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Current implementation doesn't handle dcache_line_length
correctly that's why is better to use generic memcpy.
Cache optimized function could be good way howto improve
performance but must be based on benchmarking not blind
function like this.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Michal Simek <monstr@monstr.eu>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Simek <monstr@monstr.eu>
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Fix divide exception message to say "divide by zero".
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Signed-off-by: Michal Simek <monstr@monstr.eu>
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It is necessary for several drivers.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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I found several function which we don't use that's why I am removing them.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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Remove section mismatch - based on ppc aproach.
WARNING: vmlinux.o(.text+0x64834): Section mismatch in reference
from the function __pte_alloc_kernel() to the function .init.text:early_get_page()
The function __pte_alloc_kernel() references
the function __init early_get_page().
This is often because __pte_alloc_kernel lacks a __init
annotation or the annotation of early_get_page is wrong.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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_start is located in .text, which causes mismatch warnings with
machine_early_init() and start_kernel() in .init.text.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
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Function traces on Microblaze don't include IRQ entry and exit arrows,
i.e.
0) | memcpy_toiovec() {
0) ==========> |
0) | do_IRQ() {
...
0) <========== |
0) ! 5414.000 us | }
...because do_IRQ() doesn't have the proper attributes.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
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This change should be part of b26b2d494b659f988b4d75eb394dfa0ddac415c9
Origin description:
resource/PCI: align functions now return start of resource
As suggested by Linus, align functions should return the start
of a resource, not void. An update of "res->start" is no longer
necessary.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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bus->resource[] refs
This change should be part of 89a74ecccd1f78e51faf6287e5c0e93a92ac096e
Origin description:
PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.
This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.
Signed-off-by: Michal Simek <monstr@monstr.eu>
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git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
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The use of mfp_cfg_t causes build errors without including <mach/mfp.h>.
CC: stable@kernel.org
CC: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Jakob Viketoft <jakob.viketoft@bitsim.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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On/Off contains slash in the name, which causes warning during boot.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Fix the wrong variable used in cpu_is_pxa950().
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Update CPUID pattern of PXA9xx in head.S and fix the duplicate
entries for pxa935.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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The timeout value is in jiffies, so it should be using HZ, not a plain
number. Assume with HZ=100 '100' means 1s here and adapt accordingly.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Marc Zyngier <maz@misterjones.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Shen <paul.shen@marvell.com>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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"on/off button" was recently renamed to remove the slash character.
Follow that change in the pin polarity detection as well.
While at it, fix another cosmetic coding style flaw as well.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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- Bring in a CMDLINE that actually works and prints to the right tty
- Compile-in JFFS2 to boot into rootfs
- Remove unneeded options for Bluetooth and radio
- Disable CPU_FREQ as it makes the flash driver fail
Thanks Jonathan for spotting what I messed up.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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The patch adds initialization of FIQ related handlers to the Amstrad Delta
videophone board code. FIQ will be used instead of a traditional IRQ for
processing all GPIO generated interrupts, including a keyboard serial clock
line.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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GPIO line setup
In case of Amstrad Delta modem utilized GPIO line, interrupt is requested from
standard serial8250 driver code without first requesting the GPIO pin itself.
Even if it works with default OMAP GPIO interrupt handler, it appeared not
compatible with recent, optimized version of the board GPIO FIQ handler,
required for fast processing of interrupts generated by other GPIO pin that a
serial keyboard clock hangs off.
This patch fills the board specific modem initialization routine with common
GPIO line reservation and direction setup.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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the FIQ routine
This patch introduces an IRQ handler used for processing interrupts generated
by the FIQ handler when it decides there are data ready for processing.
The handler further invokes device specific interrupt routines based on
interrupt source counters passed from the FIQ handler.
The handler setup function is intended to be called from the board
provided init_machine() callback.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: Updated to include linux/io.h instead of plat/io.h
Signed-off-by: Tony Lindgren <tony@atomide.com>
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processing
This patch introduces a Fast Interrupt Request (FIQ) handler for Amstrad Delta
(E3) videophone. The handler's purpose is to process interrupts generated by a
GPIO line that a serial keyboard clock hangs off. It collects consecutive bits
into words, pushing them into a buffer, then requests a higher level interrupt
after one or more words are ready for further processing by a keyboard port
driver.
The handler also processes interrupts generated by two other GPIO lines, used
by other on-board supported devices, by simply requesting a higher level
interrupt, that in turn should invoke those device's specific irq handlers.
IRQ12 line, not used by OMAP1510 hardware (described as reserved), has been
choosen as a higher level interrupt source.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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compilation
Several ARM platforms/machines that use FIQ define their value of FIQ_START.
Since FIQ is not implemented for OMAP yet, this definition is missing from
OMAP header files.
Put an arbitrary value for FIQ_START into plat/irqs.h for OMAP. Even if not
used by the FIQ handler for Amstrad Delta, this is required for successfull
compilation of arch/arm/plat-omap/fiq.c that provides several
usefull functions.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Looks like CONFIG_FB_OMAP prevents somehow mounting root on MMC
at least on zoom3 for multi-omap. Disable CONFIG_FB until the
omap FB code is fixed.
This allows booting omap3_defconfig on various omaps. Tested on
2420-n8x0, 3430-n900, 3630-zoom3 and 4430-blaze. Note that n8x0
still has issues with starting user space because of TLS and
VFP.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
powernow-k8: Fix frequency reporting
x86: Fix parse_reservetop() build failure on certain configs
x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests
x86: Fix 'reservetop=' functionality
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The x86_64 call_rwsem_wait() treats the active state counter part of the
R/W semaphore state as being 16-bit when it's actually 32-bit (it's half
of the 64-bit state). It should do "decl %edx" not "decw %dx".
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It's too noisy.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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These are needed for mounting root on MMC on many boards.
Also disable CONFIG_WATCHDOG_NOWAYOUT, that can keep the
system from running with external watchdogs.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The bootloader on Nokia boards does not support updating
the kernel cmdline. For the other boards, the bootloader
provided cmdline will be used instead.
To mount root on n8x0, compile in also the MMC_OMAP.
It seems that the best way to mount root with the
new kernels on Nokia boards is to mount root on mmcblk0p2.
Note that n8x0 current has several issues booting with
omap3_defconfig: The bootloader has a 2MB limit for loading
kernels, so you may want to use kexec. Also ARMv6 does
not currently work with ARMv7 for VFP and TLS.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Enable 2430 omaps and the missing boards.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We cannot use the omap34xx_sram_init(). It needs to be implemented
for omap4. Otherwise we get an error and the system won't boot:
Unhandled fault: imprecise external abort (0x1406) at 0xea963e94
...
Fix this by adding a dummy omap44xx_sram_init().
Signed-off-by: Tony Lindgren <tony@atomide.com>
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These are currently non-muxable, so let's save some memory
and remove them. Otherwise we get the following warnings:
mux: Unknown ball offset 0x5e
mux: Unknown ball offset 0x60
mux: Unknown ball offset 0x62
...
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Otherwise we can get the following error:
error: variable 'tdo24m_mcspi_config' has initializer but incomplete type
...
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The show_mem() and mem_init() function are assuming that the page map is
contiguous and calculates the start and end page of a bank using (map +
pfn). This fails with SPARSEMEM where pfn_to_page() must be used.
Tested-by: Will Deacon <Will.Deacon@arm.com>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Zoom2 and 3 have UARTs only on the external debug board.
GPMC needs to be mapped early to use it for DEBUG_LL.
Additionally, 0xfb000000 overlaps with other areas, so
use 0xfa400000 for the virtual address instead.
Note that with the pending serial.c patches you need to
set console=ttyS0,115200n8 as it will be the only UART
mapped. To use DEBUG_LL, you need to pass also earlyprintk
in cmdline.
Cc: Allen Pais <allen.pais@ti.com>
Acked-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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scratchpad
This removes the dependency to the UART1 being available for storing
the debug configuration in uncompress.h. This will simplify the
DEBUG_LL UART configuration for boards that may not have UART1, or
have an external UART as it requires only one mapping for DEBUG_LL.
The patch has a few limitations. Basically now we're assuming that
the kernel uncompress code won't overlap with OMAP_UART_INFO. We also
assume the printascii is called at least once before paging_init in
order for addruart to have a chance to read the UART setup from
OMAP_UART_INFO.
As suggested by Cyril Chemparathy <cyril@ti.com>,
Vikram Pandita <vikram.pandita@ti.com> and
Kevin Hilman <khilman@deeprootsystems.com>. Based on an earlier
patch posted for Davinci by Cyril Chemparathy <cyril@ti.com>.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Otherwise we'll get an error about get_irqnr_and_base being defined
twice. Add an entry for omap4, and use ARCH_OMAP3 for omap3 instead of
ARCH_OMAP3430.
Also fix the check for omap1 to use ARCH_OMAP2PLUS to avoid having to
add ARCH_OMAP4 separately there.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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With F10, model 10, all valid frequencies are in the ACPI _PST table.
Cc: <stable@kernel.org> # 33.x 32.x
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
LKML-Reference: <1270065406-1814-6-git-send-email-bp@amd64.org>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Commit e67a807 ("x86: Fix 'reservetop=' functionality") added a
fixup_early_ioremap() call to parse_reservetop() and declared it
in io.h.
But asm/io.h was only included indirectly - and on some configs
not at all, causing a build failure on those configs.
Cc: Liang Li <liang.li@windriver.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Wang Chen <wangchen@cn.fujitsu.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1272621711-8683-1-git-send-email-liang.li@windriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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iop32x_defconfig:
In file included from include/linux/elf.h:7,
from kernel/elfcore.c:1:
arch/arm/include/asm/elf.h:101: warning: "struct task_struct" declared inside parameter list
arch/arm/include/asm/elf.h:101: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Test the just-allocated value for NULL rather than some other value.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,y;
statement S;
@@
x = \(kmalloc\|kcalloc\|kzalloc\)(...);
(
if ((x) == NULL) S
|
if (
- y
+ x
== NULL)
S
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Just to make sure that this driver won't run on StrongArm SA1100
when both SA1100 and SA1110 cpufreq drivers are built in (usually
in multimachine config). SA1100 driver already has similar check.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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They have StrongARM SA1110, not SA1100.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch fixes the preempt leak in the cpuidle path invoked from
cpu-hotplug. The fix is suggested by Russell King and is based
on x86 idea of calling init_idle() on the idle task when it's
re-used which also resets the preempt count amongst other things
dump:
BUG: scheduling while atomic: swapper/0/0x00000002
Modules linked in:
Backtrace:
[<c0024f90>] (dump_backtrace+0x0/0x110) from [<c0173bc4>] (dump_stack+0x18/0x1c)
r7:c02149e4 r6:c033df00 r5:c7836000 r4:00000000
[<c0173bac>] (dump_stack+0x0/0x1c) from [<c003b4f0>] (__schedule_bug+0x60/0x70)
[<c003b490>] (__schedule_bug+0x0/0x70) from [<c0174214>] (schedule+0x98/0x7b8)
r5:c7836000 r4:c7836000
[<c017417c>] (schedule+0x0/0x7b8) from [<c00228c4>] (cpu_idle+0xb4/0xd4)
# [<c0022810>] (cpu_idle+0x0/0xd4) from [<c0171dd8>] (secondary_start_kernel+0xe0/0xf0)
r5:c7836000 r4:c0205f40
[<c0171cf8>] (secondary_start_kernel+0x0/0xf0) from [<c002d57c>] (prm_rmw_mod_reg_bits+0x88/0xa4)
r7:c02149e4 r6:00000001 r5:00000001 r4:c7836000
Backtrace aborted due to bad frame pointer <c7837fbc>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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With CONFIG_KPROBES enabled two section are getting created which
leads to below build break.
LOG:
AS arch/arm/kernel/entry-armv.o
arch/arm/kernel/entry-armv.S: Assembler messages:
arch/arm/kernel/entry-armv.S:431: Error: symbol ret_from_exception is in a different section
arch/arm/kernel/entry-armv.S:490: Error: symbol ret_from_exception is in a different section
arch/arm/kernel/entry-armv.S:491: Error: symbol __und_usr_unknown is in a different section
This was introduced by commit 4260415f6a3b92c5c986398d96c314df37a4ccbf
Reported-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Upstream PV guests fail to boot because of a NULL pointer in
irq_force_complete_move(). It is possible that xen guests have
irq_desc->chip_data = NULL.
Test for NULL chip_data pointer before attempting to complete an irq move.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
LKML-Reference: <20100427152434.16193.49104.sendpatchset@prarit.bos.redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org> [2.6.33]
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (27 commits)
MIPS: Loongson 2F: Fix of problems introduced by -mfix-loongson2f-jump
MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds.
MIPS: Loongson 2F: Enable fixups of the latest binutils
MIPS: Loongson: Add CPU_LOONGSON2F_WORKAROUNDS
MIPS: Kconfig: Make Broadcom SoC support naming consistent
MIPS: BCM63xx: Update defconfig
MIPS: oprofile: Fix breakage when CONFIG_OPROFILE=m
STAGING: octeon-ethernet: Use proper phy addresses for Movidis hardware.
NET: mdio-octeon: Enable the hardware before using it.
I2C: Fix section mismatch errors in i2c-octeon.c
MIPS: Loongson: Fix LOONGSON_ADDRWIN_CFG macro.
MIPS: Loongson: Fix phys_mem_access_prot() check
MIPS: Loongson: Fix find_vga_mem_init()
MIPS: Loongson: Fix typo in gdium mach type string.
MIPS: Use CKSEG1ADDR for uncached handler
MIPS: Check for accesses beyond the end of the PGD.
MIPS: Use uasm_i_ds{r,l}l_safe() instead of uasm_i_ds{r,l}l() in tlbex.c
MIPS: Add uasm_i_dsrl_safe() and uasm_i_dsll_safe() to uasm.
MIPS: die() does not call die notifier chain
MIPS: Swarm, Littlesur: Enable PATA platform driver.
...
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