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2010-03-11OMAP2: cpu_is_omap2*: fix compile-time removal of unused codeKevin Hilman
Currently if omap2420 is defined but not omap2430, cpu_is_omap2430() is still defined as a macro, instead of #define'd to zero. This results in conditional cpu_is_omap2430() code still being compiled, and leads to possible compile/link errors. In particular for hwmod init. To fix, add extra #ifdefs to CPU check macros to ensure that the is_omap* macros are zero for each OMAP2 if they are not configured into the kernel. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap3: pandora: add missing i2c3 board_infoGrazvydas Ignotas
This will allow BQ27500 fuel gauge to function. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap: mach-omap2/io.c: fix function declarationsAaro Koskinen
Get rid of the following warnings: warning: non-ANSI function declaration of function [...] Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap: Fix gpio_resume_after_retentionSergio Aguirre
For omap4 case, this was wrongly writing GPIO_LEVELDETECTx registers with OMAP24XX_ offset and OMAP4_ offset. Bug introduced in commit: commit 3f1686a9bfe74979c6ad538c78039730f665f77e Author: Tony Lindgren <tony@atomide.com> Date: Mon Feb 15 09:27:25 2010 -0800 omap: Fix gpio.c for multi-omap for omap4 Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap3: Fix support for the LEDs connected to GPIO outputs on IGEP v2boardEnric Balletbo i Serra
Select CONFIG_LEDS_GPIO to enable IGEP v2 LED support and control of supported LEDs from userspace. Otherwise GPIO LEDs are exported as GPIO 26, 27 and 28 using the gpiolib framework. Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap: Checkpatch cleanup for blizzard.hAndrea Gelmini
arch/arm/plat-omap/include/plat/blizzard.h:9: ERROR: spaces prohibited around that ':' (ctx:WxW) Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap: pass the reboot command to the boot loaderAaro Koskinen
This patch follows the commit be093beb608edf821b45fe00a8a080fb5c6ed4af by Russell King: OMAP wishes to pass state to the boot loader upon reboot in order to instruct it whether to wait for USB-based reflashing or not. There is already a facility to do this via the reboot() syscall, except we ignore the string passed to machine_restart(). The patch adds the missing parameter to omap1_arch_reset() and omap_prcm_arch_reset(), and modifies the latter to pass the reboot command parameter to the boot loader instead of reboot mode (which is for kernel internal use only and cannot be modified by the userspace). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap2/3/4: mailbox: remove compiler warningSuman Anna
Remove a compiler warning in device-specific mailbox module. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11OMAP2: serial.c: Fix number of uarts in early_initThomas Weber
The omap_serial_early_init prints the following errors: Could not get uart4_ick Could not get uart4_fck because all the uarts available in omap_uart[] will be initialized. Only omap4430 and omap3630 have 4 uarts at the moment. This patch reduces the number of uarts when cpu is not omap4430 or omap3630. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap: Enable PM_RUNTIME in defconfigs to avoid USB compile errorsTony Lindgren
While waiting for the related USB patch, fix compile by enabling it in the defconfigs. As discussed at: http://thread.gmane.org/gmane.linux.usb.general/27432/focus=4460 Otherwise we'll get errors like: drivers/usb/core/hcd.c:1892: error: 'pm_wq' undeclared (first use in this function) drivers/usb/core/hcd.c:1892: error: (Each undeclared identifier is reported only once drivers/usb/core/hcd.c:1892: error: for each function it appears in.) Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap2: Update n8x0 defconfig to test multi-omap and DMA api changesTony Lindgren
Recent DMA API changes broke compile for tusb6010. While testing the fixes for tusb6010, I had to update the n8x0 defconfig quite a bit. Might as well merge it while at it to make it more usable as we're using this to test the multi-omap booting between V6 and V7 ARMs. Also, anybody using n8x0 with a current kernel will most likely want to mount root on the MMC instead of the onenand to keep the Maemo install intact. Enable I2C, REGULATOR, MMC, MFD, PM, and USB. Also change the root to /dev/mmcblk0p2 instead of the onenand. Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap2: add USB initialization for tusb6010Francisco Alecrim
Based on Kalle's and Tony's patches. Some variables re-organized and unused code removed. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Francisco Alecrim <francisco.alecrim@openbossa.org> [tony@atomide.com: this is needed to fix the related tusb6010 DMA API changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap4: Fix build break by moving omap_smc1 into a separate .SSantosh Shilimkar
This patch moves omap_smc1 function to a seperate omap44xx-smc.S file and sets compile flags as -Wa,-march=armv7-a. This fix was suggested by Tony Lindgren <tony@atomide.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [tony@atomide.com: otherwise multi-omap build with V6 and V7 breaks] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11omap2/3/4: ehci: avoid compiler error with touchbookFelipe Balbi
the early_param() call in board-omap3touchbook.c expands to: static const char __setup_str_early_touchbook_revision[] __section(.init.rodata) _aligned(1) = tbr; [...] and we have a non-const variable being added to the same section: static struct ehci_hcd_omap_platform_data ehci_pdata __section(.init.rodata); because of that, gcc generates a section type conflict which can (and actually should) be avoided by marking const every variable marked with __initconst. This patch fixes that for the ehci_hdc_omap_platform_data. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-03-11perf: export perf_trace_regs and perf_arch_fetch_caller_regsXiao Guangrong
Export perf_trace_regs and perf_arch_fetch_caller_regs since module will use these. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> [ use EXPORT_PER_CPU_SYMBOL_GPL() ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4B989C1B.2090407@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11perf, x86: Fix hw_perf_enable() event assignmentPeter Zijlstra
What happens is that we schedule badly like: <...>-1987 [019] 280.252808: x86_pmu_start: event-46/1300c0: idx: 0 <...>-1987 [019] 280.252811: x86_pmu_start: event-47/1300c0: idx: 1 <...>-1987 [019] 280.252812: x86_pmu_start: event-48/1300c0: idx: 2 <...>-1987 [019] 280.252813: x86_pmu_start: event-49/1300c0: idx: 3 <...>-1987 [019] 280.252814: x86_pmu_start: event-50/1300c0: idx: 32 <...>-1987 [019] 280.252825: x86_pmu_stop: event-46/1300c0: idx: 0 <...>-1987 [019] 280.252826: x86_pmu_stop: event-47/1300c0: idx: 1 <...>-1987 [019] 280.252827: x86_pmu_stop: event-48/1300c0: idx: 2 <...>-1987 [019] 280.252828: x86_pmu_stop: event-49/1300c0: idx: 3 <...>-1987 [019] 280.252829: x86_pmu_stop: event-50/1300c0: idx: 32 <...>-1987 [019] 280.252834: x86_pmu_start: event-47/1300c0: idx: 1 <...>-1987 [019] 280.252834: x86_pmu_start: event-48/1300c0: idx: 2 <...>-1987 [019] 280.252835: x86_pmu_start: event-49/1300c0: idx: 3 <...>-1987 [019] 280.252836: x86_pmu_start: event-50/1300c0: idx: 32 <...>-1987 [019] 280.252837: x86_pmu_start: event-51/1300c0: idx: 32 *FAIL* This happens because we only iterate the n_running events in the first pass, and reset their index to -1 if they don't match to force a re-assignment. Now, in our RR example, n_running == 0 because we fully unscheduled, so event-50 will retain its idx==32, even though in scheduling it will have gotten idx=0, and we don't trigger the re-assign path. The easiest way to fix this is the below patch, which simply validates the full assignment in the second pass. Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1268311069.5037.31.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11perf, ppc: Fix compile error due to new cpu notifiersPeter Zijlstra
Fix: arch/powerpc/kernel/perf_event.c:1334: error: 'power_pmu_notifier' undeclared (first use in this function) arch/powerpc/kernel/perf_event.c:1334: error: (Each undeclared identifier is reported only once arch/powerpc/kernel/perf_event.c:1334: error: for each function it appears in.) arch/powerpc/kernel/perf_event.c:1334: error: implicit declaration of function 'power_pmu_notifier' arch/powerpc/kernel/perf_event.c:1334: error: implicit declaration of function 'register_cpu_notifier' Due to commit 3f6da390 (perf: Rework and fix the arch CPU-hotplug hooks). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11x86: Reduce per cpu warning boot up messagesMike Travis
Reduce warning message output to one line only instead of per cpu. Signed-of-by: Mike Travis <travis@sgi.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Brian Gerst <brgerst@gmail.com> Cc: x86@kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11x86: Reduce per cpu MCA boot up messagesMike Travis
Don't write per cpu MCA boot up messages. Signed-of-by: Mike Travis <travis@sgi.com> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: x86@kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11microblaze: entry.S use delay slot for return handlersMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Save current task directlyMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Simplify entry.S - save/restore r3/r4 - ret_from_trapMichal Simek
There is possible to save r3/r4 at the beggining of user part before calling handlers and at the end restore it. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: PCI early support for noMMU systemMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Fix dma alloc and free coherent dma functionsMichal Simek
We have to use consistent code to be able to do coherent dma function. In consistent code is used cache inhibit page mapping. Xilinx reported that there is bug in Microblaze for WB and d-cache_always use option. Microblaze 7.30.a should be first version where is this bug removed. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add consistent codeMichal Simek
Remove ancient Kconfig option for consistent code. MMU uses cache inhibit pages. noMMU uses UNCACHE SHADOW feature where is used double ram size. For example: Physical ram is 256MB and cache are setup to cover the same size. But if you setup in HW that size is 512MB and cache covers 256MB than you can use adresses from 256-512MB without caches and correspond with 0-256MB with cache. That's why I am using dcache base/high addresses to find out uncache area. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: pgtable.h: move consistent functionsMichal Simek
Consistent functions will be used for noMMU and MMU kernels. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Remove ancient Kconfig option for consistent mappingMichal Simek
We don't use CONSISTENT option from Kconfig that's why I am removing them. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Remove VMALLOC_VMADDRMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add define for ASM_LOOPMichal Simek
It is default option but both options must be measured. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Preliminary support for dma driversMichal Simek
I found several problems for ll_temac driver and on system with WB. This early fix should fix it. I will clean this patch before I will add it to mainline Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: remove trailing space in messagesFrans Pop
Signed-off-by: Frans Pop <elendil@planet.nl> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Use generic show_mem()Michal Simek
Remove arch-specific show_mem() in favor of the generic version. It is based on powerpc patch. bda2fa535564ace56a395d5b65c6dc81305401fa Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Change temp register for cmdlineMichal Simek
For copy was used r7 register when CONFIG_CMDLINE_BOOL option is enabled. But r7 stores pointer to fdt that's why machine_early_init not detect compiled-in DTB. I also moved kernel PID setup to have TLB init in one block Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Preliminary support for dma driversMichal Simek
I found several problems for ll_temac driver and on system with WB. This early fix should fix it. I will clean this patch before I will add it to mainline Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Move cache function to cache.cMichal Simek
It is better to have init cache handling on one place. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add support from PREEMPTMichal Simek
This patch add core PREEMPT support for Microblaze. I tried to trace it via tracers and I was able to see any output. I also added low level debug functions to see if that code is called. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add support for Xilinx PCI host bridgeMichal Simek
This patch is based on powerpc patch 64f16502475ddf663169369fffff6da9b10ea9fb We did some cleanups and removed powerpc parts. There is one new debug early listing function too. Exclude function is only in Debug options. We tested in on custom board. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Enable PCI, missing filesMichal Simek
There are two parts of changes. The first is just enable PCI in Makefiles and in Kconfig. The second is the rest of missing files. I didn't want to add it with previous patch because that patch is too big. Current Microblaze toolchain has problem with weak symbols that's why is necessary to apply this changes to be possible to compile pci support. Xilinx knows about this problem. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add core PCI filesMichal Simek
Add pci-common.h and pci32.c. Files are based on PPC version. There are removed ppc specific parts and the code was completely clean. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add pci-bridge.hMichal Simek
Add pci-bridge.h for Microblaze. It is based on powerpc header file. My changes: I removed PPC_ prefix from constants Removed ppc64 specifis parts Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add pci.hMichal Simek
Add pci.h for microblaze. It is based on powerpc pci.h Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: io.h include asm-generic/iomap.hMichal Simek
I need to use generic/iomap.h for PCI that's why is necessary to include it and fix ioport_{map,unmap} functions. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add irq_create_{of_,}mapping functionsMichal Simek
Support function for PCI. We don't use any advance mapping mechanism that's why implementation is simple. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add {z,}alloc_maybe_bootmem functionsMichal Simek
I will need {z,}alloc_maybe_bootmem functions for pci patches Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Implement __dma_sync_pageMichal Simek
There is necessary to do some cache handling for dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Support DMAMichal Simek
Add DMA support for Microblaze. There are some part of this new feature: 1. Basic DMA support 2. Enable DMA debug option 3. Setup notifier Ad 1. dma-mapping come from powerpc and x86 version and it is based on generic dma-mapping-common.h Ad 2. DMA support debug features which is used in generic file. For more information please look at Documentation/DMA-API.txt Ad 3. notifier is very important to setup dma_ops. Without this part for example ll_temac driver failed because there are no setup dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11x86/mce: Fix RCU lockdep splatsPaul E. McKenney
Create an rcu_dereference_check_mce() that checks for RCU-sched read side and mce_read_mutex being held on update side. Replace uses of rcu_dereference() in arch/x86/kernel/cpu/mcheck/mce.c with this new macro. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267830207-9474-3-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-10powerpc/52xx: update defconfigsGrant Likely
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-03-10perf: Introduce new perf_fetch_caller_regs() for hot regs snapshotFrederic Weisbecker
Events that trigger overflows by interrupting a context can use get_irq_regs() or task_pt_regs() to retrieve the state when the event triggered. But this is not the case for some other class of events like trace events as tracepoints are executed in the same context than the code that triggered the event. It means we need a different api to capture the regs there, namely we need a hot snapshot to get the most important informations for perf: the instruction pointer to get the event origin, the frame pointer for the callchain, the code segment for user_mode() tests (we always use __KERNEL_CS as trace events always occur from the kernel) and the eflags for further purposes. v2: rename perf_save_regs to perf_fetch_caller_regs as per Masami's suggestion. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Archs <linux-arch@vger.kernel.org>
2010-03-10perf/x86-64: Use frame pointer to walk on irq and process stacksFrederic Weisbecker
We were using the frame pointer based stack walker on every contexts in x86-32, but not in x86-64 where we only use the seven-league boots on the exception stacks. Use it also on irq and process stacks. This utterly accelerate the captures. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
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