Commit Graph

42418 Commits

Author SHA1 Message Date
Uwe Kleine-König 321ed16436 imx/mx3: rename files defining a machine to mach-$mach.c
While at it remove some superfluous parenthesis.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
2010-01-08 16:40:51 +01:00
Mark Brown 3d661ac187 mx31ads: Provide an IRQ range to the WM835x on the 1133-EV1 module
The WM8350 core won't actually use the range yet, but it will in
future and the platform data to configure it is there now.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-05 17:08:54 +01:00
Mark Brown bd02acdbb2 mx31ads: Provide a name for EXPIO interrupt chip
This makes it a bit more obvious in genirq diagnostics that they
aren't handled by the i.MX interrupt controller.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-05 17:08:54 +01:00
Mark Brown 9f0727f5f4 mx31ads: Allow enable/disable of switchable supplies
They will be automatically powered off at startup so users will
need to enable them for use.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-05 13:29:47 +01:00
Mark Brown becc670a1b mx31ads: Allow enable/disable of switchable supplies
They will be automatically powered off at startup so users will
need to enable them for use.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-05 13:11:38 +01:00
Mark Brown edc34a9061 mx31ads: Convert 1133-EV1 to use dev_name to specify consumer devices
This means we don't need to go running round working out struct
devices at runtime.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-05 13:10:04 +01:00
Uwe Kleine-König 386c5cf7a9 imx/mx2: rename files defining a machine to mach-$mach.c
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Eric Benard <eric@eukrea.com>
2010-01-05 10:10:09 +01:00
Uwe Kleine-König f747f93543 imx: rename Kconfig symbol for "LogicPD MX27 LITEKIT platform"
Not using MACH_IMX27LITE makes machine_is_imx27lite always return 0
independent of building support for this machine.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Daniel Schaeffer <daniel.schaeffer@timesys.com>
2010-01-05 10:10:08 +01:00
Uwe Kleine-König bc727390f0 imx: rename Kconfig symbol for "Eukrea CPUIMX27 module"
Not using MACH_CPUIMX27 makes machine_is_cpuimx27 always return 0
independent of building support for this machine.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Benard <eric@eukrea.com>
2010-01-05 10:10:08 +01:00
Uwe Kleine-König 95c00464dd imx/mx1: rename files defining a machine to mach-$mach.c
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-01-05 10:10:08 +01:00
Uwe Kleine-König 5c4c62bcb2 imx/mx1: add newline at end of Makefile
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-01-05 10:10:07 +01:00
Uwe Kleine-König 60d644cae9 imx/mx3: rename clock.c and iomux.c to {clock,iomux}-imx31.c
These files are only used on imx31.  This makes the name consistent with
the imx35 files.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
2010-01-05 10:10:07 +01:00
Uwe Kleine-König f568dd7f58 imx/mach-mx3: use constants namespaced by the corresponding SOC (easy part)
This just leaves cpu.c, devices.c and mm.c to clean up.  As these files
are used on more than one SOC they need some more work.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Guennadi Liakhovetski <lg@denx.de>
Cc: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Magnus Lilja <lilja.magnus@gmail.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Harro Haan <hrhaan@yahoo.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Luotao Fu <l.fu@pengutronix.de>
Cc: Ilya Yanok <yanok@emcraft.com>
2010-01-05 10:10:07 +01:00
Uwe Kleine-König 3f35d1f5e4 imx/mach-mx2: use constants namespaced by the corresponding SOC (easy part)
This just leaves devices.c, generic.c and serial.c to clean up.  As
these files are used on more than one SOC they need some more work.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: Rabin Vincent <rabin@rab.in>
Cc: Javier Martin <javier.martin@vista-silicon.com>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Benard <eric@eukrea.com>
Cc: Ivo Clarysse <ivo.clarysse@gmail.com>
Cc: Vladimir Barinov <vbarinov@embeddedalley.com>
Cc: Daniel Schaeffer <daniel.schaeffer@timesys.com>
Cc: Simon POLETTE <spolette@adnlysd018.(none)>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Alan Carvalho de Assis <acassis@gmail.com>
Cc: Luotao Fu <l.fu@pengutronix.de>
2010-01-05 10:10:07 +01:00
Uwe Kleine-König b70564686a imx/clock-imx27: use a macro to define registers
This way the base address isn't hard coded in each register definition

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rabin Vincent <rabin@rab.in>
Cc: Javier Martin <javier.martin@vista-silicon.com>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
2010-01-05 10:10:07 +01:00
Uwe Kleine-König 318859fdff imx/clock-imx21: use a macro to define registers
This way the base address isn't hard coded in each register definition

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: Rabin Vincent <rabin@rab.in>
2010-01-05 10:10:06 +01:00
Uwe Kleine-König 5113f81520 imx/mx2: fold crm_regs.h into its only consumer
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: Rabin Vincent <rabin@rab.in>
2010-01-05 10:10:06 +01:00
Uwe Kleine-König f9ffaa9ca9 imx/mx3: depend on USB_ULPI for otg_ulpi_create
otg_ulpi_create is defined in drivers/usb/otg/ulpi.c which depends on
CONFIG_USB_ULPI.  So protect its usage by the same symbol.  Moreover
mxc_ulpi_access_ops needs CONFIG_MXC_ULPI.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
Cc: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 13:26:23 +01:00
Wolfgang Denk e94c4c3449 ARM: MX3: make CPU revision number detection work on all boards
Commit 52939c03 (ARM: MX3: fix CPU revision number detection) started
using the CPU's SREV register for revision number detection. This
makes it mandatory to have a valid SPBA0 mapping. Add this to the
global map_io code instead of adding multiple copies for each board.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>

Tested on Qong (EVB-Lite)
Tested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 12:28:58 +01:00
Baruch Siach e71fbaf766 mx25: pdk: add platform code for FEC support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:44 +01:00
Baruch Siach a759544ff9 mx25: add support for FEC on i.MX25
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:44 +01:00
Baruch Siach dda71f1612 mx25: s/NO_PAD_CTL/NO_PAD_CTRL/
NO_PAD_CTL is not defined anywhere.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:44 +01:00
Valentin Longchamp 4c21186bd8 mx31moboard: fix usbh device names
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:43 +01:00
Guennadi Liakhovetski 9d00278d48 mx3: add support for the mt9v022 camera sensor to pcm037 platform
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:43 +01:00
Alan Carvalho de Assis 2243b649aa mx27: mxt_td60: Remove not used UART pins
Signed-off-by: Alan Carvalho de Assis <acassis@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-01-04 11:47:43 +01:00
Linus Torvalds 71492fd1bd Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
  classmate-laptop: add support for Classmate PC ACPI devices
  hp-wmi: Fix two memleaks
  acer-wmi, msi-wmi: Remove needless DMI MODULE_ALIAS
  dell-wmi: do not keep driver loaded on unsupported boxes
  wmi: Free the allocated acpi objects through wmi_get_event_data
  drivers/platform/x86/acerhdf.c: check BIOS information whether it begins with string of table
  acerhdf: add new BIOS versions
  acerhdf: limit modalias matching to supported
  toshiba_acpi: convert to seq_file
  asus_acpi: convert to seq_file
  ACPI: do not select ACPI_DOCK from ATA_ACPI
  sony-laptop: enumerate rfkill devices using SN06
  sony-laptop: rfkill support for newer models
  ACPI: fix OSC regression that caused aer and pciehp not to load
  MAINTAINERS: add maintainer for msi-wmi driver
  fujitu-laptop: fix tests of acpi_evaluate_integer() return value
  arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c: avoid cross-CPU interrupts by using smp_call_function_any()
  ACPI: processor: remove _PDC object list from struct acpi_processor
  ACPI: processor: change acpi_processor_set_pdc() interface
  ACPI: processor: open code acpi_processor_cleanup_pdc
  ...
2009-12-24 13:00:02 -08:00
Linus Torvalds 756fe28507 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  VIDEO: cyberpro: pci_request_regions needs a persistent name
  ARM: dma-isa: request cascade channel after registering it
  ARM: footbridge: trim down old ISA rtc setup
  ARM: fix PAGE_KERNEL
  ARM: Fix wrong shared bit for CPU write buffer bug test
  ARM: 5857/1: ARM: dmabounce: fix build
  ARM: 5856/1: Fix bug of uart0 platfrom data for nuc900
  ARM: 5855/1: putc support for nuc900
  ARM: 5854/1: fix compiling error for NUC900
  ARM: 5849/1: ARMv7: fix Oprofile events count
  ARM: add missing include to nwflash.c
  ARM: Kill CONFIG_CPU_32
  ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread()
  ARM: 5853/1: ARM: Fix build break on ARM v6 and v7
2009-12-24 12:57:45 -08:00
Russell King e8b8f5ef90 ARM: dma-isa: request cascade channel after registering it
We can't request the cascade channel before it's been registered, so
move it afterwards.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-24 18:34:08 +00:00
Russell King 382b4480ff ARM: footbridge: trim down old ISA rtc setup
This fixes a "start_kernel(): bug: interrupts were enabled early".

rtc_cmos now takes care of initializing the ISA RTC and reading the
current time and date from it; there's no need to repeat that here,
thereby causing interrupts to be enabled too early.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-24 13:39:18 +00:00
Russell King 6dc995a3da ARM: fix PAGE_KERNEL
PAGE_KERNEL should not be executable; any area marked executable can
be prefetched into the instruction cache.  We don't want vmalloc areas
to be read in this way.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-24 10:16:21 +00:00
Len Brown fcb11235d3 Merge branch 'misc-2.6.33' into release 2009-12-24 01:19:00 -05:00
Len Brown da3df858c8 Merge branch 'pdc' into release 2009-12-24 01:17:21 -05:00
Paul Mundt f34548cb73 Merge branch 'sh/g3-prep' into sh/for-2.6.33 2009-12-24 15:16:02 +09:00
Markus Pietrek 76382b5bdb sh: Ensure all PG_dcache_dirty pages are written back.
With some of the cache rework an address aliasing optimization was added,
but this managed to fail on certain mappings resulting in pages with
PG_dcache_dirty set never writing back their dcache lines. This patch
reverts to the earlier behaviour of simply always writing back when the
dirty bit is set.

Signed-off-by: Markus Pietrek <Markus.Pietrek@emtrion.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-24 15:12:02 +09:00
Kuninori Morimoto 9503e891d2 sh: mach-ecovec24: setup.c detailed correction
o remove unused define
o add device name comment

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-24 14:59:51 +09:00
Linus Torvalds 2f99f5c8f0 Revert "x86, ucode-amd: Ensure ucode update on suspend/resume after CPU off/online cycle"
This reverts commit 9f15226e75.  It's just
wrong, and broke resume for Rafael even on a non-AMD CPU.

As Rafael says:
 "... it causes microcode_init_cpu() to be called during resume even for
  CPUs for which there's no microcode to apply.  That, in turn, results
  in executing request_firmware() (on Intel CPUs at least) which doesn't
  work at this stage of resume (we have device interrupts disabled, I/O
  devices are still suspended and so on).

  If I'm not mistaken, the "if (uci->valid)" logic means "if that CPU is
  known to us" , so before commit 9f15226e75 microcode_resume_cpu() was
  called for all CPUs already in the system during suspend, which was
  the right thing to do.  The commit changed it so that the CPUs without
  microcode to apply are now treated as "unknown", which is not quite
  right.

  The problem this commit attempted to solve has to be handled
  differently."

Bisected-and -requested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-23 15:04:53 -08:00
Russell King 52e8bfd81a ARM: Fix wrong shared bit for CPU write buffer bug test
It is unpredictable to have the same memory mapped using different
shared bit settings for ARMv6 and ARMv7 CPUs.  Fix this for the CPU
write buffer bug test.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-23 19:54:31 +00:00
Linus Torvalds dd508ae2db Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (36 commits)
  powerpc/gc/wii: Remove get_irq_desc()
  powerpc/gc/wii: hlwd-pic: convert irq_desc.lock to raw_spinlock
  powerpc/gamecube/wii: Fix off-by-one error in ugecon/usbgecko_udbg
  powerpc/mpic: Fix problem that affinity is not updated
  powerpc/mm: Fix stupid bug in subpge protection handling
  powerpc/iseries: use DECLARE_COMPLETION_ONSTACK for non-constant completion
  powerpc: Fix MSI support on U4 bridge PCIe slot
  powerpc: Handle VSX alignment faults correctly in little-endian mode
  powerpc/mm: Fix typo of cpumask_clear_cpu()
  powerpc/mm: Fix hash_utils_64.c compile errors with DEBUG enabled.
  powerpc: Convert BUG() to use unreachable()
  powerpc/pseries: Make declarations of cpu_hotplug_driver_lock() ANSI compatible.
  powerpc/pseries: Don't panic when H_PROD fails during cpu-online.
  powerpc/mm: Fix a WARN_ON() with CONFIG_DEBUG_PAGEALLOC and CONFIG_DEBUG_VM
  powerpc/defconfigs: Set HZ=100 on pseries and ppc64 defconfigs
  powerpc/defconfigs: Disable token ring in powerpc defconfigs
  powerpc/defconfigs: Reduce 64bit vmlinux by making acenic and cramfs modules
  powerpc/pseries: Select XICS and PCI_MSI PSERIES
  powerpc/85xx: Wrong variable returned on error
  powerpc/iseries: Convert to proc_fops
  ...
2009-12-22 14:18:13 -08:00
Andrew Morton 4a28395d72 arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c: avoid cross-CPU interrupts by using smp_call_function_any()
Presently acpi-cpufreq will perform the MSR read on the first CPU in the
mask.  That's inefficient if that CPU differs from the current CPU.
Because we have to perform a cross-CPU call, but we could have run the
rdmsr on the current CPU.

So switch to using the new smp_call_function_any(), which will perform the
call on the current CPU if that CPU is present in the mask (it is).

Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 15:03:57 -05:00
Mike Rapoport d9fd3ab89f ARM: 5857/1: ARM: dmabounce: fix build
Commit f74f7e57ae (ARM: use
flush_kernel_dcache_area() for dmabounce) has broken dmabounce build:

  CC      arch/arm/common/dmabounce.o
arch/arm/common/dmabounce.c: In function 'unmap_single':
arch/arm/common/dmabounce.c:315: error: implicit declaration of function '__cpuc_flush_kernel_dcache_area'
make[2]: *** [arch/arm/common/dmabounce.o] Error 1

Fix it.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-22 15:32:32 +00:00
wanzongshun db93dd1ad6 ARM: 5856/1: Fix bug of uart0 platfrom data for nuc900
Fix bug of uart0 platfrom data for nuc900

Signed-off-by: lijie <eltshanli@gmail.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-22 15:32:32 +00:00
wanzongshun 040f04598c ARM: 5855/1: putc support for nuc900
putc support for nuc900

Signed-off-by: lijie <eltshanli@gmail.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-22 15:32:32 +00:00
wanzongshun d76cdf2394 ARM: 5854/1: fix compiling error for NUC900
fix compiling error for NUC900

Signed-off-by: lijie <eltshanli@gmail.com>
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-22 15:32:31 +00:00
Jean PIHET 3321c2bcea ARM: 5849/1: ARMv7: fix Oprofile events count
On Oprofile ARMv7 the PMNC_D bit was set to lower the PMU IRQs
and so to decrease the risk of errata #628216 from appearing.
The effect of setting the PMNC_D bit is that the CCNT counter
is divided by 64, making the program counter events count
inaccurate.
The new OMAP3 r4 cores should have that errata fixed.

The PMNC_D bit should not be set, this patch fixes it.

Signed-off-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-22 15:32:31 +00:00
Alex Chiang 47817254b8 ACPI: processor: unify arch_acpi_processor_cleanup_pdc
The x86 and ia64 implementations of the function in $subject are
exactly the same.

Also, since the arch-specific implementations of setting _PDC have
been completely hollowed out, remove the empty shells.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 03:24:14 -05:00
Alex Chiang 6c5807d7bc ACPI: processor: finish unifying arch_acpi_processor_init_pdc()
The only thing arch-specific about calling _PDC is what bits get
set in the input obj_list buffer.

There's no need for several levels of indirection to twiddle those
bits. Additionally, since we're just messing around with a buffer,
we can simplify the interface; no need to pass around the entire
struct acpi_processor * just to get at the buffer.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 03:24:13 -05:00
Alex Chiang 08ea48a326 ACPI: processor: factor out common _PDC settings
Both x86 and ia64 initialize _PDC with mostly common bit settings.

Factor out the common settings and leave the arch-specific ones alone.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 03:24:12 -05:00
Alex Chiang 407cd87c54 ACPI: processor: unify arch_acpi_processor_init_pdc
The x86 and ia64 implementations of arch_acpi_processor_init_pdc()
are almost exactly the same. The only difference is in what bits
they set in obj_list buffer.

Combine the boilerplate memory management code, and leave the
arch-specific bit twiddling in separate implementations.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 03:24:11 -05:00
Alex Chiang 1d9cb470a7 ACPI: processor: introduce arch_has_acpi_pdc
arch dependent helper function that tells us if we should attempt to
evaluate _PDC on this machine or not.

The x86 implementation assumes that the CPUs in the machine must be
homogeneous, and that you cannot mix CPUs of different vendors.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-22 03:24:10 -05:00
Paul Mundt 73a38b839b sh: Only use bl bit toggling for sleeping idle.
We don't actually require this in the cpu_relax() polling case, so just
cuddle these around the sleeping version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-21 11:57:33 +09:00
Paul Mundt 3147093e1d sh: Restore bl bit toggling in idle loop.
This fixes up some crashes with IRQs racing the need_resched() test under
QEMU.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-21 11:57:29 +09:00
Albert Herranz 95cd34b42b powerpc/gc/wii: Remove get_irq_desc()
Fix the following build failures:

arch/powerpc/platforms/embedded6xx/flipper-pic.c: In function 'flipper_pic_map':
arch/powerpc/platforms/embedded6xx/flipper-pic.c:105: error: implicit declaration of function 'get_irq_desc'

arch/powerpc/platforms/embedded6xx/hlwd-pic.c: In function 'hlwd_pic_map':
arch/powerpc/platforms/embedded6xx/hlwd-pic.c:98: error: implicit declaration of function 'get_irq_desc'

These failures are caused by the changes introduced in commit
"powerpc: Remove get_irq_desc()". The reason these drivers were not
updated is that they weren't merged yet.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-21 11:12:14 +11:00
Albert Herranz 7ccec3e726 powerpc/gc/wii: hlwd-pic: convert irq_desc.lock to raw_spinlock
Fix the following build failures:

arch/powerpc/platforms/embedded6xx/hlwd-pic.c: In function 'hlwd_pic_irq_cascade':
arch/powerpc/platforms/embedded6xx/hlwd-pic.c:135: error: passing argument 1 of 'spin_lock' from incompatible pointer type
arch/powerpc/platforms/embedded6xx/hlwd-pic.c:137: error: passing argument 1 of 'spin_unlock' from incompatible pointer type
arch/powerpc/platforms/embedded6xx/hlwd-pic.c:145: error: passing argument 1 of 'spin_lock' from incompatible pointer type
arch/powerpc/platforms/embedded6xx/hlwd-pic.c:149: error: passing argument 1 of 'spin_unlock' from incompatible pointer type

These failures are caused by the changes introduced in commit
"genirq: Convert irq_desc.lock to raw_spinlock". The reason this driver
was not updated is that it wasn't merged yet.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-21 11:12:13 +11:00
Benjamin Herrenschmidt 8beac08ee9 Merge commit 'jwb/next' into merge 2009-12-21 09:30:45 +11:00
Benjamin Herrenschmidt 2593f939a5 Merge commit 'kumar/next' into merge 2009-12-21 09:30:42 +11:00
Linus Torvalds dd59f6c76b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
  alpha: Convert BUG() to use unreachable()
  alpha: Add minimal support for software performance events
  alpha: Wire up missing/new syscalls
2009-12-19 12:38:55 -08:00
Linus Torvalds eca9dfcd00 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 session: Make events_stats u64 to avoid overflow on 32-bit arches
  hw-breakpoints: Fix hardware breakpoints -> perf events dependency
  perf events: Dont report side-band events on each cpu for per-task-per-cpu events
  perf events, x86/stacktrace: Fix performance/softlockup by providing a special frame pointer-only stack walker
  perf events, x86/stacktrace: Make stack walking optional
  perf events: Remove unused perf_counter.h header file
  perf probe: Check new event name
  kprobe-tracer: Check new event/group name
  perf probe: Check whether debugfs path is correct
  perf probe: Fix libdwarf include path for Debian
2009-12-19 09:48:42 -08:00
Linus Torvalds 3981e15286 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system
  Makefile: Unexport LC_ALL instead of clearing it
  x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk
  x86: Reenable TSC sync check at boot, even with NONSTOP_TSC
  x86: Don't use POSIX character classes in gen-insn-attr-x86.awk
  Makefile: set LC_CTYPE, LC_COLLATE, LC_NUMERIC to C
  x86: Increase MAX_EARLY_RES; insufficient on 32-bit NUMA
  x86: Fix checking of SRAT when node 0 ram is not from 0
  x86, cpuid: Add "volatile" to asm in native_cpuid()
  x86, msr: msrs_alloc/free for CONFIG_SMP=n
  x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space
  x86: Add IA32_TSC_AUX MSR and use it
  x86, msr/cpuid: Register enough minors for the MSR and CPUID drivers
  initramfs: add missing decompressor error check
  bzip2: Add missing checks for malloc returning NULL
  bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure
2009-12-19 09:48:14 -08:00
Heiko Carstens 1d802e2477 [S390] Use strim instead of strstrip to avoid false warnings.
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:33 +01:00
Oleg Nesterov ca633fd006 [S390] ptrace: dont abuse PT_PTRACED
Nobody except ptrace itself should use task->ptrace or PT_PTRACED
directly, change arch/s390/kernel/traps.c to use the helper.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:32 +01:00
Martin Schwidefsky 622e99bf0d [S390] rename NT_PRXSTATUS to NT_S390_HIGHREGS
The elf notes number for the upper register halves is s390 specific.
Change the name of the elf notes to include S390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:32 +01:00
Roel Kluin b59cdcb339 [S390] s390: PTR_ERR return of wrong pointer in fallback_init_cip()
Return the PTR_ERR of the correct pointer.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:31 +01:00
Heiko Carstens 70ee9518cf [S390] wire up sys_recvmmsg
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-18 17:43:31 +01:00
Russell King 4da8b8208e ARM: Kill CONFIG_CPU_32
26-bit ARM support was removed a long time ago, and this symbol has
been defined to be 'y' ever since.  As it's never disabled anymore,
we can kill it without any side effects.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-18 16:07:53 +00:00
Russell King 797245f5da ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread()
This avoids races in the VFP code where the dead thread may have
state on another CPU.  By moving this code to exit_thread(), we
will be running as the thread, and therefore be running on the
current CPU.

This means that we can ensure that the only local state is accessed
in the thread notifiers.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-18 14:53:41 +00:00
Frederic Weisbecker 99e8c5a3b8 hw-breakpoints: Fix hardware breakpoints -> perf events dependency
The kbuild's select command doesn't propagate through the config
dependencies.

Hence the current rules of hardware breakpoint's config can't
ensure perf can never be disabled under us.

We have:

config X86
	selects HAVE_HW_BREAKPOINTS

config HAVE_HW_BREAKPOINTS
	select PERF_EVENTS

config PERF_EVENTS
	[...]

x86 will select the breakpoints but that won't propagate to perf
events. The user can still disable the latter, but it is
necessary for the breakpoints.

What we need is:

 - x86 selects HAVE_HW_BREAKPOINTS and PERF_EVENTS
 - HAVE_HW_BREAKPOINTS depends on PERF_EVENTS

so that we ensure PERF_EVENTS is enabled and frozen for x86.

This fixes the following kind of build errors:

 In file included from arch/x86/kernel/hw_breakpoint.c:31:
 include/linux/hw_breakpoint.h: In function 'hw_breakpoint_addr':
 include/linux/hw_breakpoint.h:39: error: 'struct perf_event' has no member named 'attr'

v2: Select also ANON_INODES from x86, required for perf

Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reported-by: Michal Marek <mmarek@suse.cz>
Reported-by: Andrew Randrianasulu <randrik_a@yahoo.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
LKML-Reference: <1261010034-7786-1-git-send-regression-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-18 13:11:51 +01:00
Anand Gadiyar 2395d66d09 ARM: 5853/1: ARM: Fix build break on ARM v6 and v7
Commit 2c9b9c849 added an argument to __cpuc_flush_dcache_page
and renamed it.

Update a caller of the old function to fix this build error:

  CC      arch/arm/mm/copypage-v6.o
arch/arm/mm/copypage-v6.c: In function 'v6_copy_user_highpage_nonaliasing':
arch/arm/mm/copypage-v6.c:51: error: implicit declaration of function '__cpuc_flush_dcache_page'
make[1]: *** [arch/arm/mm/copypage-v6.o] Error 1
make: *** [arch/arm/mm] Error 2

Reported-by: Jinsung Yang <jsgood.yang@samsung.com>

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-18 12:07:05 +00:00
David Daney acadbfb90a alpha: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
CC: linux-alpha@vger.kernel.org
Signed-off-by: Matt Turner <mattst88@gmail.com>
2009-12-18 01:14:52 -05:00
Michael Cree a582e6f01b alpha: Add minimal support for software performance events
In the kernel the patch enables configuration of the perf event
option, adds the perf_event_open syscall, and includes a minimal
architecture specific asm/perf_event.h header file.

Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2009-12-18 01:11:30 -05:00
Daniele Calore 21797c599c alpha: Wire up missing/new syscalls
This wire up the: fallocate, timerfd_create, timerfd_settime,
timerfd_gettime, signalfd4, eventfd2, epoll_create1, dup3, pipe2,
inotify_init1, preadv, pwritev and rt_tgsigqueueinfo syscalls for
the alpha port.

For umount2, alpha have an "old" and "new" version called: oldumount and
umount; so ignore umount2.

Rebased on top of 6e17e8b9fb by Matt
Turner.

Signed-off-by: Daniele Calore <orkaan@orkaan.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2009-12-18 01:11:13 -05:00
Suresh Siddha 18374d89e5 x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system
John Blackwood reported:
> on an older Dell PowerEdge 6650 system with 8 cpus (4 are hyper-threaded),
> and  32 bit (x86) kernel, once you change the irq smp_affinity of an irq
> to be less than all cpus in the system, you can never change really the
> irq smp_affinity back to be all cpus in the system (0xff) again,
> even though no error status is returned on the "/bin/echo ff >
> /proc/irq/[n]/smp_affinity" operation.
>
> This is due to that fact that BAD_APICID has the same value as
> all cpus (0xff) on 32bit kernels, and thus the value returned from
> set_desc_affinity() via the cpu_mask_to_apicid_and() function is treated
> as a failure in set_ioapic_affinity_irq_desc(), and no affinity changes
> are made.

set_desc_affinity() is already checking if the incoming cpu mask
intersects with the cpu online mask or not. So there is no need
for the apic op cpu_mask_to_apicid_and() to check again
and return BAD_APICID.

Remove the BAD_APICID return value from cpu_mask_to_apicid_and()
and also fix set_desc_affinity() to return -1 instead of using BAD_APICID
to represent error conditions (as cpu_mask_to_apicid_and() can return
logical or physical apicid values and BAD_APICID is really to represent
bad physical apic id).

Reported-by: John Blackwood <john.blackwood@ccur.com>
Root-caused-by: John Blackwood <john.blackwood@ccur.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <1261103386.2535.409.camel@sbs-t61>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-17 22:03:06 -08:00
Albert Herranz 698cd335a7 powerpc/gamecube/wii: Fix off-by-one error in ugecon/usbgecko_udbg
The retry logic in ug_putc() is broken.

If the TX fifo is not ready and the counter runs out it will have a
value of -1 and no transfer should be attempted. Also, a counter
with a value of 0 means that the TX fifo got ready in the last try
and the transfer should be attempted.

Reported-by: "Juha Leppanen" <juha_motorsportcom@luukku.com>
Signed-off-by: "Juha Leppanen" <juha_motorsportcom@luukku.com>
Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 15:13:57 +11:00
Yang Li 38e1313fc7 powerpc/mpic: Fix problem that affinity is not updated
Since commit 57b150cce8, desc->affinity
of an irq is changed after calling desc->chip->set_affinity.
Therefore we need to fix the irq_choose_cpu() not to depend on the
desc->affinity for new mask.

Signed-off-by: Jiajun Wu <b06378@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 15:13:57 +11:00
David Gibson a1128f8f0f powerpc/mm: Fix stupid bug in subpge protection handling
Commit d28513bc7f ("Fix bug in pagetable
cache cleanup with CONFIG_PPC_SUBPAGE_PROT"), itself a fix for
breakage caused by an earlier clean up patch of mine, contains a
stupid bug.  I changed the parameters of the subpage_protection()
function, but failed to update one of the callers.

This patch fixes it, and replaces a void * with a typed pointer so
that the compiler will warn on such an error in future.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:55:44 +11:00
Yong Zhang c3a6635939 powerpc/iseries: use DECLARE_COMPLETION_ONSTACK for non-constant completion
The _ONSTACK variant should be used for on-stack completion,
otherwise it will break lockdep.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:55:44 +11:00
Benjamin Herrenschmidt 7a96c6b22e powerpc: Fix MSI support on U4 bridge PCIe slot
On machines using the Apple U4 bridge (AKA IBM CPC945) PCIe interface such
as the latest generation G5 machines x16 slot or the x16 slot of the
PowerStation, MSIs are currently broken (and will oops when enabling).

This fixes the oops and implements proper support for those. Instead of
using the PCIe <-> HT bridge conversion, on such slots we need to use
a bunch of magic registers in the bridge as the MSI target, encoding
the interrupt number in the low bits of the address itself

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:55:43 +11:00
Neil Campbell bb7f20b1c6 powerpc: Handle VSX alignment faults correctly in little-endian mode
This patch fixes the handling of VSX alignment faults in little-endian
mode (the current code assumes the processor is in big-endian mode).

The patch also makes the handlers clear the top 8 bytes of the register
when handling an 8 byte VSX load.

This is based on 2.6.32.

Signed-off-by: Neil Campbell <neilc@linux.vnet.ibm.com>
Cc: <stable@kernel.org>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:55:43 +11:00
Yang Li f04b10cddb powerpc/mm: Fix typo of cpumask_clear_cpu()
The function name of cpumask_clear_cpu was not correct. Fortunately
nobody uses that code with hotplug yet :-)

Reported-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:27 +11:00
Sachin P. Sant 5c33991987 powerpc/mm: Fix hash_utils_64.c compile errors with DEBUG enabled.
This time without the funny characters.

Fix following build errors generated with DEBUG=1

cc1: warnings being treated as errors
arch/powerpc/mm/hash_utils_64.c: In function 'htab_dt_scan_page_sizes':
arch/powerpc/mm/hash_utils_64.c:343: error: format '%04x' expects type 'unsigned int', but argument 4 has type 'long unsigned int'
arch/powerpc/mm/hash_utils_64.c:343: error: format '%08x' expects type 'unsigned int', but argument 5 has type 'long unsigned int'
arch/powerpc/mm/hash_utils_64.c: In function 'htab_initialize':
arch/powerpc/mm/hash_utils_64.c:666: error: format '%x' expects type 'unsigned int', but argument 4 has type 'long unsigned int'
... SNIP ...

Signed-off-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:27 +11:00
David Daney 01ae45bcd4 powerpc: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:27 +11:00
Gautham R Shenoy 3d9b740b2d powerpc/pseries: Make declarations of cpu_hotplug_driver_lock() ANSI compatible.
And add the __acquires() and __releases() annotations, while at it.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:26 +11:00
Gautham R Shenoy e9edb232d3 powerpc/pseries: Don't panic when H_PROD fails during cpu-online.
If an online-attempt on a CPU which has been offlined using H_CEDE
with an appropriate cede latency hint fails, don't panic.

Instead print the error message and let the __cpu_up() code notify the
CPU Hotplug framework of the failure, which in turn can notify the
other subsystem through CPU_UP_CANCELED.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:26 +11:00
Benjamin Herrenschmidt 50891457f1 powerpc/mm: Fix a WARN_ON() with CONFIG_DEBUG_PAGEALLOC and CONFIG_DEBUG_VM
Set need to call __set_pte_at() and not set_pte_at() from __change_page_attr()
since the later will perform checks with CONFIG_DEBUG_VM that aren't suitable
to the way we override an existing PTE. (More specifically, it doesn't let
you write over a present PTE).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:26 +11:00
Anton Blanchard 030bdc3fd0 powerpc/defconfigs: Set HZ=100 on pseries and ppc64 defconfigs
Now we have high res timers there is less of a reason for a high HZ value.
Furthermore I think there a few reasons we should reduce HZ to 100:

- Timer interrupt overhead. While this overhead is small, there are
  applications that are very sensitive to jitter (eg some HPC apps).

- Issues with the timer wheel code. When coming out of NO_HZ idle we work our
  way through the timer code one tick at a time.  If we have been idle a long
  time, this adds up - I sometimes see milliseconds of time spent in that
  loop.

  Long term we should fix the timer wheel algorithm, but for now if we reduce
  HZ then we reduce the amount of work the timer code has to do when coming
  out of idle.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:26 +11:00
Anton Blanchard 55f2fa1473 powerpc/defconfigs: Disable token ring in powerpc defconfigs
Token what? Lets save some space in our powerpc kernels and remove token
ring support.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:25 +11:00
Anton Blanchard c2613c7f80 powerpc/defconfigs: Reduce 64bit vmlinux by making acenic and cramfs modules
Machines with acenic adapters are rare these days, so we may as well make it
a module. Cramfs is also very rarely used so we can make it a module.

Together this saves 143kB on a 64bit compile:

   text	   data	    bss	    dec	    hex	filename
8247176	1729404	1221988	11198568	 aae068	vmlinux~
8134997	1727588	1188836	11051421	 a8a19d	vmlinux

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:25 +11:00
Mel Gorman 8a55c4ba3e powerpc/pseries: Select XICS and PCI_MSI PSERIES
It's possible to set CONFIG_XICS without CONFIG_PCI_MSI. When that happens,
the kernel fails to build with

arch/powerpc/platforms/built-in.o: In function `.xics_startup':
xics.c:(.text+0x12f60): undefined reference to `.unmask_msi_irq' make: ***
[.tmp_vmlinux1] Error 1

Furthermore, as noted by Benjamin Herrenschmidt, "CONFIG_XICS should be
made invisible and selected by PSERIES."

This patch fixes PSERIES to select both options

Signed-off-by: Mel Gorman <mel[at]csn.ul.ie>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:25 +11:00
Roel Kluin 29827b02dc powerpc/85xx: Wrong variable returned on error
The wrong variable was returned in the case of an error.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:53:37 +11:00
Alexey Dobriyan 5c916a295f powerpc/iseries: Convert to proc_fops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:53:37 +11:00
Robert Jennings 14b8a76b9d powerpc: Make the CMM memory hotplug aware
The Collaborative Memory Manager (CMM) module allocates individual pages
over time that are not migratable.  On a long running system this can
severely impact the ability to find enough pages to support a hotplug
memory remove operation.

This patch adds a memory isolation notifier and a memory hotplug notifier.
The memory isolation notifier will return the number of pages found in
the range specified.  This is used to determine if all of the used pages
in a pageblock are owned by the balloon (or other entities in the notifier
chain).  The hotplug notifier will free pages in the range which is to be
removed.  The priority of this hotplug notifier is low so that it will be
called near last, this helps avoids removing loaned pages in operations
that fail due to other handlers.

CMM activity will be halted when hotplug remove operations are active and
resume activity after a delay period to allow the hypervisor time to
adjust.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Gerald Schaefer <geralds@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:53:36 +11:00
Linus Torvalds 55db493b65 Merge branch 'cpumask-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'cpumask-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  cpumask: rename tsk_cpumask to tsk_cpus_allowed
  cpumask: don't recommend set_cpus_allowed hack in Documentation/cpu-hotplug.txt
  cpumask: avoid dereferencing struct cpumask
  cpumask: convert drivers/idle/i7300_idle.c to cpumask_var_t
  cpumask: use modern cpumask style in drivers/scsi/fcoe/fcoe.c
  cpumask: avoid deprecated function in mm/slab.c
  cpumask: use cpu_online in kernel/perf_event.c
2009-12-17 17:00:20 -08:00
Linus Torvalds b5c96f8917 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:
  OMAP3: serial - fix bug introduced in
  mfd: twl: fix twl4030 rename for remaining driver, board files
  USB ehci: replace mach header with plat
  omap3: Allow EHCI to be built on OMAP3
2009-12-17 16:57:49 -08:00
Linus Torvalds dbfc985195 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
  MIPS: Lasat: Fix botched changes to sysctl code.
  RTC: rtc-cmos.c: Fix warning on MIPS
  MIPS: Cleanup random differences beween lmo and Linus' kernel.
  MIPS: No longer hardwire CONFIG_EMBEDDED to y
  MIPS: Fix and enhance built-in kernel command line
  MIPS: eXcite: Remove platform.
  MIPS: Loongson: Cleanups of serial port support
  MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
  MIPS: Excite: move iodev_remove to .devexit.text
  MIPS: Lasat: Convert to proc_fops / seq_file
  MIPS: Cleanup signal code initialization
  MIPS: Modularize COP2 handling
  MIPS: Move EARLY_PRINTK to Kconfig.debug
  MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
  MIPS: Yeeloong 2F: Add LID open event as the wakeup event
  MIPS: Yeeloong 2F: Add basic EC operations
  MIPS: Move several variables from .bss to .init.data
  MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
  MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
  MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
  ...
2009-12-17 16:38:06 -08:00
Linus Torvalds bf931a01a2 Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
  spi: spi_txx9.c: use resource_size()
  spi: spi_sh_sci.c: use resource_size()
  spi: spi_mpc8xxx.c: use resource_size()
  spi: spi_bfin5xx.c: use resource_size()
  spi: atmel_spi.c: use resource_size()
  spi: Add s3c64xx SPI Controller driver
  atmel_spi: fix dma addr calculation for len > BUFFER_SIZE
  spi_s3c24xx: add FIQ pseudo-DMA support
  spi: controller driver for Designware SPI core
  spidev: add proper section markers
  spidev: use DECLARE_BITMAP instead of declaring the array
2009-12-17 15:59:05 -08:00
Linus Torvalds a695bc6836 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  PCMCIA: fix pxa2xx_lubbock modular build error
  [ARM] Update mach-types
  [ARM] pxa: fix no reference of cpu_is_pxa25x() in devices.c
  [ARM] pxa/cm-x300: add PWM backlight support
  revert "[ARM] pxa/cm-x300: add PWM backlight support"
  ARM: use flush_kernel_dcache_area() for dmabounce
  ARM: add size argument to __cpuc_flush_dcache_page
  ARM: 5848/1: kill flush_ioremap_region()
  ARM: cache-l2x0: make better use of background cache handling
  ARM: cache-l2x0: avoid taking spinlock for every iteration
  [ARM] Kirkwood: Add LaCie Network Space v2 support
  ARM: dove: fix the mm mmu flags of the pj4 procinfo
2009-12-17 15:53:41 -08:00
akpm@linux-foundation.org 8c63450718 x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk
It says

Warning: objdump version  is older than 2.19
Warning: Skipping posttest.

because it used the wrong field from `objdump -v':

akpm:/usr/src/25> /opt/crosstool/gcc-4.0.2-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-objdump -v
GNU objdump 2.16.1
Copyright 2005 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <200912172326.nBHNQaQl024796@imap1.linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
2009-12-17 15:34:29 -08:00
Russell King 6665398afa Merge branch 'cache' (early part) 2009-12-17 23:22:23 +00:00
Pallipadi, Venkatesh 6c56ccecf0 x86: Reenable TSC sync check at boot, even with NONSTOP_TSC
Commit 83ce4009 did the following change
If the TSC is constant and non-stop, also set it reliable.

But, there seems to be few systems that will end up with TSC warp across
sockets, depending on how the cpus come out of reset. Skipping TSC sync
test on such systems may result in time inconsistency later.

So, reenable TSC sync test even on constant and non-stop TSC systems.
Set, sched_clock_stable to 1 by default and reset it in
mark_tsc_unstable, if TSC sync fails.

This change still gives perf benefit mentioned in 83ce4009 for systems
where TSC is reliable.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <20091217202702.GA18015@linux-os.sc.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-17 14:44:35 -08:00
Linus Torvalds b8a7f3cd7e Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  kill I_LOCK
  fold do_sync_file_range into sys_sync_file_range
  fix up O_SYNC comments
  VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size
  fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_all
  vfs: remove extraneous NULL d_inode check from do_filp_open
  fs: no games with DCACHE_UNHASHED
  fs: anon_inodes implement dname
  dio: fix use-after-free
2009-12-17 08:31:01 -08:00
Linus Torvalds a377d181e6 Merge branch 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score
* 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score:
  score: include asm-generic/param.h in asm/delay.h.
  score: fixed pfn_valid define.
  score: add flush_dcahce_page and PG_dcache_dirty define
2009-12-17 08:08:57 -08:00