detach_adapter) - if ((res = driver->detach_adapter(adap))) { - dev_err(&adap->dev, "detach_adapter failed " - "for driver [%s]\n", - driver->driver.name); - goto out_unlock; - } - } + /* Tell drivers about this removal */ + res = bus_for_each_drv(&i2c_bus_type, NULL, adap, + i2c_do_del_adapter); + if (res) + goto out_unlock; /* detach any active clients. This must be done first, because * it can fail; in which case we give up. */ @@ -529,7 +601,6 @@ int i2c_del_adapter(struct i2c_adapter *adap) /* clean up the sysfs representation */ init_completion(&adap->dev_released); device_unregister(&adap->dev); - list_del(&adap->list); /* wait for sysfs to drop all references */ wait_for_completion(&adap->dev_released); @@ -540,7 +611,7 @@ int i2c_del_adapter(struct i2c_adapter *adap) dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name); out_unlock: - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); return res; } EXPORT_SYMBOL(i2c_del_adapter); @@ -583,21 +654,23 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver) if (res) return res; - mutex_lock(&core_lists); + mutex_lock(&core_lock); - list_add_tail(&driver->list,&drivers); pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name); /* legacy drivers scan i2c busses directly */ if (driver->attach_adapter) { struct i2c_adapter *adapter; - list_for_each_entry(adapter, &adapters, list) { + down(&i2c_adapter_class.sem); + list_for_each_entry(adapter, &i2c_adapter_class.devices, + dev.node) { driver->attach_adapter(adapter); } + up(&i2c_adapter_class.sem); } - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); return 0; } EXPORT_SYMBOL(i2c_register_driver); @@ -609,11 +682,11 @@ EXPORT_SYMBOL(i2c_register_driver); */ void i2c_del_driver(struct i2c_driver *driver) { - struct list_head *item1, *item2, *_n; + struct list_head *item2, *_n; struct i2c_client *client; struct i2c_adapter *adap; - mutex_lock(&core_lists); + mutex_lock(&core_lock); /* new-style driver? */ if (is_newstyle_driver(driver)) @@ -623,8 +696,8 @@ void i2c_del_driver(struct i2c_driver *driver) * attached. If so, detach them to be able to kill the driver * afterwards. */ - list_for_each(item1,&adapters) { - adap = list_entry(item1, struct i2c_adapter, list); + down(&i2c_adapter_class.sem); + list_for_each_entry(adap, &i2c_adapter_class.devices, dev.node) { if (driver->detach_adapter) { if (driver->detach_adapter(adap)) { dev_err(&adap->dev, "detach_adapter failed " @@ -648,40 +721,31 @@ void i2c_del_driver(struct i2c_driver *driver) } } } + up(&i2c_adapter_class.sem); unregister: driver_unregister(&driver->driver); - list_del(&driver->list); pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name); - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); } EXPORT_SYMBOL(i2c_del_driver); /* ------------------------------------------------------------------------- */ -static int __i2c_check_addr(struct i2c_adapter *adapter, unsigned int addr) +static int __i2c_check_addr(struct device *dev, void *addrp) { - struct list_head *item; - struct i2c_client *client; + struct i2c_client *client = i2c_verify_client(dev); + int addr = *(int *)addrp; - list_for_each(item,&adapter->clients) { - client = list_entry(item, struct i2c_client, list); - if (client->addr == addr) - return -EBUSY; - } + if (client && client->addr == addr) + return -EBUSY; return 0; } static int i2c_check_addr(struct i2c_adapter *adapter, int addr) { - int rval; - - mutex_lock(&adapter->clist_lock); - rval = __i2c_check_addr(adapter, addr); - mutex_unlock(&adapter->clist_lock); - - return rval; + return device_for_each_child(&adapter->dev, &addr, __i2c_check_addr); } int i2c_attach_client(struct i2c_client *client) @@ -689,15 +753,6 @@ int i2c_attach_client(struct i2c_client *client) struct i2c_adapter *adapter = client->adapter; int res = 0; - mutex_lock(&adapter->clist_lock); - if (__i2c_check_addr(client->adapter, client->addr)) { - res = -EBUSY; - goto out_unlock; - } - list_add_tail(&client->list,&adapter->clients); - - client->usage_count = 0; - client->dev.parent = &client->adapter->dev; client->dev.bus = &i2c_bus_type; @@ -712,13 +767,17 @@ int i2c_attach_client(struct i2c_client *client) snprintf(&client->dev.bus_id[0], sizeof(client->dev.bus_id), "%d-%04x", i2c_adapter_id(adapter), client->addr); - dev_dbg(&adapter->dev, "client [%s] registered with bus id %s\n", - client->name, client->dev.bus_id); res = device_register(&client->dev); if (res) - goto out_list; + goto out_err; + + mutex_lock(&adapter->clist_lock); + list_add_tail(&client->list, &adapter->clients); mutex_unlock(&adapter->clist_lock); + dev_dbg(&adapter->dev, "client [%s] registered with bus id %s\n", + client->name, client->dev.bus_id); + if (adapter->client_register) { if (adapter->client_register(client)) { dev_dbg(&adapter->dev, "client_register " @@ -729,12 +788,9 @@ int i2c_attach_client(struct i2c_client *client) return 0; -out_list: - list_del(&client->list); +out_err: dev_err(&adapter->dev, "Failed to attach i2c client %s at 0x%02x " "(%d)\n", client->name, client->addr, res); -out_unlock: - mutex_unlock(&adapter->clist_lock); return res; } EXPORT_SYMBOL(i2c_attach_client); @@ -744,12 +800,6 @@ int i2c_detach_client(struct i2c_client *client) struct i2c_adapter *adapter = client->adapter; int res = 0; - if (client->usage_count > 0) { - dev_warn(&client->dev, "Client [%s] still busy, " - "can't detach\n", client->name); - return -EBUSY; - } - if (adapter->client_unregister) { res = adapter->client_unregister(client); if (res) { @@ -762,9 +812,10 @@ int i2c_detach_client(struct i2c_client *client) mutex_lock(&adapter->clist_lock); list_del(&client->list); + mutex_unlock(&adapter->clist_lock); + init_completion(&client->released); device_unregister(&client->dev); - mutex_unlock(&adapter->clist_lock); wait_for_completion(&client->released); out: @@ -772,72 +823,58 @@ int i2c_detach_client(struct i2c_client *client) } EXPORT_SYMBOL(i2c_detach_client); -static int i2c_inc_use_client(struct i2c_client *client) +/** + * i2c_use_client - increments the reference count of the i2c client structure + * @client: the client being referenced + * + * Each live reference to a client should be refcounted. The driver model does + * that automatically as part of driver binding, so that most drivers don't + * need to do this explicitly: they hold a reference until they're unbound + * from the device. + * + * A pointer to the client with the incremented reference counter is returned. + */ +struct i2c_client *i2c_use_client(struct i2c_client *client) { - - if (!try_module_get(client->driver->driver.owner)) - return -ENODEV; - if (!try_module_get(client->adapter->owner)) { - module_put(client->driver->driver.owner); - return -ENODEV; - } - - return 0; + get_device(&client->dev); + return client; } +EXPORT_SYMBOL(i2c_use_client); -static void i2c_dec_use_client(struct i2c_client *client) +/** + * i2c_release_client - release a use of the i2c client structure + * @client: the client being no longer referenced + * + * Must be called when a user of a client is finished with it. + */ +void i2c_release_client(struct i2c_client *client) { - module_put(client->driver->driver.owner); - module_put(client->adapter->owner); + put_device(&client->dev); } +EXPORT_SYMBOL(i2c_release_client); -int i2c_use_client(struct i2c_client *client) -{ - int ret; - - ret = i2c_inc_use_client(client); - if (ret) - return ret; - - client->usage_count++; - - return 0; -} -EXPORT_SYMBOL(i2c_use_client); +struct i2c_cmd_arg { + unsigned cmd; + void *arg; +}; -int i2c_release_client(struct i2c_client *client) +static int i2c_cmd(struct device *dev, void *_arg) { - if (!client->usage_count) { - pr_debug("i2c-core: %s used one too many times\n", - __FUNCTION__); - return -EPERM; - } - - client->usage_count--; - i2c_dec_use_client(client); + struct i2c_client *client = i2c_verify_client(dev); + struct i2c_cmd_arg *arg = _arg; + if (client && client->driver && client->driver->command) + client->driver->command(client, arg->cmd, arg->arg); return 0; } -EXPORT_SYMBOL(i2c_release_client); void i2c_clients_command(struct i2c_adapter *adap, unsigned int cmd, void *arg) { - struct list_head *item; - struct i2c_client *client; + struct i2c_cmd_arg cmd_arg; - mutex_lock(&adap->clist_lock); - list_for_each(item,&adap->clients) { - client = list_entry(item, struct i2c_client, list); - if (!try_module_get(client->driver->driver.owner)) - continue; - if (NULL != client->driver->command) { - mutex_unlock(&adap->clist_lock); - client->driver->command(client,cmd,arg); - mutex_lock(&adap->clist_lock); - } - module_put(client->driver->driver.owner); - } - mutex_unlock(&adap->clist_lock); + cmd_arg.cmd = cmd; + cmd_arg.arg = arg; + device_for_each_child(&adap->dev, &cmd_arg, i2c_cmd); } EXPORT_SYMBOL(i2c_clients_command); @@ -848,11 +885,24 @@ static int __init i2c_init(void) retval = bus_register(&i2c_bus_type); if (retval) return retval; - return class_register(&i2c_adapter_class); + retval = class_register(&i2c_adapter_class); + if (retval) + goto bus_err; + retval = i2c_add_driver(&dummy_driver); + if (retval) + goto class_err; + return 0; + +class_err: + class_unregister(&i2c_adapter_class); +bus_err: + bus_unregister(&i2c_bus_type); + return retval; } static void __exit i2c_exit(void) { + i2c_del_driver(&dummy_driver); class_unregister(&i2c_adapter_class); bus_unregister(&i2c_bus_type); } @@ -879,7 +929,15 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num) } #endif - mutex_lock_nested(&adap->bus_lock, adap->level); + if (in_atomic() || irqs_disabled()) { + ret = mutex_trylock(&adap->bus_lock); + if (!ret) + /* I2C activity is ongoing. */ + return -EAGAIN; + } else { + mutex_lock_nested(&adap->bus_lock, adap->level); + } + ret = adap->algo->master_xfer(adap,msgs,num); mutex_unlock(&adap->bus_lock); @@ -978,7 +1036,7 @@ static int i2c_probe_address(struct i2c_adapter *adapter, int addr, int kind, } int i2c_probe(struct i2c_adapter *adapter, - struct i2c_client_address_data *address_data, + const struct i2c_client_address_data *address_data, int (*found_proc) (struct i2c_adapter *, int, int)) { int i, err; @@ -987,7 +1045,7 @@ int i2c_probe(struct i2c_adapter *adapter, /* Force entries are done first, and are not affected by ignore entries */ if (address_data->forces) { - unsigned short **forces = address_data->forces; + const unsigned short * const *forces = address_data->forces; int kind; for (kind = 0; forces[kind]; kind++) { @@ -1085,7 +1143,6 @@ i2c_new_probed_device(struct i2c_adapter *adap, return NULL; } - mutex_lock(&adap->clist_lock); for (i = 0; addr_list[i] != I2C_CLIENT_END; i++) { /* Check address validity */ if (addr_list[i] < 0x03 || addr_list[i] > 0x77) { @@ -1095,7 +1152,7 @@ i2c_new_probed_device(struct i2c_adapter *adap, } /* Check address availability */ - if (__i2c_check_addr(adap, addr_list[i])) { + if (i2c_check_addr(adap, addr_list[i])) { dev_dbg(&adap->dev, "Address 0x%02x already in " "use, not probing\n", addr_list[i]); continue; @@ -1123,7 +1180,6 @@ i2c_new_probed_device(struct i2c_adapter *adap, break; } } - mutex_unlock(&adap->clist_lock); if (addr_list[i] == I2C_CLIENT_END) { dev_dbg(&adap->dev, "Probing failed, no device found\n"); @@ -1139,12 +1195,12 @@ struct i2c_adapter* i2c_get_adapter(int id) { struct i2c_adapter *adapter; - mutex_lock(&core_lists); + mutex_lock(&core_lock); adapter = (struct i2c_adapter *)idr_find(&i2c_adapter_idr, id); if (adapter && !try_module_get(adapter->owner)) adapter = NULL; - mutex_unlock(&core_lists); + mutex_unlock(&core_lock); return adapter; } EXPORT_SYMBOL(i2c_get_adapter); diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index df540d5dfaf..393e679d9fa 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -182,27 +182,22 @@ static ssize_t i2cdev_write (struct file *file, const char __user *buf, size_t c return ret; } +static int i2cdev_check(struct device *dev, void *addrp) +{ + struct i2c_client *client = i2c_verify_client(dev); + + if (!client || client->addr != *(unsigned int *)addrp) + return 0; + + return dev->driver ? -EBUSY : 0; +} + /* This address checking function differs from the one in i2c-core in that it considers an address with a registered device, but no - bound driver, as NOT busy. */ + driver bound to it, as NOT busy. */ static int i2cdev_check_addr(struct i2c_adapter *adapter, unsigned int addr) { - struct list_head *item; - struct i2c_client *client; - int res = 0; - - mutex_lock(&adapter->clist_lock); - list_for_each(item, &adapter->clients) { - client = list_entry(item, struct i2c_client, list); - if (client->addr == addr) { - if (client->driver) - res = -EBUSY; - break; - } - } - mutex_unlock(&adapter->clist_lock); - - return res; + return device_for_each_child(&adapter->dev, &addr, i2cdev_check); } static int i2cdev_ioctl(struct inode *inode, struct file *file, diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index ee01e273a53..64df55e20ab 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -325,7 +325,7 @@ config BLK_DEV_PLATFORM If unsure, say N. config BLK_DEV_CMD640 - bool "CMD640 chipset bugfix/support" + tristate "CMD640 chipset bugfix/support" depends on X86 ---help--- The CMD-Technologies CMD640 IDE chip is used on many common 486 and @@ -359,9 +359,8 @@ config BLK_DEV_CMD640_ENHANCED Otherwise say N. config BLK_DEV_IDEPNP - bool "PNP EIDE support" + tristate "PNP EIDE support" depends on PNP - select IDE_GENERIC help If you have a PnP (Plug and Play) compatible EIDE card and would like the kernel to automatically detect and activate @@ -375,7 +374,19 @@ config BLK_DEV_IDEPCI bool config IDEPCI_PCIBUS_ORDER - def_bool BLK_DEV_IDE=y && BLK_DEV_IDEPCI + bool "Probe IDE PCI devices in the PCI bus order (DEPRECATED)" + depends on BLK_DEV_IDE=y && BLK_DEV_IDEPCI + default y + help + Probe IDE PCI devices in the order in which they appear on the + PCI bus (i.e. 00:1f.1 PCI device before 02:01.0 PCI device) + instead of the order in which IDE PCI host drivers are loaded. + + Please note that this method of assuring stable naming of + IDE devices is unreliable and use other means for achieving + it (i.e. udev). + + If in doubt, say N. # TODO: split it on per host driver config options (or module parameters) config BLK_DEV_OFFBOARD @@ -789,7 +800,7 @@ config BLK_DEV_CELLEB endif config BLK_DEV_IDE_PMAC - bool "Builtin PowerMac IDE support" + tristate "Builtin PowerMac IDE support" depends on PPC_PMAC && IDE=y && BLK_DEV_IDE=y help This driver provides support for the built-in IDE controller on @@ -843,8 +854,9 @@ config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ depends on BLK_DEV_IDE_AU1XXX config IDE_ARM - def_bool ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK) - select IDE_GENERIC + tristate "ARM IDE support" + depends on ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK) + default y config BLK_DEV_IDE_ICSIDE tristate "ICS IDE interface support" @@ -876,10 +888,9 @@ config BLK_DEV_IDE_BAST Simtec BAST or the Thorcom VR1000 config ETRAX_IDE - bool "ETRAX IDE support" + tristate "ETRAX IDE support" depends on CRIS && BROKEN select BLK_DEV_IDEDMA - select IDE_GENERIC help Enables the ETRAX IDE driver. @@ -911,17 +922,15 @@ config ETRAX_IDE_G27_RESET endchoice config IDE_H8300 - bool "H8300 IDE support" + tristate "H8300 IDE support" depends on H8300 - select IDE_GENERIC default y help Enables the H8300 IDE driver. config BLK_DEV_GAYLE - bool "Amiga Gayle IDE interface support" + tristate "Amiga Gayle IDE interface support" depends on AMIGA - select IDE_GENERIC help This is the IDE driver for the Amiga Gayle IDE interface. It supports both the `A1200 style' and `A4000 style' of the Gayle IDE interface, @@ -951,9 +960,8 @@ config BLK_DEV_IDEDOUBLER runtime using the "ide=doubler" kernel boot parameter. config BLK_DEV_BUDDHA - bool "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)" + tristate "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)" depends on ZORRO && EXPERIMENTAL - select IDE_GENERIC help This is the IDE driver for the IDE interfaces on the Buddha, Catweasel and X-Surf expansion boards. It supports up to two interfaces @@ -964,9 +972,8 @@ config BLK_DEV_BUDDHA to one of its IDE interfaces. config BLK_DEV_FALCON_IDE - bool "Falcon IDE interface support" + tristate "Falcon IDE interface support" depends on ATARI - select IDE_GENERIC help This is the IDE driver for the builtin IDE interface on the Atari Falcon. Say Y if you have a Falcon and want to use IDE devices (hard @@ -974,9 +981,8 @@ config BLK_DEV_FALCON_IDE interface. config BLK_DEV_MAC_IDE - bool "Macintosh Quadra/Powerbook IDE interface support" + tristate "Macintosh Quadra/Powerbook IDE interface support" depends on MAC - select IDE_GENERIC help This is the IDE driver for the builtin IDE interface on some m68k Macintosh models. It supports both the `Quadra style' (used in @@ -988,18 +994,16 @@ config BLK_DEV_MAC_IDE builtin IDE interface. config BLK_DEV_Q40IDE - bool "Q40/Q60 IDE interface support" + tristate "Q40/Q60 IDE interface support" depends on Q40 - select IDE_GENERIC help Enable the on-board IDE controller in the Q40/Q60. This should normally be on; disable it only if you are running a custom hard drive subsystem through an expansion card. config BLK_DEV_MPC8xx_IDE - bool "MPC8xx IDE support" + tristate "MPC8xx IDE support" depends on 8xx && (LWMON || IVMS8 || IVML24 || TQM8xxL) && IDE=y && BLK_DEV_IDE=y && !PPC_MERGE - select IDE_GENERIC help This option provides support for IDE on Motorola MPC8xx Systems. Please see 'Type of MPC8xx IDE interface' for details. diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index b181fc67205..0d2da89d15c 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -7,41 +7,37 @@ # Note : at this point, these files are compiled on all systems. # In the future, some of these should be built conditionally. # -# First come modules that register themselves with the core +# link order is important here EXTRA_CFLAGS += -Idrivers/ide -obj-$(CONFIG_BLK_DEV_IDE) += pci/ - ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o -ide-core-$(CONFIG_BLK_DEV_CMD640) += pci/cmd640.o - -# Core IDE code - must come before legacy +# core IDE code ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o ide-core-$(CONFIG_BLK_DEV_IDEDMA) += ide-dma.o ide-core-$(CONFIG_IDE_PROC_FS) += ide-proc.o -ide-core-$(CONFIG_BLK_DEV_IDEPNP) += ide-pnp.o ide-core-$(CONFIG_BLK_DEV_IDEACPI) += ide-acpi.o -# built-in only drivers from arm/ -ide-core-$(CONFIG_IDE_ARM) += arm/ide_arm.o +obj-$(CONFIG_BLK_DEV_IDE) += ide-core.o -# built-in only drivers from legacy/ -ide-core-$(CONFIG_BLK_DEV_BUDDHA) += legacy/buddha.o -ide-core-$(CONFIG_BLK_DEV_FALCON_IDE) += legacy/falconide.o -ide-core-$(CONFIG_BLK_DEV_GAYLE) += legacy/gayle.o -ide-core-$(CONFIG_BLK_DEV_MAC_IDE) += legacy/macide.o -ide-core-$(CONFIG_BLK_DEV_Q40IDE) += legacy/q40ide.o +ifeq ($(CONFIG_IDE_ARM), y) + ide-arm-core-y += arm/ide_arm.o + obj-y += ide-arm-core.o +endif -# built-in only drivers from ppc/ -ide-core-$(CONFIG_BLK_DEV_MPC8xx_IDE) += ppc/mpc8xx.o -ide-core-$(CONFIG_BLK_DEV_IDE_PMAC) += ppc/pmac.o +obj-$(CONFIG_BLK_DEV_IDE) += legacy/ pci/ -# built-in only drivers from h8300/ -ide-core-$(CONFIG_IDE_H8300) += h8300/ide-h8300.o +obj-$(CONFIG_IDEPCI_PCIBUS_ORDER) += ide-scan-pci.o -obj-$(CONFIG_BLK_DEV_IDE) += ide-core.o +ifeq ($(CONFIG_BLK_DEV_CMD640), y) + cmd640-core-y += pci/cmd640.o + obj-y += cmd640-core.o +endif + +obj-$(CONFIG_BLK_DEV_IDE) += cris/ ppc/ +obj-$(CONFIG_BLK_DEV_IDEPNP) += ide-pnp.o +obj-$(CONFIG_IDE_H8300) += h8300/ obj-$(CONFIG_IDE_GENERIC) += ide-generic.o obj-$(CONFIG_BLK_DEV_IDEDISK) += ide-disk.o @@ -49,6 +45,20 @@ obj-$(CONFIG_BLK_DEV_IDECD) += ide-cd.o obj-$(CONFIG_BLK_DEV_IDETAPE) += ide-tape.o obj-$(CONFIG_BLK_DEV_IDEFLOPPY) += ide-floppy.o -obj-$(CONFIG_BLK_DEV_IDE) += legacy/ arm/ mips/ -obj-$(CONFIG_BLK_DEV_HD) += legacy/ -obj-$(CONFIG_ETRAX_IDE) += cris/ +ifeq ($(CONFIG_BLK_DEV_IDECS), y) + ide-cs-core-y += legacy/ide-cs.o + obj-y += ide-cs-core.o +endif + +ifeq ($(CONFIG_BLK_DEV_PLATFORM), y) + ide-platform-core-y += legacy/ide_platform.o + obj-y += ide-platform-core.o +endif + +obj-$(CONFIG_BLK_DEV_IDE) += arm/ mips/ + +# old hd driver must be last +ifeq ($(CONFIG_BLK_DEV_HD), y) + hd-core-y += legacy/hd.o + obj-y += hd-core.o +endif diff --git a/drivers/ide/arm/Makefile b/drivers/ide/arm/Makefile index 6a78f0755f2..5f63ad21686 100644 --- a/drivers/ide/arm/Makefile +++ b/drivers/ide/arm/Makefile @@ -3,4 +3,8 @@ obj-$(CONFIG_BLK_DEV_IDE_ICSIDE) += icside.o obj-$(CONFIG_BLK_DEV_IDE_RAPIDE) += rapide.o obj-$(CONFIG_BLK_DEV_IDE_BAST) += bast-ide.o +ifeq ($(CONFIG_IDE_ARM), m) + obj-m += ide_arm.o +endif + EXTRA_CFLAGS := -Idrivers/ide diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c index 48db6167bb9..45bf9c825f2 100644 --- a/drivers/ide/arm/bast-ide.c +++ b/drivers/ide/arm/bast-ide.c @@ -45,7 +45,7 @@ bastide_register(unsigned int base, unsigned int aux, int irq, hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20); hw.irq = irq; - ide_register_hw(&hw, NULL, 0, hwif); + ide_register_hw(&hw, NULL, hwif); return 0; } diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 673402f4a29..8a5c7205b77 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -287,26 +287,10 @@ static void icside_set_dma_mode(ide_drive_t *drive, const u8 xfer_mode) ide_xfer_verbose(xfer_mode), 2000 / drive->drive_data); } -static void icside_dma_host_off(ide_drive_t *drive) +static void icside_dma_host_set(ide_drive_t *drive, int on) { } -static void icside_dma_off_quietly(ide_drive_t *drive) -{ - drive->using_dma = 0; -} - -static void icside_dma_host_on(ide_drive_t *drive) -{ -} - -static int icside_dma_on(ide_drive_t *drive) -{ - drive->using_dma = 1; - - return 0; -} - static int icside_dma_end(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); @@ -422,10 +406,7 @@ static void icside_dma_init(ide_hwif_t *hwif) hwif->dmatable_dma = 0; hwif->set_dma_mode = icside_set_dma_mode; - hwif->dma_host_off = icside_dma_host_off; - hwif->dma_off_quietly = icside_dma_off_quietly; - hwif->dma_host_on = icside_dma_host_on; - hwif->ide_dma_on = icside_dma_on; + hwif->dma_host_set = icside_dma_host_set; hwif->dma_setup = icside_dma_setup; hwif->dma_exec_cmd = icside_dma_exec_cmd; hwif->dma_start = icside_dma_start; diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c index 8957cbadf5c..60f2497542c 100644 --- a/drivers/ide/arm/ide_arm.c +++ b/drivers/ide/arm/ide_arm.c @@ -24,12 +24,25 @@ # define IDE_ARM_IRQ IRQ_HARDDISK #endif -void __init ide_arm_init(void) +static int __init ide_arm_init(void) { + ide_hwif_t *hwif; hw_regs_t hw; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; memset(&hw, 0, sizeof(hw)); ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206); hw.irq = IDE_ARM_IRQ; - ide_register_hw(&hw, NULL, 1, NULL); + + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + ide_init_port_hw(hwif, &hw); + idx[0] = hwif->index; + + ide_device_add(idx); + } + + return 0; } + +module_init(ide_arm_init); diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 0775a3afef4..e6b56d1d48f 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -13,26 +13,18 @@ #include <asm/ecard.h> -static ide_hwif_t * -rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq) +static void rapide_setup_ports(hw_regs_t *hw, void __iomem *base, + void __iomem *ctrl, unsigned int sz, int irq) { unsigned long port = (unsigned long)base; - ide_hwif_t *hwif = ide_find_port(port); int i; - if (hwif == NULL) - goto out; - for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { - hwif->io_ports[i] = port; + hw->io_ports[i] = port; port += sz; } - hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; - hwif->irq = irq; - hwif->mmio = 1; - default_hwif_mmiops(hwif); -out: - return hwif; + hw->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; + hw->irq = irq; } static int __devinit @@ -42,6 +34,7 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) void __iomem *base; int ret; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + hw_regs_t hw; ret = ecard_request_resources(ec); if (ret) @@ -53,11 +46,17 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) goto release; } - hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq); + hwif = ide_find_port((unsigned long)base); if (hwif) { - hwif->hwif_data = base; - hwif->gendev.parent = &ec->dev; - hwif->noprobe = 0; + memset(&hw, 0, sizeof(hw)); + rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq); + hw.chipset = ide_generic; + hw.dev = &ec->dev; + + ide_init_port_hw(hwif, &hw); + + hwif->mmio = 1; + default_hwif_mmiops(hwif); idx[0] = hwif->index; diff --git a/drivers/ide/cris/Makefile b/drivers/ide/cris/Makefile index 6176e8d6b2e..20b95960531 100644 --- a/drivers/ide/cris/Makefile +++ b/drivers/ide/cris/Makefile @@ -1,3 +1,3 @@ EXTRA_CFLAGS += -Idrivers/ide -obj-y += ide-cris.o +obj-$(CONFIG_IDE_ETRAX) += ide-cris.o diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c index 325e608d9e6..8c3294c4d23 100644 --- a/drivers/ide/cris/ide-cris.c +++ b/drivers/ide/cris/ide-cris.c @@ -673,9 +673,8 @@ static void cris_ide_input_data (ide_drive_t *drive, void *, unsigned int); static void cris_ide_output_data (ide_drive_t *drive, void *, unsigned int); static void cris_atapi_input_bytes(ide_drive_t *drive, void *, unsigned int); static void cris_atapi_output_bytes(ide_drive_t *drive, void *, unsigned int); -static int cris_dma_on (ide_drive_t *drive); -static void cris_dma_off(ide_drive_t *drive) +static void cris_dma_host_set(ide_drive_t *drive, int on) { } @@ -755,13 +754,11 @@ static void cris_set_dma_mode(ide_drive_t *drive, const u8 speed) cris_ide_set_speed(TYPE_DMA, 0, strobe, hold); } -void __init -init_e100_ide (void) +static int __init init_e100_ide(void) { hw_regs_t hw; - int ide_offsets[IDE_NR_PORTS]; - int h; - int i; + int ide_offsets[IDE_NR_PORTS], h, i; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; printk("ide: ETRAX FS built-in ATA DMA controller\n"); @@ -778,9 +775,11 @@ init_e100_ide (void) ide_offsets, 0, 0, cris_ide_ack_intr, ide_default_irq(0)); - ide_register_hw(&hw, NULL, 1, &hwif); + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); if (hwif == NULL) continue; + ide_init_port_data(hwif, hwif->index); + ide_init_port_hw(hwif, &hw); hwif->mmio = 1; hwif->chipset = ide_etrax100; hwif->set_pio_mode = &cris_set_pio_mode; @@ -789,6 +788,7 @@ init_e100_ide (void) hwif->ata_output_data = &cris_ide_output_data; hwif->atapi_input_bytes = &cris_atapi_input_bytes; hwif->atapi_output_bytes = &cris_atapi_output_bytes; + hwif->dma_host_set = &cris_dma_host_set; hwif->ide_dma_end = &cris_dma_end; hwif->dma_setup = &cris_dma_setup; hwif->dma_exec_cmd = &cris_dma_exec_cmd; @@ -799,9 +799,6 @@ init_e100_ide (void) hwif->OUTBSYNC = &cris_ide_outbsync; hwif->INB = &cris_ide_inb; hwif->INW = &cris_ide_inw; - hwif->dma_host_off = &cris_dma_off; - hwif->dma_host_on = &cris_dma_on; - hwif->dma_off_quietly = &cris_dma_off; hwif->cbl = ATA_CBL_PATA40; hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; hwif->pio_mask = ATA_PIO4, @@ -809,6 +806,8 @@ init_e100_ide (void) hwif->drives[1].autotune = 1; hwif->ultra_mask = cris_ultra_mask; hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */ + + idx[h] = hwif->index; } /* Reset pulse */ @@ -821,14 +820,12 @@ init_e100_ide (void) cris_ide_set_speed(TYPE_PIO, ATA_PIO4_SETUP, ATA_PIO4_STROBE, ATA_PIO4_HOLD); cris_ide_set_speed(TYPE_DMA, 0, ATA_DMA2_STROBE, ATA_DMA2_HOLD); cris_ide_set_speed(TYPE_UDMA, ATA_UDMA2_CYC, ATA_UDMA2_DVS, 0); -} -static int cris_dma_on (ide_drive_t *drive) -{ + ide_device_add(idx); + return 0; } - static cris_dma_descr_type mydescr __attribute__ ((__aligned__(16))); /* @@ -1060,3 +1057,5 @@ static void cris_dma_start(ide_drive_t *drive) LED_DISK_READ(1); } } + +module_init(init_e100_ide); diff --git a/drivers/ide/h8300/Makefile b/drivers/ide/h8300/Makefile new file mode 100644 index 00000000000..5eba16f423f --- /dev/null +++ b/drivers/ide/h8300/Makefile @@ -0,0 +1,2 @@ + +obj-$(CONFIG_IDE_H8300) += ide-h8300.o diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index 4a49b5c59ac..4f6d0191cf6 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -84,11 +84,12 @@ static inline void hwif_setup(ide_hwif_t *hwif) hwif->INSL = NULL; } -void __init h8300_ide_init(void) +static int __init h8300_ide_init(void) { hw_regs_t hw; ide_hwif_t *hwif; - int idx; + int index; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300")) goto out_busy; @@ -100,16 +101,28 @@ void __init h8300_ide_init(void) hw_setup(&hw); /* register if */ - idx = ide_register_hw(&hw, NULL, 1, &hwif); - if (idx == -1) { + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif == NULL) { printk(KERN_ERR "ide-h8300: IDE I/F register failed\n"); - return; + return -ENOENT; } + index = hwif->index; + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); hwif_setup(hwif); - printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", idx); - return; + printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", index); + + idx[0] = index; + + ide_device_add(idx); + + return 0; out_busy: printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n"); + + return -EBUSY; } + +module_init(h8300_ide_init); diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index e0bb0cfa7bd..e888fc35b27 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -386,7 +386,7 @@ static int taskfile_load_raw(ide_drive_t *drive, /* convert gtf to IDE Taskfile */ memcpy(&args.tf_array[7], >f->tfa, 7); - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; if (ide_noacpitfs) { DEBPRINT("_GTF execution disabled\n"); diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index d8fdd865dea..717e114ced5 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -201,7 +201,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, memset(&task, 0, sizeof(task)); task.tf_flags = IDE_TFLAG_NO_SELECT_MASK; /* FIXME? */ - task.tf_flags |= (IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE); + task.tf_flags |= (IDE_TFLAG_TF | IDE_TFLAG_DEVICE); if (drive->select.b.lba) { if (lba48) { @@ -219,13 +219,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, tf->lbal = (u8) block; tf->lbam = (u8)(block >> 8); tf->lbah = (u8)(block >> 16); -#ifdef DEBUG - printk("%s: 0x%02x%02x 0x%02x%02x%02x%02x%02x%02x\n", - drive->name, tf->hob_nsect, tf->nsect, - tf->hob_lbah, tf->hob_lbam, tf->hob_lbal, - tf->lbah, tf->lbam, tf->lbal); -#endif - task.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB); + + task.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB); } else { tf->nsect = nsectors & 0xff; tf->lbal = block; @@ -319,9 +314,9 @@ static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48) else tf->command = WIN_READ_NATIVE_MAX; tf->device = ATA_LBA; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; if (lba48) - args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB); + args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB); /* submit command request */ ide_no_data_taskfile(drive, &args); @@ -358,9 +353,9 @@ static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48) tf->command = WIN_SET_MAX; } tf->device |= ATA_LBA; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; if (lba48) - args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB); + args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_HOB); /* submit command request */ ide_no_data_taskfile(drive, &args); /* if OK, compute maximum address value */ @@ -500,7 +495,7 @@ static int smart_enable(ide_drive_t *drive) tf->lbam = SMART_LCYL_PASS; tf->lbah = SMART_HCYL_PASS; tf->command = WIN_SMART; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; return ide_no_data_taskfile(drive, &args); } @@ -515,7 +510,7 @@ static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd) tf->lbam = SMART_LCYL_PASS; tf->lbah = SMART_HCYL_PASS; tf->command = WIN_SMART; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; args.data_phase = TASKFILE_IN; (void) smart_enable(drive); return ide_raw_taskfile(drive, &args, buf, 1); @@ -625,8 +620,10 @@ static int set_multcount(ide_drive_t *drive, int arg) if (drive->special.b.set_multmode) return -EBUSY; + ide_init_drive_cmd (&rq); - rq.cmd_type = REQ_TYPE_ATA_CMD; + rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + drive->mult_req = arg; drive->special.b.set_multmode = 1; (void) ide_do_drive_cmd (drive, &rq, ide_wait); @@ -694,7 +691,7 @@ static int write_cache(ide_drive_t *drive, int arg) args.tf.feature = arg ? SETFEATURES_EN_WCACHE : SETFEATURES_DIS_WCACHE; args.tf.command = WIN_SETFEATURES; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; err = ide_no_data_taskfile(drive, &args); if (err == 0) drive->wcache = arg; @@ -714,7 +711,7 @@ static int do_idedisk_flushcache (ide_drive_t *drive) args.tf.command = WIN_FLUSH_CACHE_EXT; else args.tf.command = WIN_FLUSH_CACHE; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; return ide_no_data_taskfile(drive, &args); } @@ -729,7 +726,7 @@ static int set_acoustic (ide_drive_t *drive, int arg) args.tf.feature = arg ? SETFEATURES_EN_AAM : SETFEATURES_DIS_AAM; args.tf.nsect = arg; args.tf.command = WIN_SETFEATURES; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; ide_no_data_taskfile(drive, &args); drive->acoustic = arg; return 0; @@ -766,7 +763,6 @@ static void idedisk_add_settings(ide_drive_t *drive) ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, &drive->bios_head, NULL); ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1, &drive->bios_sect, NULL); ide_add_setting(drive, "address", SETTING_RW, TYPE_BYTE, 0, 2, 1, 1, &drive->addressing, set_lba_addressing); - ide_add_setting(drive, "bswap", SETTING_READ, TYPE_BYTE, 0, 1, 1, 1, &drive->bswap, NULL); ide_add_setting(drive, "multcount", SETTING_RW, TYPE_BYTE, 0, id->max_multsect, 1, 1, &drive->mult_count, set_multcount); ide_add_setting(drive, "nowerr", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->nowerr, set_nowerr); ide_add_setting(drive, "lun", SETTING_RW, TYPE_INT, 0, 7, 1, 1, &drive->lun, NULL); @@ -975,6 +971,17 @@ static ide_driver_t idedisk_driver = { #endif }; +static int idedisk_set_doorlock(ide_drive_t *drive, int on) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf.command = on ? WIN_DOORLOCK : WIN_DOORUNLOCK; + task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; + + return ide_no_data_taskfile(drive, &task); +} + static int idedisk_open(struct inode *inode, struct file *filp) { struct gendisk *disk = inode->i_bdev->bd_disk; @@ -989,17 +996,13 @@ static int idedisk_open(struct inode *inode, struct file *filp) idkp->openers++; if (drive->removable && idkp->openers == 1) { - ide_task_t args; - memset(&args, 0, sizeof(ide_task_t)); - args.tf.command = WIN_DOORLOCK; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; check_disk_change(inode->i_bdev); /* * Ignore the return code from door_lock, * since the open() has already succeeded, * and the door_lock is irrelevant at this point. */ - if (drive->doorlocking && ide_no_data_taskfile(drive, &args)) + if (drive->doorlocking && idedisk_set_doorlock(drive, 1)) drive->doorlocking = 0; } return 0; @@ -1015,11 +1018,7 @@ static int idedisk_release(struct inode *inode, struct file *filp) ide_cacheflush_p(drive); if (drive->removable && idkp->openers == 1) { - ide_task_t args; - memset(&args, 0, sizeof(ide_task_t)); - args.tf.command = WIN_DOORUNLOCK; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; - if (drive->doorlocking && ide_no_data_taskfile(drive, &args)) + if (drive->doorlocking && idedisk_set_doorlock(drive, 0)) drive->doorlocking = 0; } diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 18c78ad2b31..5bf32038dc4 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -153,13 +153,7 @@ ide_startstop_t ide_dma_intr (ide_drive_t *drive) if (!dma_stat) { struct request *rq = HWGROUP(drive)->rq; - if (rq->rq_disk) { - ide_driver_t *drv; - - drv = *(ide_driver_t **)rq->rq_disk->private_data; - drv->end_request(drive, 1, rq->nr_sectors); - } else - ide_end_request(drive, 1, rq->nr_sectors); + task_end_request(drive, rq, stat); return ide_stopped; } printk(KERN_ERR "%s: dma_intr: bad DMA status (dma_stat=%x)\n", @@ -408,23 +402,29 @@ static int dma_timer_expiry (ide_drive_t *drive) } /** - * ide_dma_host_off - Generic DMA kill + * ide_dma_host_set - Enable/disable DMA on a host * @drive: drive to control * - * Perform the generic IDE controller DMA off operation. This - * works for most IDE bus mastering controllers + * Enable/disable DMA on an IDE controller following generic + * bus-mastering IDE controller behaviour. */ -void ide_dma_host_off(ide_drive_t *drive) +void ide_dma_host_set(ide_drive_t *drive, int on) { ide_hwif_t *hwif = HWIF(drive); u8 unit = (drive->select.b.unit & 0x01); u8 dma_stat = hwif->INB(hwif->dma_status); - hwif->OUTB((dma_stat & ~(1<<(5+unit))), hwif->dma_status); + if (on) + dma_stat |= (1 << (5 + unit)); + else + dma_stat &= ~(1 << (5 + unit)); + + hwif->OUTB(dma_stat, hwif->dma_status); } -EXPORT_SYMBOL(ide_dma_host_off); +EXPORT_SYMBOL_GPL(ide_dma_host_set); +#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ /** * ide_dma_off_quietly - Generic DMA kill @@ -438,11 +438,10 @@ void ide_dma_off_quietly(ide_drive_t *drive) drive->using_dma = 0; ide_toggle_bounce(drive, 0); - drive->hwif->dma_host_off(drive); + drive->hwif->dma_host_set(drive, 0); } EXPORT_SYMBOL(ide_dma_off_quietly); -#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ /** * ide_dma_off - disable DMA on a device @@ -455,52 +454,29 @@ EXPORT_SYMBOL(ide_dma_off_quietly); void ide_dma_off(ide_drive_t *drive) { printk(KERN_INFO "%s: DMA disabled\n", drive->name); - drive->hwif->dma_off_quietly(drive); + ide_dma_off_quietly(drive); } EXPORT_SYMBOL(ide_dma_off); -#ifdef CONFIG_BLK_DEV_IDEDMA_PCI -/** - * ide_dma_host_on - Enable DMA on a host - * @drive: drive to enable for DMA - * - * Enable DMA on an IDE controller following generic bus mastering - * IDE controller behaviour - */ - -void ide_dma_host_on(ide_drive_t *drive) -{ - if (drive->using_dma) { - ide_hwif_t *hwif = HWIF(drive); - u8 unit = (drive->select.b.unit & 0x01); - u8 dma_stat = hwif->INB(hwif->dma_status); - - hwif->OUTB((dma_stat|(1<<(5+unit))), hwif->dma_status); - } -} - -EXPORT_SYMBOL(ide_dma_host_on); - /** - * __ide_dma_on - Enable DMA on a device + * ide_dma_on - Enable DMA on a device * @drive: drive to enable DMA on * * Enable IDE DMA for a device on this IDE controller. */ - -int __ide_dma_on (ide_drive_t *drive) + +void ide_dma_on(ide_drive_t *drive) { drive->using_dma = 1; ide_toggle_bounce(drive, 1); - drive->hwif->dma_host_on(drive); - - return 0; + drive->hwif->dma_host_set(drive, 1); } -EXPORT_SYMBOL(__ide_dma_on); +EXPORT_SYMBOL(ide_dma_on); +#ifdef CONFIG_BLK_DEV_IDEDMA_PCI /** * ide_dma_setup - begin a DMA phase * @drive: target device @@ -755,6 +731,7 @@ EXPORT_SYMBOL_GPL(ide_find_dma_mode); static int ide_tune_dma(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; u8 speed; if (noautodma || drive->nodma || (drive->id->capability & 1) == 0) @@ -767,15 +744,21 @@ static int ide_tune_dma(ide_drive_t *drive) if (ide_id_dma_bug(drive)) return 0; - if (drive->hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA) + if (hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA) return config_drive_for_dma(drive); speed = ide_max_dma_mode(drive); - if (!speed) - return 0; + if (!speed) { + /* is this really correct/needed? */ + if ((hwif->host_flags & IDE_HFLAG_CY82C693) && + ide_dma_good_drive(drive)) + return 1; + else + return 0; + } - if (drive->hwif->host_flags & IDE_HFLAG_NO_SET_MODE) + if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) return 0; if (ide_set_dma_mode(drive, speed)) @@ -820,7 +803,6 @@ err_out: int ide_set_dma(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; int rc; /* @@ -829,13 +811,15 @@ int ide_set_dma(ide_drive_t *drive) * things, if not checked and cleared. * PARANOIA!!! */ - hwif->dma_off_quietly(drive); + ide_dma_off_quietly(drive); rc = ide_dma_check(drive); if (rc) return rc; - return hwif->ide_dma_on(drive); + ide_dma_on(drive); + + return 0; } #ifdef CONFIG_BLK_DEV_IDEDMA_PCI @@ -972,14 +956,8 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports) if (!(hwif->dma_prdtable)) hwif->dma_prdtable = (hwif->dma_base + 4); - if (!hwif->dma_off_quietly) - hwif->dma_off_quietly = &ide_dma_off_quietly; - if (!hwif->dma_host_off) - hwif->dma_host_off = &ide_dma_host_off; - if (!hwif->ide_dma_on) - hwif->ide_dma_on = &__ide_dma_on; - if (!hwif->dma_host_on) - hwif->dma_host_on = &ide_dma_host_on; + if (!hwif->dma_host_set) + hwif->dma_host_set = &ide_dma_host_set; if (!hwif->dma_setup) hwif->dma_setup = &ide_dma_setup; if (!hwif->dma_exec_cmd) diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index 0f72b98d727..bb30c29f6ec 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -14,10 +14,16 @@ static int __init ide_generic_init(void) { + u8 idx[MAX_HWIFS]; + int i; + if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET]) ide_get_lock(NULL, NULL); /* for atari only */ - (void)ideprobe_init(); + for (i = 0; i < MAX_HWIFS; i++) + idx[i] = ide_hwifs[i].present ? 0xff : i; + + ide_device_add_all(idx); if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET]) ide_release_lock(); /* for atari only */ diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 2711b5a6962..6f8f544392a 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -75,7 +75,7 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq, */ if (drive->state == DMA_PIO_RETRY && drive->retry_pio <= 3) { drive->state = 0; - HWGROUP(drive)->hwif->ide_dma_on(drive); + ide_dma_on(drive); } if (!end_that_request_chunk(rq, uptodate, nr_bytes)) { @@ -219,7 +219,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * * we could be smarter and check for current xfer_speed * in struct drive etc... */ - if (drive->hwif->ide_dma_on == NULL) + if (drive->hwif->dma_host_set == NULL) break; /* * TODO: respect ->using_dma setting @@ -231,7 +231,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request * return ide_stopped; out_do_tf: - args->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args->tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; args->data_phase = TASKFILE_NO_DATA; return do_rw_taskfile(drive, args); } @@ -354,7 +354,6 @@ void ide_tf_read(ide_drive_t *drive, ide_task_t *task) void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) { - ide_hwif_t *hwif = HWIF(drive); unsigned long flags; struct request *rq; @@ -362,17 +361,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) rq = HWGROUP(drive)->rq; spin_unlock_irqrestore(&ide_lock, flags); - if (rq->cmd_type == REQ_TYPE_ATA_CMD) { - u8 *args = (u8 *) rq->buffer; - if (rq->errors == 0) - rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT); - - if (args) { - args[0] = stat; - args[1] = err; - args[2] = hwif->INB(IDE_NSECTOR_REG); - } - } else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { ide_task_t *args = (ide_task_t *) rq->special; if (rq->errors == 0) rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT); @@ -383,10 +372,6 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) tf->error = err; tf->status = stat; - args->tf_flags |= (IDE_TFLAG_IN_TF|IDE_TFLAG_IN_DEVICE); - if (args->tf_flags & IDE_TFLAG_LBA48) - args->tf_flags |= IDE_TFLAG_IN_HOB; - ide_tf_read(drive, args); } } else if (blk_pm_request(rq)) { @@ -626,42 +611,6 @@ ide_startstop_t ide_abort(ide_drive_t *drive, const char *msg) return __ide_abort(drive, rq); } -/** - * drive_cmd_intr - drive command completion interrupt - * @drive: drive the completion interrupt occurred on - * - * drive_cmd_intr() is invoked on completion of a special DRIVE_CMD. - * We do any necessary data reading and then wait for the drive to - * go non busy. At that point we may read the error data and complete - * the request - */ - -static ide_startstop_t drive_cmd_intr (ide_drive_t *drive) -{ - struct request *rq = HWGROUP(drive)->rq; - ide_hwif_t *hwif = HWIF(drive); - u8 *args = (u8 *) rq->buffer; - u8 stat = hwif->INB(IDE_STATUS_REG); - int retries = 10; - - local_irq_enable_in_hardirq(); - if (rq->cmd_type == REQ_TYPE_ATA_CMD && - (stat & DRQ_STAT) && args && args[3]) { - u8 io_32bit = drive->io_32bit; - drive->io_32bit = 0; - hwif->ata_input_data(drive, &args[4], args[3] * SECTOR_WORDS); - drive->io_32bit = io_32bit; - while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--) - udelay(100); - } - - if (!OK_STAT(stat, READY_STAT, BAD_STAT)) - return ide_error(drive, "drive_cmd", stat); - /* calls ide_end_drive_cmd */ - ide_end_drive_cmd(drive, stat, hwif->INB(IDE_ERROR_REG)); - return ide_stopped; -} - static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf) { tf->nsect = drive->sect; @@ -710,7 +659,7 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive) return ide_stopped; } - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE | + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE | IDE_TFLAG_CUSTOM_HANDLER; do_rw_taskfile(drive, &args); @@ -787,7 +736,7 @@ static ide_startstop_t do_special (ide_drive_t *drive) if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) { if (keep_dma) - hwif->ide_dma_on(drive); + ide_dma_on(drive); } } @@ -847,16 +796,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, struct request *rq) { ide_hwif_t *hwif = HWIF(drive); - u8 *args = rq->buffer; - ide_task_t ltask; - struct ide_taskfile *tf = <ask.tf; - - if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - ide_task_t *task = rq->special; - - if (task == NULL) - goto done; + ide_task_t *task = rq->special; + if (task) { hwif->data_phase = task->data_phase; switch (hwif->data_phase) { @@ -873,33 +815,6 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, return do_rw_taskfile(drive, task); } - if (args == NULL) - goto done; - - memset(<ask, 0, sizeof(ltask)); - if (rq->cmd_type == REQ_TYPE_ATA_CMD) { -#ifdef DEBUG - printk("%s: DRIVE_CMD\n", drive->name); -#endif - tf->feature = args[2]; - if (args[0] == WIN_SMART) { - tf->nsect = args[3]; - tf->lbal = args[1]; - tf->lbam = 0x4f; - tf->lbah = 0xc2; - ltask.tf_flags = IDE_TFLAG_OUT_TF; - } else { - tf->nsect = args[1]; - ltask.tf_flags = IDE_TFLAG_OUT_FEATURE | - IDE_TFLAG_OUT_NSECT; - } - } - tf->command = args[0]; - ide_tf_load(drive, <ask); - ide_execute_command(drive, args[0], &drive_cmd_intr, WAIT_WORSTCASE, NULL); - return ide_started; - -done: /* * NULL is actually a valid way of waiting for * all current requests to be flushed from the queue. @@ -939,8 +854,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq) if (rc) printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); SELECT_DRIVE(drive); - if (IDE_CONTROL_REG) - HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG); + ide_set_irq(drive, 1); rc = ide_wait_not_busy(HWIF(drive), 100000); if (rc) printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); @@ -1004,8 +918,7 @@ static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) if (drive->current_speed == 0xff) ide_config_drive_speed(drive, drive->desired_speed); - if (rq->cmd_type == REQ_TYPE_ATA_CMD || - rq->cmd_type == REQ_TYPE_ATA_TASKFILE) + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) return execute_drive_cmd(drive, rq); else if (blk_pm_request(rq)) { struct request_pm_state *pm = rq->data; @@ -1213,15 +1126,13 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq) } again: hwif = HWIF(drive); - if (hwgroup->hwif->sharing_irq && - hwif != hwgroup->hwif && - hwif->io_ports[IDE_CONTROL_OFFSET]) { + if (hwgroup->hwif->sharing_irq && hwif != hwgroup->hwif) { /* * set nIEN for previous hwif, drives in the * quirk_list may not like intr setups/cleanups */ if (drive->quirk_list != 1) - hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG); + ide_set_irq(drive, 0); } hwgroup->hwif = hwif; hwgroup->drive = drive; @@ -1334,7 +1245,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) */ drive->retry_pio++; drive->state = DMA_PIO_RETRY; - hwif->dma_off_quietly(drive); + ide_dma_off_quietly(drive); /* * un-busy drive etc (hwgroup->busy is cleared on return) and @@ -1679,7 +1590,6 @@ irqreturn_t ide_intr (int irq, void *dev_id) void ide_init_drive_cmd (struct request *rq) { memset(rq, 0, sizeof(*rq)); - rq->cmd_type = REQ_TYPE_ATA_CMD; rq->ref_count = 1; } diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index c97c0719ddf..e2a7e95e163 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -619,7 +619,7 @@ no_80w: int ide_ata66_check (ide_drive_t *drive, ide_task_t *args) { if (args->tf.command == WIN_SETFEATURES && - args->tf.lbal > XFER_UDMA_2 && + args->tf.nsect > XFER_UDMA_2 && args->tf.feature == SETFEATURES_XFER) { if (eighty_ninty_three(drive) == 0) { printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot " @@ -639,7 +639,7 @@ int ide_ata66_check (ide_drive_t *drive, ide_task_t *args) int set_transfer (ide_drive_t *drive, ide_task_t *args) { if (args->tf.command == WIN_SETFEATURES && - args->tf.lbal >= XFER_SW_DMA_0 && + args->tf.nsect >= XFER_SW_DMA_0 && args->tf.feature == SETFEATURES_XFER && (drive->id->dma_ultra || drive->id->dma_mword || @@ -688,8 +688,7 @@ int ide_driveid_update(ide_drive_t *drive) */ SELECT_MASK(drive, 1); - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl,IDE_CONTROL_REG); + ide_set_irq(drive, 1); msleep(50); hwif->OUTB(WIN_IDENTIFY, IDE_COMMAND_REG); timeout = jiffies + WAIT_WORSTCASE; @@ -742,8 +741,8 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) // msleep(50); #ifdef CONFIG_BLK_DEV_IDEDMA - if (hwif->ide_dma_on) /* check if host supports DMA */ - hwif->dma_host_off(drive); + if (hwif->dma_host_set) /* check if host supports DMA */ + hwif->dma_host_set(drive, 0); #endif /* Skip setting PIO flow-control modes on pre-EIDE drives */ @@ -772,13 +771,12 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) SELECT_DRIVE(drive); SELECT_MASK(drive, 0); udelay(1); - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl | 2, IDE_CONTROL_REG); + ide_set_irq(drive, 0); hwif->OUTB(speed, IDE_NSECTOR_REG); hwif->OUTB(SETFEATURES_XFER, IDE_FEATURE_REG); hwif->OUTBSYNC(drive, WIN_SETFEATURES, IDE_COMMAND_REG); - if ((IDE_CONTROL_REG) && (drive->quirk_list == 2)) - hwif->OUTB(drive->ctl, IDE_CONTROL_REG); + if (drive->quirk_list == 2) + ide_set_irq(drive, 1); error = __ide_wait_stat(drive, drive->ready_stat, BUSY_STAT|DRQ_STAT|ERR_STAT, @@ -799,10 +797,11 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) skip: #ifdef CONFIG_BLK_DEV_IDEDMA - if (speed >= XFER_SW_DMA_0) - hwif->dma_host_on(drive); - else if (hwif->ide_dma_on) /* check if host supports DMA */ - hwif->dma_off_quietly(drive); + if ((speed >= XFER_SW_DMA_0 || (hwif->host_flags & IDE_HFLAG_VDMA)) && + drive->using_dma) + hwif->dma_host_set(drive, 1); + else if (hwif->dma_host_set) /* check if host supports DMA */ + ide_dma_off_quietly(drive); #endif switch(speed) { @@ -1012,10 +1011,10 @@ static void check_dma_crc(ide_drive_t *drive) { #ifdef CONFIG_BLK_DEV_IDEDMA if (drive->crc_count) { - drive->hwif->dma_off_quietly(drive); + ide_dma_off_quietly(drive); ide_set_xfer_rate(drive, ide_auto_reduce_xfer(drive)); if (drive->current_speed >= XFER_SW_DMA_0) - (void) HWIF(drive)->ide_dma_on(drive); + ide_dma_on(drive); } else ide_dma_off(drive); #endif diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index a3bd8e8ed6b..9b44fbdfe41 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -454,8 +454,7 @@ int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) static void ide_dump_opcode(ide_drive_t *drive) { struct request *rq; - u8 opcode = 0; - int found = 0; + ide_task_t *task = NULL; spin_lock(&ide_lock); rq = NULL; @@ -464,25 +463,15 @@ static void ide_dump_opcode(ide_drive_t *drive) spin_unlock(&ide_lock); if (!rq) return; - if (rq->cmd_type == REQ_TYPE_ATA_CMD) { - char *args = rq->buffer; - if (args) { - opcode = args[0]; - found = 1; - } - } else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - ide_task_t *args = rq->special; - if (args) { - opcode = args->tf.command; - found = 1; - } - } + + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) + task = rq->special; printk("ide: failed opcode was: "); - if (!found) - printk("unknown\n"); + if (task == NULL) + printk(KERN_CONT "unknown\n"); else - printk("0x%02x\n", opcode); + printk(KERN_CONT "0x%02x\n", task->tf.command); } u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48) diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index e245521af7b..cbbb0f75be9 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -31,7 +31,6 @@ static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id { hw_regs_t hw; ide_hwif_t *hwif; - int index; if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) return -1; @@ -41,11 +40,19 @@ static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id pnp_port_start(dev, 1)); hw.irq = pnp_irq(dev, 0); - index = ide_register_hw(&hw, NULL, 1, &hwif); + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + u8 index = hwif->index; + u8 idx[4] = { index, 0xff, 0xff, 0xff }; + + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); - if (index != -1) { - printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index); + printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index); pnp_set_drvdata(dev,hwif); + + ide_device_add(idx); + return 0; } @@ -68,12 +75,15 @@ static struct pnp_driver idepnp_driver = { .remove = idepnp_remove, }; -void __init pnpide_init(void) +static int __init pnpide_init(void) { - pnp_register_driver(&idepnp_driver); + return pnp_register_driver(&idepnp_driver); } -void __exit pnpide_exit(void) +static void __exit pnpide_exit(void) { pnp_unregister_driver(&idepnp_driver); } + +module_init(pnpide_init); +module_exit(pnpide_exit); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 0379d1f697c..edf650b20c6 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -235,9 +235,6 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) drive->media = ide_disk; printk("%s DISK drive\n", (id->config == 0x848a) ? "CFA" : "ATA" ); - if (hwif->quirkproc) - drive->quirk_list = hwif->quirkproc(drive); - return; err_misc: @@ -353,22 +350,19 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) * the irq handler isn't expecting. */ if (IDE_CONTROL_REG) { - u8 ctl = drive->ctl | 2; if (!hwif->irq) { autoprobe = 1; cookie = probe_irq_on(); - /* enable device irq */ - ctl &= ~2; } - hwif->OUTB(ctl, IDE_CONTROL_REG); + ide_set_irq(drive, autoprobe); } retval = actual_try_to_identify(drive, cmd); if (autoprobe) { int irq; - /* mask device irq */ - hwif->OUTB(drive->ctl|2, IDE_CONTROL_REG); + + ide_set_irq(drive, 0); /* clear drive IRQ */ (void) hwif->INB(IDE_STATUS_REG); udelay(5); @@ -388,6 +382,20 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) return retval; } +static int ide_busy_sleep(ide_hwif_t *hwif) +{ + unsigned long timeout = jiffies + WAIT_WORSTCASE; + u8 stat; + + do { + msleep(50); + stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]); + if ((stat & BUSY_STAT) == 0) + return 0; + } while (time_before(jiffies, timeout)); + + return 1; +} /** * do_probe - probe an IDE device @@ -456,7 +464,6 @@ static int do_probe (ide_drive_t *drive, u8 cmd) if ((rc == 1 && cmd == WIN_PIDENTIFY) && ((drive->autotune == IDE_TUNE_DEFAULT) || (drive->autotune == IDE_TUNE_AUTO))) { - unsigned long timeout; printk("%s: no response (status = 0x%02x), " "resetting drive\n", drive->name, hwif->INB(IDE_STATUS_REG)); @@ -464,10 +471,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) hwif->OUTB(drive->select.all, IDE_SELECT_REG); msleep(50); hwif->OUTB(WIN_SRST, IDE_COMMAND_REG); - timeout = jiffies; - while (((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && - time_before(jiffies, timeout + WAIT_WORSTCASE)) - msleep(50); + (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } if (rc == 1) @@ -495,20 +499,16 @@ static int do_probe (ide_drive_t *drive, u8 cmd) static void enable_nest (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - unsigned long timeout; printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); hwif->OUTB(EXABYTE_ENABLE_NEST, IDE_COMMAND_REG); - timeout = jiffies + WAIT_WORSTCASE; - do { - if (time_after(jiffies, timeout)) { - printk("failed (timeout)\n"); - return; - } - msleep(50); - } while ((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT); + + if (ide_busy_sleep(hwif)) { + printk(KERN_CONT "failed (timeout)\n"); + return; + } msleep(50); @@ -656,8 +656,7 @@ static int wait_hwif_ready(ide_hwif_t *hwif) /* Ignore disks that we will not probe for later. */ if (!drive->noprobe || drive->present) { SELECT_DRIVE(drive); - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl, IDE_CONTROL_REG); + ide_set_irq(drive, 1); mdelay(2); rc = ide_wait_not_busy(hwif, 35000); if (rc) @@ -676,19 +675,18 @@ out: /** * ide_undecoded_slave - look for bad CF adapters - * @hwif: interface + * @drive1: drive * * Analyse the drives on the interface and attempt to decide if we * have the same drive viewed twice. This occurs with crap CF adapters * and PCMCIA sometimes. */ -void ide_undecoded_slave(ide_hwif_t *hwif) +void ide_undecoded_slave(ide_drive_t *drive1) { - ide_drive_t *drive0 = &hwif->drives[0]; - ide_drive_t *drive1 = &hwif->drives[1]; + ide_drive_t *drive0 = &drive1->hwif->drives[0]; - if (drive0->present == 0 || drive1->present == 0) + if ((drive1->dn & 1) == 0 || drive0->present == 0) return; /* If the models don't match they are not the same product */ @@ -791,18 +789,11 @@ static void probe_hwif(ide_hwif_t *hwif) } } if (hwif->io_ports[IDE_CONTROL_OFFSET] && hwif->reset) { - unsigned long timeout = jiffies + WAIT_WORSTCASE; - u8 stat; - printk(KERN_WARNING "%s: reset\n", hwif->name); hwif->OUTB(12, hwif->io_ports[IDE_CONTROL_OFFSET]); udelay(10); hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]); - do { - msleep(50); - stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]); - } while ((stat & BUSY_STAT) && time_after(timeout, jiffies)); - + (void)ide_busy_sleep(hwif); } local_irq_restore(flags); /* @@ -817,8 +808,12 @@ static void probe_hwif(ide_hwif_t *hwif) return; } - if (hwif->fixup) - hwif->fixup(hwif); + for (unit = 0; unit < MAX_DRIVES; unit++) { + ide_drive_t *drive = &hwif->drives[unit]; + + if (drive->present && hwif->quirkproc) + hwif->quirkproc(drive); + } for (unit = 0; unit < MAX_DRIVES; ++unit) { ide_drive_t *drive = &hwif->drives[unit]; @@ -833,7 +828,7 @@ static void probe_hwif(ide_hwif_t *hwif) drive->nice1 = 1; - if (hwif->ide_dma_on) + if (hwif->dma_host_set) ide_set_dma(drive); } } @@ -848,25 +843,6 @@ static void probe_hwif(ide_hwif_t *hwif) } } -static int hwif_init(ide_hwif_t *hwif); -static void hwif_register_devices(ide_hwif_t *hwif); - -static int probe_hwif_init(ide_hwif_t *hwif) -{ - probe_hwif(hwif); - - if (!hwif_init(hwif)) { - printk(KERN_INFO "%s: failed to initialize IDE interface\n", - hwif->name); - return -1; - } - - if (hwif->present) - hwif_register_devices(hwif); - - return 0; -} - #if MAX_HWIFS > 1 /* * save_match() is used to simplify logic in init_irq() below. @@ -1359,54 +1335,63 @@ static void hwif_register_devices(ide_hwif_t *hwif) } } -int ideprobe_init (void) +int ide_device_add_all(u8 *idx) { - unsigned int index; - int probe[MAX_HWIFS]; - - memset(probe, 0, MAX_HWIFS * sizeof(int)); - for (index = 0; index < MAX_HWIFS; ++index) - probe[index] = !ide_hwifs[index].present; - - for (index = 0; index < MAX_HWIFS; ++index) - if (probe[index]) - probe_hwif(&ide_hwifs[index]); - for (index = 0; index < MAX_HWIFS; ++index) - if (probe[index]) - hwif_init(&ide_hwifs[index]); - for (index = 0; index < MAX_HWIFS; ++index) { - if (probe[index]) { - ide_hwif_t *hwif = &ide_hwifs[index]; - if (!hwif->present) - continue; - if (hwif->chipset == ide_unknown || hwif->chipset == ide_forced) - hwif->chipset = ide_generic; - hwif_register_devices(hwif); + ide_hwif_t *hwif; + int i, rc = 0; + + for (i = 0; i < MAX_HWIFS; i++) { + if (idx[i] == 0xff) + continue; + + probe_hwif(&ide_hwifs[idx[i]]); + } + + for (i = 0; i < MAX_HWIFS; i++) { + if (idx[i] == 0xff) + continue; + + hwif = &ide_hwifs[idx[i]]; + + if (hwif_init(hwif) == 0) { + printk(KERN_INFO "%s: failed to initialize IDE " + "interface\n", hwif->name); + rc = -1; + continue; } } - for (index = 0; index < MAX_HWIFS; ++index) - if (probe[index]) - ide_proc_register_port(&ide_hwifs[index]); - return 0; -} -EXPORT_SYMBOL_GPL(ideprobe_init); + for (i = 0; i < MAX_HWIFS; i++) { + if (idx[i] == 0xff) + continue; -int ide_device_add(u8 idx[4]) -{ - int i, rc = 0; + hwif = &ide_hwifs[idx[i]]; - for (i = 0; i < 4; i++) { - if (idx[i] != 0xff) - rc |= probe_hwif_init(&ide_hwifs[idx[i]]); + if (hwif->present) { + if (hwif->chipset == ide_unknown || + hwif->chipset == ide_forced) + hwif->chipset = ide_generic; + hwif_register_devices(hwif); + } } - for (i = 0; i < 4; i++) { + for (i = 0; i < MAX_HWIFS; i++) { if (idx[i] != 0xff) ide_proc_register_port(&ide_hwifs[idx[i]]); } return rc; } +EXPORT_SYMBOL_GPL(ide_device_add_all); + +int ide_device_add(u8 idx[4]) +{ + u8 idx_all[MAX_HWIFS]; + int i; + for (i = 0; i < MAX_HWIFS; i++) + idx_all[i] = (i < 4) ? idx[i] : 0xff; + + return ide_device_add_all(idx_all); +} EXPORT_SYMBOL_GPL(ide_device_add); diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index a4007d30da5..aa663e7f46f 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -346,14 +346,20 @@ static int ide_write_setting(ide_drive_t *drive, ide_settings_t *setting, int va static int set_xfer_rate (ide_drive_t *drive, int arg) { + ide_task_t task; int err; if (arg < 0 || arg > 70) return -EINVAL; - err = ide_wait_cmd(drive, - WIN_SETFEATURES, (u8) arg, - SETFEATURES_XFER, 0, NULL); + memset(&task, 0, sizeof(task)); + task.tf.command = WIN_SETFEATURES; + task.tf.feature = SETFEATURES_XFER; + task.tf.nsect = (u8)arg; + task.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT | + IDE_TFLAG_IN_NSECT; + + err = ide_no_data_taskfile(drive, &task); if (!err && arg) { ide_set_xfer_rate(drive, (u8) arg); diff --git a/drivers/ide/ide-scan-pci.c b/drivers/ide/ide-scan-pci.c new file mode 100644 index 00000000000..7ffa332d77c --- /dev/null +++ b/drivers/ide/ide-scan-pci.c @@ -0,0 +1,121 @@ +/* + * support for probing IDE PCI devices in the PCI bus order + * + * Copyright (c) 1998-2000 Andre Hedrick <andre@linux-ide.org> + * Copyright (c) 1995-1998 Mark Lord + * + * May be copied or modified under the terms of the GNU General Public License + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/ide.h> + +/* + * Module interfaces + */ + +static int pre_init = 1; /* Before first ordered IDE scan */ +static LIST_HEAD(ide_pci_drivers); + +/* + * __ide_pci_register_driver - attach IDE driver + * @driver: pci driver + * @module: owner module of the driver + * + * Registers a driver with the IDE layer. The IDE layer arranges that + * boot time setup is done in the expected device order and then + * hands the controllers off to the core PCI code to do the rest of + * the work. + * + * Returns are the same as for pci_register_driver + */ + +int __ide_pci_register_driver(struct pci_driver *driver, struct module *module, + const char *mod_name) +{ + if (!pre_init) + return __pci_register_driver(driver, module, mod_name); + driver->driver.owner = module; + list_add_tail(&driver->node, &ide_pci_drivers); + return 0; +} +EXPORT_SYMBOL_GPL(__ide_pci_register_driver); + +/** + * ide_scan_pcidev - find an IDE driver for a device + * @dev: PCI device to check + * + * Look for an IDE driver to handle the device we are considering. + * This is only used during boot up to get the ordering correct. After + * boot up the pci layer takes over the job. + */ + +static int __init ide_scan_pcidev(struct pci_dev *dev) +{ + struct list_head *l; + struct pci_driver *d; + + list_for_each(l, &ide_pci_drivers) { + d = list_entry(l, struct pci_driver, node); + if (d->id_table) { + const struct pci_device_id *id = + pci_match_id(d->id_table, dev); + + if (id != NULL && d->probe(dev, id) >= 0) { + dev->driver = d; + pci_dev_get(dev); + return 1; + } + } + } + return 0; +} + +/** + * ide_scan_pcibus - perform the initial IDE driver scan + * + * Perform the initial bus rather than driver ordered scan of the + * PCI drivers. After this all IDE pci handling becomes standard + * module ordering not traditionally ordered. + */ + +int __init ide_scan_pcibus(void) +{ + struct pci_dev *dev = NULL; + struct pci_driver *d; + struct list_head *l, *n; + + pre_init = 0; + if (!ide_scan_direction) + while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev))) + ide_scan_pcidev(dev); + else + while ((dev = pci_get_device_reverse(PCI_ANY_ID, PCI_ANY_ID, + dev))) + ide_scan_pcidev(dev); + + /* + * Hand the drivers over to the PCI layer now we + * are post init. + */ + + list_for_each_safe(l, n, &ide_pci_drivers) { + list_del(l); + d = list_entry(l, struct pci_driver, node); + if (__pci_register_driver(d, d->driver.owner, + d->driver.mod_name)) + printk(KERN_ERR "%s: failed to register %s driver\n", + __FUNCTION__, d->driver.mod_name); + } + + return 0; +} + +static int __init ide_scan_pci(void) +{ + return ide_scan_pcibus(); +} + +module_init(ide_scan_pci); diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 3cbca3f4628..d71a584f076 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1690,6 +1690,11 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) if (error) tape->failed_pc = NULL; + if (!blk_special_request(rq)) { + ide_end_request(drive, uptodate, nr_sects); + return 0; + } + spin_lock_irqsave(&tape->spinlock, flags); /* The request was a pipelined data transfer request */ diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 2d63ea9ee61..5eb6fa15dc4 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -35,34 +35,6 @@ #include <asm/uaccess.h> #include <asm/io.h> -static void ata_bswap_data (void *buffer, int wcount) -{ - u16 *p = buffer; - - while (wcount--) { - *p = *p << 8 | *p >> 8; p++; - *p = *p << 8 | *p >> 8; p++; - } -} - -static void taskfile_input_data(ide_drive_t *drive, void *buffer, u32 wcount) -{ - HWIF(drive)->ata_input_data(drive, buffer, wcount); - if (drive->bswap) - ata_bswap_data(buffer, wcount); -} - -static void taskfile_output_data(ide_drive_t *drive, void *buffer, u32 wcount) -{ - if (drive->bswap) { - ata_bswap_data(buffer, wcount); - HWIF(drive)->ata_output_data(drive, buffer, wcount); - ata_bswap_data(buffer, wcount); - } else { - HWIF(drive)->ata_output_data(drive, buffer, wcount); - } -} - void ide_tf_load(ide_drive_t *drive, ide_task_t *task) { ide_hwif_t *hwif = drive->hwif; @@ -77,10 +49,13 @@ void ide_tf_load(ide_drive_t *drive, ide_task_t *task) "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n", drive->name, tf->feature, tf->nsect, tf->lbal, tf->lbam, tf->lbah, tf->device, tf->command); + printk("%s: hob: nsect 0x%02x lbal 0x%02x " + "lbam 0x%02x lbah 0x%02x\n", + drive->name, tf->hob_nsect, tf->hob_lbal, + tf->hob_lbam, tf->hob_lbah); #endif - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl, IDE_CONTROL_REG); /* clear nIEN */ + ide_set_irq(drive, 1); if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0) SELECT_MASK(drive, 0); @@ -124,7 +99,7 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf) args.tf.command = WIN_IDENTIFY; else args.tf.command = WIN_PIDENTIFY; - args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; args.data_phase = TASKFILE_IN; return ide_raw_taskfile(drive, &args, buf, 1); } @@ -285,7 +260,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive) return ide_stopped; } -static u8 wait_drive_not_busy(ide_drive_t *drive) +u8 wait_drive_not_busy(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); int retries; @@ -293,8 +268,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive) /* * Last sector was transfered, wait until drive is ready. - * This can take up to 10 usec, but we will wait max 1 ms - * (drive_cmd_intr() waits that long). + * This can take up to 10 usec, but we will wait max 1 ms. */ for (retries = 0; retries < 100; retries++) { if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) @@ -349,9 +323,9 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write) /* do the actual data transfer */ if (write) - taskfile_output_data(drive, buf, SECTOR_WORDS); + hwif->ata_output_data(drive, buf, SECTOR_WORDS); else - taskfile_input_data(drive, buf, SECTOR_WORDS); + hwif->ata_input_data(drive, buf, SECTOR_WORDS); kunmap_atomic(buf, KM_BIO_SRC_IRQ); #ifdef CONFIG_HIGHMEM @@ -371,9 +345,18 @@ static void ide_pio_multi(ide_drive_t *drive, unsigned int write) static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, unsigned int write) { + u8 saved_io_32bit = drive->io_32bit; + if (rq->bio) /* fs request */ rq->errors = 0; + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { + ide_task_t *task = rq->special; + + if (task->tf_flags & IDE_TFLAG_IO_16BIT) + drive->io_32bit = 0; + } + touch_softlockup_watchdog(); switch (drive->hwif->data_phase) { @@ -385,6 +368,8 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, ide_pio_sector(drive, write); break; } + + drive->io_32bit = saved_io_32bit; } static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq, @@ -422,27 +407,22 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq, return ide_error(drive, s, stat); } -static void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat) +void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat) { - HWIF(drive)->cursg = NULL; - if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { - ide_task_t *task = rq->special; + u8 err = drive->hwif->INB(IDE_ERROR_REG); - if (task->tf_flags & IDE_TFLAG_FLAGGED) { - u8 err = drive->hwif->INB(IDE_ERROR_REG); - ide_end_drive_cmd(drive, stat, err); - return; - } + ide_end_drive_cmd(drive, stat, err); + return; } if (rq->rq_disk) { ide_driver_t *drv; drv = *(ide_driver_t **)rq->rq_disk->private_data;; - drv->end_request(drive, 1, rq->hard_nr_sectors); + drv->end_request(drive, 1, rq->nr_sectors); } else - ide_end_request(drive, 1, rq->hard_nr_sectors); + ide_end_request(drive, 1, rq->nr_sectors); } /* @@ -455,7 +435,7 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive) u8 stat = hwif->INB(IDE_STATUS_REG); /* new way for dealing with premature shared PCI interrupts */ - if (!OK_STAT(stat, DATA_READY, BAD_R_STAT)) { + if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) { if (stat & (ERR_STAT | DRQ_STAT)) return task_error(drive, rq, __FUNCTION__, stat); /* No data yet, so wait for another IRQ. */ @@ -468,7 +448,7 @@ static ide_startstop_t task_in_intr(ide_drive_t *drive) /* If it was the last datablock check status and finish transfer. */ if (!hwif->nleft) { stat = wait_drive_not_busy(drive); - if (!OK_STAT(stat, 0, BAD_R_STAT)) + if (!OK_STAT(stat, 0, BAD_STAT)) return task_error(drive, rq, __FUNCTION__, stat); task_end_request(drive, rq, stat); return ide_stopped; @@ -512,7 +492,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) { ide_startstop_t startstop; - if (ide_wait_stat(&startstop, drive, DATA_READY, + if (ide_wait_stat(&startstop, drive, DRQ_STAT, drive->bad_wstat, WAIT_DRQ)) { printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n", drive->name, @@ -580,7 +560,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) unsigned int taskin = 0; unsigned int taskout = 0; u16 nsect = 0; - u8 io_32bit = drive->io_32bit; char __user *buf = (char __user *)arg; // printk("IDE Taskfile ...\n"); @@ -633,9 +612,10 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) args.data_phase = req_task->data_phase; - args.tf_flags = IDE_TFLAG_OUT_DEVICE; + args.tf_flags = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE | + IDE_TFLAG_IN_TF; if (drive->addressing == 1) - args.tf_flags |= IDE_TFLAG_LBA48; + args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB); if (req_task->out_flags.all) { args.tf_flags |= IDE_TFLAG_FLAGGED; @@ -671,7 +651,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) if (req_task->in_flags.b.data) args.tf_flags |= IDE_TFLAG_IN_DATA; - drive->io_32bit = 0; switch(req_task->data_phase) { case TASKFILE_MULTI_OUT: if (!drive->mult_count) { @@ -767,41 +746,24 @@ abort: // printk("IDE Taskfile ioctl ended. rc = %i\n", err); - drive->io_32bit = io_32bit; - return err; } #endif -int ide_wait_cmd (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors, u8 *buf) -{ - struct request rq; - u8 buffer[4]; - - if (!buf) - buf = buffer; - memset(buf, 0, 4 + SECTOR_WORDS * 4 * sectors); - ide_init_drive_cmd(&rq); - rq.buffer = buf; - *buf++ = cmd; - *buf++ = nsect; - *buf++ = feature; - *buf++ = sectors; - return ide_do_drive_cmd(drive, &rq, ide_wait); -} - int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) { - int err = 0; - u8 args[4], *argbuf = args; - u8 xfer_rate = 0; - int argsize = 4; + u8 *buf = NULL; + int bufsize = 0, err = 0; + u8 args[4], xfer_rate = 0; ide_task_t tfargs; struct ide_taskfile *tf = &tfargs.tf; if (NULL == (void *) arg) { struct request rq; + ide_init_drive_cmd(&rq); + rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + return ide_do_drive_cmd(drive, &rq, ide_wait); } @@ -810,23 +772,39 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) memset(&tfargs, 0, sizeof(ide_task_t)); tf->feature = args[2]; - tf->nsect = args[3]; - tf->lbal = args[1]; + if (args[0] == WIN_SMART) { + tf->nsect = args[3]; + tf->lbal = args[1]; + tf->lbam = 0x4f; + tf->lbah = 0xc2; + tfargs.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT; + } else { + tf->nsect = args[1]; + tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE | + IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT; + } tf->command = args[0]; + tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA; if (args[3]) { - argsize = 4 + (SECTOR_WORDS * 4 * args[3]); - argbuf = kzalloc(argsize, GFP_KERNEL); - if (argbuf == NULL) + tfargs.tf_flags |= IDE_TFLAG_IO_16BIT; + bufsize = SECTOR_WORDS * 4 * args[3]; + buf = kzalloc(bufsize, GFP_KERNEL); + if (buf == NULL) return -ENOMEM; } + if (set_transfer(drive, &tfargs)) { xfer_rate = args[1]; if (ide_ata66_check(drive, &tfargs)) goto abort; } - err = ide_wait_cmd(drive, args[0], args[1], args[2], args[3], argbuf); + err = ide_raw_taskfile(drive, &tfargs, buf, args[3]); + + args[0] = tf->status; + args[1] = tf->error; + args[2] = tf->nsect; if (!err && xfer_rate) { /* active-retuning-calls future */ @@ -834,10 +812,13 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) ide_driveid_update(drive); } abort: - if (copy_to_user((void __user *)arg, argbuf, argsize)) + if (copy_to_user((void __user *)arg, &args, 4)) err = -EFAULT; - if (argsize > 4) - kfree(argbuf); + if (buf) { + if (copy_to_user((void __user *)(arg + 4), buf, bufsize)) + err = -EFAULT; + kfree(buf); + } return err; } @@ -854,7 +835,7 @@ int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) memset(&task, 0, sizeof(task)); memcpy(&task.tf_array[7], &args[1], 6); task.tf.command = args[0]; - task.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; + task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; err = ide_no_data_taskfile(drive, &task); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index c6d4f630e18..97894abd9eb 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -95,7 +95,7 @@ DEFINE_MUTEX(ide_cfg_mtx); __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); #ifdef CONFIG_IDEPCI_PCIBUS_ORDER -static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */ +int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */ #endif int noautodma = 0; @@ -116,7 +116,7 @@ EXPORT_SYMBOL(ide_hwifs); /* * Do not even *think* about calling this! */ -static void init_hwif_data(ide_hwif_t *hwif, unsigned int index) +void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) { unsigned int unit; @@ -159,6 +159,7 @@ static void init_hwif_data(ide_hwif_t *hwif, unsigned int index) init_completion(&drive->gendev_rel_comp); } } +EXPORT_SYMBOL_GPL(ide_init_port_data); static void init_hwif_default(ide_hwif_t *hwif, unsigned int index) { @@ -177,8 +178,6 @@ static void init_hwif_default(ide_hwif_t *hwif, unsigned int index) #endif } -extern void ide_arm_init(void); - /* * init_ide_data() sets reasonable default values into all fields * of all instances of the hwifs and drives, but only on the first call. @@ -210,16 +209,13 @@ static void __init init_ide_data (void) /* Initialise all interface structures */ for (index = 0; index < MAX_HWIFS; ++index) { hwif = &ide_hwifs[index]; - init_hwif_data(hwif, index); + ide_init_port_data(hwif, index); init_hwif_default(hwif, index); #if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) hwif->irq = ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); #endif } -#ifdef CONFIG_IDE_ARM - ide_arm_init(); -#endif } /** @@ -414,8 +410,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) hwif->cds = tmp_hwif->cds; #endif - hwif->fixup = tmp_hwif->fixup; - hwif->set_pio_mode = tmp_hwif->set_pio_mode; hwif->set_dma_mode = tmp_hwif->set_dma_mode; hwif->mdma_filter = tmp_hwif->mdma_filter; @@ -433,16 +427,13 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; + hwif->dma_host_set = tmp_hwif->dma_host_set; hwif->dma_setup = tmp_hwif->dma_setup; hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; hwif->dma_start = tmp_hwif->dma_start; hwif->ide_dma_end = tmp_hwif->ide_dma_end; - hwif->ide_dma_on = tmp_hwif->ide_dma_on; - hwif->dma_off_quietly = tmp_hwif->dma_off_quietly; hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq; - hwif->dma_host_on = tmp_hwif->dma_host_on; - hwif->dma_host_off = tmp_hwif->dma_host_off; hwif->dma_lost_irq = tmp_hwif->dma_lost_irq; hwif->dma_timeout = tmp_hwif->dma_timeout; @@ -614,7 +605,7 @@ void ide_unregister(unsigned int index) tmp_hwif = *hwif; /* restore hwif data to pristine status */ - init_hwif_data(hwif, index); + ide_init_port_data(hwif, index); init_hwif_default(hwif, index); ide_hwif_restore(hwif, &tmp_hwif); @@ -680,24 +671,34 @@ void ide_setup_ports ( hw_regs_t *hw, */ } +void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) +{ + memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); + hwif->irq = hw->irq; + hwif->noprobe = 0; + hwif->chipset = hw->chipset; + hwif->gendev.parent = hw->dev; + hwif->ack_intr = hw->ack_intr; +} +EXPORT_SYMBOL_GPL(ide_init_port_hw); + /** * ide_register_hw - register IDE interface * @hw: hardware registers - * @fixup: fixup function - * @initializing: set while initializing built-in drivers + * @quirkproc: quirkproc function * @hwifp: pointer to returned hwif * * Register an IDE interface, specifying exactly the registers etc. - * Set init=1 iff calling before probes have taken place. * * Returns -1 on error. */ -int ide_register_hw(hw_regs_t *hw, void (*fixup)(ide_hwif_t *), - int initializing, ide_hwif_t **hwifp) +int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), + ide_hwif_t **hwifp) { int index, retry = 1; ide_hwif_t *hwif; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; do { for (index = 0; index < MAX_HWIFS; ++index) { @@ -709,8 +710,7 @@ int ide_register_hw(hw_regs_t *hw, void (*fixup)(ide_hwif_t *), hwif = &ide_hwifs[index]; if (hwif->hold) continue; - if ((!hwif->present && !hwif->mate && !initializing) || - (!hwif->io_ports[IDE_DATA_OFFSET] && initializing)) + if (!hwif->present && hwif->mate == NULL) goto found; } for (index = 0; index < MAX_HWIFS; index++) @@ -721,29 +721,23 @@ found: if (hwif->present) ide_unregister(index); else if (!hwif->hold) { - init_hwif_data(hwif, index); + ide_init_port_data(hwif, index); init_hwif_default(hwif, index); } if (hwif->present) return -1; - memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); - hwif->irq = hw->irq; - hwif->noprobe = 0; - hwif->fixup = fixup; - hwif->chipset = hw->chipset; - hwif->gendev.parent = hw->dev; - hwif->ack_intr = hw->ack_intr; - if (initializing == 0) { - u8 idx[4] = { index, 0xff, 0xff, 0xff }; + ide_init_port_hw(hwif, hw); + hwif->quirkproc = quirkproc; - ide_device_add(idx); - } + idx[0] = index; + + ide_device_add(idx); if (hwifp) *hwifp = hwif; - return (initializing || hwif->present) ? index : -1; + return hwif->present ? index : -1; } EXPORT_SYMBOL(ide_register_hw); @@ -836,7 +830,7 @@ int set_using_dma(ide_drive_t *drive, int arg) if (!drive->id || !(drive->id->capability & 1)) goto out; - if (hwif->ide_dma_on == NULL) + if (hwif->dma_host_set == NULL) goto out; err = -EBUSY; @@ -884,7 +878,10 @@ int set_pio_mode(ide_drive_t *drive, int arg) if (drive->special.b.set_tune) return -EBUSY; + ide_init_drive_cmd(&rq); + rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + drive->tune_req = (u8) arg; drive->special.b.set_tune = 1; (void) ide_do_drive_cmd(drive, &rq, ide_wait); @@ -1066,7 +1063,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device ide_init_hwif_ports(&hw, (unsigned long) args[0], (unsigned long) args[1], NULL); hw.irq = args[2]; - if (ide_register_hw(&hw, NULL, 0, NULL) == -1) + if (ide_register_hw(&hw, NULL, NULL) == -1) return -EIO; return 0; } @@ -1227,26 +1224,12 @@ static int __init match_parm (char *s, const char *keywords[], int vals[], int m return 0; /* zero = nothing matched */ } -#ifdef CONFIG_BLK_DEV_ALI14XX extern int probe_ali14xx; -extern int ali14xx_init(void); -#endif -#ifdef CONFIG_BLK_DEV_UMC8672 extern int probe_umc8672; -extern int umc8672_init(void); -#endif -#ifdef CONFIG_BLK_DEV_DTC2278 extern int probe_dtc2278; -extern int dtc2278_init(void); -#endif -#ifdef CONFIG_BLK_DEV_HT6560B extern int probe_ht6560b; -extern int ht6560b_init(void); -#endif -#ifdef CONFIG_BLK_DEV_QD65XX extern int probe_qd65xx; -extern int qd65xx_init(void); -#endif +extern int cmd640_vlb; static int __initdata is_chipset_set[MAX_HWIFS]; @@ -1323,7 +1306,7 @@ static int __init ide_setup(char *s) if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { const char *hd_words[] = { "none", "noprobe", "nowerr", "cdrom", "nodma", - "autotune", "noautotune", "minus8", "swapdata", "bswap", + "autotune", "noautotune", "-8", "-9", "-10", "noflush", "remap", "remap63", "scsi", NULL }; unit = s[2] - 'a'; hw = unit / MAX_DRIVES; @@ -1359,10 +1342,6 @@ static int __init ide_setup(char *s) case -7: /* "noautotune" */ drive->autotune = IDE_TUNE_NOAUTO; goto obsolete_option; - case -9: /* "swapdata" */ - case -10: /* "bswap" */ - drive->bswap = 1; - goto done; case -11: /* noflush */ drive->noflush = 1; goto done; @@ -1462,11 +1441,8 @@ static int __init ide_setup(char *s) #endif #ifdef CONFIG_BLK_DEV_CMD640 case -14: /* "cmd640_vlb" */ - { - extern int cmd640_vlb; /* flag for cmd640.c */ cmd640_vlb = 1; goto done; - } #endif #ifdef CONFIG_BLK_DEV_HT6560B case -13: /* "ht6560b" */ @@ -1556,79 +1532,6 @@ done: return 1; } -extern void __init pnpide_init(void); -extern void __exit pnpide_exit(void); -extern void __init h8300_ide_init(void); - -/* - * probe_for_hwifs() finds/initializes "known" IDE interfaces - */ -static void __init probe_for_hwifs (void) -{ -#ifdef CONFIG_IDEPCI_PCIBUS_ORDER - ide_scan_pcibus(ide_scan_direction); -#endif - -#ifdef CONFIG_ETRAX_IDE - { - extern void init_e100_ide(void); - init_e100_ide(); - } -#endif /* CONFIG_ETRAX_IDE */ -#ifdef CONFIG_BLK_DEV_CMD640 - { - extern void ide_probe_for_cmd640x(void); - ide_probe_for_cmd640x(); - } -#endif /* CONFIG_BLK_DEV_CMD640 */ -#ifdef CONFIG_BLK_DEV_IDE_PMAC - { - extern int pmac_ide_probe(void); - (void)pmac_ide_probe(); - } -#endif /* CONFIG_BLK_DEV_IDE_PMAC */ -#ifdef CONFIG_BLK_DEV_GAYLE - { - extern void gayle_init(void); - gayle_init(); - } -#endif /* CONFIG_BLK_DEV_GAYLE */ -#ifdef CONFIG_BLK_DEV_FALCON_IDE - { - extern void falconide_init(void); - falconide_init(); - } -#endif /* CONFIG_BLK_DEV_FALCON_IDE */ -#ifdef CONFIG_BLK_DEV_MAC_IDE - { - extern void macide_init(void); - macide_init(); - } -#endif /* CONFIG_BLK_DEV_MAC_IDE */ -#ifdef CONFIG_BLK_DEV_Q40IDE - { - extern void q40ide_init(void); - q40ide_init(); - } -#endif /* CONFIG_BLK_DEV_Q40IDE */ -#ifdef CONFIG_BLK_DEV_BUDDHA - { - extern void buddha_init(void); - buddha_init(); - } -#endif /* CONFIG_BLK_DEV_BUDDHA */ -#ifdef CONFIG_BLK_DEV_IDEPNP - pnpide_init(); -#endif -#ifdef CONFIG_H8300 - h8300_ide_init(); -#endif -} - -/* - * Probe module - */ - EXPORT_SYMBOL(ide_lock); static int ide_bus_match(struct device *dev, struct device_driver *drv) @@ -1775,30 +1678,6 @@ static int __init ide_init(void) proc_ide_create(); -#ifdef CONFIG_BLK_DEV_ALI14XX - if (probe_ali14xx) - (void)ali14xx_init(); -#endif -#ifdef CONFIG_BLK_DEV_UMC8672 - if (probe_umc8672) - (void)umc8672_init(); -#endif -#ifdef CONFIG_BLK_DEV_DTC2278 - if (probe_dtc2278) - (void)dtc2278_init(); -#endif -#ifdef CONFIG_BLK_DEV_HT6560B - if (probe_ht6560b) - (void)ht6560b_init(); -#endif -#ifdef CONFIG_BLK_DEV_QD65XX - if (probe_qd65xx) - (void)qd65xx_init(); -#endif - - /* Probe for special PCI and other "known" interface chipsets. */ - probe_for_hwifs(); - return 0; } @@ -1834,10 +1713,6 @@ void __exit cleanup_module (void) for (index = 0; index < MAX_HWIFS; ++index) ide_unregister(index); -#ifdef CONFIG_BLK_DEV_IDEPNP - pnpide_exit(); -#endif - proc_ide_destroy(); bus_unregister(&ide_bus_type); diff --git a/drivers/ide/legacy/Makefile b/drivers/ide/legacy/Makefile index 409822349f1..7043ec7d1e0 100644 --- a/drivers/ide/legacy/Makefile +++ b/drivers/ide/legacy/Makefile @@ -1,15 +1,24 @@ +# link order is important here + obj-$(CONFIG_BLK_DEV_ALI14XX) += ali14xx.o +obj-$(CONFIG_BLK_DEV_UMC8672) += umc8672.o obj-$(CONFIG_BLK_DEV_DTC2278) += dtc2278.o obj-$(CONFIG_BLK_DEV_HT6560B) += ht6560b.o obj-$(CONFIG_BLK_DEV_QD65XX) += qd65xx.o -obj-$(CONFIG_BLK_DEV_UMC8672) += umc8672.o -obj-$(CONFIG_BLK_DEV_IDECS) += ide-cs.o +obj-$(CONFIG_BLK_DEV_GAYLE) += gayle.o +obj-$(CONFIG_BLK_DEV_FALCON_IDE) += falconide.o +obj-$(CONFIG_BLK_DEV_MAC_IDE) += macide.o +obj-$(CONFIG_BLK_DEV_Q40IDE) += q40ide.o +obj-$(CONFIG_BLK_DEV_BUDDHA) += buddha.o -obj-$(CONFIG_BLK_DEV_PLATFORM) += ide_platform.o +ifeq ($(CONFIG_BLK_DEV_IDECS), m) + obj-m += ide-cs.o +endif -# Last of all -obj-$(CONFIG_BLK_DEV_HD) += hd.o +ifeq ($(CONFIG_BLK_DEV_PLATFORM), m) + obj-m += ide_platform.o +endif EXTRA_CFLAGS := -Idrivers/ide diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c index 38c3a6d63f3..5ec0be4cbad 100644 --- a/drivers/ide/legacy/ali14xx.c +++ b/drivers/ide/legacy/ali14xx.c @@ -231,8 +231,7 @@ int probe_ali14xx = 0; module_param_named(probe, probe_ali14xx, bool, 0); MODULE_PARM_DESC(probe, "probe for ALI M14xx chipsets"); -/* Can be called directly from ide.c. */ -int __init ali14xx_init(void) +static int __init ali14xx_init(void) { if (probe_ali14xx == 0) goto out; @@ -248,9 +247,7 @@ out: return -ENODEV; } -#ifdef MODULE module_init(ali14xx_init); -#endif MODULE_AUTHOR("see local file"); MODULE_DESCRIPTION("support of ALI 14XX IDE chipsets"); diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c index 4a0be251a05..74d28e058f5 100644 --- a/drivers/ide/legacy/buddha.c +++ b/drivers/ide/legacy/buddha.c @@ -112,6 +112,7 @@ typedef enum BuddhaType_Enum { BOARD_BUDDHA, BOARD_CATWEASEL, BOARD_XSURF } BuddhaType; +static const char *buddha_board_name[] = { "Buddha", "Catweasel", "X-Surf" }; /* * Check and acknowledge the interrupt status @@ -143,11 +144,11 @@ static int xsurf_ack_intr(ide_hwif_t *hwif) * Probe for a Buddha or Catweasel IDE interface */ -void __init buddha_init(void) +static int __init buddha_init(void) { hw_regs_t hw; ide_hwif_t *hwif; - int i, index; + int i; struct zorro_dev *z = NULL; u_long buddha_board = 0; @@ -156,6 +157,8 @@ void __init buddha_init(void) while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { unsigned long board; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) { buddha_num_hwifs = BUDDHA_NUM_HWIFS; type=BOARD_BUDDHA; @@ -195,7 +198,10 @@ fail_base2: /* X-Surf doesn't have this. IRQs are always on */ if (type != BOARD_XSURF) z_writeb(0, buddha_board+BUDDHA_IRQ_MR); - + + printk(KERN_INFO "ide: %s IDE controller\n", + buddha_board_name[type]); + for(i=0;i<buddha_num_hwifs;i++) { if(type != BOARD_XSURF) { ide_setup_ports(&hw, (buddha_board+buddha_bases[i]), @@ -213,23 +219,23 @@ fail_base2: IRQ_AMIGA_PORTS); } - index = ide_register_hw(&hw, NULL, 1, &hwif); - if (index != -1) { + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + u8 index = hwif->index; + + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); + hwif->mmio = 1; - printk("ide%d: ", index); - switch(type) { - case BOARD_BUDDHA: - printk("Buddha"); - break; - case BOARD_CATWEASEL: - printk("Catweasel"); - break; - case BOARD_XSURF: - printk("X-Surf"); - break; - } - printk(" IDE interface\n"); - } + + idx[i] = index; + } } + + ide_device_add(idx); } + + return 0; } + +module_init(buddha_init); diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c index 24a845d45bd..13eee6da280 100644 --- a/drivers/ide/legacy/dtc2278.c +++ b/drivers/ide/legacy/dtc2278.c @@ -150,8 +150,7 @@ int probe_dtc2278 = 0; module_param_named(probe, probe_dtc2278, bool, 0); MODULE_PARM_DESC(probe, "probe for DTC2278xx chipsets"); -/* Can be called directly from ide.c. */ -int __init dtc2278_init(void) +static int __init dtc2278_init(void) { if (probe_dtc2278 == 0) return -ENODEV; @@ -163,9 +162,7 @@ int __init dtc2278_init(void) return 0; } -#ifdef MODULE module_init(dtc2278_init); -#endif MODULE_AUTHOR("See Local File"); MODULE_DESCRIPTION("support of DTC-2278 VLB IDE chipsets"); diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 7d7936f1b90..2860956bdcb 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -62,19 +62,31 @@ EXPORT_SYMBOL(falconide_intr_lock); * Probe for a Falcon IDE interface */ -void __init falconide_init(void) +static int __init falconide_init(void) { if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) { hw_regs_t hw; - int index; + + printk(KERN_INFO "ide: Falcon IDE controller\n"); ide_setup_ports(&hw, ATA_HD_BASE, falconide_offsets, 0, 0, NULL, // falconide_iops, IRQ_MFP_IDE); - index = ide_register_hw(&hw, NULL, 1, NULL); - if (index != -1) - printk("ide%d: Falcon IDE interface\n", index); + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + u8 index = hwif->index; + u8 idx[4] = { index, 0xff, 0xff, 0xff }; + + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); + + ide_device_add(idx); + } } + + return 0; } + +module_init(falconide_init); diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index 53331ee1e95..492fa047efc 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -110,12 +110,13 @@ static int gayle_ack_intr_a1200(ide_hwif_t *hwif) * Probe for a Gayle IDE interface (and optionally for an IDE doubler) */ -void __init gayle_init(void) +static int __init gayle_init(void) { int a4000, i; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_AMIGA) - return; + return -ENODEV; if ((a4000 = AMIGAHW_PRESENT(A4000_IDE)) || AMIGAHW_PRESENT(A1200_IDE)) goto found; @@ -125,15 +126,21 @@ void __init gayle_init(void) NULL)) goto found; #endif - return; + return -ENODEV; found: + printk(KERN_INFO "ide: Gayle IDE controller (A%d style%s)\n", + a4000 ? 4000 : 1200, +#ifdef CONFIG_BLK_DEV_IDEDOUBLER + ide_doubler ? ", IDE doubler" : +#endif + ""); + for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) { unsigned long base, ctrlport, irqport; ide_ack_intr_t *ack_intr; hw_regs_t hw; ide_hwif_t *hwif; - int index; unsigned long phys_base, res_start, res_n; if (a4000) { @@ -165,21 +172,23 @@ found: // &gayle_iops, IRQ_AMIGA_PORTS); - index = ide_register_hw(&hw, NULL, 1, &hwif); - if (index != -1) { + hwif = ide_find_port(base); + if (hwif) { + u8 index = hwif->index; + + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); + hwif->mmio = 1; - switch (i) { - case 0: - printk("ide%d: Gayle IDE interface (A%d style)\n", index, - a4000 ? 4000 : 1200); - break; -#ifdef CONFIG_BLK_DEV_IDEDOUBLER - case 1: - printk("ide%d: IDE doubler\n", index); - break; -#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ - } + + idx[i] = index; } else release_mem_region(res_start, res_n); } + + ide_device_add(idx); + + return 0; } + +module_init(gayle_init); diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c index a4245d13f11..8da5031a6d0 100644 --- a/drivers/ide/legacy/ht6560b.c +++ b/drivers/ide/legacy/ht6560b.c @@ -307,8 +307,7 @@ int probe_ht6560b = 0; module_param_named(probe, probe_ht6560b, bool, 0); MODULE_PARM_DESC(probe, "probe for HT6560B chipset"); -/* Can be called directly from ide.c. */ -int __init ht6560b_init(void) +static int __init ht6560b_init(void) { ide_hwif_t *hwif, *mate; static u8 idx[4] = { 0, 1, 0xff, 0xff }; @@ -369,9 +368,7 @@ release_region: return -ENODEV; } -#ifdef MODULE module_init(ht6560b_init); -#endif MODULE_AUTHOR("See Local File"); MODULE_DESCRIPTION("HT-6560B EIDE-controller support"); diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index 03715c05866..f4ea15b3296 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -153,7 +153,7 @@ static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq hw.irq = irq; hw.chipset = ide_pci; hw.dev = &handle->dev; - return ide_register_hw(&hw, &ide_undecoded_slave, 0, NULL); + return ide_register_hw(&hw, &ide_undecoded_slave, NULL); } /*====================================================================== diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index 7bb79f53dac..69a0fb0e564 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -28,39 +28,27 @@ static struct { int index; } hwif_prop; -static ide_hwif_t *__devinit plat_ide_locate_hwif(void __iomem *base, - void __iomem *ctrl, struct pata_platform_info *pdata, int irq, - int mmio) +static void __devinit plat_ide_setup_ports(hw_regs_t *hw, + void __iomem *base, + void __iomem *ctrl, + struct pata_platform_info *pdata, + int irq) { unsigned long port = (unsigned long)base; - ide_hwif_t *hwif = ide_find_port(port); int i; - if (hwif == NULL) - goto out; - - hwif->io_ports[IDE_DATA_OFFSET] = port; + hw->io_ports[IDE_DATA_OFFSET] = port; port += (1 << pdata->ioport_shift); for (i = IDE_ERROR_OFFSET; i <= IDE_STATUS_OFFSET; i++, port += (1 << pdata->ioport_shift)) - hwif->io_ports[i] = port; - - hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; + hw->io_ports[i] = port; - hwif->irq = irq; + hw->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; - hwif->chipset = ide_generic; + hw->irq = irq; - if (mmio) { - hwif->mmio = 1; - default_hwif_mmiops(hwif); - } - - hwif_prop.hwif = hwif; - hwif_prop.index = hwif->index; -out: - return hwif; + hw->chipset = ide_generic; } static int __devinit plat_ide_probe(struct platform_device *pdev) @@ -71,6 +59,7 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; int ret = 0; int mmio = 0; + hw_regs_t hw; pdata = pdev->dev.platform_data; @@ -106,15 +95,27 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) res_alt->start, res_alt->end - res_alt->start + 1); } - hwif = plat_ide_locate_hwif(hwif_prop.plat_ide_mapbase, - hwif_prop.plat_ide_alt_mapbase, pdata, res_irq->start, mmio); - + hwif = ide_find_port((unsigned long)hwif_prop.plat_ide_mapbase); if (!hwif) { ret = -ENODEV; goto out; } - hwif->gendev.parent = &pdev->dev; - hwif->noprobe = 0; + + memset(&hw, 0, sizeof(hw)); + plat_ide_setup_ports(&hw, hwif_prop.plat_ide_mapbase, + hwif_prop.plat_ide_alt_mapbase, + pdata, res_irq->start); + hw.dev = &pdev->dev; + + ide_init_port_hw(hwif, &hw); + + if (mmio) { + hwif->mmio = 1; + default_hwif_mmiops(hwif); + } + + hwif_prop.hwif = hwif; + hwif_prop.index = hwif->index; idx[0] = hwif->index; diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c index 5c6aa77c237..782d4c76c0e 100644 --- a/drivers/ide/legacy/macide.c +++ b/drivers/ide/legacy/macide.c @@ -77,15 +77,17 @@ int macide_ack_intr(ide_hwif_t* hwif) return 0; } +static const char *mac_ide_name[] = + { "Quadra", "Powerbook", "Powerbook Baboon" }; + /* * Probe for a Macintosh IDE interface */ -void __init macide_init(void) +static int __init macide_init(void) { hw_regs_t hw; ide_hwif_t *hwif; - int index = -1; switch (macintosh_config->ide_type) { case MAC_IDE_QUADRA: @@ -93,48 +95,50 @@ void __init macide_init(void) 0, 0, macide_ack_intr, // quadra_ide_iops, IRQ_NUBUS_F); - index = ide_register_hw(&hw, NULL, 1, &hwif); break; case MAC_IDE_PB: ide_setup_ports(&hw, IDE_BASE, macide_offsets, 0, 0, macide_ack_intr, // macide_pb_iops, IRQ_NUBUS_C); - index = ide_register_hw(&hw, NULL, 1, &hwif); break; case MAC_IDE_BABOON: ide_setup_ports(&hw, BABOON_BASE, macide_offsets, 0, 0, NULL, // macide_baboon_iops, IRQ_BABOON_1); - index = ide_register_hw(&hw, NULL, 1, &hwif); - if (index == -1) break; - if (macintosh_config->ident == MAC_MODEL_PB190) { + break; + default: + return -ENODEV; + } + + printk(KERN_INFO "ide: Macintosh %s IDE controller\n", + mac_ide_name[macintosh_config->ide_type - 1]); + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + u8 index = hwif->index; + u8 idx[4] = { index, 0xff, 0xff, 0xff }; + + ide_init_port_data(hwif, index); + ide_init_port_hw(hwif, &hw); + + if (macintosh_config->ide_type == MAC_IDE_BABOON && + macintosh_config->ident == MAC_MODEL_PB190) { /* Fix breakage in ide-disk.c: drive capacity */ /* is not initialized for drives without a */ /* hardware ID, and we can't get that without */ /* probing the drive which freezes a 190. */ - - ide_drive_t *drive = &ide_hwifs[index].drives[0]; + ide_drive_t *drive = &hwif->drives[0]; drive->capacity64 = drive->cyl*drive->head*drive->sect; - } - break; - - default: - return; - } - if (index != -1) { hwif->mmio = 1; - if (macintosh_config->ide_type == MAC_IDE_QUADRA) - printk(KERN_INFO "ide%d: Macintosh Quadra IDE interface\n", index); - else if (macintosh_config->ide_type == MAC_IDE_PB) - printk(KERN_INFO "ide%d: Macintosh Powerbook IDE interface\n", index); - else if (macintosh_config->ide_type == MAC_IDE_BABOON) - printk(KERN_INFO "ide%d: Macintosh Powerbook Baboon IDE interface\n", index); - else - printk(KERN_INFO "ide%d: Unknown Macintosh IDE interface\n", index); + + ide_device_add(idx); } + + return 0; } + +module_init(macide_init); diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index 6ea46a6723e..f5329730df9 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -111,15 +111,17 @@ static const char *q40_ide_names[Q40IDE_NUM_HWIFS]={ * Probe for Q40 IDE interfaces */ -void __init q40ide_init(void) +static int __init q40ide_init(void) { int i; ide_hwif_t *hwif; - int index; const char *name; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (!MACH_IS_Q40) - return ; + return -ENODEV; + + printk(KERN_INFO "ide: Q40 IDE controller\n"); for (i = 0; i < Q40IDE_NUM_HWIFS; i++) { hw_regs_t hw; @@ -141,10 +143,20 @@ void __init q40ide_init(void) 0, NULL, // m68kide_iops, q40ide_default_irq(pcide_bases[i])); - index = ide_register_hw(&hw, NULL, 1, &hwif); - // **FIXME** - if (index != -1) + + hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); + if (hwif) { + ide_init_port_data(hwif, hwif->index); + ide_init_port_hw(hwif, &hw); hwif->mmio = 1; + + idx[i] = hwif->index; + } } + + ide_device_add(idx); + + return 0; } +module_init(q40ide_init); diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index 912e73853fa..2bac4c1a653 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -478,8 +478,7 @@ int probe_qd65xx = 0; module_param_named(probe, probe_qd65xx, bool, 0); MODULE_PARM_DESC(probe, "probe for QD65xx chipsets"); -/* Can be called directly from ide.c. */ -int __init qd65xx_init(void) +static int __init qd65xx_init(void) { if (probe_qd65xx == 0) return -ENODEV; @@ -492,9 +491,7 @@ int __init qd65xx_init(void) return 0; } -#ifdef MODULE module_init(qd65xx_init); -#endif MODULE_AUTHOR("Samuel Thibault"); MODULE_DESCRIPTION("support of qd65xx vlb ide chipset"); diff --git a/drivers/ide/legacy/umc8672.c b/drivers/ide/legacy/umc8672.c index 79577b91687..a1ae1ae6699 100644 --- a/drivers/ide/legacy/umc8672.c +++ b/drivers/ide/legacy/umc8672.c @@ -169,8 +169,7 @@ int probe_umc8672 = 0; module_param_named(probe, probe_umc8672, bool, 0); MODULE_PARM_DESC(probe, "probe for UMC8672 chipset"); -/* Can be called directly from ide.c. */ -int __init umc8672_init(void) +static int __init umc8672_init(void) { if (probe_umc8672 == 0) goto out; @@ -181,9 +180,7 @@ out: return -ENODEV;; } -#ifdef MODULE module_init(umc8672_init); -#endif MODULE_AUTHOR("Wolfram Podien"); MODULE_DESCRIPTION("Support for UMC 8672 IDE chipset"); diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index a4d0d4ca73d..2d3e5115b83 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -395,26 +395,10 @@ static int auide_dma_test_irq(ide_drive_t *drive) return 0; } -static void auide_dma_host_on(ide_drive_t *drive) +static void auide_dma_host_set(ide_drive_t *drive, int on) { } -static int auide_dma_on(ide_drive_t *drive) -{ - drive->using_dma = 1; - - return 0; -} - -static void auide_dma_host_off(ide_drive_t *drive) -{ -} - -static void auide_dma_off_quietly(ide_drive_t *drive) -{ - drive->using_dma = 0; -} - static void auide_dma_lost_irq(ide_drive_t *drive) { printk(KERN_ERR "%s: IRQ lost\n", drive->name); @@ -641,12 +625,13 @@ static int au_ide_probe(struct device *dev) /* FIXME: This might possibly break PCMCIA IDE devices */ hwif = &ide_hwifs[pdev->id]; - hwif->irq = ahwif->irq; - hwif->chipset = ide_au1xxx; memset(&hw, 0, sizeof(hw)); auide_setup_ports(&hw, ahwif); - memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports)); + hw.irq = ahwif->irq; + hw.chipset = ide_au1xxx; + + ide_init_port_hw(hwif, &hw); hwif->ultra_mask = 0x0; /* Disable Ultra DMA */ #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA @@ -660,7 +645,6 @@ static int au_ide_probe(struct device *dev) hwif->pio_mask = ATA_PIO4; hwif->host_flags = IDE_HFLAG_POST_SET_MODE; - hwif->noprobe = 0; hwif->drives[0].unmask = 1; hwif->drives[1].unmask = 1; @@ -682,29 +666,25 @@ static int au_ide_probe(struct device *dev) hwif->set_dma_mode = &auide_set_dma_mode; #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - hwif->dma_off_quietly = &auide_dma_off_quietly; hwif->dma_timeout = &auide_dma_timeout; hwif->mdma_filter = &auide_mdma_filter; + hwif->dma_host_set = &auide_dma_host_set; hwif->dma_exec_cmd = &auide_dma_exec_cmd; hwif->dma_start = &auide_dma_start; hwif->ide_dma_end = &auide_dma_end; hwif->dma_setup = &auide_dma_setup; hwif->ide_dma_test_irq = &auide_dma_test_irq; - hwif->dma_host_off = &auide_dma_host_off; - hwif->dma_host_on = &auide_dma_host_on; hwif->dma_lost_irq = &auide_dma_lost_irq; - hwif->ide_dma_on = &auide_dma_on; -#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ +#endif hwif->channel = 0; - hwif->hold = 1; hwif->select_data = 0; /* no chipset-specific code */ hwif->config_data = 0; /* no chipset-specific code */ hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */ hwif->drives[1].autotune = 1; -#endif + hwif->drives[0].no_io_32bit = 1; hwif->drives[1].no_io_32bit = 1; diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index 521edd41b57..8b3959dfa2b 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -117,6 +117,7 @@ static int __devinit swarm_ide_probe(struct device *dev) default_hwif_mmiops(hwif); /* Prevent resource map manipulation. */ hwif->mmio = 1; + hwif->chipset = ide_generic; hwif->noprobe = 0; for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) diff --git a/drivers/ide/pci/Makefile b/drivers/ide/pci/Makefile index 95d1ea8f1f1..94803253e8a 100644 --- a/drivers/ide/pci/Makefile +++ b/drivers/ide/pci/Makefile @@ -36,4 +36,8 @@ obj-$(CONFIG_BLK_DEV_VIA82CXXX) += via82cxxx.o # Must appear at the end of the block obj-$(CONFIG_BLK_DEV_GENERIC) += generic.o +ifeq ($(CONFIG_BLK_DEV_CMD640), m) + obj-m += cmd640.o +endif + EXTRA_CFLAGS := -Idrivers/ide diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c index 5ae26564fb7..491871984aa 100644 --- a/drivers/ide/pci/atiixp.c +++ b/drivers/ide/pci/atiixp.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/atiixp.c Version 0.03 Aug 3 2007 + * linux/drivers/ide/pci/atiixp.c Version 0.05 Nov 9 2007 * * Copyright (C) 2003 ATI Inc. <hyu@ati.com> * Copyright (C) 2004,2007 Bartlomiej Zolnierkiewicz @@ -43,47 +43,8 @@ static atiixp_ide_timing mdma_timing[] = { { 0x02, 0x00 }, }; -static int save_mdma_mode[4]; - static DEFINE_SPINLOCK(atiixp_lock); -static void atiixp_dma_host_on(ide_drive_t *drive) -{ - struct pci_dev *dev = drive->hwif->pci_dev; - unsigned long flags; - u16 tmp16; - - spin_lock_irqsave(&atiixp_lock, flags); - - pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &tmp16); - if (save_mdma_mode[drive->dn]) - tmp16 &= ~(1 << drive->dn); - else - tmp16 |= (1 << drive->dn); - pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, tmp16); - - spin_unlock_irqrestore(&atiixp_lock, flags); - - ide_dma_host_on(drive); -} - -static void atiixp_dma_host_off(ide_drive_t *drive) -{ - struct pci_dev *dev = drive->hwif->pci_dev; - unsigned long flags; - u16 tmp16; - - spin_lock_irqsave(&atiixp_lock, flags); - - pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &tmp16); - tmp16 &= ~(1 << drive->dn); - pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, tmp16); - - spin_unlock_irqrestore(&atiixp_lock, flags); - - ide_dma_host_off(drive); -} - /** * atiixp_set_pio_mode - set host controller for PIO mode * @drive: drive @@ -132,26 +93,33 @@ static void atiixp_set_dma_mode(ide_drive_t *drive, const u8 speed) int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8; u32 tmp32; u16 tmp16; + u16 udma_ctl = 0; spin_lock_irqsave(&atiixp_lock, flags); - save_mdma_mode[drive->dn] = 0; + pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &udma_ctl); + if (speed >= XFER_UDMA_0) { pci_read_config_word(dev, ATIIXP_IDE_UDMA_MODE, &tmp16); tmp16 &= ~(0x07 << (drive->dn * 4)); tmp16 |= ((speed & 0x07) << (drive->dn * 4)); pci_write_config_word(dev, ATIIXP_IDE_UDMA_MODE, tmp16); - } else { - if ((speed >= XFER_MW_DMA_0) && (speed <= XFER_MW_DMA_2)) { - save_mdma_mode[drive->dn] = speed; - pci_read_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, &tmp32); - tmp32 &= ~(0xff << timing_shift); - tmp32 |= (mdma_timing[speed & 0x03].recover_width << timing_shift) | - (mdma_timing[speed & 0x03].command_width << (timing_shift + 4)); - pci_write_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, tmp32); - } + + udma_ctl |= (1 << drive->dn); + } else if (speed >= XFER_MW_DMA_0) { + u8 i = speed & 0x03; + + pci_read_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, &tmp32); + tmp32 &= ~(0xff << timing_shift); + tmp32 |= (mdma_timing[i].recover_width << timing_shift) | + (mdma_timing[i].command_width << (timing_shift + 4)); + pci_write_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, tmp32); + + udma_ctl &= ~(1 << drive->dn); } + pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, udma_ctl); + spin_unlock_irqrestore(&atiixp_lock, flags); } @@ -181,9 +149,6 @@ static void __devinit init_hwif_atiixp(ide_hwif_t *hwif) hwif->cbl = ATA_CBL_PATA80; else hwif->cbl = ATA_CBL_PATA40; - - hwif->dma_host_on = &atiixp_dma_host_on; - hwif->dma_host_off = &atiixp_dma_host_off; } static const struct ide_port_info atiixp_pci_info[] __devinitdata = { diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index 4aa48104e0c..da3565e0071 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -706,9 +706,9 @@ static int pci_conf2(void) } /* - * Probe for a cmd640 chipset, and initialize it if found. Called from ide.c + * Probe for a cmd640 chipset, and initialize it if found. */ -int __init ide_probe_for_cmd640x (void) +static int __init cmd640x_init(void) { #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED int second_port_toggled = 0; @@ -717,6 +717,7 @@ int __init ide_probe_for_cmd640x (void) const char *bus_type, *port2; unsigned int index; u8 b, cfr; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; if (cmd640_vlb && probe_for_cmd640_vlb()) { bus_type = "VLB"; @@ -769,6 +770,8 @@ int __init ide_probe_for_cmd640x (void) cmd_hwif0->set_pio_mode = &cmd640_set_pio_mode; #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ + idx[0] = cmd_hwif0->index; + /* * Ensure compatibility by always using the slowest timings * for access to the drive's command register block, @@ -826,6 +829,8 @@ int __init ide_probe_for_cmd640x (void) cmd_hwif1->pio_mask = ATA_PIO5; cmd_hwif1->set_pio_mode = &cmd640_set_pio_mode; #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ + + idx[1] = cmd_hwif1->index; } printk(KERN_INFO "%s: %sserialized, secondary interface %s\n", cmd_hwif1->name, cmd_hwif0->serialized ? "" : "not ", port2); @@ -872,6 +877,13 @@ int __init ide_probe_for_cmd640x (void) #ifdef CMD640_DUMP_REGS cmd640_dump_regs(); #endif + + ide_device_add(idx); + return 1; } +module_param_named(probe_vlb, cmd640_vlb, bool, 0); +MODULE_PARM_DESC(probe_vlb, "probe for VLB version of CMD640 chipset"); + +module_init(cmd640x_init); diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c index 0b1e9479f01..cd4eb9def15 100644 --- a/drivers/ide/pci/cmd64x.c +++ b/drivers/ide/pci/cmd64x.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/cmd64x.c Version 1.52 Dec 24, 2007 + * linux/drivers/ide/pci/cmd64x.c Version 1.53 Dec 24, 2007 * * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines. * Due to massive hardware bugs, UltraDMA is only supported @@ -22,8 +22,6 @@ #include <asm/io.h> -#define DISPLAY_CMD64X_TIMINGS - #define CMD_DEBUG 0 #if CMD_DEBUG @@ -37,11 +35,6 @@ */ #define CFR 0x50 #define CFR_INTR_CH0 0x04 -#define CNTRL 0x51 -#define CNTRL_ENA_1ST 0x04 -#define CNTRL_ENA_2ND 0x08 -#define CNTRL_DIS_RA0 0x40 -#define CNTRL_DIS_RA1 0x80 #define CMDTIM 0x52 #define ARTTIM0 0x53 @@ -60,108 +53,13 @@ #define MRDMODE 0x71 #define MRDMODE_INTR_CH0 0x04 #define MRDMODE_INTR_CH1 0x08 -#define MRDMODE_BLK_CH0 0x10 -#define MRDMODE_BLK_CH1 0x20 -#define BMIDESR0 0x72 #define UDIDETCR0 0x73 #define DTPR0 0x74 #define BMIDECR1 0x78 #define BMIDECSR 0x79 -#define BMIDESR1 0x7A #define UDIDETCR1 0x7B #define DTPR1 0x7C -#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS) -#include <linux/stat.h> -#include <linux/proc_fs.h> - -static u8 cmd64x_proc = 0; - -#define CMD_MAX_DEVS 5 - -static struct pci_dev *cmd_devs[CMD_MAX_DEVS]; -static int n_cmd_devs; - -static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index) -{ - char *p = buf; - u8 reg72 = 0, reg73 = 0; /* primary */ - u8 reg7a = 0, reg7b = 0; /* secondary */ - u8 reg50 = 1, reg51 = 1, reg57 = 0, reg71 = 0; /* extra */ - - p += sprintf(p, "\nController: %d\n", index); - p += sprintf(p, "PCI-%x Chipset.\n", dev->device); - - (void) pci_read_config_byte(dev, CFR, ®50); - (void) pci_read_config_byte(dev, CNTRL, ®51); - (void) pci_read_config_byte(dev, ARTTIM23, ®57); - (void) pci_read_config_byte(dev, MRDMODE, ®71); - (void) pci_read_config_byte(dev, BMIDESR0, ®72); - (void) pci_read_config_byte(dev, UDIDETCR0, ®73); - (void) pci_read_config_byte(dev, BMIDESR1, ®7a); - (void) pci_read_config_byte(dev, UDIDETCR1, ®7b); - - /* PCI0643/6 originally didn't have the primary channel enable bit */ - if ((dev->device == PCI_DEVICE_ID_CMD_643) || - (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 3)) - reg51 |= CNTRL_ENA_1ST; - - p += sprintf(p, "---------------- Primary Channel " - "---------------- Secondary Channel ------------\n"); - p += sprintf(p, " %s %s\n", - (reg51 & CNTRL_ENA_1ST) ? "enabled " : "disabled", - (reg51 & CNTRL_ENA_2ND) ? "enabled " : "disabled"); - p += sprintf(p, "---------------- drive0 --------- drive1 " - "-------- drive0 --------- drive1 ------\n"); - p += sprintf(p, "DMA enabled: %s %s" - " %s %s\n", - (reg72 & 0x20) ? "yes" : "no ", (reg72 & 0x40) ? "yes" : "no ", - (reg7a & 0x20) ? "yes" : "no ", (reg7a & 0x40) ? "yes" : "no "); - p += sprintf(p, "UltraDMA mode: %s (%c) %s (%c)", - ( reg73 & 0x01) ? " on" : "off", - ((reg73 & 0x30) == 0x30) ? ((reg73 & 0x04) ? '3' : '0') : - ((reg73 & 0x30) == 0x20) ? ((reg73 & 0x04) ? '3' : '1') : - ((reg73 & 0x30) == 0x10) ? ((reg73 & 0x04) ? '4' : '2') : - ((reg73 & 0x30) == 0x00) ? ((reg73 & 0x04) ? '5' : '2') : '?', - ( reg73 & 0x02) ? " on" : "off", - ((reg73 & 0xC0) == 0xC0) ? ((reg73 & 0x08) ? '3' : '0') : - ((reg73 & 0xC0) == 0x80) ? ((reg73 & 0x08) ? '3' : '1') : - ((reg73 & 0xC0) == 0x40) ? ((reg73 & 0x08) ? '4' : '2') : - ((reg73 & 0xC0) == 0x00) ? ((reg73 & 0x08) ? '5' : '2') : '?'); - p += sprintf(p, " %s (%c) %s (%c)\n", - ( reg7b & 0x01) ? " on" : "off", - ((reg7b & 0x30) == 0x30) ? ((reg7b & 0x04) ? '3' : '0') : - ((reg7b & 0x30) == 0x20) ? ((reg7b & 0x04) ? '3' : '1') : - ((reg7b & 0x30) == 0x10) ? ((reg7b & 0x04) ? '4' : '2') : - ((reg7b & 0x30) == 0x00) ? ((reg7b & 0x04) ? '5' : '2') : '?', - ( reg7b & 0x02) ? " on" : "off", - ((reg7b & 0xC0) == 0xC0) ? ((reg7b & 0x08) ? '3' : '0') : - ((reg7b & 0xC0) == 0x80) ? ((reg7b & 0x08) ? '3' : '1') : - ((reg7b & 0xC0) == 0x40) ? ((reg7b & 0x08) ? '4' : '2') : - ((reg7b & 0xC0) == 0x00) ? ((reg7b & 0x08) ? '5' : '2') : '?'); - p += sprintf(p, "Interrupt: %s, %s %s, %s\n", - (reg71 & MRDMODE_BLK_CH0 ) ? "blocked" : "enabled", - (reg50 & CFR_INTR_CH0 ) ? "pending" : "clear ", - (reg71 & MRDMODE_BLK_CH1 ) ? "blocked" : "enabled", - (reg57 & ARTTIM23_INTR_CH1) ? "pending" : "clear "); - - return (char *)p; -} - -static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count) -{ - char *p = buffer; - int i; - - for (i = 0; i < n_cmd_devs; i++) { - struct pci_dev *dev = cmd_devs[i]; - p = print_cmd64x_get_info(p, dev, i); - } - return p-buffer; /* => must be less than 4k! */ -} - -#endif /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */ - static u8 quantize_timing(int timing, int quant) { return (timing + quant - 1) / quant; @@ -472,16 +370,6 @@ static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const cha mrdmode &= ~0x30; (void) pci_write_config_byte(dev, MRDMODE, (mrdmode | 0x02)); -#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS) - - cmd_devs[n_cmd_devs++] = dev; - - if (!cmd64x_proc) { - cmd64x_proc = 1; - ide_pci_create_host_proc("cmd64x", cmd64x_get_info); - } -#endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_IDE_PROC_FS */ - return 0; } diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index d1a91bcb5b2..6ec00b8d7ec 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -71,7 +71,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) ide_hwif_t *hwif = HWIF(drive); struct pci_dev *pdev = hwif->pci_dev; int controller = drive->dn > 1 ? 1 : 0; - u8 reg; /* FIXME: if DMA = 1 do we need to set the DMA bit here ? */ @@ -91,11 +90,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio) pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1), (cs5520_pio_clocks[pio].recovery << 4) | (cs5520_pio_clocks[pio].assert)); - - /* Set the DMA enable/disable flag */ - reg = inb(hwif->dma_base + 0x02 + 8*controller); - reg |= 1<<((drive->dn&1)+5); - outb(reg, hwif->dma_base + 0x02 + 8*controller); } static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) @@ -109,13 +103,14 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed) * We wrap the DMA activate to set the vdma flag. This is needed * so that the IDE DMA layer issues PIO not DMA commands over the * DMA channel + * + * ATAPI is harder so disable it for now using IDE_HFLAG_NO_ATAPI_DMA */ - -static int cs5520_dma_on(ide_drive_t *drive) + +static void cs5520_dma_host_set(ide_drive_t *drive, int on) { - /* ATAPI is harder so leave it for now */ - drive->vdma = 1; - return 0; + drive->vdma = on; + ide_dma_host_set(drive, on); } static void __devinit init_hwif_cs5520(ide_hwif_t *hwif) @@ -126,7 +121,7 @@ static void __devinit init_hwif_cs5520(ide_hwif_t *hwif) if (hwif->dma_base == 0) return; - hwif->ide_dma_on = &cs5520_dma_on; + hwif->dma_host_set = &cs5520_dma_host_set; } #define DECLARE_CS_DEV(name_str) \ diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index 1cd4e9cb052..3ec4c659a37 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/cy82c693.c Version 0.42 Oct 23, 2007 + * linux/drivers/ide/pci/cy82c693.c Version 0.44 Nov 8, 2007 * * Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator @@ -176,17 +176,12 @@ static void compute_clocks (u8 pio, pio_clocks_t *p_pclk) * set DMA mode a specific channel for CY82C693 */ -static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single) +static void cy82c693_set_dma_mode(ide_drive_t *drive, const u8 mode) { - u8 index = 0, data = 0; + ide_hwif_t *hwif = drive->hwif; + u8 single = (mode & 0x10) >> 4, index = 0, data = 0; - if (mode>2) /* make sure we set a valid mode */ - mode = 2; - - if (mode > drive->id->tDMA) /* to be absolutly sure we have a valid mode */ - mode = drive->id->tDMA; - - index = (HWIF(drive)->channel==0) ? CY82_INDEX_CHANNEL0 : CY82_INDEX_CHANNEL1; + index = hwif->channel ? CY82_INDEX_CHANNEL1 : CY82_INDEX_CHANNEL0; #if CY82C693_DEBUG_LOGS /* for debug let's show the previous values */ @@ -199,7 +194,7 @@ static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single) (data&0x3), ((data>>2)&1)); #endif /* CY82C693_DEBUG_LOGS */ - data = (u8)mode|(u8)(single<<2); + data = (mode & 3) | (single << 2); outb(index, CY82_INDEX_PORT); outb(data, CY82_DATA_PORT); @@ -207,7 +202,7 @@ static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single) #if CY82C693_DEBUG_INFO printk(KERN_INFO "%s (ch=%d, dev=%d): set DMA mode to %d (single=%d)\n", drive->name, HWIF(drive)->channel, drive->select.b.unit, - mode, single); + mode & 3, single); #endif /* CY82C693_DEBUG_INFO */ /* @@ -230,39 +225,6 @@ static void cy82c693_dma_enable (ide_drive_t *drive, int mode, int single) #endif /* CY82C693_DEBUG_INFO */ } -/* - * used to set DMA mode for CY82C693 (single and multi modes) - */ -static int cy82c693_ide_dma_on (ide_drive_t *drive) -{ - struct hd_driveid *id = drive->id; - -#if CY82C693_DEBUG_INFO - printk (KERN_INFO "dma_on: %s\n", drive->name); -#endif /* CY82C693_DEBUG_INFO */ - - if (id != NULL) { - /* Enable DMA on any drive that has DMA - * (multi or single) enabled - */ - if (id->field_valid & 2) { /* regular DMA */ - int mmode, smode; - - mmode = id->dma_mword & (id->dma_mword >> 8); - smode = id->dma_1word & (id->dma_1word >> 8); - - if (mmode != 0) { - /* enable multi */ - cy82c693_dma_enable(drive, (mmode >> 1), 0); - } else if (smode != 0) { - /* enable single */ - cy82c693_dma_enable(drive, (smode >> 1), 1); - } - } - } - return __ide_dma_on(drive); -} - static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); @@ -429,11 +391,7 @@ static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const c static void __devinit init_hwif_cy82c693(ide_hwif_t *hwif) { hwif->set_pio_mode = &cy82c693_set_pio_mode; - - if (hwif->dma_base == 0) - return; - - hwif->ide_dma_on = &cy82c693_ide_dma_on; + hwif->set_dma_mode = &cy82c693_set_dma_mode; } static void __devinit init_iops_cy82c693(ide_hwif_t *hwif) @@ -454,11 +412,11 @@ static const struct ide_port_info cy82c693_chipset __devinitdata = { .init_iops = init_iops_cy82c693, .init_hwif = init_hwif_cy82c693, .chipset = ide_cy82c693, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_TRUST_BIOS_FOR_DMA | + .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_CY82C693 | IDE_HFLAG_BOOTABLE, .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2_ONLY, - .mwdma_mask = ATA_MWDMA2_ONLY, + .swdma_mask = ATA_SWDMA2, + .mwdma_mask = ATA_MWDMA2, }; static int __devinit cy82c693_init_one(struct pci_dev *dev, const struct pci_device_id *id) diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c index 83829081640..26aa492071b 100644 --- a/drivers/ide/pci/delkin_cb.c +++ b/drivers/ide/pci/delkin_cb.c @@ -80,7 +80,7 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) hw.irq = dev->irq; hw.chipset = ide_pci; /* this enables IRQ sharing */ - rc = ide_register_hw(&hw, &ide_undecoded_slave, 0, &hwif); + rc = ide_register_hw(&hw, &ide_undecoded_slave, &hwif); if (rc < 0) { printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc); pci_disable_device(dev); diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index 3777fb8c804..12685939a81 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -725,15 +725,18 @@ static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio) hpt3xx_set_mode(drive, XFER_PIO_0 + pio); } -static int hpt3xx_quirkproc(ide_drive_t *drive) +static void hpt3xx_quirkproc(ide_drive_t *drive) { struct hd_driveid *id = drive->id; const char **list = quirk_drives; while (*list) - if (strstr(id->model, *list++)) - return 1; - return 0; + if (strstr(id->model, *list++)) { + drive->quirk_list = 1; + return; + } + + drive->quirk_list = 0; } static void hpt3xx_maskproc(ide_drive_t *drive, int mask) diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c index 99b7d763b6c..e610a5340fd 100644 --- a/drivers/ide/pci/it821x.c +++ b/drivers/ide/pci/it821x.c @@ -431,33 +431,29 @@ static u8 __devinit ata66_it821x(ide_hwif_t *hwif) } /** - * it821x_fixup - post init callback - * @hwif: interface + * it821x_quirkproc - post init callback + * @drive: drive * - * This callback is run after the drives have been probed but + * This callback is run after the drive has been probed but * before anything gets attached. It allows drivers to do any * final tuning that is needed, or fixups to work around bugs. */ -static void __devinit it821x_fixups(ide_hwif_t *hwif) +static void __devinit it821x_quirkproc(ide_drive_t *drive) { - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - int i; + struct it821x_dev *itdev = ide_get_hwifdata(drive->hwif); + struct hd_driveid *id = drive->id; + u16 *idbits = (u16 *)drive->id; - if(!itdev->smart) { + if (!itdev->smart) { /* * If we are in pass through mode then not much * needs to be done, but we do bother to clear the * IRQ mask as we may well be in PIO (eg rev 0x10) * for now and we know unmasking is safe on this chipset. */ - for (i = 0; i < 2; i++) { - ide_drive_t *drive = &hwif->drives[i]; - if(drive->present) - drive->unmask = 1; - } - return; - } + drive->unmask = 1; + } else { /* * Perform fixups on smart mode. We need to "lose" some * capabilities the firmware lacks but does not filter, and @@ -465,16 +461,6 @@ static void __devinit it821x_fixups(ide_hwif_t *hwif) * in RAID mode. */ - for(i = 0; i < 2; i++) { - ide_drive_t *drive = &hwif->drives[i]; - struct hd_driveid *id; - u16 *idbits; - - if(!drive->present) - continue; - id = drive->id; - idbits = (u16 *)drive->id; - /* Check for RAID v native */ if(strstr(id->model, "Integrated Technology Express")) { /* In raid mode the ident block is slightly buggy @@ -537,6 +523,8 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif) struct it821x_dev *idev = kzalloc(sizeof(struct it821x_dev), GFP_KERNEL); u8 conf; + hwif->quirkproc = &it821x_quirkproc; + if (idev == NULL) { printk(KERN_ERR "it821x: out of memory, falling back to legacy behaviour.\n"); return; @@ -633,7 +621,6 @@ static unsigned int __devinit init_chipset_it821x(struct pci_dev *dev, const cha .name = name_str, \ .init_chipset = init_chipset_it821x, \ .init_hwif = init_hwif_it821x, \ - .fixup = it821x_fixups, \ .host_flags = IDE_HFLAG_BOOTABLE, \ .pio_mask = ATA_PIO4, \ } diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c index ef4a99b99d1..89d2363a1eb 100644 --- a/drivers/ide/pci/pdc202xx_new.c +++ b/drivers/ide/pci/pdc202xx_new.c @@ -203,14 +203,17 @@ static u8 pdcnew_cable_detect(ide_hwif_t *hwif) return ATA_CBL_PATA80; } -static int pdcnew_quirkproc(ide_drive_t *drive) +static void pdcnew_quirkproc(ide_drive_t *drive) { const char **list, *model = drive->id->model; for (list = pdc_quirk_drives; *list != NULL; list++) - if (strstr(model, *list) != NULL) - return 2; - return 0; + if (strstr(model, *list) != NULL) { + drive->quirk_list = 2; + return; + } + + drive->quirk_list = 0; } static void pdcnew_reset(ide_drive_t *drive) diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index 67b2781e221..3a1e081fe39 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -176,14 +176,17 @@ static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif) outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg); } -static int pdc202xx_quirkproc (ide_drive_t *drive) +static void pdc202xx_quirkproc(ide_drive_t *drive) { const char **list, *model = drive->id->model; for (list = pdc_quirk_drives; *list != NULL; list++) - if (strstr(model, *list) != NULL) - return 2; - return 0; + if (strstr(model, *list) != NULL) { + drive->quirk_list = 2; + return; + } + + drive->quirk_list = 0; } static void pdc202xx_old_ide_dma_start(ide_drive_t *drive) diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c index fef20bd4aa7..32fdf53379f 100644 --- a/drivers/ide/pci/sc1200.c +++ b/drivers/ide/pci/sc1200.c @@ -220,9 +220,9 @@ static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio) } if (mode != -1) { printk("SC1200: %s: changing (U)DMA mode\n", drive->name); - hwif->dma_off_quietly(drive); - if (ide_set_dma_mode(drive, mode) == 0) - hwif->dma_host_on(drive); + ide_dma_off_quietly(drive); + if (ide_set_dma_mode(drive, mode) == 0 && drive->using_dma) + hwif->dma_host_set(drive, 1); return; } diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c index e9bd269547b..877c09bf482 100644 --- a/drivers/ide/pci/serverworks.c +++ b/drivers/ide/pci/serverworks.c @@ -164,25 +164,12 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed) ultra_timing &= ~(0x0F << (4*unit)); ultra_enable &= ~(0x01 << drive->dn); - switch(speed) { - case XFER_MW_DMA_2: - case XFER_MW_DMA_1: - case XFER_MW_DMA_0: - dma_timing |= dma_modes[speed - XFER_MW_DMA_0]; - break; - - case XFER_UDMA_5: - case XFER_UDMA_4: - case XFER_UDMA_3: - case XFER_UDMA_2: - case XFER_UDMA_1: - case XFER_UDMA_0: - dma_timing |= dma_modes[2]; - ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit)); - ultra_enable |= (0x01 << drive->dn); - default: - break; - } + if (speed >= XFER_UDMA_0) { + dma_timing |= dma_modes[2]; + ultra_timing |= (udma_modes[speed - XFER_UDMA_0] << (4 * unit)); + ultra_enable |= (0x01 << drive->dn); + } else if (speed >= XFER_MW_DMA_0) + dma_timing |= dma_modes[speed - XFER_MW_DMA_0]; pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing); pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing); diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 7e9dade5648..9e0be7d5498 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -277,21 +277,6 @@ sgiioc4_ide_dma_end(ide_drive_t * drive) return dma_stat; } -static int -sgiioc4_ide_dma_on(ide_drive_t * drive) -{ - drive->using_dma = 1; - - return 0; -} - -static void sgiioc4_dma_off_quietly(ide_drive_t *drive) -{ - drive->using_dma = 0; - - drive->hwif->dma_host_off(drive); -} - static void sgiioc4_set_dma_mode(ide_drive_t *drive, const u8 speed) { } @@ -303,13 +288,10 @@ sgiioc4_ide_dma_test_irq(ide_drive_t * drive) return sgiioc4_checkirq(HWIF(drive)); } -static void sgiioc4_dma_host_on(ide_drive_t * drive) -{ -} - -static void sgiioc4_dma_host_off(ide_drive_t * drive) +static void sgiioc4_dma_host_set(ide_drive_t *drive, int on) { - sgiioc4_clearirq(drive); + if (!on) + sgiioc4_clearirq(drive); } static void @@ -593,14 +575,11 @@ ide_init_sgiioc4(ide_hwif_t * hwif) hwif->mwdma_mask = ATA_MWDMA2_ONLY; + hwif->dma_host_set = &sgiioc4_dma_host_set; hwif->dma_setup = &sgiioc4_ide_dma_setup; hwif->dma_start = &sgiioc4_ide_dma_start; hwif->ide_dma_end = &sgiioc4_ide_dma_end; - hwif->ide_dma_on = &sgiioc4_ide_dma_on; - hwif->dma_off_quietly = &sgiioc4_dma_off_quietly; hwif->ide_dma_test_irq = &sgiioc4_ide_dma_test_irq; - hwif->dma_host_on = &sgiioc4_dma_host_on; - hwif->dma_host_off = &sgiioc4_dma_host_off; hwif->dma_lost_irq = &sgiioc4_dma_lost_irq; hwif->dma_timeout = &ide_dma_timeout; } @@ -614,6 +593,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) ide_hwif_t *hwif; int h; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + hw_regs_t hw; /* * Find an empty HWIF; if none available, return -ENOMEM. @@ -653,21 +633,16 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) return -ENOMEM; } - if (hwif->io_ports[IDE_DATA_OFFSET] != cmd_base) { - hw_regs_t hw; - - /* Initialize the IO registers */ - memset(&hw, 0, sizeof(hw)); - sgiioc4_init_hwif_ports(&hw, cmd_base, ctl, irqport); - memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports)); - hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; - } + /* Initialize the IO registers */ + memset(&hw, 0, sizeof(hw)); + sgiioc4_init_hwif_ports(&hw, cmd_base, ctl, irqport); + hw.irq = dev->irq; + hw.chipset = ide_pci; + hw.dev = &dev->dev; + ide_init_port_hw(hwif, &hw); - hwif->irq = dev->irq; - hwif->chipset = ide_pci; hwif->pci_dev = dev; hwif->channel = 0; /* Single Channel chip */ - hwif->gendev.parent = &dev->dev;/* setup proper ancestral information */ /* The IOC4 uses MMIO rather than Port IO. */ default_hwif_mmiops(hwif); diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 7b45eaf5afd..908f37b4e0e 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -713,9 +713,6 @@ static int is_dev_seagate_sata(ide_drive_t *drive) const char *s = &drive->id->model[0]; unsigned len; - if (!drive->present) - return 0; - len = strnlen(s, sizeof(drive->id->model)); if ((len > 4) && (!memcmp(s, "ST", 2))) { @@ -730,18 +727,20 @@ static int is_dev_seagate_sata(ide_drive_t *drive) } /** - * siimage_fixup - post probe fixups - * @hwif: interface to fix up + * sil_quirkproc - post probe fixups + * @drive: drive * * Called after drive probe we use this to decide whether the * Seagate fixup must be applied. This used to be in init_iops but * that can occur before we know what drives are present. */ -static void __devinit siimage_fixup(ide_hwif_t *hwif) +static void __devinit sil_quirkproc(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; + /* Try and raise the rqsize */ - if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0])) + if (!is_sata(hwif) || !is_dev_seagate_sata(drive)) hwif->rqsize = 128; } @@ -804,6 +803,7 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif) hwif->set_pio_mode = &sil_set_pio_mode; hwif->set_dma_mode = &sil_set_dma_mode; + hwif->quirkproc = &sil_quirkproc; if (sata) { static int first = 1; @@ -842,7 +842,6 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif) .init_chipset = init_chipset_siimage, \ .init_iops = init_iops_siimage, \ .init_hwif = init_hwif_siimage, \ - .fixup = siimage_fixup, \ .host_flags = IDE_HFLAG_BOOTABLE, \ .pio_mask = ATA_PIO4, \ .mwdma_mask = ATA_MWDMA2, \ diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index 069f104fdce..c7a125b66c2 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -13,6 +13,7 @@ * -- Benjamin Herrenschmidt (01/11/03) benh@kernel.crashing.org * * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> + * Copyright (C) 2007 Bartlomiej Zolnierkiewicz */ #include <linux/types.h> @@ -90,14 +91,8 @@ static void sl82c105_set_pio_mode(ide_drive_t *drive, const u8 pio) drive->drive_data &= 0xffff0000; drive->drive_data |= drv_ctrl; - if (!drive->using_dma) { - /* - * If we are actually using MW DMA, then we can not - * reprogram the interface drive control register. - */ - pci_write_config_word(dev, reg, drv_ctrl); - pci_read_config_word (dev, reg, &drv_ctrl); - } + pci_write_config_word(dev, reg, drv_ctrl); + pci_read_config_word (dev, reg, &drv_ctrl); printk(KERN_DEBUG "%s: selected %s (%dns) (%04X)\n", drive->name, ide_xfer_verbose(pio + XFER_PIO_0), @@ -123,17 +118,6 @@ static void sl82c105_set_dma_mode(ide_drive_t *drive, const u8 speed) */ drive->drive_data &= 0x0000ffff; drive->drive_data |= (unsigned long)drv_ctrl << 16; - - /* - * If we are already using DMA, we just reprogram - * the drive control register. - */ - if (drive->using_dma) { - struct pci_dev *dev = HWIF(drive)->pci_dev; - int reg = 0x44 + drive->dn * 4; - - pci_write_config_word(dev, reg, drv_ctrl); - } } /* @@ -201,6 +185,11 @@ static void sl82c105_dma_start(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; + int reg = 0x44 + drive->dn * 4; + + DBG(("%s(drive:%s)\n", __FUNCTION__, drive->name)); + + pci_write_config_word(dev, reg, drive->drive_data >> 16); sl82c105_reset_host(dev); ide_dma_start(drive); @@ -214,64 +203,24 @@ static void sl82c105_dma_timeout(ide_drive_t *drive) ide_dma_timeout(drive); } -static int sl82c105_ide_dma_on(ide_drive_t *drive) -{ - struct pci_dev *dev = HWIF(drive)->pci_dev; - int rc, reg = 0x44 + drive->dn * 4; - - DBG(("sl82c105_ide_dma_on(drive:%s)\n", drive->name)); - - rc = __ide_dma_on(drive); - if (rc == 0) { - pci_write_config_word(dev, reg, drive->drive_data >> 16); - - printk(KERN_INFO "%s: DMA enabled\n", drive->name); - } - return rc; -} - -static void sl82c105_dma_off_quietly(ide_drive_t *drive) +static int sl82c105_dma_end(ide_drive_t *drive) { struct pci_dev *dev = HWIF(drive)->pci_dev; int reg = 0x44 + drive->dn * 4; + int ret; - DBG(("sl82c105_dma_off_quietly(drive:%s)\n", drive->name)); + DBG(("%s(drive:%s)\n", __FUNCTION__, drive->name)); - pci_write_config_word(dev, reg, drive->drive_data); + ret = __ide_dma_end(drive); - ide_dma_off_quietly(drive); -} + pci_write_config_word(dev, reg, drive->drive_data); -/* - * Ok, that is nasty, but we must make sure the DMA timings - * won't be used for a PIO access. The solution here is - * to make sure the 16 bits mode is diabled on the channel - * when DMA is enabled, thus causing the chip to use PIO0 - * timings for those operations. - */ -static void sl82c105_selectproc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - struct pci_dev *dev = hwif->pci_dev; - u32 val, old, mask; - - //DBG(("sl82c105_selectproc(drive:%s)\n", drive->name)); - - mask = hwif->channel ? CTRL_P1F16 : CTRL_P0F16; - old = val = (u32)pci_get_drvdata(dev); - if (drive->using_dma) - val &= ~mask; - else - val |= mask; - if (old != val) { - pci_write_config_dword(dev, 0x40, val); - pci_set_drvdata(dev, (void *)val); - } + return ret; } /* * ATA reset will clear the 16 bits mode in the control - * register, we need to update our cache + * register, we need to reprogram it */ static void sl82c105_resetproc(ide_drive_t *drive) { @@ -281,7 +230,8 @@ static void sl82c105_resetproc(ide_drive_t *drive) DBG(("sl82c105_resetproc(drive:%s)\n", drive->name)); pci_read_config_dword(dev, 0x40, &val); - pci_set_drvdata(dev, (void *)val); + val |= (CTRL_P1F16 | CTRL_P0F16); + pci_write_config_dword(dev, 0x40, val); } /* @@ -334,7 +284,6 @@ static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev, const c pci_read_config_dword(dev, 0x40, &val); val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16; pci_write_config_dword(dev, 0x40, val); - pci_set_drvdata(dev, (void *)val); return dev->irq; } @@ -350,7 +299,6 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif) hwif->set_pio_mode = &sl82c105_set_pio_mode; hwif->set_dma_mode = &sl82c105_set_dma_mode; - hwif->selectproc = &sl82c105_selectproc; hwif->resetproc = &sl82c105_resetproc; if (!hwif->dma_base) @@ -369,10 +317,9 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif) hwif->mwdma_mask = ATA_MWDMA2; - hwif->ide_dma_on = &sl82c105_ide_dma_on; - hwif->dma_off_quietly = &sl82c105_dma_off_quietly; hwif->dma_lost_irq = &sl82c105_dma_lost_irq; hwif->dma_start = &sl82c105_dma_start; + hwif->ide_dma_end = &sl82c105_dma_end; hwif->dma_timeout = &sl82c105_dma_timeout; if (hwif->mate) diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c index 0151d7fdfb8..04cd893e1ab 100644 --- a/drivers/ide/pci/trm290.c +++ b/drivers/ide/pci/trm290.c @@ -241,11 +241,7 @@ static int trm290_ide_dma_test_irq (ide_drive_t *drive) return (status == 0x00ff); } -static void trm290_dma_host_on(ide_drive_t *drive) -{ -} - -static void trm290_dma_host_off(ide_drive_t *drive) +static void trm290_dma_host_set(ide_drive_t *drive, int on) { } @@ -289,8 +285,7 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif) ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3); - hwif->dma_host_off = &trm290_dma_host_off; - hwif->dma_host_on = &trm290_dma_host_on; + hwif->dma_host_set = &trm290_dma_host_set; hwif->dma_setup = &trm290_dma_setup; hwif->dma_exec_cmd = &trm290_dma_exec_cmd; hwif->dma_start = &trm290_dma_start; diff --git a/drivers/ide/ppc/Makefile b/drivers/ide/ppc/Makefile new file mode 100644 index 00000000000..65af5848b28 --- /dev/null +++ b/drivers/ide/ppc/Makefile @@ -0,0 +1,3 @@ + +obj-$(CONFIG_BLK_DEV_IDE_PMAC) += pmac.o +obj-$(CONFIG_BLK_DEV_MPC8xx_IDE) += mpc8xx.o diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c index 5f0da35ab5a..3fd5d45b5e0 100644 --- a/drivers/ide/ppc/mpc8xx.c +++ b/drivers/ide/ppc/mpc8xx.c @@ -838,3 +838,21 @@ void m8xx_ide_init(void) ppc_ide_md.default_io_base = m8xx_ide_default_io_base; ppc_ide_md.ide_init_hwif = m8xx_ide_init_hwif_ports; } + +static int __init mpc8xx_ide_probe(void) +{ + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + +#ifdef IDE0_BASE_OFFSET + idx[0] = 0; +#ifdef IDE1_BASE_OFFSET + idx[1] = 1; +#endif +#endif + + ide_device_add(idx); + + return 0; +} + +module_init(mpc8xx_ide_probe); diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 3dce80092ff..736d12c8e68 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1012,12 +1012,11 @@ pmac_ide_do_resume(ide_hwif_t *hwif) * rare machines unfortunately, but it's better this way. */ static int -pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) +pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif, hw_regs_t *hw) { struct device_node *np = pmif->node; const int *bidp; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - hw_regs_t hw; pmif->cable_80 = 0; pmif->broken_dma = pmif->broken_dma_warn = 0; @@ -1103,11 +1102,9 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) /* Tell common code _not_ to mess with resources */ hwif->mmio = 1; hwif->hwif_data = pmif; - memset(&hw, 0, sizeof(hw)); - pmac_ide_init_hwif_ports(&hw, pmif->regbase, 0, &hwif->irq); - memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports)); - hwif->chipset = ide_pmac; - hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET] || pmif->mediabay; + hw->chipset = ide_pmac; + ide_init_port_hw(hwif, hw); + hwif->noprobe = pmif->mediabay; hwif->hold = pmif->mediabay; hwif->cbl = pmif->cable_80 ? ATA_CBL_PATA80 : ATA_CBL_PATA40; hwif->drives[0].unmask = 1; @@ -1136,8 +1133,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) hwif->noprobe = 0; #endif /* CONFIG_PMAC_MEDIABAY */ - hwif->sg_max_nents = MAX_DCMDS; - #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC /* has a DBDMA controller channel */ if (pmif->dma_regs) @@ -1163,6 +1158,7 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) ide_hwif_t *hwif; pmac_ide_hwif_t *pmif; int i, rc; + hw_regs_t hw; i = 0; while (i < MAX_HWIFS && (ide_hwifs[i].io_ports[IDE_DATA_OFFSET] != 0 @@ -1205,7 +1201,6 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) regbase = (unsigned long) base; hwif->pci_dev = mdev->bus->pdev; - hwif->gendev.parent = &mdev->ofdev.dev; pmif->mdev = mdev; pmif->node = mdev->ofdev.node; @@ -1223,7 +1218,12 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) #endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */ dev_set_drvdata(&mdev->ofdev.dev, hwif); - rc = pmac_ide_setup_device(pmif, hwif); + memset(&hw, 0, sizeof(hw)); + pmac_ide_init_hwif_ports(&hw, pmif->regbase, 0, NULL); + hw.irq = irq; + hw.dev = &mdev->ofdev.dev; + + rc = pmac_ide_setup_device(pmif, hwif, &hw); if (rc != 0) { /* The inteface is released to the common IDE layer */ dev_set_drvdata(&mdev->ofdev.dev, NULL); @@ -1282,6 +1282,7 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id) void __iomem *base; unsigned long rbase, rlen; int i, rc; + hw_regs_t hw; np = pci_device_to_OF_node(pdev); if (np == NULL) { @@ -1315,7 +1316,6 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id) } hwif->pci_dev = pdev; - hwif->gendev.parent = &pdev->dev; pmif->mdev = NULL; pmif->node = np; @@ -1332,7 +1332,12 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id) pci_set_drvdata(pdev, hwif); - rc = pmac_ide_setup_device(pmif, hwif); + memset(&hw, 0, sizeof(hw)); + pmac_ide_init_hwif_ports(&hw, pmif->regbase, 0, NULL); + hw.irq = pdev->irq; + hw.dev = &pdev->dev; + + rc = pmac_ide_setup_device(pmif, hwif, &hw); if (rc != 0) { /* The inteface is released to the common IDE layer */ pci_set_drvdata(pdev, NULL); @@ -1698,11 +1703,7 @@ pmac_ide_dma_test_irq (ide_drive_t *drive) return 1; } -static void pmac_ide_dma_host_off(ide_drive_t *drive) -{ -} - -static void pmac_ide_dma_host_on(ide_drive_t *drive) +static void pmac_ide_dma_host_set(ide_drive_t *drive, int on) { } @@ -1748,15 +1749,14 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) return; } - hwif->dma_off_quietly = &ide_dma_off_quietly; - hwif->ide_dma_on = &__ide_dma_on; + hwif->sg_max_nents = MAX_DCMDS; + + hwif->dma_host_set = &pmac_ide_dma_host_set; hwif->dma_setup = &pmac_ide_dma_setup; hwif->dma_exec_cmd = &pmac_ide_dma_exec_cmd; hwif->dma_start = &pmac_ide_dma_start; hwif->ide_dma_end = &pmac_ide_dma_end; hwif->ide_dma_test_irq = &pmac_ide_dma_test_irq; - hwif->dma_host_off = &pmac_ide_dma_host_off; - hwif->dma_host_on = &pmac_ide_dma_host_on; hwif->dma_timeout = &ide_dma_timeout; hwif->dma_lost_irq = &pmac_ide_dma_lost_irq; @@ -1786,3 +1786,5 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) } #endif /* CONFIG_BLK_DEV_IDEDMA_PMAC */ + +module_init(pmac_ide_probe); diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index d2cd5a3d38f..676c66e7288 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -165,13 +165,17 @@ static unsigned long ide_get_or_set_dma_base(const struct ide_port_info *d, ide_ dma_base = pci_resource_start(dev, baridx); - if (dma_base == 0) + if (dma_base == 0) { printk(KERN_ERR "%s: DMA base is invalid\n", d->name); + return 0; + } } - if ((d->host_flags & IDE_HFLAG_CS5520) == 0 && dma_base) { + if (hwif->channel) + dma_base += 8; + + if ((d->host_flags & IDE_HFLAG_CS5520) == 0) { u8 simplex_stat = 0; - dma_base += hwif->channel ? 8 : 0; switch(dev->device) { case PCI_DEVICE_ID_AL_M5219: @@ -359,6 +363,8 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port unsigned long ctl = 0, base = 0; ide_hwif_t *hwif; u8 bootable = (d->host_flags & IDE_HFLAG_BOOTABLE) ? 1 : 0; + u8 oldnoprobe = 0; + struct hw_regs_s hw; if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { /* Possibly we should fail if these checks report true */ @@ -381,26 +387,25 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, const struct ide_port } if ((hwif = ide_match_hwif(base, bootable, d->name)) == NULL) return NULL; /* no room in ide_hwifs[] */ - if (hwif->io_ports[IDE_DATA_OFFSET] != base || - hwif->io_ports[IDE_CONTROL_OFFSET] != (ctl | 2)) { - hw_regs_t hw; - - memset(&hw, 0, sizeof(hw)); -#ifndef CONFIG_IDE_ARCH_OBSOLETE_INIT - ide_std_init_ports(&hw, base, ctl | 2); -#else - ide_init_hwif_ports(&hw, base, ctl | 2, NULL); -#endif - memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports)); - hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; - } - hwif->chipset = d->chipset ? d->chipset : ide_pci; + + memset(&hw, 0, sizeof(hw)); + hw.irq = hwif->irq ? hwif->irq : irq; + hw.dev = &dev->dev; + hw.chipset = d->chipset ? d->chipset : ide_pci; + ide_std_init_ports(&hw, base, ctl | 2); + + if (hwif->io_ports[IDE_DATA_OFFSET] == base && + hwif->io_ports[IDE_CONTROL_OFFSET] == (ctl | 2)) + oldnoprobe = hwif->noprobe; + + ide_init_port_hw(hwif, &hw); + + hwif->noprobe = oldnoprobe; + hwif->pci_dev = dev; hwif->cds = d; hwif->channel = port; - if (!hwif->irq) - hwif->irq = irq; if (mate) { hwif->mate = mate; mate->mate = hwif; @@ -535,12 +540,8 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int if ((hwif = ide_hwif_configure(dev, d, mate, port, pciirq)) == NULL) continue; - /* setup proper ancestral information */ - hwif->gendev.parent = &dev->dev; - *(idx + port) = hwif->index; - if (d->init_iops) d->init_iops(hwif); @@ -551,8 +552,6 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, int (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS)) hwif->irq = port ? 15 : 14; - hwif->fixup = d->fixup; - hwif->host_flags = d->host_flags; hwif->pio_mask = d->pio_mask; @@ -699,105 +698,3 @@ out: } EXPORT_SYMBOL_GPL(ide_setup_pci_devices); - -#ifdef CONFIG_IDEPCI_PCIBUS_ORDER -/* - * Module interfaces - */ - -static int pre_init = 1; /* Before first ordered IDE scan */ -static LIST_HEAD(ide_pci_drivers); - -/* - * __ide_pci_register_driver - attach IDE driver - * @driver: pci driver - * @module: owner module of the driver - * - * Registers a driver with the IDE layer. The IDE layer arranges that - * boot time setup is done in the expected device order and then - * hands the controllers off to the core PCI code to do the rest of - * the work. - * - * Returns are the same as for pci_register_driver - */ - -int __ide_pci_register_driver(struct pci_driver *driver, struct module *module, - const char *mod_name) -{ - if (!pre_init) - return __pci_register_driver(driver, module, mod_name); - driver->driver.owner = module; - list_add_tail(&driver->node, &ide_pci_drivers); - return 0; -} -EXPORT_SYMBOL_GPL(__ide_pci_register_driver); - -/** - * ide_scan_pcidev - find an IDE driver for a device - * @dev: PCI device to check - * - * Look for an IDE driver to handle the device we are considering. - * This is only used during boot up to get the ordering correct. After - * boot up the pci layer takes over the job. - */ - -static int __init ide_scan_pcidev(struct pci_dev *dev) -{ - struct list_head *l; - struct pci_driver *d; - - list_for_each(l, &ide_pci_drivers) { - d = list_entry(l, struct pci_driver, node); - if (d->id_table) { - const struct pci_device_id *id = - pci_match_id(d->id_table, dev); - - if (id != NULL && d->probe(dev, id) >= 0) { - dev->driver = d; - pci_dev_get(dev); - return 1; - } - } - } - return 0; -} - -/** - * ide_scan_pcibus - perform the initial IDE driver scan - * @scan_direction: set for reverse order scanning - * - * Perform the initial bus rather than driver ordered scan of the - * PCI drivers. After this all IDE pci handling becomes standard - * module ordering not traditionally ordered. - */ - -void __init ide_scan_pcibus (int scan_direction) -{ - struct pci_dev *dev = NULL; - struct pci_driver *d; - struct list_head *l, *n; - - pre_init = 0; - if (!scan_direction) - while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev))) - ide_scan_pcidev(dev); - else - while ((dev = pci_get_device_reverse(PCI_ANY_ID, PCI_ANY_ID, - dev))) - ide_scan_pcidev(dev); - - /* - * Hand the drivers over to the PCI layer now we - * are post init. - */ - - list_for_each_safe(l, n, &ide_pci_drivers) { - list_del(l); - d = list_entry(l, struct pci_driver, node); - if (__pci_register_driver(d, d->driver.owner, - d->driver.mod_name)) - printk(KERN_ERR "%s: failed to register %s driver\n", - __FUNCTION__, d->driver.mod_name); - } -} -#endif diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c index 48d647abea4..eaba4a9b231 100644 --- a/drivers/macintosh/mediabay.c +++ b/drivers/macintosh/mediabay.c @@ -563,7 +563,8 @@ static void media_bay_step(int i) ide_init_hwif_ports(&hw, (unsigned long) bay->cd_base, (unsigned long) 0, NULL); hw.irq = bay->cd_irq; hw.chipset = ide_pmac; - bay->cd_index = ide_register_hw(&hw, NULL, 0, NULL); + bay->cd_index = + ide_register_hw(&hw, NULL, NULL); pmu_resume(); } if (bay->cd_index == -1) { diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index 5452da1bb1a..b66da74caa5 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -47,12 +47,10 @@ #define LOG_TEMP 0 /* continously log temperature */ -#define I2C_DRIVERID_G4FAN 0x9001 /* fixme */ - static int do_probe( struct i2c_adapter *adapter, int addr, int kind); /* scan 0x48-0x4f (DS1775) and 0x2c-2x2f (ADM1030) */ -static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, +static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; @@ -357,7 +355,6 @@ static struct i2c_driver g4fan_driver = { .driver = { .name = "therm_windtunnel", }, - .id = I2C_DRIVERID_G4FAN, .attach_adapter = do_attach, .detach_client = do_detach, }; diff --git a/drivers/media/video/dpc7146.c b/drivers/media/video/dpc7146.c index 255dae30370..566e479e262 100644 --- a/drivers/media/video/dpc7146.c +++ b/drivers/media/video/dpc7146.c @@ -87,11 +87,24 @@ struct dpc int cur_input; /* current input */ }; +static int dpc_check_clients(struct device *dev, void *data) +{ + struct dpc* dpc = data; + struct i2c_client *client = i2c_verify_client(dev); + + if( !client ) + return 0; + + if( I2C_SAA7111A == client->addr ) + dpc->saa7111a = client; + + return 0; +} + /* fixme: add vbi stuff here */ static int dpc_probe(struct saa7146_dev* dev) { struct dpc* dpc = NULL; - struct i2c_client *client; dpc = kzalloc(sizeof(struct dpc), GFP_KERNEL); if( NULL == dpc ) { @@ -115,9 +128,7 @@ static int dpc_probe(struct saa7146_dev* dev) } /* loop through all i2c-devices on the bus and look who is there */ - list_for_each_entry(client, &dpc->i2c_adapter.clients, list) - if( I2C_SAA7111A == client->addr ) - dpc->saa7111a = client; + device_for_each_child(&dpc->i2c_adapter.dev, dpc, dpc_check_clients); /* check if all devices are present */ if( 0 == dpc->saa7111a ) { diff --git a/drivers/media/video/ks0127.c b/drivers/media/video/ks0127.c index b6cd21e6dab..4895540be19 100644 --- a/drivers/media/video/ks0127.c +++ b/drivers/media/video/ks0127.c @@ -764,7 +764,6 @@ static struct i2c_client ks0127_client_tmpl = .addr = 0, .adapter = NULL, .driver = &i2c_driver_ks0127, - .usage_count = 0 }; static int ks0127_found_proc(struct i2c_adapter *adapter, int addr, int kind) diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c index 98ad3092a07..add6d0d680b 100644 --- a/drivers/media/video/mxb.c +++ b/drivers/media/video/mxb.c @@ -149,10 +149,33 @@ struct mxb static struct saa7146_extension extension; +static int mxb_check_clients(struct device *dev, void *data) +{ + struct mxb* mxb = data; + struct i2c_client *client = i2c_verify_client(dev); + + if( !client ) + return 0; + + if( I2C_ADDR_TEA6420_1 == client->addr ) + mxb->tea6420_1 = client; + if( I2C_ADDR_TEA6420_2 == client->addr ) + mxb->tea6420_2 = client; + if( I2C_TEA6415C_2 == client->addr ) + mxb->tea6415c = client; + if( I2C_ADDR_TDA9840 == client->addr ) + mxb->tda9840 = client; + if( I2C_SAA7111 == client->addr ) + mxb->saa7111a = client; + if( 0x60 == client->addr ) + mxb->tuner = client; + + return 0; +} + static int mxb_probe(struct saa7146_dev* dev) { struct mxb* mxb = NULL; - struct i2c_client *client; int result; if ((result = request_module("saa7111")) < 0) { @@ -195,20 +218,7 @@ static int mxb_probe(struct saa7146_dev* dev) } /* loop through all i2c-devices on the bus and look who is there */ - list_for_each_entry(client, &mxb->i2c_adapter.clients, list) { - if( I2C_ADDR_TEA6420_1 == client->addr ) - mxb->tea6420_1 = client; - if( I2C_ADDR_TEA6420_2 == client->addr ) - mxb->tea6420_2 = client; - if( I2C_TEA6415C_2 == client->addr ) - mxb->tea6415c = client; - if( I2C_ADDR_TDA9840 == client->addr ) - mxb->tda9840 = client; - if( I2C_SAA7111 == client->addr ) - mxb->saa7111a = client; - if( 0x60 == client->addr ) - mxb->tuner = client; - } + device_for_each_child(&mxb->i2c_adapter.dev, mxb, mxb_check_clients); /* check if all devices are present */ if( 0 == mxb->tea6420_1 || 0 == mxb->tea6420_2 || 0 == mxb->tea6415c diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c index 9a03dc82c6c..5bb75294b5a 100644 --- a/drivers/media/video/vino.c +++ b/drivers/media/video/vino.c @@ -2589,11 +2589,7 @@ static int vino_acquire_input(struct vino_channel_settings *vcs) /* First try D1 and then SAA7191 */ if (vino_drvdata->camera.driver && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { - if (i2c_use_client(vino_drvdata->camera.driver)) { - ret = -ENODEV; - goto out; - } - + i2c_use_client(vino_drvdata->camera.driver); vino_drvdata->camera.owner = vcs->channel; vcs->input = VINO_INPUT_D1; vcs->data_norm = VINO_DATA_NORM_D1; @@ -2602,11 +2598,7 @@ static int vino_acquire_input(struct vino_channel_settings *vcs) int input, data_norm; int saa7191_input; - if (i2c_use_client(vino_drvdata->decoder.driver)) { - ret = -ENODEV; - goto out; - } - + i2c_use_client(vino_drvdata->decoder.driver); input = VINO_INPUT_COMPOSITE; saa7191_input = vino_get_saa7191_input(input); @@ -2688,10 +2680,7 @@ static int vino_set_input(struct vino_channel_settings *vcs, int input) } if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { - if (i2c_use_client(vino_drvdata->decoder.driver)) { - ret = -ENODEV; - goto out; - } + i2c_use_client(vino_drvdata->decoder.driver); vino_drvdata->decoder.owner = vcs->channel; } @@ -2759,10 +2748,7 @@ static int vino_set_input(struct vino_channel_settings *vcs, int input) } if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { - if (i2c_use_client(vino_drvdata->camera.driver)) { - ret = -ENODEV; - goto out; - } + i2c_use_client(vino_drvdata->camera.driver); vino_drvdata->camera.owner = vcs->channel; } diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c index b7c8e781386..61aeaf79640 100644 --- a/drivers/mfd/ucb1x00-assabet.c +++ b/drivers/mfd/ucb1x00-assabet.c @@ -20,7 +20,7 @@ #include "ucb1x00.h" #define UCB1X00_ATTR(name,input)\ -static ssize_t name##_show(struct device *dev, struct device_attribute *attr, +static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); \ @@ -38,17 +38,17 @@ UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2); static int ucb1x00_assabet_add(struct ucb1x00_dev *dev) { - device_create_file(&dev->ucb->dev, &device_attr_vbatt); - device_create_file(&dev->ucb->dev, &device_attr_vcharger); - device_create_file(&dev->ucb->dev, &device_attr_batt_temp); + device_create_file(&dev->ucb->dev, &dev_attr_vbatt); + device_create_file(&dev->ucb->dev, &dev_attr_vcharger); + device_create_file(&dev->ucb->dev, &dev_attr_batt_temp); return 0; } static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev) { - device_remove_file(&dev->ucb->cdev, &device_attr_batt_temp); - device_remove_file(&dev->ucb->cdev, &device_attr_vcharger); - device_remove_file(&dev->ucb->cdev, &device_attr_vbatt); + device_remove_file(&dev->ucb->dev, &dev_attr_batt_temp); + device_remove_file(&dev->ucb->dev, &dev_attr_vcharger); + device_remove_file(&dev->ucb->dev, &dev_attr_vbatt); } static struct ucb1x00_driver ucb1x00_assabet_driver = { diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index 971e18b91f4..c9dfeb15b48 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -25,6 +25,7 @@ #include <linux/mmc/card.h> #include <linux/clk.h> #include <linux/scatterlist.h> +#include <linux/i2c/tps65010.h> #include <asm/io.h> #include <asm/irq.h> @@ -35,7 +36,6 @@ #include <asm/arch/dma.h> #include <asm/arch/mux.h> #include <asm/arch/fpga.h> -#include <asm/arch/tps65010.h> #define OMAP_MMC_REG_CMD 0x00 #define OMAP_MMC_REG_ARGL 0x04 diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 9af05a2f4af..a6728661c41 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -212,7 +212,7 @@ config MII config MACB tristate "Atmel MACB support" - depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263 + depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263 || ARCH_AT91CAP9 select PHYLIB help The Atmel MACB ethernet interface is found on many AT32 and AT91 diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c index dfef1637bfb..e0900ca678e 100644 --- a/drivers/rtc/rtc-ds1672.c +++ b/drivers/rtc/rtc-ds1672.c @@ -16,7 +16,7 @@ #define DRV_VERSION "0.3" /* Addresses to scan: none. This chip cannot be detected. */ -static unsigned short normal_i2c[] = { I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD; diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 1c743641b73..725b0c73c33 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -61,7 +61,7 @@ /* i2c configuration */ #define ISL1208_I2C_ADDR 0xde -static unsigned short normal_i2c[] = { +static const unsigned short normal_i2c[] = { ISL1208_I2C_ADDR>>1, I2C_CLIENT_END }; I2C_CLIENT_INSMOD; /* defines addr_data */ diff --git a/drivers/rtc/rtc-max6900.c b/drivers/rtc/rtc-max6900.c index a1cd448639c..7683412970c 100644 --- a/drivers/rtc/rtc-max6900.c +++ b/drivers/rtc/rtc-max6900.c @@ -54,7 +54,7 @@ #define MAX6900_I2C_ADDR 0xa0 -static unsigned short normal_i2c[] = { +static const unsigned short normal_i2c[] = { MAX6900_I2C_ADDR >> 1, I2C_CLIENT_END }; diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index 0242d803ebe..b3317fcc16c 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -25,7 +25,7 @@ * located at 0x51 will pass the validation routine due to * the way the registers are implemented. */ -static unsigned short normal_i2c[] = { I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Module parameters */ I2C_CLIENT_INSMOD; diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c index 556d0e7da35..c973ba94c42 100644 --- a/drivers/rtc/rtc-pcf8583.c +++ b/drivers/rtc/rtc-pcf8583.c @@ -40,7 +40,7 @@ struct pcf8583 { #define CTRL_ALARM 0x02 #define CTRL_TIMER 0x01 -static unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END }; /* Module parameters */ I2C_CLIENT_INSMOD; diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c index b3fae357ca4..b90fb1866ce 100644 --- a/drivers/rtc/rtc-x1205.c +++ b/drivers/rtc/rtc-x1205.c @@ -32,7 +32,7 @@ * unknown chips, the user must explicitly set the probe parameter. */ -static unsigned short normal_i2c[] = { I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD; diff --git a/drivers/s390/block/Makefile b/drivers/s390/block/Makefile index be9f22d52fd..0a89e080b38 100644 --- a/drivers/s390/block/Makefile +++ b/drivers/s390/block/Makefile @@ -2,8 +2,8 @@ # S/390 block devices # -dasd_eckd_mod-objs := dasd_eckd.o dasd_3990_erp.o dasd_9343_erp.o -dasd_fba_mod-objs := dasd_fba.o dasd_3370_erp.o dasd_9336_erp.o +dasd_eckd_mod-objs := dasd_eckd.o dasd_3990_erp.o dasd_alias.o +dasd_fba_mod-objs := dasd_fba.o dasd_diag_mod-objs := dasd_diag.o dasd_mod-objs := dasd.o dasd_ioctl.o dasd_proc.o dasd_devmap.o \ dasd_genhd.o dasd_erp.o diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index e6bfce690ca..1db15f3e5d2 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -48,13 +48,15 @@ MODULE_LICENSE("GPL"); /* * SECTION: prototypes for static functions of dasd.c */ -static int dasd_alloc_queue(struct dasd_device * device); -static void dasd_setup_queue(struct dasd_device * device); -static void dasd_free_queue(struct dasd_device * device); -static void dasd_flush_request_queue(struct dasd_device *); -static int dasd_flush_ccw_queue(struct dasd_device *, int); -static void dasd_tasklet(struct dasd_device *); +static int dasd_alloc_queue(struct dasd_block *); +static void dasd_setup_queue(struct dasd_block *); +static void dasd_free_queue(struct dasd_block *); +static void dasd_flush_request_queue(struct dasd_block *); +static int dasd_flush_block_queue(struct dasd_block *); +static void dasd_device_tasklet(struct dasd_device *); +static void dasd_block_tasklet(struct dasd_block *); static void do_kick_device(struct work_struct *); +static void dasd_return_cqr_cb(struct dasd_ccw_req *, void *); /* * SECTION: Operations on the device structure. @@ -65,26 +67,23 @@ static wait_queue_head_t dasd_flush_wq; /* * Allocate memory for a new device structure. */ -struct dasd_device * -dasd_alloc_device(void) +struct dasd_device *dasd_alloc_device(void) { struct dasd_device *device; - device = kzalloc(sizeof (struct dasd_device), GFP_ATOMIC); - if (device == NULL) + device = kzalloc(sizeof(struct dasd_device), GFP_ATOMIC); + if (!device) return ERR_PTR(-ENOMEM); - /* open_count = 0 means device online but not in use */ - atomic_set(&device->open_count, -1); /* Get two pages for normal block device operations. */ device->ccw_mem = (void *) __get_free_pages(GFP_ATOMIC | GFP_DMA, 1); - if (device->ccw_mem == NULL) { + if (!device->ccw_mem) { kfree(device); return ERR_PTR(-ENOMEM); } /* Get one page for error recovery. */ device->erp_mem = (void *) get_zeroed_page(GFP_ATOMIC | GFP_DMA); - if (device->erp_mem == NULL) { + if (!device->erp_mem) { free_pages((unsigned long) device->ccw_mem, 1); kfree(device); return ERR_PTR(-ENOMEM); @@ -93,10 +92,9 @@ dasd_alloc_device(void) dasd_init_chunklist(&device->ccw_chunks, device->ccw_mem, PAGE_SIZE*2); dasd_init_chunklist(&device->erp_chunks, device->erp_mem, PAGE_SIZE); spin_lock_init(&device->mem_lock); - spin_lock_init(&device->request_queue_lock); - atomic_set (&device->tasklet_scheduled, 0); + atomic_set(&device->tasklet_scheduled, 0); tasklet_init(&device->tasklet, - (void (*)(unsigned long)) dasd_tasklet, + (void (*)(unsigned long)) dasd_device_tasklet, (unsigned long) device); INIT_LIST_HEAD(&device->ccw_queue); init_timer(&device->timer); @@ -110,8 +108,7 @@ dasd_alloc_device(void) /* * Free memory of a device structure. */ -void -dasd_free_device(struct dasd_device *device) +void dasd_free_device(struct dasd_device *device) { kfree(device->private); free_page((unsigned long) device->erp_mem); @@ -120,10 +117,42 @@ dasd_free_device(struct dasd_device *device) } /* + * Allocate memory for a new device structure. + */ +struct dasd_block *dasd_alloc_block(void) +{ + struct dasd_block *block; + + block = kzalloc(sizeof(*block), GFP_ATOMIC); + if (!block) + return ERR_PTR(-ENOMEM); + /* open_count = 0 means device online but not in use */ + atomic_set(&block->open_count, -1); + + spin_lock_init(&block->request_queue_lock); + atomic_set(&block->tasklet_scheduled, 0); + tasklet_init(&block->tasklet, + (void (*)(unsigned long)) dasd_block_tasklet, + (unsigned long) block); + INIT_LIST_HEAD(&block->ccw_queue); + spin_lock_init(&block->queue_lock); + init_timer(&block->timer); + + return block; +} + +/* + * Free memory of a device structure. + */ +void dasd_free_block(struct dasd_block *block) +{ + kfree(block); +} + +/* * Make a new device known to the system. */ -static int -dasd_state_new_to_known(struct dasd_device *device) +static int dasd_state_new_to_known(struct dasd_device *device) { int rc; @@ -133,12 +162,13 @@ dasd_state_new_to_known(struct dasd_device *device) */ dasd_get_device(device); - rc = dasd_alloc_queue(device); - if (rc) { - dasd_put_device(device); - return rc; + if (device->block) { + rc = dasd_alloc_queue(device->block); + if (rc) { + dasd_put_device(device); + return rc; + } } - device->state = DASD_STATE_KNOWN; return 0; } @@ -146,21 +176,24 @@ dasd_state_new_to_known(struct dasd_device *device) /* * Let the system forget about a device. */ -static int -dasd_state_known_to_new(struct dasd_device * device) +static int dasd_state_known_to_new(struct dasd_device *device) { /* Disable extended error reporting for this device. */ dasd_eer_disable(device); /* Forget the discipline information. */ - if (device->discipline) + if (device->discipline) { + if (device->discipline->uncheck_device) + device->discipline->uncheck_device(device); module_put(device->discipline->owner); + } device->discipline = NULL; if (device->base_discipline) module_put(device->base_discipline->owner); device->base_discipline = NULL; device->state = DASD_STATE_NEW; - dasd_free_queue(device); + if (device->block) + dasd_free_queue(device->block); /* Give up reference we took in dasd_state_new_to_known. */ dasd_put_device(device); @@ -170,19 +203,19 @@ dasd_state_known_to_new(struct dasd_device * device) /* * Request the irq line for the device. */ -static int -dasd_state_known_to_basic(struct dasd_device * device) +static int dasd_state_known_to_basic(struct dasd_device *device) { int rc; /* Allocate and register gendisk structure. */ - rc = dasd_gendisk_alloc(device); - if (rc) - return rc; - + if (device->block) { + rc = dasd_gendisk_alloc(device->block); + if (rc) + return rc; + } /* register 'device' debug area, used for all DBF_DEV_XXX calls */ - device->debug_area = debug_register(device->cdev->dev.bus_id, 1, 2, - 8 * sizeof (long)); + device->debug_area = debug_register(device->cdev->dev.bus_id, 1, 1, + 8 * sizeof(long)); debug_register_view(device->debug_area, &debug_sprintf_view); debug_set_level(device->debug_area, DBF_WARNING); DBF_DEV_EVENT(DBF_EMERG, device, "%s", "debug area created"); @@ -194,16 +227,17 @@ dasd_state_known_to_basic(struct dasd_device * device) /* * Release the irq line for the device. Terminate any running i/o. */ -static int -dasd_state_basic_to_known(struct dasd_device * device) +static int dasd_state_basic_to_known(struct dasd_device *device) { int rc; - - dasd_gendisk_free(device); - rc = dasd_flush_ccw_queue(device, 1); + if (device->block) { + dasd_gendisk_free(device->block); + dasd_block_clear_timer(device->block); + } + rc = dasd_flush_device_queue(device); if (rc) return rc; - dasd_clear_timer(device); + dasd_device_clear_timer(device); DBF_DEV_EVENT(DBF_EMERG, device, "%p debug area deleted", device); if (device->debug_area != NULL) { @@ -228,26 +262,32 @@ dasd_state_basic_to_known(struct dasd_device * device) * In case the analysis returns an error, the device setup is stopped * (a fake disk was already added to allow formatting). */ -static int -dasd_state_basic_to_ready(struct dasd_device * device) +static int dasd_state_basic_to_ready(struct dasd_device *device) { int rc; + struct dasd_block *block; rc = 0; - if (device->discipline->do_analysis != NULL) - rc = device->discipline->do_analysis(device); - if (rc) { - if (rc != -EAGAIN) - device->state = DASD_STATE_UNFMT; - return rc; - } + block = device->block; /* make disk known with correct capacity */ - dasd_setup_queue(device); - set_capacity(device->gdp, device->blocks << device->s2b_shift); - device->state = DASD_STATE_READY; - rc = dasd_scan_partitions(device); - if (rc) - device->state = DASD_STATE_BASIC; + if (block) { + if (block->base->discipline->do_analysis != NULL) + rc = block->base->discipline->do_analysis(block); + if (rc) { + if (rc != -EAGAIN) + device->state = DASD_STATE_UNFMT; + return rc; + } + dasd_setup_queue(block); + set_capacity(block->gdp, + block->blocks << block->s2b_shift); + device->state = DASD_STATE_READY; + rc = dasd_scan_partitions(block); + if (rc) + device->state = DASD_STATE_BASIC; + } else { + device->state = DASD_STATE_READY; + } return rc; } @@ -256,28 +296,31 @@ dasd_state_basic_to_ready(struct dasd_device * device) * Forget format information. Check if the target level is basic * and if it is create fake disk for formatting. */ -static int -dasd_state_ready_to_basic(struct dasd_device * device) +static int dasd_state_ready_to_basic(struct dasd_device *device) { int rc; - rc = dasd_flush_ccw_queue(device, 0); - if (rc) - return rc; - dasd_destroy_partitions(device); - dasd_flush_request_queue(device); - device->blocks = 0; - device->bp_block = 0; - device->s2b_shift = 0; device->state = DASD_STATE_BASIC; + if (device->block) { + struct dasd_block *block = device->block; + rc = dasd_flush_block_queue(block); + if (rc) { + device->state = DASD_STATE_READY; + return rc; + } + dasd_destroy_partitions(block); + dasd_flush_request_queue(block); + block->blocks = 0; + block->bp_block = 0; + block->s2b_shift = 0; + } return 0; } /* * Back to basic. */ -static int -dasd_state_unfmt_to_basic(struct dasd_device * device) +static int dasd_state_unfmt_to_basic(struct dasd_device *device) { device->state = DASD_STATE_BASIC; return 0; @@ -291,17 +334,31 @@ dasd_state_unfmt_to_basic(struct dasd_device * device) static int dasd_state_ready_to_online(struct dasd_device * device) { + int rc; + + if (device->discipline->ready_to_online) { + rc = device->discipline->ready_to_online(device); + if (rc) + return rc; + } device->state = DASD_STATE_ONLINE; - dasd_schedule_bh(device); + if (device->block) + dasd_schedule_block_bh(device->block); return 0; } /* * Stop the requeueing of requests again. */ -static int -dasd_state_online_to_ready(struct dasd_device * device) +static int dasd_state_online_to_ready(struct dasd_device *device) { + int rc; + + if (device->discipline->online_to_ready) { + rc = device->discipline->online_to_ready(device); + if (rc) + return rc; + } device->state = DASD_STATE_READY; return 0; } @@ -309,8 +366,7 @@ dasd_state_online_to_ready(struct dasd_device * device) /* * Device startup state changes. */ -static int -dasd_increase_state(struct dasd_device *device) +static int dasd_increase_state(struct dasd_device *device) { int rc; @@ -345,8 +401,7 @@ dasd_increase_state(struct dasd_device *device) /* * Device shutdown state changes. */ -static int -dasd_decrease_state(struct dasd_device *device) +static int dasd_decrease_state(struct dasd_device *device) { int rc; @@ -381,8 +436,7 @@ dasd_decrease_state(struct dasd_device *device) /* * This is the main startup/shutdown routine. */ -static void -dasd_change_state(struct dasd_device *device) +static void dasd_change_state(struct dasd_device *device) { int rc; @@ -409,17 +463,15 @@ dasd_change_state(struct dasd_device *device) * dasd_kick_device will schedule a call do do_kick_device to the kernel * event daemon. */ -static void -do_kick_device(struct work_struct *work) +static void do_kick_device(struct work_struct *work) { struct dasd_device *device = container_of(work, struct dasd_device, kick_work); dasd_change_state(device); - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); dasd_put_device(device); } -void -dasd_kick_device(struct dasd_device *device) +void dasd_kick_device(struct dasd_device *device) { dasd_get_device(device); /* queue call to dasd_kick_device to the kernel event daemon. */ @@ -429,8 +481,7 @@ dasd_kick_device(struct dasd_device *device) /* * Set the target state for a device and starts the state change. */ -void -dasd_set_target_state(struct dasd_device *device, int target) +void dasd_set_target_state(struct dasd_device *device, int target) { /* If we are in probeonly mode stop at DASD_STATE_READY. */ if (dasd_probeonly && target > DASD_STATE_READY) @@ -447,14 +498,12 @@ dasd_set_target_state(struct dasd_device *device, int target) /* * Enable devices with device numbers in [from..to]. */ -static inline int -_wait_for_device(struct dasd_device *device) +static inline int _wait_for_device(struct dasd_device *device) { return (device->state == device->target); } -void -dasd_enable_device(struct dasd_device *device) +void dasd_enable_device(struct dasd_device *device) { dasd_set_target_state(device, DASD_STATE_ONLINE); if (device->state <= DASD_STATE_KNOWN) @@ -475,20 +524,20 @@ unsigned int dasd_profile_level = DASD_PROFILE_OFF; /* * Increments counter in global and local profiling structures. */ -#define dasd_profile_counter(value, counter, device) \ +#define dasd_profile_counter(value, counter, block) \ { \ int index; \ for (index = 0; index < 31 && value >> (2+index); index++); \ dasd_global_profile.counter[index]++; \ - device->profile.counter[index]++; \ + block->profile.counter[index]++; \ } /* * Add profiling information for cqr before execution. */ -static void -dasd_profile_start(struct dasd_device *device, struct dasd_ccw_req * cqr, - struct request *req) +static void dasd_profile_start(struct dasd_block *block, + struct dasd_ccw_req *cqr, + struct request *req) { struct list_head *l; unsigned int counter; @@ -498,19 +547,19 @@ dasd_profile_start(struct dasd_device *device, struct dasd_ccw_req * cqr, /* count the length of the chanq for statistics */ counter = 0; - list_for_each(l, &device->ccw_queue) + list_for_each(l, &block->ccw_queue) if (++counter >= 31) break; dasd_global_profile.dasd_io_nr_req[counter]++; - device->profile.dasd_io_nr_req[counter]++; + block->profile.dasd_io_nr_req[counter]++; } /* * Add profiling information for cqr after execution. */ -static void -dasd_profile_end(struct dasd_device *device, struct dasd_ccw_req * cqr, - struct request *req) +static void dasd_profile_end(struct dasd_block *block, + struct dasd_ccw_req *cqr, + struct request *req) { long strtime, irqtime, endtime, tottime; /* in microseconds */ long tottimeps, sectors; @@ -532,27 +581,27 @@ dasd_profile_end(struct dasd_device *device, struct dasd_ccw_req * cqr, if (!dasd_global_profile.dasd_io_reqs) memset(&dasd_global_profile, 0, - sizeof (struct dasd_profile_info_t)); + sizeof(struct dasd_profile_info_t)); dasd_global_profile.dasd_io_reqs++; dasd_global_profile.dasd_io_sects += sectors; - if (!device->profile.dasd_io_reqs) - memset(&device->profile, 0, - sizeof (struct dasd_profile_info_t)); - device->profile.dasd_io_reqs++; - device->profile.dasd_io_sects += sectors; + if (!block->profile.dasd_io_reqs) + memset(&block->profile, 0, + sizeof(struct dasd_profile_info_t)); + block->profile.dasd_io_reqs++; + block->profile.dasd_io_sects += sectors; - dasd_profile_counter(sectors, dasd_io_secs, device); - dasd_profile_counter(tottime, dasd_io_times, device); - dasd_profile_counter(tottimeps, dasd_io_timps, device); - dasd_profile_counter(strtime, dasd_io_time1, device); - dasd_profile_counter(irqtime, dasd_io_time2, device); - dasd_profile_counter(irqtime / sectors, dasd_io_time2ps, device); - dasd_profile_counter(endtime, dasd_io_time3, device); + dasd_profile_counter(sectors, dasd_io_secs, block); + dasd_profile_counter(tottime, dasd_io_times, block); + dasd_profile_counter(tottimeps, dasd_io_timps, block); + dasd_profile_counter(strtime, dasd_io_time1, block); + dasd_profile_counter(irqtime, dasd_io_time2, block); + dasd_profile_counter(irqtime / sectors, dasd_io_time2ps, block); + dasd_profile_counter(endtime, dasd_io_time3, block); } #else -#define dasd_profile_start(device, cqr, req) do {} while (0) -#define dasd_profile_end(device, cqr, req) do {} while (0) +#define dasd_profile_start(block, cqr, req) do {} while (0) +#define dasd_profile_end(block, cqr, req) do {} while (0) #endif /* CONFIG_DASD_PROFILE */ /* @@ -562,9 +611,9 @@ dasd_profile_end(struct dasd_device *device, struct dasd_ccw_req * cqr, * memory and 2) dasd_smalloc_request uses the static ccw memory * that gets allocated for each device. */ -struct dasd_ccw_req * -dasd_kmalloc_request(char *magic, int cplength, int datasize, - struct dasd_device * device) +struct dasd_ccw_req *dasd_kmalloc_request(char *magic, int cplength, + int datasize, + struct dasd_device *device) { struct dasd_ccw_req *cqr; @@ -600,9 +649,9 @@ dasd_kmalloc_request(char *magic, int cplength, int datasize, return cqr; } -struct dasd_ccw_req * -dasd_smalloc_request(char *magic, int cplength, int datasize, - struct dasd_device * device) +struct dasd_ccw_req *dasd_smalloc_request(char *magic, int cplength, + int datasize, + struct dasd_device *device) { unsigned long flags; struct dasd_ccw_req *cqr; @@ -649,8 +698,7 @@ dasd_smalloc_request(char *magic, int cplength, int datasize, * idal lists that might have been created by dasd_set_cda and the * struct dasd_ccw_req itself. */ -void -dasd_kfree_request(struct dasd_ccw_req * cqr, struct dasd_device * device) +void dasd_kfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device) { #ifdef CONFIG_64BIT struct ccw1 *ccw; @@ -667,8 +715,7 @@ dasd_kfree_request(struct dasd_ccw_req * cqr, struct dasd_device * device) dasd_put_device(device); } -void -dasd_sfree_request(struct dasd_ccw_req * cqr, struct dasd_device * device) +void dasd_sfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device) { unsigned long flags; @@ -681,14 +728,13 @@ dasd_sfree_request(struct dasd_ccw_req * cqr, struct dasd_device * device) /* * Check discipline magic in cqr. */ -static inline int -dasd_check_cqr(struct dasd_ccw_req *cqr) +static inline int dasd_check_cqr(struct dasd_ccw_req *cqr) { struct dasd_device *device; if (cqr == NULL) return -EINVAL; - device = cqr->device; + device = cqr->startdev; if (strncmp((char *) &cqr->magic, device->discipline->ebcname, 4)) { DEV_MESSAGE(KERN_WARNING, device, " dasd_ccw_req 0x%08x magic doesn't match" @@ -706,8 +752,7 @@ dasd_check_cqr(struct dasd_ccw_req *cqr) * ccw_device_clear can fail if the i/o subsystem * is in a bad mood. */ -int -dasd_term_IO(struct dasd_ccw_req * cqr) +int dasd_term_IO(struct dasd_ccw_req *cqr) { struct dasd_device *device; int retries, rc; @@ -717,13 +762,13 @@ dasd_term_IO(struct dasd_ccw_req * cqr) if (rc) return rc; retries = 0; - device = (struct dasd_device *) cqr->device; + device = (struct dasd_device *) cqr->startdev; while ((retries < 5) && (cqr->status == DASD_CQR_IN_IO)) { rc = ccw_device_clear(device->cdev, (long) cqr); switch (rc) { case 0: /* termination successful */ cqr->retries--; - cqr->status = DASD_CQR_CLEAR; + cqr->status = DASD_CQR_CLEAR_PENDING; cqr->stopclk = get_clock(); cqr->starttime = 0; DBF_DEV_EVENT(DBF_DEBUG, device, @@ -753,7 +798,7 @@ dasd_term_IO(struct dasd_ccw_req * cqr) } retries++; } - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); return rc; } @@ -761,8 +806,7 @@ dasd_term_IO(struct dasd_ccw_req * cqr) * Start the i/o. This start_IO can fail if the channel is really busy. * In that case set up a timer to start the request later. */ -int -dasd_start_IO(struct dasd_ccw_req * cqr) +int dasd_start_IO(struct dasd_ccw_req *cqr) { struct dasd_device *device; int rc; @@ -771,12 +815,12 @@ dasd_start_IO(struct dasd_ccw_req * cqr) rc = dasd_check_cqr(cqr); if (rc) return rc; - device = (struct dasd_device *) cqr->device; + device = (struct dasd_device *) cqr->startdev; if (cqr->retries < 0) { DEV_MESSAGE(KERN_DEBUG, device, "start_IO: request %p (%02x/%i) - no retry left.", cqr, cqr->status, cqr->retries); - cqr->status = DASD_CQR_FAILED; + cqr->status = DASD_CQR_ERROR; return -EIO; } cqr->startclk = get_clock(); @@ -833,8 +877,7 @@ dasd_start_IO(struct dasd_ccw_req * cqr) * The head of the ccw queue will have status DASD_CQR_IN_IO for 1), * DASD_CQR_QUEUED for 2) and 3). */ -static void -dasd_timeout_device(unsigned long ptr) +static void dasd_device_timeout(unsigned long ptr) { unsigned long flags; struct dasd_device *device; @@ -844,14 +887,13 @@ dasd_timeout_device(unsigned long ptr) /* re-activate request queue */ device->stopped &= ~DASD_STOPPED_PENDING; spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); } /* * Setup timeout for a device in jiffies. */ -void -dasd_set_timer(struct dasd_device *device, int expires) +void dasd_device_set_timer(struct dasd_device *device, int expires) { if (expires == 0) { if (timer_pending(&device->timer)) @@ -862,7 +904,7 @@ dasd_set_timer(struct dasd_device *device, int expires) if (mod_timer(&device->timer, jiffies + expires)) return; } - device->timer.function = dasd_timeout_device; + device->timer.function = dasd_device_timeout; device->timer.data = (unsigned long) device; device->timer.expires = jiffies + expires; add_timer(&device->timer); @@ -871,15 +913,14 @@ dasd_set_timer(struct dasd_device *device, int expires) /* * Clear timeout for a device. */ -void -dasd_clear_timer(struct dasd_device *device) +void dasd_device_clear_timer(struct dasd_device *device) { if (timer_pending(&device->timer)) del_timer(&device->timer); } -static void -dasd_handle_killed_request(struct ccw_device *cdev, unsigned long intparm) +static void dasd_handle_killed_request(struct ccw_device *cdev, + unsigned long intparm) { struct dasd_ccw_req *cqr; struct dasd_device *device; @@ -893,7 +934,7 @@ dasd_handle_killed_request(struct ccw_device *cdev, unsigned long intparm) return; } - device = (struct dasd_device *) cqr->device; + device = (struct dasd_device *) cqr->startdev; if (device == NULL || device != dasd_device_from_cdev_locked(cdev) || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { @@ -905,46 +946,32 @@ dasd_handle_killed_request(struct ccw_device *cdev, unsigned long intparm) /* Schedule request to be retried. */ cqr->status = DASD_CQR_QUEUED; - dasd_clear_timer(device); - dasd_schedule_bh(device); + dasd_device_clear_timer(device); + dasd_schedule_device_bh(device); dasd_put_device(device); } -static void -dasd_handle_state_change_pending(struct dasd_device *device) +void dasd_generic_handle_state_change(struct dasd_device *device) { - struct dasd_ccw_req *cqr; - struct list_head *l, *n; - /* First of all start sense subsystem status request. */ dasd_eer_snss(device); device->stopped &= ~DASD_STOPPED_PENDING; - - /* restart all 'running' IO on queue */ - list_for_each_safe(l, n, &device->ccw_queue) { - cqr = list_entry(l, struct dasd_ccw_req, list); - if (cqr->status == DASD_CQR_IN_IO) { - cqr->status = DASD_CQR_QUEUED; - } - } - dasd_clear_timer(device); - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); + if (device->block) + dasd_schedule_block_bh(device->block); } /* * Interrupt handler for "normal" ssch-io based dasd devices. */ -void -dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, - struct irb *irb) +void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, + struct irb *irb) { struct dasd_ccw_req *cqr, *next; struct dasd_device *device; unsigned long long now; int expires; - dasd_era_t era; - char mask; if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { @@ -969,29 +996,25 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, cdev->dev.bus_id, ((irb->scsw.cstat<<8)|irb->scsw.dstat), (unsigned int) intparm); - /* first of all check for state change pending interrupt */ - mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; - if ((irb->scsw.dstat & mask) == mask) { + /* check for unsolicited interrupts */ + cqr = (struct dasd_ccw_req *) intparm; + if (!cqr || ((irb->scsw.cc == 1) && + (irb->scsw.fctl & SCSW_FCTL_START_FUNC) && + (irb->scsw.stctl & SCSW_STCTL_STATUS_PEND)) ) { + if (cqr && cqr->status == DASD_CQR_IN_IO) + cqr->status = DASD_CQR_QUEUED; device = dasd_device_from_cdev_locked(cdev); if (!IS_ERR(device)) { - dasd_handle_state_change_pending(device); + dasd_device_clear_timer(device); + device->discipline->handle_unsolicited_interrupt(device, + irb); dasd_put_device(device); } return; } - cqr = (struct dasd_ccw_req *) intparm; - - /* check for unsolicited interrupts */ - if (cqr == NULL) { - MESSAGE(KERN_DEBUG, - "unsolicited interrupt received: bus_id %s", - cdev->dev.bus_id); - return; - } - - device = (struct dasd_device *) cqr->device; - if (device == NULL || + device = (struct dasd_device *) cqr->startdev; + if (!device || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", cdev->dev.bus_id); @@ -999,12 +1022,12 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, } /* Check for clear pending */ - if (cqr->status == DASD_CQR_CLEAR && + if (cqr->status == DASD_CQR_CLEAR_PENDING && irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { - cqr->status = DASD_CQR_QUEUED; - dasd_clear_timer(device); + cqr->status = DASD_CQR_CLEARED; + dasd_device_clear_timer(device); wake_up(&dasd_flush_wq); - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); return; } @@ -1017,277 +1040,170 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, } DBF_DEV_EVENT(DBF_DEBUG, device, "Int: CS/DS 0x%04x for cqr %p", ((irb->scsw.cstat << 8) | irb->scsw.dstat), cqr); - - /* Find out the appropriate era_action. */ - if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) - era = dasd_era_fatal; - else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && - irb->scsw.cstat == 0 && - !irb->esw.esw0.erw.cons) - era = dasd_era_none; - else if (irb->esw.esw0.erw.cons) - era = device->discipline->examine_error(cqr, irb); - else - era = dasd_era_recover; - - DBF_DEV_EVENT(DBF_DEBUG, device, "era_code %d", era); + next = NULL; expires = 0; - if (era == dasd_era_none) { - cqr->status = DASD_CQR_DONE; + if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && + irb->scsw.cstat == 0 && !irb->esw.esw0.erw.cons) { + /* request was completed successfully */ + cqr->status = DASD_CQR_SUCCESS; cqr->stopclk = now; /* Start first request on queue if possible -> fast_io. */ - if (cqr->list.next != &device->ccw_queue) { - next = list_entry(cqr->list.next, - struct dasd_ccw_req, list); - if ((next->status == DASD_CQR_QUEUED) && - (!device->stopped)) { - if (device->discipline->start_IO(next) == 0) - expires = next->expires; - else - DEV_MESSAGE(KERN_DEBUG, device, "%s", - "Interrupt fastpath " - "failed!"); - } + if (cqr->devlist.next != &device->ccw_queue) { + next = list_entry(cqr->devlist.next, + struct dasd_ccw_req, devlist); } - } else { /* error */ - memcpy(&cqr->irb, irb, sizeof (struct irb)); + } else { /* error */ + memcpy(&cqr->irb, irb, sizeof(struct irb)); if (device->features & DASD_FEATURE_ERPLOG) { - /* dump sense data */ dasd_log_sense(cqr, irb); } - switch (era) { - case dasd_era_fatal: - cqr->status = DASD_CQR_FAILED; - cqr->stopclk = now; - break; - case dasd_era_recover: + /* If we have no sense data, or we just don't want complex ERP + * for this request, but if we have retries left, then just + * reset this request and retry it in the fastpath + */ + if (!(cqr->irb.esw.esw0.erw.cons && + test_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags)) && + cqr->retries > 0) { + DEV_MESSAGE(KERN_DEBUG, device, + "default ERP in fastpath (%i retries left)", + cqr->retries); + cqr->lpm = LPM_ANYPATH; + cqr->status = DASD_CQR_QUEUED; + next = cqr; + } else cqr->status = DASD_CQR_ERROR; - break; - default: - BUG(); - } + } + if (next && (next->status == DASD_CQR_QUEUED) && + (!device->stopped)) { + if (device->discipline->start_IO(next) == 0) + expires = next->expires; + else + DEV_MESSAGE(KERN_DEBUG, device, "%s", + "Interrupt fastpath " + "failed!"); } if (expires != 0) - dasd_set_timer(device, expires); + dasd_device_set_timer(device, expires); else - dasd_clear_timer(device); - dasd_schedule_bh(device); + dasd_device_clear_timer(device); + dasd_schedule_device_bh(device); } /* - * posts the buffer_cache about a finalized request + * If we have an error on a dasd_block layer request then we cancel + * and return all further requests from the same dasd_block as well. */ -static inline void -dasd_end_request(struct request *req, int uptodate) +static void __dasd_device_recovery(struct dasd_device *device, + struct dasd_ccw_req *ref_cqr) { - if (end_that_request_first(req, uptodate, req->hard_nr_sectors)) - BUG(); - add_disk_randomness(req->rq_disk); - end_that_request_last(req, uptodate); -} + struct list_head *l, *n; + struct dasd_ccw_req *cqr; -/* - * Process finished error recovery ccw. - */ -static inline void -__dasd_process_erp(struct dasd_device *device, struct dasd_ccw_req *cqr) -{ - dasd_erp_fn_t erp_fn; + /* + * only requeue request that came from the dasd_block layer + */ + if (!ref_cqr->block) + return; - if (cqr->status == DASD_CQR_DONE) - DBF_DEV_EVENT(DBF_NOTICE, device, "%s", "ERP successful"); - else - DEV_MESSAGE(KERN_ERR, device, "%s", "ERP unsuccessful"); - erp_fn = device->discipline->erp_postaction(cqr); - erp_fn(cqr); -} + list_for_each_safe(l, n, &device->ccw_queue) { + cqr = list_entry(l, struct dasd_ccw_req, devlist); + if (cqr->status == DASD_CQR_QUEUED && + ref_cqr->block == cqr->block) { + cqr->status = DASD_CQR_CLEARED; + } + } +}; /* - * Process ccw request queue. + * Remove those ccw requests from the queue that need to be returned + * to the upper layer. */ -static void -__dasd_process_ccw_queue(struct dasd_device * device, - struct list_head *final_queue) +static void __dasd_device_process_ccw_queue(struct dasd_device *device, + struct list_head *final_queue) { struct list_head *l, *n; struct dasd_ccw_req *cqr; - dasd_erp_fn_t erp_fn; -restart: /* Process request with final status. */ list_for_each_safe(l, n, &device->ccw_queue) { - cqr = list_entry(l, struct dasd_ccw_req, list); + cqr = list_entry(l, struct dasd_ccw_req, devlist); + /* Stop list processing at the first non-final request. */ - if (cqr->status != DASD_CQR_DONE && - cqr->status != DASD_CQR_FAILED && - cqr->status != DASD_CQR_ERROR) + if (cqr->status == DASD_CQR_QUEUED || + cqr->status == DASD_CQR_IN_IO || + cqr->status == DASD_CQR_CLEAR_PENDING) break; - /* Process requests with DASD_CQR_ERROR */ if (cqr->status == DASD_CQR_ERROR) { - if (cqr->irb.scsw.fctl & SCSW_FCTL_HALT_FUNC) { - cqr->status = DASD_CQR_FAILED; - cqr->stopclk = get_clock(); - } else { - if (cqr->irb.esw.esw0.erw.cons && - test_bit(DASD_CQR_FLAGS_USE_ERP, - &cqr->flags)) { - erp_fn = device->discipline-> - erp_action(cqr); - erp_fn(cqr); - } else - dasd_default_erp_action(cqr); - } - goto restart; - } - - /* First of all call extended error reporting. */ - if (dasd_eer_enabled(device) && - cqr->status == DASD_CQR_FAILED) { - dasd_eer_write(device, cqr, DASD_EER_FATALERROR); - - /* restart request */ - cqr->status = DASD_CQR_QUEUED; - cqr->retries = 255; - device->stopped |= DASD_STOPPED_QUIESCE; - goto restart; + __dasd_device_recovery(device, cqr); } - - /* Process finished ERP request. */ - if (cqr->refers) { - __dasd_process_erp(device, cqr); - goto restart; - } - /* Rechain finished requests to final queue */ - cqr->endclk = get_clock(); - list_move_tail(&cqr->list, final_queue); + list_move_tail(&cqr->devlist, final_queue); } } -static void -dasd_end_request_cb(struct dasd_ccw_req * cqr, void *data) -{ - struct request *req; - struct dasd_device *device; - int status; - - req = (struct request *) data; - device = cqr->device; - dasd_profile_end(device, cqr, req); - status = cqr->device->discipline->free_cp(cqr,req); - spin_lock_irq(&device->request_queue_lock); - dasd_end_request(req, status); - spin_unlock_irq(&device->request_queue_lock); -} - - /* - * Fetch requests from the block device queue. + * the cqrs from the final queue are returned to the upper layer + * by setting a dasd_block state and calling the callback function */ -static void -__dasd_process_blk_queue(struct dasd_device * device) +static void __dasd_device_process_final_queue(struct dasd_device *device, + struct list_head *final_queue) { - struct request_queue *queue; - struct request *req; + struct list_head *l, *n; struct dasd_ccw_req *cqr; - int nr_queued; - - queue = device->request_queue; - /* No queue ? Then there is nothing to do. */ - if (queue == NULL) - return; - - /* - * We requeue request from the block device queue to the ccw - * queue only in two states. In state DASD_STATE_READY the - * partition detection is done and we need to requeue requests - * for that. State DASD_STATE_ONLINE is normal block device - * operation. - */ - if (device->state != DASD_STATE_READY && - device->state != DASD_STATE_ONLINE) - return; - nr_queued = 0; - /* Now we try to fetch requests from the request queue */ - list_for_each_entry(cqr, &device->ccw_queue, list) - if (cqr->status == DASD_CQR_QUEUED) - nr_queued++; - while (!blk_queue_plugged(queue) && - elv_next_request(queue) && - nr_queued < DASD_CHANQ_MAX_SIZE) { - req = elv_next_request(queue); - if (device->features & DASD_FEATURE_READONLY && - rq_data_dir(req) == WRITE) { - DBF_DEV_EVENT(DBF_ERR, device, - "Rejecting write request %p", - req); - blkdev_dequeue_request(req); - dasd_end_request(req, 0); - continue; - } - if (device->stopped & DASD_STOPPED_DC_EIO) { - blkdev_dequeue_request(req); - dasd_end_request(req, 0); - continue; - } - cqr = device->discipline->build_cp(device, req); - if (IS_ERR(cqr)) { - if (PTR_ERR(cqr) == -ENOMEM) - break; /* terminate request queue loop */ - if (PTR_ERR(cqr) == -EAGAIN) { - /* - * The current request cannot be build right - * now, we have to try later. If this request - * is the head-of-queue we stop the device - * for 1/2 second. - */ - if (!list_empty(&device->ccw_queue)) - break; - device->stopped |= DASD_STOPPED_PENDING; - dasd_set_timer(device, HZ/2); - break; - } - DBF_DEV_EVENT(DBF_ERR, device, - "CCW creation failed (rc=%ld) " - "on request %p", - PTR_ERR(cqr), req); - blkdev_dequeue_request(req); - dasd_end_request(req, 0); - continue; + list_for_each_safe(l, n, final_queue) { + cqr = list_entry(l, struct dasd_ccw_req, devlist); + list_del_init(&cqr->devlist); + if (cqr->block) + spin_lock_bh(&cqr->block->queue_lock); + switch (cqr->status) { + case DASD_CQR_SUCCESS: + cqr->status = DASD_CQR_DONE; + break; + case DASD_CQR_ERROR: + cqr->status = DASD_CQR_NEED_ERP; + break; + case DASD_CQR_CLEARED: + cqr->status = DASD_CQR_TERMINATED; + break; + default: + DEV_MESSAGE(KERN_ERR, device, + "wrong cqr status in __dasd_process_final_queue " + "for cqr %p, status %x", + cqr, cqr->status); + BUG(); } - cqr->callback = dasd_end_request_cb; - cqr->callback_data = (void *) req; - cqr->status = DASD_CQR_QUEUED; - blkdev_dequeue_request(req); - list_add_tail(&cqr->list, &device->ccw_queue); - dasd_profile_start(device, cqr, req); - nr_queued++; + if (cqr->block) + spin_unlock_bh(&cqr->block->queue_lock); + if (cqr->callback != NULL) + (cqr->callback)(cqr, cqr->callback_data); } } + + /* * Take a look at the first request on the ccw queue and check * if it reached its expire time. If so, terminate the IO. */ -static void -__dasd_check_expire(struct dasd_device * device) +static void __dasd_device_check_expire(struct dasd_device *device) { struct dasd_ccw_req *cqr; if (list_empty(&device->ccw_queue)) return; - cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); + cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist); if ((cqr->status == DASD_CQR_IN_IO && cqr->expires != 0) && (time_after_eq(jiffies, cqr->expires + cqr->starttime))) { if (device->discipline->term_IO(cqr) != 0) { /* Hmpf, try again in 5 sec */ - dasd_set_timer(device, 5*HZ); DEV_MESSAGE(KERN_ERR, device, "internal error - timeout (%is) expired " "for cqr %p, termination failed, " "retrying in 5s", (cqr->expires/HZ), cqr); + cqr->expires += 5*HZ; + dasd_device_set_timer(device, 5*HZ); } else { DEV_MESSAGE(KERN_ERR, device, "internal error - timeout (%is) expired " @@ -1301,77 +1217,53 @@ __dasd_check_expire(struct dasd_device * device) * Take a look at the first request on the ccw queue and check * if it needs to be started. */ -static void -__dasd_start_head(struct dasd_device * device) +static void __dasd_device_start_head(struct dasd_device *device) { struct dasd_ccw_req *cqr; int rc; if (list_empty(&device->ccw_queue)) return; - cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); + cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist); if (cqr->status != DASD_CQR_QUEUED) return; - /* Non-temporary stop condition will trigger fail fast */ - if (device->stopped & ~DASD_STOPPED_PENDING && - test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) && - (!dasd_eer_enabled(device))) { - cqr->status = DASD_CQR_FAILED; - dasd_schedule_bh(device); + /* when device is stopped, return request to previous layer */ + if (device->stopped) { + cqr->status = DASD_CQR_CLEARED; + dasd_schedule_device_bh(device); return; } - /* Don't try to start requests if device is stopped */ - if (device->stopped) - return; rc = device->discipline->start_IO(cqr); if (rc == 0) - dasd_set_timer(device, cqr->expires); + dasd_device_set_timer(device, cqr->expires); else if (rc == -EACCES) { - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); } else /* Hmpf, try again in 1/2 sec */ - dasd_set_timer(device, 50); -} - -static inline int -_wait_for_clear(struct dasd_ccw_req *cqr) -{ - return (cqr->status == DASD_CQR_QUEUED); + dasd_device_set_timer(device, 50); } /* - * Remove all requests from the ccw queue (all = '1') or only block device - * requests in case all = '0'. - * Take care of the erp-chain (chained via cqr->refers) and remove either - * the whole erp-chain or none of the erp-requests. - * If a request is currently running, term_IO is called and the request - * is re-queued. Prior to removing the terminated request we need to wait - * for the clear-interrupt. - * In case termination is not possible we stop processing and just finishing - * the already moved requests. + * Go through all request on the dasd_device request queue, + * terminate them on the cdev if necessary, and return them to the + * submitting layer via callback. + * Note: + * Make sure that all 'submitting layers' still exist when + * this function is called!. In other words, when 'device' is a base + * device then all block layer requests must have been removed before + * via dasd_flush_block_queue. */ -static int -dasd_flush_ccw_queue(struct dasd_device * device, int all) +int dasd_flush_device_queue(struct dasd_device *device) { - struct dasd_ccw_req *cqr, *orig, *n; - int rc, i; - + struct dasd_ccw_req *cqr, *n; + int rc; struct list_head flush_queue; INIT_LIST_HEAD(&flush_queue); spin_lock_irq(get_ccwdev_lock(device->cdev)); rc = 0; -restart: - list_for_each_entry_safe(cqr, n, &device->ccw_queue, list) { - /* get original request of erp request-chain */ - for (orig = cqr; orig->refers != NULL; orig = orig->refers); - - /* Flush all request or only block device requests? */ - if (all == 0 && cqr->callback != dasd_end_request_cb && - orig->callback != dasd_end_request_cb) { - continue; - } + list_for_each_entry_safe(cqr, n, &device->ccw_queue, devlist) { /* Check status and move request to flush_queue */ switch (cqr->status) { case DASD_CQR_IN_IO: @@ -1387,90 +1279,60 @@ restart: } break; case DASD_CQR_QUEUED: - case DASD_CQR_ERROR: - /* set request to FAILED */ cqr->stopclk = get_clock(); - cqr->status = DASD_CQR_FAILED; + cqr->status = DASD_CQR_CLEARED; break; - default: /* do not touch the others */ + default: /* no need to modify the others */ break; } - /* Rechain request (including erp chain) */ - for (i = 0; cqr != NULL; cqr = cqr->refers, i++) { - cqr->endclk = get_clock(); - list_move_tail(&cqr->list, &flush_queue); - } - if (i > 1) - /* moved more than one request - need to restart */ - goto restart; + list_move_tail(&cqr->devlist, &flush_queue); } - finished: spin_unlock_irq(get_ccwdev_lock(device->cdev)); - /* Now call the callback function of flushed requests */ -restart_cb: - list_for_each_entry_safe(cqr, n, &flush_queue, list) { - if (cqr->status == DASD_CQR_CLEAR) { - /* wait for clear interrupt! */ - wait_event(dasd_flush_wq, _wait_for_clear(cqr)); - cqr->status = DASD_CQR_FAILED; - } - /* Process finished ERP request. */ - if (cqr->refers) { - __dasd_process_erp(device, cqr); - /* restart list_for_xx loop since dasd_process_erp - * might remove multiple elements */ - goto restart_cb; - } - /* call the callback function */ - cqr->endclk = get_clock(); - if (cqr->callback != NULL) - (cqr->callback)(cqr, cqr->callback_data); - } + /* + * After this point all requests must be in state CLEAR_PENDING, + * CLEARED, SUCCESS or ERROR. Now wait for CLEAR_PENDING to become + * one of the others. + */ + list_for_each_entry_safe(cqr, n, &flush_queue, devlist) + wait_event(dasd_flush_wq, + (cqr->status != DASD_CQR_CLEAR_PENDING)); + /* + * Now set each request back to TERMINATED, DONE or NEED_ERP + * and call the callback function of flushed requests + */ + __dasd_device_process_final_queue(device, &flush_queue); return rc; } /* * Acquire the device lock and process queues for the device. */ -static void -dasd_tasklet(struct dasd_device * device) +static void dasd_device_tasklet(struct dasd_device *device) { struct list_head final_queue; - struct list_head *l, *n; - struct dasd_ccw_req *cqr; atomic_set (&device->tasklet_scheduled, 0); INIT_LIST_HEAD(&final_queue); spin_lock_irq(get_ccwdev_lock(device->cdev)); /* Check expire time of first request on the ccw queue. */ - __dasd_check_expire(device); - /* Finish off requests on ccw queue */ - __dasd_process_ccw_queue(device, &final_queue); + __dasd_device_check_expire(device); + /* find final requests on ccw queue */ + __dasd_device_process_ccw_queue(device, &final_queue); spin_unlock_irq(get_ccwdev_lock(device->cdev)); /* Now call the callback function of requests with final status */ - list_for_each_safe(l, n, &final_queue) { - cqr = list_entry(l, struct dasd_ccw_req, list); - list_del_init(&cqr->list); - if (cqr->callback != NULL) - (cqr->callback)(cqr, cqr->callback_data); - } - spin_lock_irq(&device->request_queue_lock); - spin_lock(get_ccwdev_lock(device->cdev)); - /* Get new request from the block device request queue */ - __dasd_process_blk_queue(device); + __dasd_device_process_final_queue(device, &final_queue); + spin_lock_irq(get_ccwdev_lock(device->cdev)); /* Now check if the head of the ccw queue needs to be started. */ - __dasd_start_head(device); - spin_unlock(get_ccwdev_lock(device->cdev)); - spin_unlock_irq(&device->request_queue_lock); + __dasd_device_start_head(device); + spin_unlock_irq(get_ccwdev_lock(device->cdev)); dasd_put_device(device); } /* * Schedules a call to dasd_tasklet over the device tasklet. */ -void -dasd_schedule_bh(struct dasd_device * device) +void dasd_schedule_device_bh(struct dasd_device *device) { /* Protect against rescheduling. */ if (atomic_cmpxchg (&device->tasklet_scheduled, 0, 1) != 0) @@ -1480,160 +1342,109 @@ dasd_schedule_bh(struct dasd_device * device) } /* - * Queue a request to the head of the ccw_queue. Start the I/O if - * possible. + * Queue a request to the head of the device ccw_queue. + * Start the I/O if possible. */ -void -dasd_add_request_head(struct dasd_ccw_req *req) +void dasd_add_request_head(struct dasd_ccw_req *cqr) { struct dasd_device *device; unsigned long flags; - device = req->device; + device = cqr->startdev; spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); - req->status = DASD_CQR_QUEUED; - req->device = device; - list_add(&req->list, &device->ccw_queue); + cqr->status = DASD_CQR_QUEUED; + list_add(&cqr->devlist, &device->ccw_queue); /* let the bh start the request to keep them in order */ - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); } /* - * Queue a request to the tail of the ccw_queue. Start the I/O if - * possible. + * Queue a request to the tail of the device ccw_queue. + * Start the I/O if possible. */ -void -dasd_add_request_tail(struct dasd_ccw_req *req) +void dasd_add_request_tail(struct dasd_ccw_req *cqr) { struct dasd_device *device; unsigned long flags; - device = req->device; + device = cqr->startdev; spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); - req->status = DASD_CQR_QUEUED; - req->device = device; - list_add_tail(&req->list, &device->ccw_queue); + cqr->status = DASD_CQR_QUEUED; + list_add_tail(&cqr->devlist, &device->ccw_queue); /* let the bh start the request to keep them in order */ - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); } /* - * Wakeup callback. + * Wakeup helper for the 'sleep_on' functions. */ -static void -dasd_wakeup_cb(struct dasd_ccw_req *cqr, void *data) +static void dasd_wakeup_cb(struct dasd_ccw_req *cqr, void *data) { wake_up((wait_queue_head_t *) data); } -static inline int -_wait_for_wakeup(struct dasd_ccw_req *cqr) +static inline int _wait_for_wakeup(struct dasd_ccw_req *cqr) { struct dasd_device *device; int rc; - device = cqr->device; + device = cqr->startdev; spin_lock_irq(get_ccwdev_lock(device->cdev)); rc = ((cqr->status == DASD_CQR_DONE || - cqr->status == DASD_CQR_FAILED) && - list_empty(&cqr->list)); + cqr->status == DASD_CQR_NEED_ERP || + cqr->status == DASD_CQR_TERMINATED) && + list_empty(&cqr->devlist)); spin_unlock_irq(get_ccwdev_lock(device->cdev)); return rc; } /* - * Attempts to start a special ccw queue and waits for its completion. + * Queue a request to the tail of the device ccw_queue and wait for + * it's completion. */ -int -dasd_sleep_on(struct dasd_ccw_req * cqr) +int dasd_sleep_on(struct dasd_ccw_req *cqr) { wait_queue_head_t wait_q; struct dasd_device *device; int rc; - device = cqr->device; - spin_lock_irq(get_ccwdev_lock(device->cdev)); + device = cqr->startdev; init_waitqueue_head (&wait_q); cqr->callback = dasd_wakeup_cb; cqr->callback_data = (void *) &wait_q; - cqr->status = DASD_CQR_QUEUED; - list_add_tail(&cqr->list, &device->ccw_queue); - - /* let the bh start the request to keep them in order */ - dasd_schedule_bh(device); - - spin_unlock_irq(get_ccwdev_lock(device->cdev)); - + dasd_add_request_tail(cqr); wait_event(wait_q, _wait_for_wakeup(cqr)); /* Request status is either done or failed. */ - rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0; + rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; return rc; } /* - * Attempts to start a special ccw queue and wait interruptible - * for its completion. + * Queue a request to the tail of the device ccw_queue and wait + * interruptible for it's completion. */ -int -dasd_sleep_on_interruptible(struct dasd_ccw_req * cqr) +int dasd_sleep_on_interruptible(struct dasd_ccw_req *cqr) { wait_queue_head_t wait_q; struct dasd_device *device; - int rc, finished; - - device = cqr->device; - spin_lock_irq(get_ccwdev_lock(device->cdev)); + int rc; + device = cqr->startdev; init_waitqueue_head (&wait_q); cqr->callback = dasd_wakeup_cb; cqr->callback_data = (void *) &wait_q; - cqr->status = DASD_CQR_QUEUED; - list_add_tail(&cqr->list, &device->ccw_queue); - - /* let the bh start the request to keep them in order */ - dasd_schedule_bh(device); - spin_unlock_irq(get_ccwdev_lock(device->cdev)); - - finished = 0; - while (!finished) { - rc = wait_event_interruptible(wait_q, _wait_for_wakeup(cqr)); - if (rc != -ERESTARTSYS) { - /* Request is final (done or failed) */ - rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; - break; - } - spin_lock_irq(get_ccwdev_lock(device->cdev)); - switch (cqr->status) { - case DASD_CQR_IN_IO: - /* terminate runnig cqr */ - if (device->discipline->term_IO) { - cqr->retries = -1; - device->discipline->term_IO(cqr); - /* wait (non-interruptible) for final status - * because signal ist still pending */ - spin_unlock_irq(get_ccwdev_lock(device->cdev)); - wait_event(wait_q, _wait_for_wakeup(cqr)); - spin_lock_irq(get_ccwdev_lock(device->cdev)); - rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; - finished = 1; - } - break; - case DASD_CQR_QUEUED: - /* request */ - list_del_init(&cqr->list); - rc = -EIO; - finished = 1; - break; - default: - /* cqr with 'non-interruptable' status - just wait */ - break; - } - spin_unlock_irq(get_ccwdev_lock(device->cdev)); + dasd_add_request_tail(cqr); + rc = wait_event_interruptible(wait_q, _wait_for_wakeup(cqr)); + if (rc == -ERESTARTSYS) { + dasd_cancel_req(cqr); + /* wait (non-interruptible) for final status */ + wait_event(wait_q, _wait_for_wakeup(cqr)); } + rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; return rc; } @@ -1643,25 +1454,23 @@ dasd_sleep_on_interruptible(struct dasd_ccw_req * cqr) * and be put back to status queued, before the special request is added * to the head of the queue. Then the special request is waited on normally. */ -static inline int -_dasd_term_running_cqr(struct dasd_device *device) +static inline int _dasd_term_running_cqr(struct dasd_device *device) { struct dasd_ccw_req *cqr; if (list_empty(&device->ccw_queue)) return 0; - cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, list); + cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist); return device->discipline->term_IO(cqr); } -int -dasd_sleep_on_immediatly(struct dasd_ccw_req * cqr) +int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr) { wait_queue_head_t wait_q; struct dasd_device *device; int rc; - device = cqr->device; + device = cqr->startdev; spin_lock_irq(get_ccwdev_lock(device->cdev)); rc = _dasd_term_running_cqr(device); if (rc) { @@ -1673,17 +1482,17 @@ dasd_sleep_on_immediatly(struct dasd_ccw_req * cqr) cqr->callback = dasd_wakeup_cb; cqr->callback_data = (void *) &wait_q; cqr->status = DASD_CQR_QUEUED; - list_add(&cqr->list, &device->ccw_queue); + list_add(&cqr->devlist, &device->ccw_queue); /* let the bh start the request to keep them in order */ - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); spin_unlock_irq(get_ccwdev_lock(device->cdev)); wait_event(wait_q, _wait_for_wakeup(cqr)); /* Request status is either done or failed. */ - rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0; + rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; return rc; } @@ -1692,11 +1501,14 @@ dasd_sleep_on_immediatly(struct dasd_ccw_req * cqr) * This is useful to timeout requests. The request will be * terminated if it is currently in i/o. * Returns 1 if the request has been terminated. + * 0 if there was no need to terminate the request (not started yet) + * negative error code if termination failed + * Cancellation of a request is an asynchronous operation! The calling + * function has to wait until the request is properly returned via callback. */ -int -dasd_cancel_req(struct dasd_ccw_req *cqr) +int dasd_cancel_req(struct dasd_ccw_req *cqr) { - struct dasd_device *device = cqr->device; + struct dasd_device *device = cqr->startdev; unsigned long flags; int rc; @@ -1704,74 +1516,453 @@ dasd_cancel_req(struct dasd_ccw_req *cqr) spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); switch (cqr->status) { case DASD_CQR_QUEUED: - /* request was not started - just set to failed */ - cqr->status = DASD_CQR_FAILED; + /* request was not started - just set to cleared */ + cqr->status = DASD_CQR_CLEARED; break; case DASD_CQR_IN_IO: /* request in IO - terminate IO and release again */ - if (device->discipline->term_IO(cqr) != 0) - /* what to do if unable to terminate ?????? - e.g. not _IN_IO */ - cqr->status = DASD_CQR_FAILED; - cqr->stopclk = get_clock(); - rc = 1; + rc = device->discipline->term_IO(cqr); + if (rc) { + DEV_MESSAGE(KERN_ERR, device, + "dasd_cancel_req is unable " + " to terminate request %p, rc = %d", + cqr, rc); + } else { + cqr->stopclk = get_clock(); + rc = 1; + } break; - case DASD_CQR_DONE: - case DASD_CQR_FAILED: - /* already finished - do nothing */ + default: /* already finished or clear pending - do nothing */ break; - default: - DEV_MESSAGE(KERN_ALERT, device, - "invalid status %02x in request", - cqr->status); + } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + dasd_schedule_device_bh(device); + return rc; +} + + +/* + * SECTION: Operations of the dasd_block layer. + */ + +/* + * Timeout function for dasd_block. This is used when the block layer + * is waiting for something that may not come reliably, (e.g. a state + * change interrupt) + */ +static void dasd_block_timeout(unsigned long ptr) +{ + unsigned long flags; + struct dasd_block *block; + + block = (struct dasd_block *) ptr; + spin_lock_irqsave(get_ccwdev_lock(block->base->cdev), flags); + /* re-activate request queue */ + block->base->stopped &= ~DASD_STOPPED_PENDING; + spin_unlock_irqrestore(get_ccwdev_lock(block->base->cdev), flags); + dasd_schedule_block_bh(block); +} + +/* + * Setup timeout for a dasd_block in jiffies. + */ +void dasd_block_set_timer(struct dasd_block *block, int expires) +{ + if (expires == 0) { + if (timer_pending(&block->timer)) + del_timer(&block->timer); + return; + } + if (timer_pending(&block->timer)) { + if (mod_timer(&block->timer, jiffies + expires)) + return; + } + block->timer.function = dasd_block_timeout; + block->timer.data = (unsigned long) block; + block->timer.expires = jiffies + expires; + add_timer(&block->timer); +} + +/* + * Clear timeout for a dasd_block. + */ +void dasd_block_clear_timer(struct dasd_block *block) +{ + if (timer_pending(&block->timer)) + del_timer(&block->timer); +} + +/* + * posts the buffer_cache about a finalized request + */ +static inline void dasd_end_request(struct request *req, int uptodate) +{ + if (end_that_request_first(req, uptodate, req->hard_nr_sectors)) BUG(); + add_disk_randomness(req->rq_disk); + end_that_request_last(req, uptodate); +} + +/* + * Process finished error recovery ccw. + */ +static inline void __dasd_block_process_erp(struct dasd_block *block, + struct dasd_ccw_req *cqr) +{ + dasd_erp_fn_t erp_fn; + struct dasd_device *device = block->base; + if (cqr->status == DASD_CQR_DONE) + DBF_DEV_EVENT(DBF_NOTICE, device, "%s", "ERP successful"); + else + DEV_MESSAGE(KERN_ERR, device, "%s", "ERP unsuccessful"); + erp_fn = device->discipline->erp_postaction(cqr); + erp_fn(cqr); +} + +/* + * Fetch requests from the block device queue. + */ +static void __dasd_process_request_queue(struct dasd_block *block) +{ + struct request_queue *queue; + struct request *req; + struct dasd_ccw_req *cqr; + struct dasd_device *basedev; + unsigned long flags; + queue = block->request_queue; + basedev = block->base; + /* No queue ? Then there is nothing to do. */ + if (queue == NULL) + return; + + /* + * We requeue request from the block device queue to the ccw + * queue only in two states. In state DASD_STATE_READY the + * partition detection is done and we need to requeue requests + * for that. State DASD_STATE_ONLINE is normal block device + * operation. + */ + if (basedev->state < DASD_STATE_READY) + return; + /* Now we try to fetch requests from the request queue */ + while (!blk_queue_plugged(queue) && + elv_next_request(queue)) { + + req = elv_next_request(queue); + + if (basedev->features & DASD_FEATURE_READONLY && + rq_data_dir(req) == WRITE) { + DBF_DEV_EVENT(DBF_ERR, basedev, + "Rejecting write request %p", + req); + blkdev_dequeue_request(req); + dasd_end_request(req, 0); + continue; + } + cqr = basedev->discipline->build_cp(basedev, block, req); + if (IS_ERR(cqr)) { + if (PTR_ERR(cqr) == -EBUSY) + break; /* normal end condition */ + if (PTR_ERR(cqr) == -ENOMEM) + break; /* terminate request queue loop */ + if (PTR_ERR(cqr) == -EAGAIN) { + /* + * The current request cannot be build right + * now, we have to try later. If this request + * is the head-of-queue we stop the device + * for 1/2 second. + */ + if (!list_empty(&block->ccw_queue)) + break; + spin_lock_irqsave(get_ccwdev_lock(basedev->cdev), flags); + basedev->stopped |= DASD_STOPPED_PENDING; + spin_unlock_irqrestore(get_ccwdev_lock(basedev->cdev), flags); + dasd_block_set_timer(block, HZ/2); + break; + } + DBF_DEV_EVENT(DBF_ERR, basedev, + "CCW creation failed (rc=%ld) " + "on request %p", + PTR_ERR(cqr), req); + blkdev_dequeue_request(req); + dasd_end_request(req, 0); + continue; + } + /* + * Note: callback is set to dasd_return_cqr_cb in + * __dasd_block_start_head to cover erp requests as well + */ + cqr->callback_data = (void *) req; + cqr->status = DASD_CQR_FILLED; + blkdev_dequeue_request(req); + list_add_tail(&cqr->blocklist, &block->ccw_queue); + dasd_profile_start(block, cqr, req); + } +} + +static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr) +{ + struct request *req; + int status; + + req = (struct request *) cqr->callback_data; + dasd_profile_end(cqr->block, cqr, req); + status = cqr->memdev->discipline->free_cp(cqr, req); + dasd_end_request(req, status); +} + +/* + * Process ccw request queue. + */ +static void __dasd_process_block_ccw_queue(struct dasd_block *block, + struct list_head *final_queue) +{ + struct list_head *l, *n; + struct dasd_ccw_req *cqr; + dasd_erp_fn_t erp_fn; + unsigned long flags; + struct dasd_device *base = block->base; + +restart: + /* Process request with final status. */ + list_for_each_safe(l, n, &block->ccw_queue) { + cqr = list_entry(l, struct dasd_ccw_req, blocklist); + if (cqr->status != DASD_CQR_DONE && + cqr->status != DASD_CQR_FAILED && + cqr->status != DASD_CQR_NEED_ERP && + cqr->status != DASD_CQR_TERMINATED) + continue; + + if (cqr->status == DASD_CQR_TERMINATED) { + base->discipline->handle_terminated_request(cqr); + goto restart; + } + + /* Process requests that may be recovered */ + if (cqr->status == DASD_CQR_NEED_ERP) { + if (cqr->irb.esw.esw0.erw.cons && + test_bit(DASD_CQR_FLAGS_USE_ERP, + &cqr->flags)) { + erp_fn = base->discipline->erp_action(cqr); + erp_fn(cqr); + } + goto restart; + } + + /* First of all call extended error reporting. */ + if (dasd_eer_enabled(base) && + cqr->status == DASD_CQR_FAILED) { + dasd_eer_write(base, cqr, DASD_EER_FATALERROR); + + /* restart request */ + cqr->status = DASD_CQR_FILLED; + cqr->retries = 255; + spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); + base->stopped |= DASD_STOPPED_QUIESCE; + spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), + flags); + goto restart; + } + + /* Process finished ERP request. */ + if (cqr->refers) { + __dasd_block_process_erp(block, cqr); + goto restart; + } + + /* Rechain finished requests to final queue */ + cqr->endclk = get_clock(); + list_move_tail(&cqr->blocklist, final_queue); + } +} + +static void dasd_return_cqr_cb(struct dasd_ccw_req *cqr, void *data) +{ + dasd_schedule_block_bh(cqr->block); +} + +static void __dasd_block_start_head(struct dasd_block *block) +{ + struct dasd_ccw_req *cqr; + + if (list_empty(&block->ccw_queue)) + return; + /* We allways begin with the first requests on the queue, as some + * of previously started requests have to be enqueued on a + * dasd_device again for error recovery. + */ + list_for_each_entry(cqr, &block->ccw_queue, blocklist) { + if (cqr->status != DASD_CQR_FILLED) + continue; + /* Non-temporary stop condition will trigger fail fast */ + if (block->base->stopped & ~DASD_STOPPED_PENDING && + test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) && + (!dasd_eer_enabled(block->base))) { + cqr->status = DASD_CQR_FAILED; + dasd_schedule_block_bh(block); + continue; + } + /* Don't try to start requests if device is stopped */ + if (block->base->stopped) + return; + + /* just a fail safe check, should not happen */ + if (!cqr->startdev) + cqr->startdev = block->base; + + /* make sure that the requests we submit find their way back */ + cqr->callback = dasd_return_cqr_cb; + + dasd_add_request_tail(cqr); + } +} + +/* + * Central dasd_block layer routine. Takes requests from the generic + * block layer request queue, creates ccw requests, enqueues them on + * a dasd_device and processes ccw requests that have been returned. + */ +static void dasd_block_tasklet(struct dasd_block *block) +{ + struct list_head final_queue; + struct list_head *l, *n; + struct dasd_ccw_req *cqr; + + atomic_set(&block->tasklet_scheduled, 0); + INIT_LIST_HEAD(&final_queue); + spin_lock(&block->queue_lock); + /* Finish off requests on ccw queue */ + __dasd_process_block_ccw_queue(block, &final_queue); + spin_unlock(&block->queue_lock); + /* Now call the callback function of requests with final status */ + spin_lock_irq(&block->request_queue_lock); + list_for_each_safe(l, n, &final_queue) { + cqr = list_entry(l, struct dasd_ccw_req, blocklist); + list_del_init(&cqr->blocklist); + __dasd_cleanup_cqr(cqr); + } + spin_lock(&block->queue_lock); + /* Get new request from the block device request queue */ + __dasd_process_request_queue(block); + /* Now check if the head of the ccw queue needs to be started. */ + __dasd_block_start_head(block); + spin_unlock(&block->queue_lock); + spin_unlock_irq(&block->request_queue_lock); + dasd_put_device(block->base); +} + +static void _dasd_wake_block_flush_cb(struct dasd_ccw_req *cqr, void *data) +{ + wake_up(&dasd_flush_wq); +} + +/* + * Go through all request on the dasd_block request queue, cancel them + * on the respective dasd_device, and return them to the generic + * block layer. + */ +static int dasd_flush_block_queue(struct dasd_block *block) +{ + struct dasd_ccw_req *cqr, *n; + int rc, i; + struct list_head flush_queue; + + INIT_LIST_HEAD(&flush_queue); + spin_lock_bh(&block->queue_lock); + rc = 0; +restart: + list_for_each_entry_safe(cqr, n, &block->ccw_queue, blocklist) { + /* if this request currently owned by a dasd_device cancel it */ + if (cqr->status >= DASD_CQR_QUEUED) + rc = dasd_cancel_req(cqr); + if (rc < 0) + break; + /* Rechain request (including erp chain) so it won't be + * touched by the dasd_block_tasklet anymore. + * Replace the callback so we notice when the request + * is returned from the dasd_device layer. + */ + cqr->callback = _dasd_wake_block_flush_cb; + for (i = 0; cqr != NULL; cqr = cqr->refers, i++) + list_move_tail(&cqr->blocklist, &flush_queue); + if (i > 1) + /* moved more than one request - need to restart */ + goto restart; + } + spin_unlock_bh(&block->queue_lock); + /* Now call the callback function of flushed requests */ +restart_cb: + list_for_each_entry_safe(cqr, n, &flush_queue, blocklist) { + wait_event(dasd_flush_wq, (cqr->status < DASD_CQR_QUEUED)); + /* Process finished ERP request. */ + if (cqr->refers) { + __dasd_block_process_erp(block, cqr); + /* restart list_for_xx loop since dasd_process_erp + * might remove multiple elements */ + goto restart_cb; + } + /* call the callback function */ + cqr->endclk = get_clock(); + list_del_init(&cqr->blocklist); + __dasd_cleanup_cqr(cqr); } - spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); - dasd_schedule_bh(device); return rc; } /* - * SECTION: Block device operations (request queue, partitions, open, release). + * Schedules a call to dasd_tasklet over the device tasklet. + */ +void dasd_schedule_block_bh(struct dasd_block *block) +{ + /* Protect against rescheduling. */ + if (atomic_cmpxchg(&block->tasklet_scheduled, 0, 1) != 0) + return; + /* life cycle of block is bound to it's base device */ + dasd_get_device(block->base); + tasklet_hi_schedule(&block->tasklet); +} + + +/* + * SECTION: external block device operations + * (request queue handling, open, release, etc.) */ /* * Dasd request queue function. Called from ll_rw_blk.c */ -static void -do_dasd_request(struct request_queue * queue) +static void do_dasd_request(struct request_queue *queue) { - struct dasd_device *device; + struct dasd_block *block; - device = (struct dasd_device *) queue->queuedata; - spin_lock(get_ccwdev_lock(device->cdev)); + block = queue->queuedata; + spin_lock(&block->queue_lock); /* Get new request from the block device request queue */ - __dasd_process_blk_queue(device); + __dasd_process_request_queue(block); /* Now check if the head of the ccw queue needs to be started. */ - __dasd_start_head(device); - spin_unlock(get_ccwdev_lock(device->cdev)); + __dasd_block_start_head(block); + spin_unlock(&block->queue_lock); } /* * Allocate and initialize request queue and default I/O scheduler. */ -static int -dasd_alloc_queue(struct dasd_device * device) +static int dasd_alloc_queue(struct dasd_block *block) { int rc; - device->request_queue = blk_init_queue(do_dasd_request, - &device->request_queue_lock); - if (device->request_queue == NULL) + block->request_queue = blk_init_queue(do_dasd_request, + &block->request_queue_lock); + if (block->request_queue == NULL) return -ENOMEM; - device->request_queue->queuedata = device; + block->request_queue->queuedata = block; - elevator_exit(device->request_queue->elevator); - rc = elevator_init(device->request_queue, "deadline"); + elevator_exit(block->request_queue->elevator); + rc = elevator_init(block->request_queue, "deadline"); if (rc) { - blk_cleanup_queue(device->request_queue); + blk_cleanup_queue(block->request_queue); return rc; } return 0; @@ -1780,79 +1971,76 @@ dasd_alloc_queue(struct dasd_device * device) /* * Allocate and initialize request queue. */ -static void -dasd_setup_queue(struct dasd_device * device) +static void dasd_setup_queue(struct dasd_block *block) { int max; - blk_queue_hardsect_size(device->request_queue, device->bp_block); - max = device->discipline->max_blocks << device->s2b_shift; - blk_queue_max_sectors(device->request_queue, max); - blk_queue_max_phys_segments(device->request_queue, -1L); - blk_queue_max_hw_segments(device->request_queue, -1L); - blk_queue_max_segment_size(device->request_queue, -1L); - blk_queue_segment_boundary(device->request_queue, -1L); - blk_queue_ordered(device->request_queue, QUEUE_ORDERED_TAG, NULL); + blk_queue_hardsect_size(block->request_queue, block->bp_block); + max = block->base->discipline->max_blocks << block->s2b_shift; + blk_queue_max_sectors(block->request_queue, max); + blk_queue_max_phys_segments(block->request_queue, -1L); + blk_queue_max_hw_segments(block->request_queue, -1L); + blk_queue_max_segment_size(block->request_queue, -1L); + blk_queue_segment_boundary(block->request_queue, -1L); + blk_queue_ordered(block->request_queue, QUEUE_ORDERED_DRAIN, NULL); } /* * Deactivate and free request queue. */ -static void -dasd_free_queue(struct dasd_device * device) +static void dasd_free_queue(struct dasd_block *block) { - if (device->request_queue) { - blk_cleanup_queue(device->request_queue); - device->request_queue = NULL; + if (block->request_queue) { + blk_cleanup_queue(block->request_queue); + block->request_queue = NULL; } } /* * Flush request on the request queue. */ -static void -dasd_flush_request_queue(struct dasd_device * device) +static void dasd_flush_request_queue(struct dasd_block *block) { struct request *req; - if (!device->request_queue) + if (!block->request_queue) return; - spin_lock_irq(&device->request_queue_lock); - while ((req = elv_next_request(device->request_queue))) { + spin_lock_irq(&block->request_queue_lock); + while ((req = elv_next_request(block->request_queue))) { blkdev_dequeue_request(req); dasd_end_request(req, 0); } - spin_unlock_irq(&device->request_queue_lock); + spin_unlock_irq(&block->request_queue_lock); } -static int -dasd_open(struct inode *inp, struct file *filp) +static int dasd_open(struct inode *inp, struct file *filp) { struct gendisk *disk = inp->i_bdev->bd_disk; - struct dasd_device *device = disk->private_data; + struct dasd_block *block = disk->private_data; + struct dasd_device *base = block->base; int rc; - atomic_inc(&device->open_count); - if (test_bit(DASD_FLAG_OFFLINE, &device->flags)) { + atomic_inc(&block->open_count); + if (test_bit(DASD_FLAG_OFFLINE, &base->flags)) { rc = -ENODEV; goto unlock; } - if (!try_module_get(device->discipline->owner)) { + if (!try_module_get(base->discipline->owner)) { rc = -EINVAL; goto unlock; } if (dasd_probeonly) { - DEV_MESSAGE(KERN_INFO, device, "%s", + DEV_MESSAGE(KERN_INFO, base, "%s", "No access to device due to probeonly mode"); rc = -EPERM; goto out; } - if (device->state <= DASD_STATE_BASIC) { - DBF_DEV_EVENT(DBF_ERR, device, " %s", + if (base->state <= DASD_STATE_BASIC) { + DBF_DEV_EVENT(DBF_ERR, base, " %s", " Cannot open unrecognized device"); rc = -ENODEV; goto out; @@ -1861,41 +2049,41 @@ dasd_open(struct inode *inp, struct file *filp) return 0; out: - module_put(device->discipline->owner); + module_put(base->discipline->owner); unlock: - atomic_dec(&device->open_count); + atomic_dec(&block->open_count); return rc; } -static int -dasd_release(struct inode *inp, struct file *filp) +static int dasd_release(struct inode *inp, struct file *filp) { struct gendisk *disk = inp->i_bdev->bd_disk; - struct dasd_device *device = disk->private_data; + struct dasd_block *block = disk->private_data; - atomic_dec(&device->open_count); - module_put(device->discipline->owner); + atomic_dec(&block->open_count); + module_put(block->base->discipline->owner); return 0; } /* * Return disk geometry. */ -static int -dasd_getgeo(struct block_device *bdev, struct hd_geometry *geo) +static int dasd_getgeo(struct block_device *bdev, struct hd_geometry *geo) { - struct dasd_device *device; + struct dasd_block *block; + struct dasd_device *base; - device = bdev->bd_disk->private_data; - if (!device) + block = bdev->bd_disk->private_data; + base = block->base; + if (!block) return -ENODEV; - if (!device->discipline || - !device->discipline->fill_geometry) + if (!base->discipline || + !base->discipline->fill_geometry) return -EINVAL; - device->discipline->fill_geometry(device, geo); - geo->start = get_start_sect(bdev) >> device->s2b_shift; + base->discipline->fill_geometry(block, geo); + geo->start = get_start_sect(bdev) >> block->s2b_shift; return 0; } @@ -1909,6 +2097,9 @@ dasd_device_operations = { .getgeo = dasd_getgeo, }; +/******************************************************************************* + * end of block device operations + */ static void dasd_exit(void) @@ -1937,9 +2128,8 @@ dasd_exit(void) * Initial attempt at a probe function. this can be simplified once * the other detection code is gone. */ -int -dasd_generic_probe (struct ccw_device *cdev, - struct dasd_discipline *discipline) +int dasd_generic_probe(struct ccw_device *cdev, + struct dasd_discipline *discipline) { int ret; @@ -1969,19 +2159,20 @@ dasd_generic_probe (struct ccw_device *cdev, ret = ccw_device_set_online(cdev); if (ret) printk(KERN_WARNING - "dasd_generic_probe: could not initially online " - "ccw-device %s\n", cdev->dev.bus_id); - return ret; + "dasd_generic_probe: could not initially " + "online ccw-device %s; return code: %d\n", + cdev->dev.bus_id, ret); + return 0; } /* * This will one day be called from a global not_oper handler. * It is also used by driver_unregister during module unload. */ -void -dasd_generic_remove (struct ccw_device *cdev) +void dasd_generic_remove(struct ccw_device *cdev) { struct dasd_device *device; + struct dasd_block *block; cdev->handler = NULL; @@ -2001,7 +2192,15 @@ dasd_generic_remove (struct ccw_device *cdev) */ dasd_set_target_state(device, DASD_STATE_NEW); /* dasd_delete_device destroys the device reference. */ + block = device->block; + device->block = NULL; dasd_delete_device(device); + /* + * life cycle of block is bound to device, so delete it after + * device was safely removed + */ + if (block) + dasd_free_block(block); } /* @@ -2009,10 +2208,8 @@ dasd_generic_remove (struct ccw_device *cdev) * the device is detected for the first time and is supposed to be used * or the user has started activation through sysfs. */ -int -dasd_generic_set_online (struct ccw_device *cdev, - struct dasd_discipline *base_discipline) - +int dasd_generic_set_online(struct ccw_device *cdev, + struct dasd_discipline *base_discipline) { struct dasd_discipline *discipline; struct dasd_device *device; @@ -2048,6 +2245,7 @@ dasd_generic_set_online (struct ccw_device *cdev, device->base_discipline = base_discipline; device->discipline = discipline; + /* check_device will allocate block device if necessary */ rc = discipline->check_device(device); if (rc) { printk (KERN_WARNING @@ -2067,6 +2265,8 @@ dasd_generic_set_online (struct ccw_device *cdev, cdev->dev.bus_id); rc = -ENODEV; dasd_set_target_state(device, DASD_STATE_NEW); + if (device->block) + dasd_free_block(device->block); dasd_delete_device(device); } else pr_debug("dasd_generic device %s found\n", @@ -2081,10 +2281,10 @@ dasd_generic_set_online (struct ccw_device *cdev, return rc; } -int -dasd_generic_set_offline (struct ccw_device *cdev) +int dasd_generic_set_offline(struct ccw_device *cdev) { struct dasd_device *device; + struct dasd_block *block; int max_count, open_count; device = dasd_device_from_cdev(cdev); @@ -2101,30 +2301,39 @@ dasd_generic_set_offline (struct ccw_device *cdev) * the blkdev_get in dasd_scan_partitions. We are only interested * in the other openers. */ - max_count = device->bdev ? 0 : -1; - open_count = (int) atomic_read(&device->open_count); - if (open_count > max_count) { - if (open_count > 0) - printk (KERN_WARNING "Can't offline dasd device with " - "open count = %i.\n", - open_count); - else - printk (KERN_WARNING "%s", - "Can't offline dasd device due to internal " - "use\n"); - clear_bit(DASD_FLAG_OFFLINE, &device->flags); - dasd_put_device(device); - return -EBUSY; + if (device->block) { + struct dasd_block *block = device->block; + max_count = block->bdev ? 0 : -1; + open_count = (int) atomic_read(&block->open_count); + if (open_count > max_count) { + if (open_count > 0) + printk(KERN_WARNING "Can't offline dasd " + "device with open count = %i.\n", + open_count); + else + printk(KERN_WARNING "%s", + "Can't offline dasd device due " + "to internal use\n"); + clear_bit(DASD_FLAG_OFFLINE, &device->flags); + dasd_put_device(device); + return -EBUSY; + } } dasd_set_target_state(device, DASD_STATE_NEW); /* dasd_delete_device destroys the device reference. */ + block = device->block; + device->block = NULL; dasd_delete_device(device); - + /* + * life cycle of block is bound to device, so delete it after + * device was safely removed + */ + if (block) + dasd_free_block(block); return 0; } -int -dasd_generic_notify(struct ccw_device *cdev, int event) +int dasd_generic_notify(struct ccw_device *cdev, int event) { struct dasd_device *device; struct dasd_ccw_req *cqr; @@ -2145,27 +2354,22 @@ dasd_generic_notify(struct ccw_device *cdev, int event) if (device->state < DASD_STATE_BASIC) break; /* Device is active. We want to keep it. */ - if (test_bit(DASD_FLAG_DSC_ERROR, &device->flags)) { - list_for_each_entry(cqr, &device->ccw_queue, list) - if (cqr->status == DASD_CQR_IN_IO) - cqr->status = DASD_CQR_FAILED; - device->stopped |= DASD_STOPPED_DC_EIO; - } else { - list_for_each_entry(cqr, &device->ccw_queue, list) - if (cqr->status == DASD_CQR_IN_IO) { - cqr->status = DASD_CQR_QUEUED; - cqr->retries++; - } - device->stopped |= DASD_STOPPED_DC_WAIT; - dasd_set_timer(device, 0); - } - dasd_schedule_bh(device); + list_for_each_entry(cqr, &device->ccw_queue, devlist) + if (cqr->status == DASD_CQR_IN_IO) { + cqr->status = DASD_CQR_QUEUED; + cqr->retries++; + } + device->stopped |= DASD_STOPPED_DC_WAIT; + dasd_device_clear_timer(device); + dasd_schedule_device_bh(device); ret = 1; break; case CIO_OPER: /* FIXME: add a sanity check. */ - device->stopped &= ~(DASD_STOPPED_DC_WAIT|DASD_STOPPED_DC_EIO); - dasd_schedule_bh(device); + device->stopped &= ~DASD_STOPPED_DC_WAIT; + dasd_schedule_device_bh(device); + if (device->block) + dasd_schedule_block_bh(device->block); ret = 1; break; } @@ -2195,7 +2399,8 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device, ccw->cda = (__u32)(addr_t)rdc_buffer; ccw->count = rdc_buffer_size; - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; cqr->expires = 10*HZ; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); cqr->retries = 2; @@ -2217,13 +2422,12 @@ int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic, return PTR_ERR(cqr); ret = dasd_sleep_on(cqr); - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return ret; } EXPORT_SYMBOL_GPL(dasd_generic_read_dev_chars); -static int __init -dasd_init(void) +static int __init dasd_init(void) { int rc; @@ -2231,7 +2435,7 @@ dasd_init(void) init_waitqueue_head(&dasd_flush_wq); /* register 'common' DASD debug area, used for all DBF_XXX calls */ - dasd_debug_area = debug_register("dasd", 1, 2, 8 * sizeof (long)); + dasd_debug_area = debug_register("dasd", 1, 1, 8 * sizeof(long)); if (dasd_debug_area == NULL) { rc = -ENOMEM; goto failed; @@ -2277,15 +2481,18 @@ EXPORT_SYMBOL(dasd_diag_discipline_pointer); EXPORT_SYMBOL(dasd_add_request_head); EXPORT_SYMBOL(dasd_add_request_tail); EXPORT_SYMBOL(dasd_cancel_req); -EXPORT_SYMBOL(dasd_clear_timer); +EXPORT_SYMBOL(dasd_device_clear_timer); +EXPORT_SYMBOL(dasd_block_clear_timer); EXPORT_SYMBOL(dasd_enable_device); EXPORT_SYMBOL(dasd_int_handler); EXPORT_SYMBOL(dasd_kfree_request); EXPORT_SYMBOL(dasd_kick_device); EXPORT_SYMBOL(dasd_kmalloc_request); -EXPORT_SYMBOL(dasd_schedule_bh); +EXPORT_SYMBOL(dasd_schedule_device_bh); +EXPORT_SYMBOL(dasd_schedule_block_bh); EXPORT_SYMBOL(dasd_set_target_state); -EXPORT_SYMBOL(dasd_set_timer); +EXPORT_SYMBOL(dasd_device_set_timer); +EXPORT_SYMBOL(dasd_block_set_timer); EXPORT_SYMBOL(dasd_sfree_request); EXPORT_SYMBOL(dasd_sleep_on); EXPORT_SYMBOL(dasd_sleep_on_immediatly); @@ -2299,4 +2506,7 @@ EXPORT_SYMBOL_GPL(dasd_generic_remove); EXPORT_SYMBOL_GPL(dasd_generic_notify); EXPORT_SYMBOL_GPL(dasd_generic_set_online); EXPORT_SYMBOL_GPL(dasd_generic_set_offline); - +EXPORT_SYMBOL_GPL(dasd_generic_handle_state_change); +EXPORT_SYMBOL_GPL(dasd_flush_device_queue); +EXPORT_SYMBOL_GPL(dasd_alloc_block); +EXPORT_SYMBOL_GPL(dasd_free_block); diff --git a/drivers/s390/block/dasd_3370_erp.c b/drivers/s390/block/dasd_3370_erp.c deleted file mode 100644 index 1ddab8991d9..00000000000 --- a/drivers/s390/block/dasd_3370_erp.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * File...........: linux/drivers/s390/block/dasd_3370_erp.c - * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Bugreports.to..: <Linux390@de.ibm.com> - * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000 - * - */ - -#define PRINTK_HEADER "dasd_erp(3370)" - -#include "dasd_int.h" - - -/* - * DASD_3370_ERP_EXAMINE - * - * DESCRIPTION - * Checks only for fatal/no/recover error. - * A detailed examination of the sense data is done later outside - * the interrupt handler. - * - * The logic is based on the 'IBM 3880 Storage Control Reference' manual - * 'Chapter 7. 3370 Sense Data'. - * - * RETURN VALUES - * dasd_era_none no error - * dasd_era_fatal for all fatal (unrecoverable errors) - * dasd_era_recover for all others. - */ -dasd_era_t -dasd_3370_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) -{ - char *sense = irb->ecw; - - /* check for successful execution first */ - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - if (sense[0] & 0x80) { /* CMD reject */ - return dasd_era_fatal; - } - if (sense[0] & 0x40) { /* Drive offline */ - return dasd_era_recover; - } - if (sense[0] & 0x20) { /* Bus out parity */ - return dasd_era_recover; - } - if (sense[0] & 0x10) { /* equipment check */ - if (sense[1] & 0x80) { - return dasd_era_fatal; - } - return dasd_era_recover; - } - if (sense[0] & 0x08) { /* data check */ - if (sense[1] & 0x80) { - return dasd_era_fatal; - } - return dasd_era_recover; - } - if (sense[0] & 0x04) { /* overrun */ - if (sense[1] & 0x80) { - return dasd_era_fatal; - } - return dasd_era_recover; - } - if (sense[1] & 0x40) { /* invalid blocksize */ - return dasd_era_fatal; - } - if (sense[1] & 0x04) { /* file protected */ - return dasd_era_recover; - } - if (sense[1] & 0x01) { /* operation incomplete */ - return dasd_era_recover; - } - if (sense[2] & 0x80) { /* check data erroor */ - return dasd_era_recover; - } - if (sense[2] & 0x10) { /* Env. data present */ - return dasd_era_recover; - } - /* examine the 24 byte sense data */ - return dasd_era_recover; - -} /* END dasd_3370_erp_examine */ diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index 5b7385e430e..c361ab69ec0 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -26,158 +26,6 @@ struct DCTL_data { /* ***************************************************************************** - * SECTION ERP EXAMINATION - ***************************************************************************** - */ - -/* - * DASD_3990_ERP_EXAMINE_24 - * - * DESCRIPTION - * Checks only for fatal (unrecoverable) error. - * A detailed examination of the sense data is done later outside - * the interrupt handler. - * - * Each bit configuration leading to an action code 2 (Exit with - * programming error or unusual condition indication) - * are handled as fatal errors. - * - * All other configurations are handled as recoverable errors. - * - * RETURN VALUES - * dasd_era_fatal for all fatal (unrecoverable errors) - * dasd_era_recover for all others. - */ -static dasd_era_t -dasd_3990_erp_examine_24(struct dasd_ccw_req * cqr, char *sense) -{ - - struct dasd_device *device = cqr->device; - - /* check for 'Command Reject' */ - if ((sense[0] & SNS0_CMD_REJECT) && - (!(sense[2] & SNS2_ENV_DATA_PRESENT))) { - - DEV_MESSAGE(KERN_ERR, device, "%s", - "EXAMINE 24: Command Reject detected - " - "fatal error"); - - return dasd_era_fatal; - } - - /* check for 'Invalid Track Format' */ - if ((sense[1] & SNS1_INV_TRACK_FORMAT) && - (!(sense[2] & SNS2_ENV_DATA_PRESENT))) { - - DEV_MESSAGE(KERN_ERR, device, "%s", - "EXAMINE 24: Invalid Track Format detected " - "- fatal error"); - - return dasd_era_fatal; - } - - /* check for 'No Record Found' */ - if (sense[1] & SNS1_NO_REC_FOUND) { - - /* FIXME: fatal error ?!? */ - DEV_MESSAGE(KERN_ERR, device, - "EXAMINE 24: No Record Found detected %s", - device->state <= DASD_STATE_BASIC ? - " " : "- fatal error"); - - return dasd_era_fatal; - } - - /* return recoverable for all others */ - return dasd_era_recover; -} /* END dasd_3990_erp_examine_24 */ - -/* - * DASD_3990_ERP_EXAMINE_32 - * - * DESCRIPTION - * Checks only for fatal/no/recoverable error. - * A detailed examination of the sense data is done later outside - * the interrupt handler. - * - * RETURN VALUES - * dasd_era_none no error - * dasd_era_fatal for all fatal (unrecoverable errors) - * dasd_era_recover for recoverable others. - */ -static dasd_era_t -dasd_3990_erp_examine_32(struct dasd_ccw_req * cqr, char *sense) -{ - - struct dasd_device *device = cqr->device; - - switch (sense[25]) { - case 0x00: - return dasd_era_none; - - case 0x01: - DEV_MESSAGE(KERN_ERR, device, "%s", "EXAMINE 32: fatal error"); - - return dasd_era_fatal; - - default: - - return dasd_era_recover; - } - -} /* end dasd_3990_erp_examine_32 */ - -/* - * DASD_3990_ERP_EXAMINE - * - * DESCRIPTION - * Checks only for fatal/no/recover error. - * A detailed examination of the sense data is done later outside - * the interrupt handler. - * - * The logic is based on the 'IBM 3990 Storage Control Reference' manual - * 'Chapter 7. Error Recovery Procedures'. - * - * RETURN VALUES - * dasd_era_none no error - * dasd_era_fatal for all fatal (unrecoverable errors) - * dasd_era_recover for all others. - */ -dasd_era_t -dasd_3990_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) -{ - - char *sense = irb->ecw; - dasd_era_t era = dasd_era_recover; - struct dasd_device *device = cqr->device; - - /* check for successful execution first */ - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - - /* distinguish between 24 and 32 byte sense data */ - if (sense[27] & DASD_SENSE_BIT_0) { - - era = dasd_3990_erp_examine_24(cqr, sense); - - } else { - - era = dasd_3990_erp_examine_32(cqr, sense); - - } - - /* log the erp chain if fatal error occurred */ - if ((era == dasd_era_fatal) && (device->state >= DASD_STATE_READY)) { - dasd_log_sense(cqr, irb); - } - - return era; - -} /* END dasd_3990_erp_examine */ - -/* - ***************************************************************************** * SECTION ERP HANDLING ***************************************************************************** */ @@ -206,7 +54,7 @@ dasd_3990_erp_cleanup(struct dasd_ccw_req * erp, char final_status) { struct dasd_ccw_req *cqr = erp->refers; - dasd_free_erp_request(erp, erp->device); + dasd_free_erp_request(erp, erp->memdev); cqr->status = final_status; return cqr; @@ -224,15 +72,17 @@ static void dasd_3990_erp_block_queue(struct dasd_ccw_req * erp, int expires) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; + unsigned long flags; DEV_MESSAGE(KERN_INFO, device, "blocking request queue for %is", expires/HZ); + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); device->stopped |= DASD_STOPPED_PENDING; - erp->status = DASD_CQR_QUEUED; - - dasd_set_timer(device, expires); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + erp->status = DASD_CQR_FILLED; + dasd_block_set_timer(device->block, expires); } /* @@ -251,7 +101,7 @@ static struct dasd_ccw_req * dasd_3990_erp_int_req(struct dasd_ccw_req * erp) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; /* first time set initial retry counter and erp_function */ /* and retry once without blocking queue */ @@ -292,11 +142,14 @@ dasd_3990_erp_int_req(struct dasd_ccw_req * erp) static void dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; __u8 opm; + unsigned long flags; /* try alternate valid path */ + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); opm = ccw_device_get_path_mask(device->cdev); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); //FIXME: start with get_opm ? if (erp->lpm == 0) erp->lpm = LPM_ANYPATH & ~(erp->irb.esw.esw0.sublog.lpum); @@ -309,9 +162,8 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) "try alternate lpm=%x (lpum=%x / opm=%x)", erp->lpm, erp->irb.esw.esw0.sublog.lpum, opm); - /* reset status to queued to handle the request again... */ - if (erp->status > DASD_CQR_QUEUED) - erp->status = DASD_CQR_QUEUED; + /* reset status to submit the request again... */ + erp->status = DASD_CQR_FILLED; erp->retries = 1; } else { DEV_MESSAGE(KERN_ERR, device, @@ -320,8 +172,7 @@ dasd_3990_erp_alternate_path(struct dasd_ccw_req * erp) erp->irb.esw.esw0.sublog.lpum, opm); /* post request with permanent error */ - if (erp->status > DASD_CQR_QUEUED) - erp->status = DASD_CQR_FAILED; + erp->status = DASD_CQR_FAILED; } } /* end dasd_3990_erp_alternate_path */ @@ -344,14 +195,14 @@ static struct dasd_ccw_req * dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; struct DCTL_data *DCTL_data; struct ccw1 *ccw; struct dasd_ccw_req *dctl_cqr; dctl_cqr = dasd_alloc_erp_request((char *) &erp->magic, 1, - sizeof (struct DCTL_data), - erp->device); + sizeof(struct DCTL_data), + device); if (IS_ERR(dctl_cqr)) { DEV_MESSAGE(KERN_ERR, device, "%s", "Unable to allocate DCTL-CQR"); @@ -365,13 +216,14 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier) DCTL_data->modifier = modifier; ccw = dctl_cqr->cpaddr; - memset(ccw, 0, sizeof (struct ccw1)); + memset(ccw, 0, sizeof(struct ccw1)); ccw->cmd_code = CCW_CMD_DCTL; ccw->count = 4; ccw->cda = (__u32)(addr_t) DCTL_data; dctl_cqr->function = dasd_3990_erp_DCTL; dctl_cqr->refers = erp; - dctl_cqr->device = erp->device; + dctl_cqr->startdev = device; + dctl_cqr->memdev = device; dctl_cqr->magic = erp->magic; dctl_cqr->expires = 5 * 60 * HZ; dctl_cqr->retries = 2; @@ -435,7 +287,7 @@ static struct dasd_ccw_req * dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; /* first time set initial retry counter and erp_function */ /* and retry once without waiting for state change pending */ @@ -472,7 +324,7 @@ dasd_3990_erp_action_4(struct dasd_ccw_req * erp, char *sense) "redriving request immediately, " "%d retries left", erp->retries); - erp->status = DASD_CQR_QUEUED; + erp->status = DASD_CQR_FILLED; } } @@ -530,7 +382,7 @@ static void dasd_3990_handle_env_data(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; char msg_format = (sense[7] & 0xF0); char msg_no = (sense[7] & 0x0F); @@ -1157,7 +1009,7 @@ static struct dasd_ccw_req * dasd_3990_erp_com_rej(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_com_rej; @@ -1198,7 +1050,7 @@ static struct dasd_ccw_req * dasd_3990_erp_bus_out(struct dasd_ccw_req * erp) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; /* first time set initial retry counter and erp_function */ /* and retry once without blocking queue */ @@ -1237,7 +1089,7 @@ static struct dasd_ccw_req * dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_equip_check; @@ -1279,7 +1131,6 @@ dasd_3990_erp_equip_check(struct dasd_ccw_req * erp, char *sense) erp = dasd_3990_erp_action_5(erp); } - return erp; } /* end dasd_3990_erp_equip_check */ @@ -1299,7 +1150,7 @@ static struct dasd_ccw_req * dasd_3990_erp_data_check(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_data_check; @@ -1358,7 +1209,7 @@ static struct dasd_ccw_req * dasd_3990_erp_overrun(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_overrun; @@ -1387,7 +1238,7 @@ static struct dasd_ccw_req * dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_inv_format; @@ -1403,8 +1254,7 @@ dasd_3990_erp_inv_format(struct dasd_ccw_req * erp, char *sense) } else { DEV_MESSAGE(KERN_ERR, device, "%s", - "Invalid Track Format - Fatal error should have " - "been handled within the interrupt handler"); + "Invalid Track Format - Fatal error"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); } @@ -1428,7 +1278,7 @@ static struct dasd_ccw_req * dasd_3990_erp_EOC(struct dasd_ccw_req * default_erp, char *sense) { - struct dasd_device *device = default_erp->device; + struct dasd_device *device = default_erp->startdev; DEV_MESSAGE(KERN_ERR, device, "%s", "End-of-Cylinder - must never happen"); @@ -1453,7 +1303,7 @@ static struct dasd_ccw_req * dasd_3990_erp_env_data(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_env_data; @@ -1463,11 +1313,9 @@ dasd_3990_erp_env_data(struct dasd_ccw_req * erp, char *sense) /* don't retry on disabled interface */ if (sense[7] != 0x0F) { - erp = dasd_3990_erp_action_4(erp, sense); } else { - - erp = dasd_3990_erp_cleanup(erp, DASD_CQR_IN_IO); + erp->status = DASD_CQR_FILLED; } return erp; @@ -1490,11 +1338,10 @@ static struct dasd_ccw_req * dasd_3990_erp_no_rec(struct dasd_ccw_req * default_erp, char *sense) { - struct dasd_device *device = default_erp->device; + struct dasd_device *device = default_erp->startdev; DEV_MESSAGE(KERN_ERR, device, "%s", - "No Record Found - Fatal error should " - "have been handled within the interrupt handler"); + "No Record Found - Fatal error "); return dasd_3990_erp_cleanup(default_erp, DASD_CQR_FAILED); @@ -1517,7 +1364,7 @@ static struct dasd_ccw_req * dasd_3990_erp_file_prot(struct dasd_ccw_req * erp) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; DEV_MESSAGE(KERN_ERR, device, "%s", "File Protected"); @@ -1526,6 +1373,43 @@ dasd_3990_erp_file_prot(struct dasd_ccw_req * erp) } /* end dasd_3990_erp_file_prot */ /* + * DASD_3990_ERP_INSPECT_ALIAS + * + * DESCRIPTION + * Checks if the original request was started on an alias device. + * If yes, it modifies the original and the erp request so that + * the erp request can be started on a base device. + * + * PARAMETER + * erp pointer to the currently created default ERP + * + * RETURN VALUES + * erp pointer to the modified ERP, or NULL + */ + +static struct dasd_ccw_req *dasd_3990_erp_inspect_alias( + struct dasd_ccw_req *erp) +{ + struct dasd_ccw_req *cqr = erp->refers; + + if (cqr->block && + (cqr->block->base != cqr->startdev)) { + if (cqr->startdev->features & DASD_FEATURE_ERPLOG) { + DEV_MESSAGE(KERN_ERR, cqr->startdev, + "ERP on alias device for request %p," + " recover on base device %s", cqr, + cqr->block->base->cdev->dev.bus_id); + } + dasd_eckd_reset_ccw_to_base_io(cqr); + erp->startdev = cqr->block->base; + erp->function = dasd_3990_erp_inspect_alias; + return erp; + } else + return NULL; +} + + +/* * DASD_3990_ERP_INSPECT_24 * * DESCRIPTION @@ -1623,7 +1507,7 @@ static struct dasd_ccw_req * dasd_3990_erp_action_10_32(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->retries = 256; erp->function = dasd_3990_erp_action_10_32; @@ -1657,13 +1541,14 @@ static struct dasd_ccw_req * dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) { - struct dasd_device *device = default_erp->device; + struct dasd_device *device = default_erp->startdev; __u32 cpa = 0; struct dasd_ccw_req *cqr; struct dasd_ccw_req *erp; struct DE_eckd_data *DE_data; + struct PFX_eckd_data *PFX_data; char *LO_data; /* LO_eckd_data_t */ - struct ccw1 *ccw; + struct ccw1 *ccw, *oldccw; DEV_MESSAGE(KERN_DEBUG, device, "%s", "Write not finished because of unexpected condition"); @@ -1702,8 +1587,8 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* Build new ERP request including DE/LO */ erp = dasd_alloc_erp_request((char *) &cqr->magic, 2 + 1,/* DE/LO + TIC */ - sizeof (struct DE_eckd_data) + - sizeof (struct LO_eckd_data), device); + sizeof(struct DE_eckd_data) + + sizeof(struct LO_eckd_data), device); if (IS_ERR(erp)) { DEV_MESSAGE(KERN_ERR, device, "%s", "Unable to allocate ERP"); @@ -1712,10 +1597,16 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* use original DE */ DE_data = erp->data; - memcpy(DE_data, cqr->data, sizeof (struct DE_eckd_data)); + oldccw = cqr->cpaddr; + if (oldccw->cmd_code == DASD_ECKD_CCW_PFX) { + PFX_data = cqr->data; + memcpy(DE_data, &PFX_data->define_extend, + sizeof(struct DE_eckd_data)); + } else + memcpy(DE_data, cqr->data, sizeof(struct DE_eckd_data)); /* create LO */ - LO_data = erp->data + sizeof (struct DE_eckd_data); + LO_data = erp->data + sizeof(struct DE_eckd_data); if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) { @@ -1748,7 +1639,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* create DE ccw */ ccw = erp->cpaddr; - memset(ccw, 0, sizeof (struct ccw1)); + memset(ccw, 0, sizeof(struct ccw1)); ccw->cmd_code = DASD_ECKD_CCW_DEFINE_EXTENT; ccw->flags = CCW_FLAG_CC; ccw->count = 16; @@ -1756,7 +1647,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* create LO ccw */ ccw++; - memset(ccw, 0, sizeof (struct ccw1)); + memset(ccw, 0, sizeof(struct ccw1)); ccw->cmd_code = DASD_ECKD_CCW_LOCATE_RECORD; ccw->flags = CCW_FLAG_CC; ccw->count = 16; @@ -1770,7 +1661,8 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* fill erp related fields */ erp->function = dasd_3990_erp_action_1B_32; erp->refers = default_erp->refers; - erp->device = device; + erp->startdev = device; + erp->memdev = device; erp->magic = default_erp->magic; erp->expires = 0; erp->retries = 256; @@ -1803,7 +1695,7 @@ static struct dasd_ccw_req * dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) { - struct dasd_device *device = previous_erp->device; + struct dasd_device *device = previous_erp->startdev; __u32 cpa = 0; struct dasd_ccw_req *cqr; struct dasd_ccw_req *erp; @@ -1827,7 +1719,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) DEV_MESSAGE(KERN_DEBUG, device, "%s", "Imprecise ending is set - just retry"); - previous_erp->status = DASD_CQR_QUEUED; + previous_erp->status = DASD_CQR_FILLED; return previous_erp; } @@ -1850,7 +1742,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) erp = previous_erp; /* update the LO with the new returned sense data */ - LO_data = erp->data + sizeof (struct DE_eckd_data); + LO_data = erp->data + sizeof(struct DE_eckd_data); if ((sense[3] == 0x01) && (LO_data[1] & 0x01)) { @@ -1889,7 +1781,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) ccw++; /* addr of TIC ccw */ ccw->cda = cpa; - erp->status = DASD_CQR_QUEUED; + erp->status = DASD_CQR_FILLED; return erp; @@ -1968,9 +1860,7 @@ dasd_3990_erp_compound_path(struct dasd_ccw_req * erp, char *sense) * try further actions. */ erp->lpm = 0; - - erp->status = DASD_CQR_ERROR; - + erp->status = DASD_CQR_NEED_ERP; } } @@ -2047,7 +1937,7 @@ dasd_3990_erp_compound_config(struct dasd_ccw_req * erp, char *sense) if ((sense[25] & DASD_SENSE_BIT_1) && (sense[26] & DASD_SENSE_BIT_2)) { /* set to suspended duplex state then restart */ - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; DEV_MESSAGE(KERN_ERR, device, "%s", "Set device to suspended duplex state should be " @@ -2081,28 +1971,26 @@ dasd_3990_erp_compound(struct dasd_ccw_req * erp, char *sense) { if ((erp->function == dasd_3990_erp_compound_retry) && - (erp->status == DASD_CQR_ERROR)) { + (erp->status == DASD_CQR_NEED_ERP)) { dasd_3990_erp_compound_path(erp, sense); } if ((erp->function == dasd_3990_erp_compound_path) && - (erp->status == DASD_CQR_ERROR)) { + (erp->status == DASD_CQR_NEED_ERP)) { erp = dasd_3990_erp_compound_code(erp, sense); } if ((erp->function == dasd_3990_erp_compound_code) && - (erp->status == DASD_CQR_ERROR)) { + (erp->status == DASD_CQR_NEED_ERP)) { dasd_3990_erp_compound_config(erp, sense); } /* if no compound action ERP specified, the request failed */ - if (erp->status == DASD_CQR_ERROR) { - + if (erp->status == DASD_CQR_NEED_ERP) erp->status = DASD_CQR_FAILED; - } return erp; @@ -2127,7 +2015,7 @@ static struct dasd_ccw_req * dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; erp->function = dasd_3990_erp_inspect_32; @@ -2149,8 +2037,7 @@ dasd_3990_erp_inspect_32(struct dasd_ccw_req * erp, char *sense) case 0x01: /* fatal error */ DEV_MESSAGE(KERN_ERR, device, "%s", - "Fatal error should have been " - "handled within the interrupt handler"); + "Retry not recommended - Fatal error"); erp = dasd_3990_erp_cleanup(erp, DASD_CQR_FAILED); break; @@ -2253,6 +2140,11 @@ dasd_3990_erp_inspect(struct dasd_ccw_req * erp) /* already set up new ERP ! */ char *sense = erp->refers->irb.ecw; + /* if this problem occured on an alias retry on base */ + erp_new = dasd_3990_erp_inspect_alias(erp); + if (erp_new) + return erp_new; + /* distinguish between 24 and 32 byte sense data */ if (sense[27] & DASD_SENSE_BIT_0) { @@ -2287,13 +2179,13 @@ static struct dasd_ccw_req * dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) { - struct dasd_device *device = cqr->device; + struct dasd_device *device = cqr->startdev; struct ccw1 *ccw; /* allocate additional request block */ struct dasd_ccw_req *erp; - erp = dasd_alloc_erp_request((char *) &cqr->magic, 2, 0, cqr->device); + erp = dasd_alloc_erp_request((char *) &cqr->magic, 2, 0, device); if (IS_ERR(erp)) { if (cqr->retries <= 0) { DEV_MESSAGE(KERN_ERR, device, "%s", @@ -2305,7 +2197,7 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) "Unable to allocate ERP request " "(%i retries left)", cqr->retries); - dasd_set_timer(device, (HZ << 3)); + dasd_block_set_timer(device->block, (HZ << 3)); } return cqr; } @@ -2319,7 +2211,9 @@ dasd_3990_erp_add_erp(struct dasd_ccw_req * cqr) ccw->cda = (long)(cqr->cpaddr); erp->function = dasd_3990_erp_add_erp; erp->refers = cqr; - erp->device = cqr->device; + erp->startdev = device; + erp->memdev = device; + erp->block = cqr->block; erp->magic = cqr->magic; erp->expires = 0; erp->retries = 256; @@ -2466,7 +2360,7 @@ static struct dasd_ccw_req * dasd_3990_erp_further_erp(struct dasd_ccw_req *erp) { - struct dasd_device *device = erp->device; + struct dasd_device *device = erp->startdev; char *sense = erp->irb.ecw; /* check for 24 byte sense ERP */ @@ -2557,7 +2451,7 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, struct dasd_ccw_req *erp) { - struct dasd_device *device = erp_head->device; + struct dasd_device *device = erp_head->startdev; struct dasd_ccw_req *erp_done = erp_head; /* finished req */ struct dasd_ccw_req *erp_free = NULL; /* req to be freed */ @@ -2569,13 +2463,13 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, "original request was lost\n"); /* remove the request from the device queue */ - list_del(&erp_done->list); + list_del(&erp_done->blocklist); erp_free = erp_done; erp_done = erp_done->refers; /* free the finished erp request */ - dasd_free_erp_request(erp_free, erp_free->device); + dasd_free_erp_request(erp_free, erp_free->memdev); } /* end while */ @@ -2603,7 +2497,7 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, erp->retries, erp); /* handle the request again... */ - erp->status = DASD_CQR_QUEUED; + erp->status = DASD_CQR_FILLED; } } else { @@ -2620,7 +2514,7 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, * DASD_3990_ERP_ACTION * * DESCRIPTION - * controll routine for 3990 erp actions. + * control routine for 3990 erp actions. * Has to be called with the queue lock (namely the s390_irq_lock) acquired. * * PARAMETER @@ -2636,9 +2530,8 @@ dasd_3990_erp_handle_match_erp(struct dasd_ccw_req *erp_head, struct dasd_ccw_req * dasd_3990_erp_action(struct dasd_ccw_req * cqr) { - struct dasd_ccw_req *erp = NULL; - struct dasd_device *device = cqr->device; + struct dasd_device *device = cqr->startdev; struct dasd_ccw_req *temp_erp = NULL; if (device->features & DASD_FEATURE_ERPLOG) { @@ -2704,10 +2597,11 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) } } - /* enqueue added ERP request */ - if (erp->status == DASD_CQR_FILLED) { - erp->status = DASD_CQR_QUEUED; - list_add(&erp->list, &device->ccw_queue); + /* enqueue ERP request if it's a new one */ + if (list_empty(&erp->blocklist)) { + cqr->status = DASD_CQR_IN_ERP; + /* add erp request before the cqr */ + list_add_tail(&erp->blocklist, &cqr->blocklist); } return erp; diff --git a/drivers/s390/block/dasd_9336_erp.c b/drivers/s390/block/dasd_9336_erp.c deleted file mode 100644 index 6e082688475..00000000000 --- a/drivers/s390/block/dasd_9336_erp.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * File...........: linux/drivers/s390/block/dasd_9336_erp.c - * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Bugreports.to..: <Linux390@de.ibm.com> - * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000 - * - */ - -#define PRINTK_HEADER "dasd_erp(9336)" - -#include "dasd_int.h" - - -/* - * DASD_9336_ERP_EXAMINE - * - * DESCRIPTION - * Checks only for fatal/no/recover error. - * A detailed examination of the sense data is done later outside - * the interrupt handler. - * - * The logic is based on the 'IBM 3880 Storage Control Reference' manual - * 'Chapter 7. 9336 Sense Data'. - * - * RETURN VALUES - * dasd_era_none no error - * dasd_era_fatal for all fatal (unrecoverable errors) - * dasd_era_recover for all others. - */ -dasd_era_t -dasd_9336_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) -{ - /* check for successful execution first */ - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - - /* examine the 24 byte sense data */ - return dasd_era_recover; - -} /* END dasd_9336_erp_examine */ diff --git a/drivers/s390/block/dasd_9343_erp.c b/drivers/s390/block/dasd_9343_erp.c deleted file mode 100644 index ddecb9808ed..00000000000 --- a/drivers/s390/block/dasd_9343_erp.c +++ /dev/null @@ -1,21 +0,0 @@ -/* - * File...........: linux/drivers/s390/block/dasd_9345_erp.c - * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> - * Bugreports.to..: <Linux390@de.ibm.com> - * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000 - * - */ - -#define PRINTK_HEADER "dasd_erp(9343)" - -#include "dasd_int.h" - -dasd_era_t -dasd_9343_erp_examine(struct dasd_ccw_req * cqr, struct irb * irb) -{ - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - - return dasd_era_recover; -} diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c new file mode 100644 index 00000000000..3a40bee9d35 --- /dev/null +++ b/drivers/s390/block/dasd_alias.c @@ -0,0 +1,903 @@ +/* + * PAV alias management for the DASD ECKD discipline + * + * Copyright IBM Corporation, 2007 + * Author(s): Stefan Weinhuber <wein@de.ibm.com> + */ + +#include <linux/list.h> +#include <asm/ebcdic.h> +#include "dasd_int.h" +#include "dasd_eckd.h" + +#ifdef PRINTK_HEADER +#undef PRINTK_HEADER +#endif /* PRINTK_HEADER */ +#define PRINTK_HEADER "dasd(eckd):" + + +/* + * General concept of alias management: + * - PAV and DASD alias management is specific to the eckd discipline. + * - A device is connected to an lcu as long as the device exists. + * dasd_alias_make_device_known_to_lcu will be called wenn the + * device is checked by the eckd discipline and + * dasd_alias_disconnect_device_from_lcu will be called + * before the device is deleted. + * - The dasd_alias_add_device / dasd_alias_remove_device + * functions mark the point when a device is 'ready for service'. + * - A summary unit check is a rare occasion, but it is mandatory to + * support it. It requires some complex recovery actions before the + * devices can be used again (see dasd_alias_handle_summary_unit_check). + * - dasd_alias_get_start_dev will find an alias device that can be used + * instead of the base device and does some (very simple) load balancing. + * This is the function that gets called for each I/O, so when improving + * something, this function should get faster or better, the rest has just + * to be correct. + */ + + +static void summary_unit_check_handling_work(struct work_struct *); +static void lcu_update_work(struct work_struct *); +static int _schedule_lcu_update(struct alias_lcu *, struct dasd_device *); + +static struct alias_root aliastree = { + .serverlist = LIST_HEAD_INIT(aliastree.serverlist), + .lock = __SPIN_LOCK_UNLOCKED(aliastree.lock), +}; + +static struct alias_server *_find_server(struct dasd_uid *uid) +{ + struct alias_server *pos; + list_for_each_entry(pos, &aliastree.serverlist, server) { + if (!strncmp(pos->uid.vendor, uid->vendor, + sizeof(uid->vendor)) + && !strncmp(pos->uid.serial, uid->serial, + sizeof(uid->serial))) + return pos; + }; + return NULL; +} + +static struct alias_lcu *_find_lcu(struct alias_server *server, + struct dasd_uid *uid) +{ + struct alias_lcu *pos; + list_for_each_entry(pos, &server->lculist, lcu) { + if (pos->uid.ssid == uid->ssid) + return pos; + }; + return NULL; +} + +static struct alias_pav_group *_find_group(struct alias_lcu *lcu, + struct dasd_uid *uid) +{ + struct alias_pav_group *pos; + __u8 search_unit_addr; + + /* for hyper pav there is only one group */ + if (lcu->pav == HYPER_PAV) { + if (list_empty(&lcu->grouplist)) + return NULL; + else + return list_first_entry(&lcu->grouplist, + struct alias_pav_group, group); + } + + /* for base pav we have to find the group that matches the base */ + if (uid->type == UA_BASE_DEVICE) + search_unit_addr = uid->real_unit_addr; + else + search_unit_addr = uid->base_unit_addr; + list_for_each_entry(pos, &lcu->grouplist, group) { + if (pos->uid.base_unit_addr == search_unit_addr) + return pos; + }; + return NULL; +} + +static struct alias_server *_allocate_server(struct dasd_uid *uid) +{ + struct alias_server *server; + + server = kzalloc(sizeof(*server), GFP_KERNEL); + if (!server) + return ERR_PTR(-ENOMEM); + memcpy(server->uid.vendor, uid->vendor, sizeof(uid->vendor)); + memcpy(server->uid.serial, uid->serial, sizeof(uid->serial)); + INIT_LIST_HEAD(&server->server); + INIT_LIST_HEAD(&server->lculist); + return server; +} + +static void _free_server(struct alias_server *server) +{ + kfree(server); +} + +static struct alias_lcu *_allocate_lcu(struct dasd_uid *uid) +{ + struct alias_lcu *lcu; + + lcu = kzalloc(sizeof(*lcu), GFP_KERNEL); + if (!lcu) + return ERR_PTR(-ENOMEM); + lcu->uac = kzalloc(sizeof(*(lcu->uac)), GFP_KERNEL | GFP_DMA); + if (!lcu->uac) + goto out_err1; + lcu->rsu_cqr = kzalloc(sizeof(*lcu->rsu_cqr), GFP_KERNEL | GFP_DMA); + if (!lcu->rsu_cqr) + goto out_err2; + lcu->rsu_cqr->cpaddr = kzalloc(sizeof(struct ccw1), + GFP_KERNEL | GFP_DMA); + if (!lcu->rsu_cqr->cpaddr) + goto out_err3; + lcu->rsu_cqr->data = kzalloc(16, GFP_KERNEL | GFP_DMA); + if (!lcu->rsu_cqr->data) + goto out_err4; + + memcpy(lcu->uid.vendor, uid->vendor, sizeof(uid->vendor)); + memcpy(lcu->uid.serial, uid->serial, sizeof(uid->serial)); + lcu->uid.ssid = uid->ssid; + lcu->pav = NO_PAV; + lcu->flags = NEED_UAC_UPDATE | UPDATE_PENDING; + INIT_LIST_HEAD(&lcu->lcu); + INIT_LIST_HEAD(&lcu->inactive_devices); + INIT_LIST_HEAD(&lcu->active_devices); + INIT_LIST_HEAD(&lcu->grouplist); + INIT_WORK(&lcu->suc_data.worker, summary_unit_check_handling_work); + INIT_DELAYED_WORK(&lcu->ruac_data.dwork, lcu_update_work); + spin_lock_init(&lcu->lock); + return lcu; + +out_err4: + kfree(lcu->rsu_cqr->cpaddr); +out_err3: + kfree(lcu->rsu_cqr); +out_err2: + kfree(lcu->uac); +out_err1: + kfree(lcu); + return ERR_PTR(-ENOMEM); +} + +static void _free_lcu(struct alias_lcu *lcu) +{ + kfree(lcu->rsu_cqr->data); + kfree(lcu->rsu_cqr->cpaddr); + kfree(lcu->rsu_cqr); + kfree(lcu->uac); + kfree(lcu); +} + +/* + * This is the function that will allocate all the server and lcu data, + * so this function must be called first for a new device. + * If the return value is 1, the lcu was already known before, if it + * is 0, this is a new lcu. + * Negative return code indicates that something went wrong (e.g. -ENOMEM) + */ +int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + unsigned long flags; + struct alias_server *server, *newserver; + struct alias_lcu *lcu, *newlcu; + int is_lcu_known; + struct dasd_uid *uid; + + private = (struct dasd_eckd_private *) device->private; + uid = &private->uid; + spin_lock_irqsave(&aliastree.lock, flags); + is_lcu_known = 1; + server = _find_server(uid); + if (!server) { + spin_unlock_irqrestore(&aliastree.lock, flags); + newserver = _allocate_server(uid); + if (IS_ERR(newserver)) + return PTR_ERR(newserver); + spin_lock_irqsave(&aliastree.lock, flags); + server = _find_server(uid); + if (!server) { + list_add(&newserver->server, &aliastree.serverlist); + server = newserver; + is_lcu_known = 0; + } else { + /* someone was faster */ + _free_server(newserver); + } + } + + lcu = _find_lcu(server, uid); + if (!lcu) { + spin_unlock_irqrestore(&aliastree.lock, flags); + newlcu = _allocate_lcu(uid); + if (IS_ERR(newlcu)) + return PTR_ERR(lcu); + spin_lock_irqsave(&aliastree.lock, flags); + lcu = _find_lcu(server, uid); + if (!lcu) { + list_add(&newlcu->lcu, &server->lculist); + lcu = newlcu; + is_lcu_known = 0; + } else { + /* someone was faster */ + _free_lcu(newlcu); + } + is_lcu_known = 0; + } + spin_lock(&lcu->lock); + list_add(&device->alias_list, &lcu->inactive_devices); + private->lcu = lcu; + spin_unlock(&lcu->lock); + spin_unlock_irqrestore(&aliastree.lock, flags); + + return is_lcu_known; +} + +/* + * This function removes a device from the scope of alias management. + * The complicated part is to make sure that it is not in use by + * any of the workers. If necessary cancel the work. + */ +void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + unsigned long flags; + struct alias_lcu *lcu; + struct alias_server *server; + int was_pending; + + private = (struct dasd_eckd_private *) device->private; + lcu = private->lcu; + spin_lock_irqsave(&lcu->lock, flags); + list_del_init(&device->alias_list); + /* make sure that the workers don't use this device */ + if (device == lcu->suc_data.device) { + spin_unlock_irqrestore(&lcu->lock, flags); + cancel_work_sync(&lcu->suc_data.worker); + spin_lock_irqsave(&lcu->lock, flags); + if (device == lcu->suc_data.device) + lcu->suc_data.device = NULL; + } + was_pending = 0; + if (device == lcu->ruac_data.device) { + spin_unlock_irqrestore(&lcu->lock, flags); + was_pending = 1; + cancel_delayed_work_sync(&lcu->ruac_data.dwork); + spin_lock_irqsave(&lcu->lock, flags); + if (device == lcu->ruac_data.device) + lcu->ruac_data.device = NULL; + } + private->lcu = NULL; + spin_unlock_irqrestore(&lcu->lock, flags); + + spin_lock_irqsave(&aliastree.lock, flags); + spin_lock(&lcu->lock); + if (list_empty(&lcu->grouplist) && + list_empty(&lcu->active_devices) && + list_empty(&lcu->inactive_devices)) { + list_del(&lcu->lcu); + spin_unlock(&lcu->lock); + _free_lcu(lcu); + lcu = NULL; + } else { + if (was_pending) + _schedule_lcu_update(lcu, NULL); + spin_unlock(&lcu->lock); + } + server = _find_server(&private->uid); + if (server && list_empty(&server->lculist)) { + list_del(&server->server); + _free_server(server); + } + spin_unlock_irqrestore(&aliastree.lock, flags); +} + +/* + * This function assumes that the unit address configuration stored + * in the lcu is up to date and will update the device uid before + * adding it to a pav group. + */ +static int _add_device_to_lcu(struct alias_lcu *lcu, + struct dasd_device *device) +{ + + struct dasd_eckd_private *private; + struct alias_pav_group *group; + struct dasd_uid *uid; + + private = (struct dasd_eckd_private *) device->private; + uid = &private->uid; + uid->type = lcu->uac->unit[uid->real_unit_addr].ua_type; + uid->base_unit_addr = lcu->uac->unit[uid->real_unit_addr].base_ua; + dasd_set_uid(device->cdev, &private->uid); + + /* if we have no PAV anyway, we don't need to bother with PAV groups */ + if (lcu->pav == NO_PAV) { + list_move(&device->alias_list, &lcu->active_devices); + return 0; + } + + group = _find_group(lcu, uid); + if (!group) { + group = kzalloc(sizeof(*group), GFP_ATOMIC); + if (!group) + return -ENOMEM; + memcpy(group->uid.vendor, uid->vendor, sizeof(uid->vendor)); + memcpy(group->uid.serial, uid->serial, sizeof(uid->serial)); + group->uid.ssid = uid->ssid; + if (uid->type == UA_BASE_DEVICE) + group->uid.base_unit_addr = uid->real_unit_addr; + else + group->uid.base_unit_addr = uid->base_unit_addr; + INIT_LIST_HEAD(&group->group); + INIT_LIST_HEAD(&group->baselist); + INIT_LIST_HEAD(&group->aliaslist); + list_add(&group->group, &lcu->grouplist); + } + if (uid->type == UA_BASE_DEVICE) + list_move(&device->alias_list, &group->baselist); + else + list_move(&device->alias_list, &group->aliaslist); + private->pavgroup = group; + return 0; +}; + +static void _remove_device_from_lcu(struct alias_lcu *lcu, + struct dasd_device *device) +{ + struct dasd_eckd_private *private; + struct alias_pav_group *group; + + private = (struct dasd_eckd_private *) device->private; + list_move(&device->alias_list, &lcu->inactive_devices); + group = private->pavgroup; + if (!group) + return; + private->pavgroup = NULL; + if (list_empty(&group->baselist) && list_empty(&group->aliaslist)) { + list_del(&group->group); + kfree(group); + return; + } + if (group->next == device) + group->next = NULL; +}; + +static int read_unit_address_configuration(struct dasd_device *device, + struct alias_lcu *lcu) +{ + struct dasd_psf_prssd_data *prssdp; + struct dasd_ccw_req *cqr; + struct ccw1 *ccw; + int rc; + unsigned long flags; + + cqr = dasd_kmalloc_request("ECKD", + 1 /* PSF */ + 1 /* RSSD */ , + (sizeof(struct dasd_psf_prssd_data)), + device); + if (IS_ERR(cqr)) + return PTR_ERR(cqr); + cqr->startdev = device; + cqr->memdev = device; + clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); + cqr->retries = 10; + cqr->expires = 20 * HZ; + + /* Prepare for Read Subsystem Data */ + prssdp = (struct dasd_psf_prssd_data *) cqr->data; + memset(prssdp, 0, sizeof(struct dasd_psf_prssd_data)); + prssdp->order = PSF_ORDER_PRSSD; + prssdp->suborder = 0x0e; /* Read unit address configuration */ + /* all other bytes of prssdp must be zero */ + + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_PSF; + ccw->count = sizeof(struct dasd_psf_prssd_data); + ccw->flags |= CCW_FLAG_CC; + ccw->cda = (__u32)(addr_t) prssdp; + + /* Read Subsystem Data - feature codes */ + memset(lcu->uac, 0, sizeof(*(lcu->uac))); + + ccw++; + ccw->cmd_code = DASD_ECKD_CCW_RSSD; + ccw->count = sizeof(*(lcu->uac)); + ccw->cda = (__u32)(addr_t) lcu->uac; + + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + + /* need to unset flag here to detect race with summary unit check */ + spin_lock_irqsave(&lcu->lock, flags); + lcu->flags &= ~NEED_UAC_UPDATE; + spin_unlock_irqrestore(&lcu->lock, flags); + + do { + rc = dasd_sleep_on(cqr); + } while (rc && (cqr->retries > 0)); + if (rc) { + spin_lock_irqsave(&lcu->lock, flags); + lcu->flags |= NEED_UAC_UPDATE; + spin_unlock_irqrestore(&lcu->lock, flags); + } + dasd_kfree_request(cqr, cqr->memdev); + return rc; +} + +static int _lcu_update(struct dasd_device *refdev, struct alias_lcu *lcu) +{ + unsigned long flags; + struct alias_pav_group *pavgroup, *tempgroup; + struct dasd_device *device, *tempdev; + int i, rc; + struct dasd_eckd_private *private; + + spin_lock_irqsave(&lcu->lock, flags); + list_for_each_entry_safe(pavgroup, tempgroup, &lcu->grouplist, group) { + list_for_each_entry_safe(device, tempdev, &pavgroup->baselist, + alias_list) { + list_move(&device->alias_list, &lcu->active_devices); + private = (struct dasd_eckd_private *) device->private; + private->pavgroup = NULL; + } + list_for_each_entry_safe(device, tempdev, &pavgroup->aliaslist, + alias_list) { + list_move(&device->alias_list, &lcu->active_devices); + private = (struct dasd_eckd_private *) device->private; + private->pavgroup = NULL; + } + list_del(&pavgroup->group); + kfree(pavgroup); + } + spin_unlock_irqrestore(&lcu->lock, flags); + + rc = read_unit_address_configuration(refdev, lcu); + if (rc) + return rc; + + spin_lock_irqsave(&lcu->lock, flags); + lcu->pav = NO_PAV; + for (i = 0; i < MAX_DEVICES_PER_LCU; ++i) { + switch (lcu->uac->unit[i].ua_type) { + case UA_BASE_PAV_ALIAS: + lcu->pav = BASE_PAV; + break; + case UA_HYPER_PAV_ALIAS: + lcu->pav = HYPER_PAV; + break; + } + if (lcu->pav != NO_PAV) + break; + } + + list_for_each_entry_safe(device, tempdev, &lcu->active_devices, + alias_list) { + _add_device_to_lcu(lcu, device); + } + spin_unlock_irqrestore(&lcu->lock, flags); + return 0; +} + +static void lcu_update_work(struct work_struct *work) +{ + struct alias_lcu *lcu; + struct read_uac_work_data *ruac_data; + struct dasd_device *device; + unsigned long flags; + int rc; + + ruac_data = container_of(work, struct read_uac_work_data, dwork.work); + lcu = container_of(ruac_data, struct alias_lcu, ruac_data); + device = ruac_data->device; + rc = _lcu_update(device, lcu); + /* + * Need to check flags again, as there could have been another + * prepare_update or a new device a new device while we were still + * processing the data + */ + spin_lock_irqsave(&lcu->lock, flags); + if (rc || (lcu->flags & NEED_UAC_UPDATE)) { + DEV_MESSAGE(KERN_WARNING, device, "could not update" + " alias data in lcu (rc = %d), retry later", rc); + schedule_delayed_work(&lcu->ruac_data.dwork, 30*HZ); + } else { + lcu->ruac_data.device = NULL; + lcu->flags &= ~UPDATE_PENDING; + } + spin_unlock_irqrestore(&lcu->lock, flags); +} + +static int _schedule_lcu_update(struct alias_lcu *lcu, + struct dasd_device *device) +{ + struct dasd_device *usedev = NULL; + struct alias_pav_group *group; + + lcu->flags |= NEED_UAC_UPDATE; + if (lcu->ruac_data.device) { + /* already scheduled or running */ + return 0; + } + if (device && !list_empty(&device->alias_list)) + usedev = device; + + if (!usedev && !list_empty(&lcu->grouplist)) { + group = list_first_entry(&lcu->grouplist, + struct alias_pav_group, group); + if (!list_empty(&group->baselist)) + usedev = list_first_entry(&group->baselist, + struct dasd_device, + alias_list); + else if (!list_empty(&group->aliaslist)) + usedev = list_first_entry(&group->aliaslist, + struct dasd_device, + alias_list); + } + if (!usedev && !list_empty(&lcu->active_devices)) { + usedev = list_first_entry(&lcu->active_devices, + struct dasd_device, alias_list); + } + /* + * if we haven't found a proper device yet, give up for now, the next + * device that will be set active will trigger an lcu update + */ + if (!usedev) + return -EINVAL; + lcu->ruac_data.device = usedev; + schedule_delayed_work(&lcu->ruac_data.dwork, 0); + return 0; +} + +int dasd_alias_add_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + struct alias_lcu *lcu; + unsigned long flags; + int rc; + + private = (struct dasd_eckd_private *) device->private; + lcu = private->lcu; + rc = 0; + spin_lock_irqsave(&lcu->lock, flags); + if (!(lcu->flags & UPDATE_PENDING)) { + rc = _add_device_to_lcu(lcu, device); + if (rc) + lcu->flags |= UPDATE_PENDING; + } + if (lcu->flags & UPDATE_PENDING) { + list_move(&device->alias_list, &lcu->active_devices); + _schedule_lcu_update(lcu, device); + } + spin_unlock_irqrestore(&lcu->lock, flags); + return rc; +} + +int dasd_alias_remove_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + struct alias_lcu *lcu; + unsigned long flags; + + private = (struct dasd_eckd_private *) device->private; + lcu = private->lcu; + spin_lock_irqsave(&lcu->lock, flags); + _remove_device_from_lcu(lcu, device); + spin_unlock_irqrestore(&lcu->lock, flags); + return 0; +} + +struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *base_device) +{ + + struct dasd_device *alias_device; + struct alias_pav_group *group; + struct alias_lcu *lcu; + struct dasd_eckd_private *private, *alias_priv; + unsigned long flags; + + private = (struct dasd_eckd_private *) base_device->private; + group = private->pavgroup; + lcu = private->lcu; + if (!group || !lcu) + return NULL; + if (lcu->pav == NO_PAV || + lcu->flags & (NEED_UAC_UPDATE | UPDATE_PENDING)) + return NULL; + + spin_lock_irqsave(&lcu->lock, flags); + alias_device = group->next; + if (!alias_device) { + if (list_empty(&group->aliaslist)) { + spin_unlock_irqrestore(&lcu->lock, flags); + return NULL; + } else { + alias_device = list_first_entry(&group->aliaslist, + struct dasd_device, + alias_list); + } + } + if (list_is_last(&alias_device->alias_list, &group->aliaslist)) + group->next = list_first_entry(&group->aliaslist, + struct dasd_device, alias_list); + else + group->next = list_first_entry(&alias_device->alias_list, + struct dasd_device, alias_list); + spin_unlock_irqrestore(&lcu->lock, flags); + alias_priv = (struct dasd_eckd_private *) alias_device->private; + if ((alias_priv->count < private->count) && !alias_device->stopped) + return alias_device; + else + return NULL; +} + +/* + * Summary unit check handling depends on the way alias devices + * are handled so it is done here rather then in dasd_eckd.c + */ +static int reset_summary_unit_check(struct alias_lcu *lcu, + struct dasd_device *device, + char reason) +{ + struct dasd_ccw_req *cqr; + int rc = 0; + + cqr = lcu->rsu_cqr; + strncpy((char *) &cqr->magic, "ECKD", 4); + ASCEBC((char *) &cqr->magic, 4); + cqr->cpaddr->cmd_code = DASD_ECKD_CCW_RSCK; + cqr->cpaddr->flags = 0 ; + cqr->cpaddr->count = 16; + cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; + ((char *)cqr->data)[0] = reason; + + clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); + cqr->retries = 255; /* set retry counter to enable basic ERP */ + cqr->startdev = device; + cqr->memdev = device; + cqr->block = NULL; + cqr->expires = 5 * HZ; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + + rc = dasd_sleep_on_immediatly(cqr); + return rc; +} + +static void _restart_all_base_devices_on_lcu(struct alias_lcu *lcu) +{ + struct alias_pav_group *pavgroup; + struct dasd_device *device; + struct dasd_eckd_private *private; + + /* active and inactive list can contain alias as well as base devices */ + list_for_each_entry(device, &lcu->active_devices, alias_list) { + private = (struct dasd_eckd_private *) device->private; + if (private->uid.type != UA_BASE_DEVICE) + continue; + dasd_schedule_block_bh(device->block); + dasd_schedule_device_bh(device); + } + list_for_each_entry(device, &lcu->inactive_devices, alias_list) { + private = (struct dasd_eckd_private *) device->private; + if (private->uid.type != UA_BASE_DEVICE) + continue; + dasd_schedule_block_bh(device->block); + dasd_schedule_device_bh(device); + } + list_for_each_entry(pavgroup, &lcu->grouplist, group) { + list_for_each_entry(device, &pavgroup->baselist, alias_list) { + dasd_schedule_block_bh(device->block); + dasd_schedule_device_bh(device); + } + } +} + +static void flush_all_alias_devices_on_lcu(struct alias_lcu *lcu) +{ + struct alias_pav_group *pavgroup; + struct dasd_device *device, *temp; + struct dasd_eckd_private *private; + int rc; + unsigned long flags; + LIST_HEAD(active); + + /* + * Problem here ist that dasd_flush_device_queue may wait + * for termination of a request to complete. We can't keep + * the lcu lock during that time, so we must assume that + * the lists may have changed. + * Idea: first gather all active alias devices in a separate list, + * then flush the first element of this list unlocked, and afterwards + * check if it is still on the list before moving it to the + * active_devices list. + */ + + spin_lock_irqsave(&lcu->lock, flags); + list_for_each_entry_safe(device, temp, &lcu->active_devices, + alias_list) { + private = (struct dasd_eckd_private *) device->private; + if (private->uid.type == UA_BASE_DEVICE) + continue; + list_move(&device->alias_list, &active); + } + + list_for_each_entry(pavgroup, &lcu->grouplist, group) { + list_splice_init(&pavgroup->aliaslist, &active); + } + while (!list_empty(&active)) { + device = list_first_entry(&active, struct dasd_device, + alias_list); + spin_unlock_irqrestore(&lcu->lock, flags); + rc = dasd_flush_device_queue(device); + spin_lock_irqsave(&lcu->lock, flags); + /* + * only move device around if it wasn't moved away while we + * were waiting for the flush + */ + if (device == list_first_entry(&active, + struct dasd_device, alias_list)) + list_move(&device->alias_list, &lcu->active_devices); + } + spin_unlock_irqrestore(&lcu->lock, flags); +} + +/* + * This function is called in interrupt context, so the + * cdev lock for device is already locked! + */ +static void _stop_all_devices_on_lcu(struct alias_lcu *lcu, + struct dasd_device *device) +{ + struct alias_pav_group *pavgroup; + struct dasd_device *pos; + + list_for_each_entry(pos, &lcu->active_devices, alias_list) { + if (pos != device) + spin_lock(get_ccwdev_lock(pos->cdev)); + pos->stopped |= DASD_STOPPED_SU; + if (pos != device) + spin_unlock(get_ccwdev_lock(pos->cdev)); + } + list_for_each_entry(pos, &lcu->inactive_devices, alias_list) { + if (pos != device) + spin_lock(get_ccwdev_lock(pos->cdev)); + pos->stopped |= DASD_STOPPED_SU; + if (pos != device) + spin_unlock(get_ccwdev_lock(pos->cdev)); + } + list_for_each_entry(pavgroup, &lcu->grouplist, group) { + list_for_each_entry(pos, &pavgroup->baselist, alias_list) { + if (pos != device) + spin_lock(get_ccwdev_lock(pos->cdev)); + pos->stopped |= DASD_STOPPED_SU; + if (pos != device) + spin_unlock(get_ccwdev_lock(pos->cdev)); + } + list_for_each_entry(pos, &pavgroup->aliaslist, alias_list) { + if (pos != device) + spin_lock(get_ccwdev_lock(pos->cdev)); + pos->stopped |= DASD_STOPPED_SU; + if (pos != device) + spin_unlock(get_ccwdev_lock(pos->cdev)); + } + } +} + +static void _unstop_all_devices_on_lcu(struct alias_lcu *lcu) +{ + struct alias_pav_group *pavgroup; + struct dasd_device *device; + unsigned long flags; + + list_for_each_entry(device, &lcu->active_devices, alias_list) { + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->stopped &= ~DASD_STOPPED_SU; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + } + + list_for_each_entry(device, &lcu->inactive_devices, alias_list) { + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->stopped &= ~DASD_STOPPED_SU; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + } + + list_for_each_entry(pavgroup, &lcu->grouplist, group) { + list_for_each_entry(device, &pavgroup->baselist, alias_list) { + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->stopped &= ~DASD_STOPPED_SU; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); + } + list_for_each_entry(device, &pavgroup->aliaslist, alias_list) { + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->stopped &= ~DASD_STOPPED_SU; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); + } + } +} + +static void summary_unit_check_handling_work(struct work_struct *work) +{ + struct alias_lcu *lcu; + struct summary_unit_check_work_data *suc_data; + unsigned long flags; + struct dasd_device *device; + + suc_data = container_of(work, struct summary_unit_check_work_data, + worker); + lcu = container_of(suc_data, struct alias_lcu, suc_data); + device = suc_data->device; + + /* 1. flush alias devices */ + flush_all_alias_devices_on_lcu(lcu); + + /* 2. reset summary unit check */ + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->stopped &= ~(DASD_STOPPED_SU | DASD_STOPPED_PENDING); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + reset_summary_unit_check(lcu, device, suc_data->reason); + + spin_lock_irqsave(&lcu->lock, flags); + _unstop_all_devices_on_lcu(lcu); + _restart_all_base_devices_on_lcu(lcu); + /* 3. read new alias configuration */ + _schedule_lcu_update(lcu, device); + lcu->suc_data.device = NULL; + spin_unlock_irqrestore(&lcu->lock, flags); +} + +/* + * note: this will be called from int handler context (cdev locked) + */ +void dasd_alias_handle_summary_unit_check(struct dasd_device *device, + struct irb *irb) +{ + struct alias_lcu *lcu; + char reason; + struct dasd_eckd_private *private; + + private = (struct dasd_eckd_private *) device->private; + + reason = irb->ecw[8]; + DEV_MESSAGE(KERN_WARNING, device, "%s %x", + "eckd handle summary unit check: reason", reason); + + lcu = private->lcu; + if (!lcu) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "device not ready to handle summary" + " unit check (no lcu structure)"); + return; + } + spin_lock(&lcu->lock); + _stop_all_devices_on_lcu(lcu, device); + /* prepare for lcu_update */ + private->lcu->flags |= NEED_UAC_UPDATE | UPDATE_PENDING; + /* If this device is about to be removed just return and wait for + * the next interrupt on a different device + */ + if (list_empty(&device->alias_list)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "device is in offline processing," + " don't do summary unit check handling"); + spin_unlock(&lcu->lock); + return; + } + if (lcu->suc_data.device) { + /* already scheduled or running */ + DEV_MESSAGE(KERN_WARNING, device, "%s", + "previous instance of summary unit check worker" + " still pending"); + spin_unlock(&lcu->lock); + return ; + } + lcu->suc_data.reason = reason; + lcu->suc_data.device = device; + spin_unlock(&lcu->lock); + schedule_work(&lcu->suc_data.worker); +}; diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 0c67258fb9e..f4fb4025734 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -49,22 +49,6 @@ struct dasd_devmap { }; /* - * dasd_server_ssid_map contains a globally unique storage server subsystem ID. - * dasd_server_ssid_list contains the list of all subsystem IDs accessed by - * the DASD device driver. - */ -struct dasd_server_ssid_map { - struct list_head list; - struct system_id { - char vendor[4]; - char serial[15]; - __u16 ssid; - } sid; -}; - -static struct list_head dasd_server_ssid_list; - -/* * Parameter parsing functions for dasd= parameter. The syntax is: * <devno> : (0x)?[0-9a-fA-F]+ * <busid> : [0-0a-f]\.[0-9a-f]\.(0x)?[0-9a-fA-F]+ @@ -721,8 +705,9 @@ dasd_ro_store(struct device *dev, struct device_attribute *attr, devmap->features &= ~DASD_FEATURE_READONLY; if (devmap->device) devmap->device->features = devmap->features; - if (devmap->device && devmap->device->gdp) - set_disk_ro(devmap->device->gdp, val); + if (devmap->device && devmap->device->block + && devmap->device->block->gdp) + set_disk_ro(devmap->device->block->gdp, val); spin_unlock(&dasd_devmap_lock); return count; } @@ -893,12 +878,16 @@ dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf) devmap = dasd_find_busid(dev->bus_id); spin_lock(&dasd_devmap_lock); - if (!IS_ERR(devmap)) - alias = devmap->uid.alias; + if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { + spin_unlock(&dasd_devmap_lock); + return sprintf(buf, "0\n"); + } + if (devmap->uid.type == UA_BASE_PAV_ALIAS || + devmap->uid.type == UA_HYPER_PAV_ALIAS) + alias = 1; else alias = 0; spin_unlock(&dasd_devmap_lock); - return sprintf(buf, alias ? "1\n" : "0\n"); } @@ -930,19 +919,36 @@ static ssize_t dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct dasd_devmap *devmap; - char uid[UID_STRLEN]; + char uid_string[UID_STRLEN]; + char ua_string[3]; + struct dasd_uid *uid; devmap = dasd_find_busid(dev->bus_id); spin_lock(&dasd_devmap_lock); - if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) - snprintf(uid, sizeof(uid), "%s.%s.%04x.%02x", - devmap->uid.vendor, devmap->uid.serial, - devmap->uid.ssid, devmap->uid.unit_addr); - else - uid[0] = 0; + if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { + spin_unlock(&dasd_devmap_lock); + return sprintf(buf, "\n"); + } + uid = &devmap->uid; + switch (uid->type) { + case UA_BASE_DEVICE: + sprintf(ua_string, "%02x", uid->real_unit_addr); + break; + case UA_BASE_PAV_ALIAS: + sprintf(ua_string, "%02x", uid->base_unit_addr); + break; + case UA_HYPER_PAV_ALIAS: + sprintf(ua_string, "xx"); + break; + default: + /* should not happen, treat like base device */ + sprintf(ua_string, "%02x", uid->real_unit_addr); + break; + } + snprintf(uid_string, sizeof(uid_string), "%s.%s.%04x.%s", + uid->vendor, uid->serial, uid->ssid, ua_string); spin_unlock(&dasd_devmap_lock); - - return snprintf(buf, PAGE_SIZE, "%s\n", uid); + return snprintf(buf, PAGE_SIZE, "%s\n", uid_string); } static DEVICE_ATTR(uid, 0444, dasd_uid_show, NULL); @@ -1040,39 +1046,16 @@ int dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; - struct dasd_server_ssid_map *srv, *tmp; devmap = dasd_find_busid(cdev->dev.bus_id); if (IS_ERR(devmap)) return PTR_ERR(devmap); - /* generate entry for server_ssid_map */ - srv = (struct dasd_server_ssid_map *) - kzalloc(sizeof(struct dasd_server_ssid_map), GFP_KERNEL); - if (!srv) - return -ENOMEM; - strncpy(srv->sid.vendor, uid->vendor, sizeof(srv->sid.vendor) - 1); - strncpy(srv->sid.serial, uid->serial, sizeof(srv->sid.serial) - 1); - srv->sid.ssid = uid->ssid; - - /* server is already contained ? */ spin_lock(&dasd_devmap_lock); devmap->uid = *uid; - list_for_each_entry(tmp, &dasd_server_ssid_list, list) { - if (!memcmp(&srv->sid, &tmp->sid, - sizeof(struct system_id))) { - kfree(srv); - srv = NULL; - break; - } - } - - /* add servermap to serverlist */ - if (srv) - list_add(&srv->list, &dasd_server_ssid_list); spin_unlock(&dasd_devmap_lock); - return (srv ? 1 : 0); + return 0; } EXPORT_SYMBOL_GPL(dasd_set_uid); @@ -1138,9 +1121,6 @@ dasd_devmap_init(void) dasd_max_devindex = 0; for (i = 0; i < 256; i++) INIT_LIST_HEAD(&dasd_hashlists[i]); - - /* Initialize servermap structure. */ - INIT_LIST_HEAD(&dasd_server_ssid_list); return 0; } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 571320ab9e1..d91df38ee4f 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -142,7 +142,7 @@ dasd_diag_erp(struct dasd_device *device) int rc; mdsk_term_io(device); - rc = mdsk_init_io(device, device->bp_block, 0, NULL); + rc = mdsk_init_io(device, device->block->bp_block, 0, NULL); if (rc) DEV_MESSAGE(KERN_WARNING, device, "DIAG ERP unsuccessful, " "rc=%d", rc); @@ -158,11 +158,11 @@ dasd_start_diag(struct dasd_ccw_req * cqr) struct dasd_diag_req *dreq; int rc; - device = cqr->device; + device = cqr->startdev; if (cqr->retries < 0) { DEV_MESSAGE(KERN_WARNING, device, "DIAG start_IO: request %p " "- no retry left)", cqr); - cqr->status = DASD_CQR_FAILED; + cqr->status = DASD_CQR_ERROR; return -EIO; } private = (struct dasd_diag_private *) device->private; @@ -184,7 +184,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr) switch (rc) { case 0: /* Synchronous I/O finished successfully */ cqr->stopclk = get_clock(); - cqr->status = DASD_CQR_DONE; + cqr->status = DASD_CQR_SUCCESS; /* Indicate to calling function that only a dasd_schedule_bh() and no timer is needed */ rc = -EACCES; @@ -209,12 +209,12 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr) { struct dasd_device *device; - device = cqr->device; + device = cqr->startdev; mdsk_term_io(device); - mdsk_init_io(device, device->bp_block, 0, NULL); - cqr->status = DASD_CQR_CLEAR; + mdsk_init_io(device, device->block->bp_block, 0, NULL); + cqr->status = DASD_CQR_CLEAR_PENDING; cqr->stopclk = get_clock(); - dasd_schedule_bh(device); + dasd_schedule_device_bh(device); return 0; } @@ -247,7 +247,7 @@ dasd_ext_handler(__u16 code) return; } cqr = (struct dasd_ccw_req *) ip; - device = (struct dasd_device *) cqr->device; + device = (struct dasd_device *) cqr->startdev; if (strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { DEV_MESSAGE(KERN_WARNING, device, " magic number of dasd_ccw_req 0x%08X doesn't" @@ -260,10 +260,10 @@ dasd_ext_handler(__u16 code) spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); /* Check for a pending clear operation */ - if (cqr->status == DASD_CQR_CLEAR) { - cqr->status = DASD_CQR_QUEUED; - dasd_clear_timer(device); - dasd_schedule_bh(device); + if (cqr->status == DASD_CQR_CLEAR_PENDING) { + cqr->status = DASD_CQR_CLEARED; + dasd_device_clear_timer(device); + dasd_schedule_device_bh(device); spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); return; } @@ -272,11 +272,11 @@ dasd_ext_handler(__u16 code) expires = 0; if (status == 0) { - cqr->status = DASD_CQR_DONE; + cqr->status = DASD_CQR_SUCCESS; /* Start first request on queue if possible -> fast_io. */ if (!list_empty(&device->ccw_queue)) { next = list_entry(device->ccw_queue.next, - struct dasd_ccw_req, list); + struct dasd_ccw_req, devlist); if (next->status == DASD_CQR_QUEUED) { rc = dasd_start_diag(next); if (rc == 0) @@ -296,10 +296,10 @@ dasd_ext_handler(__u16 code) } if (expires != 0) - dasd_set_timer(device, expires); + dasd_device_set_timer(device, expires); else - dasd_clear_timer(device); - dasd_schedule_bh(device); + dasd_device_clear_timer(device); + dasd_schedule_device_bh(device); spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); } @@ -309,6 +309,7 @@ dasd_ext_handler(__u16 code) static int dasd_diag_check_device(struct dasd_device *device) { + struct dasd_block *block; struct dasd_diag_private *private; struct dasd_diag_characteristics *rdc_data; struct dasd_diag_bio bio; @@ -328,6 +329,16 @@ dasd_diag_check_device(struct dasd_device *device) ccw_device_get_id(device->cdev, &private->dev_id); device->private = (void *) private; } + block = dasd_alloc_block(); + if (IS_ERR(block)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "could not allocate dasd block structure"); + kfree(device->private); + return PTR_ERR(block); + } + device->block = block; + block->base = device; + /* Read Device Characteristics */ rdc_data = (void *) &(private->rdc_data); rdc_data->dev_nr = private->dev_id.devno; @@ -409,14 +420,14 @@ dasd_diag_check_device(struct dasd_device *device) sizeof(DASD_DIAG_CMS1)) == 0) { /* get formatted blocksize from label block */ bsize = (unsigned int) label->block_size; - device->blocks = (unsigned long) label->block_count; + block->blocks = (unsigned long) label->block_count; } else - device->blocks = end_block; - device->bp_block = bsize; - device->s2b_shift = 0; /* bits to shift 512 to get a block */ + block->blocks = end_block; + block->bp_block = bsize; + block->s2b_shift = 0; /* bits to shift 512 to get a block */ for (sb = 512; sb < bsize; sb = sb << 1) - device->s2b_shift++; - rc = mdsk_init_io(device, device->bp_block, 0, NULL); + block->s2b_shift++; + rc = mdsk_init_io(device, block->bp_block, 0, NULL); if (rc) { DEV_MESSAGE(KERN_WARNING, device, "DIAG initialization " "failed (rc=%d)", rc); @@ -424,9 +435,9 @@ dasd_diag_check_device(struct dasd_device *device) } else { DEV_MESSAGE(KERN_INFO, device, "(%ld B/blk): %ldkB", - (unsigned long) device->bp_block, - (unsigned long) (device->blocks << - device->s2b_shift) >> 1); + (unsigned long) block->bp_block, + (unsigned long) (block->blocks << + block->s2b_shift) >> 1); } out: free_page((long) label); @@ -436,22 +447,16 @@ out: /* Fill in virtual disk geometry for device. Return zero on success, non-zero * otherwise. */ static int -dasd_diag_fill_geometry(struct dasd_device *device, struct hd_geometry *geo) +dasd_diag_fill_geometry(struct dasd_block *block, struct hd_geometry *geo) { - if (dasd_check_blocksize(device->bp_block) != 0) + if (dasd_check_blocksize(block->bp_block) != 0) return -EINVAL; - geo->cylinders = (device->blocks << device->s2b_shift) >> 10; + geo->cylinders = (block->blocks << block->s2b_shift) >> 10; geo->heads = 16; - geo->sectors = 128 >> device->s2b_shift; + geo->sectors = 128 >> block->s2b_shift; return 0; } -static dasd_era_t -dasd_diag_examine_error(struct dasd_ccw_req * cqr, struct irb * stat) -{ - return dasd_era_fatal; -} - static dasd_erp_fn_t dasd_diag_erp_action(struct dasd_ccw_req * cqr) { @@ -466,8 +471,9 @@ dasd_diag_erp_postaction(struct dasd_ccw_req * cqr) /* Create DASD request from block device request. Return pointer to new * request on success, ERR_PTR otherwise. */ -static struct dasd_ccw_req * -dasd_diag_build_cp(struct dasd_device * device, struct request *req) +static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev, + struct dasd_block *block, + struct request *req) { struct dasd_ccw_req *cqr; struct dasd_diag_req *dreq; @@ -486,17 +492,17 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) rw_cmd = MDSK_WRITE_REQ; else return ERR_PTR(-EINVAL); - blksize = device->bp_block; + blksize = block->bp_block; /* Calculate record id of first and last block. */ - first_rec = req->sector >> device->s2b_shift; - last_rec = (req->sector + req->nr_sectors - 1) >> device->s2b_shift; + first_rec = req->sector >> block->s2b_shift; + last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift; /* Check struct bio and count the number of blocks for the request. */ count = 0; rq_for_each_segment(bv, req, iter) { if (bv->bv_len & (blksize - 1)) /* Fba can only do full blocks. */ return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); + count += bv->bv_len >> (block->s2b_shift + 9); } /* Paranoia. */ if (count != last_rec - first_rec + 1) @@ -505,7 +511,7 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) datasize = sizeof(struct dasd_diag_req) + count*sizeof(struct dasd_diag_bio); cqr = dasd_smalloc_request(dasd_diag_discipline.name, 0, - datasize, device); + datasize, memdev); if (IS_ERR(cqr)) return cqr; @@ -529,7 +535,9 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) cqr->buildclk = get_clock(); if (req->cmd_flags & REQ_FAILFAST) set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->device = device; + cqr->startdev = memdev; + cqr->memdev = memdev; + cqr->block = block; cqr->expires = DIAG_TIMEOUT; cqr->status = DASD_CQR_FILLED; return cqr; @@ -543,10 +551,15 @@ dasd_diag_free_cp(struct dasd_ccw_req *cqr, struct request *req) int status; status = cqr->status == DASD_CQR_DONE; - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return status; } +static void dasd_diag_handle_terminated_request(struct dasd_ccw_req *cqr) +{ + cqr->status = DASD_CQR_FILLED; +}; + /* Fill in IOCTL data for device. */ static int dasd_diag_fill_info(struct dasd_device * device, @@ -583,7 +596,7 @@ static struct dasd_discipline dasd_diag_discipline = { .fill_geometry = dasd_diag_fill_geometry, .start_IO = dasd_start_diag, .term_IO = dasd_diag_term_IO, - .examine_error = dasd_diag_examine_error, + .handle_terminated_request = dasd_diag_handle_terminated_request, .erp_action = dasd_diag_erp_action, .erp_postaction = dasd_diag_erp_postaction, .build_cp = dasd_diag_build_cp, diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 44adf8496bd..61f16937c1e 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -52,16 +52,6 @@ MODULE_LICENSE("GPL"); static struct dasd_discipline dasd_eckd_discipline; -struct dasd_eckd_private { - struct dasd_eckd_characteristics rdc_data; - struct dasd_eckd_confdata conf_data; - struct dasd_eckd_path path_data; - struct eckd_count count_area[5]; - int init_cqr_status; - int uses_cdl; - struct attrib_data_t attrib; /* e.g. cache operations */ -}; - /* The ccw bus type uses this table to find devices that it sends to * dasd_eckd_probe */ static struct ccw_device_id dasd_eckd_ids[] = { @@ -188,7 +178,7 @@ check_XRC (struct ccw1 *de_ccw, if (rc == -ENOSYS || rc == -EACCES) rc = 0; - de_ccw->count = sizeof (struct DE_eckd_data); + de_ccw->count = sizeof(struct DE_eckd_data); de_ccw->flags |= CCW_FLAG_SLI; return rc; } @@ -208,7 +198,7 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, ccw->count = 16; ccw->cda = (__u32) __pa(data); - memset(data, 0, sizeof (struct DE_eckd_data)); + memset(data, 0, sizeof(struct DE_eckd_data)); switch (cmd) { case DASD_ECKD_CCW_READ_HOME_ADDRESS: case DASD_ECKD_CCW_READ_RECORD_ZERO: @@ -280,6 +270,132 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, return rc; } +static int check_XRC_on_prefix(struct PFX_eckd_data *pfxdata, + struct dasd_device *device) +{ + struct dasd_eckd_private *private; + int rc; + + private = (struct dasd_eckd_private *) device->private; + if (!private->rdc_data.facilities.XRC_supported) + return 0; + + /* switch on System Time Stamp - needed for XRC Support */ + pfxdata->define_extend.ga_extended |= 0x08; /* 'Time Stamp Valid' */ + pfxdata->define_extend.ga_extended |= 0x02; /* 'Extended Parameter' */ + pfxdata->validity.time_stamp = 1; /* 'Time Stamp Valid' */ + + rc = get_sync_clock(&pfxdata->define_extend.ep_sys_time); + /* Ignore return code if sync clock is switched off. */ + if (rc == -ENOSYS || rc == -EACCES) + rc = 0; + return rc; +} + +static int prefix(struct ccw1 *ccw, struct PFX_eckd_data *pfxdata, int trk, + int totrk, int cmd, struct dasd_device *basedev, + struct dasd_device *startdev) +{ + struct dasd_eckd_private *basepriv, *startpriv; + struct DE_eckd_data *data; + struct ch_t geo, beg, end; + int rc = 0; + + basepriv = (struct dasd_eckd_private *) basedev->private; + startpriv = (struct dasd_eckd_private *) startdev->private; + data = &pfxdata->define_extend; + + ccw->cmd_code = DASD_ECKD_CCW_PFX; + ccw->flags = 0; + ccw->count = sizeof(*pfxdata); + ccw->cda = (__u32) __pa(pfxdata); + + memset(pfxdata, 0, sizeof(*pfxdata)); + /* prefix data */ + pfxdata->format = 0; + pfxdata->base_address = basepriv->conf_data.ned1.unit_addr; + pfxdata->base_lss = basepriv->conf_data.ned1.ID; + pfxdata->validity.define_extend = 1; + + /* private uid is kept up to date, conf_data may be outdated */ + if (startpriv->uid.type != UA_BASE_DEVICE) { + pfxdata->validity.verify_base = 1; + if (startpriv->uid.type == UA_HYPER_PAV_ALIAS) + pfxdata->validity.hyper_pav = 1; + } + + /* define extend data (mostly)*/ + switch (cmd) { + case DASD_ECKD_CCW_READ_HOME_ADDRESS: + case DASD_ECKD_CCW_READ_RECORD_ZERO: + case DASD_ECKD_CCW_READ: + case DASD_ECKD_CCW_READ_MT: + case DASD_ECKD_CCW_READ_CKD: + case DASD_ECKD_CCW_READ_CKD_MT: + case DASD_ECKD_CCW_READ_KD: + case DASD_ECKD_CCW_READ_KD_MT: + case DASD_ECKD_CCW_READ_COUNT: + data->mask.perm = 0x1; + data->attributes.operation = basepriv->attrib.operation; + break; + case DASD_ECKD_CCW_WRITE: + case DASD_ECKD_CCW_WRITE_MT: + case DASD_ECKD_CCW_WRITE_KD: + case DASD_ECKD_CCW_WRITE_KD_MT: + data->mask.perm = 0x02; + data->attributes.operation = basepriv->attrib.operation; + rc = check_XRC_on_prefix(pfxdata, basedev); + break; + case DASD_ECKD_CCW_WRITE_CKD: + case DASD_ECKD_CCW_WRITE_CKD_MT: + data->attributes.operation = DASD_BYPASS_CACHE; + rc = check_XRC_on_prefix(pfxdata, basedev); + break; + case DASD_ECKD_CCW_ERASE: + case DASD_ECKD_CCW_WRITE_HOME_ADDRESS: + case DASD_ECKD_CCW_WRITE_RECORD_ZERO: + data->mask.perm = 0x3; + data->mask.auth = 0x1; + data->attributes.operation = DASD_BYPASS_CACHE; + rc = check_XRC_on_prefix(pfxdata, basedev); + break; + default: + DEV_MESSAGE(KERN_ERR, basedev, "unknown opcode 0x%x", cmd); + break; + } + + data->attributes.mode = 0x3; /* ECKD */ + + if ((basepriv->rdc_data.cu_type == 0x2105 || + basepriv->rdc_data.cu_type == 0x2107 || + basepriv->rdc_data.cu_type == 0x1750) + && !(basepriv->uses_cdl && trk < 2)) + data->ga_extended |= 0x40; /* Regular Data Format Mode */ + + geo.cyl = basepriv->rdc_data.no_cyl; + geo.head = basepriv->rdc_data.trk_per_cyl; + beg.cyl = trk / geo.head; + beg.head = trk % geo.head; + end.cyl = totrk / geo.head; + end.head = totrk % geo.head; + + /* check for sequential prestage - enhance cylinder range */ + if (data->attributes.operation == DASD_SEQ_PRESTAGE || + data->attributes.operation == DASD_SEQ_ACCESS) { + + if (end.cyl + basepriv->attrib.nr_cyl < geo.cyl) + end.cyl += basepriv->attrib.nr_cyl; + else + end.cyl = (geo.cyl - 1); + } + + data->beg_ext.cyl = beg.cyl; + data->beg_ext.head = beg.head; + data->end_ext.cyl = end.cyl; + data->end_ext.head = end.head; + return rc; +} + static void locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, int rec_on_trk, int no_rec, int cmd, @@ -300,7 +416,7 @@ locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, ccw->count = 16; ccw->cda = (__u32) __pa(data); - memset(data, 0, sizeof (struct LO_eckd_data)); + memset(data, 0, sizeof(struct LO_eckd_data)); sector = 0; if (rec_on_trk) { switch (private->rdc_data.dev_type) { @@ -441,12 +557,15 @@ dasd_eckd_generate_uid(struct dasd_device *device, struct dasd_uid *uid) sizeof(uid->serial) - 1); EBCASC(uid->serial, sizeof(uid->serial) - 1); uid->ssid = confdata->neq.subsystemID; - if (confdata->ned2.sneq.flags == 0x40) { - uid->alias = 1; - uid->unit_addr = confdata->ned2.sneq.base_unit_addr; - } else - uid->unit_addr = confdata->ned1.unit_addr; - + uid->real_unit_addr = confdata->ned1.unit_addr; + if (confdata->ned2.sneq.flags == 0x40 && + confdata->ned2.sneq.format == 0x0001) { + uid->type = confdata->ned2.sneq.sua_flags; + if (uid->type == UA_BASE_PAV_ALIAS) + uid->base_unit_addr = confdata->ned2.sneq.base_unit_addr; + } else { + uid->type = UA_BASE_DEVICE; + } return 0; } @@ -470,7 +589,9 @@ static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device, ccw->cda = (__u32)(addr_t)rcd_buffer; ccw->count = ciw->count; - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; + cqr->block = NULL; cqr->expires = 10*HZ; cqr->lpm = lpm; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); @@ -511,7 +632,7 @@ static int dasd_eckd_read_conf_lpm(struct dasd_device *device, /* * on success we update the user input parms */ - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); if (ret) goto out_error; @@ -557,19 +678,19 @@ dasd_eckd_read_conf(struct dasd_device *device) "data retrieved"); continue; /* no error */ } - if (conf_len != sizeof (struct dasd_eckd_confdata)) { + if (conf_len != sizeof(struct dasd_eckd_confdata)) { MESSAGE(KERN_WARNING, "sizes of configuration data mismatch" "%d (read) vs %ld (expected)", conf_len, - sizeof (struct dasd_eckd_confdata)); + sizeof(struct dasd_eckd_confdata)); kfree(conf_data); continue; /* no error */ } /* save first valid configuration data */ if (!conf_data_saved){ memcpy(&private->conf_data, conf_data, - sizeof (struct dasd_eckd_confdata)); + sizeof(struct dasd_eckd_confdata)); conf_data_saved++; } switch (((char *)conf_data)[242] & 0x07){ @@ -586,39 +707,104 @@ dasd_eckd_read_conf(struct dasd_device *device) return 0; } +static int dasd_eckd_read_features(struct dasd_device *device) +{ + struct dasd_psf_prssd_data *prssdp; + struct dasd_rssd_features *features; + struct dasd_ccw_req *cqr; + struct ccw1 *ccw; + int rc; + struct dasd_eckd_private *private; + + private = (struct dasd_eckd_private *) device->private; + cqr = dasd_smalloc_request(dasd_eckd_discipline.name, + 1 /* PSF */ + 1 /* RSSD */ , + (sizeof(struct dasd_psf_prssd_data) + + sizeof(struct dasd_rssd_features)), + device); + if (IS_ERR(cqr)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "Could not allocate initialization request"); + return PTR_ERR(cqr); + } + cqr->startdev = device; + cqr->memdev = device; + cqr->block = NULL; + clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); + cqr->retries = 5; + cqr->expires = 10 * HZ; + + /* Prepare for Read Subsystem Data */ + prssdp = (struct dasd_psf_prssd_data *) cqr->data; + memset(prssdp, 0, sizeof(struct dasd_psf_prssd_data)); + prssdp->order = PSF_ORDER_PRSSD; + prssdp->suborder = 0x41; /* Read Feature Codes */ + /* all other bytes of prssdp must be zero */ + + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_PSF; + ccw->count = sizeof(struct dasd_psf_prssd_data); + ccw->flags |= CCW_FLAG_CC; + ccw->cda = (__u32)(addr_t) prssdp; + + /* Read Subsystem Data - feature codes */ + features = (struct dasd_rssd_features *) (prssdp + 1); + memset(features, 0, sizeof(struct dasd_rssd_features)); + + ccw++; + ccw->cmd_code = DASD_ECKD_CCW_RSSD; + ccw->count = sizeof(struct dasd_rssd_features); + ccw->cda = (__u32)(addr_t) features; + + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + rc = dasd_sleep_on(cqr); + if (rc == 0) { + prssdp = (struct dasd_psf_prssd_data *) cqr->data; + features = (struct dasd_rssd_features *) (prssdp + 1); + memcpy(&private->features, features, + sizeof(struct dasd_rssd_features)); + } + dasd_sfree_request(cqr, cqr->memdev); + return rc; +} + + /* * Build CP for Perform Subsystem Function - SSC. */ -static struct dasd_ccw_req * -dasd_eckd_build_psf_ssc(struct dasd_device *device) +static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device) { - struct dasd_ccw_req *cqr; - struct dasd_psf_ssc_data *psf_ssc_data; - struct ccw1 *ccw; + struct dasd_ccw_req *cqr; + struct dasd_psf_ssc_data *psf_ssc_data; + struct ccw1 *ccw; - cqr = dasd_smalloc_request("ECKD", 1 /* PSF */ , + cqr = dasd_smalloc_request("ECKD", 1 /* PSF */ , sizeof(struct dasd_psf_ssc_data), device); - if (IS_ERR(cqr)) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + if (IS_ERR(cqr)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", "Could not allocate PSF-SSC request"); - return cqr; - } - psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data; - psf_ssc_data->order = PSF_ORDER_SSC; - psf_ssc_data->suborder = 0x08; - - ccw = cqr->cpaddr; - ccw->cmd_code = DASD_ECKD_CCW_PSF; - ccw->cda = (__u32)(addr_t)psf_ssc_data; - ccw->count = 66; - - cqr->device = device; - cqr->expires = 10*HZ; - cqr->buildclk = get_clock(); - cqr->status = DASD_CQR_FILLED; - return cqr; + return cqr; + } + psf_ssc_data = (struct dasd_psf_ssc_data *)cqr->data; + psf_ssc_data->order = PSF_ORDER_SSC; + psf_ssc_data->suborder = 0x88; + psf_ssc_data->reserved[0] = 0x88; + + ccw = cqr->cpaddr; + ccw->cmd_code = DASD_ECKD_CCW_PSF; + ccw->cda = (__u32)(addr_t)psf_ssc_data; + ccw->count = 66; + + cqr->startdev = device; + cqr->memdev = device; + cqr->block = NULL; + cqr->expires = 10*HZ; + cqr->buildclk = get_clock(); + cqr->status = DASD_CQR_FILLED; + return cqr; } /* @@ -629,28 +815,28 @@ dasd_eckd_build_psf_ssc(struct dasd_device *device) static int dasd_eckd_psf_ssc(struct dasd_device *device) { - struct dasd_ccw_req *cqr; - int rc; - - cqr = dasd_eckd_build_psf_ssc(device); - if (IS_ERR(cqr)) - return PTR_ERR(cqr); - - rc = dasd_sleep_on(cqr); - if (!rc) - /* trigger CIO to reprobe devices */ - css_schedule_reprobe(); - dasd_sfree_request(cqr, cqr->device); - return rc; + struct dasd_ccw_req *cqr; + int rc; + + cqr = dasd_eckd_build_psf_ssc(device); + if (IS_ERR(cqr)) + return PTR_ERR(cqr); + + rc = dasd_sleep_on(cqr); + if (!rc) + /* trigger CIO to reprobe devices */ + css_schedule_reprobe(); + dasd_sfree_request(cqr, cqr->memdev); + return rc; } /* * Valide storage server of current device. */ -static int -dasd_eckd_validate_server(struct dasd_device *device, struct dasd_uid *uid) +static int dasd_eckd_validate_server(struct dasd_device *device) { int rc; + struct dasd_eckd_private *private; /* Currently PAV is the only reason to 'validate' server on LPAR */ if (dasd_nopav || MACHINE_IS_VM) @@ -659,9 +845,11 @@ dasd_eckd_validate_server(struct dasd_device *device, struct dasd_uid *uid) rc = dasd_eckd_psf_ssc(device); /* may be requested feature is not available on server, * therefore just report error and go ahead */ + private = (struct dasd_eckd_private *) device->private; DEV_MESSAGE(KERN_INFO, device, "PSF-SSC on storage subsystem %s.%s.%04x returned rc=%d", - uid->vendor, uid->serial, uid->ssid, rc); + private->uid.vendor, private->uid.serial, + private->uid.ssid, rc); /* RE-Read Configuration Data */ return dasd_eckd_read_conf(device); } @@ -674,9 +862,9 @@ static int dasd_eckd_check_characteristics(struct dasd_device *device) { struct dasd_eckd_private *private; - struct dasd_uid uid; + struct dasd_block *block; void *rdc_data; - int rc; + int is_known, rc; private = (struct dasd_eckd_private *) device->private; if (private == NULL) { @@ -699,27 +887,54 @@ dasd_eckd_check_characteristics(struct dasd_device *device) /* Read Configuration Data */ rc = dasd_eckd_read_conf(device); if (rc) - return rc; + goto out_err1; /* Generate device unique id and register in devmap */ - rc = dasd_eckd_generate_uid(device, &uid); + rc = dasd_eckd_generate_uid(device, &private->uid); if (rc) - return rc; - rc = dasd_set_uid(device->cdev, &uid); - if (rc == 1) /* new server found */ - rc = dasd_eckd_validate_server(device, &uid); + goto out_err1; + dasd_set_uid(device->cdev, &private->uid); + + if (private->uid.type == UA_BASE_DEVICE) { + block = dasd_alloc_block(); + if (IS_ERR(block)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "could not allocate dasd block structure"); + rc = PTR_ERR(block); + goto out_err1; + } + device->block = block; + block->base = device; + } + + /* register lcu with alias handling, enable PAV if this is a new lcu */ + is_known = dasd_alias_make_device_known_to_lcu(device); + if (is_known < 0) { + rc = is_known; + goto out_err2; + } + if (!is_known) { + /* new lcu found */ + rc = dasd_eckd_validate_server(device); /* will switch pav on */ + if (rc) + goto out_err3; + } + + /* Read Feature Codes */ + rc = dasd_eckd_read_features(device); if (rc) - return rc; + goto out_err3; /* Read Device Characteristics */ rdc_data = (void *) &(private->rdc_data); memset(rdc_data, 0, sizeof(rdc_data)); rc = dasd_generic_read_dev_chars(device, "ECKD", &rdc_data, 64); - if (rc) + if (rc) { DEV_MESSAGE(KERN_WARNING, device, "Read device characteristics returned " "rc=%d", rc); - + goto out_err3; + } DEV_MESSAGE(KERN_INFO, device, "%04X/%02X(CU:%04X/%02X) Cyl:%d Head:%d Sec:%d", private->rdc_data.dev_type, @@ -729,9 +944,24 @@ dasd_eckd_check_characteristics(struct dasd_device *device) private->rdc_data.no_cyl, private->rdc_data.trk_per_cyl, private->rdc_data.sec_per_trk); + return 0; + +out_err3: + dasd_alias_disconnect_device_from_lcu(device); +out_err2: + dasd_free_block(device->block); + device->block = NULL; +out_err1: + kfree(device->private); + device->private = NULL; return rc; } +static void dasd_eckd_uncheck_device(struct dasd_device *device) +{ + dasd_alias_disconnect_device_from_lcu(device); +} + static struct dasd_ccw_req * dasd_eckd_analysis_ccw(struct dasd_device *device) { @@ -755,7 +985,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device) /* Define extent for the first 3 tracks. */ define_extent(ccw++, cqr->data, 0, 2, DASD_ECKD_CCW_READ_COUNT, device); - LO_data = cqr->data + sizeof (struct DE_eckd_data); + LO_data = cqr->data + sizeof(struct DE_eckd_data); /* Locate record for the first 4 records on track 0. */ ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, LO_data++, 0, 0, 4, @@ -783,7 +1013,9 @@ dasd_eckd_analysis_ccw(struct dasd_device *device) ccw->count = 8; ccw->cda = (__u32)(addr_t) count_data; - cqr->device = device; + cqr->block = NULL; + cqr->startdev = device; + cqr->memdev = device; cqr->retries = 0; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; @@ -803,7 +1035,7 @@ dasd_eckd_analysis_callback(struct dasd_ccw_req *init_cqr, void *data) struct dasd_eckd_private *private; struct dasd_device *device; - device = init_cqr->device; + device = init_cqr->startdev; private = (struct dasd_eckd_private *) device->private; private->init_cqr_status = init_cqr->status; dasd_sfree_request(init_cqr, device); @@ -811,13 +1043,13 @@ dasd_eckd_analysis_callback(struct dasd_ccw_req *init_cqr, void *data) } static int -dasd_eckd_start_analysis(struct dasd_device *device) +dasd_eckd_start_analysis(struct dasd_block *block) { struct dasd_eckd_private *private; struct dasd_ccw_req *init_cqr; - private = (struct dasd_eckd_private *) device->private; - init_cqr = dasd_eckd_analysis_ccw(device); + private = (struct dasd_eckd_private *) block->base->private; + init_cqr = dasd_eckd_analysis_ccw(block->base); if (IS_ERR(init_cqr)) return PTR_ERR(init_cqr); init_cqr->callback = dasd_eckd_analysis_callback; @@ -828,13 +1060,15 @@ dasd_eckd_start_analysis(struct dasd_device *device) } static int -dasd_eckd_end_analysis(struct dasd_device *device) +dasd_eckd_end_analysis(struct dasd_block *block) { + struct dasd_device *device; struct dasd_eckd_private *private; struct eckd_count *count_area; unsigned int sb, blk_per_trk; int status, i; + device = block->base; private = (struct dasd_eckd_private *) device->private; status = private->init_cqr_status; private->init_cqr_status = -1; @@ -846,7 +1080,7 @@ dasd_eckd_end_analysis(struct dasd_device *device) private->uses_cdl = 1; /* Calculate number of blocks/records per track. */ - blk_per_trk = recs_per_track(&private->rdc_data, 0, device->bp_block); + blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block); /* Check Track 0 for Compatible Disk Layout */ count_area = NULL; for (i = 0; i < 3; i++) { @@ -876,56 +1110,65 @@ dasd_eckd_end_analysis(struct dasd_device *device) if (count_area != NULL && count_area->kl == 0) { /* we found notthing violating our disk layout */ if (dasd_check_blocksize(count_area->dl) == 0) - device->bp_block = count_area->dl; + block->bp_block = count_area->dl; } - if (device->bp_block == 0) { + if (block->bp_block == 0) { DEV_MESSAGE(KERN_WARNING, device, "%s", "Volume has incompatible disk layout"); return -EMEDIUMTYPE; } - device->s2b_shift = 0; /* bits to shift 512 to get a block */ - for (sb = 512; sb < device->bp_block; sb = sb << 1) - device->s2b_shift++; + block->s2b_shift = 0; /* bits to shift 512 to get a block */ + for (sb = 512; sb < block->bp_block; sb = sb << 1) + block->s2b_shift++; - blk_per_trk = recs_per_track(&private->rdc_data, 0, device->bp_block); - device->blocks = (private->rdc_data.no_cyl * + blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block); + block->blocks = (private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl * blk_per_trk); DEV_MESSAGE(KERN_INFO, device, "(%dkB blks): %dkB at %dkB/trk %s", - (device->bp_block >> 10), + (block->bp_block >> 10), ((private->rdc_data.no_cyl * private->rdc_data.trk_per_cyl * - blk_per_trk * (device->bp_block >> 9)) >> 1), - ((blk_per_trk * device->bp_block) >> 10), + blk_per_trk * (block->bp_block >> 9)) >> 1), + ((blk_per_trk * block->bp_block) >> 10), private->uses_cdl ? "compatible disk layout" : "linux disk layout"); return 0; } -static int -dasd_eckd_do_analysis(struct dasd_device *device) +static int dasd_eckd_do_analysis(struct dasd_block *block) { struct dasd_eckd_private *private; - private = (struct dasd_eckd_private *) device->private; + private = (struct dasd_eckd_private *) block->base->private; if (private->init_cqr_status < 0) - return dasd_eckd_start_analysis(device); + return dasd_eckd_start_analysis(block); else - return dasd_eckd_end_analysis(device); + return dasd_eckd_end_analysis(block); } +static int dasd_eckd_ready_to_online(struct dasd_device *device) +{ + return dasd_alias_add_device(device); +}; + +static int dasd_eckd_online_to_ready(struct dasd_device *device) +{ + return dasd_alias_remove_device(device); +}; + static int -dasd_eckd_fill_geometry(struct dasd_device *device, struct hd_geometry *geo) +dasd_eckd_fill_geometry(struct dasd_block *block, struct hd_geometry *geo) { struct dasd_eckd_private *private; - private = (struct dasd_eckd_private *) device->private; - if (dasd_check_blocksize(device->bp_block) == 0) { + private = (struct dasd_eckd_private *) block->base->private; + if (dasd_check_blocksize(block->bp_block) == 0) { geo->sectors = recs_per_track(&private->rdc_data, - 0, device->bp_block); + 0, block->bp_block); } geo->cylinders = private->rdc_data.no_cyl; geo->heads = private->rdc_data.trk_per_cyl; @@ -1037,7 +1280,7 @@ dasd_eckd_format_device(struct dasd_device * device, locate_record(ccw++, (struct LO_eckd_data *) data, fdata->start_unit, 0, rpt + 1, DASD_ECKD_CCW_WRITE_RECORD_ZERO, device, - device->bp_block); + device->block->bp_block); data += sizeof(struct LO_eckd_data); break; case 0x04: /* Invalidate track. */ @@ -1110,43 +1353,28 @@ dasd_eckd_format_device(struct dasd_device * device, ccw++; } } - fcp->device = device; - fcp->retries = 2; /* set retry counter to enable ERP */ + fcp->startdev = device; + fcp->memdev = device; + clear_bit(DASD_CQR_FLAGS_USE_ERP, &fcp->flags); + fcp->retries = 5; /* set retry counter to enable default ERP */ fcp->buildclk = get_clock(); fcp->status = DASD_CQR_FILLED; return fcp; } -static dasd_era_t -dasd_eckd_examine_error(struct dasd_ccw_req * cqr, struct irb * irb) +static void dasd_eckd_handle_terminated_request(struct dasd_ccw_req *cqr) { - struct dasd_device *device = (struct dasd_device *) cqr->device; - struct ccw_device *cdev = device->cdev; - - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - - switch (cdev->id.cu_type) { - case 0x3990: - case 0x2105: - case 0x2107: - case 0x1750: - return dasd_3990_erp_examine(cqr, irb); - case 0x9343: - return dasd_9343_erp_examine(cqr, irb); - case 0x3880: - default: - DEV_MESSAGE(KERN_WARNING, device, "%s", - "default (unknown CU type) - RECOVERABLE return"); - return dasd_era_recover; + cqr->status = DASD_CQR_FILLED; + if (cqr->block && (cqr->startdev != cqr->block->base)) { + dasd_eckd_reset_ccw_to_base_io(cqr); + cqr->startdev = cqr->block->base; } -} +}; static dasd_erp_fn_t dasd_eckd_erp_action(struct dasd_ccw_req * cqr) { - struct dasd_device *device = (struct dasd_device *) cqr->device; + struct dasd_device *device = (struct dasd_device *) cqr->startdev; struct ccw_device *cdev = device->cdev; switch (cdev->id.cu_type) { @@ -1168,8 +1396,37 @@ dasd_eckd_erp_postaction(struct dasd_ccw_req * cqr) return dasd_default_erp_postaction; } -static struct dasd_ccw_req * -dasd_eckd_build_cp(struct dasd_device * device, struct request *req) + +static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device, + struct irb *irb) +{ + char mask; + + /* first of all check for state change pending interrupt */ + mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; + if ((irb->scsw.dstat & mask) == mask) { + dasd_generic_handle_state_change(device); + return; + } + + /* summary unit check */ + if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && irb->ecw[7] == 0x0D) { + dasd_alias_handle_summary_unit_check(device, irb); + return; + } + + /* just report other unsolicited interrupts */ + DEV_MESSAGE(KERN_DEBUG, device, "%s", + "unsolicited interrupt received"); + device->discipline->dump_sense(device, NULL, irb); + dasd_schedule_device_bh(device); + + return; +}; + +static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, + struct dasd_block *block, + struct request *req) { struct dasd_eckd_private *private; unsigned long *idaws; @@ -1185,8 +1442,11 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) sector_t first_trk, last_trk; unsigned int first_offs, last_offs; unsigned char cmd, rcmd; + int use_prefix; + struct dasd_device *basedev; - private = (struct dasd_eckd_private *) device->private; + basedev = block->base; + private = (struct dasd_eckd_private *) basedev->private; if (rq_data_dir(req) == READ) cmd = DASD_ECKD_CCW_READ_MT; else if (rq_data_dir(req) == WRITE) @@ -1194,13 +1454,13 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) else return ERR_PTR(-EINVAL); /* Calculate number of blocks/records per track. */ - blksize = device->bp_block; + blksize = block->bp_block; blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); /* Calculate record id of first and last block. */ - first_rec = first_trk = req->sector >> device->s2b_shift; + first_rec = first_trk = req->sector >> block->s2b_shift; first_offs = sector_div(first_trk, blk_per_trk); last_rec = last_trk = - (req->sector + req->nr_sectors - 1) >> device->s2b_shift; + (req->sector + req->nr_sectors - 1) >> block->s2b_shift; last_offs = sector_div(last_trk, blk_per_trk); /* Check struct bio and count the number of blocks for the request. */ count = 0; @@ -1209,20 +1469,33 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) if (bv->bv_len & (blksize - 1)) /* Eckd can only do full blocks. */ return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); + count += bv->bv_len >> (block->s2b_shift + 9); #if defined(CONFIG_64BIT) if (idal_is_needed (page_address(bv->bv_page), bv->bv_len)) - cidaw += bv->bv_len >> (device->s2b_shift + 9); + cidaw += bv->bv_len >> (block->s2b_shift + 9); #endif } /* Paranoia. */ if (count != last_rec - first_rec + 1) return ERR_PTR(-EINVAL); - /* 1x define extent + 1x locate record + number of blocks */ - cplength = 2 + count; - /* 1x define extent + 1x locate record + cidaws*sizeof(long) */ - datasize = sizeof(struct DE_eckd_data) + sizeof(struct LO_eckd_data) + - cidaw * sizeof(unsigned long); + + /* use the prefix command if available */ + use_prefix = private->features.feature[8] & 0x01; + if (use_prefix) { + /* 1x prefix + number of blocks */ + cplength = 2 + count; + /* 1x prefix + cidaws*sizeof(long) */ + datasize = sizeof(struct PFX_eckd_data) + + sizeof(struct LO_eckd_data) + + cidaw * sizeof(unsigned long); + } else { + /* 1x define extent + 1x locate record + number of blocks */ + cplength = 2 + count; + /* 1x define extent + 1x locate record + cidaws*sizeof(long) */ + datasize = sizeof(struct DE_eckd_data) + + sizeof(struct LO_eckd_data) + + cidaw * sizeof(unsigned long); + } /* Find out the number of additional locate record ccws for cdl. */ if (private->uses_cdl && first_rec < 2*blk_per_trk) { if (last_rec >= 2*blk_per_trk) @@ -1232,26 +1505,42 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) } /* Allocate the ccw request. */ cqr = dasd_smalloc_request(dasd_eckd_discipline.name, - cplength, datasize, device); + cplength, datasize, startdev); if (IS_ERR(cqr)) return cqr; ccw = cqr->cpaddr; - /* First ccw is define extent. */ - if (define_extent(ccw++, cqr->data, first_trk, - last_trk, cmd, device) == -EAGAIN) { - /* Clock not in sync and XRC is enabled. Try again later. */ - dasd_sfree_request(cqr, device); - return ERR_PTR(-EAGAIN); + /* First ccw is define extent or prefix. */ + if (use_prefix) { + if (prefix(ccw++, cqr->data, first_trk, + last_trk, cmd, basedev, startdev) == -EAGAIN) { + /* Clock not in sync and XRC is enabled. + * Try again later. + */ + dasd_sfree_request(cqr, startdev); + return ERR_PTR(-EAGAIN); + } + idaws = (unsigned long *) (cqr->data + + sizeof(struct PFX_eckd_data)); + } else { + if (define_extent(ccw++, cqr->data, first_trk, + last_trk, cmd, startdev) == -EAGAIN) { + /* Clock not in sync and XRC is enabled. + * Try again later. + */ + dasd_sfree_request(cqr, startdev); + return ERR_PTR(-EAGAIN); + } + idaws = (unsigned long *) (cqr->data + + sizeof(struct DE_eckd_data)); } /* Build locate_record+read/write/ccws. */ - idaws = (unsigned long *) (cqr->data + sizeof(struct DE_eckd_data)); LO_data = (struct LO_eckd_data *) (idaws + cidaw); recid = first_rec; if (private->uses_cdl == 0 || recid > 2*blk_per_trk) { /* Only standard blocks so there is just one locate record. */ ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, LO_data++, first_trk, first_offs + 1, - last_rec - recid + 1, cmd, device, blksize); + last_rec - recid + 1, cmd, basedev, blksize); } rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; @@ -1281,7 +1570,7 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, LO_data++, trkid, recoffs + 1, - 1, rcmd, device, count); + 1, rcmd, basedev, count); } /* Locate record for standard blocks ? */ if (private->uses_cdl && recid == 2*blk_per_trk) { @@ -1289,7 +1578,7 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) locate_record(ccw++, LO_data++, trkid, recoffs + 1, last_rec - recid + 1, - cmd, device, count); + cmd, basedev, count); } /* Read/write ccw. */ ccw[-1].flags |= CCW_FLAG_CC; @@ -1310,7 +1599,9 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) } if (req->cmd_flags & REQ_FAILFAST) set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->device = device; + cqr->startdev = startdev; + cqr->memdev = startdev; + cqr->block = block; cqr->expires = 5 * 60 * HZ; /* 5 minutes */ cqr->lpm = private->path_data.ppm; cqr->retries = 256; @@ -1333,10 +1624,10 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) if (!dasd_page_cache) goto out; - private = (struct dasd_eckd_private *) cqr->device->private; - blksize = cqr->device->bp_block; + private = (struct dasd_eckd_private *) cqr->block->base->private; + blksize = cqr->block->bp_block; blk_per_trk = recs_per_track(&private->rdc_data, 0, blksize); - recid = req->sector >> cqr->device->s2b_shift; + recid = req->sector >> cqr->block->s2b_shift; ccw = cqr->cpaddr; /* Skip over define extent & locate record. */ ccw++; @@ -1367,10 +1658,71 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) } out: status = cqr->status == DASD_CQR_DONE; - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return status; } +/* + * Modify ccw chain in cqr so it can be started on a base device. + * + * Note that this is not enough to restart the cqr! + * Either reset cqr->startdev as well (summary unit check handling) + * or restart via separate cqr (as in ERP handling). + */ +void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *cqr) +{ + struct ccw1 *ccw; + struct PFX_eckd_data *pfxdata; + + ccw = cqr->cpaddr; + pfxdata = cqr->data; + + if (ccw->cmd_code == DASD_ECKD_CCW_PFX) { + pfxdata->validity.verify_base = 0; + pfxdata->validity.hyper_pav = 0; + } +} + +#define DASD_ECKD_CHANQ_MAX_SIZE 4 + +static struct dasd_ccw_req *dasd_eckd_build_alias_cp(struct dasd_device *base, + struct dasd_block *block, + struct request *req) +{ + struct dasd_eckd_private *private; + struct dasd_device *startdev; + unsigned long flags; + struct dasd_ccw_req *cqr; + + startdev = dasd_alias_get_start_dev(base); + if (!startdev) + startdev = base; + private = (struct dasd_eckd_private *) startdev->private; + if (private->count >= DASD_ECKD_CHANQ_MAX_SIZE) + return ERR_PTR(-EBUSY); + + spin_lock_irqsave(get_ccwdev_lock(startdev->cdev), flags); + private->count++; + cqr = dasd_eckd_build_cp(startdev, block, req); + if (IS_ERR(cqr)) + private->count--; + spin_unlock_irqrestore(get_ccwdev_lock(startdev->cdev), flags); + return cqr; +} + +static int dasd_eckd_free_alias_cp(struct dasd_ccw_req *cqr, + struct request *req) +{ + struct dasd_eckd_private *private; + unsigned long flags; + + spin_lock_irqsave(get_ccwdev_lock(cqr->memdev->cdev), flags); + private = (struct dasd_eckd_private *) cqr->memdev->private; + private->count--; + spin_unlock_irqrestore(get_ccwdev_lock(cqr->memdev->cdev), flags); + return dasd_eckd_free_cp(cqr, req); +} + static int dasd_eckd_fill_info(struct dasd_device * device, struct dasd_information2_t * info) @@ -1384,9 +1736,9 @@ dasd_eckd_fill_info(struct dasd_device * device, info->characteristics_size = sizeof(struct dasd_eckd_characteristics); memcpy(info->characteristics, &private->rdc_data, sizeof(struct dasd_eckd_characteristics)); - info->confdata_size = sizeof (struct dasd_eckd_confdata); + info->confdata_size = sizeof(struct dasd_eckd_confdata); memcpy(info->configuration_data, &private->conf_data, - sizeof (struct dasd_eckd_confdata)); + sizeof(struct dasd_eckd_confdata)); return 0; } @@ -1419,7 +1771,8 @@ dasd_eckd_release(struct dasd_device *device) cqr->cpaddr->flags |= CCW_FLAG_SLI; cqr->cpaddr->count = 32; cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); cqr->retries = 2; /* set retry counter to enable basic ERP */ @@ -1429,7 +1782,7 @@ dasd_eckd_release(struct dasd_device *device) rc = dasd_sleep_on_immediatly(cqr); - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return rc; } @@ -1459,7 +1812,8 @@ dasd_eckd_reserve(struct dasd_device *device) cqr->cpaddr->flags |= CCW_FLAG_SLI; cqr->cpaddr->count = 32; cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); cqr->retries = 2; /* set retry counter to enable basic ERP */ @@ -1469,7 +1823,7 @@ dasd_eckd_reserve(struct dasd_device *device) rc = dasd_sleep_on_immediatly(cqr); - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return rc; } @@ -1498,7 +1852,8 @@ dasd_eckd_steal_lock(struct dasd_device *device) cqr->cpaddr->flags |= CCW_FLAG_SLI; cqr->cpaddr->count = 32; cqr->cpaddr->cda = (__u32)(addr_t) cqr->data; - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); cqr->retries = 2; /* set retry counter to enable basic ERP */ @@ -1508,7 +1863,7 @@ dasd_eckd_steal_lock(struct dasd_device *device) rc = dasd_sleep_on_immediatly(cqr); - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return rc; } @@ -1526,52 +1881,52 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp) cqr = dasd_smalloc_request(dasd_eckd_discipline.name, 1 /* PSF */ + 1 /* RSSD */ , - (sizeof (struct dasd_psf_prssd_data) + - sizeof (struct dasd_rssd_perf_stats_t)), + (sizeof(struct dasd_psf_prssd_data) + + sizeof(struct dasd_rssd_perf_stats_t)), device); if (IS_ERR(cqr)) { DEV_MESSAGE(KERN_WARNING, device, "%s", "Could not allocate initialization request"); return PTR_ERR(cqr); } - cqr->device = device; + cqr->startdev = device; + cqr->memdev = device; cqr->retries = 0; cqr->expires = 10 * HZ; /* Prepare for Read Subsystem Data */ prssdp = (struct dasd_psf_prssd_data *) cqr->data; - memset(prssdp, 0, sizeof (struct dasd_psf_prssd_data)); + memset(prssdp, 0, sizeof(struct dasd_psf_prssd_data)); prssdp->order = PSF_ORDER_PRSSD; - prssdp->suborder = 0x01; /* Perfomance Statistics */ + prssdp->suborder = 0x01; /* Performance Statistics */ prssdp->varies[1] = 0x01; /* Perf Statistics for the Subsystem */ ccw = cqr->cpaddr; ccw->cmd_code = DASD_ECKD_CCW_PSF; - ccw->count = sizeof (struct dasd_psf_prssd_data); + ccw->count = sizeof(struct dasd_psf_prssd_data); ccw->flags |= CCW_FLAG_CC; ccw->cda = (__u32)(addr_t) prssdp; /* Read Subsystem Data - Performance Statistics */ stats = (struct dasd_rssd_perf_stats_t *) (prssdp + 1); - memset(stats, 0, sizeof (struct dasd_rssd_perf_stats_t)); + memset(stats, 0, sizeof(struct dasd_rssd_perf_stats_t)); ccw++; ccw->cmd_code = DASD_ECKD_CCW_RSSD; - ccw->count = sizeof (struct dasd_rssd_perf_stats_t); + ccw->count = sizeof(struct dasd_rssd_perf_stats_t); ccw->cda = (__u32)(addr_t) stats; cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; rc = dasd_sleep_on(cqr); if (rc == 0) { - /* Prepare for Read Subsystem Data */ prssdp = (struct dasd_psf_prssd_data *) cqr->data; stats = (struct dasd_rssd_perf_stats_t *) (prssdp + 1); if (copy_to_user(argp, stats, sizeof(struct dasd_rssd_perf_stats_t))) rc = -EFAULT; } - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return rc; } @@ -1594,7 +1949,7 @@ dasd_eckd_get_attrib(struct dasd_device *device, void __user *argp) rc = 0; if (copy_to_user(argp, (long *) &attrib, - sizeof (struct attrib_data_t))) + sizeof(struct attrib_data_t))) rc = -EFAULT; return rc; @@ -1627,8 +1982,10 @@ dasd_eckd_set_attrib(struct dasd_device *device, void __user *argp) } static int -dasd_eckd_ioctl(struct dasd_device *device, unsigned int cmd, void __user *argp) +dasd_eckd_ioctl(struct dasd_block *block, unsigned int cmd, void __user *argp) { + struct dasd_device *device = block->base; + switch (cmd) { case BIODASDGATTR: return dasd_eckd_get_attrib(device, argp); @@ -1685,9 +2042,8 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) * Print sense data and related channel program. * Parts are printed because printk buffer is only 1024 bytes. */ -static void -dasd_eckd_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, - struct irb *irb) +static void dasd_eckd_dump_sense(struct dasd_device *device, + struct dasd_ccw_req *req, struct irb *irb) { char *page; struct ccw1 *first, *last, *fail, *from, *to; @@ -1743,37 +2099,40 @@ dasd_eckd_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, } printk("%s", page); - /* dump the Channel Program (max 140 Bytes per line) */ - /* Count CCW and print first CCWs (maximum 1024 % 140 = 7) */ - first = req->cpaddr; - for (last = first; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); - to = min(first + 6, last); - len = sprintf(page, KERN_ERR PRINTK_HEADER - " Related CP in req: %p\n", req); - dasd_eckd_dump_ccw_range(first, to, page + len); - printk("%s", page); + if (req) { + /* req == NULL for unsolicited interrupts */ + /* dump the Channel Program (max 140 Bytes per line) */ + /* Count CCW and print first CCWs (maximum 1024 % 140 = 7) */ + first = req->cpaddr; + for (last = first; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); + to = min(first + 6, last); + len = sprintf(page, KERN_ERR PRINTK_HEADER + " Related CP in req: %p\n", req); + dasd_eckd_dump_ccw_range(first, to, page + len); + printk("%s", page); - /* print failing CCW area (maximum 4) */ - /* scsw->cda is either valid or zero */ - len = 0; - from = ++to; - fail = (struct ccw1 *)(addr_t) irb->scsw.cpa; /* failing CCW */ - if (from < fail - 2) { - from = fail - 2; /* there is a gap - print header */ - len += sprintf(page, KERN_ERR PRINTK_HEADER "......\n"); - } - to = min(fail + 1, last); - len += dasd_eckd_dump_ccw_range(from, to, page + len); - - /* print last CCWs (maximum 2) */ - from = max(from, ++to); - if (from < last - 1) { - from = last - 1; /* there is a gap - print header */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); + /* print failing CCW area (maximum 4) */ + /* scsw->cda is either valid or zero */ + len = 0; + from = ++to; + fail = (struct ccw1 *)(addr_t) irb->scsw.cpa; /* failing CCW */ + if (from < fail - 2) { + from = fail - 2; /* there is a gap - print header */ + len += sprintf(page, KERN_ERR PRINTK_HEADER "......\n"); + } + to = min(fail + 1, last); + len += dasd_eckd_dump_ccw_range(from, to, page + len); + + /* print last CCWs (maximum 2) */ + from = max(from, ++to); + if (from < last - 1) { + from = last - 1; /* there is a gap - print header */ + len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); + } + len += dasd_eckd_dump_ccw_range(from, last, page + len); + if (len > 0) + printk("%s", page); } - len += dasd_eckd_dump_ccw_range(from, last, page + len); - if (len > 0) - printk("%s", page); free_page((unsigned long) page); } @@ -1796,16 +2155,20 @@ static struct dasd_discipline dasd_eckd_discipline = { .ebcname = "ECKD", .max_blocks = 240, .check_device = dasd_eckd_check_characteristics, + .uncheck_device = dasd_eckd_uncheck_device, .do_analysis = dasd_eckd_do_analysis, + .ready_to_online = dasd_eckd_ready_to_online, + .online_to_ready = dasd_eckd_online_to_ready, .fill_geometry = dasd_eckd_fill_geometry, .start_IO = dasd_start_IO, .term_IO = dasd_term_IO, + .handle_terminated_request = dasd_eckd_handle_terminated_request, .format_device = dasd_eckd_format_device, - .examine_error = dasd_eckd_examine_error, .erp_action = dasd_eckd_erp_action, .erp_postaction = dasd_eckd_erp_postaction, - .build_cp = dasd_eckd_build_cp, - .free_cp = dasd_eckd_free_cp, + .handle_unsolicited_interrupt = dasd_eckd_handle_unsolicited_interrupt, + .build_cp = dasd_eckd_build_alias_cp, + .free_cp = dasd_eckd_free_alias_cp, .dump_sense = dasd_eckd_dump_sense, .fill_info = dasd_eckd_fill_info, .ioctl = dasd_eckd_ioctl, diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 712ff165013..fc2509c939b 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -39,6 +39,8 @@ #define DASD_ECKD_CCW_READ_CKD_MT 0x9e #define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d #define DASD_ECKD_CCW_RESERVE 0xB4 +#define DASD_ECKD_CCW_PFX 0xE7 +#define DASD_ECKD_CCW_RSCK 0xF9 /* * Perform Subsystem Function / Sub-Orders @@ -137,6 +139,25 @@ struct LO_eckd_data { __u16 length; } __attribute__ ((packed)); +/* Prefix data for format 0x00 and 0x01 */ +struct PFX_eckd_data { + unsigned char format; + struct { + unsigned char define_extend:1; + unsigned char time_stamp:1; + unsigned char verify_base:1; + unsigned char hyper_pav:1; + unsigned char reserved:4; + } __attribute__ ((packed)) validity; + __u8 base_address; + __u8 aux; + __u8 base_lss; + __u8 reserved[7]; + struct DE_eckd_data define_extend; + struct LO_eckd_data locate_record; + __u8 LO_extended_data[4]; +} __attribute__ ((packed)); + struct dasd_eckd_characteristics { __u16 cu_type; struct { @@ -254,7 +275,9 @@ struct dasd_eckd_confdata { } __attribute__ ((packed)) ned; struct { unsigned char flags; /* byte 0 */ - unsigned char res2[7]; /* byte 1- 7 */ + unsigned char res1; /* byte 1 */ + __u16 format; /* byte 2-3 */ + unsigned char res2[4]; /* byte 4-7 */ unsigned char sua_flags; /* byte 8 */ __u8 base_unit_addr; /* byte 9 */ unsigned char res3[22]; /* byte 10-31 */ @@ -343,6 +366,11 @@ struct dasd_eckd_path { __u8 npm; }; +struct dasd_rssd_features { + char feature[256]; +} __attribute__((packed)); + + /* * Perform Subsystem Function - Prepare for Read Subsystem Data */ @@ -365,4 +393,99 @@ struct dasd_psf_ssc_data { unsigned char reserved[59]; } __attribute__((packed)); + +/* + * some structures and definitions for alias handling + */ +struct dasd_unit_address_configuration { + struct { + char ua_type; + char base_ua; + } unit[256]; +} __attribute__((packed)); + + +#define MAX_DEVICES_PER_LCU 256 + +/* flags on the LCU */ +#define NEED_UAC_UPDATE 0x01 +#define UPDATE_PENDING 0x02 + +enum pavtype {NO_PAV, BASE_PAV, HYPER_PAV}; + + +struct alias_root { + struct list_head serverlist; + spinlock_t lock; +}; + +struct alias_server { + struct list_head server; + struct dasd_uid uid; + struct list_head lculist; +}; + +struct summary_unit_check_work_data { + char reason; + struct dasd_device *device; + struct work_struct worker; +}; + +struct read_uac_work_data { + struct dasd_device *device; + struct delayed_work dwork; +}; + +struct alias_lcu { + struct list_head lcu; + struct dasd_uid uid; + enum pavtype pav; + char flags; + spinlock_t lock; + struct list_head grouplist; + struct list_head active_devices; + struct list_head inactive_devices; + struct dasd_unit_address_configuration *uac; + struct summary_unit_check_work_data suc_data; + struct read_uac_work_data ruac_data; + struct dasd_ccw_req *rsu_cqr; +}; + +struct alias_pav_group { + struct list_head group; + struct dasd_uid uid; + struct alias_lcu *lcu; + struct list_head baselist; + struct list_head aliaslist; + struct dasd_device *next; +}; + + +struct dasd_eckd_private { + struct dasd_eckd_characteristics rdc_data; + struct dasd_eckd_confdata conf_data; + struct dasd_eckd_path path_data; + struct eckd_count count_area[5]; + int init_cqr_status; + int uses_cdl; + struct attrib_data_t attrib; /* e.g. cache operations */ + struct dasd_rssd_features features; + + /* alias managemnet */ + struct dasd_uid uid; + struct alias_pav_group *pavgroup; + struct alias_lcu *lcu; + int count; +}; + + + +int dasd_alias_make_device_known_to_lcu(struct dasd_device *); +void dasd_alias_disconnect_device_from_lcu(struct dasd_device *); +int dasd_alias_add_device(struct dasd_device *); +int dasd_alias_remove_device(struct dasd_device *); +struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *); +void dasd_alias_handle_summary_unit_check(struct dasd_device *, struct irb *); +void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *); + #endif /* DASD_ECKD_H */ diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 0c081a664ee..6e53ab606e9 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -336,7 +336,7 @@ static void dasd_eer_write_snss_trigger(struct dasd_device *device, unsigned long flags; struct eerbuffer *eerb; - snss_rc = (cqr->status == DASD_CQR_FAILED) ? -EIO : 0; + snss_rc = (cqr->status == DASD_CQR_DONE) ? 0 : -EIO; if (snss_rc) data_size = 0; else @@ -404,10 +404,11 @@ void dasd_eer_snss(struct dasd_device *device) set_bit(DASD_FLAG_EER_SNSS, &device->flags); return; } + /* cdev is already locked, can't use dasd_add_request_head */ clear_bit(DASD_FLAG_EER_SNSS, &device->flags); cqr->status = DASD_CQR_QUEUED; - list_add(&cqr->list, &device->ccw_queue); - dasd_schedule_bh(device); + list_add(&cqr->devlist, &device->ccw_queue); + dasd_schedule_device_bh(device); } /* @@ -415,7 +416,7 @@ void dasd_eer_snss(struct dasd_device *device) */ static void dasd_eer_snss_cb(struct dasd_ccw_req *cqr, void *data) { - struct dasd_device *device = cqr->device; + struct dasd_device *device = cqr->startdev; unsigned long flags; dasd_eer_write(device, cqr, DASD_EER_STATECHANGE); @@ -458,7 +459,7 @@ int dasd_eer_enable(struct dasd_device *device) if (!cqr) return -ENOMEM; - cqr->device = device; + cqr->startdev = device; cqr->retries = 255; cqr->expires = 10 * HZ; clear_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags); diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c index caa5d91420f..8f10000851a 100644 --- a/drivers/s390/block/dasd_erp.c +++ b/drivers/s390/block/dasd_erp.c @@ -46,6 +46,8 @@ dasd_alloc_erp_request(char *magic, int cplength, int datasize, if (cqr == NULL) return ERR_PTR(-ENOMEM); memset(cqr, 0, sizeof(struct dasd_ccw_req)); + INIT_LIST_HEAD(&cqr->devlist); + INIT_LIST_HEAD(&cqr->blocklist); data = (char *) cqr + ((sizeof(struct dasd_ccw_req) + 7L) & -8L); cqr->cpaddr = NULL; if (cplength > 0) { @@ -66,7 +68,7 @@ dasd_alloc_erp_request(char *magic, int cplength, int datasize, } void -dasd_free_erp_request(struct dasd_ccw_req * cqr, struct dasd_device * device) +dasd_free_erp_request(struct dasd_ccw_req *cqr, struct dasd_device * device) { unsigned long flags; @@ -81,11 +83,11 @@ dasd_free_erp_request(struct dasd_ccw_req * cqr, struct dasd_device * device) * dasd_default_erp_action just retries the current cqr */ struct dasd_ccw_req * -dasd_default_erp_action(struct dasd_ccw_req * cqr) +dasd_default_erp_action(struct dasd_ccw_req *cqr) { struct dasd_device *device; - device = cqr->device; + device = cqr->startdev; /* just retry - there is nothing to save ... I got no sense data.... */ if (cqr->retries > 0) { @@ -93,12 +95,12 @@ dasd_default_erp_action(struct dasd_ccw_req * cqr) "default ERP called (%i retries left)", cqr->retries); cqr->lpm = LPM_ANYPATH; - cqr->status = DASD_CQR_QUEUED; + cqr->status = DASD_CQR_FILLED; } else { DEV_MESSAGE (KERN_WARNING, device, "%s", "default ERP called (NO retry left)"); cqr->status = DASD_CQR_FAILED; - cqr->stopclk = get_clock (); + cqr->stopclk = get_clock(); } return cqr; } /* end dasd_default_erp_action */ @@ -117,15 +119,12 @@ dasd_default_erp_action(struct dasd_ccw_req * cqr) * RETURN VALUES * cqr pointer to the original CQR */ -struct dasd_ccw_req * -dasd_default_erp_postaction(struct dasd_ccw_req * cqr) +struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr) { - struct dasd_device *device; int success; BUG_ON(cqr->refers == NULL || cqr->function == NULL); - device = cqr->device; success = cqr->status == DASD_CQR_DONE; /* free all ERPs - but NOT the original cqr */ @@ -133,10 +132,10 @@ dasd_default_erp_postaction(struct dasd_ccw_req * cqr) struct dasd_ccw_req *refers; refers = cqr->refers; - /* remove the request from the device queue */ - list_del(&cqr->list); + /* remove the request from the block queue */ + list_del(&cqr->blocklist); /* free the finished erp request */ - dasd_free_erp_request(cqr, device); + dasd_free_erp_request(cqr, cqr->memdev); cqr = refers; } @@ -157,7 +156,7 @@ dasd_log_sense(struct dasd_ccw_req *cqr, struct irb *irb) { struct dasd_device *device; - device = cqr->device; + device = cqr->startdev; /* dump sense data */ if (device->discipline && device->discipline->dump_sense) device->discipline->dump_sense(device, cqr, irb); diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 1d95822e0b8..d13ea05089a 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -117,6 +117,7 @@ locate_record(struct ccw1 * ccw, struct LO_fba_data *data, int rw, static int dasd_fba_check_characteristics(struct dasd_device *device) { + struct dasd_block *block; struct dasd_fba_private *private; struct ccw_device *cdev = device->cdev; void *rdc_data; @@ -133,6 +134,16 @@ dasd_fba_check_characteristics(struct dasd_device *device) } device->private = (void *) private; } + block = dasd_alloc_block(); + if (IS_ERR(block)) { + DEV_MESSAGE(KERN_WARNING, device, "%s", + "could not allocate dasd block structure"); + kfree(device->private); + return PTR_ERR(block); + } + device->block = block; + block->base = device; + /* Read Device Characteristics */ rdc_data = (void *) &(private->rdc_data); rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32); @@ -155,60 +166,37 @@ dasd_fba_check_characteristics(struct dasd_device *device) return 0; } -static int -dasd_fba_do_analysis(struct dasd_device *device) +static int dasd_fba_do_analysis(struct dasd_block *block) { struct dasd_fba_private *private; int sb, rc; - private = (struct dasd_fba_private *) device->private; + private = (struct dasd_fba_private *) block->base->private; rc = dasd_check_blocksize(private->rdc_data.blk_size); if (rc) { - DEV_MESSAGE(KERN_INFO, device, "unknown blocksize %d", + DEV_MESSAGE(KERN_INFO, block->base, "unknown blocksize %d", private->rdc_data.blk_size); return rc; } - device->blocks = private->rdc_data.blk_bdsa; - device->bp_block = private->rdc_data.blk_size; - device->s2b_shift = 0; /* bits to shift 512 to get a block */ + block->blocks = private->rdc_data.blk_bdsa; + block->bp_block = private->rdc_data.blk_size; + block->s2b_shift = 0; /* bits to shift 512 to get a block */ for (sb = 512; sb < private->rdc_data.blk_size; sb = sb << 1) - device->s2b_shift++; + block->s2b_shift++; return 0; } -static int -dasd_fba_fill_geometry(struct dasd_device *device, struct hd_geometry *geo) +static int dasd_fba_fill_geometry(struct dasd_block *block, + struct hd_geometry *geo) { - if (dasd_check_blocksize(device->bp_block) != 0) + if (dasd_check_blocksize(block->bp_block) != 0) return -EINVAL; - geo->cylinders = (device->blocks << device->s2b_shift) >> 10; + geo->cylinders = (block->blocks << block->s2b_shift) >> 10; geo->heads = 16; - geo->sectors = 128 >> device->s2b_shift; + geo->sectors = 128 >> block->s2b_shift; return 0; } -static dasd_era_t -dasd_fba_examine_error(struct dasd_ccw_req * cqr, struct irb * irb) -{ - struct dasd_device *device; - struct ccw_device *cdev; - - device = (struct dasd_device *) cqr->device; - if (irb->scsw.cstat == 0x00 && - irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) - return dasd_era_none; - - cdev = device->cdev; - switch (cdev->id.dev_type) { - case 0x3370: - return dasd_3370_erp_examine(cqr, irb); - case 0x9336: - return dasd_9336_erp_examine(cqr, irb); - default: - return dasd_era_recover; - } -} - static dasd_erp_fn_t dasd_fba_erp_action(struct dasd_ccw_req * cqr) { @@ -221,13 +209,34 @@ dasd_fba_erp_postaction(struct dasd_ccw_req * cqr) if (cqr->function == dasd_default_erp_action) return dasd_default_erp_postaction; - DEV_MESSAGE(KERN_WARNING, cqr->device, "unknown ERP action %p", + DEV_MESSAGE(KERN_WARNING, cqr->startdev, "unknown ERP action %p", cqr->function); return NULL; } -static struct dasd_ccw_req * -dasd_fba_build_cp(struct dasd_device * device, struct request *req) +static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device, + struct irb *irb) +{ + char mask; + + /* first of all check for state change pending interrupt */ + mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; + if ((irb->scsw.dstat & mask) == mask) { + dasd_generic_handle_state_change(device); + return; + } + + /* check for unsolicited interrupts */ + DEV_MESSAGE(KERN_DEBUG, device, "%s", + "unsolicited interrupt received"); + device->discipline->dump_sense(device, NULL, irb); + dasd_schedule_device_bh(device); + return; +}; + +static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev, + struct dasd_block *block, + struct request *req) { struct dasd_fba_private *private; unsigned long *idaws; @@ -242,17 +251,17 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) unsigned int blksize, off; unsigned char cmd; - private = (struct dasd_fba_private *) device->private; + private = (struct dasd_fba_private *) block->base->private; if (rq_data_dir(req) == READ) { cmd = DASD_FBA_CCW_READ; } else if (rq_data_dir(req) == WRITE) { cmd = DASD_FBA_CCW_WRITE; } else return ERR_PTR(-EINVAL); - blksize = device->bp_block; + blksize = block->bp_block; /* Calculate record id of first and last block. */ - first_rec = req->sector >> device->s2b_shift; - last_rec = (req->sector + req->nr_sectors - 1) >> device->s2b_shift; + first_rec = req->sector >> block->s2b_shift; + last_rec = (req->sector + req->nr_sectors - 1) >> block->s2b_shift; /* Check struct bio and count the number of blocks for the request. */ count = 0; cidaw = 0; @@ -260,7 +269,7 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) if (bv->bv_len & (blksize - 1)) /* Fba can only do full blocks. */ return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); + count += bv->bv_len >> (block->s2b_shift + 9); #if defined(CONFIG_64BIT) if (idal_is_needed (page_address(bv->bv_page), bv->bv_len)) cidaw += bv->bv_len / blksize; @@ -284,13 +293,13 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) } /* Allocate the ccw request. */ cqr = dasd_smalloc_request(dasd_fba_discipline.name, - cplength, datasize, device); + cplength, datasize, memdev); if (IS_ERR(cqr)) return cqr; ccw = cqr->cpaddr; /* First ccw is define extent. */ define_extent(ccw++, cqr->data, rq_data_dir(req), - device->bp_block, req->sector, req->nr_sectors); + block->bp_block, req->sector, req->nr_sectors); /* Build locate_record + read/write ccws. */ idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data)); LO_data = (struct LO_fba_data *) (idaws + cidaw); @@ -326,7 +335,7 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) ccw[-1].flags |= CCW_FLAG_CC; } ccw->cmd_code = cmd; - ccw->count = device->bp_block; + ccw->count = block->bp_block; if (idal_is_needed(dst, blksize)) { ccw->cda = (__u32)(addr_t) idaws; ccw->flags = CCW_FLAG_IDA; @@ -342,7 +351,9 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) } if (req->cmd_flags & REQ_FAILFAST) set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); - cqr->device = device; + cqr->startdev = memdev; + cqr->memdev = memdev; + cqr->block = block; cqr->expires = 5 * 60 * HZ; /* 5 minutes */ cqr->retries = 32; cqr->buildclk = get_clock(); @@ -363,8 +374,8 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req) if (!dasd_page_cache) goto out; - private = (struct dasd_fba_private *) cqr->device->private; - blksize = cqr->device->bp_block; + private = (struct dasd_fba_private *) cqr->block->base->private; + blksize = cqr->block->bp_block; ccw = cqr->cpaddr; /* Skip over define extent & locate record. */ ccw++; @@ -394,10 +405,15 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req) } out: status = cqr->status == DASD_CQR_DONE; - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); return status; } +static void dasd_fba_handle_terminated_request(struct dasd_ccw_req *cqr) +{ + cqr->status = DASD_CQR_FILLED; +}; + static int dasd_fba_fill_info(struct dasd_device * device, struct dasd_information2_t * info) @@ -546,9 +562,10 @@ static struct dasd_discipline dasd_fba_discipline = { .fill_geometry = dasd_fba_fill_geometry, .start_IO = dasd_start_IO, .term_IO = dasd_term_IO, - .examine_error = dasd_fba_examine_error, + .handle_terminated_request = dasd_fba_handle_terminated_request, .erp_action = dasd_fba_erp_action, .erp_postaction = dasd_fba_erp_postaction, + .handle_unsolicited_interrupt = dasd_fba_handle_unsolicited_interrupt, .build_cp = dasd_fba_build_cp, .free_cp = dasd_fba_free_cp, .dump_sense = dasd_fba_dump_sense, diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 47ba4462708..aee6565aaf9 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -25,14 +25,15 @@ /* * Allocate and register gendisk structure for device. */ -int -dasd_gendisk_alloc(struct dasd_device *device) +int dasd_gendisk_alloc(struct dasd_block *block) { struct gendisk *gdp; + struct dasd_device *base; int len; /* Make sure the minor for this device exists. */ - if (device->devindex >= DASD_PER_MAJOR) + base = block->base; + if (base->devindex >= DASD_PER_MAJOR) return -EBUSY; gdp = alloc_disk(1 << DASD_PARTN_BITS); @@ -41,9 +42,9 @@ dasd_gendisk_alloc(struct dasd_device *device) /* Initialize gendisk structure. */ gdp->major = DASD_MAJOR; - gdp->first_minor = device->devindex << DASD_PARTN_BITS; + gdp->first_minor = base->devindex << DASD_PARTN_BITS; gdp->fops = &dasd_device_operations; - gdp->driverfs_dev = &device->cdev->dev; + gdp->driverfs_dev = &base->cdev->dev; /* * Set device name. @@ -53,53 +54,51 @@ dasd_gendisk_alloc(struct dasd_device *device) * dasdaaaa - dasdzzzz : 456976 devices, added up = 475252 */ len = sprintf(gdp->disk_name, "dasd"); - if (device->devindex > 25) { - if (device->devindex > 701) { - if (device->devindex > 18277) + if (base->devindex > 25) { + if (base->devindex > 701) { + if (base->devindex > 18277) len += sprintf(gdp->disk_name + len, "%c", - 'a'+(((device->devindex-18278) + 'a'+(((base->devindex-18278) /17576)%26)); len += sprintf(gdp->disk_name + len, "%c", - 'a'+(((device->devindex-702)/676)%26)); + 'a'+(((base->devindex-702)/676)%26)); } len += sprintf(gdp->disk_name + len, "%c", - 'a'+(((device->devindex-26)/26)%26)); + 'a'+(((base->devindex-26)/26)%26)); } - len += sprintf(gdp->disk_name + len, "%c", 'a'+(device->devindex%26)); + len += sprintf(gdp->disk_name + len, "%c", 'a'+(base->devindex%26)); - if (device->features & DASD_FEATURE_READONLY) + if (block->base->features & DASD_FEATURE_READONLY) set_disk_ro(gdp, 1); - gdp->private_data = device; - gdp->queue = device->request_queue; - device->gdp = gdp; - set_capacity(device->gdp, 0); - add_disk(device->gdp); + gdp->private_data = block; + gdp->queue = block->request_queue; + block->gdp = gdp; + set_capacity(block->gdp, 0); + add_disk(block->gdp); return 0; } /* * Unregister and free gendisk structure for device. */ -void -dasd_gendisk_free(struct dasd_device *device) +void dasd_gendisk_free(struct dasd_block *block) { - if (device->gdp) { - del_gendisk(device->gdp); - device->gdp->queue = NULL; - put_disk(device->gdp); - device->gdp = NULL; + if (block->gdp) { + del_gendisk(block->gdp); + block->gdp->queue = NULL; + put_disk(block->gdp); + block->gdp = NULL; } } /* * Trigger a partition detection. */ -int -dasd_scan_partitions(struct dasd_device * device) +int dasd_scan_partitions(struct dasd_block *block) { struct block_device *bdev; - bdev = bdget_disk(device->gdp, 0); + bdev = bdget_disk(block->gdp, 0); if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0) return -ENODEV; /* @@ -117,7 +116,7 @@ dasd_scan_partitions(struct dasd_device * device) * is why the assignment to device->bdev is done AFTER * the BLKRRPART ioctl. */ - device->bdev = bdev; + block->bdev = bdev; return 0; } @@ -125,8 +124,7 @@ dasd_scan_partitions(struct dasd_device * device) * Remove all inodes in the system for a device, delete the * partitions and make device unusable by setting its size to zero. */ -void -dasd_destroy_partitions(struct dasd_device * device) +void dasd_destroy_partitions(struct dasd_block *block) { /* The two structs have 168/176 byte on 31/64 bit. */ struct blkpg_partition bpart; @@ -137,8 +135,8 @@ dasd_destroy_partitions(struct dasd_device * device) * Get the bdev pointer from the device structure and clear * device->bdev to lower the offline open_count limit again. */ - bdev = device->bdev; - device->bdev = NULL; + bdev = block->bdev; + block->bdev = NULL; /* * See fs/partition/check.c:delete_partition @@ -149,17 +147,16 @@ dasd_destroy_partitions(struct dasd_device * device) memset(&barg, 0, sizeof(struct blkpg_ioctl_arg)); barg.data = (void __force __user *) &bpart; barg.op = BLKPG_DEL_PARTITION; - for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--) + for (bpart.pno = block->gdp->minors - 1; bpart.pno > 0; bpart.pno--) ioctl_by_bdev(bdev, BLKPG, (unsigned long) &barg); - invalidate_partition(device->gdp, 0); + invalidate_partition(block->gdp, 0); /* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */ blkdev_put(bdev); - set_capacity(device->gdp, 0); + set_capacity(block->gdp, 0); } -int -dasd_gendisk_init(void) +int dasd_gendisk_init(void) { int rc; @@ -174,8 +171,7 @@ dasd_gendisk_init(void) return 0; } -void -dasd_gendisk_exit(void) +void dasd_gendisk_exit(void) { unregister_blkdev(DASD_MAJOR, "dasd"); } diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index d427daeef51..44b2984dfbe 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -64,13 +64,7 @@ * SECTION: Type definitions */ struct dasd_device; - -typedef enum { - dasd_era_fatal = -1, /* no chance to recover */ - dasd_era_none = 0, /* don't recover, everything alright */ - dasd_era_msg = 1, /* don't recover, just report... */ - dasd_era_recover = 2 /* recovery action recommended */ -} dasd_era_t; +struct dasd_block; /* BIT DEFINITIONS FOR SENSE DATA */ #define DASD_SENSE_BIT_0 0x80 @@ -151,19 +145,22 @@ do { \ struct dasd_ccw_req { unsigned int magic; /* Eye catcher */ - struct list_head list; /* list_head for request queueing. */ + struct list_head devlist; /* for dasd_device request queue */ + struct list_head blocklist; /* for dasd_block request queue */ /* Where to execute what... */ - struct dasd_device *device; /* device the request is for */ + struct dasd_block *block; /* the originating block device */ + struct dasd_device *memdev; /* the device used to allocate this */ + struct dasd_device *startdev; /* device the request is started on */ struct ccw1 *cpaddr; /* address of channel program */ - char status; /* status of this request */ + char status; /* status of this request */ short retries; /* A retry counter */ unsigned long flags; /* flags of this request */ /* ... and how */ unsigned long starttime; /* jiffies time of request start */ int expires; /* expiration period in jiffies */ - char lpm; /* logical path mask */ + char lpm; /* logical path mask */ void *data; /* pointer to data area */ /* these are important for recovering erroneous requests */ @@ -178,20 +175,27 @@ struct dasd_ccw_req { unsigned long long endclk; /* TOD-clock of request termination */ /* Callback that is called after reaching final status. */ - void (*callback)(struct dasd_ccw_req *, void *data); - void *callback_data; + void (*callback)(struct dasd_ccw_req *, void *data); + void *callback_data; }; /* * dasd_ccw_req -> status can be: */ -#define DASD_CQR_FILLED 0x00 /* request is ready to be processed */ -#define DASD_CQR_QUEUED 0x01 /* request is queued to be processed */ -#define DASD_CQR_IN_IO 0x02 /* request is currently in IO */ -#define DASD_CQR_DONE 0x03 /* request is completed successfully */ -#define DASD_CQR_ERROR 0x04 /* request is completed with error */ -#define DASD_CQR_FAILED 0x05 /* request is finally failed */ -#define DASD_CQR_CLEAR 0x06 /* request is clear pending */ +#define DASD_CQR_FILLED 0x00 /* request is ready to be processed */ +#define DASD_CQR_DONE 0x01 /* request is completed successfully */ +#define DASD_CQR_NEED_ERP 0x02 /* request needs recovery action */ +#define DASD_CQR_IN_ERP 0x03 /* request is in recovery */ +#define DASD_CQR_FAILED 0x04 /* request is finally failed */ +#define DASD_CQR_TERMINATED 0x05 /* request was stopped by driver */ + +#define DASD_CQR_QUEUED 0x80 /* request is queued to be processed */ +#define DASD_CQR_IN_IO 0x81 /* request is currently in IO */ +#define DASD_CQR_ERROR 0x82 /* request is completed with error */ +#define DASD_CQR_CLEAR_PENDING 0x83 /* request is clear pending */ +#define DASD_CQR_CLEARED 0x84 /* request was cleared */ +#define DASD_CQR_SUCCESS 0x85 /* request was successfull */ + /* per dasd_ccw_req flags */ #define DASD_CQR_FLAGS_USE_ERP 0 /* use ERP for this request */ @@ -214,52 +218,71 @@ struct dasd_discipline { struct list_head list; /* used for list of disciplines */ - /* - * Device recognition functions. check_device is used to verify - * the sense data and the information returned by read device - * characteristics. It returns 0 if the discipline can be used - * for the device in question. - * do_analysis is used in the step from device state "basic" to - * state "accept". It returns 0 if the device can be made ready, - * it returns -EMEDIUMTYPE if the device can't be made ready or - * -EAGAIN if do_analysis started a ccw that needs to complete - * before the analysis may be repeated. - */ - int (*check_device)(struct dasd_device *); - int (*do_analysis) (struct dasd_device *); - - /* - * Device operation functions. build_cp creates a ccw chain for - * a block device request, start_io starts the request and - * term_IO cancels it (e.g. in case of a timeout). format_device - * returns a ccw chain to be used to format the device. - */ + /* + * Device recognition functions. check_device is used to verify + * the sense data and the information returned by read device + * characteristics. It returns 0 if the discipline can be used + * for the device in question. uncheck_device is called during + * device shutdown to deregister a device from its discipline. + */ + int (*check_device) (struct dasd_device *); + void (*uncheck_device) (struct dasd_device *); + + /* + * do_analysis is used in the step from device state "basic" to + * state "accept". It returns 0 if the device can be made ready, + * it returns -EMEDIUMTYPE if the device can't be made ready or + * -EAGAIN if do_analysis started a ccw that needs to complete + * before the analysis may be repeated. + */ + int (*do_analysis) (struct dasd_block *); + + /* + * Last things to do when a device is set online, and first things + * when it is set offline. + */ + int (*ready_to_online) (struct dasd_device *); + int (*online_to_ready) (struct dasd_device *); + + /* + * Device operation functions. build_cp creates a ccw chain for + * a block device request, start_io starts the request and + * term_IO cancels it (e.g. in case of a timeout). format_device + * returns a ccw chain to be used to format the device. + * handle_terminated_request allows to examine a cqr and prepare + * it for retry. + */ struct dasd_ccw_req *(*build_cp) (struct dasd_device *, + struct dasd_block *, struct request *); int (*start_IO) (struct dasd_ccw_req *); int (*term_IO) (struct dasd_ccw_req *); + void (*handle_terminated_request) (struct dasd_ccw_req *); struct dasd_ccw_req *(*format_device) (struct dasd_device *, struct format_data_t *); int (*free_cp) (struct dasd_ccw_req *, struct request *); - /* - * Error recovery functions. examine_error() returns a value that - * indicates what to do for an error condition. If examine_error() + + /* + * Error recovery functions. examine_error() returns a value that + * indicates what to do for an error condition. If examine_error() * returns 'dasd_era_recover' erp_action() is called to create a - * special error recovery ccw. erp_postaction() is called after - * an error recovery ccw has finished its execution. dump_sense - * is called for every error condition to print the sense data - * to the console. - */ - dasd_era_t(*examine_error) (struct dasd_ccw_req *, struct irb *); + * special error recovery ccw. erp_postaction() is called after + * an error recovery ccw has finished its execution. dump_sense + * is called for every error condition to print the sense data + * to the console. + */ dasd_erp_fn_t(*erp_action) (struct dasd_ccw_req *); dasd_erp_fn_t(*erp_postaction) (struct dasd_ccw_req *); void (*dump_sense) (struct dasd_device *, struct dasd_ccw_req *, struct irb *); + void (*handle_unsolicited_interrupt) (struct dasd_device *, + struct irb *); + /* i/o control functions. */ - int (*fill_geometry) (struct dasd_device *, struct hd_geometry *); + int (*fill_geometry) (struct dasd_block *, struct hd_geometry *); int (*fill_info) (struct dasd_device *, struct dasd_information2_t *); - int (*ioctl) (struct dasd_device *, unsigned int, void __user *); + int (*ioctl) (struct dasd_block *, unsigned int, void __user *); }; extern struct dasd_discipline *dasd_diag_discipline_pointer; @@ -267,12 +290,18 @@ extern struct dasd_discipline *dasd_diag_discipline_pointer; /* * Unique identifier for dasd device. */ +#define UA_NOT_CONFIGURED 0x00 +#define UA_BASE_DEVICE 0x01 +#define UA_BASE_PAV_ALIAS 0x02 +#define UA_HYPER_PAV_ALIAS 0x03 + struct dasd_uid { - __u8 alias; + __u8 type; char vendor[4]; char serial[15]; __u16 ssid; - __u8 unit_addr; + __u8 real_unit_addr; + __u8 base_unit_addr; }; /* @@ -293,14 +322,9 @@ struct dasd_uid { struct dasd_device { /* Block device stuff. */ - struct gendisk *gdp; - struct request_queue *request_queue; - spinlock_t request_queue_lock; - struct block_device *bdev; + struct dasd_block *block; + unsigned int devindex; - unsigned long blocks; /* size of volume in blocks */ - unsigned int bp_block; /* bytes per block */ - unsigned int s2b_shift; /* log2 (bp_block/512) */ unsigned long flags; /* per device flags */ unsigned short features; /* copy of devmap-features (read-only!) */ @@ -316,9 +340,8 @@ struct dasd_device { int state, target; int stopped; /* device (ccw_device_start) was stopped */ - /* Open and reference count. */ + /* reference count. */ atomic_t ref_count; - atomic_t open_count; /* ccw queue and memory for static ccw/erp buffers. */ struct list_head ccw_queue; @@ -337,20 +360,45 @@ struct dasd_device { struct ccw_device *cdev; + /* hook for alias management */ + struct list_head alias_list; +}; + +struct dasd_block { + /* Block device stuff. */ + struct gendisk *gdp; + struct request_queue *request_queue; + spinlock_t request_queue_lock; + struct block_device *bdev; + atomic_t open_count; + + unsigned long blocks; /* size of volume in blocks */ + unsigned int bp_block; /* bytes per block */ + unsigned int s2b_shift; /* log2 (bp_block/512) */ + + struct dasd_device *base; + struct list_head ccw_queue; + spinlock_t queue_lock; + + atomic_t tasklet_scheduled; + struct tasklet_struct tasklet; + struct timer_list timer; + #ifdef CONFIG_DASD_PROFILE struct dasd_profile_info_t profile; #endif }; + + /* reasons why device (ccw_device_start) was stopped */ #define DASD_STOPPED_NOT_ACC 1 /* not accessible */ #define DASD_STOPPED_QUIESCE 2 /* Quiesced */ #define DASD_STOPPED_PENDING 4 /* long busy */ #define DASD_STOPPED_DC_WAIT 8 /* disconnected, wait */ -#define DASD_STOPPED_DC_EIO 16 /* disconnected, return -EIO */ +#define DASD_STOPPED_SU 16 /* summary unit check handling */ /* per device flags */ -#define DASD_FLAG_DSC_ERROR 2 /* return -EIO when disconnected */ #define DASD_FLAG_OFFLINE 3 /* device is in offline processing */ #define DASD_FLAG_EER_SNSS 4 /* A SNSS is required */ #define DASD_FLAG_EER_IN_USE 5 /* A SNSS request is running */ @@ -489,6 +537,9 @@ dasd_kmalloc_set_cda(struct ccw1 *ccw, void *cda, struct dasd_device *device) struct dasd_device *dasd_alloc_device(void); void dasd_free_device(struct dasd_device *); +struct dasd_block *dasd_alloc_block(void); +void dasd_free_block(struct dasd_block *); + void dasd_enable_device(struct dasd_device *); void dasd_set_target_state(struct dasd_device *, int); void dasd_kick_device(struct dasd_device *); @@ -497,18 +548,23 @@ void dasd_add_request_head(struct dasd_ccw_req *); void dasd_add_request_tail(struct dasd_ccw_req *); int dasd_start_IO(struct dasd_ccw_req *); int dasd_term_IO(struct dasd_ccw_req *); -void dasd_schedule_bh(struct dasd_device *); +void dasd_schedule_device_bh(struct dasd_device *); +void dasd_schedule_block_bh(struct dasd_block *); int dasd_sleep_on(struct dasd_ccw_req *); int dasd_sleep_on_immediatly(struct dasd_ccw_req *); int dasd_sleep_on_interruptible(struct dasd_ccw_req *); -void dasd_set_timer(struct dasd_device *, int); -void dasd_clear_timer(struct dasd_device *); +void dasd_device_set_timer(struct dasd_device *, int); +void dasd_device_clear_timer(struct dasd_device *); +void dasd_block_set_timer(struct dasd_block *, int); +void dasd_block_clear_timer(struct dasd_block *); int dasd_cancel_req(struct dasd_ccw_req *); +int dasd_flush_device_queue(struct dasd_device *); int dasd_generic_probe (struct ccw_device *, struct dasd_discipline *); void dasd_generic_remove (struct ccw_device *cdev); int dasd_generic_set_online(struct ccw_device *, struct dasd_discipline *); int dasd_generic_set_offline (struct ccw_device *cdev); int dasd_generic_notify(struct ccw_device *, int); +void dasd_generic_handle_state_change(struct dasd_device *); int dasd_generic_read_dev_chars(struct dasd_device *, char *, void **, int); @@ -542,10 +598,10 @@ int dasd_busid_known(char *); /* externals in dasd_gendisk.c */ int dasd_gendisk_init(void); void dasd_gendisk_exit(void); -int dasd_gendisk_alloc(struct dasd_device *); -void dasd_gendisk_free(struct dasd_device *); -int dasd_scan_partitions(struct dasd_device *); -void dasd_destroy_partitions(struct dasd_device *); +int dasd_gendisk_alloc(struct dasd_block *); +void dasd_gendisk_free(struct dasd_block *); +int dasd_scan_partitions(struct dasd_block *); +void dasd_destroy_partitions(struct dasd_block *); /* externals in dasd_ioctl.c */ int dasd_ioctl(struct inode *, struct file *, unsigned int, unsigned long); @@ -563,20 +619,9 @@ struct dasd_ccw_req *dasd_alloc_erp_request(char *, int, int, void dasd_free_erp_request(struct dasd_ccw_req *, struct dasd_device *); void dasd_log_sense(struct dasd_ccw_req *, struct irb *); -/* externals in dasd_3370_erp.c */ -dasd_era_t dasd_3370_erp_examine(struct dasd_ccw_req *, struct irb *); - /* externals in dasd_3990_erp.c */ -dasd_era_t dasd_3990_erp_examine(struct dasd_ccw_req *, struct irb *); struct dasd_ccw_req *dasd_3990_erp_action(struct dasd_ccw_req *); -/* externals in dasd_9336_erp.c */ -dasd_era_t dasd_9336_erp_examine(struct dasd_ccw_req *, struct irb *); - -/* externals in dasd_9336_erp.c */ -dasd_era_t dasd_9343_erp_examine(struct dasd_ccw_req *, struct irb *); -struct dasd_ccw_req *dasd_9343_erp_action(struct dasd_ccw_req *); - /* externals in dasd_eer.c */ #ifdef CONFIG_DASD_EER int dasd_eer_init(void); diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 672eb0a3dd0..91a64630cb0 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -38,15 +38,15 @@ dasd_ioctl_api_version(void __user *argp) static int dasd_ioctl_enable(struct block_device *bdev) { - struct dasd_device *device = bdev->bd_disk->private_data; + struct dasd_block *block = bdev->bd_disk->private_data; if (!capable(CAP_SYS_ADMIN)) return -EACCES; - dasd_enable_device(device); + dasd_enable_device(block->base); /* Formatting the dasd device can change the capacity. */ mutex_lock(&bdev->bd_mutex); - i_size_write(bdev->bd_inode, (loff_t)get_capacity(device->gdp) << 9); + i_size_write(bdev->bd_inode, (loff_t)get_capacity(block->gdp) << 9); mutex_unlock(&bdev->bd_mutex); return 0; } @@ -58,7 +58,7 @@ dasd_ioctl_enable(struct block_device *bdev) static int dasd_ioctl_disable(struct block_device *bdev) { - struct dasd_device *device = bdev->bd_disk->private_data; + struct dasd_block *block = bdev->bd_disk->private_data; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -71,7 +71,7 @@ dasd_ioctl_disable(struct block_device *bdev) * using the BIODASDFMT ioctl. Therefore the correct state for the * device is DASD_STATE_BASIC that allows to do basic i/o. */ - dasd_set_target_state(device, DASD_STATE_BASIC); + dasd_set_target_state(block->base, DASD_STATE_BASIC); /* * Set i_size to zero, since read, write, etc. check against this * value. @@ -85,19 +85,19 @@ dasd_ioctl_disable(struct block_device *bdev) /* * Quiesce device. */ -static int -dasd_ioctl_quiesce(struct dasd_device *device) +static int dasd_ioctl_quiesce(struct dasd_block *block) { unsigned long flags; + struct dasd_device *base; + base = block->base; if (!capable (CAP_SYS_ADMIN)) return -EACCES; - DEV_MESSAGE (KERN_DEBUG, device, "%s", - "Quiesce IO on device"); - spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); - device->stopped |= DASD_STOPPED_QUIESCE; - spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + DEV_MESSAGE(KERN_DEBUG, base, "%s", "Quiesce IO on device"); + spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); + base->stopped |= DASD_STOPPED_QUIESCE; + spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags); return 0; } @@ -105,22 +105,21 @@ dasd_ioctl_quiesce(struct dasd_device *device) /* * Quiesce device. */ -static int -dasd_ioctl_resume(struct dasd_device *device) +static int dasd_ioctl_resume(struct dasd_block *block) { unsigned long flags; + struct dasd_device *base; + base = block->base; if (!capable (CAP_SYS_ADMIN)) return -EACCES; - DEV_MESSAGE (KERN_DEBUG, device, "%s", - "resume IO on device"); - - spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); - device->stopped &= ~DASD_STOPPED_QUIESCE; - spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + DEV_MESSAGE(KERN_DEBUG, base, "%s", "resume IO on device"); + spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); + base->stopped &= ~DASD_STOPPED_QUIESCE; + spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags); - dasd_schedule_bh (device); + dasd_schedule_block_bh(block); return 0; } @@ -130,22 +129,23 @@ dasd_ioctl_resume(struct dasd_device *device) * commands to format a single unit of the device. In terms of the ECKD * devices this means CCWs are generated to format a single track. */ -static int -dasd_format(struct dasd_device * device, struct format_data_t * fdata) +static int dasd_format(struct dasd_block *block, struct format_data_t *fdata) { struct dasd_ccw_req *cqr; + struct dasd_device *base; int rc; - if (device->discipline->format_device == NULL) + base = block->base; + if (base->discipline->format_device == NULL) return -EPERM; - if (device->state != DASD_STATE_BASIC) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + if (base->state != DASD_STATE_BASIC) { + DEV_MESSAGE(KERN_WARNING, base, "%s", "dasd_format: device is not disabled! "); return -EBUSY; } - DBF_DEV_EVENT(DBF_NOTICE, device, + DBF_DEV_EVENT(DBF_NOTICE, base, "formatting units %d to %d (%d B blocks) flags %d", fdata->start_unit, fdata->stop_unit, fdata->blksize, fdata->intensity); @@ -156,20 +156,20 @@ dasd_format(struct dasd_device * device, struct format_data_t * fdata) * enabling the device later. */ if (fdata->start_unit == 0) { - struct block_device *bdev = bdget_disk(device->gdp, 0); + struct block_device *bdev = bdget_disk(block->gdp, 0); bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize); bdput(bdev); } while (fdata->start_unit <= fdata->stop_unit) { - cqr = device->discipline->format_device(device, fdata); + cqr = base->discipline->format_device(base, fdata); if (IS_ERR(cqr)) return PTR_ERR(cqr); rc = dasd_sleep_on_interruptible(cqr); - dasd_sfree_request(cqr, cqr->device); + dasd_sfree_request(cqr, cqr->memdev); if (rc) { if (rc != -ERESTARTSYS) - DEV_MESSAGE(KERN_ERR, device, + DEV_MESSAGE(KERN_ERR, base, " Formatting of unit %d failed " "with rc = %d", fdata->start_unit, rc); @@ -186,7 +186,7 @@ dasd_format(struct dasd_device * device, struct format_data_t * fdata) static int dasd_ioctl_format(struct block_device *bdev, void __user *argp) { - struct dasd_device *device = bdev->bd_disk->private_data; + struct dasd_block *block = bdev->bd_disk->private_data; struct format_data_t fdata; if (!capable(CAP_SYS_ADMIN)) @@ -194,51 +194,47 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp) if (!argp) return -EINVAL; - if (device->features & DASD_FEATURE_READONLY) + if (block->base->features & DASD_FEATURE_READONLY) return -EROFS; if (copy_from_user(&fdata, argp, sizeof(struct format_data_t))) return -EFAULT; if (bdev != bdev->bd_contains) { - DEV_MESSAGE(KERN_WARNING, device, "%s", + DEV_MESSAGE(KERN_WARNING, block->base, "%s", "Cannot low-level format a partition"); return -EINVAL; } - return dasd_format(device, &fdata); + return dasd_format(block, &fdata); } #ifdef CONFIG_DASD_PROFILE /* * Reset device profile information */ -static int -dasd_ioctl_reset_profile(struct dasd_device *device) +static int dasd_ioctl_reset_profile(struct dasd_block *block) { - memset(&device->profile, 0, sizeof (struct dasd_profile_info_t)); + memset(&block->profile, 0, sizeof(struct dasd_profile_info_t)); return 0; } /* * Return device profile information */ -static int -dasd_ioctl_read_profile(struct dasd_device *device, void __user *argp) +static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp) { if (dasd_profile_level == DASD_PROFILE_OFF) return -EIO; - if (copy_to_user(argp, &device->profile, - sizeof (struct dasd_profile_info_t))) + if (copy_to_user(argp, &block->profile, + sizeof(struct dasd_profile_info_t))) return -EFAULT; return 0; } #else -static int -dasd_ioctl_reset_profile(struct dasd_device *device) +static int dasd_ioctl_reset_profile(struct dasd_block *block) { return -ENOSYS; } -static int -dasd_ioctl_read_profile(struct dasd_device *device, void __user *argp) +static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp) { return -ENOSYS; } @@ -247,87 +243,88 @@ dasd_ioctl_read_profile(struct dasd_device *device, void __user *argp) /* * Return dasd information. Used for BIODASDINFO and BIODASDINFO2. */ -static int -dasd_ioctl_information(struct dasd_device *device, - unsigned int cmd, void __user *argp) +static int dasd_ioctl_information(struct dasd_block *block, + unsigned int cmd, void __user *argp) { struct dasd_information2_t *dasd_info; unsigned long flags; int rc; + struct dasd_device *base; struct ccw_device *cdev; struct ccw_dev_id dev_id; - if (!device->discipline->fill_info) + base = block->base; + if (!base->discipline->fill_info) return -EINVAL; dasd_info = kzalloc(sizeof(struct dasd_information2_t), GFP_KERNEL); if (dasd_info == NULL) return -ENOMEM; - rc = device->discipline->fill_info(device, dasd_info); + rc = base->discipline->fill_info(base, dasd_info); if (rc) { kfree(dasd_info); return rc; } - cdev = device->cdev; + cdev = base->cdev; ccw_device_get_id(cdev, &dev_id); dasd_info->devno = dev_id.devno; - dasd_info->schid = _ccw_device_get_subchannel_number(device->cdev); + dasd_info->schid = _ccw_device_get_subchannel_number(base->cdev); dasd_info->cu_type = cdev->id.cu_type; dasd_info->cu_model = cdev->id.cu_model; dasd_info->dev_type = cdev->id.dev_type; dasd_info->dev_model = cdev->id.dev_model; - dasd_info->status = device->state; + dasd_info->status = base->state; /* * The open_count is increased for every opener, that includes * the blkdev_get in dasd_scan_partitions. * This must be hidden from user-space. */ - dasd_info->open_count = atomic_read(&device->open_count); - if (!device->bdev) + dasd_info->open_count = atomic_read(&block->open_count); + if (!block->bdev) dasd_info->open_count++; /* * check if device is really formatted * LDL / CDL was returned by 'fill_info' */ - if ((device->state < DASD_STATE_READY) || - (dasd_check_blocksize(device->bp_block))) + if ((base->state < DASD_STATE_READY) || + (dasd_check_blocksize(block->bp_block))) dasd_info->format = DASD_FORMAT_NONE; dasd_info->features |= - ((device->features & DASD_FEATURE_READONLY) != 0); + ((base->features & DASD_FEATURE_READONLY) != 0); - if (device->discipline) - memcpy(dasd_info->type, device->discipline->name, 4); + if (base->discipline) + memcpy(dasd_info->type, base->discipline->name, 4); else memcpy(dasd_info->type, "none", 4); - if (device->request_queue->request_fn) { + if (block->request_queue->request_fn) { struct list_head *l; #ifdef DASD_EXTENDED_PROFILING { struct list_head *l; - spin_lock_irqsave(&device->lock, flags); - list_for_each(l, &device->request_queue->queue_head) + spin_lock_irqsave(&block->lock, flags); + list_for_each(l, &block->request_queue->queue_head) dasd_info->req_queue_len++; - spin_unlock_irqrestore(&device->lock, flags); + spin_unlock_irqrestore(&block->lock, flags); } #endif /* DASD_EXTENDED_PROFILING */ - spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); - list_for_each(l, &device->ccw_queue) + spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags); + list_for_each(l, &base->ccw_queue) dasd_info->chanq_len++; - spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags); } rc = 0; if (copy_to_user(argp, dasd_info, ((cmd == (unsigned int) BIODASDINFO2) ? - sizeof (struct dasd_information2_t) : - sizeof (struct dasd_information_t)))) + sizeof(struct dasd_information2_t) : + sizeof(struct dasd_information_t)))) rc = -EFAULT; kfree(dasd_info); return rc; @@ -339,7 +336,7 @@ dasd_ioctl_information(struct dasd_device *device, static int dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp) { - struct dasd_device *device = bdev->bd_disk->private_data; + struct dasd_block *block = bdev->bd_disk->private_data; int intval; if (!capable(CAP_SYS_ADMIN)) @@ -351,11 +348,10 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp) return -EFAULT; set_disk_ro(bdev->bd_disk, intval); - return dasd_set_feature(device->cdev, DASD_FEATURE_READONLY, intval); + return dasd_set_feature(block->base->cdev, DASD_FEATURE_READONLY, intval); } -static int -dasd_ioctl_readall_cmb(struct dasd_device *device, unsigned int cmd, +static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd, unsigned long arg) { struct cmbdata __user *argp = (void __user *) arg; @@ -363,7 +359,7 @@ dasd_ioctl_readall_cmb(struct dasd_device *device, unsigned int cmd, struct cmbdata data; int ret; - ret = cmf_readall(device->cdev, &data); + ret = cmf_readall(block->base->cdev, &data); if (!ret && copy_to_user(argp, &data, min(size, sizeof(*argp)))) return -EFAULT; return ret; @@ -374,10 +370,10 @@ dasd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct block_device *bdev = inode->i_bdev; - struct dasd_device *device = bdev->bd_disk->private_data; + struct dasd_block *block = bdev->bd_disk->private_data; void __user *argp = (void __user *)arg; - if (!device) + if (!block) return -ENODEV; if ((_IOC_DIR(cmd) != _IOC_NONE) && !arg) { @@ -391,33 +387,33 @@ dasd_ioctl(struct inode *inode, struct file *file, case BIODASDENABLE: return dasd_ioctl_enable(bdev); case BIODASDQUIESCE: - return dasd_ioctl_quiesce(device); + return dasd_ioctl_quiesce(block); case BIODASDRESUME: - return dasd_ioctl_resume(device); + return dasd_ioctl_resume(block); case BIODASDFMT: return dasd_ioctl_format(bdev, argp); case BIODASDINFO: - return dasd_ioctl_information(device, cmd, argp); + return dasd_ioctl_information(block, cmd, argp); case BIODASDINFO2: - return dasd_ioctl_information(device, cmd, argp); + return dasd_ioctl_information(block, cmd, argp); case BIODASDPRRD: - return dasd_ioctl_read_profile(device, argp); + return dasd_ioctl_read_profile(block, argp); case BIODASDPRRST: - return dasd_ioctl_reset_profile(device); + return dasd_ioctl_reset_profile(block); case BLKROSET: return dasd_ioctl_set_ro(bdev, argp); case DASDAPIVER: return dasd_ioctl_api_version(argp); case BIODASDCMFENABLE: - return enable_cmf(device->cdev); + return enable_cmf(block->base->cdev); case BIODASDCMFDISABLE: - return disable_cmf(device->cdev); + return disable_cmf(block->base->cdev); case BIODASDREADALLCMB: - return dasd_ioctl_readall_cmb(device, cmd, arg); + return dasd_ioctl_readall_cmb(block, cmd, arg); default: /* if the discipline has an ioctl method try it. */ - if (device->discipline->ioctl) { - int rval = device->discipline->ioctl(device, cmd, argp); + if (block->base->discipline->ioctl) { + int rval = block->base->discipline->ioctl(block, cmd, argp); if (rval != -ENOIOCTLCMD) return rval; } diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index ac7e8ef504c..28a86f07004 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -54,11 +54,16 @@ static int dasd_devices_show(struct seq_file *m, void *v) { struct dasd_device *device; + struct dasd_block *block; char *substr; device = dasd_device_from_devindex((unsigned long) v - 1); if (IS_ERR(device)) return 0; + if (device->block) + block = device->block; + else + return 0; /* Print device number. */ seq_printf(m, "%s", device->cdev->dev.bus_id); /* Print discipline string. */ @@ -67,14 +72,14 @@ dasd_devices_show(struct seq_file *m, void *v) else seq_printf(m, "(none)"); /* Print kdev. */ - if (device->gdp) + if (block->gdp) seq_printf(m, " at (%3d:%6d)", - device->gdp->major, device->gdp->first_minor); + block->gdp->major, block->gdp->first_minor); else seq_printf(m, " at (???:??????)"); /* Print device name. */ - if (device->gdp) - seq_printf(m, " is %-8s", device->gdp->disk_name); + if (block->gdp) + seq_printf(m, " is %-8s", block->gdp->disk_name); else seq_printf(m, " is ????????"); /* Print devices features. */ @@ -100,14 +105,14 @@ dasd_devices_show(struct seq_file *m, void *v) case DASD_STATE_READY: case DASD_STATE_ONLINE: seq_printf(m, "active "); - if (dasd_check_blocksize(device->bp_block)) + if (dasd_check_blocksize(block->bp_block)) seq_printf(m, "n/f "); else seq_printf(m, "at blocksize: %d, %ld blocks, %ld MB", - device->bp_block, device->blocks, - ((device->bp_block >> 9) * - device->blocks) >> 11); + block->bp_block, block->blocks, + ((block->bp_block >> 9) * + block->blocks) >> 11); break; default: seq_printf(m, "no stat"); @@ -137,7 +142,7 @@ static void dasd_devices_stop(struct seq_file *m, void *v) { } -static struct seq_operations dasd_devices_seq_ops = { +static const struct seq_operations dasd_devices_seq_ops = { .start = dasd_devices_start, .next = dasd_devices_next, .stop = dasd_devices_stop, diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 15a5789b773..7779bfce1c3 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -82,7 +82,7 @@ struct dcssblk_dev_info { struct request_queue *dcssblk_queue; }; -static struct list_head dcssblk_devices = LIST_HEAD_INIT(dcssblk_devices); +static LIST_HEAD(dcssblk_devices); static struct rw_semaphore dcssblk_devices_sem; /* diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile index 130de19916f..7e73e39a174 100644 --- a/drivers/s390/char/Makefile +++ b/drivers/s390/char/Makefile @@ -3,7 +3,7 @@ # obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \ - sclp_info.o sclp_config.o sclp_chp.o + sclp_cmd.o sclp_config.o sclp_cpi_sys.o obj-$(CONFIG_TN3270) += raw3270.o obj-$(CONFIG_TN3270_CONSOLE) += con3270.o diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c index 20442fbf934..a86c0534cd4 100644 --- a/drivers/s390/char/monwriter.c +++ b/drivers/s390/char/monwriter.c @@ -295,7 +295,7 @@ module_init(mon_init); module_exit(mon_exit); module_param_named(max_bufs, mon_max_bufs, int, 0644); -MODULE_PARM_DESC(max_bufs, "Maximum number of sample monitor data buffers" +MODULE_PARM_DESC(max_bufs, "Maximum number of sample monitor data buffers " "that can be active at one time"); MODULE_AUTHOR("Melissa Howland <Melissa.Howland@us.ibm.com>"); diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 8d1c64a24de..0d98f1ff2ed 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -66,7 +66,7 @@ struct raw3270 { static DEFINE_MUTEX(raw3270_mutex); /* List of 3270 devices. */ -static struct list_head raw3270_devices = LIST_HEAD_INIT(raw3270_devices); +static LIST_HEAD(raw3270_devices); /* * Flag to indicate if the driver has been registered. Some operations @@ -1210,7 +1210,7 @@ struct raw3270_notifier { void (*notifier)(int, int); }; -static struct list_head raw3270_notifier = LIST_HEAD_INIT(raw3270_notifier); +static LIST_HEAD(raw3270_notifier); int raw3270_register_notifier(void (*notifier)(int, int)) { diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h index c7318a12585..aa8186d18ae 100644 --- a/drivers/s390/char/sclp.h +++ b/drivers/s390/char/sclp.h @@ -56,8 +56,6 @@ typedef unsigned int sclp_cmdw_t; #define SCLP_CMDW_READ_EVENT_DATA 0x00770005 #define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005 #define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005 -#define SCLP_CMDW_READ_SCP_INFO 0x00020001 -#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 #define GDS_ID_MDSMU 0x1310 #define GDS_ID_MDSROUTEINFO 0x1311 @@ -83,6 +81,8 @@ extern u64 sclp_facilities; #define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL) #define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) +#define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) +#define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL) struct gds_subvector { u8 length; diff --git a/drivers/s390/char/sclp_chp.c b/drivers/s390/char/sclp_chp.c deleted file mode 100644 index c68f5e7e63a..00000000000 --- a/drivers/s390/char/sclp_chp.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * drivers/s390/char/sclp_chp.c - * - * Copyright IBM Corp. 2007 - * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> - */ - -#include <linux/types.h> -#include <linux/gfp.h> -#include <linux/errno.h> -#include <linux/completion.h> -#include <asm/sclp.h> -#include <asm/chpid.h> - -#include "sclp.h" - -#define TAG "sclp_chp: " - -#define SCLP_CMDW_CONFIGURE_CHANNEL_PATH 0x000f0001 -#define SCLP_CMDW_DECONFIGURE_CHANNEL_PATH 0x000e0001 -#define SCLP_CMDW_READ_CHANNEL_PATH_INFORMATION 0x00030001 - -static inline sclp_cmdw_t get_configure_cmdw(struct chp_id chpid) -{ - return SCLP_CMDW_CONFIGURE_CHANNEL_PATH | chpid.id << 8; -} - -static inline sclp_cmdw_t get_deconfigure_cmdw(struct chp_id chpid) -{ - return SCLP_CMDW_DECONFIGURE_CHANNEL_PATH | chpid.id << 8; -} - -static void chp_callback(struct sclp_req *req, void *data) -{ - struct completion *completion = data; - - complete(completion); -} - -struct chp_cfg_sccb { - struct sccb_header header; - u8 ccm; - u8 reserved[6]; - u8 cssid; -} __attribute__((packed)); - -struct chp_cfg_data { - struct chp_cfg_sccb sccb; - struct sclp_req req; - struct completion completion; -} __attribute__((packed)); - -static int do_configure(sclp_cmdw_t cmd) -{ - struct chp_cfg_data *data; - int rc; - - if (!SCLP_HAS_CHP_RECONFIG) - return -EOPNOTSUPP; - /* Prepare sccb. */ - data = (struct chp_cfg_data *) get_zeroed_page(GFP_KERNEL | GFP_DMA); - if (!data) - return -ENOMEM; - data->sccb.header.length = sizeof(struct chp_cfg_sccb); - data->req.command = cmd; - data->req.sccb = &(data->sccb); - data->req.status = SCLP_REQ_FILLED; - data->req.callback = chp_callback; - data->req.callback_data = &(data->completion); - init_completion(&data->completion); - - /* Perform sclp request. */ - rc = sclp_add_request(&(data->req)); - if (rc) - goto out; - wait_for_completion(&data->completion); - - /* Check response .*/ - if (data->req.status != SCLP_REQ_DONE) { - printk(KERN_WARNING TAG "configure channel-path request failed " - "(status=0x%02x)\n", data->req.status); - rc = -EIO; - goto out; - } - switch (data->sccb.header.response_code) { - case 0x0020: - case 0x0120: - case 0x0440: - case 0x0450: - break; - default: - printk(KERN_WARNING TAG "configure channel-path failed " - "(cmd=0x%08x, response=0x%04x)\n", cmd, - data->sccb.header.response_code); - rc = -EIO; - break; - } -out: - free_page((unsigned long) data); - - return rc; -} - -/** - * sclp_chp_configure - perform configure channel-path sclp command - * @chpid: channel-path ID - * - * Perform configure channel-path command sclp command for specified chpid. - * Return 0 after command successfully finished, non-zero otherwise. - */ -int sclp_chp_configure(struct chp_id chpid) -{ - return do_configure(get_configure_cmdw(chpid)); -} - -/** - * sclp_chp_deconfigure - perform deconfigure channel-path sclp command - * @chpid: channel-path ID - * - * Perform deconfigure channel-path command sclp command for specified chpid - * and wait for completion. On success return 0. Return non-zero otherwise. - */ -int sclp_chp_deconfigure(struct chp_id chpid) -{ - return do_configure(get_deconfigure_cmdw(chpid)); -} - -struct chp_info_sccb { - struct sccb_header header; - u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; - u8 standby[SCLP_CHP_INFO_MASK_SIZE]; - u8 configured[SCLP_CHP_INFO_MASK_SIZE]; - u8 ccm; - u8 reserved[6]; - u8 cssid; -} __attribute__((packed)); - -struct chp_info_data { - struct chp_info_sccb sccb; - struct sclp_req req; - struct completion completion; -} __attribute__((packed)); - -/** - * sclp_chp_read_info - perform read channel-path information sclp command - * @info: resulting channel-path information data - * - * Perform read channel-path information sclp command and wait for completion. - * On success, store channel-path information in @info and return 0. Return - * non-zero otherwise. - */ -int sclp_chp_read_info(struct sclp_chp_info *info) -{ - struct chp_info_data *data; - int rc; - - if (!SCLP_HAS_CHP_INFO) - return -EOPNOTSUPP; - /* Prepare sccb. */ - data = (struct chp_info_data *) get_zeroed_page(GFP_KERNEL | GFP_DMA); - if (!data) - return -ENOMEM; - data->sccb.header.length = sizeof(struct chp_info_sccb); - data->req.command = SCLP_CMDW_READ_CHANNEL_PATH_INFORMATION; - data->req.sccb = &(data->sccb); - data->req.status = SCLP_REQ_FILLED; - data->req.callback = chp_callback; - data->req.callback_data = &(data->completion); - init_completion(&data->completion); - - /* Perform sclp request. */ - rc = sclp_add_request(&(data->req)); - if (rc) - goto out; - wait_for_completion(&data->completion); - - /* Check response .*/ - if (data->req.status != SCLP_REQ_DONE) { - printk(KERN_WARNING TAG "read channel-path info request failed " - "(status=0x%02x)\n", data->req.status); - rc = -EIO; - goto out; - } - if (data->sccb.header.response_code != 0x0010) { - printk(KERN_WARNING TAG "read channel-path info failed " - "(response=0x%04x)\n", data->sccb.header.response_code); - rc = -EIO; - goto out; - } - memcpy(info->recognized, data->sccb.recognized, - SCLP_CHP_INFO_MASK_SIZE); - memcpy(info->standby, data->sccb.standby, - SCLP_CHP_INFO_MASK_SIZE); - memcpy(info->configured, data->sccb.configured, - SCLP_CHP_INFO_MASK_SIZE); -out: - free_page((unsigned long) data); - - return rc; -} diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c new file mode 100644 index 00000000000..b5c23396f8f --- /dev/null +++ b/drivers/s390/char/sclp_cmd.c @@ -0,0 +1,398 @@ +/* + * drivers/s390/char/sclp_cmd.c + * + * Copyright IBM Corp. 2007 + * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>, + * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#include <linux/completion.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <asm/chpid.h> +#include <asm/sclp.h> +#include "sclp.h" + +#define TAG "sclp_cmd: " + +#define SCLP_CMDW_READ_SCP_INFO 0x00020001 +#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 + +struct read_info_sccb { + struct sccb_header header; /* 0-7 */ + u16 rnmax; /* 8-9 */ + u8 rnsize; /* 10 */ + u8 _reserved0[24 - 11]; /* 11-15 */ + u8 loadparm[8]; /* 24-31 */ + u8 _reserved1[48 - 32]; /* 32-47 */ + u64 facilities; /* 48-55 */ + u8 _reserved2[84 - 56]; /* 56-83 */ + u8 fac84; /* 84 */ + u8 _reserved3[91 - 85]; /* 85-90 */ + u8 flags; /* 91 */ + u8 _reserved4[100 - 92]; /* 92-99 */ + u32 rnsize2; /* 100-103 */ + u64 rnmax2; /* 104-111 */ + u8 _reserved5[4096 - 112]; /* 112-4095 */ +} __attribute__((packed, aligned(PAGE_SIZE))); + +static struct read_info_sccb __initdata early_read_info_sccb; +static int __initdata early_read_info_sccb_valid; + +u64 sclp_facilities; +static u8 sclp_fac84; + +static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb) +{ + int rc; + + __ctl_set_bit(0, 9); + rc = sclp_service_call(cmd, sccb); + if (rc) + goto out; + __load_psw_mask(PSW_BASE_BITS | PSW_MASK_EXT | + PSW_MASK_WAIT | PSW_DEFAULT_KEY); + local_irq_disable(); +out: + /* Contents of the sccb might have changed. */ + barrier(); + __ctl_clear_bit(0, 9); + return rc; +} + +void __init sclp_read_info_early(void) +{ + int rc; + int i; + struct read_info_sccb *sccb; + sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED, + SCLP_CMDW_READ_SCP_INFO}; + + sccb = &early_read_info_sccb; + for (i = 0; i < ARRAY_SIZE(commands); i++) { + do { + memset(sccb, 0, sizeof(*sccb)); + sccb->header.length = sizeof(*sccb); + sccb->header.control_mask[2] = 0x80; + rc = sclp_cmd_sync_early(commands[i], sccb); + } while (rc == -EBUSY); + + if (rc) + break; + if (sccb->header.response_code == 0x10) { + early_read_info_sccb_valid = 1; + break; + } + if (sccb->header.response_code != 0x1f0) + break; + } +} + +void __init sclp_facilities_detect(void) +{ + if (!early_read_info_sccb_valid) + return; + sclp_facilities = early_read_info_sccb.facilities; + sclp_fac84 = early_read_info_sccb.fac84; +} + +unsigned long long __init sclp_memory_detect(void) +{ + unsigned long long memsize; + struct read_info_sccb *sccb; + + if (!early_read_info_sccb_valid) + return 0; + sccb = &early_read_info_sccb; + if (sccb->rnsize) + memsize = sccb->rnsize << 20; + else + memsize = sccb->rnsize2 << 20; + if (sccb->rnmax) + memsize *= sccb->rnmax; + else + memsize *= sccb->rnmax2; + return memsize; +} + +/* + * This function will be called after sclp_memory_detect(), which gets called + * early from early.c code. Therefore the sccb should have valid contents. + */ +void __init sclp_get_ipl_info(struct sclp_ipl_info *info) +{ + struct read_info_sccb *sccb; + + if (!early_read_info_sccb_valid) + return; + sccb = &early_read_info_sccb; + info->is_valid = 1; + if (sccb->flags & 0x2) + info->has_dump = 1; + memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN); +} + +static void sclp_sync_callback(struct sclp_req *req, void *data) +{ + struct completion *completion = data; + + complete(completion); +} + +static int do_sync_request(sclp_cmdw_t cmd, void *sccb) +{ + struct completion completion; + struct sclp_req *request; + int rc; + + request = kzalloc(sizeof(*request), GFP_KERNEL); + if (!request) + return -ENOMEM; + request->command = cmd; + request->sccb = sccb; + request->status = SCLP_REQ_FILLED; + request->callback = sclp_sync_callback; + request->callback_data = &completion; + init_completion(&completion); + + /* Perform sclp request. */ + rc = sclp_add_request(request); + if (rc) + goto out; + wait_for_completion(&completion); + + /* Check response. */ + if (request->status != SCLP_REQ_DONE) { + printk(KERN_WARNING TAG "sync request failed " + "(cmd=0x%08x, status=0x%02x)\n", cmd, request->status); + rc = -EIO; + } +out: + kfree(request); + return rc; +} + +/* + * CPU configuration related functions. + */ + +#define SCLP_CMDW_READ_CPU_INFO 0x00010001 +#define SCLP_CMDW_CONFIGURE_CPU 0x00110001 +#define SCLP_CMDW_DECONFIGURE_CPU 0x00100001 + +struct read_cpu_info_sccb { + struct sccb_header header; + u16 nr_configured; + u16 offset_configured; + u16 nr_standby; + u16 offset_standby; + u8 reserved[4096 - 16]; +} __attribute__((packed, aligned(PAGE_SIZE))); + +static void sclp_fill_cpu_info(struct sclp_cpu_info *info, + struct read_cpu_info_sccb *sccb) +{ + char *page = (char *) sccb; + + memset(info, 0, sizeof(*info)); + info->configured = sccb->nr_configured; + info->standby = sccb->nr_standby; + info->combined = sccb->nr_configured + sccb->nr_standby; + info->has_cpu_type = sclp_fac84 & 0x1; + memcpy(&info->cpu, page + sccb->offset_configured, + info->combined * sizeof(struct sclp_cpu_entry)); +} + +int sclp_get_cpu_info(struct sclp_cpu_info *info) +{ + int rc; + struct read_cpu_info_sccb *sccb; + + if (!SCLP_HAS_CPU_INFO) + return -EOPNOTSUPP; + sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccb) + return -ENOMEM; + sccb->header.length = sizeof(*sccb); + rc = do_sync_request(SCLP_CMDW_READ_CPU_INFO, sccb); + if (rc) + goto out; + if (sccb->header.response_code != 0x0010) { + printk(KERN_WARNING TAG "readcpuinfo failed " + "(response=0x%04x)\n", sccb->header.response_code); + rc = -EIO; + goto out; + } + sclp_fill_cpu_info(info, sccb); +out: + free_page((unsigned long) sccb); + return rc; +} + +struct cpu_configure_sccb { + struct sccb_header header; +} __attribute__((packed, aligned(8))); + +static int do_cpu_configure(sclp_cmdw_t cmd) +{ + struct cpu_configure_sccb *sccb; + int rc; + + if (!SCLP_HAS_CPU_RECONFIG) + return -EOPNOTSUPP; + /* + * This is not going to cross a page boundary since we force + * kmalloc to have a minimum alignment of 8 bytes on s390. + */ + sccb = kzalloc(sizeof(*sccb), GFP_KERNEL | GFP_DMA); + if (!sccb) + return -ENOMEM; + sccb->header.length = sizeof(*sccb); + rc = do_sync_request(cmd, sccb); + if (rc) + goto out; + switch (sccb->header.response_code) { + case 0x0020: + case 0x0120: + break; + default: + printk(KERN_WARNING TAG "configure cpu failed (cmd=0x%08x, " + "response=0x%04x)\n", cmd, sccb->header.response_code); + rc = -EIO; + break; + } +out: + kfree(sccb); + return rc; +} + +int sclp_cpu_configure(u8 cpu) +{ + return do_cpu_configure(SCLP_CMDW_CONFIGURE_CPU | cpu << 8); +} + +int sclp_cpu_deconfigure(u8 cpu) +{ + return do_cpu_configure(SCLP_CMDW_DECONFIGURE_CPU | cpu << 8); +} + +/* + * Channel path configuration related functions. + */ + +#define SCLP_CMDW_CONFIGURE_CHPATH 0x000f0001 +#define SCLP_CMDW_DECONFIGURE_CHPATH 0x000e0001 +#define SCLP_CMDW_READ_CHPATH_INFORMATION 0x00030001 + +struct chp_cfg_sccb { + struct sccb_header header; + u8 ccm; + u8 reserved[6]; + u8 cssid; +} __attribute__((packed)); + +static int do_chp_configure(sclp_cmdw_t cmd) +{ + struct chp_cfg_sccb *sccb; + int rc; + + if (!SCLP_HAS_CHP_RECONFIG) + return -EOPNOTSUPP; + /* Prepare sccb. */ + sccb = (struct chp_cfg_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccb) + return -ENOMEM; + sccb->header.length = sizeof(*sccb); + rc = do_sync_request(cmd, sccb); + if (rc) + goto out; + switch (sccb->header.response_code) { + case 0x0020: + case 0x0120: + case 0x0440: + case 0x0450: + break; + default: + printk(KERN_WARNING TAG "configure channel-path failed " + "(cmd=0x%08x, response=0x%04x)\n", cmd, + sccb->header.response_code); + rc = -EIO; + break; + } +out: + free_page((unsigned long) sccb); + return rc; +} + +/** + * sclp_chp_configure - perform configure channel-path sclp command + * @chpid: channel-path ID + * + * Perform configure channel-path command sclp command for specified chpid. + * Return 0 after command successfully finished, non-zero otherwise. + */ +int sclp_chp_configure(struct chp_id chpid) +{ + return do_chp_configure(SCLP_CMDW_CONFIGURE_CHPATH | chpid.id << 8); +} + +/** + * sclp_chp_deconfigure - perform deconfigure channel-path sclp command + * @chpid: channel-path ID + * + * Perform deconfigure channel-path command sclp command for specified chpid + * and wait for completion. On success return 0. Return non-zero otherwise. + */ +int sclp_chp_deconfigure(struct chp_id chpid) +{ + return do_chp_configure(SCLP_CMDW_DECONFIGURE_CHPATH | chpid.id << 8); +} + +struct chp_info_sccb { + struct sccb_header header; + u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; + u8 standby[SCLP_CHP_INFO_MASK_SIZE]; + u8 configured[SCLP_CHP_INFO_MASK_SIZE]; + u8 ccm; + u8 reserved[6]; + u8 cssid; +} __attribute__((packed)); + +/** + * sclp_chp_read_info - perform read channel-path information sclp command + * @info: resulting channel-path information data + * + * Perform read channel-path information sclp command and wait for completion. + * On success, store channel-path information in @info and return 0. Return + * non-zero otherwise. + */ +int sclp_chp_read_info(struct sclp_chp_info *info) +{ + struct chp_info_sccb *sccb; + int rc; + + if (!SCLP_HAS_CHP_INFO) + return -EOPNOTSUPP; + /* Prepare sccb. */ + sccb = (struct chp_info_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccb) + return -ENOMEM; + sccb->header.length = sizeof(*sccb); + rc = do_sync_request(SCLP_CMDW_READ_CHPATH_INFORMATION, sccb); + if (rc) + goto out; + if (sccb->header.response_code != 0x0010) { + printk(KERN_WARNING TAG "read channel-path info failed " + "(response=0x%04x)\n", sccb->header.response_code); + rc = -EIO; + goto out; + } + memcpy(info->recognized, sccb->recognized, SCLP_CHP_INFO_MASK_SIZE); + memcpy(info->standby, sccb->standby, SCLP_CHP_INFO_MASK_SIZE); + memcpy(info->configured, sccb->configured, SCLP_CHP_INFO_MASK_SIZE); +out: + free_page((unsigned long) sccb); + return rc; +} diff --git a/drivers/s390/char/sclp_cpi.c b/drivers/s390/char/sclp_cpi.c index 82a13d9fdfe..5716487b8c9 100644 --- a/drivers/s390/char/sclp_cpi.c +++ b/drivers/s390/char/sclp_cpi.c @@ -1,255 +1,41 @@ /* - * Author: Martin Peschke <mpeschke@de.ibm.com> - * Copyright (C) 2001 IBM Entwicklung GmbH, IBM Corporation + * drivers/s390/char/sclp_cpi.c + * SCLP control programm identification * - * SCLP Control-Program Identification. + * Copyright IBM Corp. 2001, 2007 + * Author(s): Martin Peschke <mpeschke@de.ibm.com> + * Michael Ernst <mernst@de.ibm.com> */ -#include <linux/version.h> #include <linux/kmod.h> #include <linux/module.h> #include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/timer.h> -#include <linux/string.h> -#include <linux/err.h> -#include <linux/slab.h> -#include <asm/ebcdic.h> -#include <asm/semaphore.h> - -#include "sclp.h" -#include "sclp_rw.h" - -#define CPI_LENGTH_SYSTEM_TYPE 8 -#define CPI_LENGTH_SYSTEM_NAME 8 -#define CPI_LENGTH_SYSPLEX_NAME 8 - -struct cpi_evbuf { - struct evbuf_header header; - u8 id_format; - u8 reserved0; - u8 system_type[CPI_LENGTH_SYSTEM_TYPE]; - u64 reserved1; - u8 system_name[CPI_LENGTH_SYSTEM_NAME]; - u64 reserved2; - u64 system_level; - u64 reserved3; - u8 sysplex_name[CPI_LENGTH_SYSPLEX_NAME]; - u8 reserved4[16]; -} __attribute__((packed)); - -struct cpi_sccb { - struct sccb_header header; - struct cpi_evbuf cpi_evbuf; -} __attribute__((packed)); - -/* Event type structure for write message and write priority message */ -static struct sclp_register sclp_cpi_event = -{ - .send_mask = EVTYP_CTLPROGIDENT_MASK -}; +#include <linux/version.h> +#include "sclp_cpi_sys.h" MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Identify this operating system instance " + "to the System z hardware"); +MODULE_AUTHOR("Martin Peschke <mpeschke@de.ibm.com>, " + "Michael Ernst <mernst@de.ibm.com>"); -MODULE_AUTHOR( - "Martin Peschke, IBM Deutschland Entwicklung GmbH " - "<mpeschke@de.ibm.com>"); - -MODULE_DESCRIPTION( - "identify this operating system instance to the S/390 " - "or zSeries hardware"); +static char *system_name = ""; +static char *sysplex_name = ""; -static char *system_name = NULL; module_param(system_name, charp, 0); MODULE_PARM_DESC(system_name, "e.g. hostname - max. 8 characters"); - -static char *sysplex_name = NULL; -#ifdef ALLOW_SYSPLEX_NAME module_param(sysplex_name, charp, 0); MODULE_PARM_DESC(sysplex_name, "if applicable - max. 8 characters"); -#endif - -/* use default value for this field (as well as for system level) */ -static char *system_type = "LINUX"; -static int -cpi_check_parms(void) +static int __init cpi_module_init(void) { - /* reject if no system type specified */ - if (!system_type) { - printk("cpi: bug: no system type specified\n"); - return -EINVAL; - } - - /* reject if system type larger than 8 characters */ - if (strlen(system_type) > CPI_LENGTH_SYSTEM_NAME) { - printk("cpi: bug: system type has length of %li characters - " - "only %i characters supported\n", - strlen(system_type), CPI_LENGTH_SYSTEM_TYPE); - return -EINVAL; - } - - /* reject if no system name specified */ - if (!system_name) { - printk("cpi: no system name specified\n"); - return -EINVAL; - } - - /* reject if system name larger than 8 characters */ - if (strlen(system_name) > CPI_LENGTH_SYSTEM_NAME) { - printk("cpi: system name has length of %li characters - " - "only %i characters supported\n", - strlen(system_name), CPI_LENGTH_SYSTEM_NAME); - return -EINVAL; - } - - /* reject if specified sysplex name larger than 8 characters */ - if (sysplex_name && strlen(sysplex_name) > CPI_LENGTH_SYSPLEX_NAME) { - printk("cpi: sysplex name has length of %li characters" - " - only %i characters supported\n", - strlen(sysplex_name), CPI_LENGTH_SYSPLEX_NAME); - return -EINVAL; - } - return 0; + return sclp_cpi_set_data(system_name, sysplex_name, "LINUX", + LINUX_VERSION_CODE); } -static void -cpi_callback(struct sclp_req *req, void *data) -{ - struct semaphore *sem; - - sem = (struct semaphore *) data; - up(sem); -} - -static struct sclp_req * -cpi_prepare_req(void) -{ - struct sclp_req *req; - struct cpi_sccb *sccb; - struct cpi_evbuf *evb; - - req = kmalloc(sizeof(struct sclp_req), GFP_KERNEL); - if (req == NULL) - return ERR_PTR(-ENOMEM); - sccb = (struct cpi_sccb *) __get_free_page(GFP_KERNEL | GFP_DMA); - if (sccb == NULL) { - kfree(req); - return ERR_PTR(-ENOMEM); - } - memset(sccb, 0, sizeof(struct cpi_sccb)); - - /* setup SCCB for Control-Program Identification */ - sccb->header.length = sizeof(struct cpi_sccb); - sccb->cpi_evbuf.header.length = sizeof(struct cpi_evbuf); - sccb->cpi_evbuf.header.type = 0x0B; - evb = &sccb->cpi_evbuf; - - /* set system type */ - memset(evb->system_type, ' ', CPI_LENGTH_SYSTEM_TYPE); - memcpy(evb->system_type, system_type, strlen(system_type)); - sclp_ascebc_str(evb->system_type, CPI_LENGTH_SYSTEM_TYPE); - EBC_TOUPPER(evb->system_type, CPI_LENGTH_SYSTEM_TYPE); - - /* set system name */ - memset(evb->system_name, ' ', CPI_LENGTH_SYSTEM_NAME); - memcpy(evb->system_name, system_name, strlen(system_name)); - sclp_ascebc_str(evb->system_name, CPI_LENGTH_SYSTEM_NAME); - EBC_TOUPPER(evb->system_name, CPI_LENGTH_SYSTEM_NAME); - - /* set system level */ - evb->system_level = LINUX_VERSION_CODE; - - /* set sysplex name */ - if (sysplex_name) { - memset(evb->sysplex_name, ' ', CPI_LENGTH_SYSPLEX_NAME); - memcpy(evb->sysplex_name, sysplex_name, strlen(sysplex_name)); - sclp_ascebc_str(evb->sysplex_name, CPI_LENGTH_SYSPLEX_NAME); - EBC_TOUPPER(evb->sysplex_name, CPI_LENGTH_SYSPLEX_NAME); - } - - /* prepare request data structure presented to SCLP driver */ - req->command = SCLP_CMDW_WRITE_EVENT_DATA; - req->sccb = sccb; - req->status = SCLP_REQ_FILLED; - req->callback = cpi_callback; - return req; -} - -static void -cpi_free_req(struct sclp_req *req) -{ - free_page((unsigned long) req->sccb); - kfree(req); -} - -static int __init -cpi_module_init(void) -{ - struct semaphore sem; - struct sclp_req *req; - int rc; - - rc = cpi_check_parms(); - if (rc) - return rc; - - rc = sclp_register(&sclp_cpi_event); - if (rc) { - /* could not register sclp event. Die. */ - printk(KERN_WARNING "cpi: could not register to hardware " - "console.\n"); - return -EINVAL; - } - if (!(sclp_cpi_event.sclp_send_mask & EVTYP_CTLPROGIDENT_MASK)) { - printk(KERN_WARNING "cpi: no control program identification " - "support\n"); - sclp_unregister(&sclp_cpi_event); - return -EOPNOTSUPP; - } - - req = cpi_prepare_req(); - if (IS_ERR(req)) { - printk(KERN_WARNING "cpi: couldn't allocate request\n"); - sclp_unregister(&sclp_cpi_event); - return PTR_ERR(req); - } - - /* Prepare semaphore */ - sema_init(&sem, 0); - req->callback_data = &sem; - /* Add request to sclp queue */ - rc = sclp_add_request(req); - if (rc) { - printk(KERN_WARNING "cpi: could not start request\n"); - cpi_free_req(req); - sclp_unregister(&sclp_cpi_event); - return rc; - } - /* make "insmod" sleep until callback arrives */ - down(&sem); - - rc = ((struct cpi_sccb *) req->sccb)->header.response_code; - if (rc != 0x0020) { - printk(KERN_WARNING "cpi: failed with response code 0x%x\n", - rc); - rc = -ECOMM; - } else - rc = 0; - - cpi_free_req(req); - sclp_unregister(&sclp_cpi_event); - - return rc; -} - - static void __exit cpi_module_exit(void) { } - -/* declare driver module init/cleanup functions */ module_init(cpi_module_init); module_exit(cpi_module_exit); - diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c new file mode 100644 index 00000000000..41617032afd --- /dev/null +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -0,0 +1,400 @@ +/* + * drivers/s390/char/sclp_cpi_sys.c + * SCLP control program identification sysfs interface + * + * Copyright IBM Corp. 2001, 2007 + * Author(s): Martin Peschke <mpeschke@de.ibm.com> + * Michael Ernst <mernst@de.ibm.com> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/stat.h> +#include <linux/device.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/kmod.h> +#include <linux/timer.h> +#include <linux/err.h> +#include <linux/slab.h> +#include <linux/completion.h> +#include <asm/ebcdic.h> +#include <asm/sclp.h> +#include "sclp.h" +#include "sclp_rw.h" +#include "sclp_cpi_sys.h" + +#define CPI_LENGTH_NAME 8 +#define CPI_LENGTH_LEVEL 16 + +struct cpi_evbuf { + struct evbuf_header header; + u8 id_format; + u8 reserved0; + u8 system_type[CPI_LENGTH_NAME]; + u64 reserved1; + u8 system_name[CPI_LENGTH_NAME]; + u64 reserved2; + u64 system_level; + u64 reserved3; + u8 sysplex_name[CPI_LENGTH_NAME]; + u8 reserved4[16]; +} __attribute__((packed)); + +struct cpi_sccb { + struct sccb_header header; + struct cpi_evbuf cpi_evbuf; +} __attribute__((packed)); + +static struct sclp_register sclp_cpi_event = { + .send_mask = EVTYP_CTLPROGIDENT_MASK, +}; + +static char system_name[CPI_LENGTH_NAME + 1]; +static char sysplex_name[CPI_LENGTH_NAME + 1]; +static char system_type[CPI_LENGTH_NAME + 1]; +static u64 system_level; + +static void set_data(char *field, char *data) +{ + memset(field, ' ', CPI_LENGTH_NAME); + memcpy(field, data, strlen(data)); + sclp_ascebc_str(field, CPI_LENGTH_NAME); +} + +static void cpi_callback(struct sclp_req *req, void *data) +{ + struct completion *completion = data; + + complete(completion); +} + +static struct sclp_req *cpi_prepare_req(void) +{ + struct sclp_req *req; + struct cpi_sccb *sccb; + struct cpi_evbuf *evb; + + req = kzalloc(sizeof(struct sclp_req), GFP_KERNEL); + if (!req) + return ERR_PTR(-ENOMEM); + sccb = (struct cpi_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccb) { + kfree(req); + return ERR_PTR(-ENOMEM); + } + + /* setup SCCB for Control-Program Identification */ + sccb->header.length = sizeof(struct cpi_sccb); + sccb->cpi_evbuf.header.length = sizeof(struct cpi_evbuf); + sccb->cpi_evbuf.header.type = 0x0b; + evb = &sccb->cpi_evbuf; + + /* set system type */ + set_data(evb->system_type, system_type); + + /* set system name */ + set_data(evb->system_name, system_name); + + /* set sytem level */ + evb->system_level = system_level; + + /* set sysplex name */ + set_data(evb->sysplex_name, sysplex_name); + + /* prepare request data structure presented to SCLP driver */ + req->command = SCLP_CMDW_WRITE_EVENT_DATA; + req->sccb = sccb; + req->status = SCLP_REQ_FILLED; + req->callback = cpi_callback; + return req; +} + +static void cpi_free_req(struct sclp_req *req) +{ + free_page((unsigned long) req->sccb); + kfree(req); +} + +static int cpi_req(void) +{ + struct completion completion; + struct sclp_req *req; + int rc; + int response; + + rc = sclp_register(&sclp_cpi_event); + if (rc) { + printk(KERN_WARNING "cpi: could not register " + "to hardware console.\n"); + goto out; + } + if (!(sclp_cpi_event.sclp_send_mask & EVTYP_CTLPROGIDENT_MASK)) { + printk(KERN_WARNING "cpi: no control program " + "identification support\n"); + rc = -EOPNOTSUPP; + goto out_unregister; + } + + req = cpi_prepare_req(); + if (IS_ERR(req)) { + printk(KERN_WARNING "cpi: could not allocate request\n"); + rc = PTR_ERR(req); + goto out_unregister; + } + + init_completion(&completion); + req->callback_data = &completion; + + /* Add request to sclp queue */ + rc = sclp_add_request(req); + if (rc) { + printk(KERN_WARNING "cpi: could not start request\n"); + goto out_free_req; + } + + wait_for_completion(&completion); + + if (req->status != SCLP_REQ_DONE) { + printk(KERN_WARNING "cpi: request failed (status=0x%02x)\n", + req->status); + rc = -EIO; + goto out_free_req; + } + + response = ((struct cpi_sccb *) req->sccb)->header.response_code; + if (response != 0x0020) { + printk(KERN_WARNING "cpi: failed with " + "response code 0x%x\n", response); + rc = -EIO; + } + +out_free_req: + cpi_free_req(req); + +out_unregister: + sclp_unregister(&sclp_cpi_event); + +out: + return rc; +} + +static int check_string(const char *attr, const char *str) +{ + size_t len; + size_t i; + + len = strlen(str); + + if ((len > 0) && (str[len - 1] == '\n')) + len--; + + if (len > CPI_LENGTH_NAME) + return -EINVAL; + + for (i = 0; i < len ; i++) { + if (isalpha(str[i]) || isdigit(str[i]) || + strchr("$@# ", str[i])) + continue; + return -EINVAL; + } + + return 0; +} + +static void set_string(char *attr, const char *value) +{ + size_t len; + size_t i; + + len = strlen(value); + + if ((len > 0) && (value[len - 1] == '\n')) + len--; + + for (i = 0; i < CPI_LENGTH_NAME; i++) { + if (i < len) + attr[i] = toupper(value[i]); + else + attr[i] = ' '; + } +} + +static ssize_t system_name_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return snprintf(page, PAGE_SIZE, "%s\n", system_name); +} + +static ssize_t system_name_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, + size_t len) +{ + int rc; + + rc = check_string("system_name", buf); + if (rc) + return rc; + + set_string(system_name, buf); + + return len; +} + +static struct kobj_attribute system_name_attr = + __ATTR(system_name, 0644, system_name_show, system_name_store); + +static ssize_t sysplex_name_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return snprintf(page, PAGE_SIZE, "%s\n", sysplex_name); +} + +static ssize_t sysplex_name_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, + size_t len) +{ + int rc; + + rc = check_string("sysplex_name", buf); + if (rc) + return rc; + + set_string(sysplex_name, buf); + + return len; +} + +static struct kobj_attribute sysplex_name_attr = + __ATTR(sysplex_name, 0644, sysplex_name_show, sysplex_name_store); + +static ssize_t system_type_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + return snprintf(page, PAGE_SIZE, "%s\n", system_type); +} + +static ssize_t system_type_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, + size_t len) +{ + int rc; + + rc = check_string("system_type", buf); + if (rc) + return rc; + + set_string(system_type, buf); + + return len; +} + +static struct kobj_attribute system_type_attr = + __ATTR(system_type, 0644, system_type_show, system_type_store); + +static ssize_t system_level_show(struct kobject *kobj, + struct kobj_attribute *attr, char *page) +{ + unsigned long long level = system_level; + + return snprintf(page, PAGE_SIZE, "%#018llx\n", level); +} + +static ssize_t system_level_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, + size_t len) +{ + unsigned long long level; + char *endp; + + level = simple_strtoull(buf, &endp, 16); + + if (endp == buf) + return -EINVAL; + if (*endp == '\n') + endp++; + if (*endp) + return -EINVAL; + + system_level = level; + + return len; +} + +static struct kobj_attribute system_level_attr = + __ATTR(system_level, 0644, system_level_show, system_level_store); + +static ssize_t set_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t len) +{ + int rc; + + rc = cpi_req(); + if (rc) + return rc; + + return len; +} + +static struct kobj_attribute set_attr = __ATTR(set, 0200, NULL, set_store); + +static struct attribute *cpi_attrs[] = { + &system_name_attr.attr, + &sysplex_name_attr.attr, + &system_type_attr.attr, + &system_level_attr.attr, + &set_attr.attr, + NULL, +}; + +static struct attribute_group cpi_attr_group = { + .attrs = cpi_attrs, +}; + +static struct kset *cpi_kset; + +int sclp_cpi_set_data(const char *system, const char *sysplex, const char *type, + const u64 level) +{ + int rc; + + rc = check_string("system_name", system); + if (rc) + return rc; + rc = check_string("sysplex_name", sysplex); + if (rc) + return rc; + rc = check_string("system_type", type); + if (rc) + return rc; + + set_string(system_name, system); + set_string(sysplex_name, sysplex); + set_string(system_type, type); + system_level = level; + + return cpi_req(); +} +EXPORT_SYMBOL(sclp_cpi_set_data); + +static int __init cpi_init(void) +{ + int rc; + + cpi_kset = kset_create_and_add("cpi", NULL, firmware_kobj); + if (!cpi_kset) + return -ENOMEM; + + rc = sysfs_create_group(&cpi_kset->kobj, &cpi_attr_group); + if (rc) + kset_unregister(cpi_kset); + + return rc; +} + +__initcall(cpi_init); diff --git a/drivers/s390/char/sclp_cpi_sys.h b/drivers/s390/char/sclp_cpi_sys.h new file mode 100644 index 00000000000..deef3e6ff49 --- /dev/null +++ b/drivers/s390/char/sclp_cpi_sys.h @@ -0,0 +1,15 @@ +/* + * drivers/s390/char/sclp_cpi_sys.h + * SCLP control program identification sysfs interface + * + * Copyright IBM Corp. 2007 + * Author(s): Michael Ernst <mernst@de.ibm.com> + */ + +#ifndef __SCLP_CPI_SYS_H__ +#define __SCLP_CPI_SYS_H__ + +int sclp_cpi_set_data(const char *system, const char *sysplex, + const char *type, u64 level); + +#endif /* __SCLP_CPI_SYS_H__ */ diff --git a/drivers/s390/char/sclp_info.c b/drivers/s390/char/sclp_info.c deleted file mode 100644 index a1136e05275..00000000000 --- a/drivers/s390/char/sclp_info.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * drivers/s390/char/sclp_info.c - * - * Copyright IBM Corp. 2007 - * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> - */ - -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <asm/sclp.h> -#include "sclp.h" - -struct sclp_readinfo_sccb { - struct sccb_header header; /* 0-7 */ - u16 rnmax; /* 8-9 */ - u8 rnsize; /* 10 */ - u8 _reserved0[24 - 11]; /* 11-23 */ - u8 loadparm[8]; /* 24-31 */ - u8 _reserved1[48 - 32]; /* 32-47 */ - u64 facilities; /* 48-55 */ - u8 _reserved2[91 - 56]; /* 56-90 */ - u8 flags; /* 91 */ - u8 _reserved3[100 - 92]; /* 92-99 */ - u32 rnsize2; /* 100-103 */ - u64 rnmax2; /* 104-111 */ - u8 _reserved4[4096 - 112]; /* 112-4095 */ -} __attribute__((packed, aligned(4096))); - -static struct sclp_readinfo_sccb __initdata early_readinfo_sccb; -static int __initdata early_readinfo_sccb_valid; - -u64 sclp_facilities; - -void __init sclp_readinfo_early(void) -{ - int ret; - int i; - struct sclp_readinfo_sccb *sccb; - sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED, - SCLP_CMDW_READ_SCP_INFO}; - - /* Enable service signal subclass mask. */ - __ctl_set_bit(0, 9); - sccb = &early_readinfo_sccb; - for (i = 0; i < ARRAY_SIZE(commands); i++) { - do { - memset(sccb, 0, sizeof(*sccb)); - sccb->header.length = sizeof(*sccb); - sccb->header.control_mask[2] = 0x80; - ret = sclp_service_call(commands[i], sccb); - } while (ret == -EBUSY); - - if (ret) - break; - __load_psw_mask(PSW_BASE_BITS | PSW_MASK_EXT | - PSW_MASK_WAIT | PSW_DEFAULT_KEY); - local_irq_disable(); - /* - * Contents of the sccb might have changed - * therefore a barrier is needed. - */ - barrier(); - if (sccb->header.response_code == 0x10) { - early_readinfo_sccb_valid = 1; - break; - } - if (sccb->header.response_code != 0x1f0) - break; - } - /* Disable service signal subclass mask again. */ - __ctl_clear_bit(0, 9); -} - -void __init sclp_facilities_detect(void) -{ - if (!early_readinfo_sccb_valid) - return; - sclp_facilities = early_readinfo_sccb.facilities; -} - -unsigned long long __init sclp_memory_detect(void) -{ - unsigned long long memsize; - struct sclp_readinfo_sccb *sccb; - - if (!early_readinfo_sccb_valid) - return 0; - sccb = &early_readinfo_sccb; - if (sccb->rnsize) - memsize = sccb->rnsize << 20; - else - memsize = sccb->rnsize2 << 20; - if (sccb->rnmax) - memsize *= sccb->rnmax; - else - memsize *= sccb->rnmax2; - return memsize; -} - -/* - * This function will be called after sclp_memory_detect(), which gets called - * early from early.c code. Therefore the sccb should have valid contents. - */ -void __init sclp_get_ipl_info(struct sclp_ipl_info *info) -{ - struct sclp_readinfo_sccb *sccb; - - if (!early_readinfo_sccb_valid) - return; - sccb = &early_readinfo_sccb; - info->is_valid = 1; - if (sccb->flags & 0x2) - info->has_dump = 1; - memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN); -} diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c index d6b06ab8118..ad7195d3de0 100644 --- a/drivers/s390/char/sclp_rw.c +++ b/drivers/s390/char/sclp_rw.c @@ -76,7 +76,7 @@ sclp_make_buffer(void *page, unsigned short columns, unsigned short htab) } /* - * Return a pointer to the orignal page that has been used to create + * Return a pointer to the original page that has been used to create * the buffer. */ void * diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index da25f8e2415..8246ef3ab09 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -1495,7 +1495,7 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request, device->cdev->dev.bus_id); return tape_3590_erp_basic(device, request, irb, -EPERM); case 0x8013: - PRINT_WARN("(%s): Another host has priviliged access to the " + PRINT_WARN("(%s): Another host has privileged access to the " "tape device\n", device->cdev->dev.bus_id); PRINT_WARN("(%s): To solve the problem unload the current " "cartridge!\n", device->cdev->dev.bus_id); diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index 2fae6338ee1..7ad8cf15764 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -37,7 +37,7 @@ static void tape_long_busy_timeout(unsigned long data); * we can assign the devices to minor numbers of the same major * The list is protected by the rwlock */ -static struct list_head tape_device_list = LIST_HEAD_INIT(tape_device_list); +static LIST_HEAD(tape_device_list); static DEFINE_RWLOCK(tape_device_lock); /* diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c index cea49f001f8..c9b96d51b28 100644 --- a/drivers/s390/char/tape_proc.c +++ b/drivers/s390/char/tape_proc.c @@ -97,7 +97,7 @@ static void tape_proc_stop(struct seq_file *m, void *v) { } -static struct seq_operations tape_proc_seq = { +static const struct seq_operations tape_proc_seq = { .start = tape_proc_start, .next = tape_proc_next, .stop = tape_proc_stop, diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index e0c4c508e12..d364e0bfae1 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -683,7 +683,7 @@ static int vmlogrdr_register_driver(void) /* Register with iucv driver */ ret = iucv_register(&vmlogrdr_iucv_handler, 1); if (ret) { - printk (KERN_ERR "vmlogrdr: failed to register with" + printk (KERN_ERR "vmlogrdr: failed to register with " "iucv driver\n"); goto out; } diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index d70a6e65bf1..7689b500a10 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -759,7 +759,7 @@ static loff_t ur_llseek(struct file *file, loff_t offset, int whence) return newpos; } -static struct file_operations ur_fops = { +static const struct file_operations ur_fops = { .owner = THIS_MODULE, .open = ur_open, .release = ur_release, diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 7073daf7798..f523501e6e6 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -470,7 +470,7 @@ static loff_t zcore_lseek(struct file *file, loff_t offset, int orig) return rc; } -static struct file_operations zcore_fops = { +static const struct file_operations zcore_fops = { .owner = THIS_MODULE, .llseek = zcore_lseek, .read = zcore_read, diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index 5287631fbfc..b7a07a86629 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -1,12 +1,12 @@ /* * drivers/s390/cio/airq.c - * S/390 common I/O routines -- support for adapter interruptions + * Support for adapter interruptions * - * Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation - * Author(s): Ingo Adlung (adlung@de.ibm.com) - * Cornelia Huck (cornelia.huck@de.ibm.com) - * Arnd Bergmann (arndb@de.ibm.com) + * Copyright IBM Corp. 1999,2007 + * Author(s): Ingo Adlung <adlung@de.ibm.com> + * Cornelia Huck <cornelia.huck@de.ibm.com> + * Arnd Bergmann <arndb@de.ibm.com> + * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ #include <linux/init.h> @@ -14,72 +14,131 @@ #include <linux/slab.h> #include <linux/rcupdate.h> +#include <asm/airq.h> + +#include "cio.h" #include "cio_debug.h" -#include "airq.h" -static adapter_int_handler_t adapter_handler; +#define NR_AIRQS 32 +#define NR_AIRQS_PER_WORD sizeof(unsigned long) +#define NR_AIRQ_WORDS (NR_AIRQS / NR_AIRQS_PER_WORD) -/* - * register for adapter interrupts - * - * With HiperSockets the zSeries architecture provides for - * means of adapter interrups, pseudo I/O interrupts that are - * not tied to an I/O subchannel, but to an adapter. However, - * it doesn't disclose the info how to enable/disable them, but - * to recognize them only. Perhaps we should consider them - * being shared interrupts, and thus build a linked list - * of adapter handlers ... to be evaluated ... - */ -int -s390_register_adapter_interrupt (adapter_int_handler_t handler) -{ - int ret; - char dbf_txt[15]; +union indicator_t { + unsigned long word[NR_AIRQ_WORDS]; + unsigned char byte[NR_AIRQS]; +} __attribute__((packed)); - CIO_TRACE_EVENT (4, "rgaint"); +struct airq_t { + adapter_int_handler_t handler; + void *drv_data; +}; - if (handler == NULL) - ret = -EINVAL; - else - ret = (cmpxchg(&adapter_handler, NULL, handler) ? -EBUSY : 0); - if (!ret) - synchronize_sched(); /* Allow interrupts to complete. */ +static union indicator_t indicators; +static struct airq_t *airqs[NR_AIRQS]; - sprintf (dbf_txt, "ret:%d", ret); - CIO_TRACE_EVENT (4, dbf_txt); +static int register_airq(struct airq_t *airq) +{ + int i; - return ret; + for (i = 0; i < NR_AIRQS; i++) + if (!cmpxchg(&airqs[i], NULL, airq)) + return i; + return -ENOMEM; } -int -s390_unregister_adapter_interrupt (adapter_int_handler_t handler) +/** + * s390_register_adapter_interrupt() - register adapter interrupt handler + * @handler: adapter handler to be registered + * @drv_data: driver data passed with each call to the handler + * + * Returns: + * Pointer to the indicator to be used on success + * ERR_PTR() if registration failed + */ +void *s390_register_adapter_interrupt(adapter_int_handler_t handler, + void *drv_data) { + struct airq_t *airq; + char dbf_txt[16]; int ret; - char dbf_txt[15]; - CIO_TRACE_EVENT (4, "urgaint"); - - if (handler == NULL) - ret = -EINVAL; - else { - adapter_handler = NULL; - synchronize_sched(); /* Allow interrupts to complete. */ - ret = 0; + airq = kmalloc(sizeof(struct airq_t), GFP_KERNEL); + if (!airq) { + ret = -ENOMEM; + goto out; } - sprintf (dbf_txt, "ret:%d", ret); - CIO_TRACE_EVENT (4, dbf_txt); - - return ret; + airq->handler = handler; + airq->drv_data = drv_data; + ret = register_airq(airq); + if (ret < 0) + kfree(airq); +out: + snprintf(dbf_txt, sizeof(dbf_txt), "rairq:%d", ret); + CIO_TRACE_EVENT(4, dbf_txt); + if (ret < 0) + return ERR_PTR(ret); + else + return &indicators.byte[ret]; } +EXPORT_SYMBOL(s390_register_adapter_interrupt); -void -do_adapter_IO (void) +/** + * s390_unregister_adapter_interrupt - unregister adapter interrupt handler + * @ind: indicator for which the handler is to be unregistered + */ +void s390_unregister_adapter_interrupt(void *ind) { - CIO_TRACE_EVENT (6, "doaio"); + struct airq_t *airq; + char dbf_txt[16]; + int i; - if (adapter_handler) - (*adapter_handler) (); + i = (int) ((addr_t) ind) - ((addr_t) &indicators.byte[0]); + snprintf(dbf_txt, sizeof(dbf_txt), "urairq:%d", i); + CIO_TRACE_EVENT(4, dbf_txt); + indicators.byte[i] = 0; + airq = xchg(&airqs[i], NULL); + /* + * Allow interrupts to complete. This will ensure that the airq handle + * is no longer referenced by any interrupt handler. + */ + synchronize_sched(); + kfree(airq); } +EXPORT_SYMBOL(s390_unregister_adapter_interrupt); + +#define INDICATOR_MASK (0xffUL << ((NR_AIRQS_PER_WORD - 1) * 8)) -EXPORT_SYMBOL (s390_register_adapter_interrupt); -EXPORT_SYMBOL (s390_unregister_adapter_interrupt); +void do_adapter_IO(void) +{ + int w; + int i; + unsigned long word; + struct airq_t *airq; + + /* + * Access indicator array in word-sized chunks to minimize storage + * fetch operations. + */ + for (w = 0; w < NR_AIRQ_WORDS; w++) { + word = indicators.word[w]; + i = w * NR_AIRQS_PER_WORD; + /* + * Check bytes within word for active indicators. + */ + while (word) { + if (word & INDICATOR_MASK) { + airq = airqs[i]; + if (likely(airq)) + airq->handler(&indicators.byte[i], + airq->drv_data); + else + /* + * Reset ill-behaved indicator. + */ + indicators.byte[i] = 0; + } + word <<= 8; + i++; + } + } +} diff --git a/drivers/s390/cio/airq.h b/drivers/s390/cio/airq.h deleted file mode 100644 index 7d6be3fdcd6..00000000000 --- a/drivers/s390/cio/airq.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef S390_AINTERRUPT_H -#define S390_AINTERRUPT_H - -typedef int (*adapter_int_handler_t)(void); - -extern int s390_register_adapter_interrupt(adapter_int_handler_t handler); -extern int s390_unregister_adapter_interrupt(adapter_int_handler_t handler); -extern void do_adapter_IO (void); - -#endif diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index bd5f16f80bf..e8597ec9224 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -348,7 +348,7 @@ cio_ignore_write(struct file *file, const char __user *user_buf, return user_len; } -static struct seq_operations cio_ignore_proc_seq_ops = { +static const struct seq_operations cio_ignore_proc_seq_ops = { .start = cio_ignore_proc_seq_start, .stop = cio_ignore_proc_seq_stop, .next = cio_ignore_proc_seq_next, diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 5baa517c3b6..3964056a9a4 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -35,8 +35,8 @@ ccwgroup_bus_match (struct device * dev, struct device_driver * drv) struct ccwgroup_device *gdev; struct ccwgroup_driver *gdrv; - gdev = container_of(dev, struct ccwgroup_device, dev); - gdrv = container_of(drv, struct ccwgroup_driver, driver); + gdev = to_ccwgroupdev(dev); + gdrv = to_ccwgroupdrv(drv); if (gdev->creator_id == gdrv->driver_id) return 1; @@ -75,8 +75,10 @@ static void ccwgroup_ungroup_callback(struct device *dev) struct ccwgroup_device *gdev = to_ccwgroupdev(dev); mutex_lock(&gdev->reg_mutex); - __ccwgroup_remove_symlinks(gdev); - device_unregister(dev); + if (device_is_registered(&gdev->dev)) { + __ccwgroup_remove_symlinks(gdev); + device_unregister(dev); + } mutex_unlock(&gdev->reg_mutex); } @@ -111,7 +113,7 @@ ccwgroup_release (struct device *dev) gdev = to_ccwgroupdev(dev); for (i = 0; i < gdev->count; i++) { - gdev->cdev[i]->dev.driver_data = NULL; + dev_set_drvdata(&gdev->cdev[i]->dev, NULL); put_device(&gdev->cdev[i]->dev); } kfree(gdev); @@ -196,11 +198,11 @@ int ccwgroup_create(struct device *root, unsigned int creator_id, goto error; } /* Don't allow a device to belong to more than one group. */ - if (gdev->cdev[i]->dev.driver_data) { + if (dev_get_drvdata(&gdev->cdev[i]->dev)) { rc = -EINVAL; goto error; } - gdev->cdev[i]->dev.driver_data = gdev; + dev_set_drvdata(&gdev->cdev[i]->dev, gdev); } gdev->creator_id = creator_id; @@ -234,8 +236,8 @@ int ccwgroup_create(struct device *root, unsigned int creator_id, error: for (i = 0; i < argc; i++) if (gdev->cdev[i]) { - if (gdev->cdev[i]->dev.driver_data == gdev) - gdev->cdev[i]->dev.driver_data = NULL; + if (dev_get_drvdata(&gdev->cdev[i]->dev) == gdev) + dev_set_drvdata(&gdev->cdev[i]->dev, NULL); put_device(&gdev->cdev[i]->dev); } mutex_unlock(&gdev->reg_mutex); @@ -408,6 +410,7 @@ int ccwgroup_driver_register(struct ccwgroup_driver *cdriver) /* register our new driver with the core */ cdriver->driver.bus = &ccwgroup_bus_type; cdriver->driver.name = cdriver->name; + cdriver->driver.owner = cdriver->owner; return driver_register(&cdriver->driver); } @@ -463,8 +466,8 @@ __ccwgroup_get_gdev_by_cdev(struct ccw_device *cdev) { struct ccwgroup_device *gdev; - if (cdev->dev.driver_data) { - gdev = (struct ccwgroup_device *)cdev->dev.driver_data; + gdev = dev_get_drvdata(&cdev->dev); + if (gdev) { if (get_device(&gdev->dev)) { mutex_lock(&gdev->reg_mutex); if (device_is_registered(&gdev->dev)) diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 597c0c76a2a..e7ba16a74ef 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -89,7 +89,8 @@ int chsc_get_ssd_info(struct subchannel_id schid, struct chsc_ssd_info *ssd) /* Copy data */ ret = 0; memset(ssd, 0, sizeof(struct chsc_ssd_info)); - if ((ssd_area->st != 0) && (ssd_area->st != 2)) + if ((ssd_area->st != SUBCHANNEL_TYPE_IO) && + (ssd_area->st != SUBCHANNEL_TYPE_MSG)) goto out_free; ssd->path_mask = ssd_area->path_mask; ssd->fla_valid_mask = ssd_area->fla_valid_mask; @@ -132,20 +133,16 @@ static void terminate_internal_io(struct subchannel *sch) device_set_intretry(sch); /* Call handler. */ if (sch->driver && sch->driver->termination) - sch->driver->termination(&sch->dev); + sch->driver->termination(sch); } -static int -s390_subchannel_remove_chpid(struct device *dev, void *data) +static int s390_subchannel_remove_chpid(struct subchannel *sch, void *data) { int j; int mask; - struct subchannel *sch; - struct chp_id *chpid; + struct chp_id *chpid = data; struct schib schib; - sch = to_subchannel(dev); - chpid = data; for (j = 0; j < 8; j++) { mask = 0x80 >> j; if ((sch->schib.pmcw.pim & mask) && @@ -158,7 +155,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) spin_lock_irq(sch->lock); stsch(sch->schid, &schib); - if (!schib.pmcw.dnv) + if (!css_sch_is_valid(&schib)) goto out_unreg; memcpy(&sch->schib, &schib, sizeof(struct schib)); /* Check for single path devices. */ @@ -172,12 +169,12 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) terminate_internal_io(sch); /* Re-start path verification. */ if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); } } else { /* trigger path verification. */ if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); else if (sch->lpm == mask) goto out_unreg; } @@ -201,12 +198,10 @@ void chsc_chp_offline(struct chp_id chpid) if (chp_get_status(chpid) <= 0) return; - bus_for_each_dev(&css_bus_type, NULL, &chpid, - s390_subchannel_remove_chpid); + for_each_subchannel_staged(s390_subchannel_remove_chpid, NULL, &chpid); } -static int -s390_process_res_acc_new_sch(struct subchannel_id schid) +static int s390_process_res_acc_new_sch(struct subchannel_id schid, void *data) { struct schib schib; /* @@ -252,18 +247,10 @@ static int get_res_chpid_mask(struct chsc_ssd_info *ssd, return 0; } -static int -__s390_process_res_acc(struct subchannel_id schid, void *data) +static int __s390_process_res_acc(struct subchannel *sch, void *data) { int chp_mask, old_lpm; - struct res_acc_data *res_data; - struct subchannel *sch; - - res_data = data; - sch = get_subchannel_by_schid(schid); - if (!sch) - /* Check if a subchannel is newly available. */ - return s390_process_res_acc_new_sch(schid); + struct res_acc_data *res_data = data; spin_lock_irq(sch->lock); chp_mask = get_res_chpid_mask(&sch->ssd_info, res_data); @@ -279,10 +266,10 @@ __s390_process_res_acc(struct subchannel_id schid, void *data) if (!old_lpm && sch->lpm) device_trigger_reprobe(sch); else if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); out: spin_unlock_irq(sch->lock); - put_device(&sch->dev); + return 0; } @@ -305,7 +292,8 @@ static void s390_process_res_acc (struct res_acc_data *res_data) * The more information we have (info), the less scanning * will we have to do. */ - for_each_subchannel(__s390_process_res_acc, res_data); + for_each_subchannel_staged(__s390_process_res_acc, + s390_process_res_acc_new_sch, res_data); } static int @@ -499,8 +487,7 @@ void chsc_process_crw(void) } while (sei_area->flags & 0x80); } -static int -__chp_add_new_sch(struct subchannel_id schid) +static int __chp_add_new_sch(struct subchannel_id schid, void *data) { struct schib schib; @@ -514,45 +501,37 @@ __chp_add_new_sch(struct subchannel_id schid) } -static int -__chp_add(struct subchannel_id schid, void *data) +static int __chp_add(struct subchannel *sch, void *data) { int i, mask; - struct chp_id *chpid; - struct subchannel *sch; - - chpid = data; - sch = get_subchannel_by_schid(schid); - if (!sch) - /* Check if the subchannel is now available. */ - return __chp_add_new_sch(schid); + struct chp_id *chpid = data; + spin_lock_irq(sch->lock); for (i=0; i<8; i++) { mask = 0x80 >> i; if ((sch->schib.pmcw.pim & mask) && - (sch->schib.pmcw.chpid[i] == chpid->id)) { - if (stsch(sch->schid, &sch->schib) != 0) { - /* Endgame. */ - spin_unlock_irq(sch->lock); - return -ENXIO; - } + (sch->schib.pmcw.chpid[i] == chpid->id)) break; - } } if (i==8) { spin_unlock_irq(sch->lock); return 0; } + if (stsch(sch->schid, &sch->schib)) { + spin_unlock_irq(sch->lock); + css_schedule_eval(sch->schid); + return 0; + } sch->lpm = ((sch->schib.pmcw.pim & sch->schib.pmcw.pam & sch->schib.pmcw.pom) | mask) & sch->opm; if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); spin_unlock_irq(sch->lock); - put_device(&sch->dev); + return 0; } @@ -564,7 +543,8 @@ void chsc_chp_online(struct chp_id chpid) CIO_TRACE_EVENT(2, dbf_txt); if (chp_get_status(chpid) != 0) - for_each_subchannel(__chp_add, &chpid); + for_each_subchannel_staged(__chp_add, __chp_add_new_sch, + &chpid); } static void __s390_subchannel_vary_chpid(struct subchannel *sch, @@ -589,7 +569,7 @@ static void __s390_subchannel_vary_chpid(struct subchannel *sch, if (!old_lpm) device_trigger_reprobe(sch); else if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); break; } sch->opm &= ~mask; @@ -603,37 +583,29 @@ static void __s390_subchannel_vary_chpid(struct subchannel *sch, terminate_internal_io(sch); /* Re-start path verification. */ if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); } } else if (!sch->lpm) { if (device_trigger_verify(sch) != 0) css_schedule_eval(sch->schid); } else if (sch->driver && sch->driver->verify) - sch->driver->verify(&sch->dev); + sch->driver->verify(sch); break; } spin_unlock_irqrestore(sch->lock, flags); } -static int s390_subchannel_vary_chpid_off(struct device *dev, void *data) +static int s390_subchannel_vary_chpid_off(struct subchannel *sch, void *data) { - struct subchannel *sch; - struct chp_id *chpid; - - sch = to_subchannel(dev); - chpid = data; + struct chp_id *chpid = data; __s390_subchannel_vary_chpid(sch, *chpid, 0); return 0; } -static int s390_subchannel_vary_chpid_on(struct device *dev, void *data) +static int s390_subchannel_vary_chpid_on(struct subchannel *sch, void *data) { - struct subchannel *sch; - struct chp_id *chpid; - - sch = to_subchannel(dev); - chpid = data; + struct chp_id *chpid = data; __s390_subchannel_vary_chpid(sch, *chpid, 1); return 0; @@ -643,13 +615,7 @@ static int __s390_vary_chpid_on(struct subchannel_id schid, void *data) { struct schib schib; - struct subchannel *sch; - sch = get_subchannel_by_schid(schid); - if (sch) { - put_device(&sch->dev); - return 0; - } if (stsch_err(schid, &schib)) /* We're through */ return -ENXIO; @@ -669,12 +635,13 @@ int chsc_chp_vary(struct chp_id chpid, int on) * Redo PathVerification on the devices the chpid connects to */ - bus_for_each_dev(&css_bus_type, NULL, &chpid, on ? - s390_subchannel_vary_chpid_on : - s390_subchannel_vary_chpid_off); if (on) - /* Scan for new devices on varied on path. */ - for_each_subchannel(__s390_vary_chpid_on, NULL); + for_each_subchannel_staged(s390_subchannel_vary_chpid_on, + __s390_vary_chpid_on, &chpid); + else + for_each_subchannel_staged(s390_subchannel_vary_chpid_off, + NULL, &chpid); + return 0; } @@ -1075,7 +1042,7 @@ chsc_determine_css_characteristics(void) scsc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); if (!scsc_area) { - CIO_MSG_EVENT(0, "Was not able to determine available" + CIO_MSG_EVENT(0, "Was not able to determine available " "CHSCs due to no memory.\n"); return -ENOMEM; } diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 46905345159..60590a12d52 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -23,11 +23,12 @@ #include <asm/reset.h> #include <asm/ipl.h> #include <asm/chpid.h> -#include "airq.h" +#include <asm/airq.h> #include "cio.h" #include "css.h" #include "chsc.h" #include "ioasm.h" +#include "io_sch.h" #include "blacklist.h" #include "cio_debug.h" #include "chp.h" @@ -56,39 +57,37 @@ __setup ("cio_msg=", cio_setup); /* * Function: cio_debug_init - * Initializes three debug logs (under /proc/s390dbf) for common I/O: - * - cio_msg logs the messages which are printk'ed when CONFIG_DEBUG_IO is on + * Initializes three debug logs for common I/O: + * - cio_msg logs generic cio messages * - cio_trace logs the calling of different functions - * - cio_crw logs the messages which are printk'ed when CONFIG_DEBUG_CRW is on - * debug levels depend on CONFIG_DEBUG_IO resp. CONFIG_DEBUG_CRW + * - cio_crw logs machine check related cio messages */ -static int __init -cio_debug_init (void) +static int __init cio_debug_init(void) { - cio_debug_msg_id = debug_register ("cio_msg", 16, 4, 16*sizeof (long)); + cio_debug_msg_id = debug_register("cio_msg", 16, 1, 16 * sizeof(long)); if (!cio_debug_msg_id) goto out_unregister; - debug_register_view (cio_debug_msg_id, &debug_sprintf_view); - debug_set_level (cio_debug_msg_id, 2); - cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 16); + debug_register_view(cio_debug_msg_id, &debug_sprintf_view); + debug_set_level(cio_debug_msg_id, 2); + cio_debug_trace_id = debug_register("cio_trace", 16, 1, 16); if (!cio_debug_trace_id) goto out_unregister; - debug_register_view (cio_debug_trace_id, &debug_hex_ascii_view); - debug_set_level (cio_debug_trace_id, 2); - cio_debug_crw_id = debug_register ("cio_crw", 4, 4, 16*sizeof (long)); + debug_register_view(cio_debug_trace_id, &debug_hex_ascii_view); + debug_set_level(cio_debug_trace_id, 2); + cio_debug_crw_id = debug_register("cio_crw", 16, 1, 16 * sizeof(long)); if (!cio_debug_crw_id) goto out_unregister; - debug_register_view (cio_debug_crw_id, &debug_sprintf_view); - debug_set_level (cio_debug_crw_id, 2); + debug_register_view(cio_debug_crw_id, &debug_sprintf_view); + debug_set_level(cio_debug_crw_id, 4); return 0; out_unregister: if (cio_debug_msg_id) - debug_unregister (cio_debug_msg_id); + debug_unregister(cio_debug_msg_id); if (cio_debug_trace_id) - debug_unregister (cio_debug_trace_id); + debug_unregister(cio_debug_trace_id); if (cio_debug_crw_id) - debug_unregister (cio_debug_crw_id); + debug_unregister(cio_debug_crw_id); printk(KERN_WARNING"cio: could not initialize debugging\n"); return -1; } @@ -147,7 +146,7 @@ cio_tpi(void) spin_lock(sch->lock); memcpy (&sch->schib.scsw, &irb->scsw, sizeof (struct scsw)); if (sch->driver && sch->driver->irq) - sch->driver->irq(&sch->dev); + sch->driver->irq(sch); spin_unlock(sch->lock); irq_exit (); _local_bh_enable(); @@ -184,33 +183,35 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */ { char dbf_txt[15]; int ccode; + struct orb *orb; - CIO_TRACE_EVENT (4, "stIO"); - CIO_TRACE_EVENT (4, sch->dev.bus_id); + CIO_TRACE_EVENT(4, "stIO"); + CIO_TRACE_EVENT(4, sch->dev.bus_id); + orb = &to_io_private(sch)->orb; /* sch is always under 2G. */ - sch->orb.intparm = (__u32)(unsigned long)sch; - sch->orb.fmt = 1; + orb->intparm = (u32)(addr_t)sch; + orb->fmt = 1; - sch->orb.pfch = sch->options.prefetch == 0; - sch->orb.spnd = sch->options.suspend; - sch->orb.ssic = sch->options.suspend && sch->options.inter; - sch->orb.lpm = (lpm != 0) ? lpm : sch->lpm; + orb->pfch = sch->options.prefetch == 0; + orb->spnd = sch->options.suspend; + orb->ssic = sch->options.suspend && sch->options.inter; + orb->lpm = (lpm != 0) ? lpm : sch->lpm; #ifdef CONFIG_64BIT /* * for 64 bit we always support 64 bit IDAWs with 4k page size only */ - sch->orb.c64 = 1; - sch->orb.i2k = 0; + orb->c64 = 1; + orb->i2k = 0; #endif - sch->orb.key = key >> 4; + orb->key = key >> 4; /* issue "Start Subchannel" */ - sch->orb.cpa = (__u32) __pa (cpa); - ccode = ssch (sch->schid, &sch->orb); + orb->cpa = (__u32) __pa(cpa); + ccode = ssch(sch->schid, orb); /* process condition code */ - sprintf (dbf_txt, "ccode:%d", ccode); - CIO_TRACE_EVENT (4, dbf_txt); + sprintf(dbf_txt, "ccode:%d", ccode); + CIO_TRACE_EVENT(4, dbf_txt); switch (ccode) { case 0: @@ -405,8 +406,8 @@ cio_modify (struct subchannel *sch) /* * Enable subchannel. */ -int -cio_enable_subchannel (struct subchannel *sch, unsigned int isc) +int cio_enable_subchannel(struct subchannel *sch, unsigned int isc, + u32 intparm) { char dbf_txt[15]; int ccode; @@ -425,7 +426,7 @@ cio_enable_subchannel (struct subchannel *sch, unsigned int isc) for (retry = 5, ret = 0; retry > 0; retry--) { sch->schib.pmcw.ena = 1; sch->schib.pmcw.isc = isc; - sch->schib.pmcw.intparm = (__u32)(unsigned long)sch; + sch->schib.pmcw.intparm = intparm; ret = cio_modify(sch); if (ret == -ENODEV) break; @@ -567,7 +568,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) */ if (sch->st != 0) { CIO_DEBUG(KERN_INFO, 0, - "cio: Subchannel 0.%x.%04x reports " + "Subchannel 0.%x.%04x reports " "non-I/O subchannel type %04X\n", sch->schid.ssid, sch->schid.sch_no, sch->st); /* We stop here for non-io subchannels. */ @@ -576,11 +577,11 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) } /* Initialization for io subchannels. */ - if (!sch->schib.pmcw.dnv) { - /* io subchannel but device number is invalid. */ + if (!css_sch_is_valid(&sch->schib)) { err = -ENODEV; goto out; } + /* Devno is valid. */ if (is_blacklisted (sch->schid.ssid, sch->schib.pmcw.dev)) { /* @@ -600,7 +601,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) sch->lpm = sch->schib.pmcw.pam & sch->opm; CIO_DEBUG(KERN_INFO, 0, - "cio: Detected device %04x on subchannel 0.%x.%04X" + "Detected device %04x on subchannel 0.%x.%04X" " - PIM = %02X, PAM = %02X, POM = %02X\n", sch->schib.pmcw.dev, sch->schid.ssid, sch->schid.sch_no, sch->schib.pmcw.pim, @@ -680,7 +681,7 @@ do_IRQ (struct pt_regs *regs) sizeof (irb->scsw)); /* Call interrupt handler if there is one. */ if (sch->driver && sch->driver->irq) - sch->driver->irq(&sch->dev); + sch->driver->irq(sch); } if (sch) spin_unlock(sch->lock); @@ -698,8 +699,14 @@ do_IRQ (struct pt_regs *regs) #ifdef CONFIG_CCW_CONSOLE static struct subchannel console_subchannel; +static struct io_subchannel_private console_priv; static int console_subchannel_in_use; +void *cio_get_console_priv(void) +{ + return &console_priv; +} + /* * busy wait for the next interrupt on the console */ @@ -738,9 +745,9 @@ cio_test_for_console(struct subchannel_id schid, void *data) { if (stsch_err(schid, &console_subchannel.schib) != 0) return -ENXIO; - if (console_subchannel.schib.pmcw.dnv && - console_subchannel.schib.pmcw.dev == - console_devno) { + if ((console_subchannel.schib.pmcw.st == SUBCHANNEL_TYPE_IO) && + console_subchannel.schib.pmcw.dnv && + (console_subchannel.schib.pmcw.dev == console_devno)) { console_irq = schid.sch_no; return 1; /* found */ } @@ -758,6 +765,7 @@ cio_get_console_sch_no(void) /* VM provided us with the irq number of the console. */ schid.sch_no = console_irq; if (stsch(schid, &console_subchannel.schib) != 0 || + (console_subchannel.schib.pmcw.st != SUBCHANNEL_TYPE_IO) || !console_subchannel.schib.pmcw.dnv) return -1; console_devno = console_subchannel.schib.pmcw.dev; @@ -804,7 +812,7 @@ cio_probe_console(void) ctl_set_bit(6, 24); console_subchannel.schib.pmcw.isc = 7; console_subchannel.schib.pmcw.intparm = - (__u32)(unsigned long)&console_subchannel; + (u32)(addr_t)&console_subchannel; ret = cio_modify(&console_subchannel); if (ret) { console_subchannel_in_use = 0; @@ -1022,7 +1030,7 @@ static int __reipl_subchannel_match(struct subchannel_id schid, void *data) if (stsch_reset(schid, &schib)) return -ENXIO; - if (schib.pmcw.dnv && + if ((schib.pmcw.st == SUBCHANNEL_TYPE_IO) && schib.pmcw.dnv && (schib.pmcw.dev == match_id->devid.devno) && (schid.ssid == match_id->devid.ssid)) { match_id->schid = schid; @@ -1068,6 +1076,8 @@ int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo) return -ENODEV; if (stsch(schid, &schib)) return -ENODEV; + if (schib.pmcw.st != SUBCHANNEL_TYPE_IO) + return -ENODEV; if (!schib.pmcw.dnv) return -ENODEV; iplinfo->devno = schib.pmcw.dev; diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index 7446c39951a..52afa4c784d 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -11,32 +11,32 @@ * path management control word */ struct pmcw { - __u32 intparm; /* interruption parameter */ - __u32 qf : 1; /* qdio facility */ - __u32 res0 : 1; /* reserved zeros */ - __u32 isc : 3; /* interruption sublass */ - __u32 res5 : 3; /* reserved zeros */ - __u32 ena : 1; /* enabled */ - __u32 lm : 2; /* limit mode */ - __u32 mme : 2; /* measurement-mode enable */ - __u32 mp : 1; /* multipath mode */ - __u32 tf : 1; /* timing facility */ - __u32 dnv : 1; /* device number valid */ - __u32 dev : 16; /* device number */ - __u8 lpm; /* logical path mask */ - __u8 pnom; /* path not operational mask */ - __u8 lpum; /* last path used mask */ - __u8 pim; /* path installed mask */ - __u16 mbi; /* measurement-block index */ - __u8 pom; /* path operational mask */ - __u8 pam; /* path available mask */ - __u8 chpid[8]; /* CHPID 0-7 (if available) */ - __u32 unused1 : 8; /* reserved zeros */ - __u32 st : 3; /* subchannel type */ - __u32 unused2 : 18; /* reserved zeros */ - __u32 mbfc : 1; /* measurement block format control */ - __u32 xmwme : 1; /* extended measurement word mode enable */ - __u32 csense : 1; /* concurrent sense; can be enabled ...*/ + u32 intparm; /* interruption parameter */ + u32 qf : 1; /* qdio facility */ + u32 res0 : 1; /* reserved zeros */ + u32 isc : 3; /* interruption sublass */ + u32 res5 : 3; /* reserved zeros */ + u32 ena : 1; /* enabled */ + u32 lm : 2; /* limit mode */ + u32 mme : 2; /* measurement-mode enable */ + u32 mp : 1; /* multipath mode */ + u32 tf : 1; /* timing facility */ + u32 dnv : 1; /* device number valid */ + u32 dev : 16; /* device number */ + u8 lpm; /* logical path mask */ + u8 pnom; /* path not operational mask */ + u8 lpum; /* last path used mask */ + u8 pim; /* path installed mask */ + u16 mbi; /* measurement-block index */ + u8 pom; /* path operational mask */ + u8 pam; /* path available mask */ + u8 chpid[8]; /* CHPID 0-7 (if available) */ + u32 unused1 : 8; /* reserved zeros */ + u32 st : 3; /* subchannel type */ + u32 unused2 : 18; /* reserved zeros */ + u32 mbfc : 1; /* measurement block format control */ + u32 xmwme : 1; /* extended measurement word mode enable */ + u32 csense : 1; /* concurrent sense; can be enabled ...*/ /* ... per MSCH, however, if facility */ /* ... is not installed, this results */ /* ... in an operand exception. */ @@ -52,31 +52,6 @@ struct schib { __u8 mda[4]; /* model dependent area */ } __attribute__ ((packed,aligned(4))); -/* - * operation request block - */ -struct orb { - __u32 intparm; /* interruption parameter */ - __u32 key : 4; /* flags, like key, suspend control, etc. */ - __u32 spnd : 1; /* suspend control */ - __u32 res1 : 1; /* reserved */ - __u32 mod : 1; /* modification control */ - __u32 sync : 1; /* synchronize control */ - __u32 fmt : 1; /* format control */ - __u32 pfch : 1; /* prefetch control */ - __u32 isic : 1; /* initial-status-interruption control */ - __u32 alcc : 1; /* address-limit-checking control */ - __u32 ssic : 1; /* suppress-suspended-interr. control */ - __u32 res2 : 1; /* reserved */ - __u32 c64 : 1; /* IDAW/QDIO 64 bit control */ - __u32 i2k : 1; /* IDAW 2/4kB block size control */ - __u32 lpm : 8; /* logical path mask */ - __u32 ils : 1; /* incorrect length */ - __u32 zero : 6; /* reserved zeros */ - __u32 orbx : 1; /* ORB extension control */ - __u32 cpa; /* channel program address */ -} __attribute__ ((packed,aligned(4))); - /* subchannel data structure used by I/O subroutines */ struct subchannel { struct subchannel_id schid; @@ -85,7 +60,7 @@ struct subchannel { enum { SUBCHANNEL_TYPE_IO = 0, SUBCHANNEL_TYPE_CHSC = 1, - SUBCHANNEL_TYPE_MESSAGE = 2, + SUBCHANNEL_TYPE_MSG = 2, SUBCHANNEL_TYPE_ADM = 3, } st; /* subchannel type */ @@ -99,11 +74,10 @@ struct subchannel { __u8 lpm; /* logical path mask */ __u8 opm; /* operational path mask */ struct schib schib; /* subchannel information block */ - struct orb orb; /* operation request block */ - struct ccw1 sense_ccw; /* static ccw for sense command */ struct chsc_ssd_info ssd_info; /* subchannel description */ struct device dev; /* entry in device tree */ struct css_driver *driver; + void *private; /* private per subchannel type data */ } __attribute__ ((aligned(8))); #define IO_INTERRUPT_TYPE 0 /* I/O interrupt type */ @@ -111,7 +85,7 @@ struct subchannel { #define to_subchannel(n) container_of(n, struct subchannel, dev) extern int cio_validate_subchannel (struct subchannel *, struct subchannel_id); -extern int cio_enable_subchannel (struct subchannel *, unsigned int); +extern int cio_enable_subchannel(struct subchannel *, unsigned int, u32); extern int cio_disable_subchannel (struct subchannel *); extern int cio_cancel (struct subchannel *); extern int cio_clear (struct subchannel *); @@ -125,6 +99,7 @@ extern int cio_get_options (struct subchannel *); extern int cio_modify (struct subchannel *); int cio_create_sch_lock(struct subchannel *); +void do_adapter_IO(void); /* Use with care. */ #ifdef CONFIG_CCW_CONSOLE @@ -133,10 +108,12 @@ extern void cio_release_console(void); extern int cio_is_console(struct subchannel_id); extern struct subchannel *cio_get_console_subchannel(void); extern spinlock_t * cio_get_console_lock(void); +extern void *cio_get_console_priv(void); #else #define cio_is_console(schid) 0 #define cio_get_console_subchannel() NULL -#define cio_get_console_lock() NULL; +#define cio_get_console_lock() NULL +#define cio_get_console_priv() NULL #endif extern int cio_show_msg; diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h index c9bf8989930..d7429ef6c66 100644 --- a/drivers/s390/cio/cio_debug.h +++ b/drivers/s390/cio/cio_debug.h @@ -8,20 +8,19 @@ extern debug_info_t *cio_debug_msg_id; extern debug_info_t *cio_debug_trace_id; extern debug_info_t *cio_debug_crw_id; -#define CIO_TRACE_EVENT(imp, txt) do { \ +#define CIO_TRACE_EVENT(imp, txt) do { \ debug_text_event(cio_debug_trace_id, imp, txt); \ } while (0) -#define CIO_MSG_EVENT(imp, args...) do { \ - debug_sprintf_event(cio_debug_msg_id, imp , ##args); \ +#define CIO_MSG_EVENT(imp, args...) do { \ + debug_sprintf_event(cio_debug_msg_id, imp , ##args); \ } while (0) -#define CIO_CRW_EVENT(imp, args...) do { \ - debug_sprintf_event(cio_debug_crw_id, imp , ##args); \ +#define CIO_CRW_EVENT(imp, args...) do { \ + debug_sprintf_event(cio_debug_crw_id, imp , ##args); \ } while (0) -static inline void -CIO_HEX_EVENT(int level, void *data, int length) +static inline void CIO_HEX_EVENT(int level, void *data, int length) { if (unlikely(!cio_debug_trace_id)) return; @@ -32,9 +31,10 @@ CIO_HEX_EVENT(int level, void *data, int length) } } -#define CIO_DEBUG(printk_level,event_level,msg...) ({ \ - if (cio_show_msg) printk(printk_level msg); \ - CIO_MSG_EVENT (event_level, msg); \ -}) +#define CIO_DEBUG(printk_level, event_level, msg...) do { \ + if (cio_show_msg) \ + printk(printk_level "cio: " msg); \ + CIO_MSG_EVENT(event_level, msg); \ + } while (0) #endif diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index c3df2cd009a..3b45bbe6cce 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -51,6 +51,62 @@ for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *data) return ret; } +struct cb_data { + void *data; + struct idset *set; + int (*fn_known_sch)(struct subchannel *, void *); + int (*fn_unknown_sch)(struct subchannel_id, void *); +}; + +static int call_fn_known_sch(struct device *dev, void *data) +{ + struct subchannel *sch = to_subchannel(dev); + struct cb_data *cb = data; + int rc = 0; + + idset_sch_del(cb->set, sch->schid); + if (cb->fn_known_sch) + rc = cb->fn_known_sch(sch, cb->data); + return rc; +} + +static int call_fn_unknown_sch(struct subchannel_id schid, void *data) +{ + struct cb_data *cb = data; + int rc = 0; + + if (idset_sch_contains(cb->set, schid)) + rc = cb->fn_unknown_sch(schid, cb->data); + return rc; +} + +int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), + int (*fn_unknown)(struct subchannel_id, + void *), void *data) +{ + struct cb_data cb; + int rc; + + cb.set = idset_sch_new(); + if (!cb.set) + return -ENOMEM; + idset_fill(cb.set); + cb.data = data; + cb.fn_known_sch = fn_known; + cb.fn_unknown_sch = fn_unknown; + /* Process registered subchannels. */ + rc = bus_for_each_dev(&css_bus_type, NULL, &cb, call_fn_known_sch); + if (rc) + goto out; + /* Process unregistered subchannels. */ + if (fn_unknown) + rc = for_each_subchannel(call_fn_unknown_sch, &cb); +out: + idset_free(cb.set); + + return rc; +} + static struct subchannel * css_alloc_subchannel(struct subchannel_id schid) { @@ -77,7 +133,7 @@ css_alloc_subchannel(struct subchannel_id schid) * This is fine even on 64bit since the subchannel is always located * under 2G. */ - sch->schib.pmcw.intparm = (__u32)(unsigned long)sch; + sch->schib.pmcw.intparm = (u32)(addr_t)sch; ret = cio_modify(sch); if (ret) { kfree(sch->lock); @@ -237,11 +293,25 @@ get_subchannel_by_schid(struct subchannel_id schid) return dev ? to_subchannel(dev) : NULL; } +/** + * css_sch_is_valid() - check if a subchannel is valid + * @schib: subchannel information block for the subchannel + */ +int css_sch_is_valid(struct schib *schib) +{ + if ((schib->pmcw.st == SUBCHANNEL_TYPE_IO) && !schib->pmcw.dnv) + return 0; + return 1; +} +EXPORT_SYMBOL_GPL(css_sch_is_valid); + static int css_get_subchannel_status(struct subchannel *sch) { struct schib schib; - if (stsch(sch->schid, &schib) || !schib.pmcw.dnv) + if (stsch(sch->schid, &schib)) + return CIO_GONE; + if (!css_sch_is_valid(&schib)) return CIO_GONE; if (sch->schib.pmcw.dnv && (schib.pmcw.dev != sch->schib.pmcw.dev)) return CIO_REVALIDATE; @@ -293,7 +363,7 @@ static int css_evaluate_known_subchannel(struct subchannel *sch, int slow) action = UNREGISTER; if (sch->driver && sch->driver->notify) { spin_unlock_irqrestore(sch->lock, flags); - ret = sch->driver->notify(&sch->dev, event); + ret = sch->driver->notify(sch, event); spin_lock_irqsave(sch->lock, flags); if (ret) action = NONE; @@ -349,7 +419,7 @@ static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow) /* Will be done on the slow path. */ return -EAGAIN; } - if (stsch_err(schid, &schib) || !schib.pmcw.dnv) { + if (stsch_err(schid, &schib) || !css_sch_is_valid(&schib)) { /* Unusable - ignore. */ return 0; } @@ -388,20 +458,56 @@ static int __init slow_subchannel_init(void) return 0; } -static void css_slow_path_func(struct work_struct *unused) +static int slow_eval_known_fn(struct subchannel *sch, void *data) { - struct subchannel_id schid; + int eval; + int rc; - CIO_TRACE_EVENT(4, "slowpath"); spin_lock_irq(&slow_subchannel_lock); - init_subchannel_id(&schid); - while (idset_sch_get_first(slow_subchannel_set, &schid)) { - idset_sch_del(slow_subchannel_set, schid); - spin_unlock_irq(&slow_subchannel_lock); - css_evaluate_subchannel(schid, 1); - spin_lock_irq(&slow_subchannel_lock); + eval = idset_sch_contains(slow_subchannel_set, sch->schid); + idset_sch_del(slow_subchannel_set, sch->schid); + spin_unlock_irq(&slow_subchannel_lock); + if (eval) { + rc = css_evaluate_known_subchannel(sch, 1); + if (rc == -EAGAIN) + css_schedule_eval(sch->schid); } + return 0; +} + +static int slow_eval_unknown_fn(struct subchannel_id schid, void *data) +{ + int eval; + int rc = 0; + + spin_lock_irq(&slow_subchannel_lock); + eval = idset_sch_contains(slow_subchannel_set, schid); + idset_sch_del(slow_subchannel_set, schid); spin_unlock_irq(&slow_subchannel_lock); + if (eval) { + rc = css_evaluate_new_subchannel(schid, 1); + switch (rc) { + case -EAGAIN: + css_schedule_eval(schid); + rc = 0; + break; + case -ENXIO: + case -ENOMEM: + case -EIO: + /* These should abort looping */ + break; + default: + rc = 0; + } + } + return rc; +} + +static void css_slow_path_func(struct work_struct *unused) +{ + CIO_TRACE_EVENT(4, "slowpath"); + for_each_subchannel_staged(slow_eval_known_fn, slow_eval_unknown_fn, + NULL); } static DECLARE_WORK(slow_path_work, css_slow_path_func); @@ -430,7 +536,6 @@ void css_schedule_eval_all(void) /* Reprobe subchannel if unregistered. */ static int reprobe_subchannel(struct subchannel_id schid, void *data) { - struct subchannel *sch; int ret; CIO_MSG_EVENT(6, "cio: reprobe 0.%x.%04x\n", @@ -438,13 +543,6 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data) if (need_reprobe) return -EAGAIN; - sch = get_subchannel_by_schid(schid); - if (sch) { - /* Already known. */ - put_device(&sch->dev); - return 0; - } - ret = css_probe_device(schid); switch (ret) { case 0: @@ -472,7 +570,7 @@ static void reprobe_all(struct work_struct *unused) /* Make sure initial subchannel scan is done. */ wait_event(ccw_device_init_wq, atomic_read(&ccw_device_init_count) == 0); - ret = for_each_subchannel(reprobe_subchannel, NULL); + ret = for_each_subchannel_staged(NULL, reprobe_subchannel, NULL); CIO_MSG_EVENT(2, "reprobe done (rc=%d, need_reprobe=%d)\n", ret, need_reprobe); @@ -787,8 +885,8 @@ int sch_is_pseudo_sch(struct subchannel *sch) static int css_bus_match (struct device *dev, struct device_driver *drv) { - struct subchannel *sch = container_of (dev, struct subchannel, dev); - struct css_driver *driver = container_of (drv, struct css_driver, drv); + struct subchannel *sch = to_subchannel(dev); + struct css_driver *driver = to_cssdriver(drv); if (sch->st == driver->subchannel_type) return 1; @@ -796,32 +894,36 @@ css_bus_match (struct device *dev, struct device_driver *drv) return 0; } -static int -css_probe (struct device *dev) +static int css_probe(struct device *dev) { struct subchannel *sch; + int ret; sch = to_subchannel(dev); - sch->driver = container_of (dev->driver, struct css_driver, drv); - return (sch->driver->probe ? sch->driver->probe(sch) : 0); + sch->driver = to_cssdriver(dev->driver); + ret = sch->driver->probe ? sch->driver->probe(sch) : 0; + if (ret) + sch->driver = NULL; + return ret; } -static int -css_remove (struct device *dev) +static int css_remove(struct device *dev) { struct subchannel *sch; + int ret; sch = to_subchannel(dev); - return (sch->driver->remove ? sch->driver->remove(sch) : 0); + ret = sch->driver->remove ? sch->driver->remove(sch) : 0; + sch->driver = NULL; + return ret; } -static void -css_shutdown (struct device *dev) +static void css_shutdown(struct device *dev) { struct subchannel *sch; sch = to_subchannel(dev); - if (sch->driver->shutdown) + if (sch->driver && sch->driver->shutdown) sch->driver->shutdown(sch); } @@ -833,6 +935,34 @@ struct bus_type css_bus_type = { .shutdown = css_shutdown, }; +/** + * css_driver_register - register a css driver + * @cdrv: css driver to register + * + * This is mainly a wrapper around driver_register that sets name + * and bus_type in the embedded struct device_driver correctly. + */ +int css_driver_register(struct css_driver *cdrv) +{ + cdrv->drv.name = cdrv->name; + cdrv->drv.bus = &css_bus_type; + cdrv->drv.owner = cdrv->owner; + return driver_register(&cdrv->drv); +} +EXPORT_SYMBOL_GPL(css_driver_register); + +/** + * css_driver_unregister - unregister a css driver + * @cdrv: css driver to unregister + * + * This is a wrapper around driver_unregister. + */ +void css_driver_unregister(struct css_driver *cdrv) +{ + driver_unregister(&cdrv->drv); +} +EXPORT_SYMBOL_GPL(css_driver_unregister); + subsys_initcall(init_channel_subsystem); MODULE_LICENSE("GPL"); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 81215ef3243..b7055452355 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -58,64 +58,6 @@ struct pgid { __u32 tod_high; /* high word TOD clock */ } __attribute__ ((packed)); -#define MAX_CIWS 8 - -/* - * sense-id response buffer layout - */ -struct senseid { - /* common part */ - __u8 reserved; /* always 0x'FF' */ - __u16 cu_type; /* control unit type */ - __u8 cu_model; /* control unit model */ - __u16 dev_type; /* device type */ - __u8 dev_model; /* device model */ - __u8 unused; /* padding byte */ - /* extended part */ - struct ciw ciw[MAX_CIWS]; /* variable # of CIWs */ -} __attribute__ ((packed,aligned(4))); - -struct ccw_device_private { - struct ccw_device *cdev; - struct subchannel *sch; - int state; /* device state */ - atomic_t onoff; - unsigned long registered; - struct ccw_dev_id dev_id; /* device id */ - struct subchannel_id schid; /* subchannel number */ - __u8 imask; /* lpm mask for SNID/SID/SPGID */ - int iretry; /* retry counter SNID/SID/SPGID */ - struct { - unsigned int fast:1; /* post with "channel end" */ - unsigned int repall:1; /* report every interrupt status */ - unsigned int pgroup:1; /* do path grouping */ - unsigned int force:1; /* allow forced online */ - } __attribute__ ((packed)) options; - struct { - unsigned int pgid_single:1; /* use single path for Set PGID */ - unsigned int esid:1; /* Ext. SenseID supported by HW */ - unsigned int dosense:1; /* delayed SENSE required */ - unsigned int doverify:1; /* delayed path verification */ - unsigned int donotify:1; /* call notify function */ - unsigned int recog_done:1; /* dev. recog. complete */ - unsigned int fake_irb:1; /* deliver faked irb */ - unsigned int intretry:1; /* retry internal operation */ - } __attribute__((packed)) flags; - unsigned long intparm; /* user interruption parameter */ - struct qdio_irq *qdio_data; - struct irb irb; /* device status */ - struct senseid senseid; /* SenseID info */ - struct pgid pgid[8]; /* path group IDs per chpid*/ - struct ccw1 iccws[2]; /* ccws for SNID/SID/SPGID commands */ - struct work_struct kick_work; - wait_queue_head_t wait_q; - struct timer_list timer; - void *cmb; /* measurement information */ - struct list_head cmb_list; /* list of measured devices */ - u64 cmb_start_time; /* clock value of cmb reset */ - void *cmb_wait; /* deferred cmb enable/disable */ -}; - /* * A css driver handles all subchannels of one type. * Currently, we only care about I/O subchannels (type 0), these @@ -123,25 +65,35 @@ struct ccw_device_private { */ struct subchannel; struct css_driver { + struct module *owner; unsigned int subchannel_type; struct device_driver drv; - void (*irq)(struct device *); - int (*notify)(struct device *, int); - void (*verify)(struct device *); - void (*termination)(struct device *); + void (*irq)(struct subchannel *); + int (*notify)(struct subchannel *, int); + void (*verify)(struct subchannel *); + void (*termination)(struct subchannel *); int (*probe)(struct subchannel *); int (*remove)(struct subchannel *); void (*shutdown)(struct subchannel *); + const char *name; }; +#define to_cssdriver(n) container_of(n, struct css_driver, drv) + /* * all css_drivers have the css_bus_type */ extern struct bus_type css_bus_type; +extern int css_driver_register(struct css_driver *); +extern void css_driver_unregister(struct css_driver *); + extern void css_sch_device_unregister(struct subchannel *); extern struct subchannel * get_subchannel_by_schid(struct subchannel_id); extern int css_init_done; +int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), + int (*fn_unknown)(struct subchannel_id, + void *), void *data); extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); extern void css_process_crw(int, int); extern void css_reiterate_subchannels(void); @@ -188,6 +140,8 @@ void css_schedule_eval(struct subchannel_id schid); void css_schedule_eval_all(void); int sch_is_pseudo_sch(struct subchannel *); +struct schib; +int css_sch_is_valid(struct schib *); extern struct workqueue_struct *slow_path_wq; diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 74f6b539974..d35dc3f25d0 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -17,6 +17,7 @@ #include <linux/list.h> #include <linux/device.h> #include <linux/workqueue.h> +#include <linux/timer.h> #include <asm/ccwdev.h> #include <asm/cio.h> @@ -28,6 +29,12 @@ #include "css.h" #include "device.h" #include "ioasm.h" +#include "io_sch.h" + +static struct timer_list recovery_timer; +static spinlock_t recovery_lock; +static int recovery_phase; +static const unsigned long recovery_delay[] = { 3, 30, 300 }; /******************* bus type handling ***********************/ @@ -115,19 +122,18 @@ static int ccw_uevent(struct device *dev, struct kobj_uevent_env *env) struct bus_type ccw_bus_type; -static int io_subchannel_probe (struct subchannel *); -static int io_subchannel_remove (struct subchannel *); -static int io_subchannel_notify(struct device *, int); -static void io_subchannel_verify(struct device *); -static void io_subchannel_ioterm(struct device *); +static void io_subchannel_irq(struct subchannel *); +static int io_subchannel_probe(struct subchannel *); +static int io_subchannel_remove(struct subchannel *); +static int io_subchannel_notify(struct subchannel *, int); +static void io_subchannel_verify(struct subchannel *); +static void io_subchannel_ioterm(struct subchannel *); static void io_subchannel_shutdown(struct subchannel *); static struct css_driver io_subchannel_driver = { + .owner = THIS_MODULE, .subchannel_type = SUBCHANNEL_TYPE_IO, - .drv = { - .name = "io_subchannel", - .bus = &css_bus_type, - }, + .name = "io_subchannel", .irq = io_subchannel_irq, .notify = io_subchannel_notify, .verify = io_subchannel_verify, @@ -142,6 +148,8 @@ struct workqueue_struct *ccw_device_notify_work; wait_queue_head_t ccw_device_init_wq; atomic_t ccw_device_init_count; +static void recovery_func(unsigned long data); + static int __init init_ccw_bus_type (void) { @@ -149,6 +157,7 @@ init_ccw_bus_type (void) init_waitqueue_head(&ccw_device_init_wq); atomic_set(&ccw_device_init_count, 0); + setup_timer(&recovery_timer, recovery_func, 0); ccw_device_work = create_singlethread_workqueue("cio"); if (!ccw_device_work) @@ -166,7 +175,8 @@ init_ccw_bus_type (void) if ((ret = bus_register (&ccw_bus_type))) goto out_err; - if ((ret = driver_register(&io_subchannel_driver.drv))) + ret = css_driver_register(&io_subchannel_driver); + if (ret) goto out_err; wait_event(ccw_device_init_wq, @@ -186,7 +196,7 @@ out_err: static void __exit cleanup_ccw_bus_type (void) { - driver_unregister(&io_subchannel_driver.drv); + css_driver_unregister(&io_subchannel_driver); bus_unregister(&ccw_bus_type); destroy_workqueue(ccw_device_notify_work); destroy_workqueue(ccw_device_work); @@ -773,7 +783,7 @@ static void sch_attach_device(struct subchannel *sch, { css_update_ssd_info(sch); spin_lock_irq(sch->lock); - sch->dev.driver_data = cdev; + sch_set_cdev(sch, cdev); cdev->private->schid = sch->schid; cdev->ccwlock = sch->lock; device_trigger_reprobe(sch); @@ -795,7 +805,7 @@ static void sch_attach_disconnected_device(struct subchannel *sch, put_device(&other_sch->dev); return; } - other_sch->dev.driver_data = NULL; + sch_set_cdev(other_sch, NULL); /* No need to keep a subchannel without ccw device around. */ css_sch_device_unregister(other_sch); put_device(&other_sch->dev); @@ -831,12 +841,12 @@ static void sch_create_and_recog_new_device(struct subchannel *sch) return; } spin_lock_irq(sch->lock); - sch->dev.driver_data = cdev; + sch_set_cdev(sch, cdev); spin_unlock_irq(sch->lock); /* Start recognition for the new ccw device. */ if (io_subchannel_recog(cdev, sch)) { spin_lock_irq(sch->lock); - sch->dev.driver_data = NULL; + sch_set_cdev(sch, NULL); spin_unlock_irq(sch->lock); if (cdev->dev.release) cdev->dev.release(&cdev->dev); @@ -940,7 +950,7 @@ io_subchannel_register(struct work_struct *work) cdev->private->dev_id.devno, ret); put_device(&cdev->dev); spin_lock_irqsave(sch->lock, flags); - sch->dev.driver_data = NULL; + sch_set_cdev(sch, NULL); spin_unlock_irqrestore(sch->lock, flags); kfree (cdev->private); kfree (cdev); @@ -1022,7 +1032,7 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch) int rc; struct ccw_device_private *priv; - sch->dev.driver_data = cdev; + sch_set_cdev(sch, cdev); sch->driver = &io_subchannel_driver; cdev->ccwlock = sch->lock; @@ -1082,7 +1092,7 @@ static void ccw_device_move_to_sch(struct work_struct *work) } if (former_parent) { spin_lock_irq(former_parent->lock); - former_parent->dev.driver_data = NULL; + sch_set_cdev(former_parent, NULL); spin_unlock_irq(former_parent->lock); css_sch_device_unregister(former_parent); /* Reset intparm to zeroes. */ @@ -1096,6 +1106,18 @@ out: put_device(&cdev->dev); } +static void io_subchannel_irq(struct subchannel *sch) +{ + struct ccw_device *cdev; + + cdev = sch_get_cdev(sch); + + CIO_TRACE_EVENT(3, "IRQ"); + CIO_TRACE_EVENT(3, sch->dev.bus_id); + if (cdev) + dev_fsm_event(cdev, DEV_EVENT_INTERRUPT); +} + static int io_subchannel_probe (struct subchannel *sch) { @@ -1104,13 +1126,13 @@ io_subchannel_probe (struct subchannel *sch) unsigned long flags; struct ccw_dev_id dev_id; - if (sch->dev.driver_data) { + cdev = sch_get_cdev(sch); + if (cdev) { /* * This subchannel already has an associated ccw_device. * Register it and exit. This happens for all early * device, e.g. the console. */ - cdev = sch->dev.driver_data; cdev->dev.groups = ccwdev_attr_groups; device_initialize(&cdev->dev); ccw_device_register(cdev); @@ -1132,6 +1154,11 @@ io_subchannel_probe (struct subchannel *sch) */ dev_id.devno = sch->schib.pmcw.dev; dev_id.ssid = sch->schid.ssid; + /* Allocate I/O subchannel private data. */ + sch->private = kzalloc(sizeof(struct io_subchannel_private), + GFP_KERNEL | GFP_DMA); + if (!sch->private) + return -ENOMEM; cdev = get_disc_ccwdev_by_dev_id(&dev_id, NULL); if (!cdev) cdev = get_orphaned_ccwdev_by_dev_id(to_css(sch->dev.parent), @@ -1149,16 +1176,18 @@ io_subchannel_probe (struct subchannel *sch) return 0; } cdev = io_subchannel_create_ccwdev(sch); - if (IS_ERR(cdev)) + if (IS_ERR(cdev)) { + kfree(sch->private); return PTR_ERR(cdev); - + } rc = io_subchannel_recog(cdev, sch); if (rc) { spin_lock_irqsave(sch->lock, flags); - sch->dev.driver_data = NULL; + sch_set_cdev(sch, NULL); spin_unlock_irqrestore(sch->lock, flags); if (cdev->dev.release) cdev->dev.release(&cdev->dev); + kfree(sch->private); } return rc; @@ -1170,25 +1199,25 @@ io_subchannel_remove (struct subchannel *sch) struct ccw_device *cdev; unsigned long flags; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return 0; - cdev = sch->dev.driver_data; /* Set ccw device to not operational and drop reference. */ spin_lock_irqsave(cdev->ccwlock, flags); - sch->dev.driver_data = NULL; + sch_set_cdev(sch, NULL); cdev->private->state = DEV_STATE_NOT_OPER; spin_unlock_irqrestore(cdev->ccwlock, flags); ccw_device_unregister(cdev); put_device(&cdev->dev); + kfree(sch->private); return 0; } -static int -io_subchannel_notify(struct device *dev, int event) +static int io_subchannel_notify(struct subchannel *sch, int event) { struct ccw_device *cdev; - cdev = dev->driver_data; + cdev = sch_get_cdev(sch); if (!cdev) return 0; if (!cdev->drv) @@ -1198,22 +1227,20 @@ io_subchannel_notify(struct device *dev, int event) return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0; } -static void -io_subchannel_verify(struct device *dev) +static void io_subchannel_verify(struct subchannel *sch) { struct ccw_device *cdev; - cdev = dev->driver_data; + cdev = sch_get_cdev(sch); if (cdev) dev_fsm_event(cdev, DEV_EVENT_VERIFY); } -static void -io_subchannel_ioterm(struct device *dev) +static void io_subchannel_ioterm(struct subchannel *sch) { struct ccw_device *cdev; - cdev = dev->driver_data; + cdev = sch_get_cdev(sch); if (!cdev) return; /* Internal I/O will be retried by the interrupt handler. */ @@ -1231,7 +1258,7 @@ io_subchannel_shutdown(struct subchannel *sch) struct ccw_device *cdev; int ret; - cdev = sch->dev.driver_data; + cdev = sch_get_cdev(sch); if (cio_is_console(sch->schid)) return; @@ -1271,6 +1298,9 @@ ccw_device_console_enable (struct ccw_device *cdev, struct subchannel *sch) { int rc; + /* Attach subchannel private data. */ + sch->private = cio_get_console_priv(); + memset(sch->private, 0, sizeof(struct io_subchannel_private)); /* Initialize the ccw_device structure. */ cdev->dev.parent= &sch->dev; rc = io_subchannel_recog(cdev, sch); @@ -1456,6 +1486,7 @@ int ccw_driver_register(struct ccw_driver *cdriver) drv->bus = &ccw_bus_type; drv->name = cdriver->name; + drv->owner = cdriver->owner; return driver_register(drv); } @@ -1481,6 +1512,60 @@ ccw_device_get_subchannel_id(struct ccw_device *cdev) return sch->schid; } +static int recovery_check(struct device *dev, void *data) +{ + struct ccw_device *cdev = to_ccwdev(dev); + int *redo = data; + + spin_lock_irq(cdev->ccwlock); + switch (cdev->private->state) { + case DEV_STATE_DISCONNECTED: + CIO_MSG_EVENT(3, "recovery: trigger 0.%x.%04x\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + *redo = 1; + break; + case DEV_STATE_DISCONNECTED_SENSE_ID: + *redo = 1; + break; + } + spin_unlock_irq(cdev->ccwlock); + + return 0; +} + +static void recovery_func(unsigned long data) +{ + int redo = 0; + + bus_for_each_dev(&ccw_bus_type, NULL, &redo, recovery_check); + if (redo) { + spin_lock_irq(&recovery_lock); + if (!timer_pending(&recovery_timer)) { + if (recovery_phase < ARRAY_SIZE(recovery_delay) - 1) + recovery_phase++; + mod_timer(&recovery_timer, jiffies + + recovery_delay[recovery_phase] * HZ); + } + spin_unlock_irq(&recovery_lock); + } else + CIO_MSG_EVENT(2, "recovery: end\n"); +} + +void ccw_device_schedule_recovery(void) +{ + unsigned long flags; + + CIO_MSG_EVENT(2, "recovery: schedule\n"); + spin_lock_irqsave(&recovery_lock, flags); + if (!timer_pending(&recovery_timer) || (recovery_phase != 0)) { + recovery_phase = 0; + mod_timer(&recovery_timer, jiffies + recovery_delay[0] * HZ); + } + spin_unlock_irqrestore(&recovery_lock, flags); +} + MODULE_LICENSE("GPL"); EXPORT_SYMBOL(ccw_device_set_online); EXPORT_SYMBOL(ccw_device_set_offline); diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 0d408960043..d40a2ffaa00 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -5,6 +5,8 @@ #include <asm/atomic.h> #include <linux/wait.h> +#include "io_sch.h" + /* * states of the device statemachine */ @@ -74,7 +76,6 @@ extern struct workqueue_struct *ccw_device_notify_work; extern wait_queue_head_t ccw_device_init_wq; extern atomic_t ccw_device_init_count; -void io_subchannel_irq (struct device *pdev); void io_subchannel_recog_done(struct ccw_device *cdev); int ccw_device_cancel_halt_clear(struct ccw_device *); @@ -87,6 +88,8 @@ int ccw_device_recognition(struct ccw_device *); int ccw_device_online(struct ccw_device *); int ccw_device_offline(struct ccw_device *); +void ccw_device_schedule_recovery(void); + /* Function prototypes for device status and basic sense stuff. */ void ccw_device_accumulate_irb(struct ccw_device *, struct irb *); void ccw_device_accumulate_basic_sense(struct ccw_device *, struct irb *); diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index bfad421cda6..4b92c84fb43 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -25,14 +25,16 @@ #include "ioasm.h" #include "chp.h" +static int timeout_log_enabled; + int device_is_online(struct subchannel *sch) { struct ccw_device *cdev; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return 0; - cdev = sch->dev.driver_data; return (cdev->private->state == DEV_STATE_ONLINE); } @@ -41,9 +43,9 @@ device_is_disconnected(struct subchannel *sch) { struct ccw_device *cdev; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return 0; - cdev = sch->dev.driver_data; return (cdev->private->state == DEV_STATE_DISCONNECTED || cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID); } @@ -53,19 +55,21 @@ device_set_disconnected(struct subchannel *sch) { struct ccw_device *cdev; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return; - cdev = sch->dev.driver_data; ccw_device_set_timeout(cdev, 0); cdev->private->flags.fake_irb = 0; cdev->private->state = DEV_STATE_DISCONNECTED; + if (cdev->online) + ccw_device_schedule_recovery(); } void device_set_intretry(struct subchannel *sch) { struct ccw_device *cdev; - cdev = sch->dev.driver_data; + cdev = sch_get_cdev(sch); if (!cdev) return; cdev->private->flags.intretry = 1; @@ -75,13 +79,62 @@ int device_trigger_verify(struct subchannel *sch) { struct ccw_device *cdev; - cdev = sch->dev.driver_data; + cdev = sch_get_cdev(sch); if (!cdev || !cdev->online) return -EINVAL; dev_fsm_event(cdev, DEV_EVENT_VERIFY); return 0; } +static int __init ccw_timeout_log_setup(char *unused) +{ + timeout_log_enabled = 1; + return 1; +} + +__setup("ccw_timeout_log", ccw_timeout_log_setup); + +static void ccw_timeout_log(struct ccw_device *cdev) +{ + struct schib schib; + struct subchannel *sch; + struct io_subchannel_private *private; + int cc; + + sch = to_subchannel(cdev->dev.parent); + private = to_io_private(sch); + cc = stsch(sch->schid, &schib); + + printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, " + "device information:\n", get_clock()); + printk(KERN_WARNING "cio: orb:\n"); + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + &private->orb, sizeof(private->orb), 0); + printk(KERN_WARNING "cio: ccw device bus id: %s\n", cdev->dev.bus_id); + printk(KERN_WARNING "cio: subchannel bus id: %s\n", sch->dev.bus_id); + printk(KERN_WARNING "cio: subchannel lpm: %02x, opm: %02x, " + "vpm: %02x\n", sch->lpm, sch->opm, sch->vpm); + + if ((void *)(addr_t)private->orb.cpa == &private->sense_ccw || + (void *)(addr_t)private->orb.cpa == cdev->private->iccws) + printk(KERN_WARNING "cio: last channel program (intern):\n"); + else + printk(KERN_WARNING "cio: last channel program:\n"); + + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + (void *)(addr_t)private->orb.cpa, + sizeof(struct ccw1), 0); + printk(KERN_WARNING "cio: ccw device state: %d\n", + cdev->private->state); + printk(KERN_WARNING "cio: store subchannel returned: cc=%d\n", cc); + printk(KERN_WARNING "cio: schib:\n"); + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + &schib, sizeof(schib), 0); + printk(KERN_WARNING "cio: ccw device flags:\n"); + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + &cdev->private->flags, sizeof(cdev->private->flags), 0); +} + /* * Timeout function. It just triggers a DEV_EVENT_TIMEOUT. */ @@ -92,6 +145,8 @@ ccw_device_timeout(unsigned long data) cdev = (struct ccw_device *) data; spin_lock_irq(cdev->ccwlock); + if (timeout_log_enabled) + ccw_timeout_log(cdev); dev_fsm_event(cdev, DEV_EVENT_TIMEOUT); spin_unlock_irq(cdev->ccwlock); } @@ -122,9 +177,9 @@ device_kill_pending_timer(struct subchannel *sch) { struct ccw_device *cdev; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return; - cdev = sch->dev.driver_data; ccw_device_set_timeout(cdev, 0); } @@ -268,7 +323,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) switch (state) { case DEV_STATE_NOT_OPER: CIO_DEBUG(KERN_WARNING, 2, - "cio: SenseID : unknown device %04x on subchannel " + "SenseID : unknown device %04x on subchannel " "0.%x.%04x\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); break; @@ -294,7 +349,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) } /* Issue device info message. */ CIO_DEBUG(KERN_INFO, 2, - "cio: SenseID : device 0.%x.%04x reports: " + "SenseID : device 0.%x.%04x reports: " "CU Type/Mod = %04X/%02X, Dev Type/Mod = " "%04X/%02X\n", cdev->private->dev_id.ssid, @@ -304,7 +359,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) break; case DEV_STATE_BOXED: CIO_DEBUG(KERN_WARNING, 2, - "cio: SenseID : boxed device %04x on subchannel " + "SenseID : boxed device %04x on subchannel " "0.%x.%04x\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); break; @@ -349,7 +404,7 @@ ccw_device_oper_notify(struct work_struct *work) sch = to_subchannel(cdev->dev.parent); if (sch->driver && sch->driver->notify) { spin_unlock_irqrestore(cdev->ccwlock, flags); - ret = sch->driver->notify(&sch->dev, CIO_OPER); + ret = sch->driver->notify(sch, CIO_OPER); spin_lock_irqsave(cdev->ccwlock, flags); } else ret = 0; @@ -389,7 +444,7 @@ ccw_device_done(struct ccw_device *cdev, int state) if (state == DEV_STATE_BOXED) CIO_DEBUG(KERN_WARNING, 2, - "cio: Boxed device %04x on subchannel %04x\n", + "Boxed device %04x on subchannel %04x\n", cdev->private->dev_id.devno, sch->schid.sch_no); if (cdev->private->flags.donotify) { @@ -500,7 +555,8 @@ ccw_device_recognition(struct ccw_device *cdev) (cdev->private->state != DEV_STATE_BOXED)) return -EINVAL; sch = to_subchannel(cdev->dev.parent); - ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc); + ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc, + (u32)(addr_t)sch); if (ret != 0) /* Couldn't enable the subchannel for i/o. Sick device. */ return ret; @@ -587,9 +643,10 @@ ccw_device_verify_done(struct ccw_device *cdev, int err) default: /* Reset oper notify indication after verify error. */ cdev->private->flags.donotify = 0; - if (cdev->online) + if (cdev->online) { + ccw_device_set_timeout(cdev, 0); dev_fsm_event(cdev, DEV_EVENT_NOTOPER); - else + } else ccw_device_done(cdev, DEV_STATE_NOT_OPER); break; } @@ -610,7 +667,8 @@ ccw_device_online(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); if (css_init_done && !get_device(&cdev->dev)) return -ENODEV; - ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc); + ret = cio_enable_subchannel(sch, sch->schib.pmcw.isc, + (u32)(addr_t)sch); if (ret != 0) { /* Couldn't enable the subchannel for i/o. Sick device. */ if (ret == -ENODEV) @@ -937,7 +995,7 @@ void device_kill_io(struct subchannel *sch) int ret; struct ccw_device *cdev; - cdev = sch->dev.driver_data; + cdev = sch_get_cdev(sch); ret = ccw_device_cancel_halt_clear(cdev); if (ret == -EBUSY) { ccw_device_set_timeout(cdev, 3*HZ); @@ -990,7 +1048,8 @@ ccw_device_start_id(struct ccw_device *cdev, enum dev_event dev_event) struct subchannel *sch; sch = to_subchannel(cdev->dev.parent); - if (cio_enable_subchannel(sch, sch->schib.pmcw.isc) != 0) + if (cio_enable_subchannel(sch, sch->schib.pmcw.isc, + (u32)(addr_t)sch) != 0) /* Couldn't enable the subchannel for i/o. Sick device. */ return; @@ -1006,9 +1065,9 @@ device_trigger_reprobe(struct subchannel *sch) { struct ccw_device *cdev; - if (!sch->dev.driver_data) + cdev = sch_get_cdev(sch); + if (!cdev) return; - cdev = sch->dev.driver_data; if (cdev->private->state != DEV_STATE_DISCONNECTED) return; @@ -1028,7 +1087,7 @@ device_trigger_reprobe(struct subchannel *sch) sch->schib.pmcw.ena = 0; if ((sch->lpm & (sch->lpm - 1)) != 0) sch->schib.pmcw.mp = 1; - sch->schib.pmcw.intparm = (__u32)(unsigned long)sch; + sch->schib.pmcw.intparm = (u32)(addr_t)sch; /* We should also udate ssd info, but this has to wait. */ /* Check if this is another device which appeared on the same sch. */ if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) { @@ -1223,21 +1282,4 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = { }, }; -/* - * io_subchannel_irq is called for "real" interrupts or for status - * pending conditions on msch. - */ -void -io_subchannel_irq (struct device *pdev) -{ - struct ccw_device *cdev; - - cdev = to_subchannel(pdev)->dev.driver_data; - - CIO_TRACE_EVENT (3, "IRQ"); - CIO_TRACE_EVENT (3, pdev->bus_id); - if (cdev) - dev_fsm_event(cdev, DEV_EVENT_INTERRUPT); -} - EXPORT_SYMBOL_GPL(ccw_device_set_timeout); diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index 156f3f9786b..918b8b89cf9 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -24,6 +24,7 @@ #include "css.h" #include "device.h" #include "ioasm.h" +#include "io_sch.h" /* * Input : @@ -219,11 +220,13 @@ ccw_device_check_sense_id(struct ccw_device *cdev) return -EAGAIN; } if (irb->scsw.cc == 3) { - if ((sch->orb.lpm & - sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0) + u8 lpm; + + lpm = to_io_private(sch)->orb.lpm; + if ((lpm & sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0) CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x " "on subchannel 0.%x.%04x is " - "'not operational'\n", sch->orb.lpm, + "'not operational'\n", lpm, cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); return -EACCES; diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index 7fd2dadc329..49b58eb0fab 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -501,7 +501,7 @@ ccw_device_stlck(struct ccw_device *cdev) return -ENOMEM; } spin_lock_irqsave(sch->lock, flags); - ret = cio_enable_subchannel(sch, 3); + ret = cio_enable_subchannel(sch, 3, (u32)(addr_t)sch); if (ret) goto out_unlock; /* diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index cb1879a9681..c52449a1f9f 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -22,6 +22,7 @@ #include "css.h" #include "device.h" #include "ioasm.h" +#include "io_sch.h" /* * Helper function called from interrupt context to decide whether an @@ -155,10 +156,13 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev) return -EAGAIN; } if (irb->scsw.cc == 3) { + u8 lpm; + + lpm = to_io_private(sch)->orb.lpm; CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, - sch->schid.sch_no, sch->orb.lpm); + sch->schid.sch_no, lpm); return -EACCES; } i = 8 - ffs(cdev->private->imask); diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index aa96e675259..ebe0848cfe3 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -20,6 +20,7 @@ #include "css.h" #include "device.h" #include "ioasm.h" +#include "io_sch.h" /* * Check for any kind of channel or interface control check but don't @@ -310,6 +311,7 @@ int ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb) { struct subchannel *sch; + struct ccw1 *sense_ccw; sch = to_subchannel(cdev->dev.parent); @@ -326,15 +328,16 @@ ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb) /* * We have ending status but no sense information. Do a basic sense. */ - sch->sense_ccw.cmd_code = CCW_CMD_BASIC_SENSE; - sch->sense_ccw.cda = (__u32) __pa(cdev->private->irb.ecw); - sch->sense_ccw.count = SENSE_MAX_COUNT; - sch->sense_ccw.flags = CCW_FLAG_SLI; + sense_ccw = &to_io_private(sch)->sense_ccw; + sense_ccw->cmd_code = CCW_CMD_BASIC_SENSE; + sense_ccw->cda = (__u32) __pa(cdev->private->irb.ecw); + sense_ccw->count = SENSE_MAX_COUNT; + sense_ccw->flags = CCW_FLAG_SLI; /* Reset internal retry indication. */ cdev->private->flags.intretry = 0; - return cio_start (sch, &sch->sense_ccw, 0xff); + return cio_start(sch, sense_ccw, 0xff); } /* diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h new file mode 100644 index 00000000000..8c613160bfc --- /dev/null +++ b/drivers/s390/cio/io_sch.h @@ -0,0 +1,163 @@ +#ifndef S390_IO_SCH_H +#define S390_IO_SCH_H + +#include "schid.h" + +/* + * operation request block + */ +struct orb { + u32 intparm; /* interruption parameter */ + u32 key : 4; /* flags, like key, suspend control, etc. */ + u32 spnd : 1; /* suspend control */ + u32 res1 : 1; /* reserved */ + u32 mod : 1; /* modification control */ + u32 sync : 1; /* synchronize control */ + u32 fmt : 1; /* format control */ + u32 pfch : 1; /* prefetch control */ + u32 isic : 1; /* initial-status-interruption control */ + u32 alcc : 1; /* address-limit-checking control */ + u32 ssic : 1; /* suppress-suspended-interr. control */ + u32 res2 : 1; /* reserved */ + u32 c64 : 1; /* IDAW/QDIO 64 bit control */ + u32 i2k : 1; /* IDAW 2/4kB block size control */ + u32 lpm : 8; /* logical path mask */ + u32 ils : 1; /* incorrect length */ + u32 zero : 6; /* reserved zeros */ + u32 orbx : 1; /* ORB extension control */ + u32 cpa; /* channel program address */ +} __attribute__ ((packed, aligned(4))); + +struct io_subchannel_private { + struct orb orb; /* operation request block */ + struct ccw1 sense_ccw; /* static ccw for sense command */ +} __attribute__ ((aligned(8))); + +#define to_io_private(n) ((struct io_subchannel_private *)n->private) +#define sch_get_cdev(n) (dev_get_drvdata(&n->dev)) +#define sch_set_cdev(n, c) (dev_set_drvdata(&n->dev, c)) + +#define MAX_CIWS 8 + +/* + * sense-id response buffer layout + */ +struct senseid { + /* common part */ + u8 reserved; /* always 0x'FF' */ + u16 cu_type; /* control unit type */ + u8 cu_model; /* control unit model */ + u16 dev_type; /* device type */ + u8 dev_model; /* device model */ + u8 unused; /* padding byte */ + /* extended part */ + struct ciw ciw[MAX_CIWS]; /* variable # of CIWs */ +} __attribute__ ((packed, aligned(4))); + +struct ccw_device_private { + struct ccw_device *cdev; + struct subchannel *sch; + int state; /* device state */ + atomic_t onoff; + unsigned long registered; + struct ccw_dev_id dev_id; /* device id */ + struct subchannel_id schid; /* subchannel number */ + u8 imask; /* lpm mask for SNID/SID/SPGID */ + int iretry; /* retry counter SNID/SID/SPGID */ + struct { + unsigned int fast:1; /* post with "channel end" */ + unsigned int repall:1; /* report every interrupt status */ + unsigned int pgroup:1; /* do path grouping */ + unsigned int force:1; /* allow forced online */ + } __attribute__ ((packed)) options; + struct { + unsigned int pgid_single:1; /* use single path for Set PGID */ + unsigned int esid:1; /* Ext. SenseID supported by HW */ + unsigned int dosense:1; /* delayed SENSE required */ + unsigned int doverify:1; /* delayed path verification */ + unsigned int donotify:1; /* call notify function */ + unsigned int recog_done:1; /* dev. recog. complete */ + unsigned int fake_irb:1; /* deliver faked irb */ + unsigned int intretry:1; /* retry internal operation */ + } __attribute__((packed)) flags; + unsigned long intparm; /* user interruption parameter */ + struct qdio_irq *qdio_data; + struct irb irb; /* device status */ + struct senseid senseid; /* SenseID info */ + struct pgid pgid[8]; /* path group IDs per chpid*/ + struct ccw1 iccws[2]; /* ccws for SNID/SID/SPGID commands */ + struct work_struct kick_work; + wait_queue_head_t wait_q; + struct timer_list timer; + void *cmb; /* measurement information */ + struct list_head cmb_list; /* list of measured devices */ + u64 cmb_start_time; /* clock value of cmb reset */ + void *cmb_wait; /* deferred cmb enable/disable */ +}; + +static inline int ssch(struct subchannel_id schid, volatile struct orb *addr) +{ + register struct subchannel_id reg1 asm("1") = schid; + int ccode; + + asm volatile( + " ssch 0(%2)\n" + " ipm %0\n" + " srl %0,28" + : "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); + return ccode; +} + +static inline int rsch(struct subchannel_id schid) +{ + register struct subchannel_id reg1 asm("1") = schid; + int ccode; + + asm volatile( + " rsch\n" + " ipm %0\n" + " srl %0,28" + : "=d" (ccode) : "d" (reg1) : "cc"); + return ccode; +} + +static inline int csch(struct subchannel_id schid) +{ + register struct subchannel_id reg1 asm("1") = schid; + int ccode; + + asm volatile( + " csch\n" + " ipm %0\n" + " srl %0,28" + : "=d" (ccode) : "d" (reg1) : "cc"); + return ccode; +} + +static inline int hsch(struct subchannel_id schid) +{ + register struct subchannel_id reg1 asm("1") = schid; + int ccode; + + asm volatile( + " hsch\n" + " ipm %0\n" + " srl %0,28" + : "=d" (ccode) : "d" (reg1) : "cc"); + return ccode; +} + +static inline int xsch(struct subchannel_id schid) +{ + register struct subchannel_id reg1 asm("1") = schid; + int ccode; + + asm volatile( + " .insn rre,0xb2760000,%1,0\n" + " ipm %0\n" + " srl %0,28" + : "=d" (ccode) : "d" (reg1) : "cc"); + return ccode; +} + +#endif diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 7153dd95908..652ea3625f9 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -109,72 +109,6 @@ static inline int tpi( volatile struct tpi_info *addr) return ccode; } -static inline int ssch(struct subchannel_id schid, - volatile struct orb *addr) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " ssch 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); - return ccode; -} - -static inline int rsch(struct subchannel_id schid) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " rsch\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1) : "cc"); - return ccode; -} - -static inline int csch(struct subchannel_id schid) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " csch\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1) : "cc"); - return ccode; -} - -static inline int hsch(struct subchannel_id schid) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " hsch\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1) : "cc"); - return ccode; -} - -static inline int xsch(struct subchannel_id schid) -{ - register struct subchannel_id reg1 asm ("1") = schid; - int ccode; - - asm volatile( - " .insn rre,0xb2760000,%1,0\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1) : "cc"); - return ccode; -} - static inline int chsc(void *chsc_area) { typedef struct { char _[4096]; } addr_type; diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 40a3208c7cf..e2a781b6b21 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -48,11 +48,11 @@ #include <asm/debug.h> #include <asm/s390_rdev.h> #include <asm/qdio.h> +#include <asm/airq.h> #include "cio.h" #include "css.h" #include "device.h" -#include "airq.h" #include "qdio.h" #include "ioasm.h" #include "chsc.h" @@ -96,7 +96,7 @@ static debug_info_t *qdio_dbf_slsb_in; static volatile struct qdio_q *tiq_list=NULL; /* volatile as it could change during a while loop */ static DEFINE_SPINLOCK(ttiq_list_lock); -static int register_thinint_result; +static void *tiqdio_ind; static void tiqdio_tl(unsigned long); static DECLARE_TASKLET(tiqdio_tasklet,tiqdio_tl,0); @@ -399,7 +399,7 @@ qdio_get_indicator(void) { int i; - for (i=1;i<INDICATORS_PER_CACHELINE;i++) + for (i = 0; i < INDICATORS_PER_CACHELINE; i++) if (!indicator_used[i]) { indicator_used[i]=1; return indicators+i; @@ -1408,8 +1408,7 @@ __tiqdio_inbound_processing(struct qdio_q *q, int spare_ind_was_set) if (q->hydra_gives_outbound_pcis) { if (!q->siga_sync_done_on_thinints) { SYNC_MEMORY_ALL; - } else if ((!q->siga_sync_done_on_outb_tis)&& - (q->hydra_gives_outbound_pcis)) { + } else if (!q->siga_sync_done_on_outb_tis) { SYNC_MEMORY_ALL_OUTB; } } else { @@ -1911,8 +1910,7 @@ qdio_fill_thresholds(struct qdio_irq *irq_ptr, } } -static int -tiqdio_thinint_handler(void) +static void tiqdio_thinint_handler(void *ind, void *drv_data) { QDIO_DBF_TEXT4(0,trace,"thin_int"); @@ -1925,7 +1923,6 @@ tiqdio_thinint_handler(void) tiqdio_clear_global_summary(); tiqdio_inbound_checks(); - return 0; } static void @@ -2445,7 +2442,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero) real_addr_dev_st_chg_ind=0; } else { real_addr_local_summary_bit= - virt_to_phys((volatile void *)indicators); + virt_to_phys((volatile void *)tiqdio_ind); real_addr_dev_st_chg_ind= virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind); } @@ -3740,23 +3737,25 @@ static void tiqdio_register_thinints(void) { char dbf_text[20]; - register_thinint_result= - s390_register_adapter_interrupt(&tiqdio_thinint_handler); - if (register_thinint_result) { - sprintf(dbf_text,"regthn%x",(register_thinint_result&0xff)); + + tiqdio_ind = + s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL); + if (IS_ERR(tiqdio_ind)) { + sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind)); QDIO_DBF_TEXT0(0,setup,dbf_text); QDIO_PRINT_ERR("failed to register adapter handler " \ - "(rc=%i).\nAdapter interrupts might " \ + "(rc=%li).\nAdapter interrupts might " \ "not work. Continuing.\n", - register_thinint_result); + PTR_ERR(tiqdio_ind)); + tiqdio_ind = NULL; } } static void tiqdio_unregister_thinints(void) { - if (!register_thinint_result) - s390_unregister_adapter_interrupt(&tiqdio_thinint_handler); + if (tiqdio_ind) + s390_unregister_adapter_interrupt(tiqdio_ind); } static int @@ -3768,8 +3767,8 @@ qdio_get_qdio_memory(void) for (i=1;i<INDICATORS_PER_CACHELINE;i++) indicator_used[i]=0; indicators = kzalloc(sizeof(__u32)*(INDICATORS_PER_CACHELINE), - GFP_KERNEL); - if (!indicators) + GFP_KERNEL); + if (!indicators) return -ENOMEM; return 0; } @@ -3780,7 +3779,6 @@ qdio_release_qdio_memory(void) kfree(indicators); } - static void qdio_unregister_dbf_views(void) { diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 6d7aad18f6f..37870e4e938 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -57,7 +57,7 @@ of the queue to 0 */ #define QDIO_ESTABLISH_TIMEOUT (1*HZ) -#define QDIO_ACTIVATE_TIMEOUT ((5*HZ)>>10) +#define QDIO_ACTIVATE_TIMEOUT (5*HZ) #define QDIO_CLEANUP_CLEAR_TIMEOUT (20*HZ) #define QDIO_CLEANUP_HALT_TIMEOUT (10*HZ) #define QDIO_FORCE_CHECK_TIMEOUT (10*HZ) diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index 3561982749e..c3076217871 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -2416,7 +2416,7 @@ init_ccw_bk(struct net_device *dev) privptr->p_buff_pages_perwrite); #endif if (p_buff==NULL) { - printk(KERN_INFO "%s:%s __get_free_pages" + printk(KERN_INFO "%s:%s __get_free_pages " "for writes buf failed : get is for %d pages\n", dev->name, __FUNCTION__, diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 0fd663b23d7..7bfe8d707a3 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -1115,7 +1115,7 @@ list_modified: rc = lcs_send_setipm(card, ipm); spin_lock_irqsave(&card->ipm_lock, flags); if (rc) { - PRINT_INFO("Adding multicast address failed." + PRINT_INFO("Adding multicast address failed. " "Table possibly full!\n"); /* store ipm in failed list -> will be added * to ipm_list again, so a retry will be done diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index d6e93f15440..f3d893cfe61 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -198,8 +198,7 @@ struct iucv_connection { /** * Linked list of all connection structs. */ -static struct list_head iucv_connection_list = - LIST_HEAD_INIT(iucv_connection_list); +static LIST_HEAD(iucv_connection_list); static DEFINE_RWLOCK(iucv_connection_rwlock); /** diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c index f1ff165a5e0..46ecd03a597 100644 --- a/drivers/s390/net/qeth_proc.c +++ b/drivers/s390/net/qeth_proc.c @@ -146,7 +146,7 @@ qeth_procfile_seq_show(struct seq_file *s, void *it) return 0; } -static struct seq_operations qeth_procfile_seq_ops = { +static const struct seq_operations qeth_procfile_seq_ops = { .start = qeth_procfile_seq_start, .stop = qeth_procfile_seq_stop, .next = qeth_procfile_seq_next, @@ -264,7 +264,7 @@ qeth_perf_procfile_seq_show(struct seq_file *s, void *it) return 0; } -static struct seq_operations qeth_perf_procfile_seq_ops = { +static const struct seq_operations qeth_perf_procfile_seq_ops = { .start = qeth_procfile_seq_start, .stop = qeth_procfile_seq_stop, .next = qeth_procfile_seq_next, diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c index 47bb47b4858..8735a415a11 100644 --- a/drivers/s390/net/smsgiucv.c +++ b/drivers/s390/net/smsgiucv.c @@ -42,7 +42,7 @@ MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver"); static struct iucv_path *smsg_path; static DEFINE_SPINLOCK(smsg_list_lock); -static struct list_head smsg_list = LIST_HEAD_INIT(smsg_list); +static LIST_HEAD(smsg_list); static int smsg_path_pending(struct iucv_path *, u8 ipvmid[8], u8 ipuser[16]); static void smsg_message_pending(struct iucv_path *, struct iucv_message *); diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 4f86c0e1296..2dc8110ebf7 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1286,7 +1286,7 @@ zfcp_erp_strategy_do_action(struct zfcp_erp_action *erp_action) * note: no lock in subsequent strategy routines * (this allows these routine to call schedule, e.g. * kmalloc with such flags or qdio_initialize & friends) - * Note: in case of timeout, the seperate strategies will fail + * Note: in case of timeout, the separate strategies will fail * anyhow. No need for a special action. Even worse, a nameserver * failure would not wake up waiting ports without the call. */ diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index fe57941ab55..e45f85f7c7e 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -502,7 +502,7 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req) fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_SQ_NO_RECOM: - ZFCP_LOG_NORMAL("bug: No recommendation could be given for a" + ZFCP_LOG_NORMAL("bug: No recommendation could be given for a " "problem on the adapter %s " "Stopping all operations on this adapter. ", zfcp_get_busid_by_adapter(fsf_req->adapter)); @@ -813,7 +813,7 @@ zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *fsf_req) read_unlock_irqrestore(&zfcp_data.config_lock, flags); if (!port || (port->d_id != (status_buffer->d_id & ZFCP_DID_MASK))) { - ZFCP_LOG_NORMAL("bug: Reopen port indication received for" + ZFCP_LOG_NORMAL("bug: Reopen port indication received for " "nonexisting port with d_id 0x%06x on " "adapter %s. Ignored.\n", status_buffer->d_id & ZFCP_DID_MASK, @@ -2281,7 +2281,7 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) &lock_flags, &fsf_req); if (retval) { ZFCP_LOG_INFO("error: Out of resources. Could not create an " - "exchange port data request for" + "exchange port data request for " "the adapter %s.\n", zfcp_get_busid_by_adapter(adapter)); write_unlock_irqrestore(&adapter->request_queue.queue_lock, @@ -2340,7 +2340,7 @@ zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, 0, NULL, &lock_flags, &fsf_req); if (retval) { ZFCP_LOG_INFO("error: Out of resources. Could not create an " - "exchange port data request for" + "exchange port data request for " "the adapter %s.\n", zfcp_get_busid_by_adapter(adapter)); write_unlock_irqrestore(&adapter->request_queue.queue_lock, @@ -4725,7 +4725,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags, /* allocate new FSF request */ fsf_req = zfcp_fsf_req_alloc(pool, req_flags); if (unlikely(NULL == fsf_req)) { - ZFCP_LOG_DEBUG("error: Could not put an FSF request into" + ZFCP_LOG_DEBUG("error: Could not put an FSF request into " "the outbound (send) queue.\n"); ret = -ENOMEM; goto failed_fsf_req; diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 51d92b196ee..22fdc17e0d0 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -529,7 +529,7 @@ zfcp_qdio_sbals_wipe(struct zfcp_fsf_req *fsf_req) /** - * zfcp_qdio_sbale_fill - set address and lenght in current SBALE + * zfcp_qdio_sbale_fill - set address and length in current SBALE * on request_queue */ static void diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c index facb6785561..6a48dfa1efe 100644 --- a/drivers/serial/21285.c +++ b/drivers/serial/21285.c @@ -277,6 +277,8 @@ serial21285_set_termios(struct uart_port *port, struct ktermios *termios, if (termios->c_iflag & INPCK) port->read_status_mask |= RXSTAT_FRAME | RXSTAT_PARITY; + tty_encode_baud_rate(tty, baud, baud); + /* * Which character status flags should we ignore? */ diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 6f475b60986..ac2a3ef28d5 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -442,7 +442,8 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) set_bfin_dma_config(DIR_READ, DMA_FLOW_STOP, INTR_ON_BUF, DIMENSION_LINEAR, - DATA_SIZE_8)); + DATA_SIZE_8, + DMA_SYNC_RESTART)); set_dma_start_addr(uart->tx_dma_channel, (unsigned long)(xmit->buf+xmit->tail)); set_dma_x_count(uart->tx_dma_channel, uart->tx_count); set_dma_x_modify(uart->tx_dma_channel, 1); @@ -689,7 +690,8 @@ static int bfin_serial_startup(struct uart_port *port) set_dma_config(uart->rx_dma_channel, set_bfin_dma_config(DIR_WRITE, DMA_FLOW_AUTO, INTR_ON_ROW, DIMENSION_2D, - DATA_SIZE_8)); + DATA_SIZE_8, + DMA_SYNC_RESTART)); set_dma_x_count(uart->rx_dma_channel, DMA_RX_XCOUNT); set_dma_x_modify(uart->rx_dma_channel, 1); set_dma_y_count(uart->rx_dma_channel, DMA_RX_YCOUNT); diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index f81d08d6538..77a3759d6fc 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -308,7 +308,7 @@ config USB_S3C2410_DEBUG config USB_GADGET_AT91 boolean "AT91 USB Device Port" - depends on ARCH_AT91 && !ARCH_AT91SAM9RL + depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 select USB_GADGET_SELECTED help Many Atmel AT91 processors (such as the AT91RM2000) have a diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 5cfa3d1c441..74e1f4be10b 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -47,7 +47,7 @@ #endif #ifdef CONFIG_TPS65010 -#include <asm/arch/tps65010.h> +#include <linux/i2c/tps65010.h> #else #define LOW 0 diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index ca2a6abbc11..6c52c66b659 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -112,9 +112,9 @@ static int isp1301_detach(struct i2c_client *client); static int isp1301_command(struct i2c_client *client, unsigned int cmd, void *arg); -static unsigned short normal_i2c[] = +static const unsigned short normal_i2c[] = { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END }; -static unsigned short dummy_i2c_addrlist[] = { I2C_CLIENT_END }; +static const unsigned short dummy_i2c_addrlist[] = { I2C_CLIENT_END }; static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, @@ -123,7 +123,6 @@ static struct i2c_client_address_data addr_data = { }; struct i2c_driver isp1301_driver = { - .id = I2C_DRIVERID_I2CDEV, /* Fake Id */ .class = I2C_CLASS_HWMON, .attach_adapter = isp1301_probe, .detach_client = isp1301_detach, diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 5b3dbcfcda4..758435f8a6f 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -889,7 +889,7 @@ config FB_S1D13XXX config FB_ATMEL tristate "AT91/AT32 LCD Controller support" - depends on FB && (ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || AVR32) + depends on FB && (ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || AVR32) select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 7c30cc8df71..f8e71114750 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -30,7 +30,7 @@ #define ATMEL_LCDC_CVAL_DEFAULT 0xc8 #define ATMEL_LCDC_DMA_BURST_LEN 8 -#if defined(CONFIG_ARCH_AT91SAM9263) +#if defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91CAP9) #define ATMEL_LCDC_FIFO_SIZE 2048 #else #define ATMEL_LCDC_FIFO_SIZE 512 diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 74d11c31898..c8e7427a0bc 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -224,7 +224,8 @@ static int config_dma(struct bfin_bf54xfb_info *fbi) set_dma_config(CH_EPPI0, set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO, INTR_DISABLE, DIMENSION_2D, - DATA_SIZE_32)); + DATA_SIZE_32, + DMA_NOSYNC_KEEP_DMA_BUF)); set_dma_x_count(CH_EPPI0, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE); set_dma_x_modify(CH_EPPI0, DMA_BUS_SIZE / 8); set_dma_y_count(CH_EPPI0, LCD_Y_RES); @@ -263,8 +264,7 @@ static int request_ports(struct bfin_bf54xfb_info *fbi) } } - gpio_direction_output(disp); - gpio_set_value(disp, 1); + gpio_direction_output(disp, 1); return 0; } diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c index 49cd53e46c0..0cd58f84fb4 100644 --- a/drivers/video/matrox/matroxfb_maven.c +++ b/drivers/video/matrox/matroxfb_maven.c @@ -1232,7 +1232,7 @@ static int maven_shutdown_client(struct i2c_client* clnt) { return 0; } -static unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END }; I2C_CLIENT_INSMOD; static struct i2c_driver maven_driver; diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c index c604d935c18..31e978349a8 100644 --- a/drivers/video/omap/lcd_h3.c +++ b/drivers/video/omap/lcd_h3.c @@ -21,9 +21,9 @@ #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/i2c/tps65010.h> #include <asm/arch/gpio.h> -#include <asm/arch/tps65010.h> #include <asm/arch/omapfb.h> #define MODULE_NAME "omapfb-lcd_h3" diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c index d93eb626b2f..0fd5820d5c6 100644 --- a/drivers/w1/masters/ds2482.c +++ b/drivers/w1/masters/ds2482.c @@ -29,7 +29,7 @@ * However, the chip cannot be detected without doing an i2c write, * so use the force module parameter. */ -static unsigned short normal_i2c[] = {I2C_CLIENT_END}; +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /** * Insmod parameters diff --git a/fs/Kconfig b/fs/Kconfig index b6df18f1f67..9656139d2e9 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1899,13 +1899,15 @@ config CIFS file servers such as Windows 2000 (including Windows 2003, NT 4 and Windows XP) as well by Samba (which provides excellent CIFS server support for Linux and many other operating systems). Limited - support for OS/2 and Windows ME and similar servers is provided as well. - - The intent of the cifs module is to provide an advanced - network file system client for mounting to CIFS compliant servers, - including support for dfs (hierarchical name space), secure per-user - session establishment, safe distributed caching (oplock), optional - packet signing, Unicode and other internationalization improvements. + support for OS/2 and Windows ME and similar servers is provided as + well. + + The cifs module provides an advanced network file system + client for mounting to CIFS compliant servers. It includes + support for DFS (hierarchical name space), secure per-user + session establishment via Kerberos or NTLM or NTLMv2, + safe distributed caching (oplock), optional packet + signing, Unicode and other internationalization improvements. If you need to mount to Samba or Windows from this machine, say Y. config CIFS_STATS @@ -1937,7 +1939,8 @@ config CIFS_WEAK_PW_HASH (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) security mechanisms. These hash the password more securely than the mechanisms used in the older LANMAN version of the - SMB protocol needed to establish sessions with old SMB servers. + SMB protocol but LANMAN based authentication is needed to + establish sessions with some old SMB servers. Enabling this option allows the cifs module to mount to older LANMAN based servers such as OS/2 and Windows 95, but such @@ -1945,8 +1948,8 @@ config CIFS_WEAK_PW_HASH security mechanisms if you are on a public network. Unless you have a need to access old SMB servers (and are on a private network) you probably want to say N. Even if this support - is enabled in the kernel build, they will not be used - automatically. At runtime LANMAN mounts are disabled but + is enabled in the kernel build, LANMAN authentication will not be + used automatically. At runtime LANMAN mounts are disabled but can be set to required (or optional) either in /proc/fs/cifs (see fs/cifs/README for more detail) or via an option on the mount command. This support is disabled by @@ -2012,12 +2015,22 @@ config CIFS_UPCALL depends on CIFS_EXPERIMENTAL depends on KEYS help - Enables an upcall mechanism for CIFS which will be used to contact - userspace helper utilities to provide SPNEGO packaged Kerberos - tickets which are needed to mount to certain secure servers + Enables an upcall mechanism for CIFS which accesses + userspace helper utilities to provide SPNEGO packaged (RFC 4178) + Kerberos tickets which are needed to mount to certain secure servers (for which more secure Kerberos authentication is required). If unsure, say N. +config CIFS_DFS_UPCALL + bool "DFS feature support (EXPERIMENTAL)" + depends on CIFS_EXPERIMENTAL + depends on KEYS + help + Enables an upcall mechanism for CIFS which contacts userspace + helper utilities to provide server name resolution (host names to + IP addresses) which is needed for implicit mounts of DFS junction + points. If unsure, say N. + config NCP_FS tristate "NCP file system support (to mount NetWare volumes)" depends on IPX!=n || INET diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index a609599287a..edd248367b3 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -3,7 +3,10 @@ Version 1.52 Fix oops on second mount to server when null auth is used. Enable experimental Kerberos support. Return writebehind errors on flush and sync so that events like out of disk space get reported properly on -cached files. +cached files. Fix setxattr failure to certain Samba versions. Fix mount +of second share to disconnected server session (autoreconnect on this). +Add ability to modify cifs acls for handling chmod (when mounted with +cifsacl flag). Version 1.51 ------------ diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile index 45e42fb97c1..6ba43fb346f 100644 --- a/fs/cifs/Makefile +++ b/fs/cifs/Makefile @@ -9,3 +9,5 @@ cifs-y := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o \ readdir.o ioctl.o sess.o export.o cifsacl.o cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o + +cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o diff --git a/fs/cifs/README b/fs/cifs/README index bf11329ac78..c623e2f9c5d 100644 --- a/fs/cifs/README +++ b/fs/cifs/README @@ -56,7 +56,8 @@ the CIFS VFS web site) copy it to the same directory in which mount.smbfs and similar files reside (usually /sbin). Although the helper software is not required, mount.cifs is recommended. Eventually the Samba 3.0 utility program "net" may also be helpful since it may someday provide easier mount syntax for -users who are used to Windows e.g. net use <mount point> <UNC name or cifs URL> +users who are used to Windows e.g. + net use <mount point> <UNC name or cifs URL> Note that running the Winbind pam/nss module (logon service) on all of your Linux clients is useful in mapping Uids and Gids consistently across the domain to the proper network user. The mount.cifs mount helper can be @@ -248,7 +249,7 @@ A partial list of the supported mount options follows: the CIFS session. password The user password. If the mount helper is installed, the user will be prompted for password - if it is not supplied. + if not supplied. ip The ip address of the target server unc The target server Universal Network Name (export) to mount. @@ -283,7 +284,7 @@ A partial list of the supported mount options follows: can be enabled by specifying file_mode and dir_mode on the client. Note that the mount.cifs helper must be at version 1.10 or higher to support specifying the uid - (or gid) in non-numberic form. + (or gid) in non-numeric form. gid Set the default gid for inodes (similar to above). file_mode If CIFS Unix extensions are not supported by the server this overrides the default mode for file inodes. @@ -417,9 +418,10 @@ A partial list of the supported mount options follows: acl Allow setfacl and getfacl to manage posix ACLs if server supports them. (default) noacl Do not allow setfacl and getfacl calls on this mount - user_xattr Allow getting and setting user xattrs as OS/2 EAs (extended - attributes) to the server (default) e.g. via setfattr - and getfattr utilities. + user_xattr Allow getting and setting user xattrs (those attributes whose + name begins with "user." or "os2.") as OS/2 EAs (extended + attributes) to the server. This allows support of the + setfattr and getfattr utilities. (default) nouser_xattr Do not allow getfattr/setfattr to get/set/list xattrs mapchars Translate six of the seven reserved characters (not backslash) *?<>|: @@ -434,6 +436,7 @@ A partial list of the supported mount options follows: nomapchars Do not translate any of these seven characters (default). nocase Request case insensitive path name matching (case sensitive is the default if the server suports it). + (mount option "ignorecase" is identical to "nocase") posixpaths If CIFS Unix extensions are supported, attempt to negotiate posix path name support which allows certain characters forbidden in typical CIFS filenames, without @@ -485,6 +488,9 @@ A partial list of the supported mount options follows: ntlmv2i Use NTLMv2 password hashing with packet signing lanman (if configured in kernel config) use older lanman hash +hard Retry file operations if server is not responding +soft Limit retries to unresponsive servers (usually only + one retry) before returning an error. (default) The mount.cifs mount helper also accepts a few mount options before -o including: @@ -535,8 +541,8 @@ SecurityFlags Flags which control security negotiation and must use NTLM 0x02002 may use NTLMv2 0x00004 must use NTLMv2 0x04004 - may use Kerberos security (not implemented yet) 0x00008 - must use Kerberos (not implemented yet) 0x08008 + may use Kerberos security 0x00008 + must use Kerberos 0x08008 may use lanman (weak) password hash 0x00010 must use lanman password hash 0x10010 may use plaintext passwords 0x00020 @@ -626,6 +632,6 @@ returned success. Also note that "cat /proc/fs/cifs/DebugData" will display information about the active sessions and the shares that are mounted. -Enabling Kerberos (extended security) works when CONFIG_CIFS_EXPERIMENTAL is enabled -but requires a user space helper (from the Samba project). NTLM and NTLMv2 and -LANMAN support do not require this helpr. +Enabling Kerberos (extended security) works when CONFIG_CIFS_EXPERIMENTAL is +on but requires a user space helper (from the Samba project). NTLM and NTLMv2 and +LANMAN support do not require this helper. diff --git a/fs/cifs/TODO b/fs/cifs/TODO index a8852c20072..92c9feac440 100644 --- a/fs/cifs/TODO +++ b/fs/cifs/TODO @@ -1,4 +1,4 @@ -Version 1.49 April 26, 2007 +Version 1.52 January 3, 2008 A Partial List of Missing Features ================================== @@ -16,16 +16,14 @@ SecurityDescriptors c) Better pam/winbind integration (e.g. to handle uid mapping better) -d) Verify that Kerberos signing works - -e) Cleanup now unneeded SessSetup code in +d) Cleanup now unneeded SessSetup code in fs/cifs/connect.c and add back in NTLMSSP code if any servers need it -f) MD5-HMAC signing SMB PDUs when SPNEGO style SessionSetup -used (Kerberos or NTLMSSP). Signing alreadyimplemented for NTLM -and raw NTLMSSP already. This is important when enabling -extended security and mounting to Windows 2003 Servers +e) ms-dfs and ms-dfs host name resolution cleanup + +f) fix NTLMv2 signing when two mounts with different users to same +server. g) Directory entry caching relies on a 1 second timer, rather than using FindNotify or equivalent. - (started) diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c new file mode 100644 index 00000000000..413ee2349d1 --- /dev/null +++ b/fs/cifs/cifs_dfs_ref.c @@ -0,0 +1,377 @@ +/* + * Contains the CIFS DFS referral mounting routines used for handling + * traversal via DFS junction point + * + * Copyright (c) 2007 Igor Mammedov + * Copyright (C) International Business Machines Corp., 2008 + * Author(s): Igor Mammedov (niallain@gmail.com) + * Steve French (sfrench@us.ibm.com) + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/dcache.h> +#include <linux/mount.h> +#include <linux/namei.h> +#include <linux/vfs.h> +#include <linux/fs.h> +#include "cifsglob.h" +#include "cifsproto.h" +#include "cifsfs.h" +#include "dns_resolve.h" +#include "cifs_debug.h" + +LIST_HEAD(cifs_dfs_automount_list); + +/* + * DFS functions +*/ + +void dfs_shrink_umount_helper(struct vfsmount *vfsmnt) +{ + mark_mounts_for_expiry(&cifs_dfs_automount_list); + mark_mounts_for_expiry(&cifs_dfs_automount_list); + shrink_submounts(vfsmnt, &cifs_dfs_automount_list); +} + +/** + * cifs_get_share_name - extracts share name from UNC + * @node_name: pointer to UNC string + * + * Extracts sharename form full UNC. + * i.e. strips from UNC trailing path that is not part of share + * name and fixup missing '\' in the begining of DFS node refferal + * if neccessary. + * Returns pointer to share name on success or NULL on error. + * Caller is responsible for freeing returned string. + */ +static char *cifs_get_share_name(const char *node_name) +{ + int len; + char *UNC; + char *pSep; + + len = strlen(node_name); + UNC = kmalloc(len+2 /*for term null and additional \ if it's missed */, + GFP_KERNEL); + if (!UNC) + return NULL; + + /* get share name and server name */ + if (node_name[1] != '\\') { + UNC[0] = '\\'; + strncpy(UNC+1, node_name, len); + len++; + UNC[len] = 0; + } else { + strncpy(UNC, node_name, len); + UNC[len] = 0; + } + + /* find server name end */ + pSep = memchr(UNC+2, '\\', len-2); + if (!pSep) { + cERROR(1, ("%s: no server name end in node name: %s", + __FUNCTION__, node_name)); + kfree(UNC); + return NULL; + } + + /* find sharename end */ + pSep++; + pSep = memchr(UNC+(pSep-UNC), '\\', len-(pSep-UNC)); + if (!pSep) { + cERROR(1, ("%s:2 cant find share name in node name: %s", + __FUNCTION__, node_name)); + kfree(UNC); + return NULL; + } + /* trim path up to sharename end + * * now we have share name in UNC */ + *pSep = 0; + + return UNC; +} + + +/** + * compose_mount_options - creates mount options for refferral + * @sb_mountdata: parent/root DFS mount options (template) + * @ref_unc: refferral server UNC + * @devname: pointer for saving device name + * + * creates mount options for submount based on template options sb_mountdata + * and replacing unc,ip,prefixpath options with ones we've got form ref_unc. + * + * Returns: pointer to new mount options or ERR_PTR. + * Caller is responcible for freeing retunrned value if it is not error. + */ +static char *compose_mount_options(const char *sb_mountdata, + const char *ref_unc, + char **devname) +{ + int rc; + char *mountdata; + int md_len; + char *tkn_e; + char *srvIP = NULL; + char sep = ','; + int off, noff; + + if (sb_mountdata == NULL) + return ERR_PTR(-EINVAL); + + *devname = cifs_get_share_name(ref_unc); + rc = dns_resolve_server_name_to_ip(*devname, &srvIP); + if (rc != 0) { + cERROR(1, ("%s: Failed to resolve server part of %s to IP", + __FUNCTION__, *devname)); + mountdata = ERR_PTR(rc); + goto compose_mount_options_out; + } + md_len = strlen(sb_mountdata) + strlen(srvIP) + strlen(ref_unc) + 3; + mountdata = kzalloc(md_len+1, GFP_KERNEL); + if (mountdata == NULL) { + mountdata = ERR_PTR(-ENOMEM); + goto compose_mount_options_out; + } + + /* copy all options except of unc,ip,prefixpath */ + off = 0; + if (strncmp(sb_mountdata, "sep=", 4) == 0) { + sep = sb_mountdata[4]; + strncpy(mountdata, sb_mountdata, 5); + off += 5; + } + while ((tkn_e = strchr(sb_mountdata+off, sep))) { + noff = (tkn_e - (sb_mountdata+off)) + 1; + if (strnicmp(sb_mountdata+off, "unc=", 4) == 0) { + off += noff; + continue; + } + if (strnicmp(sb_mountdata+off, "ip=", 3) == 0) { + off += noff; + continue; + } + if (strnicmp(sb_mountdata+off, "prefixpath=", 3) == 0) { + off += noff; + continue; + } + strncat(mountdata, sb_mountdata+off, noff); + off += noff; + } + strcat(mountdata, sb_mountdata+off); + mountdata[md_len] = '\0'; + + /* copy new IP and ref share name */ + strcat(mountdata, ",ip="); + strcat(mountdata, srvIP); + strcat(mountdata, ",unc="); + strcat(mountdata, *devname); + + /* find & copy prefixpath */ + tkn_e = strchr(ref_unc+2, '\\'); + if (tkn_e) { + tkn_e = strchr(tkn_e+1, '\\'); + if (tkn_e) { + strcat(mountdata, ",prefixpath="); + strcat(mountdata, tkn_e); + } + } + + /*cFYI(1,("%s: parent mountdata: %s", __FUNCTION__,sb_mountdata));*/ + /*cFYI(1, ("%s: submount mountdata: %s", __FUNCTION__, mountdata ));*/ + +compose_mount_options_out: + kfree(srvIP); + return mountdata; +} + + +static struct vfsmount *cifs_dfs_do_refmount(const struct vfsmount *mnt_parent, + struct dentry *dentry, char *ref_unc) +{ + struct cifs_sb_info *cifs_sb; + struct vfsmount *mnt; + char *mountdata; + char *devname = NULL; + + cifs_sb = CIFS_SB(dentry->d_inode->i_sb); + mountdata = compose_mount_options(cifs_sb->mountdata, + ref_unc, &devname); + + if (IS_ERR(mountdata)) + return (struct vfsmount *)mountdata; + + mnt = vfs_kern_mount(&cifs_fs_type, 0, devname, mountdata); + kfree(mountdata); + kfree(devname); + return mnt; + +} + +static char *build_full_dfs_path_from_dentry(struct dentry *dentry) +{ + char *full_path = NULL; + char *search_path; + char *tmp_path; + size_t l_max_len; + struct cifs_sb_info *cifs_sb; + + if (dentry->d_inode == NULL) + return NULL; + + cifs_sb = CIFS_SB(dentry->d_inode->i_sb); + + if (cifs_sb->tcon == NULL) + return NULL; + + search_path = build_path_from_dentry(dentry); + if (search_path == NULL) + return NULL; + + if (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS) { + /* we should use full path name to correct working with DFS */ + l_max_len = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE+1) + + strnlen(search_path, MAX_PATHCONF) + 1; + tmp_path = kmalloc(l_max_len, GFP_KERNEL); + if (tmp_path == NULL) { + kfree(search_path); + return NULL; + } + strncpy(tmp_path, cifs_sb->tcon->treeName, l_max_len); + strcat(tmp_path, search_path); + tmp_path[l_max_len-1] = 0; + full_path = tmp_path; + kfree(search_path); + } else { + full_path = search_path; + } + return full_path; +} + +static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd, + struct list_head *mntlist) +{ + /* stolen from afs code */ + int err; + + mntget(newmnt); + err = do_add_mount(newmnt, nd, nd->mnt->mnt_flags, mntlist); + switch (err) { + case 0: + dput(nd->dentry); + mntput(nd->mnt); + nd->mnt = newmnt; + nd->dentry = dget(newmnt->mnt_root); + break; + case -EBUSY: + /* someone else made a mount here whilst we were busy */ + while (d_mountpoint(nd->dentry) && + follow_down(&nd->mnt, &nd->dentry)) + ; + err = 0; + default: + mntput(newmnt); + break; + } + return err; +} + +static void dump_referral(const struct dfs_info3_param *ref) +{ + cFYI(1, ("DFS: ref path: %s", ref->path_name)); + cFYI(1, ("DFS: node path: %s", ref->node_name)); + cFYI(1, ("DFS: fl: %hd, srv_type: %hd", ref->flags, ref->server_type)); + cFYI(1, ("DFS: ref_flags: %hd, path_consumed: %hd", ref->ref_flag, + ref->PathConsumed)); +} + + +static void* +cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd) +{ + struct dfs_info3_param *referrals = NULL; + unsigned int num_referrals = 0; + struct cifs_sb_info *cifs_sb; + struct cifsSesInfo *ses; + char *full_path = NULL; + int xid, i; + int rc = 0; + struct vfsmount *mnt = ERR_PTR(-ENOENT); + + cFYI(1, ("in %s", __FUNCTION__)); + BUG_ON(IS_ROOT(dentry)); + + xid = GetXid(); + + dput(nd->dentry); + nd->dentry = dget(dentry); + + cifs_sb = CIFS_SB(dentry->d_inode->i_sb); + ses = cifs_sb->tcon->ses; + + if (!ses) { + rc = -EINVAL; + goto out_err; + } + + full_path = build_full_dfs_path_from_dentry(dentry); + if (full_path == NULL) { + rc = -ENOMEM; + goto out_err; + } + + rc = get_dfs_path(xid, ses , full_path, cifs_sb->local_nls, + &num_referrals, &referrals, + cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + + for (i = 0; i < num_referrals; i++) { + dump_referral(referrals+i); + /* connect to a storage node */ + if (referrals[i].flags & DFSREF_STORAGE_SERVER) { + int len; + len = strlen(referrals[i].node_name); + if (len < 2) { + cERROR(1, ("%s: Net Address path too short: %s", + __FUNCTION__, referrals[i].node_name)); + rc = -EINVAL; + goto out_err; + } + mnt = cifs_dfs_do_refmount(nd->mnt, nd->dentry, + referrals[i].node_name); + cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p", + __FUNCTION__, + referrals[i].node_name, mnt)); + + /* complete mount procedure if we accured submount */ + if (!IS_ERR(mnt)) + break; + } + } + + /* we need it cause for() above could exit without valid submount */ + rc = PTR_ERR(mnt); + if (IS_ERR(mnt)) + goto out_err; + + nd->mnt->mnt_flags |= MNT_SHRINKABLE; + rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list); + +out: + FreeXid(xid); + free_dfs_info_array(referrals, num_referrals); + kfree(full_path); + cFYI(1, ("leaving %s" , __FUNCTION__)); + return ERR_PTR(rc); +out_err: + path_release(nd); + goto out; +} + +struct inode_operations cifs_dfs_referral_inode_operations = { + .follow_link = cifs_dfs_follow_mountpoint, +}; + diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index 34af556cdd8..8ad2330ba06 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -43,6 +43,9 @@ struct cifs_sb_info { mode_t mnt_dir_mode; int mnt_cifs_flags; int prepathlen; - char *prepath; + char *prepath; /* relative path under the share to mount to */ +#ifdef CONFIG_CIFS_DFS_UPCALL + char *mountdata; /* mount options received at mount time */ +#endif }; #endif /* _CIFS_FS_SB_H */ diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c index 1529d2b12e9..d543accc10d 100644 --- a/fs/cifs/cifs_spnego.c +++ b/fs/cifs/cifs_spnego.c @@ -122,11 +122,13 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo) cFYI(1, ("key description = %s", description)); spnego_key = request_key(&cifs_spnego_key_type, description, ""); +#ifdef CONFIG_CIFS_DEBUG2 if (cifsFYI && !IS_ERR(spnego_key)) { struct cifs_spnego_msg *msg = spnego_key->payload.data; - cifs_dump_mem("SPNEGO reply blob:", msg->data, - msg->secblob_len + msg->sesskey_len); + cifs_dump_mem("SPNEGO reply blob:", msg->data, min(1024, + msg->secblob_len + msg->sesskey_len)); } +#endif /* CONFIG_CIFS_DEBUG2 */ out: kfree(description); diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index c312adcba4f..a7035bd18e4 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -129,6 +129,54 @@ int compare_sids(const struct cifs_sid *ctsid, const struct cifs_sid *cwsid) return (1); /* sids compare/match */ } + +/* copy ntsd, owner sid, and group sid from a security descriptor to another */ +static void copy_sec_desc(const struct cifs_ntsd *pntsd, + struct cifs_ntsd *pnntsd, __u32 sidsoffset) +{ + int i; + + struct cifs_sid *owner_sid_ptr, *group_sid_ptr; + struct cifs_sid *nowner_sid_ptr, *ngroup_sid_ptr; + + /* copy security descriptor control portion */ + pnntsd->revision = pntsd->revision; + pnntsd->type = pntsd->type; + pnntsd->dacloffset = cpu_to_le32(sizeof(struct cifs_ntsd)); + pnntsd->sacloffset = 0; + pnntsd->osidoffset = cpu_to_le32(sidsoffset); + pnntsd->gsidoffset = cpu_to_le32(sidsoffset + sizeof(struct cifs_sid)); + + /* copy owner sid */ + owner_sid_ptr = (struct cifs_sid *)((char *)pntsd + + le32_to_cpu(pntsd->osidoffset)); + nowner_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset); + + nowner_sid_ptr->revision = owner_sid_ptr->revision; + nowner_sid_ptr->num_subauth = owner_sid_ptr->num_subauth; + for (i = 0; i < 6; i++) + nowner_sid_ptr->authority[i] = owner_sid_ptr->authority[i]; + for (i = 0; i < 5; i++) + nowner_sid_ptr->sub_auth[i] = owner_sid_ptr->sub_auth[i]; + + /* copy group sid */ + group_sid_ptr = (struct cifs_sid *)((char *)pntsd + + le32_to_cpu(pntsd->gsidoffset)); + ngroup_sid_ptr = (struct cifs_sid *)((char *)pnntsd + sidsoffset + + sizeof(struct cifs_sid)); + + ngroup_sid_ptr->revision = group_sid_ptr->revision; + ngroup_sid_ptr->num_subauth = group_sid_ptr->num_subauth; + for (i = 0; i < 6; i++) + ngroup_sid_ptr->authority[i] = group_sid_ptr->authority[i]; + for (i = 0; i < 5; i++) + ngroup_sid_ptr->sub_auth[i] = + cpu_to_le32(group_sid_ptr->sub_auth[i]); + + return; +} + + /* change posix mode to reflect permissions pmode is the existing mode (we only want to overwrite part of this @@ -220,6 +268,33 @@ static void mode_to_access_flags(umode_t mode, umode_t bits_to_use, return; } +static __le16 fill_ace_for_sid(struct cifs_ace *pntace, + const struct cifs_sid *psid, __u64 nmode, umode_t bits) +{ + int i; + __u16 size = 0; + __u32 access_req = 0; + + pntace->type = ACCESS_ALLOWED; + pntace->flags = 0x0; + mode_to_access_flags(nmode, bits, &access_req); + if (!access_req) + access_req = SET_MINIMUM_RIGHTS; + pntace->access_req = cpu_to_le32(access_req); + + pntace->sid.revision = psid->revision; + pntace->sid.num_subauth = psid->num_subauth; + for (i = 0; i < 6; i++) + pntace->sid.authority[i] = psid->authority[i]; + for (i = 0; i < psid->num_subauth; i++) + pntace->sid.sub_auth[i] = psid->sub_auth[i]; + + size = 1 + 1 + 2 + 4 + 1 + 1 + 6 + (psid->num_subauth * 4); + pntace->size = cpu_to_le16(size); + + return (size); +} + #ifdef CONFIG_CIFS_DEBUG2 static void dump_ace(struct cifs_ace *pace, char *end_of_acl) @@ -243,7 +318,7 @@ static void dump_ace(struct cifs_ace *pace, char *end_of_acl) int i; cFYI(1, ("ACE revision %d num_auth %d type %d flags %d size %d", pace->sid.revision, pace->sid.num_subauth, pace->type, - pace->flags, pace->size)); + pace->flags, le16_to_cpu(pace->size))); for (i = 0; i < num_subauth; ++i) { cFYI(1, ("ACE sub_auth[%d]: 0x%x", i, le32_to_cpu(pace->sid.sub_auth[i]))); @@ -346,6 +421,28 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, } +static int set_chmod_dacl(struct cifs_acl *pndacl, struct cifs_sid *pownersid, + struct cifs_sid *pgrpsid, __u64 nmode) +{ + __le16 size = 0; + struct cifs_acl *pnndacl; + + pnndacl = (struct cifs_acl *)((char *)pndacl + sizeof(struct cifs_acl)); + + size += fill_ace_for_sid((struct cifs_ace *) ((char *)pnndacl + size), + pownersid, nmode, S_IRWXU); + size += fill_ace_for_sid((struct cifs_ace *)((char *)pnndacl + size), + pgrpsid, nmode, S_IRWXG); + size += fill_ace_for_sid((struct cifs_ace *)((char *)pnndacl + size), + &sid_everyone, nmode, S_IRWXO); + + pndacl->size = cpu_to_le16(size + sizeof(struct cifs_acl)); + pndacl->num_aces = 3; + + return (0); +} + + static int parse_sid(struct cifs_sid *psid, char *end_of_acl) { /* BB need to add parm so we can store the SID BB */ @@ -432,6 +529,46 @@ static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len, } +/* Convert permission bits from mode to equivalent CIFS ACL */ +static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd, + int acl_len, struct inode *inode, __u64 nmode) +{ + int rc = 0; + __u32 dacloffset; + __u32 ndacloffset; + __u32 sidsoffset; + struct cifs_sid *owner_sid_ptr, *group_sid_ptr; + struct cifs_acl *dacl_ptr = NULL; /* no need for SACL ptr */ + struct cifs_acl *ndacl_ptr = NULL; /* no need for SACL ptr */ + + if ((inode == NULL) || (pntsd == NULL) || (pnntsd == NULL)) + return (-EIO); + + owner_sid_ptr = (struct cifs_sid *)((char *)pntsd + + le32_to_cpu(pntsd->osidoffset)); + group_sid_ptr = (struct cifs_sid *)((char *)pntsd + + le32_to_cpu(pntsd->gsidoffset)); + + dacloffset = le32_to_cpu(pntsd->dacloffset); + dacl_ptr = (struct cifs_acl *)((char *)pntsd + dacloffset); + + ndacloffset = sizeof(struct cifs_ntsd); + ndacl_ptr = (struct cifs_acl *)((char *)pnntsd + ndacloffset); + ndacl_ptr->revision = dacl_ptr->revision; + ndacl_ptr->size = 0; + ndacl_ptr->num_aces = 0; + + rc = set_chmod_dacl(ndacl_ptr, owner_sid_ptr, group_sid_ptr, nmode); + + sidsoffset = ndacloffset + le16_to_cpu(ndacl_ptr->size); + + /* copy security descriptor control portion and owner and group sid */ + copy_sec_desc(pntsd, pnntsd, sidsoffset); + + return (rc); +} + + /* Retrieve an ACL from the server */ static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode, const char *path) @@ -487,6 +624,64 @@ static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode, return pntsd; } +/* Set an ACL on the server */ +static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen, + struct inode *inode, const char *path) +{ + struct cifsFileInfo *open_file; + int unlock_file = FALSE; + int xid; + int rc = -EIO; + __u16 fid; + struct super_block *sb; + struct cifs_sb_info *cifs_sb; + +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("set ACL for %s from mode 0x%x", path, inode->i_mode)); +#endif + + if (!inode) + return (rc); + + sb = inode->i_sb; + if (sb == NULL) + return (rc); + + cifs_sb = CIFS_SB(sb); + xid = GetXid(); + + open_file = find_readable_file(CIFS_I(inode)); + if (open_file) { + unlock_file = TRUE; + fid = open_file->netfid; + } else { + int oplock = FALSE; + /* open file */ + rc = CIFSSMBOpen(xid, cifs_sb->tcon, path, FILE_OPEN, + WRITE_DAC, 0, &fid, &oplock, NULL, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); + if (rc != 0) { + cERROR(1, ("Unable to open file to set ACL")); + FreeXid(xid); + return (rc); + } + } + + rc = CIFSSMBSetCIFSACL(xid, cifs_sb->tcon, fid, pnntsd, acllen); +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("SetCIFSACL rc = %d", rc)); +#endif + if (unlock_file == TRUE) + atomic_dec(&open_file->wrtPending); + else + CIFSSMBClose(xid, cifs_sb->tcon, fid); + + FreeXid(xid); + + return (rc); +} + /* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */ void acl_to_uid_mode(struct inode *inode, const char *path) { @@ -510,24 +705,53 @@ void acl_to_uid_mode(struct inode *inode, const char *path) } /* Convert mode bits to an ACL so we can update the ACL on the server */ -int mode_to_acl(struct inode *inode, const char *path) +int mode_to_acl(struct inode *inode, const char *path, __u64 nmode) { int rc = 0; __u32 acllen = 0; - struct cifs_ntsd *pntsd = NULL; + struct cifs_ntsd *pntsd = NULL; /* acl obtained from server */ + struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */ +#ifdef CONFIG_CIFS_DEBUG2 cFYI(1, ("set ACL from mode for %s", path)); +#endif /* Get the security descriptor */ pntsd = get_cifs_acl(&acllen, inode, path); - /* Add/Modify the three ACEs for owner, group, everyone - while retaining the other ACEs */ + /* Add three ACEs for owner, group, everyone getting rid of + other ACEs as chmod disables ACEs and set the security descriptor */ - /* Set the security descriptor */ + if (pntsd) { + /* allocate memory for the smb header, + set security descriptor request security descriptor + parameters, and secuirty descriptor itself */ + pnntsd = kmalloc(acllen, GFP_KERNEL); + if (!pnntsd) { + cERROR(1, ("Unable to allocate security descriptor")); + kfree(pntsd); + return (-ENOMEM); + } - kfree(pntsd); - return rc; + rc = build_sec_desc(pntsd, pnntsd, acllen, inode, nmode); + +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("build_sec_desc rc: %d", rc)); +#endif + + if (!rc) { + /* Set the security descriptor */ + rc = set_cifs_acl(pnntsd, acllen, inode, path); +#ifdef CONFIG_CIFS_DEBUG2 + cFYI(1, ("set_cifs_acl rc: %d", rc)); +#endif + } + + kfree(pnntsd); + kfree(pntsd); + } + + return (rc); } #endif /* CONFIG_CIFS_EXPERIMENTAL */ diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 093beaa3900..e9f4ec70109 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -44,6 +44,7 @@ #include "cifs_fs_sb.h" #include <linux/mm.h> #include <linux/key-type.h> +#include "dns_resolve.h" #include "cifs_spnego.h" #define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */ @@ -96,6 +97,9 @@ cifs_read_super(struct super_block *sb, void *data, { struct inode *inode; struct cifs_sb_info *cifs_sb; +#ifdef CONFIG_CIFS_DFS_UPCALL + int len; +#endif int rc = 0; /* BB should we make this contingent on mount parm? */ @@ -105,6 +109,25 @@ cifs_read_super(struct super_block *sb, void *data, if (cifs_sb == NULL) return -ENOMEM; +#ifdef CONFIG_CIFS_DFS_UPCALL + /* copy mount params to sb for use in submounts */ + /* BB: should we move this after the mount so we + * do not have to do the copy on failed mounts? + * BB: May be it is better to do simple copy before + * complex operation (mount), and in case of fail + * just exit instead of doing mount and attempting + * undo it if this copy fails?*/ + len = strlen(data); + cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL); + if (cifs_sb->mountdata == NULL) { + kfree(sb->s_fs_info); + sb->s_fs_info = NULL; + return -ENOMEM; + } + strncpy(cifs_sb->mountdata, data, len + 1); + cifs_sb->mountdata[len] = '\0'; +#endif + rc = cifs_mount(sb, cifs_sb, data, devname); if (rc) { @@ -154,6 +177,12 @@ out_no_root: out_mount_failed: if (cifs_sb) { +#ifdef CONFIG_CIFS_DFS_UPCALL + if (cifs_sb->mountdata) { + kfree(cifs_sb->mountdata); + cifs_sb->mountdata = NULL; + } +#endif if (cifs_sb->local_nls) unload_nls(cifs_sb->local_nls); kfree(cifs_sb); @@ -177,6 +206,13 @@ cifs_put_super(struct super_block *sb) if (rc) { cERROR(1, ("cifs_umount failed with return code %d", rc)); } +#ifdef CONFIG_CIFS_DFS_UPCALL + if (cifs_sb->mountdata) { + kfree(cifs_sb->mountdata); + cifs_sb->mountdata = NULL; + } +#endif + unload_nls(cifs_sb->local_nls); kfree(cifs_sb); return; @@ -435,6 +471,10 @@ static void cifs_umount_begin(struct vfsmount *vfsmnt, int flags) struct cifs_sb_info *cifs_sb; struct cifsTconInfo *tcon; +#ifdef CONFIG_CIFS_DFS_UPCALL + dfs_shrink_umount_helper(vfsmnt); +#endif /* CONFIG CIFS_DFS_UPCALL */ + if (!(flags & MNT_FORCE)) return; cifs_sb = CIFS_SB(vfsmnt->mnt_sb); @@ -552,7 +592,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin) return remote_llseek(file, offset, origin); } -static struct file_system_type cifs_fs_type = { +struct file_system_type cifs_fs_type = { .owner = THIS_MODULE, .name = "cifs", .get_sb = cifs_get_sb, @@ -1015,11 +1055,16 @@ init_cifs(void) if (rc) goto out_unregister_filesystem; #endif +#ifdef CONFIG_CIFS_DFS_UPCALL + rc = register_key_type(&key_type_dns_resolver); + if (rc) + goto out_unregister_key_type; +#endif oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd"); if (IS_ERR(oplockThread)) { rc = PTR_ERR(oplockThread); cERROR(1, ("error %d create oplock thread", rc)); - goto out_unregister_key_type; + goto out_unregister_dfs_key_type; } dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd"); @@ -1033,7 +1078,11 @@ init_cifs(void) out_stop_oplock_thread: kthread_stop(oplockThread); + out_unregister_dfs_key_type: +#ifdef CONFIG_CIFS_DFS_UPCALL + unregister_key_type(&key_type_dns_resolver); out_unregister_key_type: +#endif #ifdef CONFIG_CIFS_UPCALL unregister_key_type(&cifs_spnego_key_type); out_unregister_filesystem: @@ -1059,6 +1108,9 @@ exit_cifs(void) #ifdef CONFIG_PROC_FS cifs_proc_clean(); #endif +#ifdef CONFIG_CIFS_DFS_UPCALL + unregister_key_type(&key_type_dns_resolver); +#endif #ifdef CONFIG_CIFS_UPCALL unregister_key_type(&cifs_spnego_key_type); #endif diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 2a21dc66f0d..195b14de556 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -32,6 +32,7 @@ #define TRUE 1 #endif +extern struct file_system_type cifs_fs_type; extern const struct address_space_operations cifs_addr_ops; extern const struct address_space_operations cifs_addr_ops_smallbuf; @@ -60,6 +61,10 @@ extern int cifs_setattr(struct dentry *, struct iattr *); extern const struct inode_operations cifs_file_inode_ops; extern const struct inode_operations cifs_symlink_inode_ops; +extern struct list_head cifs_dfs_automount_list; +extern struct inode_operations cifs_dfs_referral_inode_operations; + + /* Functions related to files and directories */ extern const struct file_operations cifs_file_ops; diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 1fde2197ad7..5d32d8ddc82 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -1,7 +1,7 @@ /* * fs/cifs/cifsglob.h * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * Jeremy Allison (jra@samba.org) * @@ -70,14 +70,6 @@ #endif /* - * This information is kept on every Server we know about. - * - * Some things to note: - * - */ -#define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) - -/* * CIFS vfs client Status information (based on what we know.) */ @@ -460,6 +452,37 @@ struct dir_notify_req { struct file *pfile; }; +struct dfs_info3_param { + int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ + int PathConsumed; + int server_type; + int ref_flag; + char *path_name; + char *node_name; +}; + +static inline void free_dfs_info_param(struct dfs_info3_param *param) +{ + if (param) { + kfree(param->path_name); + kfree(param->node_name); + kfree(param); + } +} + +static inline void free_dfs_info_array(struct dfs_info3_param *param, + int number_of_items) +{ + int i; + if ((number_of_items == 0) || (param == NULL)) + return; + for (i = 0; i < number_of_items; i++) { + kfree(param[i].path_name); + kfree(param[i].node_name); + } + kfree(param); +} + #define MID_FREE 0 #define MID_REQUEST_ALLOCATED 1 #define MID_REQUEST_SUBMITTED 2 diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index dbe6b846f37..47f79504f57 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -237,6 +237,9 @@ | DELETE | READ_CONTROL | WRITE_DAC \ | WRITE_OWNER | SYNCHRONIZE) +#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \ + | READ_CONTROL | SYNCHRONIZE) + /* * Invalid readdir handle diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 8350eec4966..2f09f565a3d 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -1,7 +1,7 @@ /* * fs/cifs/cifsproto.h * - * Copyright (c) International Business Machines Corp., 2002,2007 + * Copyright (c) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -97,11 +97,14 @@ extern int cifs_get_inode_info_unix(struct inode **pinode, const unsigned char *search_path, struct super_block *sb, int xid); extern void acl_to_uid_mode(struct inode *inode, const char *search_path); -extern int mode_to_acl(struct inode *inode, const char *path); +extern int mode_to_acl(struct inode *inode, const char *path, __u64); extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *, const char *); extern int cifs_umount(struct super_block *, struct cifs_sb_info *); +#ifdef CONFIG_CIFS_DFS_UPCALL +extern void dfs_shrink_umount_helper(struct vfsmount *vfsmnt); +#endif void cifs_proc_init(void); void cifs_proc_clean(void); @@ -153,7 +156,7 @@ extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, const struct nls_table *nls_codepage, unsigned int *pnum_referrals, - unsigned char **preferrals, + struct dfs_info3_param **preferrals, int remap); extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon, struct super_block *sb, struct smb_vol *vol); @@ -342,6 +345,8 @@ extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const struct nls_table *nls_codepage, int remap_special_chars); extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen); +extern int CIFSSMBSetCIFSACL(const int, struct cifsTconInfo *, __u16, + struct cifs_ntsd *, __u32); extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, const unsigned char *searchName, char *acl_inf, const int buflen, const int acl_type, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 9e8a6bef029..9409524e4bf 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -3156,6 +3156,71 @@ qsec_out: /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ return rc; } + +int +CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, + struct cifs_ntsd *pntsd, __u32 acllen) +{ + __u16 byte_count, param_count, data_count, param_offset, data_offset; + int rc = 0; + int bytes_returned = 0; + SET_SEC_DESC_REQ *pSMB = NULL; + NTRANSACT_RSP *pSMBr = NULL; + +setCifsAclRetry: + rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return (rc); + + pSMB->MaxSetupCount = 0; + pSMB->Reserved = 0; + + param_count = 8; + param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; + data_count = acllen; + data_offset = param_offset + param_count; + byte_count = 3 /* pad */ + param_count; + + pSMB->DataCount = cpu_to_le32(data_count); + pSMB->TotalDataCount = pSMB->DataCount; + pSMB->MaxParameterCount = cpu_to_le32(4); + pSMB->MaxDataCount = cpu_to_le32(16384); + pSMB->ParameterCount = cpu_to_le32(param_count); + pSMB->ParameterOffset = cpu_to_le32(param_offset); + pSMB->TotalParameterCount = pSMB->ParameterCount; + pSMB->DataOffset = cpu_to_le32(data_offset); + pSMB->SetupCount = 0; + pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); + pSMB->ByteCount = cpu_to_le16(byte_count+data_count); + + pSMB->Fid = fid; /* file handle always le */ + pSMB->Reserved2 = 0; + pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); + + if (pntsd && acllen) { + memcpy((char *) &pSMBr->hdr.Protocol + data_offset, + (char *) pntsd, + acllen); + pSMB->hdr.smb_buf_length += (byte_count + data_count); + + } else + pSMB->hdr.smb_buf_length += byte_count; + + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + + cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc)); + if (rc) + cFYI(1, ("Set CIFS ACL returned %d", rc)); + cifs_buf_release(pSMB); + + if (rc == -EAGAIN) + goto setCifsAclRetry; + + return (rc); +} + #endif /* CONFIG_CIFS_EXPERIMENTAL */ /* Legacy Query Path Information call for lookup to old servers such @@ -5499,7 +5564,7 @@ SetEARetry: else name_len = strnlen(ea_name, 255); - count = sizeof(*parm_data) + ea_value_len + name_len + 1; + count = sizeof(*parm_data) + ea_value_len + name_len; pSMB->MaxParameterCount = cpu_to_le16(2); pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB size from sess */ pSMB->MaxSetupCount = 0; diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index fd9147cdb5a..65d0ba72e78 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1,7 +1,7 @@ /* * fs/cifs/connect.c * - * Copyright (C) International Business Machines Corp., 2002,2007 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -1410,7 +1410,7 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, const struct nls_table *nls_codepage, int remap) { - unsigned char *referrals = NULL; + struct dfs_info3_param *referrals = NULL; unsigned int num_referrals; int rc = 0; @@ -1429,12 +1429,14 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo, int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, const struct nls_table *nls_codepage, unsigned int *pnum_referrals, - unsigned char **preferrals, int remap) + struct dfs_info3_param **preferrals, int remap) { char *temp_unc; int rc = 0; + unsigned char *targetUNCs; *pnum_referrals = 0; + *preferrals = NULL; if (pSesInfo->ipc_tid == 0) { temp_unc = kmalloc(2 /* for slashes */ + @@ -1454,8 +1456,10 @@ get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path, kfree(temp_unc); } if (rc == 0) - rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, preferrals, + rc = CIFSGetDFSRefer(xid, pSesInfo, old_path, &targetUNCs, pnum_referrals, nls_codepage, remap); + /* BB map targetUNCs to dfs_info3 structures, here or + in CIFSGetDFSRefer BB */ return rc; } @@ -1964,7 +1968,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if (existingCifsSes) { pSesInfo = existingCifsSes; - cFYI(1, ("Existing smb sess found")); + cFYI(1, ("Existing smb sess found (status=%d)", + pSesInfo->status)); + down(&pSesInfo->sesSem); + if (pSesInfo->status == CifsNeedReconnect) { + cFYI(1, ("Session needs reconnect")); + rc = cifs_setup_session(xid, pSesInfo, + cifs_sb->local_nls); + } + up(&pSesInfo->sesSem); } else if (!rc) { cFYI(1, ("Existing smb sess not found")); pSesInfo = sesInfoAlloc(); @@ -3514,7 +3526,7 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) sesInfoFree(ses); FreeXid(xid); - return rc; /* BB check if we should always return zero here */ + return rc; } int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo, diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 37dc97af148..699ec119840 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -517,12 +517,10 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, d_add(direntry, NULL); /* if it was once a directory (but how can we tell?) we could do shrink_dcache_parent(direntry); */ - } else { - cERROR(1, ("Error 0x%x on cifs_get_inode_info in lookup of %s", - rc, full_path)); - /* BB special case check for Access Denied - watch security - exposure of returning dir info implicitly via different rc - if file exists or not but no access BB */ + } else if (rc != -EACCES) { + cERROR(1, ("Unexpected lookup error %d", rc)); + /* We special case check for Access Denied - since that + is a common return code */ } kfree(full_path); diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c new file mode 100644 index 00000000000..ef7f4382434 --- /dev/null +++ b/fs/cifs/dns_resolve.c @@ -0,0 +1,124 @@ +/* + * fs/cifs/dns_resolve.c + * + * Copyright (c) 2007 Igor Mammedov + * Author(s): Igor Mammedov (niallain@gmail.com) + * Steve French (sfrench@us.ibm.com) + * + * Contains the CIFS DFS upcall routines used for hostname to + * IP address translation. + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <keys/user-type.h> +#include "dns_resolve.h" +#include "cifsglob.h" +#include "cifsproto.h" +#include "cifs_debug.h" + +static int dns_resolver_instantiate(struct key *key, const void *data, + size_t datalen) +{ + int rc = 0; + char *ip; + + ip = kmalloc(datalen+1, GFP_KERNEL); + if (!ip) + return -ENOMEM; + + memcpy(ip, data, datalen); + ip[datalen] = '\0'; + + rcu_assign_pointer(key->payload.data, ip); + + return rc; +} + +struct key_type key_type_dns_resolver = { + .name = "dns_resolver", + .def_datalen = sizeof(struct in_addr), + .describe = user_describe, + .instantiate = dns_resolver_instantiate, + .match = user_match, +}; + + +/* Resolves server name to ip address. + * input: + * unc - server UNC + * output: + * *ip_addr - pointer to server ip, caller responcible for freeing it. + * return 0 on success + */ +int +dns_resolve_server_name_to_ip(const char *unc, char **ip_addr) +{ + int rc = -EAGAIN; + struct key *rkey; + char *name; + int len; + + if (!ip_addr || !unc) + return -EINVAL; + + /* search for server name delimiter */ + len = strlen(unc); + if (len < 3) { + cFYI(1, ("%s: unc is too short: %s", __FUNCTION__, unc)); + return -EINVAL; + } + len -= 2; + name = memchr(unc+2, '\\', len); + if (!name) { + cFYI(1, ("%s: probably server name is whole unc: %s", + __FUNCTION__, unc)); + } else { + len = (name - unc) - 2/* leading // */; + } + + name = kmalloc(len+1, GFP_KERNEL); + if (!name) { + rc = -ENOMEM; + return rc; + } + memcpy(name, unc+2, len); + name[len] = 0; + + rkey = request_key(&key_type_dns_resolver, name, ""); + if (!IS_ERR(rkey)) { + len = strlen(rkey->payload.data); + *ip_addr = kmalloc(len+1, GFP_KERNEL); + if (*ip_addr) { + memcpy(*ip_addr, rkey->payload.data, len); + (*ip_addr)[len] = '\0'; + cFYI(1, ("%s: resolved: %s to %s", __FUNCTION__, + rkey->description, + *ip_addr + )); + rc = 0; + } else { + rc = -ENOMEM; + } + key_put(rkey); + } else { + cERROR(1, ("%s: unable to resolve: %s", __FUNCTION__, name)); + } + + kfree(name); + return rc; +} + + diff --git a/fs/cifs/dns_resolve.h b/fs/cifs/dns_resolve.h new file mode 100644 index 00000000000..073fdc3db41 --- /dev/null +++ b/fs/cifs/dns_resolve.h @@ -0,0 +1,32 @@ +/* + * fs/cifs/dns_resolve.h -- DNS Resolver upcall management for CIFS DFS + * Handles host name to IP address resolution + * + * Copyright (c) International Business Machines Corp., 2008 + * Author(s): Steve French (sfrench@us.ibm.com) + * + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _DNS_RESOLVE_H +#define _DNS_RESOLVE_H + +#ifdef __KERNEL__ +#include <linux/key-type.h> +extern struct key_type key_type_dns_resolver; +extern int dns_resolve_server_name_to_ip(const char *unc, char **ip_addr); +#endif /* KERNEL */ + +#endif /* _DNS_RESOLVE_H */ diff --git a/fs/cifs/file.c b/fs/cifs/file.c index dd26e2759b1..5f7c374ae89 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1179,12 +1179,10 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to) atomic_dec(&open_file->wrtPending); /* Does mm or vfs already set times? */ inode->i_atime = inode->i_mtime = current_fs_time(inode->i_sb); - if ((bytes_written > 0) && (offset)) { + if ((bytes_written > 0) && (offset)) rc = 0; - } else if (bytes_written < 0) { - if (rc != -EBADF) - rc = bytes_written; - } + else if (bytes_written < 0) + rc = bytes_written; } else { cFYI(1, ("No writeable filehandles for inode")); rc = -EIO; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index e915eb1d2e6..d9567ba2960 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -54,9 +54,9 @@ int cifs_get_inode_info_unix(struct inode **pinode, MAX_TREE_SIZE + 1) + strnlen(search_path, MAX_PATHCONF) + 1, GFP_KERNEL); - if (tmp_path == NULL) { + if (tmp_path == NULL) return -ENOMEM; - } + /* have to skip first of the double backslash of UNC name */ strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE); @@ -511,7 +511,8 @@ int cifs_get_inode_info(struct inode **pinode, } spin_lock(&inode->i_lock); - if (is_size_safe_to_change(cifsInfo, le64_to_cpu(pfindData->EndOfFile))) { + if (is_size_safe_to_change(cifsInfo, + le64_to_cpu(pfindData->EndOfFile))) { /* can not safely shrink the file size here if the client is writing to it due to potential races */ i_size_write(inode, le64_to_cpu(pfindData->EndOfFile)); @@ -931,7 +932,7 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, int mode) (CIFS_UNIX_POSIX_PATH_OPS_CAP & le64_to_cpu(pTcon->fsUnixInfo.Capability))) { u32 oplock = 0; - FILE_UNIX_BASIC_INFO * pInfo = + FILE_UNIX_BASIC_INFO *pInfo = kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL); if (pInfo == NULL) { rc = -ENOMEM; @@ -1607,7 +1608,14 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) CIFS_MOUNT_MAP_SPECIAL_CHR); else if (attrs->ia_valid & ATTR_MODE) { rc = 0; - if ((mode & S_IWUGO) == 0) /* not writeable */ { +#ifdef CONFIG_CIFS_EXPERIMENTAL + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) + rc = mode_to_acl(direntry->d_inode, full_path, mode); + else if ((mode & S_IWUGO) == 0) { +#else + if ((mode & S_IWUGO) == 0) { +#endif + /* not writeable */ if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) { set_dosattr = TRUE; time_buf.Attributes = @@ -1626,10 +1634,10 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) if (time_buf.Attributes == 0) time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL); } - /* BB to be implemented - - via Windows security descriptors or streams */ - /* CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, uid, gid, - cifs_sb->local_nls); */ +#ifdef CONFIG_CIFS_EXPERIMENTAL + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) + mode_to_acl(direntry->d_inode, full_path, mode); +#endif } if (attrs->ia_valid & ATTR_ATIME) { diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 11f265726db..1d6fb01b8e6 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -1,7 +1,7 @@ /* * fs/cifs/link.c * - * Copyright (C) International Business Machines Corp., 2002,2003 + * Copyright (C) International Business Machines Corp., 2002,2008 * Author(s): Steve French (sfrench@us.ibm.com) * * This library is free software; you can redistribute it and/or modify @@ -236,8 +236,6 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) char *full_path = NULL; char *tmp_path = NULL; char *tmpbuffer; - unsigned char *referrals = NULL; - unsigned int num_referrals = 0; int len; __u16 fid; @@ -297,8 +295,11 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) cFYI(1, ("Error closing junction point " "(open for ioctl)")); } + /* BB unwind this long, nested function, or remove BB */ if (rc == -EIO) { /* Query if DFS Junction */ + unsigned int num_referrals = 0; + struct dfs_info3_param *refs = NULL; tmp_path = kmalloc(MAX_TREE_SIZE + MAX_PATHCONF + 1, GFP_KERNEL); @@ -310,7 +311,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) rc = get_dfs_path(xid, pTcon->ses, tmp_path, cifs_sb->local_nls, - &num_referrals, &referrals, + &num_referrals, &refs, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); cFYI(1, ("Get DFS for %s rc = %d ", @@ -320,14 +321,13 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) else { cFYI(1, ("num referral: %d", num_referrals)); - if (referrals) { - cFYI(1,("referral string: %s", referrals)); + if (refs && refs->path_name) { strncpy(tmpbuffer, - referrals, + refs->path_name, len-1); } } - kfree(referrals); + kfree(refs); kfree(tmp_path); } /* BB add code like else decode referrals diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index d0cb469daab..d2153abcba6 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -528,9 +528,11 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, rc = -EOVERFLOW; goto ssetup_exit; } - ses->server->mac_signing_key.len = msg->sesskey_len; - memcpy(ses->server->mac_signing_key.data.krb5, msg->data, - msg->sesskey_len); + if (first_time) { + ses->server->mac_signing_key.len = msg->sesskey_len; + memcpy(ses->server->mac_signing_key.data.krb5, + msg->data, msg->sesskey_len); + } pSMB->req.hdr.Flags2 |= SMBFLG2_EXT_SEC; capabilities |= CAP_EXTENDED_SECURITY; pSMB->req.Capabilities = cpu_to_le32(capabilities); @@ -540,7 +542,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time, if (ses->capabilities & CAP_UNICODE) { /* unicode strings must be word aligned */ - if (iov[0].iov_len % 2) { + if ((iov[0].iov_len + iov[1].iov_len) % 2) { *bcc_ptr = 0; bcc_ptr++; } diff --git a/include/asm-arm/arch-at91/at91_lcdc.h b/include/asm-arm/arch-at91/at91_lcdc.h deleted file mode 100644 index ab040a40d37..00000000000 --- a/include/asm-arm/arch-at91/at91_lcdc.h +++ /dev/null @@ -1,148 +0,0 @@ -/* - * include/asm-arm/arch-at91/at91_lcdc.h - * - * LCD Controller (LCDC). - * Based on AT91SAM9261 datasheet revision E. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef AT91_LCDC_H -#define AT91_LCDC_H - -#define AT91_LCDC_DMABADDR1 0x00 /* DMA Base Address Register 1 */ -#define AT91_LCDC_DMABADDR2 0x04 /* DMA Base Address Register 2 */ -#define AT91_LCDC_DMAFRMPT1 0x08 /* DMA Frame Pointer Register 1 */ -#define AT91_LCDC_DMAFRMPT2 0x0c /* DMA Frame Pointer Register 2 */ -#define AT91_LCDC_DMAFRMADD1 0x10 /* DMA Frame Address Register 1 */ -#define AT91_LCDC_DMAFRMADD2 0x14 /* DMA Frame Address Register 2 */ - -#define AT91_LCDC_DMAFRMCFG 0x18 /* DMA Frame Configuration Register */ -#define AT91_LCDC_FRSIZE (0x7fffff << 0) /* Frame Size */ -#define AT91_LCDC_BLENGTH (0x7f << 24) /* Burst Length */ - -#define AT91_LCDC_DMACON 0x1c /* DMA Control Register */ -#define AT91_LCDC_DMAEN (0x1 << 0) /* DMA Enable */ -#define AT91_LCDC_DMARST (0x1 << 1) /* DMA Reset */ -#define AT91_LCDC_DMABUSY (0x1 << 2) /* DMA Busy */ - -#define AT91_LCDC_LCDCON1 0x0800 /* LCD Control Register 1 */ -#define AT91_LCDC_BYPASS (1 << 0) /* Bypass lcd_dotck divider */ -#define AT91_LCDC_CLKVAL (0x1ff << 12) /* Clock Divider */ -#define AT91_LCDC_LINCNT (0x7ff << 21) /* Line Counter */ - -#define AT91_LCDC_LCDCON2 0x0804 /* LCD Control Register 2 */ -#define AT91_LCDC_DISTYPE (3 << 0) /* Display Type */ -#define AT91_LCDC_DISTYPE_STNMONO (0 << 0) -#define AT91_LCDC_DISTYPE_STNCOLOR (1 << 0) -#define AT91_LCDC_DISTYPE_TFT (2 << 0) -#define AT91_LCDC_SCANMOD (1 << 2) /* Scan Mode */ -#define AT91_LCDC_SCANMOD_SINGLE (0 << 2) -#define AT91_LCDC_SCANMOD_DUAL (1 << 2) -#define AT91_LCDC_IFWIDTH (3 << 3) /*Interface Width */ -#define AT91_LCDC_IFWIDTH_4 (0 << 3) -#define AT91_LCDC_IFWIDTH_8 (1 << 3) -#define AT91_LCDC_IFWIDTH_16 (2 << 3) -#define AT91_LCDC_PIXELSIZE (7 << 5) /* Bits per pixel */ -#define AT91_LCDC_PIXELSIZE_1 (0 << 5) -#define AT91_LCDC_PIXELSIZE_2 (1 << 5) -#define AT91_LCDC_PIXELSIZE_4 (2 << 5) -#define AT91_LCDC_PIXELSIZE_8 (3 << 5) -#define AT91_LCDC_PIXELSIZE_16 (4 << 5) -#define AT91_LCDC_PIXELSIZE_24 (5 << 5) -#define AT91_LCDC_INVVD (1 << 8) /* LCD Data polarity */ -#define AT91_LCDC_INVVD_NORMAL (0 << 8) -#define AT91_LCDC_INVVD_INVERTED (1 << 8) -#define AT91_LCDC_INVFRAME (1 << 9 ) /* LCD VSync polarity */ -#define AT91_LCDC_INVFRAME_NORMAL (0 << 9) -#define AT91_LCDC_INVFRAME_INVERTED (1 << 9) -#define AT91_LCDC_INVLINE (1 << 10) /* LCD HSync polarity */ -#define AT91_LCDC_INVLINE_NORMAL (0 << 10) -#define AT91_LCDC_INVLINE_INVERTED (1 << 10) -#define AT91_LCDC_INVCLK (1 << 11) /* LCD dotclk polarity */ -#define AT91_LCDC_INVCLK_NORMAL (0 << 11) -#define AT91_LCDC_INVCLK_INVERTED (1 << 11) -#define AT91_LCDC_INVDVAL (1 << 12) /* LCD dval polarity */ -#define AT91_LCDC_INVDVAL_NORMAL (0 << 12) -#define AT91_LCDC_INVDVAL_INVERTED (1 << 12) -#define AT91_LCDC_CLKMOD (1 << 15) /* LCD dotclk mode */ -#define AT91_LCDC_CLKMOD_ACTIVEDISPLAY (0 << 15) -#define AT91_LCDC_CLKMOD_ALWAYSACTIVE (1 << 15) -#define AT91_LCDC_MEMOR (1 << 31) /* Memory Ordering Format */ -#define AT91_LCDC_MEMOR_BIG (0 << 31) -#define AT91_LCDC_MEMOR_LITTLE (1 << 31) - -#define AT91_LCDC_TIM1 0x0808 /* LCD Timing Register 1 */ -#define AT91_LCDC_VFP (0xff << 0) /* Vertical Front Porch */ -#define AT91_LCDC_VBP (0xff << 8) /* Vertical Back Porch */ -#define AT91_LCDC_VPW (0x3f << 16) /* Vertical Synchronization Pulse Width */ -#define AT91_LCDC_VHDLY (0xf << 24) /* Vertical to Horizontal Delay */ - -#define AT91_LCDC_TIM2 0x080c /* LCD Timing Register 2 */ -#define AT91_LCDC_HBP (0xff << 0) /* Horizontal Back Porch */ -#define AT91_LCDC_HPW (0x3f << 8) /* Horizontal Synchronization Pulse Width */ -#define AT91_LCDC_HFP (0x7ff << 21) /* Horizontal Front Porch */ - -#define AT91_LCDC_LCDFRMCFG 0x0810 /* LCD Frame Configuration Register */ -#define AT91_LCDC_LINEVAL (0x7ff << 0) /* Vertical Size of LCD Module */ -#define AT91_LCDC_HOZVAL (0x7ff << 21) /* Horizontal Size of LCD Module */ - -#define AT91_LCDC_FIFO 0x0814 /* LCD FIFO Register */ -#define AT91_LCDC_FIFOTH (0xffff) /* FIFO Threshold */ - -#define AT91_LCDC_DP1_2 0x081c /* Dithering Pattern DP1_2 Register */ -#define AT91_LCDC_DP4_7 0x0820 /* Dithering Pattern DP4_7 Register */ -#define AT91_LCDC_DP3_5 0x0824 /* Dithering Pattern DP3_5 Register */ -#define AT91_LCDC_DP2_3 0x0828 /* Dithering Pattern DP2_3 Register */ -#define AT91_LCDC_DP5_7 0x082c /* Dithering Pattern DP5_7 Register */ -#define AT91_LCDC_DP3_4 0x0830 /* Dithering Pattern DP3_4 Register */ -#define AT91_LCDC_DP4_5 0x0834 /* Dithering Pattern DP4_5 Register */ -#define AT91_LCDC_DP6_7 0x0838 /* Dithering Pattern DP6_7 Register */ -#define AT91_LCDC_DP1_2_VAL (0xff) -#define AT91_LCDC_DP4_7_VAL (0xfffffff) -#define AT91_LCDC_DP3_5_VAL (0xfffff) -#define AT91_LCDC_DP2_3_VAL (0xfff) -#define AT91_LCDC_DP5_7_VAL (0xfffffff) -#define AT91_LCDC_DP3_4_VAL (0xffff) -#define AT91_LCDC_DP4_5_VAL (0xfffff) -#define AT91_LCDC_DP6_7_VAL (0xfffffff) - -#define AT91_LCDC_PWRCON 0x083c /* Power Control Register */ -#define AT91_LCDC_PWR (1 << 0) /* LCD Module Power Control */ -#define AT91_LCDC_GUARDT (0x7f << 1) /* Delay in Frame Period */ -#define AT91_LCDC_BUSY (1 << 31) /* LCD Busy */ - -#define AT91_LCDC_CONTRAST_CTR 0x0840 /* Contrast Control Register */ -#define AT91_LCDC_PS (3 << 0) /* Contrast Counter Prescaler */ -#define AT91_LCDC_PS_DIV1 (0 << 0) -#define AT91_LCDC_PS_DIV2 (1 << 0) -#define AT91_LCDC_PS_DIV4 (2 << 0) -#define AT91_LCDC_PS_DIV8 (3 << 0) -#define AT91_LCDC_POL (1 << 2) /* Polarity of output Pulse */ -#define AT91_LCDC_POL_NEGATIVE (0 << 2) -#define AT91_LCDC_POL_POSITIVE (1 << 2) -#define AT91_LCDC_ENA (1 << 3) /* PWM generator Control */ -#define AT91_LCDC_ENA_PWMDISABLE (0 << 3) -#define AT91_LCDC_ENA_PWMENABLE (1 << 3) - -#define AT91_LCDC_CONTRAST_VAL 0x0844 /* Contrast Value Register */ -#define AT91_LCDC_CVAL (0xff) /* PWM compare value */ - -#define AT91_LCDC_IER 0x0848 /* Interrupt Enable Register */ -#define AT91_LCDC_IDR 0x084c /* Interrupt Disable Register */ -#define AT91_LCDC_IMR 0x0850 /* Interrupt Mask Register */ -#define AT91_LCDC_ISR 0x0854 /* Interrupt Enable Register */ -#define AT91_LCDC_ICR 0x0858 /* Interrupt Clear Register */ -#define AT91_LCDC_LNI (1 << 0) /* Line Interrupt */ -#define AT91_LCDC_LSTLNI (1 << 1) /* Last Line Interrupt */ -#define AT91_LCDC_EOFI (1 << 2) /* DMA End Of Frame Interrupt */ -#define AT91_LCDC_UFLWI (1 << 4) /* FIFO Underflow Interrupt */ -#define AT91_LCDC_OWRI (1 << 5) /* FIFO Overwrite Interrupt */ -#define AT91_LCDC_MERI (1 << 6) /* DMA Memory Error Interrupt */ - -#define AT91_LCDC_LUT_(n) (0x0c00 + ((n)*4)) /* Palette Entry 0..255 */ - -#endif diff --git a/include/asm-arm/arch-at91/at91_pmc.h b/include/asm-arm/arch-at91/at91_pmc.h index 33ff5b6798e..52cd8e5dabc 100644 --- a/include/asm-arm/arch-at91/at91_pmc.h +++ b/include/asm-arm/arch-at91/at91_pmc.h @@ -25,6 +25,7 @@ #define AT91RM9200_PMC_MCKUDP (1 << 2) /* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */ #define AT91RM9200_PMC_UHP (1 << 4) /* USB Host Port Clock [AT91RM9200 only] */ #define AT91SAM926x_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91SAM926x only] */ +#define AT91CAP9_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91CAP9 only] */ #define AT91SAM926x_PMC_UDP (1 << 7) /* USB Devcice Port Clock [AT91SAM926x only] */ #define AT91_PMC_PCK0 (1 << 8) /* Programmable Clock 0 */ #define AT91_PMC_PCK1 (1 << 9) /* Programmable Clock 1 */ @@ -37,7 +38,9 @@ #define AT91_PMC_PCDR (AT91_PMC + 0x14) /* Peripheral Clock Disable Register */ #define AT91_PMC_PCSR (AT91_PMC + 0x18) /* Peripheral Clock Status Register */ -#define AT91_CKGR_MOR (AT91_PMC + 0x20) /* Main Oscillator Register */ +#define AT91_CKGR_UCKR (AT91_PMC + 0x1C) /* UTMI Clock Register [SAM9RL, CAP9] */ + +#define AT91_CKGR_MOR (AT91_PMC + 0x20) /* Main Oscillator Register [not on SAM9RL] */ #define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */ #define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass [AT91SAM926x only] */ #define AT91_PMC_OSCOUNT (0xff << 8) /* Main Oscillator Start-up Time */ @@ -52,6 +55,10 @@ #define AT91_PMC_PLLCOUNT (0x3f << 8) /* PLL Counter */ #define AT91_PMC_OUT (3 << 14) /* PLL Clock Frequency Range */ #define AT91_PMC_MUL (0x7ff << 16) /* PLL Multiplier */ +#define AT91_PMC_USBDIV (3 << 28) /* USB Divisor (PLLB only) */ +#define AT91_PMC_USBDIV_1 (0 << 28) +#define AT91_PMC_USBDIV_2 (1 << 28) +#define AT91_PMC_USBDIV_4 (2 << 28) #define AT91_PMC_USB96M (1 << 28) /* Divider by 2 Enable (PLLB only) */ #define AT91_PMC_MCKR (AT91_PMC + 0x30) /* Master Clock Register */ diff --git a/include/asm-arm/arch-at91/at91_rtt.h b/include/asm-arm/arch-at91/at91_rtt.h index bae1103fbbb..39a32633b27 100644 --- a/include/asm-arm/arch-at91/at91_rtt.h +++ b/include/asm-arm/arch-at91/at91_rtt.h @@ -13,19 +13,19 @@ #ifndef AT91_RTT_H #define AT91_RTT_H -#define AT91_RTT_MR (AT91_RTT + 0x00) /* Real-time Mode Register */ +#define AT91_RTT_MR 0x00 /* Real-time Mode Register */ #define AT91_RTT_RTPRES (0xffff << 0) /* Real-time Timer Prescaler Value */ #define AT91_RTT_ALMIEN (1 << 16) /* Alarm Interrupt Enable */ #define AT91_RTT_RTTINCIEN (1 << 17) /* Real Time Timer Increment Interrupt Enable */ #define AT91_RTT_RTTRST (1 << 18) /* Real Time Timer Restart */ -#define AT91_RTT_AR (AT91_RTT + 0x04) /* Real-time Alarm Register */ +#define AT91_RTT_AR 0x04 /* Real-time Alarm Register */ #define AT91_RTT_ALMV (0xffffffff) /* Alarm Value */ -#define AT91_RTT_VR (AT91_RTT + 0x08) /* Real-time Value Register */ +#define AT91_RTT_VR 0x08 /* Real-time Value Register */ #define AT91_RTT_CRTV (0xffffffff) /* Current Real-time Value */ -#define AT91_RTT_SR (AT91_RTT + 0x0c) /* Real-time Status Register */ +#define AT91_RTT_SR 0x0c /* Real-time Status Register */ #define AT91_RTT_ALMS (1 << 0) /* Real-time Alarm Status */ #define AT91_RTT_RTTINC (1 << 1) /* Real-time Timer Increment */ diff --git a/include/asm-arm/arch-at91/at91_twi.h b/include/asm-arm/arch-at91/at91_twi.h index ca9a9073345..f9f2e3cd95c 100644 --- a/include/asm-arm/arch-at91/at91_twi.h +++ b/include/asm-arm/arch-at91/at91_twi.h @@ -21,6 +21,8 @@ #define AT91_TWI_STOP (1 << 1) /* Send a Stop Condition */ #define AT91_TWI_MSEN (1 << 2) /* Master Transfer Enable */ #define AT91_TWI_MSDIS (1 << 3) /* Master Transfer Disable */ +#define AT91_TWI_SVEN (1 << 4) /* Slave Transfer Enable [SAM9260 only] */ +#define AT91_TWI_SVDIS (1 << 5) /* Slave Transfer Disable [SAM9260 only] */ #define AT91_TWI_SWRST (1 << 7) /* Software Reset */ #define AT91_TWI_MMR 0x04 /* Master Mode Register */ @@ -32,6 +34,9 @@ #define AT91_TWI_MREAD (1 << 12) /* Master Read Direction */ #define AT91_TWI_DADR (0x7f << 16) /* Device Address */ +#define AT91_TWI_SMR 0x08 /* Slave Mode Register [SAM9260 only] */ +#define AT91_TWI_SADR (0x7f << 16) /* Slave Address */ + #define AT91_TWI_IADR 0x0c /* Internal Address Register */ #define AT91_TWI_CWGR 0x10 /* Clock Waveform Generator Register */ @@ -43,9 +48,15 @@ #define AT91_TWI_TXCOMP (1 << 0) /* Transmission Complete */ #define AT91_TWI_RXRDY (1 << 1) /* Receive Holding Register Ready */ #define AT91_TWI_TXRDY (1 << 2) /* Transmit Holding Register Ready */ +#define AT91_TWI_SVREAD (1 << 3) /* Slave Read [SAM9260 only] */ +#define AT91_TWI_SVACC (1 << 4) /* Slave Access [SAM9260 only] */ +#define AT91_TWI_GACC (1 << 5) /* General Call Access [SAM9260 only] */ #define AT91_TWI_OVRE (1 << 6) /* Overrun Error [AT91RM9200 only] */ #define AT91_TWI_UNRE (1 << 7) /* Underrun Error [AT91RM9200 only] */ #define AT91_TWI_NACK (1 << 8) /* Not Acknowledged */ +#define AT91_TWI_ARBLST (1 << 9) /* Arbitration Lost [SAM9260 only] */ +#define AT91_TWI_SCLWS (1 << 10) /* Clock Wait State [SAM9260 only] */ +#define AT91_TWI_EOSACC (1 << 11) /* End of Slave Address [SAM9260 only] */ #define AT91_TWI_IER 0x24 /* Interrupt Enable Register */ #define AT91_TWI_IDR 0x28 /* Interrupt Disable Register */ diff --git a/include/asm-arm/arch-at91/at91cap9.h b/include/asm-arm/arch-at91/at91cap9.h new file mode 100644 index 00000000000..73e1fcf4a0a --- /dev/null +++ b/include/asm-arm/arch-at91/at91cap9.h @@ -0,0 +1,121 @@ +/* + * include/asm-arm/arch-at91/at91cap9.h + * + * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> + * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> + * Copyright (C) 2007 Atmel Corporation. + * + * Common definitions. + * Based on AT91CAP9 datasheet revision B (Preliminary). + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef AT91CAP9_H +#define AT91CAP9_H + +/* + * Peripheral identifiers/interrupts. + */ +#define AT91_ID_FIQ 0 /* Advanced Interrupt Controller (FIQ) */ +#define AT91_ID_SYS 1 /* System Peripherals */ +#define AT91CAP9_ID_PIOABCD 2 /* Parallel IO Controller A, B, C and D */ +#define AT91CAP9_ID_MPB0 3 /* MP Block Peripheral 0 */ +#define AT91CAP9_ID_MPB1 4 /* MP Block Peripheral 1 */ +#define AT91CAP9_ID_MPB2 5 /* MP Block Peripheral 2 */ +#define AT91CAP9_ID_MPB3 6 /* MP Block Peripheral 3 */ +#define AT91CAP9_ID_MPB4 7 /* MP Block Peripheral 4 */ +#define AT91CAP9_ID_US0 8 /* USART 0 */ +#define AT91CAP9_ID_US1 9 /* USART 1 */ +#define AT91CAP9_ID_US2 10 /* USART 2 */ +#define AT91CAP9_ID_MCI0 11 /* Multimedia Card Interface 0 */ +#define AT91CAP9_ID_MCI1 12 /* Multimedia Card Interface 1 */ +#define AT91CAP9_ID_CAN 13 /* CAN */ +#define AT91CAP9_ID_TWI 14 /* Two-Wire Interface */ +#define AT91CAP9_ID_SPI0 15 /* Serial Peripheral Interface 0 */ +#define AT91CAP9_ID_SPI1 16 /* Serial Peripheral Interface 0 */ +#define AT91CAP9_ID_SSC0 17 /* Serial Synchronous Controller 0 */ +#define AT91CAP9_ID_SSC1 18 /* Serial Synchronous Controller 1 */ +#define AT91CAP9_ID_AC97C 19 /* AC97 Controller */ +#define AT91CAP9_ID_TCB 20 /* Timer Counter 0, 1 and 2 */ +#define AT91CAP9_ID_PWMC 21 /* Pulse Width Modulation Controller */ +#define AT91CAP9_ID_EMAC 22 /* Ethernet */ +#define AT91CAP9_ID_AESTDES 23 /* Advanced Encryption Standard, Triple DES */ +#define AT91CAP9_ID_ADC 24 /* Analog-to-Digital Converter */ +#define AT91CAP9_ID_ISI 25 /* Image Sensor Interface */ +#define AT91CAP9_ID_LCDC 26 /* LCD Controller */ +#define AT91CAP9_ID_DMA 27 /* DMA Controller */ +#define AT91CAP9_ID_UDPHS 28 /* USB High Speed Device Port */ +#define AT91CAP9_ID_UHP 29 /* USB Host Port */ +#define AT91CAP9_ID_IRQ0 30 /* Advanced Interrupt Controller (IRQ0) */ +#define AT91CAP9_ID_IRQ1 31 /* Advanced Interrupt Controller (IRQ1) */ + +/* + * User Peripheral physical base addresses. + */ +#define AT91CAP9_BASE_UDPHS 0xfff78000 +#define AT91CAP9_BASE_TCB0 0xfff7c000 +#define AT91CAP9_BASE_TC0 0xfff7c000 +#define AT91CAP9_BASE_TC1 0xfff7c040 +#define AT91CAP9_BASE_TC2 0xfff7c080 +#define AT91CAP9_BASE_MCI0 0xfff80000 +#define AT91CAP9_BASE_MCI1 0xfff84000 +#define AT91CAP9_BASE_TWI 0xfff88000 +#define AT91CAP9_BASE_US0 0xfff8c000 +#define AT91CAP9_BASE_US1 0xfff90000 +#define AT91CAP9_BASE_US2 0xfff94000 +#define AT91CAP9_BASE_SSC0 0xfff98000 +#define AT91CAP9_BASE_SSC1 0xfff9c000 +#define AT91CAP9_BASE_AC97C 0xfffa0000 +#define AT91CAP9_BASE_SPI0 0xfffa4000 +#define AT91CAP9_BASE_SPI1 0xfffa8000 +#define AT91CAP9_BASE_CAN 0xfffac000 +#define AT91CAP9_BASE_PWMC 0xfffb8000 +#define AT91CAP9_BASE_EMAC 0xfffbc000 +#define AT91CAP9_BASE_ADC 0xfffc0000 +#define AT91CAP9_BASE_ISI 0xfffc4000 +#define AT91_BASE_SYS 0xffffe200 + +/* + * System Peripherals (offset from AT91_BASE_SYS) + */ +#define AT91_ECC (0xffffe200 - AT91_BASE_SYS) +#define AT91_BCRAMC (0xffffe400 - AT91_BASE_SYS) +#define AT91_DDRSDRC (0xffffe600 - AT91_BASE_SYS) +#define AT91_SMC (0xffffe800 - AT91_BASE_SYS) +#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS) +#define AT91_CCFG (0xffffeb10 - AT91_BASE_SYS) +#define AT91_DMA (0xffffec00 - AT91_BASE_SYS) +#define AT91_DBGU (0xffffee00 - AT91_BASE_SYS) +#define AT91_AIC (0xfffff000 - AT91_BASE_SYS) +#define AT91_PIOA (0xfffff200 - AT91_BASE_SYS) +#define AT91_PIOB (0xfffff400 - AT91_BASE_SYS) +#define AT91_PIOC (0xfffff600 - AT91_BASE_SYS) +#define AT91_PIOD (0xfffff800 - AT91_BASE_SYS) +#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) +#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS) +#define AT91_SHDC (0xfffffd10 - AT91_BASE_SYS) +#define AT91_RTT (0xfffffd20 - AT91_BASE_SYS) +#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS) +#define AT91_WDT (0xfffffd40 - AT91_BASE_SYS) +#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS) + +/* + * Internal Memory. + */ +#define AT91CAP9_SRAM_BASE 0x00100000 /* Internal SRAM base address */ +#define AT91CAP9_SRAM_SIZE (32 * SZ_1K) /* Internal SRAM size (32Kb) */ + +#define AT91CAP9_ROM_BASE 0x00400000 /* Internal ROM base address */ +#define AT91CAP9_ROM_SIZE (32 * SZ_1K) /* Internal ROM size (32Kb) */ + +#define AT91CAP9_LCDC_BASE 0x00500000 /* LCD Controller */ +#define AT91CAP9_UDPHS_BASE 0x00600000 /* USB High Speed Device Port */ +#define AT91CAP9_UHP_BASE 0x00700000 /* USB Host controller */ + +#define CONFIG_DRAM_BASE AT91_CHIPSELECT_6 + +#endif diff --git a/include/asm-arm/arch-at91/at91cap9_matrix.h b/include/asm-arm/arch-at91/at91cap9_matrix.h new file mode 100644 index 00000000000..a641686b6c3 --- /dev/null +++ b/include/asm-arm/arch-at91/at91cap9_matrix.h @@ -0,0 +1,132 @@ +/* + * include/asm-arm/arch-at91/at91cap9_matrix.h + * + * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com> + * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com> + * Copyright (C) 2006 Atmel Corporation. + * + * Memory Controllers (MATRIX, EBI) - System peripherals registers. + * Based on AT91CAP9 datasheet revision B (Preliminary). + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef AT91CAP9_MATRIX_H +#define AT91CAP9_MATRIX_H + +#define AT91_MATRIX_MCFG0 (AT91_MATRIX + 0x00) /* Master Configuration Register 0 */ +#define AT91_MATRIX_MCFG1 (AT91_MATRIX + 0x04) /* Master Configuration Register 1 */ +#define AT91_MATRIX_MCFG2 (AT91_MATRIX + 0x08) /* Master Configuration Register 2 */ +#define AT91_MATRIX_MCFG3 (AT91_MATRIX + 0x0C) /* Master Configuration Register 3 */ +#define AT91_MATRIX_MCFG4 (AT91_MATRIX + 0x10) /* Master Configuration Register 4 */ +#define AT91_MATRIX_MCFG5 (AT91_MATRIX + 0x14) /* Master Configuration Register 5 */ +#define AT91_MATRIX_MCFG6 (AT91_MATRIX + 0x18) /* Master Configuration Register 6 */ +#define AT91_MATRIX_MCFG7 (AT91_MATRIX + 0x1C) /* Master Configuration Register 7 */ +#define AT91_MATRIX_MCFG8 (AT91_MATRIX + 0x20) /* Master Configuration Register 8 */ +#define AT91_MATRIX_MCFG9 (AT91_MATRIX + 0x24) /* Master Configuration Register 9 */ +#define AT91_MATRIX_MCFG10 (AT91_MATRIX + 0x28) /* Master Configuration Register 10 */ +#define AT91_MATRIX_MCFG11 (AT91_MATRIX + 0x2C) /* Master Configuration Register 11 */ +#define AT91_MATRIX_ULBT (7 << 0) /* Undefined Length Burst Type */ +#define AT91_MATRIX_ULBT_INFINITE (0 << 0) +#define AT91_MATRIX_ULBT_SINGLE (1 << 0) +#define AT91_MATRIX_ULBT_FOUR (2 << 0) +#define AT91_MATRIX_ULBT_EIGHT (3 << 0) +#define AT91_MATRIX_ULBT_SIXTEEN (4 << 0) + +#define AT91_MATRIX_SCFG0 (AT91_MATRIX + 0x40) /* Slave Configuration Register 0 */ +#define AT91_MATRIX_SCFG1 (AT91_MATRIX + 0x44) /* Slave Configuration Register 1 */ +#define AT91_MATRIX_SCFG2 (AT91_MATRIX + 0x48) /* Slave Configuration Register 2 */ +#define AT91_MATRIX_SCFG3 (AT91_MATRIX + 0x4C) /* Slave Configuration Register 3 */ +#define AT91_MATRIX_SCFG4 (AT91_MATRIX + 0x50) /* Slave Configuration Register 4 */ +#define AT91_MATRIX_SCFG5 (AT91_MATRIX + 0x54) /* Slave Configuration Register 5 */ +#define AT91_MATRIX_SCFG6 (AT91_MATRIX + 0x58) /* Slave Configuration Register 6 */ +#define AT91_MATRIX_SCFG7 (AT91_MATRIX + 0x5C) /* Slave Configuration Register 7 */ +#define AT91_MATRIX_SCFG8 (AT91_MATRIX + 0x60) /* Slave Configuration Register 8 */ +#define AT91_MATRIX_SCFG9 (AT91_MATRIX + 0x64) /* Slave Configuration Register 9 */ +#define AT91_MATRIX_SLOT_CYCLE (0xff << 0) /* Maximum Number of Allowed Cycles for a Burst */ +#define AT91_MATRIX_DEFMSTR_TYPE (3 << 16) /* Default Master Type */ +#define AT91_MATRIX_DEFMSTR_TYPE_NONE (0 << 16) +#define AT91_MATRIX_DEFMSTR_TYPE_LAST (1 << 16) +#define AT91_MATRIX_DEFMSTR_TYPE_FIXED (2 << 16) +#define AT91_MATRIX_FIXED_DEFMSTR (0xf << 18) /* Fixed Index of Default Master */ +#define AT91_MATRIX_ARBT (3 << 24) /* Arbitration Type */ +#define AT91_MATRIX_ARBT_ROUND_ROBIN (0 << 24) +#define AT91_MATRIX_ARBT_FIXED_PRIORITY (1 << 24) + +#define AT91_MATRIX_PRAS0 (AT91_MATRIX + 0x80) /* Priority Register A for Slave 0 */ +#define AT91_MATRIX_PRBS0 (AT91_MATRIX + 0x84) /* Priority Register B for Slave 0 */ +#define AT91_MATRIX_PRAS1 (AT91_MATRIX + 0x88) /* Priority Register A for Slave 1 */ +#define AT91_MATRIX_PRBS1 (AT91_MATRIX + 0x8C) /* Priority Register B for Slave 1 */ +#define AT91_MATRIX_PRAS2 (AT91_MATRIX + 0x90) /* Priority Register A for Slave 2 */ +#define AT91_MATRIX_PRBS2 (AT91_MATRIX + 0x94) /* Priority Register B for Slave 2 */ +#define AT91_MATRIX_PRAS3 (AT91_MATRIX + 0x98) /* Priority Register A for Slave 3 */ +#define AT91_MATRIX_PRBS3 (AT91_MATRIX + 0x9C) /* Priority Register B for Slave 3 */ +#define AT91_MATRIX_PRAS4 (AT91_MATRIX + 0xA0) /* Priority Register A for Slave 4 */ +#define AT91_MATRIX_PRBS4 (AT91_MATRIX + 0xA4) /* Priority Register B for Slave 4 */ +#define AT91_MATRIX_PRAS5 (AT91_MATRIX + 0xA8) /* Priority Register A for Slave 5 */ +#define AT91_MATRIX_PRBS5 (AT91_MATRIX + 0xAC) /* Priority Register B for Slave 5 */ +#define AT91_MATRIX_PRAS6 (AT91_MATRIX + 0xB0) /* Priority Register A for Slave 6 */ +#define AT91_MATRIX_PRBS6 (AT91_MATRIX + 0xB4) /* Priority Register B for Slave 6 */ +#define AT91_MATRIX_PRAS7 (AT91_MATRIX + 0xB8) /* Priority Register A for Slave 7 */ +#define AT91_MATRIX_PRBS7 (AT91_MATRIX + 0xBC) /* Priority Register B for Slave 7 */ +#define AT91_MATRIX_PRAS8 (AT91_MATRIX + 0xC0) /* Priority Register A for Slave 8 */ +#define AT91_MATRIX_PRBS8 (AT91_MATRIX + 0xC4) /* Priority Register B for Slave 8 */ +#define AT91_MATRIX_PRAS9 (AT91_MATRIX + 0xC8) /* Priority Register A for Slave 9 */ +#define AT91_MATRIX_PRBS9 (AT91_MATRIX + 0xCC) /* Priority Register B for Slave 9 */ +#define AT91_MATRIX_M0PR (3 << 0) /* Master 0 Priority */ +#define AT91_MATRIX_M1PR (3 << 4) /* Master 1 Priority */ +#define AT91_MATRIX_M2PR (3 << 8) /* Master 2 Priority */ +#define AT91_MATRIX_M3PR (3 << 12) /* Master 3 Priority */ +#define AT91_MATRIX_M4PR (3 << 16) /* Master 4 Priority */ +#define AT91_MATRIX_M5PR (3 << 20) /* Master 5 Priority */ +#define AT91_MATRIX_M6PR (3 << 24) /* Master 6 Priority */ +#define AT91_MATRIX_M7PR (3 << 28) /* Master 7 Priority */ +#define AT91_MATRIX_M8PR (3 << 0) /* Master 8 Priority (in Register B) */ +#define AT91_MATRIX_M9PR (3 << 4) /* Master 9 Priority (in Register B) */ +#define AT91_MATRIX_M10PR (3 << 8) /* Master 10 Priority (in Register B) */ +#define AT91_MATRIX_M11PR (3 << 12) /* Master 11 Priority (in Register B) */ + +#define AT91_MATRIX_MRCR (AT91_MATRIX + 0x100) /* Master Remap Control Register */ +#define AT91_MATRIX_RCB0 (1 << 0) /* Remap Command for AHB Master 0 (ARM926EJ-S Instruction Master) */ +#define AT91_MATRIX_RCB1 (1 << 1) /* Remap Command for AHB Master 1 (ARM926EJ-S Data Master) */ +#define AT91_MATRIX_RCB2 (1 << 2) +#define AT91_MATRIX_RCB3 (1 << 3) +#define AT91_MATRIX_RCB4 (1 << 4) +#define AT91_MATRIX_RCB5 (1 << 5) +#define AT91_MATRIX_RCB6 (1 << 6) +#define AT91_MATRIX_RCB7 (1 << 7) +#define AT91_MATRIX_RCB8 (1 << 8) +#define AT91_MATRIX_RCB9 (1 << 9) +#define AT91_MATRIX_RCB10 (1 << 10) +#define AT91_MATRIX_RCB11 (1 << 11) + +#define AT91_MPBS0_SFR (AT91_MATRIX + 0x114) /* MPBlock Slave 0 Special Function Register */ +#define AT91_MPBS1_SFR (AT91_MATRIX + 0x11C) /* MPBlock Slave 1 Special Function Register */ + +#define AT91_MATRIX_EBICSA (AT91_MATRIX + 0x120) /* EBI Chip Select Assignment Register */ +#define AT91_MATRIX_EBI_CS1A (1 << 1) /* Chip Select 1 Assignment */ +#define AT91_MATRIX_EBI_CS1A_SMC (0 << 1) +#define AT91_MATRIX_EBI_CS1A_BCRAMC (1 << 1) +#define AT91_MATRIX_EBI_CS3A (1 << 3) /* Chip Select 3 Assignment */ +#define AT91_MATRIX_EBI_CS3A_SMC (0 << 3) +#define AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA (1 << 3) +#define AT91_MATRIX_EBI_CS4A (1 << 4) /* Chip Select 4 Assignment */ +#define AT91_MATRIX_EBI_CS4A_SMC (0 << 4) +#define AT91_MATRIX_EBI_CS4A_SMC_CF1 (1 << 4) +#define AT91_MATRIX_EBI_CS5A (1 << 5) /* Chip Select 5 Assignment */ +#define AT91_MATRIX_EBI_CS5A_SMC (0 << 5) +#define AT91_MATRIX_EBI_CS5A_SMC_CF2 (1 << 5) +#define AT91_MATRIX_EBI_DBPUC (1 << 8) /* Data Bus Pull-up Configuration */ +#define AT91_MATRIX_EBI_DQSPDC (1 << 9) /* Data Qualifier Strobe Pull-Down Configuration */ +#define AT91_MATRIX_EBI_VDDIOMSEL (1 << 16) /* Memory voltage selection */ +#define AT91_MATRIX_EBI_VDDIOMSEL_1_8V (0 << 16) +#define AT91_MATRIX_EBI_VDDIOMSEL_3_3V (1 << 16) + +#define AT91_MPBS2_SFR (AT91_MATRIX + 0x12C) /* MPBlock Slave 2 Special Function Register */ +#define AT91_MPBS3_SFR (AT91_MATRIX + 0x130) /* MPBlock Slave 3 Special Function Register */ +#define AT91_APB_SFR (AT91_MATRIX + 0x134) /* APB Bridge Special Function Register */ + +#endif diff --git a/include/asm-arm/arch-at91/at91sam9260_matrix.h b/include/asm-arm/arch-at91/at91sam9260_matrix.h index aacb1e97642..a8e9fec6c73 100644 --- a/include/asm-arm/arch-at91/at91sam9260_matrix.h +++ b/include/asm-arm/arch-at91/at91sam9260_matrix.h @@ -67,7 +67,7 @@ #define AT91_MATRIX_CS4A (1 << 4) /* Chip Select 4 Assignment */ #define AT91_MATRIX_CS4A_SMC (0 << 4) #define AT91_MATRIX_CS4A_SMC_CF1 (1 << 4) -#define AT91_MATRIX_CS5A (1 << 5 ) /* Chip Select 5 Assignment */ +#define AT91_MATRIX_CS5A (1 << 5) /* Chip Select 5 Assignment */ #define AT91_MATRIX_CS5A_SMC (0 << 5) #define AT91_MATRIX_CS5A_SMC_CF2 (1 << 5) #define AT91_MATRIX_DBPUC (1 << 8) /* Data Bus Pull-up Configuration */ diff --git a/include/asm-arm/arch-at91/at91sam9263_matrix.h b/include/asm-arm/arch-at91/at91sam9263_matrix.h index 6fc6e4be624..72f6e668e41 100644 --- a/include/asm-arm/arch-at91/at91sam9263_matrix.h +++ b/include/asm-arm/arch-at91/at91sam9263_matrix.h @@ -44,7 +44,7 @@ #define AT91_MATRIX_DEFMSTR_TYPE_NONE (0 << 16) #define AT91_MATRIX_DEFMSTR_TYPE_LAST (1 << 16) #define AT91_MATRIX_DEFMSTR_TYPE_FIXED (2 << 16) -#define AT91_MATRIX_FIXED_DEFMSTR (7 << 18) /* Fixed Index of Default Master */ +#define AT91_MATRIX_FIXED_DEFMSTR (0xf << 18) /* Fixed Index of Default Master */ #define AT91_MATRIX_ARBT (3 << 24) /* Arbitration Type */ #define AT91_MATRIX_ARBT_ROUND_ROBIN (0 << 24) #define AT91_MATRIX_ARBT_FIXED_PRIORITY (1 << 24) diff --git a/include/asm-arm/arch-at91/at91sam9rl_matrix.h b/include/asm-arm/arch-at91/at91sam9rl_matrix.h index b15f11b7c08..84224174e6a 100644 --- a/include/asm-arm/arch-at91/at91sam9rl_matrix.h +++ b/include/asm-arm/arch-at91/at91sam9rl_matrix.h @@ -38,7 +38,7 @@ #define AT91_MATRIX_DEFMSTR_TYPE_NONE (0 << 16) #define AT91_MATRIX_DEFMSTR_TYPE_LAST (1 << 16) #define AT91_MATRIX_DEFMSTR_TYPE_FIXED (2 << 16) -#define AT91_MATRIX_FIXED_DEFMSTR (7 << 18) /* Fixed Index of Default Master */ +#define AT91_MATRIX_FIXED_DEFMSTR (0xf << 18) /* Fixed Index of Default Master */ #define AT91_MATRIX_ARBT (3 << 24) /* Arbitration Type */ #define AT91_MATRIX_ARBT_ROUND_ROBIN (0 << 24) #define AT91_MATRIX_ARBT_FIXED_PRIORITY (1 << 24) diff --git a/include/asm-arm/arch-at91/board.h b/include/asm-arm/arch-at91/board.h index 79054965baa..55b07bd5316 100644 --- a/include/asm-arm/arch-at91/board.h +++ b/include/asm-arm/arch-at91/board.h @@ -34,6 +34,7 @@ #include <linux/mtd/partitions.h> #include <linux/device.h> #include <linux/i2c.h> +#include <linux/leds.h> #include <linux/spi/spi.h> /* USB Device */ @@ -71,7 +72,7 @@ struct at91_eth_data { }; extern void __init at91_add_device_eth(struct at91_eth_data *data); -#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) +#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91CAP9) #define eth_platform_data at91_eth_data #endif @@ -101,13 +102,23 @@ extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_de extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices); /* Serial */ +#define ATMEL_UART_CTS 0x01 +#define ATMEL_UART_RTS 0x02 +#define ATMEL_UART_DSR 0x04 +#define ATMEL_UART_DTR 0x08 +#define ATMEL_UART_DCD 0x10 +#define ATMEL_UART_RI 0x20 + +extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins); +extern void __init at91_set_serial_console(unsigned portnr); + struct at91_uart_config { unsigned short console_tty; /* tty number of serial console */ unsigned short nr_tty; /* number of serial tty's */ short tty_map[]; /* map UART to tty number */ }; extern struct platform_device *atmel_default_console_device; -extern void __init at91_init_serial(struct at91_uart_config *config); +extern void __init __deprecated at91_init_serial(struct at91_uart_config *config); struct atmel_uart_data { short use_dma_tx; /* use transmit DMA? */ @@ -116,6 +127,23 @@ struct atmel_uart_data { }; extern void __init at91_add_device_serial(void); +/* + * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC + * platform devices. Their SSC ID is part of their configuration data, + * along with information about which SSC signals they should use. + */ +#define ATMEL_SSC_TK 0x01 +#define ATMEL_SSC_TF 0x02 +#define ATMEL_SSC_TD 0x04 +#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD) + +#define ATMEL_SSC_RK 0x10 +#define ATMEL_SSC_RF 0x20 +#define ATMEL_SSC_RD 0x40 +#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD) + +extern void __init at91_add_device_ssc(unsigned id, unsigned pins); + /* LCD Controller */ struct atmel_lcdfb_info; extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data); @@ -126,10 +154,12 @@ struct atmel_ac97_data { }; extern void __init at91_add_device_ac97(struct atmel_ac97_data *data); + /* ISI */ +extern void __init at91_add_device_isi(void); + /* LEDs */ -extern u8 at91_leds_cpu; -extern u8 at91_leds_timer; extern void __init at91_init_leds(u8 cpu_led, u8 timer_led); +extern void __init at91_gpio_leds(struct gpio_led *leds, int nr); /* FIXME: this needs a better location, but gets stuff building again */ extern int at91_suspend_entering_slow_clock(void); diff --git a/include/asm-arm/arch-at91/cpu.h b/include/asm-arm/arch-at91/cpu.h index 080cbb401a8..7145166826a 100644 --- a/include/asm-arm/arch-at91/cpu.h +++ b/include/asm-arm/arch-at91/cpu.h @@ -21,13 +21,13 @@ #define ARCH_ID_AT91SAM9260 0x019803a0 #define ARCH_ID_AT91SAM9261 0x019703a0 #define ARCH_ID_AT91SAM9263 0x019607a0 +#define ARCH_ID_AT91SAM9RL64 0x019b03a0 +#define ARCH_ID_AT91CAP9 0x039A03A0 #define ARCH_ID_AT91SAM9XE128 0x329973a0 #define ARCH_ID_AT91SAM9XE256 0x329a93a0 #define ARCH_ID_AT91SAM9XE512 0x329aa3a0 -#define ARCH_ID_AT91SAM9RL64 0x019b03a0 - #define ARCH_ID_AT91M40800 0x14080044 #define ARCH_ID_AT91R40807 0x44080746 #define ARCH_ID_AT91M40807 0x14080745 @@ -81,6 +81,11 @@ static inline unsigned long at91_arch_identify(void) #define cpu_is_at91sam9rl() (0) #endif +#ifdef CONFIG_ARCH_AT91CAP9 +#define cpu_is_at91cap9() (at91_cpu_identify() == ARCH_ID_AT91CAP9) +#else +#define cpu_is_at91cap9() (0) +#endif /* * Since this is ARM, we will never run on any AVR32 CPU. But these diff --git a/include/asm-arm/arch-at91/entry-macro.S b/include/asm-arm/arch-at91/entry-macro.S index cc1d850a078..1005eee6219 100644 --- a/include/asm-arm/arch-at91/entry-macro.S +++ b/include/asm-arm/arch-at91/entry-macro.S @@ -17,13 +17,13 @@ .endm .macro get_irqnr_preamble, base, tmp + ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual address of AIC peripheral .endm .macro arch_ret_to_user, tmp1, tmp2 .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual address of AIC peripheral ldr \irqnr, [\base, #(AT91_AIC_IVR - AT91_AIC)] @ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt) ldr \irqstat, [\base, #(AT91_AIC_ISR - AT91_AIC)] @ read interrupt source number teq \irqstat, #0 @ ISR is 0 when no current interrupt, or spurious interrupt diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h index 8f1cdd38a96..2c826d8247a 100644 --- a/include/asm-arm/arch-at91/hardware.h +++ b/include/asm-arm/arch-at91/hardware.h @@ -26,6 +26,8 @@ #include <asm/arch/at91sam9263.h> #elif defined(CONFIG_ARCH_AT91SAM9RL) #include <asm/arch/at91sam9rl.h> +#elif defined(CONFIG_ARCH_AT91CAP9) +#include <asm/arch/at91cap9.h> #elif defined(CONFIG_ARCH_AT91X40) #include <asm/arch/at91x40.h> #else diff --git a/include/asm-arm/arch-at91/timex.h b/include/asm-arm/arch-at91/timex.h index a310698fb4d..f1933b0fa43 100644 --- a/include/asm-arm/arch-at91/timex.h +++ b/include/asm-arm/arch-at91/timex.h @@ -42,6 +42,11 @@ #define AT91SAM9_MASTER_CLOCK 100000000 #define CLOCK_TICK_RATE (AT91SAM9_MASTER_CLOCK/16) +#elif defined(CONFIG_ARCH_AT91CAP9) + +#define AT91CAP9_MASTER_CLOCK 100000000 +#define CLOCK_TICK_RATE (AT91CAP9_MASTER_CLOCK/16) + #elif defined(CONFIG_ARCH_AT91X40) #define AT91X40_MASTER_CLOCK 40000000 diff --git a/include/asm-arm/arch-ep93xx/gpio.h b/include/asm-arm/arch-ep93xx/gpio.h index 1ee14a14cba..9b1864bbd9a 100644 --- a/include/asm-arm/arch-ep93xx/gpio.h +++ b/include/asm-arm/arch-ep93xx/gpio.h @@ -5,16 +5,6 @@ #ifndef __ASM_ARCH_GPIO_H #define __ASM_ARCH_GPIO_H -#define GPIO_IN 0 -#define GPIO_OUT 1 - -#define EP93XX_GPIO_LOW 0 -#define EP93XX_GPIO_HIGH 1 - -extern void gpio_line_config(int line, int direction); -extern int gpio_line_get(int line); -extern void gpio_line_set(int line, int value); - /* GPIO port A. */ #define EP93XX_GPIO_LINE_A(x) ((x) + 0) #define EP93XX_GPIO_LINE_EGPIO0 EP93XX_GPIO_LINE_A(0) @@ -38,7 +28,7 @@ extern void gpio_line_set(int line, int value); #define EP93XX_GPIO_LINE_EGPIO15 EP93XX_GPIO_LINE_B(7) /* GPIO port C. */ -#define EP93XX_GPIO_LINE_C(x) ((x) + 16) +#define EP93XX_GPIO_LINE_C(x) ((x) + 40) #define EP93XX_GPIO_LINE_ROW0 EP93XX_GPIO_LINE_C(0) #define EP93XX_GPIO_LINE_ROW1 EP93XX_GPIO_LINE_C(1) #define EP93XX_GPIO_LINE_ROW2 EP93XX_GPIO_LINE_C(2) @@ -71,7 +61,7 @@ extern void gpio_line_set(int line, int value); #define EP93XX_GPIO_LINE_IDEDA2 EP93XX_GPIO_LINE_E(7) /* GPIO port F. */ -#define EP93XX_GPIO_LINE_F(x) ((x) + 40) +#define EP93XX_GPIO_LINE_F(x) ((x) + 16) #define EP93XX_GPIO_LINE_WP EP93XX_GPIO_LINE_F(0) #define EP93XX_GPIO_LINE_MCCD1 EP93XX_GPIO_LINE_F(1) #define EP93XX_GPIO_LINE_MCCD2 EP93XX_GPIO_LINE_F(2) @@ -103,5 +93,49 @@ extern void gpio_line_set(int line, int value); #define EP93XX_GPIO_LINE_DD6 EP93XX_GPIO_LINE_H(6) #define EP93XX_GPIO_LINE_DD7 EP93XX_GPIO_LINE_H(7) +/* maximum value for gpio line identifiers */ +#define EP93XX_GPIO_LINE_MAX EP93XX_GPIO_LINE_H(7) + +/* maximum value for irq capable line identifiers */ +#define EP93XX_GPIO_LINE_MAX_IRQ EP93XX_GPIO_LINE_F(7) + +/* new generic GPIO API - see Documentation/gpio.txt */ + +static inline int gpio_request(unsigned gpio, const char *label) +{ + if (gpio > EP93XX_GPIO_LINE_MAX) + return -EINVAL; + return 0; +} + +static inline void gpio_free(unsigned gpio) +{ +} + +int gpio_direction_input(unsigned gpio); +int gpio_direction_output(unsigned gpio, int value); +int gpio_get_value(unsigned gpio); +void gpio_set_value(unsigned gpio, int value); + +#include <asm-generic/gpio.h> /* cansleep wrappers */ + +/* + * Map GPIO A0..A7 (0..7) to irq 64..71, + * B0..B7 (7..15) to irq 72..79, and + * F0..F7 (16..24) to irq 80..87. + */ + +static inline int gpio_to_irq(unsigned gpio) +{ + if (gpio <= EP93XX_GPIO_LINE_MAX_IRQ) + return 64 + gpio; + + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned irq) +{ + return irq - gpio_to_irq(0); +} #endif diff --git a/include/asm-arm/arch-ep93xx/irqs.h b/include/asm-arm/arch-ep93xx/irqs.h index 2a8c63638c5..53d4a68bfc8 100644 --- a/include/asm-arm/arch-ep93xx/irqs.h +++ b/include/asm-arm/arch-ep93xx/irqs.h @@ -67,12 +67,6 @@ #define IRQ_EP93XX_SAI 60 #define EP93XX_VIC2_VALID_IRQ_MASK 0x1fffffff -/* - * Map GPIO A0..A7 to irq 64..71, B0..B7 to 72..79, and - * F0..F7 to 80..87. - */ -#define IRQ_EP93XX_GPIO(x) (64 + (((x) + (((x) >> 2) & 8)) & 0x1f)) - #define NR_EP93XX_IRQS (64 + 24) #define EP93XX_BOARD_IRQ(x) (NR_EP93XX_IRQS + (x)) diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h index eeeea90cd5a..9c5d2357aff 100644 --- a/include/asm-arm/arch-ixp4xx/io.h +++ b/include/asm-arm/arch-ixp4xx/io.h @@ -61,13 +61,13 @@ __ixp4xx_ioremap(unsigned long addr, size_t size, unsigned int mtype) if((addr < PCIBIOS_MIN_MEM) || (addr > 0x4fffffff)) return __arm_ioremap(addr, size, mtype); - return (void *)addr; + return (void __iomem *)addr; } static inline void __ixp4xx_iounmap(void __iomem *addr) { - if ((u32)addr >= VMALLOC_START) + if ((__force u32)addr >= VMALLOC_START) __iounmap(addr); } @@ -141,9 +141,9 @@ __ixp4xx_writesw(volatile void __iomem *bus_addr, const u16 *vaddr, int count) static inline void __ixp4xx_writel(u32 value, volatile void __iomem *p) { - u32 addr = (u32)p; + u32 addr = (__force u32)p; if (addr >= VMALLOC_START) { - __raw_writel(value, addr); + __raw_writel(value, p); return; } @@ -208,11 +208,11 @@ __ixp4xx_readsw(const volatile void __iomem *bus_addr, u16 *vaddr, u32 count) static inline unsigned long __ixp4xx_readl(const volatile void __iomem *p) { - u32 addr = (u32)p; + u32 addr = (__force u32)p; u32 data; if (addr >= VMALLOC_START) - return __raw_readl(addr); + return __raw_readl(p); if (ixp4xx_pci_read(addr, NP_CMD_MEMREAD, &data)) return 0xffffffff; @@ -438,7 +438,7 @@ __ixp4xx_ioread32(const void __iomem *addr) return (unsigned int)__ixp4xx_inl(port & PIO_MASK); else { #ifndef CONFIG_IXP4XX_INDIRECT_PCI - return le32_to_cpu(__raw_readl((u32)port)); + return le32_to_cpu((__force __le32)__raw_readl(addr)); #else return (unsigned int)__ixp4xx_readl(addr); #endif @@ -523,7 +523,7 @@ __ixp4xx_iowrite32(u32 value, void __iomem *addr) __ixp4xx_outl(value, port & PIO_MASK); else #ifndef CONFIG_IXP4XX_INDIRECT_PCI - __raw_writel(cpu_to_le32(value), port); + __raw_writel((u32 __force)cpu_to_le32(value), addr); #else __ixp4xx_writel(value, addr); #endif diff --git a/include/asm-arm/arch-ixp4xx/platform.h b/include/asm-arm/arch-ixp4xx/platform.h index 2a44d3d6798..2ce28e3fd32 100644 --- a/include/asm-arm/arch-ixp4xx/platform.h +++ b/include/asm-arm/arch-ixp4xx/platform.h @@ -76,17 +76,6 @@ extern unsigned long ixp4xx_exp_bus_size; #define IXP4XX_UART_XTAL 14745600 /* - * The IXP4xx chips do not have an I2C unit, so GPIO lines are just - * used to - * Used as platform_data to provide GPIO pin information to the ixp42x - * I2C driver. - */ -struct ixp4xx_i2c_pins { - unsigned long sda_pin; - unsigned long scl_pin; -}; - -/* * This structure provide a means for the board setup code * to give information to th pata_ixp4xx driver. It is * passed as platform_data. diff --git a/include/asm-arm/arch-ks8695/regs-gpio.h b/include/asm-arm/arch-ks8695/regs-gpio.h index 57fcf9fc82e..6b95d77aea1 100644 --- a/include/asm-arm/arch-ks8695/regs-gpio.h +++ b/include/asm-arm/arch-ks8695/regs-gpio.h @@ -49,5 +49,7 @@ #define IOPC_TM_FALLING (4) /* Falling Edge Detection */ #define IOPC_TM_EDGE (6) /* Both Edge Detection */ +/* Port Data Register */ +#define IOPD_(x) (1 << (x)) /* Signal Level of GPIO Pin x */ #endif diff --git a/include/asm-arm/arch-msm/board.h b/include/asm-arm/arch-msm/board.h new file mode 100644 index 00000000000..763051f8ba1 --- /dev/null +++ b/include/asm-arm/arch-msm/board.h @@ -0,0 +1,37 @@ +/* linux/include/asm-arm/arch-msm/board.h + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_BOARD_H +#define __ASM_ARCH_MSM_BOARD_H + +#include <linux/types.h> + +/* platform device data structures */ + +struct msm_mddi_platform_data +{ + void (*panel_power)(int on); + unsigned has_vsync_irq:1; +}; + +/* common init routines for use by arch/arm/mach-msm/board-*.c */ + +void __init msm_add_devices(void); +void __init msm_map_common_io(void); +void __init msm_init_irq(void); +void __init msm_init_gpio(void); + +#endif diff --git a/include/asm-arm/arch-msm/debug-macro.S b/include/asm-arm/arch-msm/debug-macro.S new file mode 100644 index 00000000000..393d5272e50 --- /dev/null +++ b/include/asm-arm/arch-msm/debug-macro.S @@ -0,0 +1,40 @@ +/* include/asm-arm/arch-msm7200/debug-macro.S + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <asm/hardware.h> +#include <asm/arch/msm_iomap.h> + + .macro addruart,rx + @ see if the MMU is enabled and select appropriate base address + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 + ldreq \rx, =MSM_UART1_PHYS + ldrne \rx, =MSM_UART1_BASE + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #0x0C] + .endm + + .macro waituart,rd,rx + @ wait for TX_READY +1: ldr \rd, [\rx, #0x08] + tst \rd, #0x04 + beq 1b + .endm + + .macro busyuart,rd,rx + .endm diff --git a/include/asm-arm/arch-msm/dma.h b/include/asm-arm/arch-msm/dma.h new file mode 100644 index 00000000000..e4b565b27b3 --- /dev/null +++ b/include/asm-arm/arch-msm/dma.h @@ -0,0 +1,151 @@ +/* linux/include/asm-arm/arch-msm/dma.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_DMA_H + +#include <linux/list.h> +#include <asm/arch/msm_iomap.h> + +struct msm_dmov_cmd { + struct list_head list; + unsigned int cmdptr; + void (*complete_func)(struct msm_dmov_cmd *cmd, unsigned int result); +/* void (*user_result_func)(struct msm_dmov_cmd *cmd); */ +}; + +void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd); +void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd); +int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr); +/* int msm_dmov_exec_cmd_etc(unsigned id, unsigned int cmdptr, int timeout, int interruptible); */ + + + +#define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2)) +#define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2)) +#define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2)) +#define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2)) + +/* only security domain 3 is available to the ARM11 + * SD0 -> mARM trusted, SD1 -> mARM nontrusted, SD2 -> aDSP, SD3 -> aARM + */ + +#define DMOV_CMD_PTR(ch) DMOV_SD3(0x000, ch) +#define DMOV_CMD_LIST (0 << 29) /* does not work */ +#define DMOV_CMD_PTR_LIST (1 << 29) /* works */ +#define DMOV_CMD_INPUT_CFG (2 << 29) /* untested */ +#define DMOV_CMD_OUTPUT_CFG (3 << 29) /* untested */ +#define DMOV_CMD_ADDR(addr) ((addr) >> 3) + +#define DMOV_RSLT(ch) DMOV_SD3(0x040, ch) +#define DMOV_RSLT_VALID (1 << 31) /* 0 == host has empties result fifo */ +#define DMOV_RSLT_ERROR (1 << 3) +#define DMOV_RSLT_FLUSH (1 << 2) +#define DMOV_RSLT_DONE (1 << 1) /* top pointer done */ +#define DMOV_RSLT_USER (1 << 0) /* command with FR force result */ + +#define DMOV_FLUSH0(ch) DMOV_SD3(0x080, ch) +#define DMOV_FLUSH1(ch) DMOV_SD3(0x0C0, ch) +#define DMOV_FLUSH2(ch) DMOV_SD3(0x100, ch) +#define DMOV_FLUSH3(ch) DMOV_SD3(0x140, ch) +#define DMOV_FLUSH4(ch) DMOV_SD3(0x180, ch) +#define DMOV_FLUSH5(ch) DMOV_SD3(0x1C0, ch) + +#define DMOV_STATUS(ch) DMOV_SD3(0x200, ch) +#define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29)) +#define DMOV_STATUS_CMD_COUNT(n) (((n) >> 27) & 3) +#define DMOV_STATUS_RSLT_VALID (1 << 1) +#define DMOV_STATUS_CMD_PTR_RDY (1 << 0) + +#define DMOV_ISR DMOV_SD3(0x380, 0) + +#define DMOV_CONFIG(ch) DMOV_SD3(0x300, ch) +#define DMOV_CONFIG_FORCE_TOP_PTR_RSLT (1 << 2) +#define DMOV_CONFIG_FORCE_FLUSH_RSLT (1 << 1) +#define DMOV_CONFIG_IRQ_EN (1 << 0) + +/* channel assignments */ + +#define DMOV_NAND_CHAN 7 +#define DMOV_NAND_CRCI_CMD 5 +#define DMOV_NAND_CRCI_DATA 4 + +#define DMOV_SDC1_CHAN 8 +#define DMOV_SDC1_CRCI 6 + +#define DMOV_SDC2_CHAN 8 +#define DMOV_SDC2_CRCI 7 + +#define DMOV_TSIF_CHAN 10 +#define DMOV_TSIF_CRCI 10 + +#define DMOV_USB_CHAN 11 + +/* no client rate control ifc (eg, ram) */ +#define DMOV_NONE_CRCI 0 + + +/* If the CMD_PTR register has CMD_PTR_LIST selected, the data mover + * is going to walk a list of 32bit pointers as described below. Each + * pointer points to a *array* of dmov_s, etc structs. The last pointer + * in the list is marked with CMD_PTR_LP. The last struct in each array + * is marked with CMD_LC (see below). + */ +#define CMD_PTR_ADDR(addr) ((addr) >> 3) +#define CMD_PTR_LP (1 << 31) /* last pointer */ +#define CMD_PTR_PT (3 << 29) /* ? */ + +/* Single Item Mode */ +typedef struct { + unsigned cmd; + unsigned src; + unsigned dst; + unsigned len; +} dmov_s; + +/* Scatter/Gather Mode */ +typedef struct { + unsigned cmd; + unsigned src_dscr; + unsigned dst_dscr; + unsigned _reserved; +} dmov_sg; + +/* bits for the cmd field of the above structures */ + +#define CMD_LC (1 << 31) /* last command */ +#define CMD_FR (1 << 22) /* force result -- does not work? */ +#define CMD_OCU (1 << 21) /* other channel unblock */ +#define CMD_OCB (1 << 20) /* other channel block */ +#define CMD_TCB (1 << 19) /* ? */ +#define CMD_DAH (1 << 18) /* destination address hold -- does not work?*/ +#define CMD_SAH (1 << 17) /* source address hold -- does not work? */ + +#define CMD_MODE_SINGLE (0 << 0) /* dmov_s structure used */ +#define CMD_MODE_SG (1 << 0) /* untested */ +#define CMD_MODE_IND_SG (2 << 0) /* untested */ +#define CMD_MODE_BOX (3 << 0) /* untested */ + +#define CMD_DST_SWAP_BYTES (1 << 14) /* exchange each byte n with byte n+1 */ +#define CMD_DST_SWAP_SHORTS (1 << 15) /* exchange each short n with short n+1 */ +#define CMD_DST_SWAP_WORDS (1 << 16) /* exchange each word n with word n+1 */ + +#define CMD_SRC_SWAP_BYTES (1 << 11) /* exchange each byte n with byte n+1 */ +#define CMD_SRC_SWAP_SHORTS (1 << 12) /* exchange each short n with short n+1 */ +#define CMD_SRC_SWAP_WORDS (1 << 13) /* exchange each word n with word n+1 */ + +#define CMD_DST_CRCI(n) (((n) & 15) << 7) +#define CMD_SRC_CRCI(n) (((n) & 15) << 3) + +#endif diff --git a/include/asm-arm/arch-msm/entry-macro.S b/include/asm-arm/arch-msm/entry-macro.S new file mode 100644 index 00000000000..ee24aece4cb --- /dev/null +++ b/include/asm-arm/arch-msm/entry-macro.S @@ -0,0 +1,38 @@ +/* include/asm-arm/arch-msm7200/entry-macro.S + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <asm/arch/msm_iomap.h> + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + @ enable imprecise aborts + cpsie a + mov \base, #MSM_VIC_BASE + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + @ 0xD0 has irq# or old irq# if the irq has been handled + @ 0xD4 has irq# or -1 if none pending *but* if you just + @ read 0xD4 you never get the first irq for some reason + ldr \irqnr, [\base, #0xD0] + ldr \irqnr, [\base, #0xD4] + cmp \irqnr, #0xffffffff + .endm diff --git a/include/asm-arm/arch-msm/hardware.h b/include/asm-arm/arch-msm/hardware.h new file mode 100644 index 00000000000..89af2b70182 --- /dev/null +++ b/include/asm-arm/arch-msm/hardware.h @@ -0,0 +1,18 @@ +/* linux/include/asm-arm/arch-msm/hardware.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_HARDWARE_H + +#endif diff --git a/include/asm-arm/arch-msm/io.h b/include/asm-arm/arch-msm/io.h new file mode 100644 index 00000000000..4645ae26b62 --- /dev/null +++ b/include/asm-arm/arch-msm/io.h @@ -0,0 +1,33 @@ +/* include/asm-arm/arch-msm/io.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +#define __arch_ioremap __msm_ioremap +#define __arch_iounmap __iounmap + +void __iomem *__msm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype); + +static inline void __iomem *__io(unsigned long addr) +{ + return (void __iomem *)addr; +} +#define __io(a) __io(a) +#define __mem_pci(a) (a) + +#endif diff --git a/include/asm-arm/arch-msm/irqs.h b/include/asm-arm/arch-msm/irqs.h new file mode 100644 index 00000000000..565430cfaa7 --- /dev/null +++ b/include/asm-arm/arch-msm/irqs.h @@ -0,0 +1,89 @@ +/* linux/include/asm-arm/arch-msm/irqs.h + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_IRQS_H + +/* MSM ARM11 Interrupt Numbers */ +/* See 80-VE113-1 A, pp219-221 */ + +#define INT_A9_M2A_0 0 +#define INT_A9_M2A_1 1 +#define INT_A9_M2A_2 2 +#define INT_A9_M2A_3 3 +#define INT_A9_M2A_4 4 +#define INT_A9_M2A_5 5 +#define INT_A9_M2A_6 6 +#define INT_GP_TIMER_EXP 7 +#define INT_DEBUG_TIMER_EXP 8 +#define INT_UART1 9 +#define INT_UART2 10 +#define INT_UART3 11 +#define INT_UART1_RX 12 +#define INT_UART2_RX 13 +#define INT_UART3_RX 14 +#define INT_USB_OTG 15 +#define INT_MDDI_PRI 16 +#define INT_MDDI_EXT 17 +#define INT_MDDI_CLIENT 18 +#define INT_MDP 19 +#define INT_GRAPHICS 20 +#define INT_ADM_AARM 21 +#define INT_ADSP_A11 22 +#define INT_ADSP_A9_A11 23 +#define INT_SDC1_0 24 +#define INT_SDC1_1 25 +#define INT_SDC2_0 26 +#define INT_SDC2_1 27 +#define INT_KEYSENSE 28 +#define INT_TCHSCRN_SSBI 29 +#define INT_TCHSCRN1 30 +#define INT_TCHSCRN2 31 + +#define INT_GPIO_GROUP1 (32 + 0) +#define INT_GPIO_GROUP2 (32 + 1) +#define INT_PWB_I2C (32 + 2) +#define INT_SOFTRESET (32 + 3) +#define INT_NAND_WR_ER_DONE (32 + 4) +#define INT_NAND_OP_DONE (32 + 5) +#define INT_PBUS_ARM11 (32 + 6) +#define INT_AXI_MPU_SMI (32 + 7) +#define INT_AXI_MPU_EBI1 (32 + 8) +#define INT_AD_HSSD (32 + 9) +#define INT_ARM11_PMU (32 + 10) +#define INT_ARM11_DMA (32 + 11) +#define INT_TSIF_IRQ (32 + 12) +#define INT_UART1DM_IRQ (32 + 13) +#define INT_UART1DM_RX (32 + 14) +#define INT_USB_HS (32 + 15) +#define INT_SDC3_0 (32 + 16) +#define INT_SDC3_1 (32 + 17) +#define INT_SDC4_0 (32 + 18) +#define INT_SDC4_1 (32 + 19) +#define INT_UART2DM_RX (32 + 20) +#define INT_UART2DM_IRQ (32 + 21) + +/* 22-31 are reserved */ + +#define MSM_IRQ_BIT(irq) (1 << ((irq) & 31)) + +#define NR_MSM_IRQS 64 +#define NR_GPIO_IRQS 122 +#define NR_BOARD_IRQS 64 +#define NR_IRQS (NR_MSM_IRQS + NR_GPIO_IRQS + NR_BOARD_IRQS) + +#define MSM_GPIO_TO_INT(n) (NR_MSM_IRQS + (n)) + +#endif diff --git a/include/asm-arm/arch-msm/memory.h b/include/asm-arm/arch-msm/memory.h new file mode 100644 index 00000000000..b5ce0e9ac86 --- /dev/null +++ b/include/asm-arm/arch-msm/memory.h @@ -0,0 +1,27 @@ +/* linux/include/asm-arm/arch-msm/memory.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +/* physical offset of RAM */ +#define PHYS_OFFSET UL(0x10000000) + +/* bus address and physical addresses are identical */ +#define __virt_to_bus(x) __virt_to_phys(x) +#define __bus_to_virt(x) __phys_to_virt(x) + +#endif + diff --git a/include/asm-arm/arch-msm/msm_iomap.h b/include/asm-arm/arch-msm/msm_iomap.h new file mode 100644 index 00000000000..b8955cc26fe --- /dev/null +++ b/include/asm-arm/arch-msm/msm_iomap.h @@ -0,0 +1,104 @@ +/* linux/include/asm-arm/arch-msm/msm_iomap.h + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * The MSM peripherals are spread all over across 768MB of physical + * space, which makes just having a simple IO_ADDRESS macro to slide + * them into the right virtual location rough. Instead, we will + * provide a master phys->virt mapping for peripherals here. + * + */ + +#ifndef __ASM_ARCH_MSM_IOMAP_H +#define __ASM_ARCH_MSM_IOMAP_H + +#include <asm/sizes.h> + +/* Physical base address and size of peripherals. + * Ordered by the virtual base addresses they will be mapped at. + * + * MSM_VIC_BASE must be an value that can be loaded via a "mov" + * instruction, otherwise entry-macro.S will not compile. + * + * If you add or remove entries here, you'll want to edit the + * msm_io_desc array in arch/arm/mach-msm/io.c to reflect your + * changes. + * + */ + +#define MSM_VIC_BASE 0xE0000000 +#define MSM_VIC_PHYS 0xC0000000 +#define MSM_VIC_SIZE SZ_4K + +#define MSM_CSR_BASE 0xE0001000 +#define MSM_CSR_PHYS 0xC0100000 +#define MSM_CSR_SIZE SZ_4K + +#define MSM_GPT_PHYS MSM_CSR_PHYS +#define MSM_GPT_BASE MSM_CSR_BASE +#define MSM_GPT_SIZE SZ_4K + +#define MSM_DMOV_BASE 0xE0002000 +#define MSM_DMOV_PHYS 0xA9700000 +#define MSM_DMOV_SIZE SZ_4K + +#define MSM_UART1_BASE 0xE0003000 +#define MSM_UART1_PHYS 0xA9A00000 +#define MSM_UART1_SIZE SZ_4K + +#define MSM_UART2_BASE 0xE0004000 +#define MSM_UART2_PHYS 0xA9B00000 +#define MSM_UART2_SIZE SZ_4K + +#define MSM_UART3_BASE 0xE0005000 +#define MSM_UART3_PHYS 0xA9C00000 +#define MSM_UART3_SIZE SZ_4K + +#define MSM_I2C_BASE 0xE0006000 +#define MSM_I2C_PHYS 0xA9900000 +#define MSM_I2C_SIZE SZ_4K + +#define MSM_GPIO1_BASE 0xE0007000 +#define MSM_GPIO1_PHYS 0xA9200000 +#define MSM_GPIO1_SIZE SZ_4K + +#define MSM_GPIO2_BASE 0xE0008000 +#define MSM_GPIO2_PHYS 0xA9300000 +#define MSM_GPIO2_SIZE SZ_4K + +#define MSM_HSUSB_BASE 0xE0009000 +#define MSM_HSUSB_PHYS 0xA0800000 +#define MSM_HSUSB_SIZE SZ_4K + +#define MSM_CLK_CTL_BASE 0xE000A000 +#define MSM_CLK_CTL_PHYS 0xA8600000 +#define MSM_CLK_CTL_SIZE SZ_4K + +#define MSM_PMDH_BASE 0xE000B000 +#define MSM_PMDH_PHYS 0xAA600000 +#define MSM_PMDH_SIZE SZ_4K + +#define MSM_EMDH_BASE 0xE000C000 +#define MSM_EMDH_PHYS 0xAA700000 +#define MSM_EMDH_SIZE SZ_4K + +#define MSM_MDP_BASE 0xE0010000 +#define MSM_MDP_PHYS 0xAA200000 +#define MSM_MDP_SIZE 0x000F0000 + +#define MSM_SHARED_RAM_BASE 0xE0100000 +#define MSM_SHARED_RAM_PHYS 0x01F00000 +#define MSM_SHARED_RAM_SIZE SZ_1M + +#endif diff --git a/include/asm-arm/arch-msm/system.h b/include/asm-arm/arch-msm/system.h new file mode 100644 index 00000000000..7c5544bdd0c --- /dev/null +++ b/include/asm-arm/arch-msm/system.h @@ -0,0 +1,23 @@ +/* linux/include/asm-arm/arch-msm/system.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <asm/hardware.h> + +void arch_idle(void); + +static inline void arch_reset(char mode) +{ + for (;;) ; /* depends on IPC w/ other core */ +} diff --git a/include/asm-arm/arch-msm/timex.h b/include/asm-arm/arch-msm/timex.h new file mode 100644 index 00000000000..154b23fb359 --- /dev/null +++ b/include/asm-arm/arch-msm/timex.h @@ -0,0 +1,20 @@ +/* linux/include/asm-arm/arch-msm/timex.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_TIMEX_H + +#define CLOCK_TICK_RATE 1000000 + +#endif diff --git a/include/asm-arm/arch-msm/uncompress.h b/include/asm-arm/arch-msm/uncompress.h new file mode 100644 index 00000000000..e91ed786ffe --- /dev/null +++ b/include/asm-arm/arch-msm/uncompress.h @@ -0,0 +1,36 @@ +/* linux/include/asm-arm/arch-msm/uncompress.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_UNCOMPRESS_H + +#include "hardware.h" + +static void putc(int c) +{ +} + +static inline void flush(void) +{ +} + +static inline void arch_decomp_setup(void) +{ +} + +static inline void arch_decomp_wdog(void) +{ +} + +#endif diff --git a/include/asm-arm/arch-msm/vmalloc.h b/include/asm-arm/arch-msm/vmalloc.h new file mode 100644 index 00000000000..60f8d910e82 --- /dev/null +++ b/include/asm-arm/arch-msm/vmalloc.h @@ -0,0 +1,22 @@ +/* linux/include/asm-arm/arch-msm/vmalloc.h + * + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_VMALLOC_H +#define __ASM_ARCH_MSM_VMALLOC_H + +#define VMALLOC_END (PAGE_OFFSET + 0x10000000) + +#endif + diff --git a/include/asm-arm/arch-pxa/i2c.h b/include/asm-arm/arch-pxa/i2c.h index e404b233d8a..80596b01344 100644 --- a/include/asm-arm/arch-pxa/i2c.h +++ b/include/asm-arm/arch-pxa/i2c.h @@ -65,7 +65,13 @@ struct i2c_pxa_platform_data { unsigned int slave_addr; struct i2c_slave_client *slave; unsigned int class; + int use_pio; }; extern void pxa_set_i2c_info(struct i2c_pxa_platform_data *info); + +#ifdef CONFIG_PXA27x +extern void pxa_set_i2c_power_info(struct i2c_pxa_platform_data *info); +#endif + #endif diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S index 9c8cd9abb82..89076c32272 100644 --- a/include/asm-arm/arch-s3c2410/debug-macro.S +++ b/include/asm-arm/arch-s3c2410/debug-macro.S @@ -92,11 +92,9 @@ #if defined(CONFIG_CPU_LLSERIAL_S3C2410_ONLY) #define fifo_full fifo_full_s3c2410 #define fifo_level fifo_level_s3c2410 -#warning 2410only #elif !defined(CONFIG_CPU_LLSERIAL_S3C2440_ONLY) #define fifo_full fifo_full_s3c24xx #define fifo_level fifo_level_s3c24xx -#warning generic #endif /* include the reset of the code which will do the work */ diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h index c6e8d8f6493..4f291d9b7d9 100644 --- a/include/asm-arm/arch-s3c2410/dma.h +++ b/include/asm-arm/arch-s3c2410/dma.h @@ -214,6 +214,7 @@ struct s3c2410_dma_chan { unsigned long dev_addr; unsigned long load_timeout; unsigned int flags; /* channel flags */ + unsigned int hw_cfg; /* last hw config */ struct s3c24xx_dma_map *map; /* channel hw maps */ diff --git a/include/asm-arm/arch-s3c2410/hardware.h b/include/asm-arm/arch-s3c2410/hardware.h index 6dadf58ff98..29592c3ebf2 100644 --- a/include/asm-arm/arch-s3c2410/hardware.h +++ b/include/asm-arm/arch-s3c2410/hardware.h @@ -50,6 +50,17 @@ extern unsigned int s3c2410_gpio_getcfg(unsigned int pin); extern int s3c2410_gpio_getirq(unsigned int pin); +/* s3c2410_gpio_irq2pin + * + * turn the given irq number into the corresponding GPIO number + * + * returns: + * < 0 = no pin + * >=0 = gpio pin number +*/ + +extern int s3c2410_gpio_irq2pin(unsigned int irq); + #ifdef CONFIG_CPU_S3C2400 extern int s3c2400_gpio_getirq(unsigned int pin); @@ -87,6 +98,18 @@ extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on, extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to); +/* s3c2410_gpio_getpull + * + * Read the state of the pull-up on a given pin + * + * return: + * < 0 => error code + * 0 => enabled + * 1 => disabled +*/ + +extern int s3c2410_gpio_getpull(unsigned int pin); + extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to); extern unsigned int s3c2410_gpio_getpin(unsigned int pin); @@ -99,6 +122,11 @@ extern int s3c2440_set_dsc(unsigned int pin, unsigned int value); #endif /* CONFIG_CPU_S3C2440 */ +#ifdef CONFIG_CPU_S3C2412 + +extern int s3c2412_gpio_set_sleepcfg(unsigned int pin, unsigned int state); + +#endif /* CONFIG_CPU_S3C2412 */ #endif /* __ASSEMBLY__ */ diff --git a/include/asm-arm/arch-s3c2410/irqs.h b/include/asm-arm/arch-s3c2410/irqs.h index 996f65488d2..d858b3eb554 100644 --- a/include/asm-arm/arch-s3c2410/irqs.h +++ b/include/asm-arm/arch-s3c2410/irqs.h @@ -160,4 +160,7 @@ #define NR_IRQS (IRQ_S3C2440_AC97+1) #endif +/* Our FIQs are routable from IRQ_EINT0 to IRQ_ADCPARENT */ +#define FIQ_START IRQ_EINT0 + #endif /* __ASM_ARCH_IRQ_H */ diff --git a/include/asm-arm/arch-s3c2410/regs-clock.h b/include/asm-arm/arch-s3c2410/regs-clock.h index e39656b7a08..dba9df9d871 100644 --- a/include/asm-arm/arch-s3c2410/regs-clock.h +++ b/include/asm-arm/arch-s3c2410/regs-clock.h @@ -138,6 +138,8 @@ s3c2410_get_pll(unsigned int pllval, unsigned int baseclk) #define S3C2412_CLKDIVN_PDIVN (1<<2) #define S3C2412_CLKDIVN_HDIVN_MASK (3<<0) #define S3C2421_CLKDIVN_ARMDIVN (1<<3) +#define S3C2412_CLKDIVN_DVSEN (1<<4) +#define S3C2412_CLKDIVN_HALFHCLK (1<<5) #define S3C2412_CLKDIVN_USB48DIV (1<<6) #define S3C2412_CLKDIVN_UARTDIV_MASK (15<<8) #define S3C2412_CLKDIVN_UARTDIV_SHIFT (8) diff --git a/include/asm-arm/arch-s3c2410/regs-dsc.h b/include/asm-arm/arch-s3c2410/regs-dsc.h index c0748511edb..1235df70f34 100644 --- a/include/asm-arm/arch-s3c2410/regs-dsc.h +++ b/include/asm-arm/arch-s3c2410/regs-dsc.h @@ -19,7 +19,7 @@ #define S3C2412_DSC1 S3C2410_GPIOREG(0xe0) #endif -#if defined(CONFIG_CPU_S3C2440) +#if defined(CONFIG_CPU_S3C244X) #define S3C2440_DSC0 S3C2410_GPIOREG(0xc4) #define S3C2440_DSC1 S3C2410_GPIOREG(0xc8) diff --git a/include/asm-arm/arch-s3c2410/regs-gpio.h b/include/asm-arm/arch-s3c2410/regs-gpio.h index b693158b2d3..0ad75d716de 100644 --- a/include/asm-arm/arch-s3c2410/regs-gpio.h +++ b/include/asm-arm/arch-s3c2410/regs-gpio.h @@ -1133,12 +1133,16 @@ #define S3C2412_GPBSLPCON S3C2410_GPIOREG(0x1C) #define S3C2412_GPCSLPCON S3C2410_GPIOREG(0x2C) #define S3C2412_GPDSLPCON S3C2410_GPIOREG(0x3C) -#define S3C2412_GPESLPCON S3C2410_GPIOREG(0x4C) #define S3C2412_GPFSLPCON S3C2410_GPIOREG(0x5C) #define S3C2412_GPGSLPCON S3C2410_GPIOREG(0x6C) #define S3C2412_GPHSLPCON S3C2410_GPIOREG(0x7C) /* definitions for each pin bit */ +#define S3C2412_GPIO_SLPCON_LOW ( 0x00 ) +#define S3C2412_GPIO_SLPCON_HIGH ( 0x01 ) +#define S3C2412_GPIO_SLPCON_IN ( 0x02 ) +#define S3C2412_GPIO_SLPCON_PULL ( 0x03 ) + #define S3C2412_SLPCON_LOW(x) ( 0x00 << ((x) * 2)) #define S3C2412_SLPCON_HIGH(x) ( 0x01 << ((x) * 2)) #define S3C2412_SLPCON_IN(x) ( 0x02 << ((x) * 2)) diff --git a/include/asm-arm/arch-s3c2410/regs-mem.h b/include/asm-arm/arch-s3c2410/regs-mem.h index e4d82341f7b..312ff93b63c 100644 --- a/include/asm-arm/arch-s3c2410/regs-mem.h +++ b/include/asm-arm/arch-s3c2410/regs-mem.h @@ -98,16 +98,19 @@ #define S3C2410_BANKCON_Tacp3 (0x1 << 2) #define S3C2410_BANKCON_Tacp4 (0x2 << 2) #define S3C2410_BANKCON_Tacp6 (0x3 << 2) +#define S3C2410_BANKCON_Tacp_SHIFT (2) #define S3C2410_BANKCON_Tcah0 (0x0 << 4) #define S3C2410_BANKCON_Tcah1 (0x1 << 4) #define S3C2410_BANKCON_Tcah2 (0x2 << 4) #define S3C2410_BANKCON_Tcah4 (0x3 << 4) +#define S3C2410_BANKCON_Tcah_SHIFT (4) #define S3C2410_BANKCON_Tcoh0 (0x0 << 6) #define S3C2410_BANKCON_Tcoh1 (0x1 << 6) #define S3C2410_BANKCON_Tcoh2 (0x2 << 6) #define S3C2410_BANKCON_Tcoh4 (0x3 << 6) +#define S3C2410_BANKCON_Tcoh_SHIFT (6) #define S3C2410_BANKCON_Tacc1 (0x0 << 8) #define S3C2410_BANKCON_Tacc2 (0x1 << 8) @@ -117,16 +120,19 @@ #define S3C2410_BANKCON_Tacc8 (0x5 << 8) #define S3C2410_BANKCON_Tacc10 (0x6 << 8) #define S3C2410_BANKCON_Tacc14 (0x7 << 8) +#define S3C2410_BANKCON_Tacc_SHIFT (8) #define S3C2410_BANKCON_Tcos0 (0x0 << 11) #define S3C2410_BANKCON_Tcos1 (0x1 << 11) #define S3C2410_BANKCON_Tcos2 (0x2 << 11) #define S3C2410_BANKCON_Tcos4 (0x3 << 11) +#define S3C2410_BANKCON_Tcos_SHIFT (11) #define S3C2410_BANKCON_Tacs0 (0x0 << 13) #define S3C2410_BANKCON_Tacs1 (0x1 << 13) #define S3C2410_BANKCON_Tacs2 (0x2 << 13) #define S3C2410_BANKCON_Tacs4 (0x3 << 13) +#define S3C2410_BANKCON_Tacs_SHIFT (13) #define S3C2410_BANKCON_SRAM (0x0 << 15) #define S3C2400_BANKCON_EDODRAM (0x2 << 15) diff --git a/include/asm-arm/arch-s3c2410/regs-power.h b/include/asm-arm/arch-s3c2410/regs-power.h index f79987be55e..13d13b7cfe9 100644 --- a/include/asm-arm/arch-s3c2410/regs-power.h +++ b/include/asm-arm/arch-s3c2410/regs-power.h @@ -23,7 +23,8 @@ #define S3C2412_INFORM2 S3C24XX_PWRREG(0x78) #define S3C2412_INFORM3 S3C24XX_PWRREG(0x7C) -#define S3C2412_PWRCFG_BATF_IGNORE (0<<0) +#define S3C2412_PWRCFG_BATF_IRQ (1<<0) +#define S3C2412_PWRCFG_BATF_IGNORE (2<<0) #define S3C2412_PWRCFG_BATF_SLEEP (3<<0) #define S3C2412_PWRCFG_BATF_MASK (3<<0) diff --git a/include/asm-arm/arch-s3c2410/system.h b/include/asm-arm/arch-s3c2410/system.h index 63891786dfa..14de4e596f8 100644 --- a/include/asm-arm/arch-s3c2410/system.h +++ b/include/asm-arm/arch-s3c2410/system.h @@ -20,6 +20,9 @@ #include <asm/plat-s3c/regs-watchdog.h> #include <asm/arch/regs-clock.h> +#include <linux/clk.h> +#include <linux/err.h> + void (*s3c24xx_idle)(void); void (*s3c24xx_reset_hook)(void); @@ -59,6 +62,8 @@ static void arch_idle(void) static void arch_reset(char mode) { + struct clk *wdtclk; + if (mode == 's') { cpu_reset(0); } @@ -70,19 +75,28 @@ arch_reset(char mode) __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ + wdtclk = clk_get(NULL, "watchdog"); + if (!IS_ERR(wdtclk)) { + clk_enable(wdtclk); + } else + printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); + /* put initial values into count and data */ - __raw_writel(0x100, S3C2410_WTCNT); - __raw_writel(0x100, S3C2410_WTDAT); + __raw_writel(0x80, S3C2410_WTCNT); + __raw_writel(0x80, S3C2410_WTDAT); /* set the watchdog to go and reset... */ __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON); /* wait for reset to assert... */ - mdelay(5000); + mdelay(500); printk(KERN_ERR "Watchdog reset failed to assert reset\n"); + /* delay to allow the serial port to show the message */ + mdelay(50); + /* we'll take a jump through zero as a poor second */ cpu_reset(0); } diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h index f31cda5a55e..392eb533232 100644 --- a/include/asm-arm/fpstate.h +++ b/include/asm-arm/fpstate.h @@ -17,14 +17,18 @@ /* * VFP storage area has: * - FPEXC, FPSCR, FPINST and FPINST2. - * - 16 double precision data registers - * - an implementation-dependant word of state for FLDMX/FSTMX + * - 16 or 32 double precision data registers + * - an implementation-dependant word of state for FLDMX/FSTMX (pre-ARMv6) * * FPEXC will always be non-zero once the VFP has been used in this process. */ struct vfp_hard_struct { +#ifdef CONFIG_VFPv3 + __u64 fpregs[32]; +#else __u64 fpregs[16]; +#endif #if __LINUX_ARM_ARCH__ < 6 __u32 fpmx_state; #endif @@ -35,6 +39,7 @@ struct vfp_hard_struct { */ __u32 fpinst; __u32 fpinst2; + #ifdef CONFIG_SMP __u32 cpu; #endif diff --git a/include/asm-arm/kprobes.h b/include/asm-arm/kprobes.h new file mode 100644 index 00000000000..4e7bd32288a --- /dev/null +++ b/include/asm-arm/kprobes.h @@ -0,0 +1,79 @@ +/* + * include/asm-arm/kprobes.h + * + * Copyright (C) 2006, 2007 Motorola Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef _ARM_KPROBES_H +#define _ARM_KPROBES_H + +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/percpu.h> + +#define ARCH_SUPPORTS_KRETPROBES +#define __ARCH_WANT_KPROBES_INSN_SLOT +#define MAX_INSN_SIZE 2 +#define MAX_STACK_SIZE 64 /* 32 would probably be OK */ + +/* + * This undefined instruction must be unique and + * reserved solely for kprobes' use. + */ +#define KPROBE_BREAKPOINT_INSTRUCTION 0xe7f001f8 + +#define regs_return_value(regs) ((regs)->ARM_r0) +#define flush_insn_slot(p) do { } while (0) +#define kretprobe_blacklist_size 0 + +typedef u32 kprobe_opcode_t; + +struct kprobe; +typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *); + +/* Architecture specific copy of original instruction. */ +struct arch_specific_insn { + kprobe_opcode_t *insn; + kprobe_insn_handler_t *insn_handler; +}; + +struct prev_kprobe { + struct kprobe *kp; + unsigned int status; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned int kprobe_status; + struct prev_kprobe prev_kprobe; + struct pt_regs jprobe_saved_regs; + char jprobes_stack[MAX_STACK_SIZE]; +}; + +void arch_remove_kprobe(struct kprobe *); + +int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr); +int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr); +int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); + +enum kprobe_insn { + INSN_REJECTED, + INSN_GOOD, + INSN_GOOD_NO_SLOT +}; + +enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t, + struct arch_specific_insn *); +void __init arm_kprobe_decode_init(void); + +#endif /* _ARM_KPROBES_H */ diff --git a/include/asm-arm/plat-s3c24xx/dma.h b/include/asm-arm/plat-s3c24xx/dma.h index 2c59406435e..c78efe316fc 100644 --- a/include/asm-arm/plat-s3c24xx/dma.h +++ b/include/asm-arm/plat-s3c24xx/dma.h @@ -32,6 +32,7 @@ struct s3c24xx_dma_map { struct s3c24xx_dma_addr hw_addr; unsigned long channels[S3C2410_DMA_CHANNELS]; + unsigned long channels_rx[S3C2410_DMA_CHANNELS]; }; struct s3c24xx_dma_selection { @@ -41,6 +42,10 @@ struct s3c24xx_dma_selection { void (*select)(struct s3c2410_dma_chan *chan, struct s3c24xx_dma_map *map); + + void (*direction)(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map, + enum s3c2410_dmasrc dir); }; extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); diff --git a/include/asm-arm/plat-s3c24xx/irq.h b/include/asm-arm/plat-s3c24xx/irq.h index 8af6d9579b3..45746a99534 100644 --- a/include/asm-arm/plat-s3c24xx/irq.h +++ b/include/asm-arm/plat-s3c24xx/irq.h @@ -15,7 +15,9 @@ #define EXTINT_OFF (IRQ_EINT4 - 4) +/* these are exported for arch/arm/mach-* usage */ extern struct irq_chip s3c_irq_level_chip; +extern struct irq_chip s3c_irq_chip; static inline void s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit, diff --git a/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h b/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h new file mode 100644 index 00000000000..25d4058bcfe --- /dev/null +++ b/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h @@ -0,0 +1,72 @@ +/* linux/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h + * + * Copyright 2007 Simtec Electronics <linux@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * S3C2412 IIS register definition +*/ + +#ifndef __ASM_ARCH_REGS_S3C2412_IIS_H +#define __ASM_ARCH_REGS_S3C2412_IIS_H + +#define S3C2412_IISCON (0x00) +#define S3C2412_IISMOD (0x04) +#define S3C2412_IISFIC (0x08) +#define S3C2412_IISPSR (0x0C) +#define S3C2412_IISTXD (0x10) +#define S3C2412_IISRXD (0x14) + +#define S3C2412_IISCON_LRINDEX (1 << 11) +#define S3C2412_IISCON_TXFIFO_EMPTY (1 << 10) +#define S3C2412_IISCON_RXFIFO_EMPTY (1 << 9) +#define S3C2412_IISCON_TXFIFO_FULL (1 << 8) +#define S3C2412_IISCON_RXFIFO_FULL (1 << 7) +#define S3C2412_IISCON_TXDMA_PAUSE (1 << 6) +#define S3C2412_IISCON_RXDMA_PAUSE (1 << 5) +#define S3C2412_IISCON_TXCH_PAUSE (1 << 4) +#define S3C2412_IISCON_RXCH_PAUSE (1 << 3) +#define S3C2412_IISCON_TXDMA_ACTIVE (1 << 2) +#define S3C2412_IISCON_RXDMA_ACTIVE (1 << 1) +#define S3C2412_IISCON_IIS_ACTIVE (1 << 0) + +#define S3C2412_IISMOD_MASTER_INTERNAL (0 << 10) +#define S3C2412_IISMOD_MASTER_EXTERNAL (1 << 10) +#define S3C2412_IISMOD_SLAVE (2 << 10) +#define S3C2412_IISMOD_MASTER_MASK (3 << 10) +#define S3C2412_IISMOD_MODE_TXONLY (0 << 8) +#define S3C2412_IISMOD_MODE_RXONLY (1 << 8) +#define S3C2412_IISMOD_MODE_TXRX (2 << 8) +#define S3C2412_IISMOD_MODE_MASK (3 << 8) +#define S3C2412_IISMOD_LR_LLOW (0 << 7) +#define S3C2412_IISMOD_LR_RLOW (1 << 7) +#define S3C2412_IISMOD_SDF_IIS (0 << 5) +#define S3C2412_IISMOD_SDF_MSB (0 << 5) +#define S3C2412_IISMOD_SDF_LSB (0 << 5) +#define S3C2412_IISMOD_SDF_MASK (3 << 5) +#define S3C2412_IISMOD_RCLK_256FS (0 << 3) +#define S3C2412_IISMOD_RCLK_512FS (1 << 3) +#define S3C2412_IISMOD_RCLK_384FS (2 << 3) +#define S3C2412_IISMOD_RCLK_768FS (3 << 3) +#define S3C2412_IISMOD_RCLK_MASK (3 << 3) +#define S3C2412_IISMOD_BCLK_32FS (0 << 1) +#define S3C2412_IISMOD_BCLK_48FS (1 << 1) +#define S3C2412_IISMOD_BCLK_16FS (2 << 1) +#define S3C2412_IISMOD_BCLK_24FS (3 << 1) +#define S3C2412_IISMOD_BCLK_MASK (3 << 1) +#define S3C2412_IISMOD_8BIT (1 << 0) + +#define S3C2412_IISPSR_PSREN (1 << 15) + +#define S3C2412_IISFIC_TXFLUSH (1 << 15) +#define S3C2412_IISFIC_RXFLUSH (1 << 7) +#define S3C2412_IISFIC_TXCOUNT(x) (((x) >> 8) & 0xf) +#define S3C2412_IISFIC_RXCOUNT(x) (((x) >> 0) & 0xf) + + + +#endif /* __ASM_ARCH_REGS_S3C2412_IIS_H */ + diff --git a/include/asm-arm/plat-s3c24xx/regs-spi.h b/include/asm-arm/plat-s3c24xx/regs-spi.h index 4a499a13825..ea565b007d0 100644 --- a/include/asm-arm/plat-s3c24xx/regs-spi.h +++ b/include/asm-arm/plat-s3c24xx/regs-spi.h @@ -17,6 +17,21 @@ #define S3C2410_SPCON (0x00) +#define S3C2412_SPCON_RXFIFO_RB2 (0<<14) +#define S3C2412_SPCON_RXFIFO_RB4 (1<<14) +#define S3C2412_SPCON_RXFIFO_RB12 (2<<14) +#define S3C2412_SPCON_RXFIFO_RB14 (3<<14) +#define S3C2412_SPCON_TXFIFO_RB2 (0<<12) +#define S3C2412_SPCON_TXFIFO_RB4 (1<<12) +#define S3C2412_SPCON_TXFIFO_RB12 (2<<12) +#define S3C2412_SPCON_TXFIFO_RB14 (3<<12) +#define S3C2412_SPCON_RXFIFO_RESET (1<<11) /* RxFIFO reset */ +#define S3C2412_SPCON_TXFIFO_RESET (1<<10) /* TxFIFO reset */ +#define S3C2412_SPCON_RXFIFO_EN (1<<9) /* RxFIFO Enable */ +#define S3C2412_SPCON_TXFIFO_EN (1<<8) /* TxFIFO Enable */ + +#define S3C2412_SPCON_DIRC_RX (1<<7) + #define S3C2410_SPCON_SMOD_DMA (2<<5) /* DMA mode */ #define S3C2410_SPCON_SMOD_INT (1<<5) /* interrupt mode */ #define S3C2410_SPCON_SMOD_POLL (0<<5) /* polling mode */ @@ -34,10 +49,19 @@ #define S3C2410_SPSTA (0x04) +#define S3C2412_SPSTA_RXFIFO_AE (1<<11) +#define S3C2412_SPSTA_TXFIFO_AE (1<<10) +#define S3C2412_SPSTA_RXFIFO_ERROR (1<<9) +#define S3C2412_SPSTA_TXFIFO_ERROR (1<<8) +#define S3C2412_SPSTA_RXFIFO_FIFO (1<<7) +#define S3C2412_SPSTA_RXFIFO_EMPTY (1<<6) +#define S3C2412_SPSTA_TXFIFO_NFULL (1<<5) +#define S3C2412_SPSTA_TXFIFO_EMPTY (1<<4) + #define S3C2410_SPSTA_DCOL (1<<2) /* Data Collision Error */ #define S3C2410_SPSTA_MULD (1<<1) /* Multi Master Error */ #define S3C2410_SPSTA_READY (1<<0) /* Data Tx/Rx ready */ - +#define S3C2412_SPSTA_READY_ORG (1<<3) #define S3C2410_SPPIN (0x08) @@ -46,9 +70,13 @@ #define S3C2400_SPPIN_nCS (1<<1) /* SPI Card Select */ #define S3C2410_SPPIN_KEEP (1<<0) /* Master Out keep */ - #define S3C2410_SPPRE (0x0C) #define S3C2410_SPTDAT (0x10) #define S3C2410_SPRDAT (0x14) +#define S3C2412_TXFIFO (0x18) +#define S3C2412_RXFIFO (0x18) +#define S3C2412_SPFIC (0x24) + + #endif /* __ASM_ARCH_REGS_SPI_H */ diff --git a/include/asm-arm/traps.h b/include/asm-arm/traps.h index d4f34dc83eb..f1541afcf85 100644 --- a/include/asm-arm/traps.h +++ b/include/asm-arm/traps.h @@ -15,4 +15,13 @@ struct undef_hook { void register_undef_hook(struct undef_hook *hook); void unregister_undef_hook(struct undef_hook *hook); +static inline int in_exception_text(unsigned long ptr) +{ + extern char __exception_text_start[]; + extern char __exception_text_end[]; + + return ptr >= (unsigned long)&__exception_text_start && + ptr < (unsigned long)&__exception_text_end; +} + #endif diff --git a/include/asm-arm/vfp.h b/include/asm-arm/vfp.h index bd6be9d7f77..5f9a2cb3d45 100644 --- a/include/asm-arm/vfp.h +++ b/include/asm-arm/vfp.h @@ -7,7 +7,11 @@ #define FPSID cr0 #define FPSCR cr1 +#define MVFR1 cr6 +#define MVFR0 cr7 #define FPEXC cr8 +#define FPINST cr9 +#define FPINST2 cr10 /* FPSID bits */ #define FPSID_IMPLEMENTER_BIT (24) @@ -28,6 +32,19 @@ /* FPEXC bits */ #define FPEXC_EX (1 << 31) #define FPEXC_EN (1 << 30) +#define FPEXC_DEX (1 << 29) +#define FPEXC_FP2V (1 << 28) +#define FPEXC_VV (1 << 27) +#define FPEXC_TFV (1 << 26) +#define FPEXC_LENGTH_BIT (8) +#define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT) +#define FPEXC_IDF (1 << 7) +#define FPEXC_IXF (1 << 4) +#define FPEXC_UFF (1 << 3) +#define FPEXC_OFF (1 << 2) +#define FPEXC_DZF (1 << 1) +#define FPEXC_IOF (1 << 0) +#define FPEXC_TRAP_MASK (FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF) /* FPSCR bits */ #define FPSCR_DEFAULT_NAN (1<<25) @@ -55,20 +72,9 @@ #define FPSCR_IXC (1<<4) #define FPSCR_IDC (1<<7) -/* - * VFP9-S specific. - */ -#define FPINST cr9 -#define FPINST2 cr10 - -/* FPEXC bits */ -#define FPEXC_FPV2 (1<<28) -#define FPEXC_LENGTH_BIT (8) -#define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT) -#define FPEXC_INV (1 << 7) -#define FPEXC_UFC (1 << 3) -#define FPEXC_OFC (1 << 2) -#define FPEXC_IOC (1 << 0) +/* MVFR0 bits */ +#define MVFR0_A_SIMD_BIT (0) +#define MVFR0_A_SIMD_MASK (0xf << MVFR0_A_SIMD_BIT) /* Bit patterns for decoding the packaged operation descriptors */ #define VFPOPDESC_LENGTH_BIT (9) diff --git a/include/asm-arm/vfpmacros.h b/include/asm-arm/vfpmacros.h index 27fe028b4e7..cccb3892e73 100644 --- a/include/asm-arm/vfpmacros.h +++ b/include/asm-arm/vfpmacros.h @@ -15,19 +15,33 @@ .endm @ read all the working registers back into the VFP - .macro VFPFLDMIA, base + .macro VFPFLDMIA, base, tmp #if __LINUX_ARM_ARCH__ < 6 LDC p11, cr0, [\base],#33*4 @ FLDMIAX \base!, {d0-d15} #else LDC p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d0-d15} #endif +#ifdef CONFIG_VFPv3 + VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 + and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field + cmp \tmp, #2 @ 32 x 64bit registers? + ldceql p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31} + addne \base, \base, #32*4 @ step over unused register space +#endif .endm @ write all the working registers out of the VFP - .macro VFPFSTMIA, base + .macro VFPFSTMIA, base, tmp #if __LINUX_ARM_ARCH__ < 6 STC p11, cr0, [\base],#33*4 @ FSTMIAX \base!, {d0-d15} #else STC p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d0-d15} #endif +#ifdef CONFIG_VFPv3 + VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 + and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field + cmp \tmp, #2 @ 32 x 64bit registers? + stceql p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31} + addne \base, \base, #32*4 @ step over unused register space +#endif .endm diff --git a/include/asm-avr32/arch-at32ap/cpu.h b/include/asm-avr32/arch-at32ap/cpu.h index 0dc20261c1e..44d0bfa1f40 100644 --- a/include/asm-avr32/arch-at32ap/cpu.h +++ b/include/asm-avr32/arch-at32ap/cpu.h @@ -30,5 +30,6 @@ #define cpu_is_at91sam9261() (0) #define cpu_is_at91sam9263() (0) #define cpu_is_at91sam9rl() (0) +#define cpu_is_at91cap9() (0) #endif /* __ASM_ARCH_CPU_H */ diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h index 39bdd86871c..6ae0619d769 100644 --- a/include/asm-blackfin/bfin-global.h +++ b/include/asm-blackfin/bfin-global.h @@ -51,7 +51,7 @@ extern unsigned long sclk_to_usecs(unsigned long sclk); extern unsigned long usecs_to_sclk(unsigned long usecs); extern void dump_bfin_process(struct pt_regs *regs); -extern void dump_bfin_mem(void *retaddr); +extern void dump_bfin_mem(struct pt_regs *regs); extern void dump_bfin_trace_buffer(void); extern int init_arch_irq(void); diff --git a/include/asm-blackfin/cplb-mpu.h b/include/asm-blackfin/cplb-mpu.h new file mode 100644 index 00000000000..75c67b99d60 --- /dev/null +++ b/include/asm-blackfin/cplb-mpu.h @@ -0,0 +1,61 @@ +/* + * File: include/asm-blackfin/cplbinit.h + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#ifndef __ASM_BFIN_CPLB_MPU_H +#define __ASM_BFIN_CPLB_MPU_H + +struct cplb_entry { + unsigned long data, addr; +}; + +struct mem_region { + unsigned long start, end; + unsigned long dcplb_data; + unsigned long icplb_data; +}; + +extern struct cplb_entry dcplb_tbl[MAX_CPLBS]; +extern struct cplb_entry icplb_tbl[MAX_CPLBS]; +extern int first_switched_icplb; +extern int first_mask_dcplb; +extern int first_switched_dcplb; + +extern int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot; +extern int nr_cplb_flush; + +extern int page_mask_order; +extern int page_mask_nelts; + +extern unsigned long *current_rwx_mask; + +extern void flush_switched_cplbs(void); +extern void set_mask_dcplbs(unsigned long *); + +extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *); + +#endif /* __ASM_BFIN_CPLB_MPU_H */ diff --git a/include/asm-blackfin/cplb.h b/include/asm-blackfin/cplb.h index 06828d77a58..654375c2b74 100644 --- a/include/asm-blackfin/cplb.h +++ b/include/asm-blackfin/cplb.h @@ -65,7 +65,11 @@ #define SIZE_1M 0x00100000 /* 1M */ #define SIZE_4M 0x00400000 /* 4M */ +#ifdef CONFIG_MPU +#define MAX_CPLBS 16 +#else #define MAX_CPLBS (16 * 2) +#endif #define ASYNC_MEMORY_CPLB_COVERAGE ((ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \ ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE) / SIZE_4M) diff --git a/include/asm-blackfin/cplbinit.h b/include/asm-blackfin/cplbinit.h index c4d0596e8e9..0eb1c1b685a 100644 --- a/include/asm-blackfin/cplbinit.h +++ b/include/asm-blackfin/cplbinit.h @@ -33,6 +33,12 @@ #include <asm/blackfin.h> #include <asm/cplb.h> +#ifdef CONFIG_MPU + +#include <asm/cplb-mpu.h> + +#else + #define INITIAL_T 0x1 #define SWITCH_T 0x2 #define I_CPLB 0x4 @@ -79,6 +85,8 @@ extern u_long ipdt_swapcount_table[]; extern u_long dpdt_swapcount_table[]; #endif +#endif /* CONFIG_MPU */ + extern unsigned long reserved_mem_dcache_on; extern unsigned long reserved_mem_icache_on; diff --git a/include/asm-blackfin/dma.h b/include/asm-blackfin/dma.h index b469505af36..5abaa2cee8d 100644 --- a/include/asm-blackfin/dma.h +++ b/include/asm-blackfin/dma.h @@ -76,6 +76,9 @@ enum dma_chan_status { #define INTR_ON_BUF 2 #define INTR_ON_ROW 3 +#define DMA_NOSYNC_KEEP_DMA_BUF 0 +#define DMA_SYNC_RESTART 1 + struct dmasg { unsigned long next_desc_addr; unsigned long start_addr; @@ -157,7 +160,8 @@ void set_dma_y_count(unsigned int channel, unsigned short y_count); void set_dma_y_modify(unsigned int channel, short y_modify); void set_dma_config(unsigned int channel, unsigned short config); unsigned short set_bfin_dma_config(char direction, char flow_mode, - char intr_mode, char dma_mode, char width); + char intr_mode, char dma_mode, char width, + char syncmode); void set_dma_curr_addr(unsigned int channel, unsigned long addr); /* get curr status for polling */ diff --git a/include/asm-blackfin/gpio.h b/include/asm-blackfin/gpio.h index 33ce98ef7e0..d0426c10826 100644 --- a/include/asm-blackfin/gpio.h +++ b/include/asm-blackfin/gpio.h @@ -7,7 +7,7 @@ * Description: * * Modified: - * Copyright 2004-2006 Analog Devices Inc. + * Copyright 2004-2008 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -304,39 +304,39 @@ **************************************************************/ #ifndef BF548_FAMILY -void set_gpio_dir(unsigned short, unsigned short); -void set_gpio_inen(unsigned short, unsigned short); -void set_gpio_polar(unsigned short, unsigned short); -void set_gpio_edge(unsigned short, unsigned short); -void set_gpio_both(unsigned short, unsigned short); -void set_gpio_data(unsigned short, unsigned short); -void set_gpio_maska(unsigned short, unsigned short); -void set_gpio_maskb(unsigned short, unsigned short); -void set_gpio_toggle(unsigned short); -void set_gpiop_dir(unsigned short, unsigned short); -void set_gpiop_inen(unsigned short, unsigned short); -void set_gpiop_polar(unsigned short, unsigned short); -void set_gpiop_edge(unsigned short, unsigned short); -void set_gpiop_both(unsigned short, unsigned short); -void set_gpiop_data(unsigned short, unsigned short); -void set_gpiop_maska(unsigned short, unsigned short); -void set_gpiop_maskb(unsigned short, unsigned short); -unsigned short get_gpio_dir(unsigned short); -unsigned short get_gpio_inen(unsigned short); -unsigned short get_gpio_polar(unsigned short); -unsigned short get_gpio_edge(unsigned short); -unsigned short get_gpio_both(unsigned short); -unsigned short get_gpio_maska(unsigned short); -unsigned short get_gpio_maskb(unsigned short); -unsigned short get_gpio_data(unsigned short); -unsigned short get_gpiop_dir(unsigned short); -unsigned short get_gpiop_inen(unsigned short); -unsigned short get_gpiop_polar(unsigned short); -unsigned short get_gpiop_edge(unsigned short); -unsigned short get_gpiop_both(unsigned short); -unsigned short get_gpiop_maska(unsigned short); -unsigned short get_gpiop_maskb(unsigned short); -unsigned short get_gpiop_data(unsigned short); +void set_gpio_dir(unsigned, unsigned short); +void set_gpio_inen(unsigned, unsigned short); +void set_gpio_polar(unsigned, unsigned short); +void set_gpio_edge(unsigned, unsigned short); +void set_gpio_both(unsigned, unsigned short); +void set_gpio_data(unsigned, unsigned short); +void set_gpio_maska(unsigned, unsigned short); +void set_gpio_maskb(unsigned, unsigned short); +void set_gpio_toggle(unsigned); +void set_gpiop_dir(unsigned, unsigned short); +void set_gpiop_inen(unsigned, unsigned short); +void set_gpiop_polar(unsigned, unsigned short); +void set_gpiop_edge(unsigned, unsigned short); +void set_gpiop_both(unsigned, unsigned short); +void set_gpiop_data(unsigned, unsigned short); +void set_gpiop_maska(unsigned, unsigned short); +void set_gpiop_maskb(unsigned, unsigned short); +unsigned short get_gpio_dir(unsigned); +unsigned short get_gpio_inen(unsigned); +unsigned short get_gpio_polar(unsigned); +unsigned short get_gpio_edge(unsigned); +unsigned short get_gpio_both(unsigned); +unsigned short get_gpio_maska(unsigned); +unsigned short get_gpio_maskb(unsigned); +unsigned short get_gpio_data(unsigned); +unsigned short get_gpiop_dir(unsigned); +unsigned short get_gpiop_inen(unsigned); +unsigned short get_gpiop_polar(unsigned); +unsigned short get_gpiop_edge(unsigned); +unsigned short get_gpiop_both(unsigned); +unsigned short get_gpiop_maska(unsigned); +unsigned short get_gpiop_maskb(unsigned); +unsigned short get_gpiop_data(unsigned); struct gpio_port_t { unsigned short data; @@ -382,8 +382,8 @@ struct gpio_port_t { #define PM_WAKE_LOW 0x8 #define PM_WAKE_BOTH_EDGES (PM_WAKE_RISING | PM_WAKE_FALLING) -int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type); -void gpio_pm_wakeup_free(unsigned short gpio); +int gpio_pm_wakeup_request(unsigned gpio, unsigned char type); +void gpio_pm_wakeup_free(unsigned gpio); unsigned int gpio_pm_setup(void); void gpio_pm_restore(void); @@ -426,19 +426,19 @@ struct gpio_port_s { * MODIFICATION HISTORY : **************************************************************/ -int gpio_request(unsigned short, const char *); -void gpio_free(unsigned short); +int gpio_request(unsigned, const char *); +void gpio_free(unsigned); -void gpio_set_value(unsigned short gpio, unsigned short arg); -unsigned short gpio_get_value(unsigned short gpio); +void gpio_set_value(unsigned gpio, int arg); +int gpio_get_value(unsigned gpio); #ifndef BF548_FAMILY #define gpio_get_value(gpio) get_gpio_data(gpio) #define gpio_set_value(gpio, value) set_gpio_data(gpio, value) #endif -void gpio_direction_input(unsigned short gpio); -void gpio_direction_output(unsigned short gpio); +int gpio_direction_input(unsigned gpio); +int gpio_direction_output(unsigned gpio, int value); #include <asm-generic/gpio.h> /* cansleep wrappers */ #include <asm/irq.h> diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h index 0b867e6a76c..15dbc21eed8 100644 --- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h @@ -146,7 +146,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_output(uart->rts_pin); + gpio_direction_output(uart->rts_pin, 0); } #endif } diff --git a/include/asm-blackfin/mach-bf527/portmux.h b/include/asm-blackfin/mach-bf527/portmux.h index dcf001adc63..ae4d205bfcf 100644 --- a/include/asm-blackfin/mach-bf527/portmux.h +++ b/include/asm-blackfin/mach-bf527/portmux.h @@ -1,6 +1,8 @@ #ifndef _MACH_PORTMUX_H_ #define _MACH_PORTMUX_H_ +#define MAX_RESOURCES MAX_BLACKFIN_GPIOS + #define P_PPI0_D0 (P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(0)) #define P_PPI0_D1 (P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(0)) #define P_PPI0_D2 (P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(0)) diff --git a/include/asm-blackfin/mach-bf533/anomaly.h b/include/asm-blackfin/mach-bf533/anomaly.h index f36ff5af1b9..98209d40abb 100644 --- a/include/asm-blackfin/mach-bf533/anomaly.h +++ b/include/asm-blackfin/mach-bf533/anomaly.h @@ -7,9 +7,7 @@ */ /* This file shoule be up to date with: - * - Revision X, March 23, 2007; ADSP-BF533 Blackfin Processor Anomaly List - * - Revision AB, March 23, 2007; ADSP-BF532 Blackfin Processor Anomaly List - * - Revision W, March 23, 2007; ADSP-BF531 Blackfin Processor Anomaly List + * - Revision B, 12/10/2007; ADSP-BF531/BF532/BF533 Blackfin Processor Anomaly List */ #ifndef _MACH_ANOMALY_H_ @@ -17,7 +15,7 @@ /* We do not support 0.1 or 0.2 silicon - sorry */ #if __SILICON_REVISION__ < 3 -# error Kernel will not work on BF533 silicon version 0.0, 0.1, or 0.2 +# error will not work on BF533 silicon version 0.0, 0.1, or 0.2 #endif #if defined(__ADSPBF531__) @@ -251,6 +249,12 @@ #define ANOMALY_05000192 (__SILICON_REVISION__ < 3) /* Internal Voltage Regulator may not start up */ #define ANOMALY_05000206 (__SILICON_REVISION__ < 3) +/* Serial Port (SPORT) Multichannel Transmit Failure when Channel 0 Is Disabled */ +#define ANOMALY_05000357 (1) +/* PPI Underflow Error Goes Undetected in ITU-R 656 Mode */ +#define ANOMALY_05000366 (1) +/* Possible RETS Register Corruption when Subroutine Is under 5 Cycles in Duration */ +#define ANOMALY_05000371 (1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000266 (0) diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h index 69b9f8e120e..7871d4313f4 100644 --- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h @@ -111,7 +111,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) } if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_input(uart->rts_pin); + gpio_direction_input(uart->rts_pin, 0); } #endif } diff --git a/include/asm-blackfin/mach-bf533/portmux.h b/include/asm-blackfin/mach-bf533/portmux.h index 137f4884acf..685a2651dcd 100644 --- a/include/asm-blackfin/mach-bf533/portmux.h +++ b/include/asm-blackfin/mach-bf533/portmux.h @@ -1,6 +1,8 @@ #ifndef _MACH_PORTMUX_H_ #define _MACH_PORTMUX_H_ +#define MAX_RESOURCES MAX_BLACKFIN_GPIOS + #define P_PPI0_CLK (P_DONTCARE) #define P_PPI0_FS1 (P_DONTCARE) #define P_PPI0_FS2 (P_DONTCARE) diff --git a/include/asm-blackfin/mach-bf537/anomaly.h b/include/asm-blackfin/mach-bf537/anomaly.h index 2b66ecf489f..746a794b311 100644 --- a/include/asm-blackfin/mach-bf537/anomaly.h +++ b/include/asm-blackfin/mach-bf537/anomaly.h @@ -7,9 +7,7 @@ */ /* This file shoule be up to date with: - * - Revision M, March 13, 2007; ADSP-BF537 Blackfin Processor Anomaly List - * - Revision L, March 13, 2007; ADSP-BF536 Blackfin Processor Anomaly List - * - Revision M, March 13, 2007; ADSP-BF534 Blackfin Processor Anomaly List + * - Revision A, 09/04/2007; ADSP-BF534/ADSP-BF536/ADSP-BF537 Blackfin Processor Anomaly List */ #ifndef _MACH_ANOMALY_H_ @@ -17,7 +15,7 @@ /* We do not support 0.1 silicon - sorry */ #if __SILICON_REVISION__ < 2 -# error Kernel will not work on BF537 silicon version 0.0 or 0.1 +# error will not work on BF537 silicon version 0.0 or 0.1 #endif #if defined(__ADSPBF534__) @@ -44,6 +42,8 @@ #define ANOMALY_05000122 (1) /* Killed 32-bit MMR write leads to next system MMR access thinking it should be 32-bit */ #define ANOMALY_05000157 (__SILICON_REVISION__ < 2) +/* Turning SPORTs on while External Frame Sync Is Active May Corrupt Data */ +#define ANOMALY_05000167 (1) /* PPI_DELAY not functional in PPI modes with 0 frame syncs */ #define ANOMALY_05000180 (1) /* Instruction Cache Is Not Functional */ @@ -130,6 +130,12 @@ #define ANOMALY_05000321 (__SILICON_REVISION__ < 3) /* EMAC RMII mode at 10-Base-T speed: RX frames not received properly */ #define ANOMALY_05000322 (1) +/* Ethernet MAC MDIO Reads Do Not Meet IEEE Specification */ +#define ANOMALY_05000341 (__SILICON_REVISION__ >= 3) +/* Serial Port (SPORT) Multichannel Transmit Failure when Channel 0 Is Disabled */ +#define ANOMALY_05000357 (1) +/* DMAs that Go Urgent during Tight Core Writes to External Memory Are Blocked */ +#define ANOMALY_05000359 (1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000125 (0) diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h index 6fb328f5186..86e45c37983 100644 --- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h @@ -146,7 +146,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_output(uart->rts_pin); + gpio_direction_output(uart->rts_pin, 0); } #endif } diff --git a/include/asm-blackfin/mach-bf537/portmux.h b/include/asm-blackfin/mach-bf537/portmux.h index 5a3f7d3bf73..78fee6e0f23 100644 --- a/include/asm-blackfin/mach-bf537/portmux.h +++ b/include/asm-blackfin/mach-bf537/portmux.h @@ -1,6 +1,8 @@ #ifndef _MACH_PORTMUX_H_ #define _MACH_PORTMUX_H_ +#define MAX_RESOURCES (MAX_BLACKFIN_GPIOS + GPIO_BANKSIZE) /* We additionally handle PORTJ */ + #define P_UART0_TX (P_DEFINED | P_IDENT(GPIO_PF0) | P_FUNCT(0)) #define P_UART0_RX (P_DEFINED | P_IDENT(GPIO_PF1) | P_FUNCT(0)) #define P_UART1_TX (P_DEFINED | P_IDENT(GPIO_PF2) | P_FUNCT(0)) diff --git a/include/asm-blackfin/mach-bf548/anomaly.h b/include/asm-blackfin/mach-bf548/anomaly.h index c5b63759cde..850dc12eb7f 100644 --- a/include/asm-blackfin/mach-bf548/anomaly.h +++ b/include/asm-blackfin/mach-bf548/anomaly.h @@ -7,7 +7,7 @@ */ /* This file shoule be up to date with: - * - Revision C, July 16, 2007; ADSP-BF549 Silicon Anomaly List + * - Revision E, 11/28/2007; ADSP-BF542/BF544/BF547/BF548/BF549 Blackfin Processor Anomaly List */ #ifndef _MACH_ANOMALY_H_ @@ -26,47 +26,59 @@ /* Certain Data Cache Writethrough Modes Fail for Vddint <= 0.9V */ #define ANOMALY_05000272 (1) /* False Hardware Error Exception when ISR context is not restored */ -#define ANOMALY_05000281 (1) +#define ANOMALY_05000281 (__SILICON_REVISION__ < 1) /* SSYNCs After Writes To CAN/DMA MMR Registers Are Not Always Handled Correctly */ -#define ANOMALY_05000304 (1) +#define ANOMALY_05000304 (__SILICON_REVISION__ < 1) /* False Hardware Errors Caused by Fetches at the Boundary of Reserved Memory */ #define ANOMALY_05000310 (1) /* Errors When SSYNC, CSYNC, or Loads to LT, LB and LC Registers Are Interrupted */ -#define ANOMALY_05000312 (1) +#define ANOMALY_05000312 (__SILICON_REVISION__ < 1) /* TWI Slave Boot Mode Is Not Functional */ -#define ANOMALY_05000324 (1) +#define ANOMALY_05000324 (__SILICON_REVISION__ < 1) /* External FIFO Boot Mode Is Not Functional */ -#define ANOMALY_05000325 (1) +#define ANOMALY_05000325 (__SILICON_REVISION__ < 1) /* Data Lost When Core and DMA Accesses Are Made to the USB FIFO Simultaneously */ -#define ANOMALY_05000327 (1) +#define ANOMALY_05000327 (__SILICON_REVISION__ < 1) /* Incorrect Access of OTP_STATUS During otp_write() Function */ -#define ANOMALY_05000328 (1) +#define ANOMALY_05000328 (__SILICON_REVISION__ < 1) /* Synchronous Burst Flash Boot Mode Is Not Functional */ -#define ANOMALY_05000329 (1) +#define ANOMALY_05000329 (__SILICON_REVISION__ < 1) /* Host DMA Boot Mode Is Not Functional */ -#define ANOMALY_05000330 (1) +#define ANOMALY_05000330 (__SILICON_REVISION__ < 1) /* Inadequate Timing Margins on DDR DQS to DQ and DQM Skew */ -#define ANOMALY_05000334 (1) +#define ANOMALY_05000334 (__SILICON_REVISION__ < 1) /* Inadequate Rotary Debounce Logic Duration */ -#define ANOMALY_05000335 (1) +#define ANOMALY_05000335 (__SILICON_REVISION__ < 1) /* Phantom Interrupt Occurs After First Configuration of Host DMA Port */ -#define ANOMALY_05000336 (1) +#define ANOMALY_05000336 (__SILICON_REVISION__ < 1) /* Disallowed Configuration Prevents Subsequent Allowed Configuration on Host DMA Port */ -#define ANOMALY_05000337 (1) +#define ANOMALY_05000337 (__SILICON_REVISION__ < 1) /* Slave-Mode SPI0 MISO Failure With CPHA = 0 */ -#define ANOMALY_05000338 (1) +#define ANOMALY_05000338 (__SILICON_REVISION__ < 1) /* If Memory Reads Are Enabled on SDH or HOSTDP, Other DMAC1 Peripherals Cannot Read */ -#define ANOMALY_05000340 (1) +#define ANOMALY_05000340 (__SILICON_REVISION__ < 1) /* Boot Host Wait (HWAIT) and Boot Host Wait Alternate (HWAITA) Signals Are Swapped */ -#define ANOMALY_05000344 (1) +#define ANOMALY_05000344 (__SILICON_REVISION__ < 1) /* USB Calibration Value Is Not Intialized */ -#define ANOMALY_05000346 (1) +#define ANOMALY_05000346 (__SILICON_REVISION__ < 1) /* Boot ROM Kernel Incorrectly Alters Reset Value of USB Register */ -#define ANOMALY_05000347 (1) +#define ANOMALY_05000347 (__SILICON_REVISION__ < 1) /* Data Lost when Core Reads SDH Data FIFO */ -#define ANOMALY_05000349 (1) +#define ANOMALY_05000349 (__SILICON_REVISION__ < 1) /* PLL Status Register Is Inaccurate */ -#define ANOMALY_05000351 (1) +#define ANOMALY_05000351 (__SILICON_REVISION__ < 1) +/* Serial Port (SPORT) Multichannel Transmit Failure when Channel 0 Is Disabled */ +#define ANOMALY_05000357 (1) +/* External Memory Read Access Hangs Core With PLL Bypass */ +#define ANOMALY_05000360 (1) +/* DMAs that Go Urgent during Tight Core Writes to External Memory Are Blocked */ +#define ANOMALY_05000365 (1) +/* Addressing Conflict between Boot ROM and Asynchronous Memory */ +#define ANOMALY_05000369 (1) +/* Mobile DDR Operation Not Functional */ +#define ANOMALY_05000377 (1) +/* Security/Authentication Speedpath Causes Authentication To Fail To Initiate */ +#define ANOMALY_05000378 (1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000125 (0) diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h index f21a1620e6b..3770aa38ee9 100644 --- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h @@ -186,7 +186,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_output(uart->rts_pin); + gpio_direction_output(uart->rts_pin, 0); } #endif } diff --git a/include/asm-blackfin/mach-bf548/cdefBF54x_base.h b/include/asm-blackfin/mach-bf548/cdefBF54x_base.h index aefab3f618c..19ddcd83c71 100644 --- a/include/asm-blackfin/mach-bf548/cdefBF54x_base.h +++ b/include/asm-blackfin/mach-bf548/cdefBF54x_base.h @@ -244,39 +244,6 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val) #define bfin_read_TWI0_RCV_DATA16() bfin_read16(TWI0_RCV_DATA16) #define bfin_write_TWI0_RCV_DATA16(val) bfin_write16(TWI0_RCV_DATA16, val) -#define bfin_read_TWI_CLKDIV() bfin_read16(TWI0_CLKDIV) -#define bfin_write_TWI_CLKDIV(val) bfin_write16(TWI0_CLKDIV, val) -#define bfin_read_TWI_CONTROL() bfin_read16(TWI0_CONTROL) -#define bfin_write_TWI_CONTROL(val) bfin_write16(TWI0_CONTROL, val) -#define bfin_read_TWI_SLAVE_CTRL() bfin_read16(TWI0_SLAVE_CTRL) -#define bfin_write_TWI_SLAVE_CTRL(val) bfin_write16(TWI0_SLAVE_CTRL, val) -#define bfin_read_TWI_SLAVE_STAT() bfin_read16(TWI0_SLAVE_STAT) -#define bfin_write_TWI_SLAVE_STAT(val) bfin_write16(TWI0_SLAVE_STAT, val) -#define bfin_read_TWI_SLAVE_ADDR() bfin_read16(TWI0_SLAVE_ADDR) -#define bfin_write_TWI_SLAVE_ADDR(val) bfin_write16(TWI0_SLAVE_ADDR, val) -#define bfin_read_TWI_MASTER_CTL() bfin_read16(TWI0_MASTER_CTRL) -#define bfin_write_TWI_MASTER_CTL(val) bfin_write16(TWI0_MASTER_CTRL, val) -#define bfin_read_TWI_MASTER_STAT() bfin_read16(TWI0_MASTER_STAT) -#define bfin_write_TWI_MASTER_STAT(val) bfin_write16(TWI0_MASTER_STAT, val) -#define bfin_read_TWI_MASTER_ADDR() bfin_read16(TWI0_MASTER_ADDR) -#define bfin_write_TWI_MASTER_ADDR(val) bfin_write16(TWI0_MASTER_ADDR, val) -#define bfin_read_TWI_INT_STAT() bfin_read16(TWI0_INT_STAT) -#define bfin_write_TWI_INT_STAT(val) bfin_write16(TWI0_INT_STAT, val) -#define bfin_read_TWI_INT_MASK() bfin_read16(TWI0_INT_MASK) -#define bfin_write_TWI_INT_MASK(val) bfin_write16(TWI0_INT_MASK, val) -#define bfin_read_TWI_FIFO_CTL() bfin_read16(TWI0_FIFO_CTRL) -#define bfin_write_TWI_FIFO_CTL(val) bfin_write16(TWI0_FIFO_CTRL, val) -#define bfin_read_TWI_FIFO_STAT() bfin_read16(TWI0_FIFO_STAT) -#define bfin_write_TWI_FIFO_STAT(val) bfin_write16(TWI0_FIFO_STAT, val) -#define bfin_read_TWI_XMT_DATA8() bfin_read16(TWI0_XMT_DATA8) -#define bfin_write_TWI_XMT_DATA8(val) bfin_write16(TWI0_XMT_DATA8, val) -#define bfin_read_TWI_XMT_DATA16() bfin_read16(TWI0_XMT_DATA16) -#define bfin_write_TWI_XMT_DATA16(val) bfin_write16(TWI0_XMT_DATA16, val) -#define bfin_read_TWI_RCV_DATA8() bfin_read16(TWI0_RCV_DATA8) -#define bfin_write_TWI_RCV_DATA8(val) bfin_write16(TWI0_RCV_DATA8, val) -#define bfin_read_TWI_RCV_DATA16() bfin_read16(TWI0_RCV_DATA16) -#define bfin_write_TWI_RCV_DATA16(val) bfin_write16(TWI0_RCV_DATA16, val) - /* SPORT0 is not defined in the shared file because it is not available on the ADSP-BF542 and ADSP-BF544 bfin_read_()rocessors */ /* SPORT1 Registers */ diff --git a/include/asm-blackfin/mach-bf548/defBF542.h b/include/asm-blackfin/mach-bf548/defBF542.h index 32d07130200..a7c809f29ed 100644 --- a/include/asm-blackfin/mach-bf548/defBF542.h +++ b/include/asm-blackfin/mach-bf548/defBF542.h @@ -432,8 +432,8 @@ #define CMD_CRC_FAIL 0x1 /* CMD CRC Fail */ #define DAT_CRC_FAIL 0x2 /* Data CRC Fail */ -#define CMD_TIMEOUT 0x4 /* CMD Time Out */ -#define DAT_TIMEOUT 0x8 /* Data Time Out */ +#define CMD_TIME_OUT 0x4 /* CMD Time Out */ +#define DAT_TIME_OUT 0x8 /* Data Time Out */ #define TX_UNDERRUN 0x10 /* Transmit Underrun */ #define RX_OVERRUN 0x20 /* Receive Overrun */ #define CMD_RESP_END 0x40 /* CMD Response End */ diff --git a/include/asm-blackfin/mach-bf548/defBF548.h b/include/asm-blackfin/mach-bf548/defBF548.h index ecbca952985..e46f56891e6 100644 --- a/include/asm-blackfin/mach-bf548/defBF548.h +++ b/include/asm-blackfin/mach-bf548/defBF548.h @@ -1095,8 +1095,8 @@ #define CMD_CRC_FAIL 0x1 /* CMD CRC Fail */ #define DAT_CRC_FAIL 0x2 /* Data CRC Fail */ -#define CMD_TIMEOUT 0x4 /* CMD Time Out */ -#define DAT_TIMEOUT 0x8 /* Data Time Out */ +#define CMD_TIME_OUT 0x4 /* CMD Time Out */ +#define DAT_TIME_OUT 0x8 /* Data Time Out */ #define TX_UNDERRUN 0x10 /* Transmit Underrun */ #define RX_OVERRUN 0x20 /* Receive Overrun */ #define CMD_RESP_END 0x40 /* CMD Response End */ diff --git a/include/asm-blackfin/mach-bf548/defBF54x_base.h b/include/asm-blackfin/mach-bf548/defBF54x_base.h index 319a48590c9..08f90c21fe8 100644 --- a/include/asm-blackfin/mach-bf548/defBF54x_base.h +++ b/include/asm-blackfin/mach-bf548/defBF54x_base.h @@ -1772,17 +1772,36 @@ #define TRP 0x3c0000 /* Pre charge-to-active command period */ #define TRAS 0x3c00000 /* Min Active-to-pre charge time */ #define TRC 0x3c000000 /* Active-to-active time */ +#define DDR_TRAS(x) ((x<<22)&TRAS) /* DDR tRAS = (1~15) cycles */ +#define DDR_TRP(x) ((x<<18)&TRP) /* DDR tRP = (1~15) cycles */ +#define DDR_TRC(x) ((x<<26)&TRC) /* DDR tRC = (1~15) cycles */ +#define DDR_TRFC(x) ((x<<14)&TRFC) /* DDR tRFC = (1~15) cycles */ +#define DDR_TREFI(x) (x&TREFI) /* DDR tRFC = (1~15) cycles */ /* Bit masks for EBIU_DDRCTL1 */ #define TRCD 0xf /* Active-to-Read/write delay */ -#define MRD 0xf0 /* Mode register set to active */ +#define TMRD 0xf0 /* Mode register set to active */ #define TWR 0x300 /* Write Recovery time */ #define DDRDATWIDTH 0x3000 /* DDR data width */ #define EXTBANKS 0xc000 /* External banks */ #define DDRDEVWIDTH 0x30000 /* DDR device width */ #define DDRDEVSIZE 0xc0000 /* DDR device size */ -#define TWWTR 0xf0000000 /* Write-to-read delay */ +#define TWTR 0xf0000000 /* Write-to-read delay */ +#define DDR_TWTR(x) ((x<<28)&TWTR) /* DDR tWTR = (1~15) cycles */ +#define DDR_TMRD(x) ((x<<4)&TMRD) /* DDR tMRD = (1~15) cycles */ +#define DDR_TWR(x) ((x<<8)&TWR) /* DDR tWR = (1~15) cycles */ +#define DDR_TRCD(x) (x&TRCD) /* DDR tRCD = (1~15) cycles */ +#define DDR_DATWIDTH 0x2000 /* DDR data width */ +#define EXTBANK_1 0 /* 1 external bank */ +#define EXTBANK_2 0x4000 /* 2 external banks */ +#define DEVSZ_64 0x40000 /* DDR External Bank Size = 64MB */ +#define DEVSZ_128 0x80000 /* DDR External Bank Size = 128MB */ +#define DEVSZ_256 0xc0000 /* DDR External Bank Size = 256MB */ +#define DEVSZ_512 0 /* DDR External Bank Size = 512MB */ +#define DEVWD_4 0 /* DDR Device Width = 4 Bits */ +#define DEVWD_8 0x10000 /* DDR Device Width = 8 Bits */ +#define DEVWD_16 0x20000 /* DDR Device Width = 16 Bits */ /* Bit masks for EBIU_DDRCTL2 */ @@ -1790,6 +1809,10 @@ #define CASLATENCY 0x70 /* CAS latency */ #define DLLRESET 0x100 /* DLL Reset */ #define REGE 0x1000 /* Register mode enable */ +#define CL_1_5 0x50 /* DDR CAS Latency = 1.5 cycles */ +#define CL_2 0x20 /* DDR CAS Latency = 2 cycles */ +#define CL_2_5 0x60 /* DDR CAS Latency = 2.5 cycles */ +#define CL_3 0x30 /* DDR CAS Latency = 3 cycles */ /* Bit masks for EBIU_DDRCTL3 */ @@ -2257,6 +2280,10 @@ #define CSEL 0x30 /* Core Select */ #define SSEL 0xf /* System Select */ +#define CSEL_DIV1 0x0000 /* CCLK = VCO / 1 */ +#define CSEL_DIV2 0x0010 /* CCLK = VCO / 2 */ +#define CSEL_DIV4 0x0020 /* CCLK = VCO / 4 */ +#define CSEL_DIV8 0x0030 /* CCLK = VCO / 8 */ /* Bit masks for PLL_CTL */ diff --git a/include/asm-blackfin/mach-bf548/irq.h b/include/asm-blackfin/mach-bf548/irq.h index 9fb7bc5399a..c34507a3f1d 100644 --- a/include/asm-blackfin/mach-bf548/irq.h +++ b/include/asm-blackfin/mach-bf548/irq.h @@ -88,7 +88,7 @@ Events (highest priority) EMU 0 #define IRQ_PINT1 BFIN_IRQ(20) /* PINT1 Interrupt */ #define IRQ_MDMAS0 BFIN_IRQ(21) /* MDMA Stream 0 Interrupt */ #define IRQ_MDMAS1 BFIN_IRQ(22) /* MDMA Stream 1 Interrupt */ -#define IRQ_WATCHDOG BFIN_IRQ(23) /* Watchdog Interrupt */ +#define IRQ_WATCH BFIN_IRQ(23) /* Watchdog Interrupt */ #define IRQ_DMAC1_ERROR BFIN_IRQ(24) /* DMAC1 Status (Error) Interrupt */ #define IRQ_SPORT2_ERROR BFIN_IRQ(25) /* SPORT2 Error Interrupt */ #define IRQ_SPORT3_ERROR BFIN_IRQ(26) /* SPORT3 Error Interrupt */ @@ -406,7 +406,7 @@ Events (highest priority) EMU 0 #define IRQ_PINT1_POS 16 #define IRQ_MDMAS0_POS 20 #define IRQ_MDMAS1_POS 24 -#define IRQ_WATCHDOG_POS 28 +#define IRQ_WATCH_POS 28 /* IAR3 BIT FIELDS */ #define IRQ_DMAC1_ERR_POS 0 diff --git a/include/asm-blackfin/mach-bf548/mem_init.h b/include/asm-blackfin/mach-bf548/mem_init.h index 0cb279e973d..befc2903d5a 100644 --- a/include/asm-blackfin/mach-bf548/mem_init.h +++ b/include/asm-blackfin/mach-bf548/mem_init.h @@ -28,8 +28,68 @@ * If not, write to the Free Software Foundation, * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1) + +#if (CONFIG_MEM_MT46V32M16_6T) +#define DDR_SIZE DEVSZ_512 +#define DDR_WIDTH DEVWD_16 + +#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60)) +#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42)) +#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) +#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72)) +#define DDR_tREFI DDR_TREFI(MIN_DDR_SCLK(7800)) + +#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) +#define DDR_tWTR DDR_TWTR(1) +#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12)) +#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) +#endif + +#if (CONFIG_MEM_MT46V32M16_5B) +#define DDR_SIZE DEVSZ_512 +#define DDR_WIDTH DEVWD_16 + +#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55)) +#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40)) +#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) +#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70)) +#define DDR_tREFI DDR_TREFI(MIN_DDR_SCLK(7800)) + +#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) +#define DDR_tWTR DDR_TWTR(2) +#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10)) +#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) +#endif + +#if (CONFIG_MEM_GENERIC_BOARD) +#define DDR_SIZE DEVSZ_512 +#define DDR_WIDTH DEVWD_16 + +#define DDR_tRCD DDR_TRCD(3) +#define DDR_tWTR DDR_TWTR(2) +#define DDR_tWR DDR_TWR(2) +#define DDR_tMRD DDR_TMRD(2) +#define DDR_tRP DDR_TRP(3) +#define DDR_tRAS DDR_TRAS(7) +#define DDR_tRC DDR_TRC(10) +#define DDR_tRFC DDR_TRFC(12) +#define DDR_tREFI DDR_TREFI(1288) +#endif + +#if (CONFIG_SCLK_HZ <= 133333333) +#define DDR_CL CL_2 +#elif (CONFIG_SCLK_HZ <= 166666666) +#define DDR_CL CL_2_5 +#else +#define DDR_CL CL_3 +#endif + +#define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI) +#define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \ + | DDR_tMRD | DDR_tWR | DDR_tRCD) +#define mem_DDRCTL2 DDR_CL -#if (CONFIG_MEM_MT46V32M16) #if defined CONFIG_CLKIN_HALF #define CLKIN_HALF 1 diff --git a/include/asm-blackfin/mach-bf548/portmux.h b/include/asm-blackfin/mach-bf548/portmux.h index 6b485120015..8177a567dcd 100644 --- a/include/asm-blackfin/mach-bf548/portmux.h +++ b/include/asm-blackfin/mach-bf548/portmux.h @@ -1,6 +1,8 @@ #ifndef _MACH_PORTMUX_H_ #define _MACH_PORTMUX_H_ +#define MAX_RESOURCES MAX_BLACKFIN_GPIOS + #define P_SPORT2_TFS (P_DEFINED | P_IDENT(GPIO_PA0) | P_FUNCT(0)) #define P_SPORT2_DTSEC (P_DEFINED | P_IDENT(GPIO_PA1) | P_FUNCT(0)) #define P_SPORT2_DTPRI (P_DEFINED | P_IDENT(GPIO_PA2) | P_FUNCT(0)) diff --git a/include/asm-blackfin/mach-bf561/anomaly.h b/include/asm-blackfin/mach-bf561/anomaly.h index bed95645688..0c1d4619393 100644 --- a/include/asm-blackfin/mach-bf561/anomaly.h +++ b/include/asm-blackfin/mach-bf561/anomaly.h @@ -7,7 +7,7 @@ */ /* This file shoule be up to date with: - * - Revision N, March 28, 2007; ADSP-BF561 Silicon Anomaly List + * - Revision O, 11/15/2007; ADSP-BF561 Blackfin Processor Anomaly List */ #ifndef _MACH_ANOMALY_H_ @@ -15,7 +15,7 @@ /* We do not support 0.1, 0.2, or 0.4 silicon - sorry */ #if __SILICON_REVISION__ < 3 || __SILICON_REVISION__ == 4 -# error Kernel will not work on BF561 silicon version 0.0, 0.1, 0.2, or 0.4 +# error will not work on BF561 silicon version 0.0, 0.1, 0.2, or 0.4 #endif /* Multi-Issue Instruction with dsp32shiftimm in slot1 and P-reg Store in slot 2 Not Supported */ @@ -208,6 +208,8 @@ #define ANOMALY_05000275 (__SILICON_REVISION__ > 2) /* Timing Requirements Change for External Frame Sync PPI Modes with Non-Zero PPI_DELAY */ #define ANOMALY_05000276 (__SILICON_REVISION__ < 5) +/* Writes to an I/O data register one SCLK cycle after an edge is detected may clear interrupt */ +#define ANOMALY_05000277 (__SILICON_REVISION__ < 3) /* Disabling Peripherals with DMA Running May Cause DMA System Instability */ #define ANOMALY_05000278 (__SILICON_REVISION__ < 5) /* False Hardware Error Exception When ISR Context Is Not Restored */ @@ -246,6 +248,18 @@ #define ANOMALY_05000332 (__SILICON_REVISION__ < 5) /* Flag Data Register Writes One SCLK Cycle After Edge Is Detected May Clear Interrupt Status */ #define ANOMALY_05000333 (__SILICON_REVISION__ < 5) +/* New Feature: Additional PPI Frame Sync Sampling Options (Not Available on Older Silicon) */ +#define ANOMALY_05000339 (__SILICON_REVISION__ < 5) +/* Memory DMA FIFO Causes Throughput Degradation on Writes to External Memory */ +#define ANOMALY_05000343 (__SILICON_REVISION__ < 5) +/* Serial Port (SPORT) Multichannel Transmit Failure when Channel 0 Is Disabled */ +#define ANOMALY_05000357 (1) +/* Conflicting Column Address Widths Causes SDRAM Errors */ +#define ANOMALY_05000362 (1) +/* PPI Underflow Error Goes Undetected in ITU-R 656 Mode */ +#define ANOMALY_05000366 (1) +/* Possible RETS Register Corruption when Subroutine Is under 5 Cycles in Duration */ +#define ANOMALY_05000371 (1) /* Anomalies that don't exist on this proc */ #define ANOMALY_05000158 (0) diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h index 69b9f8e120e..7871d4313f4 100644 --- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h +++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h @@ -111,7 +111,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) } if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_input(uart->rts_pin); + gpio_direction_input(uart->rts_pin, 0); } #endif } diff --git a/include/asm-blackfin/mach-bf561/portmux.h b/include/asm-blackfin/mach-bf561/portmux.h index 132ad31665e..a6ee8206efb 100644 --- a/include/asm-blackfin/mach-bf561/portmux.h +++ b/include/asm-blackfin/mach-bf561/portmux.h @@ -1,6 +1,8 @@ #ifndef _MACH_PORTMUX_H_ #define _MACH_PORTMUX_H_ +#define MAX_RESOURCES MAX_BLACKFIN_GPIOS + #define P_PPI0_CLK (P_DONTCARE) #define P_PPI0_FS1 (P_DONTCARE) #define P_PPI0_FS2 (P_DONTCARE) diff --git a/include/asm-blackfin/mmu.h b/include/asm-blackfin/mmu.h index 11d52f1167d..757e43906ed 100644 --- a/include/asm-blackfin/mmu.h +++ b/include/asm-blackfin/mmu.h @@ -24,7 +24,9 @@ typedef struct { unsigned long exec_fdpic_loadmap; unsigned long interp_fdpic_loadmap; #endif - +#ifdef CONFIG_MPU + unsigned long *page_rwx_mask; +#endif } mm_context_t; #endif diff --git a/include/asm-blackfin/mmu_context.h b/include/asm-blackfin/mmu_context.h index c5c71a6aaf1..b5eb67596ad 100644 --- a/include/asm-blackfin/mmu_context.h +++ b/include/asm-blackfin/mmu_context.h @@ -30,9 +30,12 @@ #ifndef __BLACKFIN_MMU_CONTEXT_H__ #define __BLACKFIN_MMU_CONTEXT_H__ +#include <linux/gfp.h> +#include <linux/sched.h> #include <asm/setup.h> #include <asm/page.h> #include <asm/pgalloc.h> +#include <asm/cplbinit.h> extern void *current_l1_stack_save; extern int nr_l1stack_tasks; @@ -50,6 +53,12 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { +#ifdef CONFIG_MPU + unsigned long p = __get_free_pages(GFP_KERNEL, page_mask_order); + mm->context.page_rwx_mask = (unsigned long *)p; + memset(mm->context.page_rwx_mask, 0, + page_mask_nelts * 3 * sizeof(long)); +#endif return 0; } @@ -73,6 +82,11 @@ static inline void destroy_context(struct mm_struct *mm) sram_free(tmp->addr); kfree(tmp); } +#ifdef CONFIG_MPU + if (current_rwx_mask == mm->context.page_rwx_mask) + current_rwx_mask = NULL; + free_pages((unsigned long)mm->context.page_rwx_mask, page_mask_order); +#endif } static inline unsigned long @@ -106,9 +120,21 @@ activate_l1stack(struct mm_struct *mm, unsigned long sp_base) #define deactivate_mm(tsk,mm) do { } while (0) -static inline void activate_mm(struct mm_struct *prev_mm, - struct mm_struct *next_mm) +#define activate_mm(prev, next) switch_mm(prev, next, NULL) + +static inline void switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm, + struct task_struct *tsk) { + if (prev_mm == next_mm) + return; +#ifdef CONFIG_MPU + if (prev_mm->context.page_rwx_mask == current_rwx_mask) { + flush_switched_cplbs(); + set_mask_dcplbs(next_mm->context.page_rwx_mask); + } +#endif + + /* L1 stack switching. */ if (!next_mm->context.l1_stack_save) return; if (next_mm->context.l1_stack_save == current_l1_stack_save) @@ -120,10 +146,36 @@ static inline void activate_mm(struct mm_struct *prev_mm, memcpy(l1_stack_base, current_l1_stack_save, l1_stack_len); } -static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - struct task_struct *tsk) +#ifdef CONFIG_MPU +static inline void protect_page(struct mm_struct *mm, unsigned long addr, + unsigned long flags) +{ + unsigned long *mask = mm->context.page_rwx_mask; + unsigned long page = addr >> 12; + unsigned long idx = page >> 5; + unsigned long bit = 1 << (page & 31); + + if (flags & VM_MAYREAD) + mask[idx] |= bit; + else + mask[idx] &= ~bit; + mask += page_mask_nelts; + if (flags & VM_MAYWRITE) + mask[idx] |= bit; + else + mask[idx] &= ~bit; + mask += page_mask_nelts; + if (flags & VM_MAYEXEC) + mask[idx] |= bit; + else + mask[idx] &= ~bit; +} + +static inline void update_protections(struct mm_struct *mm) { - activate_mm(prev, next); + flush_switched_cplbs(); + set_mask_dcplbs(mm->context.page_rwx_mask); } +#endif #endif diff --git a/include/asm-blackfin/traps.h b/include/asm-blackfin/traps.h index ee1cbf73a9a..f0e5f940d9c 100644 --- a/include/asm-blackfin/traps.h +++ b/include/asm-blackfin/traps.h @@ -45,6 +45,10 @@ #define VEC_CPLB_I_M (44) #define VEC_CPLB_I_MHIT (45) #define VEC_ILL_RES (46) /* including unvalid supervisor mode insn */ +/* The hardware reserves (63) for future use - we use it to tell our + * normal exception handling code we have a hardware error + */ +#define VEC_HWERR (63) #ifndef __ASSEMBLY__ diff --git a/include/asm-blackfin/uaccess.h b/include/asm-blackfin/uaccess.h index 2233f8f9314..22a410b8003 100644 --- a/include/asm-blackfin/uaccess.h +++ b/include/asm-blackfin/uaccess.h @@ -31,7 +31,7 @@ static inline void set_fs(mm_segment_t fs) #define VERIFY_READ 0 #define VERIFY_WRITE 1 -#define access_ok(type,addr,size) _access_ok((unsigned long)(addr),(size)) +#define access_ok(type, addr, size) _access_ok((unsigned long)(addr), (size)) static inline int is_in_rom(unsigned long addr) { diff --git a/include/asm-blackfin/unistd.h b/include/asm-blackfin/unistd.h index 07ffe8b718c..e98167358d2 100644 --- a/include/asm-blackfin/unistd.h +++ b/include/asm-blackfin/unistd.h @@ -369,8 +369,9 @@ #define __NR_set_robust_list 354 #define __NR_get_robust_list 355 #define __NR_fallocate 356 +#define __NR_semtimedop 357 -#define __NR_syscall 357 +#define __NR_syscall 358 #define NR_syscalls __NR_syscall /* Old optional stuff no one actually uses */ diff --git a/include/asm-s390/airq.h b/include/asm-s390/airq.h new file mode 100644 index 00000000000..41d028cb52a --- /dev/null +++ b/include/asm-s390/airq.h @@ -0,0 +1,19 @@ +/* + * include/asm-s390/airq.h + * + * Copyright IBM Corp. 2002,2007 + * Author(s): Ingo Adlung <adlung@de.ibm.com> + * Cornelia Huck <cornelia.huck@de.ibm.com> + * Arnd Bergmann <arndb@de.ibm.com> + * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#ifndef _ASM_S390_AIRQ_H +#define _ASM_S390_AIRQ_H + +typedef void (*adapter_int_handler_t)(void *, void *); + +void *s390_register_adapter_interrupt(adapter_int_handler_t, void *); +void s390_unregister_adapter_interrupt(void *); + +#endif /* _ASM_S390_AIRQ_H */ diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h index 2f08c16e44a..123b557c3ff 100644 --- a/include/asm-s390/cio.h +++ b/include/asm-s390/cio.h @@ -24,8 +24,8 @@ * @fmt: format * @pfch: prefetch * @isic: initial-status interruption control - * @alcc: adress-limit checking control - * @ssi: supress-suspended interruption + * @alcc: address-limit checking control + * @ssi: suppress-suspended interruption * @zcc: zero condition code * @ectl: extended control * @pno: path not operational diff --git a/include/asm-s390/dasd.h b/include/asm-s390/dasd.h index 604f68fa6f5..3f002e13d02 100644 --- a/include/asm-s390/dasd.h +++ b/include/asm-s390/dasd.h @@ -105,7 +105,7 @@ typedef struct dasd_information_t { } dasd_information_t; /* - * Read Subsystem Data - Perfomance Statistics + * Read Subsystem Data - Performance Statistics */ typedef struct dasd_rssd_perf_stats_t { unsigned char invalid:1; diff --git a/include/asm-s390/ipl.h b/include/asm-s390/ipl.h index 2c40fd3a137..c1b2e50392b 100644 --- a/include/asm-s390/ipl.h +++ b/include/asm-s390/ipl.h @@ -83,6 +83,8 @@ extern u32 dump_prefix_page; extern unsigned int zfcpdump_prefix_array[]; extern void do_reipl(void); +extern void do_halt(void); +extern void do_poff(void); extern void ipl_save_parameters(void); enum { @@ -118,7 +120,7 @@ struct ipl_info }; extern struct ipl_info ipl_info; -extern void setup_ipl_info(void); +extern void setup_ipl(void); /* * DIAG 308 support @@ -141,6 +143,10 @@ enum diag308_opt { DIAG308_IPL_OPT_DUMP = 0x20, }; +enum diag308_flags { + DIAG308_FLAGS_LP_VALID = 0x80, +}; + enum diag308_rc { DIAG308_RC_OK = 1, }; diff --git a/include/asm-s390/mmu_context.h b/include/asm-s390/mmu_context.h index 05b842126b9..a77d4ba3c8e 100644 --- a/include/asm-s390/mmu_context.h +++ b/include/asm-s390/mmu_context.h @@ -12,10 +12,15 @@ #include <asm/pgalloc.h> #include <asm-generic/mm_hooks.h> -/* - * get a new mmu context.. S390 don't know about contexts. - */ -#define init_new_context(tsk,mm) 0 +static inline int init_new_context(struct task_struct *tsk, + struct mm_struct *mm) +{ + mm->context = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS; +#ifdef CONFIG_64BIT + mm->context |= _ASCE_TYPE_REGION3; +#endif + return 0; +} #define destroy_context(mm) do { } while (0) @@ -27,19 +32,11 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk) { - pgd_t *pgd = mm->pgd; - unsigned long asce_bits; - - /* Calculate asce bits from the first pgd table entry. */ - asce_bits = _ASCE_TABLE_LENGTH | _ASCE_USER_BITS; -#ifdef CONFIG_64BIT - asce_bits |= _ASCE_TYPE_REGION3; -#endif - S390_lowcore.user_asce = asce_bits | __pa(pgd); + S390_lowcore.user_asce = mm->context | __pa(mm->pgd); if (switch_amode) { /* Load primary space page table origin. */ - pgd_t *shadow_pgd = get_shadow_table(pgd) ? : pgd; - S390_lowcore.user_exec_asce = asce_bits | __pa(shadow_pgd); + pgd_t *shadow_pgd = get_shadow_table(mm->pgd) ? : mm->pgd; + S390_lowcore.user_exec_asce = mm->context | __pa(shadow_pgd); asm volatile(LCTL_OPCODE" 1,1,%0\n" : : "m" (S390_lowcore.user_exec_asce) ); } else diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 1f530f8a628..79b9eab1a0c 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -104,41 +104,27 @@ extern char empty_zero_page[PAGE_SIZE]; #ifndef __ASSEMBLY__ /* - * Just any arbitrary offset to the start of the vmalloc VM area: the - * current 8MB value just means that there will be a 8MB "hole" after the - * physical memory until the kernel virtual memory starts. That means that - * any out-of-bounds memory accesses will hopefully be caught. - * The vmalloc() routines leaves a hole of 4kB between each vmalloced - * area for the same reason. ;) - * vmalloc area starts at 4GB to prevent syscall table entry exchanging - * from modules. - */ -extern unsigned long vmalloc_end; - -#ifdef CONFIG_64BIT -#define VMALLOC_ADDR (max(0x100000000UL, (unsigned long) high_memory)) -#else -#define VMALLOC_ADDR ((unsigned long) high_memory) -#endif -#define VMALLOC_OFFSET (8*1024*1024) -#define VMALLOC_START ((VMALLOC_ADDR + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) -#define VMALLOC_END vmalloc_end - -/* - * We need some free virtual space to be able to do vmalloc. - * VMALLOC_MIN_SIZE defines the minimum size of the vmalloc - * area. On a machine with 2GB memory we make sure that we - * have at least 128MB free space for vmalloc. On a machine - * with 4TB we make sure we have at least 128GB. + * The vmalloc area will always be on the topmost area of the kernel + * mapping. We reserve 96MB (31bit) / 1GB (64bit) for vmalloc, + * which should be enough for any sane case. + * By putting vmalloc at the top, we maximise the gap between physical + * memory and vmalloc to catch misplaced memory accesses. As a side + * effect, this also makes sure that 64 bit module code cannot be used + * as system call address. */ #ifndef __s390x__ -#define VMALLOC_MIN_SIZE 0x8000000UL -#define VMALLOC_END_INIT 0x80000000UL +#define VMALLOC_START 0x78000000UL +#define VMALLOC_END 0x7e000000UL +#define VMEM_MAP_MAX 0x80000000UL #else /* __s390x__ */ -#define VMALLOC_MIN_SIZE 0x2000000000UL -#define VMALLOC_END_INIT 0x40000000000UL +#define VMALLOC_START 0x3e000000000UL +#define VMALLOC_END 0x3e040000000UL +#define VMEM_MAP_MAX 0x40000000000UL #endif /* __s390x__ */ +#define VMEM_MAP ((struct page *) VMALLOC_END) +#define VMEM_MAP_SIZE ((VMALLOC_START / PAGE_SIZE) * sizeof(struct page)) + /* * A 31 bit pagetable entry of S390 has following format: * | PFRA | | OS | diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index 21d40a19355..c86b982aef5 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -59,9 +59,6 @@ extern void s390_adjust_jiffies(void); extern void print_cpu_info(struct cpuinfo_S390 *); extern int get_cpu_capability(unsigned int *); -/* Lazy FPU handling on uni-processor */ -extern struct task_struct *last_task_used_math; - /* * User space process size: 2GB for 31 bit, 4TB for 64 bit. */ @@ -95,7 +92,6 @@ struct thread_struct { unsigned long ksp; /* kernel stack pointer */ mm_segment_t mm_segment; unsigned long prot_addr; /* address of protection-excep. */ - unsigned int error_code; /* error-code of last prog-excep. */ unsigned int trap_no; per_struct per_info; /* Used to give failing instruction back to user for ieee exceptions */ diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h index 332ee73688f..61f6952f2e3 100644 --- a/include/asm-s390/ptrace.h +++ b/include/asm-s390/ptrace.h @@ -465,6 +465,14 @@ struct user_regs_struct #ifdef __KERNEL__ #define __ARCH_SYS_PTRACE 1 +/* + * These are defined as per linux/ptrace.h, which see. + */ +#define arch_has_single_step() (1) +struct task_struct; +extern void user_enable_single_step(struct task_struct *); +extern void user_disable_single_step(struct task_struct *); + #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0) #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN) #define regs_return_value(regs)((regs)->gprs[2]) diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h index 74db1dc10a7..4b8ff55f680 100644 --- a/include/asm-s390/qdio.h +++ b/include/asm-s390/qdio.h @@ -184,7 +184,7 @@ struct qdr { #endif /* QDIO_32_BIT */ unsigned long qiba; /* queue-information-block address */ unsigned int res8; /* reserved */ - unsigned int qkey : 4; /* queue-informatio-block key */ + unsigned int qkey : 4; /* queue-information-block key */ unsigned int res9 : 28; /* reserved */ /* union _qd {*/ /* why this? */ struct qdesfmt0 qdf0[126]; diff --git a/include/asm-s390/rwsem.h b/include/asm-s390/rwsem.h index 90f4eccaa29..9d2a1797180 100644 --- a/include/asm-s390/rwsem.h +++ b/include/asm-s390/rwsem.h @@ -91,8 +91,8 @@ struct rw_semaphore { #endif #define __RWSEM_INITIALIZER(name) \ -{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \ - __RWSEM_DEP_MAP_INIT(name) } + { RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait.lock), \ + LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) } #define DECLARE_RWSEM(name) \ struct rw_semaphore name = __RWSEM_INITIALIZER(name) diff --git a/include/asm-s390/sclp.h b/include/asm-s390/sclp.h index cb9faf1ea5c..b5f2843013a 100644 --- a/include/asm-s390/sclp.h +++ b/include/asm-s390/sclp.h @@ -27,7 +27,25 @@ struct sclp_ipl_info { char loadparm[LOADPARM_LEN]; }; -void sclp_readinfo_early(void); +struct sclp_cpu_entry { + u8 address; + u8 reserved0[13]; + u8 type; + u8 reserved1; +} __attribute__((packed)); + +struct sclp_cpu_info { + unsigned int configured; + unsigned int standby; + unsigned int combined; + int has_cpu_type; + struct sclp_cpu_entry cpu[255]; +}; + +int sclp_get_cpu_info(struct sclp_cpu_info *info); +int sclp_cpu_configure(u8 cpu); +int sclp_cpu_deconfigure(u8 cpu); +void sclp_read_info_early(void); void sclp_facilities_detect(void); unsigned long long sclp_memory_detect(void); int sclp_sdias_blk_count(void); diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index 07708c07701..c7b74326a52 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -35,8 +35,6 @@ extern void machine_restart_smp(char *); extern void machine_halt_smp(void); extern void machine_power_off_smp(void); -extern void smp_setup_cpu_possible_map(void); - #define NO_PROC_ID 0xFF /* No processor magic marker */ /* @@ -92,6 +90,8 @@ extern void __cpu_die (unsigned int cpu); extern void cpu_die (void) __attribute__ ((noreturn)); extern int __cpu_up (unsigned int cpu); +extern int smp_call_function_mask(cpumask_t mask, void (*func)(void *), + void *info, int wait); #endif #ifndef CONFIG_SMP @@ -103,7 +103,6 @@ static inline void smp_send_stop(void) #define hard_smp_processor_id() 0 #define smp_cpu_not_running(cpu) 1 -#define smp_setup_cpu_possible_map() do { } while (0) #endif extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h index 3fd43826fd0..df84ae96915 100644 --- a/include/asm-s390/spinlock.h +++ b/include/asm-s390/spinlock.h @@ -53,44 +53,48 @@ _raw_compare_and_swap(volatile unsigned int *lock, */ #define __raw_spin_is_locked(x) ((x)->owner_cpu != 0) -#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) #define __raw_spin_unlock_wait(lock) \ do { while (__raw_spin_is_locked(lock)) \ _raw_spin_relax(lock); } while (0) -extern void _raw_spin_lock_wait(raw_spinlock_t *, unsigned int pc); -extern int _raw_spin_trylock_retry(raw_spinlock_t *, unsigned int pc); +extern void _raw_spin_lock_wait(raw_spinlock_t *); +extern void _raw_spin_lock_wait_flags(raw_spinlock_t *, unsigned long flags); +extern int _raw_spin_trylock_retry(raw_spinlock_t *); extern void _raw_spin_relax(raw_spinlock_t *lock); static inline void __raw_spin_lock(raw_spinlock_t *lp) { - unsigned long pc = 1 | (unsigned long) __builtin_return_address(0); int old; old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); - if (likely(old == 0)) { - lp->owner_pc = pc; + if (likely(old == 0)) return; - } - _raw_spin_lock_wait(lp, pc); + _raw_spin_lock_wait(lp); +} + +static inline void __raw_spin_lock_flags(raw_spinlock_t *lp, + unsigned long flags) +{ + int old; + + old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); + if (likely(old == 0)) + return; + _raw_spin_lock_wait_flags(lp, flags); } static inline int __raw_spin_trylock(raw_spinlock_t *lp) { - unsigned long pc = 1 | (unsigned long) __builtin_return_address(0); int old; old = _raw_compare_and_swap(&lp->owner_cpu, 0, ~smp_processor_id()); - if (likely(old == 0)) { - lp->owner_pc = pc; + if (likely(old == 0)) return 1; - } - return _raw_spin_trylock_retry(lp, pc); + return _raw_spin_trylock_retry(lp); } static inline void __raw_spin_unlock(raw_spinlock_t *lp) { - lp->owner_pc = 0; _raw_compare_and_swap(&lp->owner_cpu, lp->owner_cpu, 0); } diff --git a/include/asm-s390/spinlock_types.h b/include/asm-s390/spinlock_types.h index b7ac13f7aa3..654abc40de0 100644 --- a/include/asm-s390/spinlock_types.h +++ b/include/asm-s390/spinlock_types.h @@ -7,7 +7,6 @@ typedef struct { volatile unsigned int owner_cpu; - volatile unsigned int owner_pc; } __attribute__ ((aligned (4))) raw_spinlock_t; #define __RAW_SPIN_LOCK_UNLOCKED { 0 } diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h index a69bd2490d5..70fa5ae5818 100644 --- a/include/asm-s390/tlbflush.h +++ b/include/asm-s390/tlbflush.h @@ -42,11 +42,11 @@ static inline void __tlb_flush_global(void) /* * Flush all tlb entries of a page table on all cpus. */ -static inline void __tlb_flush_idte(pgd_t *pgd) +static inline void __tlb_flush_idte(unsigned long asce) { asm volatile( " .insn rrf,0xb98e0000,0,%0,%1,0" - : : "a" (2048), "a" (__pa(pgd) & PAGE_MASK) : "cc" ); + : : "a" (2048), "a" (asce) : "cc" ); } static inline void __tlb_flush_mm(struct mm_struct * mm) @@ -61,11 +61,11 @@ static inline void __tlb_flush_mm(struct mm_struct * mm) * only ran on the local cpu. */ if (MACHINE_HAS_IDTE) { - pgd_t *shadow_pgd = get_shadow_table(mm->pgd); + pgd_t *shadow = get_shadow_table(mm->pgd); - if (shadow_pgd) - __tlb_flush_idte(shadow_pgd); - __tlb_flush_idte(mm->pgd); + if (shadow) + __tlb_flush_idte((unsigned long) shadow | mm->context); + __tlb_flush_idte((unsigned long) mm->pgd | mm->context); return; } preempt_disable(); @@ -106,9 +106,23 @@ static inline void __tlb_flush_mm_cond(struct mm_struct * mm) */ #define flush_tlb() do { } while (0) #define flush_tlb_all() do { } while (0) -#define flush_tlb_mm(mm) __tlb_flush_mm_cond(mm) #define flush_tlb_page(vma, addr) do { } while (0) -#define flush_tlb_range(vma, start, end) __tlb_flush_mm_cond(mm) -#define flush_tlb_kernel_range(start, end) __tlb_flush_mm(&init_mm) + +static inline void flush_tlb_mm(struct mm_struct *mm) +{ + __tlb_flush_mm_cond(mm); +} + +static inline void flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) +{ + __tlb_flush_mm_cond(vma->vm_mm); +} + +static inline void flush_tlb_kernel_range(unsigned long start, + unsigned long end) +{ + __tlb_flush_mm(&init_mm); +} #endif /* _S390_TLBFLUSH_H */ diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h index a5dada61775..f228f1b8687 100644 --- a/include/asm-s390/zcrypt.h +++ b/include/asm-s390/zcrypt.h @@ -117,7 +117,7 @@ struct CPRBX { unsigned char padx004[16 - sizeof (char *)]; unsigned char * req_extb; /* request extension block 'addr'*/ unsigned char padx005[16 - sizeof (char *)]; - unsigned char * rpl_extb; /* reply extension block 'addres'*/ + unsigned char * rpl_extb; /* reply extension block 'address'*/ unsigned short ccp_rtcode; /* server return code */ unsigned short ccp_rscode; /* server reason code */ unsigned int mac_data_len; /* Mac Data Length */ diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bd20a4e8663..49b7a4c31a6 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -143,7 +143,6 @@ enum rq_cmd_type_bits { * use REQ_TYPE_SPECIAL and use rq->cmd[0] with the range of driver * private REQ_LB opcodes to differentiate what type of request this is */ - REQ_TYPE_ATA_CMD, REQ_TYPE_ATA_TASKFILE, REQ_TYPE_ATA_PC, }; diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h index c7a51a196f5..f922b060158 100644 --- a/include/linux/i2c-id.h +++ b/include/linux/i2c-id.h @@ -33,23 +33,13 @@ #define I2C_DRIVERID_MSP3400 1 #define I2C_DRIVERID_TUNER 2 -#define I2C_DRIVERID_VIDEOTEX 3 /* please rename */ #define I2C_DRIVERID_TDA8425 4 /* stereo sound processor */ #define I2C_DRIVERID_TEA6420 5 /* audio matrix switch */ #define I2C_DRIVERID_TEA6415C 6 /* video matrix switch */ #define I2C_DRIVERID_TDA9840 7 /* stereo sound processor */ #define I2C_DRIVERID_SAA7111A 8 /* video input processor */ -#define I2C_DRIVERID_SAA5281 9 /* videotext decoder */ -#define I2C_DRIVERID_SAA7112 10 /* video decoder, image scaler */ -#define I2C_DRIVERID_SAA7120 11 /* video encoder */ -#define I2C_DRIVERID_SAA7121 12 /* video encoder */ #define I2C_DRIVERID_SAA7185B 13 /* video encoder */ -#define I2C_DRIVERID_CH7003 14 /* digital pc to tv encoder */ -#define I2C_DRIVERID_PCF8574A 15 /* i2c expander - 8 bit in/out */ -#define I2C_DRIVERID_PCF8582C 16 /* eeprom */ -#define I2C_DRIVERID_AT24Cxx 17 /* eeprom 1/2/4/8/16 K */ #define I2C_DRIVERID_TEA6300 18 /* audio mixer */ -#define I2C_DRIVERID_BT829 19 /* pc to tv encoder */ #define I2C_DRIVERID_TDA9850 20 /* audio mixer */ #define I2C_DRIVERID_TDA9855 21 /* audio mixer */ #define I2C_DRIVERID_SAA7110 22 /* video decoder */ @@ -60,42 +50,19 @@ #define I2C_DRIVERID_TDA7432 27 /* Stereo sound processor */ #define I2C_DRIVERID_TVMIXER 28 /* Mixer driver for tv cards */ #define I2C_DRIVERID_TVAUDIO 29 /* Generic TV sound driver */ -#define I2C_DRIVERID_DPL3518 30 /* Dolby decoder chip */ #define I2C_DRIVERID_TDA9873 31 /* TV sound decoder chip */ #define I2C_DRIVERID_TDA9875 32 /* TV sound decoder chip */ #define I2C_DRIVERID_PIC16C54_PV9 33 /* Audio mux/ir receiver */ - -#define I2C_DRIVERID_SBATT 34 /* Smart Battery Device */ -#define I2C_DRIVERID_SBS 35 /* SB System Manager */ -#define I2C_DRIVERID_VES1893 36 /* VLSI DVB-S decoder */ -#define I2C_DRIVERID_VES1820 37 /* VLSI DVB-C decoder */ -#define I2C_DRIVERID_SAA7113 38 /* video decoder */ -#define I2C_DRIVERID_TDA8444 39 /* octuple 6-bit DAC */ #define I2C_DRIVERID_BT819 40 /* video decoder */ #define I2C_DRIVERID_BT856 41 /* video encoder */ #define I2C_DRIVERID_VPX3220 42 /* video decoder+vbi/vtxt */ -#define I2C_DRIVERID_DRP3510 43 /* ADR decoder (Astra Radio) */ -#define I2C_DRIVERID_SP5055 44 /* Satellite tuner */ -#define I2C_DRIVERID_STV0030 45 /* Multipurpose switch */ -#define I2C_DRIVERID_SAA7108 46 /* video decoder, image scaler */ -#define I2C_DRIVERID_DS1307 47 /* DS1307 real time clock */ #define I2C_DRIVERID_ADV7175 48 /* ADV 7175/7176 video encoder */ #define I2C_DRIVERID_SAA7114 49 /* video decoder */ -#define I2C_DRIVERID_ZR36120 50 /* Zoran 36120 video encoder */ -#define I2C_DRIVERID_24LC32A 51 /* Microchip 24LC32A 32k EEPROM */ -#define I2C_DRIVERID_STM41T00 52 /* real time clock */ -#define I2C_DRIVERID_UDA1342 53 /* UDA1342 audio codec */ #define I2C_DRIVERID_ADV7170 54 /* video encoder */ -#define I2C_DRIVERID_MAX1617 56 /* temp sensor */ #define I2C_DRIVERID_SAA7191 57 /* video decoder */ #define I2C_DRIVERID_INDYCAM 58 /* SGI IndyCam */ -#define I2C_DRIVERID_BT832 59 /* CMOS camera video processor */ -#define I2C_DRIVERID_TDA9887 60 /* TDA988x IF-PLL demodulator */ #define I2C_DRIVERID_OVCAMCHIP 61 /* OmniVision CMOS image sens. */ -#define I2C_DRIVERID_TDA7313 62 /* TDA7313 audio processor */ #define I2C_DRIVERID_MAX6900 63 /* MAX6900 real-time clock */ -#define I2C_DRIVERID_SAA7114H 64 /* video decoder */ -#define I2C_DRIVERID_DS1374 65 /* DS1374 real time clock */ #define I2C_DRIVERID_TDA9874 66 /* TV sound decoder */ #define I2C_DRIVERID_SAA6752HS 67 /* MPEG2 encoder */ #define I2C_DRIVERID_TVEEPROM 68 /* TV EEPROM */ @@ -114,7 +81,6 @@ #define I2C_DRIVERID_DS1672 81 /* Dallas/Maxim DS1672 RTC */ #define I2C_DRIVERID_X1205 82 /* Xicor/Intersil X1205 RTC */ #define I2C_DRIVERID_PCF8563 83 /* Philips PCF8563 RTC */ -#define I2C_DRIVERID_RS5C372 84 /* Ricoh RS5C372 RTC */ #define I2C_DRIVERID_BT866 85 /* Conexant bt866 video encoder */ #define I2C_DRIVERID_KS0127 86 /* Samsung ks0127 video decoder */ #define I2C_DRIVERID_TLV320AIC23B 87 /* TI TLV320AIC23B audio codec */ @@ -129,8 +95,6 @@ #define I2C_DRIVERID_CS5345 96 /* cs5345 audio processor */ #define I2C_DRIVERID_I2CDEV 900 -#define I2C_DRIVERID_ARP 902 /* SMBus ARP Client */ -#define I2C_DRIVERID_ALERT 903 /* SMBus Alert Responder Client */ /* IDs -- Use DRIVERIDs 1000-1999 for sensors. These were originally in sensors.h in the lm_sensors package */ @@ -176,24 +140,16 @@ /* --- Bit algorithm adapters */ #define I2C_HW_B_LP 0x010000 /* Parallel port Philips style */ -#define I2C_HW_B_SER 0x010002 /* Serial line interface */ #define I2C_HW_B_BT848 0x010005 /* BT848 video boards */ -#define I2C_HW_B_WNV 0x010006 /* Winnov Videums */ #define I2C_HW_B_VIA 0x010007 /* Via vt82c586b */ #define I2C_HW_B_HYDRA 0x010008 /* Apple Hydra Mac I/O */ #define I2C_HW_B_G400 0x010009 /* Matrox G400 */ #define I2C_HW_B_I810 0x01000a /* Intel I810 */ #define I2C_HW_B_VOO 0x01000b /* 3dfx Voodoo 3 / Banshee */ -#define I2C_HW_B_PPORT 0x01000c /* Primitive parallel port adapter */ -#define I2C_HW_B_SAVG 0x01000d /* Savage 4 */ #define I2C_HW_B_SCX200 0x01000e /* Nat'l Semi SCx200 I2C */ #define I2C_HW_B_RIVA 0x010010 /* Riva based graphics cards */ #define I2C_HW_B_IOC 0x010011 /* IOC bit-wiggling */ -#define I2C_HW_B_TSUNA 0x010012 /* DEC Tsunami chipset */ -#define I2C_HW_B_OMAHA 0x010014 /* Omaha I2C interface (ARM) */ -#define I2C_HW_B_GUIDE 0x010015 /* Guide bit-basher */ #define I2C_HW_B_IXP2000 0x010016 /* GPIO on IXP2000 systems */ -#define I2C_HW_B_IXP4XX 0x010017 /* GPIO on IXP4XX systems */ #define I2C_HW_B_S3VIA 0x010018 /* S3Via ProSavage adapter */ #define I2C_HW_B_ZR36067 0x010019 /* Zoran-36057/36067 based boards */ #define I2C_HW_B_PCILYNX 0x01001a /* TI PCILynx I2C adapter */ @@ -207,22 +163,11 @@ #define I2C_HW_B_CX23885 0x010022 /* conexant 23885 based tv cards (bus1) */ /* --- PCF 8584 based algorithms */ -#define I2C_HW_P_LP 0x020000 /* Parallel port interface */ -#define I2C_HW_P_ISA 0x020001 /* generic ISA Bus inteface card */ #define I2C_HW_P_ELEK 0x020002 /* Elektor ISA Bus inteface card */ /* --- PCA 9564 based algorithms */ #define I2C_HW_A_ISA 0x1a0000 /* generic ISA Bus interface card */ -/* --- ACPI Embedded controller algorithms */ -#define I2C_HW_ACPI_EC 0x1f0000 - -/* --- MPC824x PowerPC adapters */ -#define I2C_HW_MPC824X 0x100001 /* Motorola 8240 / 8245 */ - -/* --- MPC8xx PowerPC adapters */ -#define I2C_HW_MPC8XX_EPON 0x110000 /* Eponymous MPC8xx I2C adapter */ - /* --- PowerPC on-chip adapters */ #define I2C_HW_OCP 0x120000 /* IBM on-chip I2C adapter */ @@ -231,7 +176,6 @@ /* --- SGI adapters */ #define I2C_HW_SGI_VINO 0x160000 -#define I2C_HW_SGI_MACE 0x160001 /* --- XSCALE on-chip adapters */ #define I2C_HW_IOP3XX 0x140000 @@ -255,17 +199,10 @@ #define I2C_HW_SMBUS_W9968CF 0x04000d #define I2C_HW_SMBUS_OV511 0x04000e /* OV511(+) USB 1.1 webcam ICs */ #define I2C_HW_SMBUS_OV518 0x04000f /* OV518(+) USB 1.1 webcam ICs */ -#define I2C_HW_SMBUS_OV519 0x040010 /* OV519 USB 1.1 webcam IC */ #define I2C_HW_SMBUS_OVFX2 0x040011 /* Cypress/OmniVision FX2 webcam */ #define I2C_HW_SMBUS_CAFE 0x040012 /* Marvell 88ALP01 "CAFE" cam */ #define I2C_HW_SMBUS_ALI1563 0x040013 -/* --- ISA pseudo-adapter */ -#define I2C_HW_ISA 0x050000 - -/* --- IPMB adapter */ -#define I2C_HW_IPMB 0x0c0000 - /* --- MCP107 adapter */ #define I2C_HW_MPC107 0x0d0000 diff --git a/include/linux/i2c.h b/include/linux/i2c.h index a100c9f8eb7..76014f8f3c6 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -140,7 +140,6 @@ struct i2c_driver { int (*command)(struct i2c_client *client,unsigned int cmd, void *arg); struct device_driver driver; - struct list_head list; }; #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver) @@ -155,12 +154,11 @@ struct i2c_driver { * generic enough to hide second-sourcing and compatible revisions. * @adapter: manages the bus segment hosting this I2C device * @driver: device's driver, hence pointer to access routines - * @usage_count: counts current number of users of this client * @dev: Driver model device node for the slave. * @irq: indicates the IRQ generated by this device (if any) * @driver_name: Identifies new-style driver used with this device; also * used as the module name for hotplug/coldplug modprobe support. - * @list: list of active/busy clients + * @list: list of active/busy clients (DEPRECATED) * @released: used to synchronize client releases & detaches and references * * An i2c_client identifies a single device (i.e. chip) connected to an @@ -175,16 +173,16 @@ struct i2c_client { char name[I2C_NAME_SIZE]; struct i2c_adapter *adapter; /* the adapter we sit on */ struct i2c_driver *driver; /* and our access routines */ - int usage_count; /* How many accesses currently */ - /* to the client */ struct device dev; /* the device structure */ int irq; /* irq issued by device (or -1) */ char driver_name[KOBJ_NAME_LEN]; - struct list_head list; + struct list_head list; /* DEPRECATED */ struct completion released; }; #define to_i2c_client(d) container_of(d, struct i2c_client, dev) +extern struct i2c_client *i2c_verify_client(struct device *dev); + static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) { struct device * const dev = container_of(kobj, struct device, kobj); @@ -261,6 +259,12 @@ i2c_new_probed_device(struct i2c_adapter *adap, struct i2c_board_info *info, unsigned short const *addr_list); +/* For devices that use several addresses, use i2c_new_dummy() to make + * client handles for the extra addresses. + */ +extern struct i2c_client * +i2c_new_dummy(struct i2c_adapter *adap, u16 address, const char *type); + extern void i2c_unregister_device(struct i2c_client *); /* Mainboard arch_initcall() code should register all its I2C devices. @@ -319,8 +323,7 @@ struct i2c_adapter { struct device dev; /* the adapter device */ int nr; - struct list_head clients; - struct list_head list; + struct list_head clients; /* DEPRECATED */ char name[48]; struct completion dev_released; }; @@ -357,10 +360,10 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data) * command line */ struct i2c_client_address_data { - unsigned short *normal_i2c; - unsigned short *probe; - unsigned short *ignore; - unsigned short **forces; + const unsigned short *normal_i2c; + const unsigned short *probe; + const unsigned short *ignore; + const unsigned short * const *forces; }; /* Internal numbers to terminate lists */ @@ -389,11 +392,8 @@ static inline int i2c_add_driver(struct i2c_driver *driver) extern int i2c_attach_client(struct i2c_client *); extern int i2c_detach_client(struct i2c_client *); -/* Should be used to make sure that client-struct is valid and that it - is okay to access the i2c-client. - returns -ENODEV if client has gone in the meantime */ -extern int i2c_use_client(struct i2c_client *); -extern int i2c_release_client(struct i2c_client *); +extern struct i2c_client *i2c_use_client(struct i2c_client *client); +extern void i2c_release_client(struct i2c_client *client); /* call the i2c_client->command() of all attached clients with * the given arguments */ @@ -405,7 +405,7 @@ extern void i2c_clients_command(struct i2c_adapter *adap, * specific address (unless a 'force' matched); */ extern int i2c_probe(struct i2c_adapter *adapter, - struct i2c_client_address_data *address_data, + const struct i2c_client_address_data *address_data, int (*found_proc) (struct i2c_adapter *, int, int)); extern struct i2c_adapter* i2c_get_adapter(int id); @@ -598,104 +598,93 @@ I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \ "additionally"); \ I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \ "scan"); \ -static struct i2c_client_address_data addr_data = { \ +const static struct i2c_client_address_data addr_data = { \ .normal_i2c = normal_i2c, \ .probe = probe, \ .ignore = ignore, \ .forces = forces, \ } +#define I2C_CLIENT_FORCE_TEXT \ + "List of adapter,address pairs to boldly assume to be present" + /* These are the ones you want to use in your own drivers. Pick the one which matches the number of devices the driver differenciates between. */ -#define I2C_CLIENT_INSMOD \ - I2C_CLIENT_MODULE_PARM(force, \ - "List of adapter,address pairs to boldly assume " \ - "to be present"); \ - static unsigned short *forces[] = { \ - force, \ - NULL \ - }; \ +#define I2C_CLIENT_INSMOD \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ +static const unsigned short * const forces[] = { force, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_1(chip1) \ enum chips { any_chip, chip1 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ -static unsigned short *forces[] = { force, force_##chip1, NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_2(chip1, chip2) \ enum chips { any_chip, chip1, chip2 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \ enum chips { any_chip, chip1, chip2, chip3 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \ enum chips { any_chip, chip1, chip2, chip3, chip4 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - force_##chip4, NULL}; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, \ + force_##chip4, NULL}; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \ enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - force_##chip4, force_##chip5, \ - NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, \ + force_##chip4, force_##chip5, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \ enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - force_##chip4, force_##chip5, \ - force_##chip6, NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, \ + force_##chip4, force_##chip5, force_##chip6, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \ enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ chip7 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ @@ -703,18 +692,16 @@ I2C_CLIENT_MODULE_PARM_FORCE(chip4); \ I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - force_##chip4, force_##chip5, \ - force_##chip6, force_##chip7, \ - NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, \ + force_##chip4, force_##chip5, force_##chip6, \ + force_##chip7, NULL }; \ I2C_CLIENT_INSMOD_COMMON #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \ enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ chip7, chip8 }; \ -I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to " \ - "boldly assume to be present"); \ +I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \ I2C_CLIENT_MODULE_PARM_FORCE(chip1); \ I2C_CLIENT_MODULE_PARM_FORCE(chip2); \ I2C_CLIENT_MODULE_PARM_FORCE(chip3); \ @@ -723,11 +710,10 @@ I2C_CLIENT_MODULE_PARM_FORCE(chip5); \ I2C_CLIENT_MODULE_PARM_FORCE(chip6); \ I2C_CLIENT_MODULE_PARM_FORCE(chip7); \ I2C_CLIENT_MODULE_PARM_FORCE(chip8); \ -static unsigned short *forces[] = { force, force_##chip1, \ - force_##chip2, force_##chip3, \ - force_##chip4, force_##chip5, \ - force_##chip6, force_##chip7, \ - force_##chip8, NULL }; \ +static const unsigned short * const forces[] = { force, \ + force_##chip1, force_##chip2, force_##chip3, \ + force_##chip4, force_##chip5, force_##chip6, \ + force_##chip7, force_##chip8, NULL }; \ I2C_CLIENT_INSMOD_COMMON #endif /* __KERNEL__ */ #endif /* _LINUX_I2C_H */ diff --git a/include/asm-arm/arch-omap/tps65010.h b/include/linux/i2c/tps65010.h index b9aa2b3a390..7021635ed6a 100644 --- a/include/asm-arm/arch-omap/tps65010.h +++ b/include/linux/i2c/tps65010.h @@ -1,4 +1,4 @@ -/* linux/include/asm-arm/arch-omap/tps65010.h +/* linux/i2c/tps65010.h * * Functions to access TPS65010 power management device. * @@ -25,8 +25,8 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#ifndef __ASM_ARCH_TPS65010_H -#define __ASM_ARCH_TPS65010_H +#ifndef __LINUX_I2C_TPS65010_H +#define __LINUX_I2C_TPS65010_H /* * ---------------------------------------------------------------------------- @@ -152,5 +152,5 @@ extern int tps65010_config_vregs1(unsigned value); */ extern int tps65013_set_low_pwr(unsigned mode); -#endif /* __ASM_ARCH_TPS65010_H */ +#endif /* __LINUX_I2C_TPS65010_H */ diff --git a/include/linux/ide.h b/include/linux/ide.h index 1e4409937ec..27cb39de2ae 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -107,7 +107,6 @@ typedef unsigned char byte; /* used everywhere */ #define BAD_W_STAT (BAD_R_STAT | WRERR_STAT) #define BAD_STAT (BAD_R_STAT | DRQ_STAT) #define DRIVE_READY (READY_STAT | SEEK_STAT) -#define DATA_READY (DRQ_STAT) #define BAD_CRC (ABRT_ERR | ICRC_ERR) @@ -198,8 +197,11 @@ typedef struct hw_regs_s { } hw_regs_t; struct hwif_s * ide_find_port(unsigned long); +void ide_init_port_data(struct hwif_s *, unsigned int); +void ide_init_port_hw(struct hwif_s *, hw_regs_t *); -int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int, +struct ide_drive_s; +int ide_register_hw(hw_regs_t *, void (*)(struct ide_drive_s *), struct hwif_s **); void ide_setup_ports( hw_regs_t *hw, @@ -391,7 +393,6 @@ typedef struct ide_drive_s { u8 state; /* retry state */ u8 waiting_for_dma; /* dma currently in progress */ u8 unmask; /* okay to unmask other irqs */ - u8 bswap; /* byte swap data */ u8 noflush; /* don't attempt flushes */ u8 dsc_overlap; /* DSC overlap */ u8 nice1; /* give potential excess bandwidth */ @@ -527,31 +528,26 @@ typedef struct hwif_s { /* special host masking for drive selection */ void (*maskproc)(ide_drive_t *, int); /* check host's drive quirk list */ - int (*quirkproc)(ide_drive_t *); + void (*quirkproc)(ide_drive_t *); /* driver soft-power interface */ int (*busproc)(ide_drive_t *, int); #endif u8 (*mdma_filter)(ide_drive_t *); u8 (*udma_filter)(ide_drive_t *); - void (*fixup)(struct hwif_s *); - void (*ata_input_data)(ide_drive_t *, void *, u32); void (*ata_output_data)(ide_drive_t *, void *, u32); void (*atapi_input_bytes)(ide_drive_t *, void *, u32); void (*atapi_output_bytes)(ide_drive_t *, void *, u32); + void (*dma_host_set)(ide_drive_t *, int); int (*dma_setup)(ide_drive_t *); void (*dma_exec_cmd)(ide_drive_t *, u8); void (*dma_start)(ide_drive_t *); int (*ide_dma_end)(ide_drive_t *drive); - int (*ide_dma_on)(ide_drive_t *drive); - void (*dma_off_quietly)(ide_drive_t *drive); int (*ide_dma_test_irq)(ide_drive_t *drive); void (*ide_dma_clear_irq)(ide_drive_t *drive); - void (*dma_host_on)(ide_drive_t *drive); - void (*dma_host_off)(ide_drive_t *drive); void (*dma_lost_irq)(ide_drive_t *drive); void (*dma_timeout)(ide_drive_t *drive); @@ -874,14 +870,6 @@ extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t); extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); -/* - * Issue ATA command and wait for completion. - * Use for implementing commands in kernel - * - * (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors, u8 *buf) - */ -extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *); - enum { IDE_TFLAG_LBA48 = (1 << 0), IDE_TFLAG_NO_SELECT_MASK = (1 << 1), @@ -934,6 +922,14 @@ enum { IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | IDE_TFLAG_IN_LBA, IDE_TFLAG_IN_DEVICE = (1 << 29), + IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | + IDE_TFLAG_IN_HOB, + IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | + IDE_TFLAG_IN_TF, + IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | + IDE_TFLAG_IN_DEVICE, + /* force 16-bit I/O operations */ + IDE_TFLAG_IO_16BIT = (1 << 30), }; struct ide_taskfile { @@ -988,6 +984,10 @@ void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); +void task_end_request(ide_drive_t *, struct request *, u8); + +u8 wait_drive_not_busy(ide_drive_t *); + int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); @@ -1015,10 +1015,9 @@ extern void do_ide_request(struct request_queue *); void ide_init_disk(struct gendisk *, ide_drive_t *); -extern int ideprobe_init(void); - #ifdef CONFIG_IDEPCI_PCIBUS_ORDER -extern void ide_scan_pcibus(int scan_direction) __init; +extern int ide_scan_direction; +int __init ide_scan_pcibus(void); extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) #else @@ -1095,6 +1094,8 @@ enum { /* unmask IRQs */ IDE_HFLAG_UNMASK_IRQS = (1 << 25), IDE_HFLAG_ABUSE_SET_DMA_MODE = (1 << 26), + /* host is CY82C693 */ + IDE_HFLAG_CY82C693 = (1 << 27), }; #ifdef CONFIG_BLK_DEV_OFFBOARD @@ -1109,7 +1110,6 @@ struct ide_port_info { void (*init_iops)(ide_hwif_t *); void (*init_hwif)(ide_hwif_t *); void (*init_dma)(ide_hwif_t *, unsigned long); - void (*fixup)(ide_hwif_t *); ide_pci_enablebit_t enablebits[2]; hwif_chipset_t chipset; u8 extra; @@ -1147,7 +1147,9 @@ static inline u8 ide_max_dma_mode(ide_drive_t *drive) return ide_find_dma_mode(drive, XFER_UDMA_6); } +void ide_dma_off_quietly(ide_drive_t *); void ide_dma_off(ide_drive_t *); +void ide_dma_on(ide_drive_t *); int ide_set_dma(ide_drive_t *); ide_startstop_t ide_dma_intr(ide_drive_t *); @@ -1158,10 +1160,7 @@ extern void ide_destroy_dmatable(ide_drive_t *); extern int ide_release_dma(ide_hwif_t *); extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int); -void ide_dma_host_off(ide_drive_t *); -void ide_dma_off_quietly(ide_drive_t *); -void ide_dma_host_on(ide_drive_t *); -extern int __ide_dma_on(ide_drive_t *); +void ide_dma_host_set(ide_drive_t *, int); extern int ide_dma_setup(ide_drive_t *); extern void ide_dma_start(ide_drive_t *); extern int __ide_dma_end(ide_drive_t *); @@ -1173,7 +1172,9 @@ extern void ide_dma_timeout(ide_drive_t *); static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } +static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } static inline void ide_dma_off(ide_drive_t *drive) { ; } +static inline void ide_dma_on(ide_drive_t *drive) { ; } static inline void ide_dma_verbose(ide_drive_t *drive) { ; } static inline int ide_set_dma(ide_drive_t *drive) { return 1; } #endif /* CONFIG_BLK_DEV_IDEDMA */ @@ -1203,8 +1204,9 @@ extern void ide_unregister (unsigned int index); void ide_register_region(struct gendisk *); void ide_unregister_region(struct gendisk *); -void ide_undecoded_slave(ide_hwif_t *); +void ide_undecoded_slave(ide_drive_t *); +int ide_device_add_all(u8 *idx); int ide_device_add(u8 idx[4]); static inline void *ide_get_hwifdata (ide_hwif_t * hwif) @@ -1302,4 +1304,9 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) return &hwif->drives[(drive->dn ^ 1) & 1]; } +static inline void ide_set_irq(ide_drive_t *drive, int on) +{ + drive->hwif->OUTB(drive->ctl | (on ? 0 : 2), IDE_CONTROL_REG); +} + #endif /* _IDE_H */ diff --git a/include/linux/m41t00.h b/include/linux/m41t00.h deleted file mode 100644 index b423360ca38..00000000000 --- a/include/linux/m41t00.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Definitions for the ST M41T00 family of i2c rtc chips. - * - * Author: Mark A. Greer <mgreer@mvista.com> - * - * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - */ - -#ifndef _M41T00_H -#define _M41T00_H - -#define M41T00_DRV_NAME "m41t00" -#define M41T00_I2C_ADDR 0x68 - -#define M41T00_TYPE_M41T00 0 -#define M41T00_TYPE_M41T81 81 -#define M41T00_TYPE_M41T85 85 - -struct m41t00_platform_data { - u8 type; - u8 i2c_addr; - u8 sqw_freq; -}; - -/* SQW output disabled, this is default value by power on */ -#define M41T00_SQW_DISABLE (0) - -#define M41T00_SQW_32KHZ (1<<4) /* 32.768 KHz */ -#define M41T00_SQW_8KHZ (2<<4) /* 8.192 KHz */ -#define M41T00_SQW_4KHZ (3<<4) /* 4.096 KHz */ -#define M41T00_SQW_2KHZ (4<<4) /* 2.048 KHz */ -#define M41T00_SQW_1KHZ (5<<4) /* 1.024 KHz */ -#define M41T00_SQW_512HZ (6<<4) /* 512 Hz */ -#define M41T00_SQW_256HZ (7<<4) /* 256 Hz */ -#define M41T00_SQW_128HZ (8<<4) /* 128 Hz */ -#define M41T00_SQW_64HZ (9<<4) /* 64 Hz */ -#define M41T00_SQW_32HZ (10<<4) /* 32 Hz */ -#define M41T00_SQW_16HZ (11<<4) /* 16 Hz */ -#define M41T00_SQW_8HZ (12<<4) /* 8 Hz */ -#define M41T00_SQW_4HZ (13<<4) /* 4 Hz */ -#define M41T00_SQW_2HZ (14<<4) /* 2 Hz */ -#define M41T00_SQW_1HZ (15<<4) /* 1 Hz */ - -extern ulong m41t00_get_rtc_time(void); -extern int m41t00_set_rtc_time(ulong nowtime); - -#endif /* _M41T00_H */ diff --git a/include/media/v4l2-i2c-drv-legacy.h b/include/media/v4l2-i2c-drv-legacy.h index 241854229d6..e7645578fc2 100644 --- a/include/media/v4l2-i2c-drv-legacy.h +++ b/include/media/v4l2-i2c-drv-legacy.h @@ -34,7 +34,7 @@ struct v4l2_i2c_driver_data { }; static struct v4l2_i2c_driver_data v4l2_i2c_data; -static struct i2c_client_address_data addr_data; +static const struct i2c_client_address_data addr_data; static struct i2c_driver v4l2_i2c_driver_legacy; static char v4l2_i2c_drv_name_legacy[32]; diff --git a/kernel/printk.c b/kernel/printk.c index 423a8c765a5..3b7c968d0ef 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -702,9 +702,7 @@ asmlinkage int vprintk(const char *fmt, va_list args) loglev_char = default_message_loglevel + '0'; } - t = 0; - if (system_state != SYSTEM_BOOTING) - t = ktime_to_ns(ktime_get()); + t = cpu_clock(printk_cpu); nanosec_rem = do_div(t, 1000000000); tlen = sprintf(tbuf, "<%c>[%5lu.%06lu] ", diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c index a68425a5cc1..d8a5558a47b 100644 --- a/kernel/sysctl_check.c +++ b/kernel/sysctl_check.c @@ -1,6 +1,5 @@ #include <linux/stat.h> #include <linux/sysctl.h> -#include "../arch/s390/appldata/appldata.h" #include "../fs/xfs/linux-2.6/xfs_sysctl.h" #include <linux/sunrpc/debug.h> #include <linux/string.h> diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index f83b19daed1..4bf715d4cf2 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -1744,6 +1744,9 @@ int security_genfs_sid(const char *fstype, struct ocontext *c; int rc = 0, cmp = 0; + while (path[0] == '/' && path[1] == '/') + path++; + POLICY_RDLOCK; for (genfs = policydb.genfs; genfs; genfs = genfs->next) { diff --git a/sound/oss/waveartist.c b/sound/oss/waveartist.c index b48c72923a1..88490418f93 100644 --- a/sound/oss/waveartist.c +++ b/sound/oss/waveartist.c @@ -835,7 +835,7 @@ static struct audio_driver waveartist_audio_driver = { static irqreturn_t waveartist_intr(int irq, void *dev_id) { - wavnc_info *devc = (wavnc_info *)dev_id; + wavnc_info *devc = dev_id; int irqstatus, status; spin_lock(&waveartist_lock); diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c index 272ae38e9b1..bb7d744faff 100644 --- a/sound/ppc/keywest.c +++ b/sound/ppc/keywest.c @@ -34,8 +34,6 @@ static struct pmac_keywest *keywest_ctx; -#define I2C_DRIVERID_KEYWEST 0xFEBA - static int keywest_attach_adapter(struct i2c_adapter *adapter); static int keywest_detach_client(struct i2c_client *client); @@ -43,7 +41,6 @@ struct i2c_driver keywest_driver = { .driver = { .name = "PMac Keywest Audio", }, - .id = I2C_DRIVERID_KEYWEST, .attach_adapter = &keywest_attach_adapter, .detach_client = &keywest_detach_client, }; diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c index abac62866da..dab22cc97ea 100644 --- a/sound/soc/codecs/cs4270.c +++ b/sound/soc/codecs/cs4270.c @@ -234,7 +234,7 @@ static int cs4270_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, * lower three bits are determined via the AD2, AD1, and AD0 pins * (respectively). */ -static unsigned short normal_i2c[] = { +static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, I2C_CLIENT_END }; I2C_CLIENT_INSMOD; diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c index d5a8fc2cf8d..f1f6b9478af 100644 --- a/sound/soc/s3c24xx/neo1973_wm8753.c +++ b/sound/soc/s3c24xx/neo1973_wm8753.c @@ -573,7 +573,7 @@ static struct snd_soc_device neo1973_snd_devdata = { static struct i2c_client client_template; -static unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END }; /* Magic definition of all other variables and things */ I2C_CLIENT_INSMOD; 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