Commit Graph

8186 Commits

Author SHA1 Message Date
viresh kumar 55a07517ed ARM: 6001/1: removing compilation warning comming from clkdev.h
clkdev.h is using struct device *. Due to this compilation
warning is comming. Removing this warning.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29 17:33:32 +01:00
viresh kumar aedceb2a49 ARM: 6000/1: removing compilation warning comming from <asm/irq.h>
irq.h is using struct pt_regs *. Due to this compilation
warning is comming. Removing this warning by adding declaration
of struct pt_regs.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-29 17:33:31 +01:00
Catalin Marinas 325ffc3633 ARM: 5997/1: ARM: Correct the VFPv3 detection
A CPU has VFPv3 hardware if the FPSID[19:16] bits are 2 or more.
Currently Linux was only checking for 3 or more.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-28 10:40:14 +01:00
Catalin Marinas e7c5650f60 ARM: 5996/1: ARM: Change the mandatory barriers implementation (4/4)
The mandatory barriers (mb, rmb, wmb) are used even on uniprocessor
systems for things like ordering Normal Non-cacheable memory accesses
with DMA transfer (via Device memory writes). The current implementation
uses dmb() for mb() and friends but this is not sufficient. The DMB only
ensures the relative ordering of the observability of accesses by other
processors or devices acting as masters. In case of DMA transfers
started by writes to device memory, the relative ordering is not ensured
because accesses to slave ports of a device are not considered
observable by the DMB definition.

A DSB is required for the data to reach the main memory (even if mapped
as Normal Non-cacheable) before the device receives the notification to
begin the transfer. Furthermore, some L2 cache controllers (like L2x0 or
PL310) buffer stores to Normal Non-cacheable memory and this would need
to be drained with the outer_sync() function call.

The patch also allows platforms to define their own mandatory barriers
implementation by selecting CONFIG_ARCH_HAS_BARRIERS and providing a
mach/barriers.h file.

Note that the SMP barriers are unchanged (being DMBs as before) since
they are only guaranteed to work with Normal Cacheable memory.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-25 21:13:50 +00:00
Catalin Marinas 23107c5420 ARM: 5995/1: ARM: Add L2x0 outer_sync() support (3/4)
The L2x0 cache controllers need to explicitly drain their write buffer
even for Normal Noncacheable memory accesses.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-25 21:13:50 +00:00
Catalin Marinas 319f551a0a ARM: 5994/1: ARM: Add outer_cache_fns.sync function pointer (2/4)
This patch introduces the outer_cache_fns.sync function pointer together
with the OUTER_CACHE_SYNC config option that can be used to drain the
write buffer of the outer cache.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-25 21:13:49 +00:00
Catalin Marinas 33f663ff91 ARM: 5993/1: ARM: Move the outer_cache definitions into a separate file (1/4)
To avoid #include collisions with subsequent patches in the series, this
patch moves the outer_cache definitions to a separate asm/outercache.h
file.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-25 21:13:49 +00:00
Christian Lamparter bb45692891 [ARM] Orion5x: replace KEY_WLAN with KEY_WPS_BUTTON
"Input: add KEY_WPS_BUTTON definition" introduced
a generic keycode for WPS input events.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2010-03-23 13:48:15 -04:00
Christian Lamparter 9705c3961e [ARM] Kirkwood: WPS button keycode mapping
Commit "Input: add KEY_WPS_BUTTON definition"
added a generic keycode for WPS button.
Let's use it, instead of "F1" mapping.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2010-03-23 13:48:14 -04:00
Russell King 4f4669ee73 Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 2010-03-23 08:18:25 +00:00
Daniel Mack fe3ebaad32 [ARM] pxa/raumfeld: fix button name
This fixes a warning when booting 2.6.34-rc2:

[   26.619814] ------------[ cut here ]------------
[   26.624604] WARNING: at fs/proc/generic.c:316 __xlate_proc_name+0xac/0xc0()
[   26.631555] name 'on/off button'
[   26.634753] Modules linked in:

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:11 +08:00
Huang Weiyi af089f517a [ARM] pxa/raumfeld: remove duplicated #include
Remove duplicated #include('s) in
 arch/arm/mach-pxa/raumfeld.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:10 +08:00
H Hartley Sweeten c8c3dcb9df [ARM] locomo: fix unpaired spin_lock_irqsave
The function locomo_m62332_senddata sends a three byte i2c message to
a M62332 DAC. This entire function is guarded with a spin_lock_irqsave
at the start of the function and a spin_unlock_irqrestore at the end.

As each byte is transferred, the i2c ACK from the DAC is checked.
Currently, if the ACK is missing the function simply returns without
the unlock. It also leaves the i2c bus in an invalid state since the
last byte transferred did not have a "stop" condition and leave the
bus idle.

Fix this by adding an exit path using goto.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:09 +08:00
H Hartley Sweeten 1b0d76cb9d [ARM] locomo: fix SPI register offset
The locomo spi registers are all defined in locomo.h as offsets
from the first spi register LOCOMO_SPI (0x60), which is itself
an offset from the locomo base address.  To correctly access
these registers LOCOMO_SPI must always be included in the
address calculation.

There are two places in locomo.c where this is not done.  The
first one, in locomo_suspend, actually results in a write to
LOCOMO_ST instead of LOCOMO_SPICT.  The second is in __locomo_probe
and results in a write to LOCOMO_MCSX2 instead of LOCOMO_SPIIE.

Fix these by including LOCOMO_SPI in the calculation.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:08 +08:00
Eric Miao 6533be390b [ARM] pxa/sharpsl: add dependency of max1111 driver to sharpsl_pm
sharpsl_pm.c actually depends on max1111 driver being built-in when
not using legacy ssp code.

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:07 +08:00
Eric Miao 1fe2b6b527 [ARM] pxa: remove unnecessary 'select FB_W100' from some platforms
Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:06 +08:00
Jonathan Cameron ef80936f99 [ARM] pxa: remove spi cs gpio direction to avoid clash with driver
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:06 +08:00
Eric Miao 7471f46d74 [ARM] mmp: fix for variables in uncompress.h being discarded
Due to commit:

    5de813b  ARM: Eliminate decompressor -Dstatic= PIC hack

The data section will be discarded for the decompressor, thus move the
static variables into BSS section by initializing them at run time.

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:05 +08:00
Jonathan Cameron 2a8ac187e0 [ARM] pxa: fix for variables in uncompress.h being discarded
Due to commit:

    5de813b  ARM: Eliminate decompressor -Dstatic= PIC hack

The data section will be discarded for the decompressor, thus move the
static variables into BSS section by initializing them at run time.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-22 12:03:04 +08:00
Russell King 48edcfcfbf ARM: Update mach-types
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-20 15:37:39 +00:00
Russell King 0372c38047 ARM: Fix IXP23xx build error in mach/memory.h
One to many close parens.

In file included from arch/arm/include/asm/page.h:202,
                 from include/linux/mm_types.h:15,
                 from include/linux/sched.h:63,
                 from arch/arm/kernel/asm-offsets.c:13:
arch/arm/include/asm/memory.h: In function 'virt_to_bus':
arch/arm/include/asm/memory.h:214: error: expected ';' before ')' token
arch/arm/include/asm/memory.h:214: error: expected statement before ')' token
arch/arm/include/asm/memory.h: In function 'bus_to_virt':
arch/arm/include/asm/memory.h:219: error: expected ';' before ')' token
arch/arm/include/asm/memory.h:219: error: expected statement before ')' token

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-20 15:33:09 +00:00
Linus Torvalds 9b59a0a4ee Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  ARM/OMAP: Remove the +x bit from a couple of source files
  omap: McBSP: Drop unnecessary status/error bit clearing on reg_cacheretrieved register values
  OMAP4: fix temporary hacks that break multi-omap PM
  OMAP2: cpu_is_omap2*: fix compile-time removal of unused code
  omap3: pandora: add missing i2c3 board_info
  omap: mach-omap2/io.c: fix function declarations
  omap: Fix gpio_resume_after_retention
  omap3: Fix support for the LEDs connected to GPIO outputs on IGEP v2board
  omap: Checkpatch cleanup for blizzard.h
  omap: pass the reboot command to the boot loader
  omap2/3/4: mailbox: remove compiler warning
  OMAP2: serial.c: Fix number of uarts in early_init
  omap: Enable PM_RUNTIME in defconfigs to avoid USB compile errors
  omap2: Update n8x0 defconfig to test multi-omap and DMA api changes
  omap2: add USB initialization for tusb6010
  omap4: Fix build break by moving omap_smc1 into a separate .S
  omap2/3/4: ehci: avoid compiler error with touchbook
  omap3: Fix compile for Touch Book early_param
2010-03-18 16:59:30 -07:00
Linus Torvalds c3a0bd7515 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (23 commits)
  ARM: Fix RiscPC decompressor build errors
  ARM: Fix sorting of platform group config options and includes
  ARM: 5991/1: Fix regression in restore_user_regs macro
  ARM: 5989/1: ARM: KGDB: add support for SMP platforms
  ARM: 5990/1: ARM: use __armv5tej_mmu_cache_flush for V5TEJ instead of __armv4_mmu_cache_flush
  ARM: Add final piece to fix XIP decompressor in read-only memory
  video: enable sh_mobile_lcdc on SH-Mobile ARM
  ARM: mach-shmobile: ap4evb SDHI0 platform data V2
  ARM: mach-shmobile: sh7372 SDHI vector merge
  ARM: mach-shmobile: sh7377 SDHI vector merge
  ARM: mach-shmobile: sh7367 SDHI vector merge
  ARM: mach-shmobile: G4EVM KEYSC platform data
  mtd: enable sh_flctl on SH-Mobile ARM
  ARM: mach-shmobile: G3EVM FLCTL platform data
  ARM: mach-shmobile: G3EVM KEYSC platform data
  Video: ARM CLCD: Better fix for swapped IENB and CNTL registers
  ARM: Add L2 cache handling to smp boot support
  ARM: 5960/1: ARM: perf-events: fix v7 event selection mask
  ARM: 5959/1: ARM: perf-events: request PMU interrupts with IRQF_NOBALANCING
  ARM: 5988/1: pgprot_dmacoherent() for non-mmu builds
  ...
2010-03-18 16:59:10 -07:00
Ben Dooks 0e17226f7c ARM: SAMSUNG: Fixup commit 4e6d488af3
Commit 4e6d488af3 either missed out the
following machine files or somehow managed to clash between merges.

Fixup the three files missing the second parameter to addruart macro
to allow them to build.

Fixes the following warnings in arch/arm/kernel/debug.c:
arch/arm/kernel/debug.S: Assembler messages:
arch/arm/kernel/debug.S:167: Error: too many positional arguments
arch/arm/kernel/debug.S:183: Error: too many positional arguments

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-15 23:11:41 +00:00
Ben Dooks 65e543f12c ARM: SAMSUNG: Fix build error from stale define in <plat/uncompress.h>
The decleration of error() as static in the platform specific uncompress
code in  arch/arm/plat-samsung/include/plat/uncomopress.h causes the build
of the uncompressor to break. Remove it, as it is no longer needed.

arch/arm/boot/compressed/decompress.o: In function `gunzip':
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:67: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:73: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:80: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:95: undefined reference to `error'
/var/tmp/kernel-orig/arch/arm/boot/compressed/../../../../lib/decompress_inflate.c:152: undefined reference to `error'

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-15 22:57:18 +00:00
Vasily Khoruzhick e79032aa75 ARM: SAMSUNG: Add suspend/resume support for S3C PWM driver
Reset period_ns and duty_ns values in suspend handler to avoid skip of
configuration if same values passed to pwm_config;
Restore invertion bit in resume handler.

Without this patch PWM works incorrectly after resume from suspend.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-15 22:43:33 +00:00
Vasily Khoruzhick 664e87e47e ARM: S3C2440: Fix s3c2440 cpufreq compilation post move.
Fix compilation issue by moving s3c2440-cpufreq.c into mach-s3c2440 directory

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-03-15 22:43:12 +00:00
Russell King 0d5e6f7ae8 ARM: Fix RiscPC decompressor build errors
arch/arm/boot/compressed/decompress.o: In function `do_decompress':
decompress.c:(.text+0x26e8): undefined reference to `error'
decompress.c:(.text+0x2760): undefined reference to `error'
decompress.c:(.text+0x27d8): undefined reference to `error'
decompress.c:(.text+0x2824): undefined reference to `error'
decompress.c:(.text+0x28f0): undefined reference to `error'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 22:04:54 +00:00
Russell King ccf50e2341 ARM: Fix sorting of platform group config options and includes
... and document the sorting criteria to help future additions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 19:03:06 +00:00
Anders Grafström 8e4971f2fb ARM: 5991/1: Fix regression in restore_user_regs macro
ARMv5T and earlier require that a ldm {}^ instruction is not followed
by an instruction that accesses banked registers. This patch restores
the nop that was lost in commit b86040a59f.

Signed-off-by: Anders Grafström <grfstrm@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 17:20:08 +00:00
Will Deacon 5d8614cc5d ARM: 5989/1: ARM: KGDB: add support for SMP platforms
To support SMP platforms, KGDB requires the architecture backend to
implement the kgdb_roundup_cpus function.

This patch, taken against 2.6.33, implements the function for ARM based
on the MIPS port.

Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Jean-Michel Hautbois <jhautbois@gmail.com>
Cc: KGDB Mailing List <kgdb-bugreport@lists.sourceforge.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 14:33:04 +00:00
Sascha Hauer 75216859d9 ARM: 5990/1: ARM: use __armv5tej_mmu_cache_flush for V5TEJ instead of __armv4_mmu_cache_flush
This got broken with commit 0e056f20

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 14:32:02 +00:00
Russell King b89ebadc34 ARM: Add final piece to fix XIP decompressor in read-only memory
This defines STATIC_RW_DATA, which prevents the read/write malloc
management data being declared with a static attribute.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-15 14:29:22 +00:00
Russell King 2d3b5fa3a3 Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/genesis-2.6 2010-03-15 14:27:06 +00:00
Magnus Damm 3a14d03977 ARM: mach-shmobile: ap4evb SDHI0 platform data V2
Add SDHI0 platform data for the AP4EVB board V2.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 12:06:47 +09:00
Magnus Damm c57a31abf0 ARM: mach-shmobile: sh7372 SDHI vector merge
Merge the SDHI vectors for sh7372 using the recently
merged INTC force_enable/disable feature.

With this in place SDHI hotplug is supported using
the drivers sh_mobile_sdhi and tmio_mmc.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 12:06:46 +09:00
Magnus Damm c148abfc2d ARM: mach-shmobile: sh7377 SDHI vector merge
Merge the SDHI vectors for sh7377 using the recently
merged INTC force_enable/disable feature.

With this in place SDHI hotplug is supported using
the drivers sh_mobile_sdhi and tmio_mmc.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 12:06:46 +09:00
Magnus Damm 9615b37c5c ARM: mach-shmobile: sh7367 SDHI vector merge
Merge the SDHI vectors for sh7367 using the recently
merged INTC force_enable/disable feature.

With this in place SDHI hotplug is supported using
the drivers sh_mobile_sdhi and tmio_mmc.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 12:06:45 +09:00
NISHIMOTO Hiroki 6676a1701b ARM: mach-shmobile: G4EVM KEYSC platform data
This patch adds KEYSC platform data for the G4EVM board.

Signed-off-by: NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 12:06:45 +09:00
Magnus Damm 143f3b833f ARM: mach-shmobile: G3EVM FLCTL platform data
This patch adds FLCTL platform data for the G3EVM board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 11:13:14 +09:00
Magnus Damm 03fb256df9 ARM: mach-shmobile: G3EVM KEYSC platform data
This patch adds KEYSC platform data for the G3EVM board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-15 11:13:13 +09:00
Russell King 1027247f6e ARM: Add L2 cache handling to smp boot support
The page table and secondary data which we're asking the secondary CPU
to make use of has to hit RAM to ensure that the secondary CPU can see
it since it may not be taking part in coherency or cache searches at
this point.

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-14 19:42:35 +00:00
Linus Torvalds 9fdfbc2bff Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Provide generic perf_sample_data initialization
  MAINTAINERS: Add Arnaldo as tools/perf/ co-maintainer
  perf trace: Don't use pager if scripting
  perf trace/scripting: Remove extraneous header read
  perf, ARM: Modify kuser rmb() call to compile for Thumb-2
  x86/stacktrace: Don't dereference bad frame pointers
  perf archive: Don't try to collect files without a build-id
  perf_events, x86: Fixup fixed counter constraints
  perf, x86: Restrict the ANY flag
  perf, x86: rename macro in ARCH_PERFMON_EVENTSEL_ENABLE
  perf, x86: add some IBS macros to perf_event.h
  perf, x86: make IBS macros available in perf_event.h
  hw-breakpoints: Remove stub unthrottle callback
  x86/hw-breakpoints: Remove the name field
  perf: Remove pointless breakpoint union
  perf lock: Drop the buffers multiplexing dependency
  perf lock: Fix and add misc documentally things
  percpu: Add __percpu sparse annotations to hw_breakpoint
2010-03-13 14:39:42 -08:00
Will Deacon d10fca9f39 ARM: 5960/1: ARM: perf-events: fix v7 event selection mask
The event selection mask for ARMv7 cores [ARMV7_EVTSEL_MASK]
is incorrectly set to 0x7f. This means that the top bit of an
event ID is ignored, so counting branch misses (id=0x10) and
ISBs (id=0x90) give the same results.

This patch sets the event selection mask to the correct value
of 0xff.

Signed-off-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:50:29 +00:00
Will Deacon ddee87f208 ARM: 5959/1: ARM: perf-events: request PMU interrupts with IRQF_NOBALANCING
If IRQ balancing is used on a multicore ARM system, PMU interrupt
lines may be relocated onto CPUs other than the one causing the
counter overflow. This can result in misattribution of events to
the wrong core and, in the case that the CPU handling the interrupt
has not experience counter overflow, the interrupt can be disabled
because the handler returns IRQ_NONE.

This patch adds the IRQF_NOBALANCING flag to the request_irq call
in perf_events.c.

Acked-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:50:28 +00:00
Greg Ungerer a91ed072d6 ARM: 5988/1: pgprot_dmacoherent() for non-mmu builds
Commit 26a26d3296 ("dma-mapping: switch
ARMv7 DMA mappings to retain 'memory' attribute") added a new macro,
pgprot_dmacoherent(), to correctly map DMA memory. The non-mmu pgtable
support code also needs to implement this macro, otherwise when
compiling you get:

  CC      arch/arm/mm/dma-mapping.o
arch/arm/mm/dma-mapping.c: In function 'dma_alloc_coherent':
arch/arm/mm/dma-mapping.c:320: error: implicit declaration of function 'pgprot_dmacoherent'
arch/arm/mm/dma-mapping.c:320: error: 'pgprot_kernel' undeclared (first use in this function)
arch/arm/mm/dma-mapping.c:320: error: (Each undeclared identifier is reported only once
arch/arm/mm/dma-mapping.c:320: error: for each function it appears in.)

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:48:22 +00:00
Mikael Pettersson bb35579b45 ARM: 5987/1: fix warning in kernel/elfcore.c from ARM's elf.h
2.6.34-rc1 added kernel/elfcore.c which includes <asm/elf.h>.
On ARM, this results in:

In file included from include/linux/elf.h:7,
                 from kernel/elfcore.c:1:
/tmp/linux-2.6.34-rc1/arch/arm/include/asm/elf.h:101: warning: 'struct task_struct' declared inside parameter list
/tmp/linux-2.6.34-rc1/arch/arm/include/asm/elf.h:101: warning: its scope is only this definition or declaration, which is probably not what you want

Including <linux/sched.h> seems a bit heavyweight, so this patch just
adds a tentative declaration of struct task_struct in <asm/elf.h>.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:48:22 +00:00
Rob Alley 438ff39d78 ARM: 5986/1: at91sam9g20-ek: Correct braces in I2C registration code
The change introduced in patch 5596/1 used incorrect bracing which
resulted in the AT24 EEPROM no longer being registered.  This patch
corrects the bracing and allows both the WM8731 audio device and AT24
EEPROM device to be registered.

Signed-off-by: Rob Alley <rob.alley@navmanwireless.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:48:21 +00:00
Mark Brown a2302b45d8 ARM: 5985/2: ARM: Fix Samsung build after "ARM: Eliminate decompressor -Dstatic= PIC hack"
Commit 5de813b6 (ARM: Eliminate decompressor -Dstatic= PIC hack) among
other things changed the declared type of the error() function to an
extern, conflicting with the forward declartion in the Samsung
plat/uncompress.h which appears to have been relying on the static
being defined away, causing build failures since error() ends up with
a GOT relocation but the linker script discards all GOT relocated
data and functions:

arch/arm/boot/compressed/decompress.o: In function `gunzip':
/home/broonie/git/linux-2.6/arch/arm/boot/compressed/../../../../lib/decompress_
+inflate.c:68: undefined reference to `error'

and so on. Fix this by moving the declaration into uncompress/misc.c
where it is shared with the rest of the code, correcting the definition
as we go.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-03-13 10:48:21 +00:00
Linus Torvalds c32da02342 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits)
  doc: fix typo in comment explaining rb_tree usage
  Remove fs/ntfs/ChangeLog
  doc: fix console doc typo
  doc: cpuset: Update the cpuset flag file
  Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed
  Remove drivers/parport/ChangeLog
  Remove drivers/char/ChangeLog
  doc: typo - Table 1-2 should refer to "status", not "statm"
  tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments
  No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h
  devres/irq: Fix devm_irq_match comment
  Remove reference to kthread_create_on_cpu
  tree-wide: Assorted spelling fixes
  tree-wide: fix 'lenght' typo in comments and code
  drm/kms: fix spelling in error message
  doc: capitalization and other minor fixes in pnp doc
  devres: typo fix s/dev/devm/
  Remove redundant trailing semicolons from macros
  fix typo "definetly" -> "definitely" in comment
  tree-wide: s/widht/width/g typo in comments
  ...

Fix trivial conflict in Documentation/laptops/00-INDEX
2010-03-12 16:04:50 -08:00