Commit graph

46502 commits

Author SHA1 Message Date
Linus Torvalds
27a3353a45 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (32 commits)
  Move N014, N051 and CR620 dmi information to load scm dmi table
  drivers/platform/x86/eeepc-wmi.c: fix build warning
  X86 platfrom wmi: Add debug facility to dump WMI data in a readable way
  X86 platform wmi: Also log GUID string when an event happens and debug is set
  X86 platform wmi: Introduce debug param to log all WMI events
  Clean up all objects used by scm model when driver initial fail or exit
  msi-laptop: fix up some coding style issues found by checkpatch
  msi-laptop: Add i8042 filter to sync sw state with BIOS when function key pressed
  msi-laptop: Set rfkill init state when msi-laptop intiial
  msi-laptop: Add MSI CR620 notebook dmi information to scm models table
  msi-laptop: Add N014 N051 dmi information to scm models table
  drivers/platform/x86: Use kmemdup
  drivers/platform/x86: Use kzalloc
  drivers/platform/x86: Clarify the MRST IPC driver description slightly
  eeepc-wmi: depends on BACKLIGHT_CLASS_DEVICE
  IPC driver for Intel Mobile Internet Device (MID) platforms
  classmate-laptop: Add RFKILL support.
  thinkpad-acpi: document backlight level writeback at driver init
  thinkpad-acpi: clean up ACPI handles handling
  thinkpad-acpi: don't depend on led_path for led firmware type (v2)
  ...
2010-05-21 17:13:24 -07:00
Linus Torvalds
6f68fbaafb Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  DMAENGINE: extend the control command to include an arg
  async_tx: trim dma_async_tx_descriptor in 'no channel switch' case
  DMAENGINE: DMA40 fix for allocation of logical channel 0
  DMAENGINE: DMA40 support paused channel status
  dmaengine: mpc512x: Use resource_size
  DMA ENGINE: Do not reset 'private' of channel
  ioat: Remove duplicated devm_kzalloc() calls for ioatdma_device
  ioat3: disable cacheline-unaligned transfers for raid operations
  ioat2,3: convert to producer/consumer locking
  ioat: convert to circ_buf
  DMAENGINE: Support for ST-Ericssons DMA40 block v3
  async_tx: use of kzalloc/kfree requires the include of slab.h
  dmaengine: provide helper for setting txstate
  DMAENGINE: generic channel status v2
  DMAENGINE: generic slave control v2
  dma: timb-dma: Update comment and fix compiler warning
  dma: Add timb-dma
  DMAENGINE: COH 901 318 fix bytesleft
  DMAENGINE: COH 901 318 rename confusing vars
2010-05-21 17:05:46 -07:00
Linus Torvalds
6969a43473 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (25 commits)
  MIPS: Use GCC __builtin_prefetch() to implement prefetch().
  MIPS: Octeon: Serial port fixes for OCTEON simulator.
  MIPS: Octeon: Get rid of early serial.
  MIPS: AR7: prevent race between clock initialization and devices registration
  MIPS: AR7: use ar7_has_high_vlynq() to determine watchdog base address
  MIPS: BCM63xx: Avoid namespace clash on GPIO_DIR_{IN,OUT}
  MIPS: MTX-1: Update defconfig
  MIPS: BCM47xx: Update defconfig
  MIPS: RB532: Update defconfig
  MIPS: AR7: Update defconfig
  RTC: rtc-cmos: Fix binary mode support
  MIPS: Oprofile: Loongson: Cleanup the comments
  MIPS: Oprofile: Loongson: Cleanup of the macros
  MIPS: Oprofile: Loongson: Remove unused variable from loongson2_cpu_setup()
  MIPS: Oprofile: Loongson: Remove useless parentheses
  MIPS: Oprofile: Loongson: Unify macro for setting events
  MIPS: nofpu and nodsp only affect CPU0
  MIPS: Clean up tables for bootmem allocation
  MIPS: Coding style cleanups of access of FCSR rounding mode bits
  MIPS: Loongson 2F: Add gpio/gpioilb support
  ...
2010-05-21 15:23:54 -07:00
Linus Torvalds
1f7f314bf2 Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: (23 commits)
  OMAP: DSS2: Fix omap_dss_probe() error path
  OMAP: DSS2: omap_dss_probe() conditional compilation cleanup
  board-omap3-beagle: add DSS2 support
  OMAP2: DSS: Add missing line for update bg color
  OMAP3630: DSS2: Updating MAX divider value
  OMAP: RX51: Update board defconfig
  OMAP: DSS2: Add ACX565AKM Panel Driver
  OMAP: RX51: Add Touch Controller in SPI board info
  OMAP: RX51: Add LCD Panel support
  OMAP: DSS2: TPO-TD03MTEA1: fix Kconfig dependency
  OMAP: LCD LS037V7DW01: Add Backlight driver support
  OMAP: DSS2: Taal: Fix DSI bus locking problem
  OMAP: DSS2: Taal: add mutex to protect panel data
  OMAP: DSS2: Make partial update width even
  OMAP: DSS2: Fix device disable when driver is not loaded
  OMAP: DSS2: VENC: don't call platform_enable/disable() twice
  OMAP: DSS2: check lock_fb_info() return value
  OMAP: DSS2: fix lock_fb_info() and omapfb_lock() locking order
  OMAP: DSS2: Use vdds_sdi regulator supply in SDI
  OMAP: DSS2: Remove redundant enable/disable calls from SDI
  ...
2010-05-21 15:20:57 -07:00
Linus Torvalds
2a8ba8f032 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits)
  random: simplify fips mode
  crypto: authenc - Fix cryptlen calculation
  crypto: talitos - add support for sha224
  crypto: talitos - add hash algorithms
  crypto: talitos - second prepare step for adding ahash algorithms
  crypto: talitos - prepare for adding ahash algorithms
  crypto: n2 - Add Niagara2 crypto driver
  crypto: skcipher - Add ablkcipher_walk interfaces
  crypto: testmgr - Add testing for async hashing and update/final
  crypto: tcrypt - Add speed tests for async hashing
  crypto: scatterwalk - Fix scatterwalk_done() test
  crypto: hifn_795x - Rename ablkcipher_walk to hifn_cipher_walk
  padata: Use get_online_cpus/put_online_cpus in padata_free
  padata: Add some code comments
  padata: Flush the padata queues actively
  padata: Use a timer to handle remaining objects in the reorder queues
  crypto: shash - Remove usage of CRYPTO_MINALIGN
  crypto: mv_cesa - Use resource_size
  crypto: omap - OMAP macros corrected
  padata: Use get_online_cpus/put_online_cpus
  ...

Fix up conflicts in arch/arm/mach-omap2/devices.c
2010-05-21 14:46:51 -07:00
Linus Torvalds
da7806f9b0 Merge branch 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm
* 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
  drivers: mmc: msm_sdcc: Add EMBEDDED_SDIO support
  mmc: msm_sdcc: Fix issue where clocks could be disabled mid transaction
  mmc: msm_sdcc: Fix the dma exec function to use the proper delays
  mmc: msm_sdcc: Don't set host->curr.mrq until after we're sure the busclk timer won't fire
  mmc: msm_sdcc: Enable busclk idle timer for power savings
  mmc: msm_sdcc: Don't disable interrupts while suspending
  mmc: msm_sdcc: Fix issue where we might not end a sucessfull request
  mmc: msm_sdcc: Featurize busclock power save and disable it by default
  mmc: msm_sdcc: Fix bug where busclk expiry timer was not properly disabled
  mmc: msm_sdcc: Reduce command timeouts and improve reliability.
  mmc: msm_sdcc: Schedule clock disable after probe
  mmc: msm_sdcc: Wrap readl/writel calls with appropriate clk delays
  mmc: msm_sdcc: Driver clocking/irq improvements
  msm: Add 'execute' datamover callback
  mmc: msm_sdcc: Snoop SDIO_CCCR_ABORT register
  mmc: msm_sdcc: Clean up clock management and add a 10us delay after enabling clocks
2010-05-21 14:38:35 -07:00
David Daney
0453fb3c52 MIPS: Use GCC __builtin_prefetch() to implement prefetch().
GCC's __builtin_prefetch() was introduced a long time ago, all
supported GCC versions have it.  Lets do what the big boys up in
linux/prefetch.h do, except we use '1' as the third parameter to
provoke 'PREF 0,...'  and 'PREF 1,...' instead of other prefetch
hints.

This allows for better code generation.  In theory the existing
embedded asm could be optimized, but the compiler has these builtins,
so there is really no point.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1235/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:23 +01:00
David Daney
606c958e28 MIPS: Octeon: Serial port fixes for OCTEON simulator.
For the simulator, fake a slow clock to get fast output.

In prom_putchar we have to mask the value so the simulator doesn't
ASSERT when printing non-ASCII characters.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1255/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:23 +01:00
David Daney
1dd5216e80 MIPS: Octeon: Get rid of early serial.
Get rid of early_serial_setup, we use CONFIG_EARLY_PRINTK instead.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1254/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:22 +01:00
Florian Fainelli
142a2ceea7 MIPS: AR7: prevent race between clock initialization and devices registration
ar7_regiser_devices needs ar7_clocks_init to have been called first,
however clock.o is currently linked later due to its order in the Makefile,
therefore ar7_clocks_init always gets called later than ar7_register_devices
because both have the same initcall level. Fix this by moving
ar7_register_devices to the right initcall level.

Reported-by: Michael J. Evans <mjevans1983@gmail.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1212/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:22 +01:00
Florian Fainelli
9c1b013a39 MIPS: AR7: use ar7_has_high_vlynq() to determine watchdog base address
Instead of doing yet another switch/case on the chip_id, use existing
inline function to set the watchdog base address.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1211/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:22 +01:00
Florian Fainelli
3e1bf29f73 MIPS: BCM63xx: Avoid namespace clash on GPIO_DIR_{IN,OUT}
This is too generic a name, so prefix it with BCM63XX_ to avoid potential
namespace clashes when including <asm/gpio.h>.

Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
To:     linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1171/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:22 +01:00
Florian Fainelli
32130ec2da MIPS: MTX-1: Update defconfig
Updates the 4G Systems MTX-1 defconfig, and remove systems unavailable
on this platform.  Changes include:

- built-in MTD char/block support
- GPIO sysfs support
- MTX-1 watchdog driver
- I2C over GPIO driver as a module
- SquashFS support

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1168/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:21 +01:00
Florian Fainelli
480f3b2dd3 MIPS: BCM47xx: Update defconfig
Update Broadcom BCM47xx defconfig with:

- tiny RCU
- BCM47xx watchdog driver
- b43/b43legacy wireless as modules
- SSB Gigabit Ethernet driver
- disabled IRDA

6igned-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1167/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:21 +01:00
Florian Fainelli
75d56c6e70 MIPS: RB532: Update defconfig
This updates the Mikrotik RB532 defconfig with:

- tiny RCU
- RB532 input buttons driver
- RB532 LED driver
- RC32434 watchdog driver
- GPIO sysfs support
- Wireless support
- SquashFS support
- more LED triggers

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1166/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:20 +01:00
Florian Fainelli
a39ed2c988 MIPS: AR7: Update defconfig
Update Texas Instruments AR7 defconfig with:

- tiny RCU
- LEDs GPIO
- disable SSB
- enable zboot support
- enable GPIO sysfs support

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:20 +01:00
Wu Zhangjin
893556e602 MIPS: Oprofile: Loongson: Cleanup the comments
Removes some out-of-date comments and empty lines.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1204/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:19 +01:00
Wu Zhangjin
852151bdb9 MIPS: Oprofile: Loongson: Cleanup of the macros
The _EXL, _KERNEL etc. bits are in the performance control register so
use _PERFCTRL prefix instead of _PERFCNT.  While at it make the macro
more readable, use _ENABLE instead of _INT_EN suffix to describe the
interrupt enable bit.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1203/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:19 +01:00
Wu Zhangjin
6d8c2873e0 MIPS: Oprofile: Loongson: Remove unused variable from loongson2_cpu_setup()
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1202/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:19 +01:00
Wu Zhangjin
c838abc511 MIPS: Oprofile: Loongson: Remove useless parentheses
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1201/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:18 +01:00
Wu Zhangjin
86e5a52021 MIPS: Oprofile: Loongson: Unify macro for setting events
Unified macro for counter0 and counter1 to set the event in the control
register.  This will be needed by Perf.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1200/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:18 +01:00
Kevin Cernekee
0103d23f44 MIPS: nofpu and nodsp only affect CPU0
The "nofpu" and "nodsp" kernel command line options currently do not
affect CPUs that are brought online later in the boot process or
hotplugged at runtime.  It is desirable to apply the nofpu/nodsp options
to all CPUs in the system, so that surprising results are not seen when
a process migrates from one CPU to another.

[Ralf: Moved definitions of mips_fpu_disabled, fpu_disable,
mips_dsp_disabled and dsp_disable from setup.c to cpu-probe.c to allow
making mips_fpu_disabled and mips_dsp_disabled static.]

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1169/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:17 +01:00
David VomLehn
4f1e099582 MIPS: Clean up tables for bootmem allocation
Modifications to the boot memory allocation structures to make them easier
to read and maintain. Note that this will not pass checkpatch because
it wants a structure element initializer to be enclosed in a
do {...} while(...), which is obvious nonsensical.

Signed-off-by: David VomLehn <dvomlehn@cisco.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1207/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:17 +01:00
Shane McDonald
3f13553044 MIPS: Coding style cleanups of access of FCSR rounding mode bits
Replaces references to the magic number 0x3 with constants and macros
indicating the real purpose of those bits.  They are the rounding mode
bits of the FCSR register.

Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
To: anemo@mba.ocn.ne.jp
To: kevink@paralogos.com
To: linux-mips@linux-mips.org
To: sshtylyov@mvista.com
Patchwork: http://patchwork.linux-mips.org/patch/1206/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:17 +01:00
Arnaud Patard
c197da9163 MIPS: Loongson 2F: Add gpio/gpioilb support
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1163/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:16 +01:00
Manuel Lauss
96d660c482 MIPS: Alchemy: add sysdev for DBDMA PM.
Add a sysdev for DBDMA PM.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1119/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:15 +01:00
Manuel Lauss
0f0d85bcc3 MIPS: Alchemy: add sysdev for IRQ PM.
Use a sysdev to implement PM methods for the Au1000 interrupt controllers.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1114/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:15 +01:00
Manuel Lauss
7b5fcd694d MIPS: Alchemy: Fix up residual devboard poweroff/reboot code.
Clean out stray unused board_reset() calls in pb1x boards, the PB1000 is
different from the rest and gets private methods.

(Cleanup after 32fd6901a6)

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1085/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:15 +01:00
Wu Zhangjin
b8853aa3d9 MIPS: Loongson: update cpu-feature-overrides.h
Loongson doesn't support MIPSR2, therefore, MIPSR2 vectored interrupts
(cpu_has_vint) and MIPSR2 external interrupt controller mode
(cpu_has_veic) are 0.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1112/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:14 +01:00
Julia Lawall
ed1bbdefc3 MIPS: Use set_cpus_allowed_ptr
From: Julia Lawall <julia@diku.dk>

Use set_cpus_allowed_ptr rather than set_cpus_allowed.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E1,E2;
@@

- set_cpus_allowed(E1, cpumask_of_cpu(E2))
+ set_cpus_allowed_ptr(E1, cpumask_of(E2))

@@
expression E;
identifier I;
@@

- set_cpus_allowed(E, I)
+ set_cpus_allowed_ptr(E, &I)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
To: peterz@infradead.org
To: mingo@elte.hu
To: tglx@linutronix.de
To: oleg@redhat.com
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
To: kernel-janitors@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1087/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-05-21 21:31:14 +01:00
Linus Torvalds
79c4581262 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (92 commits)
  powerpc: Remove unused 'protect4gb' boot parameter
  powerpc: Build-in e1000e for pseries & ppc64_defconfig
  powerpc/pseries: Make request_ras_irqs() available to other pseries code
  powerpc/numa: Use ibm,architecture-vec-5 to detect form 1 affinity
  powerpc/numa: Set a smaller value for RECLAIM_DISTANCE to enable zone reclaim
  powerpc: Use smt_snooze_delay=-1 to always busy loop
  powerpc: Remove check of ibm,smt-snooze-delay OF property
  powerpc/kdump: Fix race in kdump shutdown
  powerpc/kexec: Fix race in kexec shutdown
  powerpc/kexec: Speedup kexec hash PTE tear down
  powerpc/pseries: Add hcall to read 4 ptes at a time in real mode
  powerpc: Use more accurate limit for first segment memory allocations
  powerpc/kdump: Use chip->shutdown to disable IRQs
  powerpc/kdump: CPUs assume the context of the oopsing CPU
  powerpc/crashdump: Do not fail on NULL pointer dereferencing
  powerpc/eeh: Fix oops when probing in early boot
  powerpc/pci: Check devices status property when scanning OF tree
  powerpc/vio: Switch VIO Bus PM to use generic helpers
  powerpc: Avoid bad relocations in iSeries code
  powerpc: Use common cpu_die (fixes SMP+SUSPEND build)
  ...
2010-05-21 11:17:05 -07:00
Linus Torvalds
59534f7298 Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (207 commits)
  drm/radeon/kms/pm/r600: select the mid clock mode for single head low profile
  drm/radeon: fix power supply kconfig interaction.
  drm/radeon/kms: record object that have been list reserved
  drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU.
  drm/radeon/kms: don't default display priority to high on rs4xx
  drm/edid: fix typo in 1600x1200@75 mode
  drm/nouveau: fix i2c-related init table handlers
  drm/nouveau: support init table i2c device identifier 0x81
  drm/nouveau: ensure we've parsed i2c table entry for INIT_*I2C* handlers
  drm/nouveau: display error message for any failed init table opcode
  drm/nouveau: fix init table handlers to return proper error codes
  drm/nv50: support fractional feedback divider on newer chips
  drm/nv50: fix monitor detection on certain chipsets
  drm/nv50: store full dcb i2c entry from vbios
  drm/nv50: fix suspend/resume with DP outputs
  drm/nv50: output calculated crtc pll when debugging on
  drm/nouveau: dump pll limits entries when debugging is on
  drm/nouveau: bios parser fixes for eDP boards
  drm/nouveau: fix a nouveau_bo dereference after it's been destroyed
  drm/nv40: remove some completed ctxprog TODOs
  ...
2010-05-21 11:14:52 -07:00
Linus Torvalds
ac3ee84c60 Merge branch 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  echi-dbgp: Add kernel debugger support for the usb debug port
  earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb
  kgdboc: Add ekgdboc for early use of the kernel debugger
  x86,early dr regs,kgdb: Allow kernel debugger early dr register access
  x86,kgdb: Implement early hardware breakpoint debugging
  x86, kgdb, init: Add early and late debug states
  x86, kgdb: early trap init for early debug
2010-05-21 11:10:41 -07:00
Linus Torvalds
90b9a32d8f Merge branch 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'kdb-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: (25 commits)
  kdb,debug_core: Allow the debug core to receive a panic notification
  MAINTAINERS: update kgdb, kdb, and debug_core info
  debug_core,kdb: Allow the debug core to process a recursive debug entry
  printk,kdb: capture printk() when in kdb shell
  kgdboc,kdb: Allow kdb to work on a non open console port
  kgdb: Add the ability to schedule a breakpoint via a tasklet
  mips,kgdb: kdb low level trap catch and stack trace
  powerpc,kgdb: Introduce low level trap catching
  x86,kgdb: Add low level debug hook
  kgdb: remove post_primary_code references
  kgdb,docs: Update the kgdb docs to include kdb
  kgdboc,keyboard: Keyboard driver for kdb with kgdb
  kgdb: gdb "monitor" -> kdb passthrough
  sparc,sunzilog: Add console polling support for sunzilog serial driver
  sh,sh-sci: Use NO_POLL_CHAR in the SCIF polled console code
  kgdb,8250,pl011: Return immediately from console poll
  kgdb: core changes to support kdb
  kdb: core for kgdb back end (2 of 2)
  kdb: core for kgdb back end (1 of 2)
  kgdb,blackfin: Add in kgdb_arch_set_pc for blackfin
  ...
2010-05-21 11:08:05 -07:00
Linus Torvalds
a6f039869f Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (113 commits)
  omap4: Add support for i2c init
  omap: Fix i2c platform init code for omap4
  OMAP2 clock: fix recursive spinlock attempt when CONFIG_CPU_FREQ=y
  OMAP powerdomain, hwmod, omap_device: add some credits
  OMAP4 powerdomain: Support LOWPOWERSTATECHANGE for powerdomains
  OMAP3 clock: add support for setting the divider for sys_clkout2 using clk_set_rate
  OMAP4 powerdomain: Fix pwrsts flags for ALWAYS ON domains
  OMAP: timers: Fix clock source names for OMAP4
  OMAP4 clock: Support clk_set_parent
  OMAP4: PRCM: Add offset defines for all CM registers
  OMAP4: PRCM: Add offset defines for all PRM registers
  OMAP4: PRCM: Remove duplicate definition of base addresses
  OMAP4: PRM: Remove MPU internal code name and apply PRCM naming convention
  OMAP4: CM: Remove non-functional registers in ES1.0
  OMAP: hwmod: Replace WARN by pr_warning for clockdomain check
  OMAP: hwmod: Rename hwmod name for the MPU
  OMAP: hwmod: Do not exit the iteration if one clock init failed
  OMAP: hwmod: Replace WARN by pr_warning if clock lookup failed
  OMAP: hwmod: Remove IS_ERR check with omap_clk_get_by_name return value
  OMAP: hwmod: Fix wrong pointer iteration in oh->slaves
  ...
2010-05-21 10:50:00 -07:00
Chris Wright
2c3c8bea60 sysfs: add struct file* to bin_attr callbacks
This allows bin_attr->read,write,mmap callbacks to check file specific data
(such as inode owner) as part of any privilege validation.

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21 09:37:31 -07:00
Linus Torvalds
05ec7dd8dd Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (154 commits)
  mtd: cfi_cmdset_0002: use AMD standard command-set with Winbond flash chips
  mtd: cfi_cmdset_0002: Fix MODULE_ALIAS and linkage for new 0701 commandset ID
  mtd: mxc_nand: Remove duplicate NAND_CMD_RESET case value
  mtd: update gfp/slab.h includes
  jffs2: Stop triggering block erases from jffs2_write_super()
  jffs2: Rename jffs2_erase_pending_trigger() to jffs2_dirty_trigger()
  jffs2: Use jffs2_garbage_collect_trigger() to trigger pending erases
  jffs2: Require jffs2_garbage_collect_trigger() to be called with lock held
  jffs2: Wake GC thread when there are blocks to be erased
  jffs2: Erase pending blocks in GC pass, avoid invalid -EIO return
  jffs2: Add 'work_done' return value from jffs2_erase_pending_blocks()
  mtd: mtdchar: Do not corrupt backing device of device node inode
  mtd/maps/pcmciamtd: Fix printk format for ssize_t in debug messages
  drivers/mtd: Use kmemdup
  mtd: cfi_cmdset_0002: Fix argument order in bootloc warning
  mtd: nand: add Toshiba TC58NVG0 device ID
  pcmciamtd: add another ID
  pcmciamtd: coding style cleanups
  pcmciamtd: fixing obvious errors
  mtd: chips: add SST39WF160x NOR-flashes
  ...

Trivial conflicts due to dev_node removal in drivers/mtd/maps/pcmciamtd.c
2010-05-21 07:25:43 -07:00
FUJITA Tomonori
99ec28f183 powerpc: Remove unused 'protect4gb' boot parameter
'protect4gb' boot parameter was introduced to avoid allocating dma
space acrossing 4GB boundary in 2007 (the commit
569975591c).

In 2008, the IOMMU was fixed to use the boundary_mask parameter per
device properly. So 'protect4gb' workaround was removed (the
383af9525b). But somehow I messed the
'protect4gb' boot parameter that was used to enable the
workaround.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:13 +10:00
Michael Neuling
40a5a4435f powerpc: Build-in e1000e for pseries & ppc64_defconfig
The e1000e device is becoming more common these days, so let's just
build it in for pseries & ppc64_defconfig.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:12 +10:00
Mark Nelson
32c96f7765 powerpc/pseries: Make request_ras_irqs() available to other pseries code
At the moment only the RAS code uses event-sources interrupts (for EPOW
events and internal errors) so request_ras_irqs() (which actually requests
the event-sources interrupts) is found in ras.c and is static.

We want to be able to use event-sources interrupts in other pseries code,
so let's rename request_ras_irqs() to request_event_sources_irqs() and
move it to event_sources.c.

This will be used in an upcoming patch that adds support for IO Event
interrupts that come through as event sources.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:12 +10:00
Anton Blanchard
bc8449cc57 powerpc/numa: Use ibm,architecture-vec-5 to detect form 1 affinity
I've been told that the architected way to determine we are in form 1
affinity mode is by reading the ibm,architecture-vec-5 property which
mirrors the layout of the fifth vector of the ibm,client-architecture
structure.

Eventually we may want to parse the ibm,architecture-vec-5 and create
FW_FEATURE_* bits.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:12 +10:00
Anton Blanchard
56608209d3 powerpc/numa: Set a smaller value for RECLAIM_DISTANCE to enable zone reclaim
I noticed /proc/sys/vm/zone_reclaim_mode was 0 on a ppc64 NUMA box. It gets
enabled via this:

        /*
         * If another node is sufficiently far away then it is better
         * to reclaim pages in a zone before going off node.
         */
        if (distance > RECLAIM_DISTANCE)
                zone_reclaim_mode = 1;

Since we use the default value of 20 for REMOTE_DISTANCE and 20 for
RECLAIM_DISTANCE it never kicks in.

The local to remote bandwidth ratios can be quite large on System p
machines so it makes sense for us to reclaim clean pagecache locally before
going off node.

The patch below sets a smaller value for RECLAIM_DISTANCE and thus enables
zone reclaim.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:12 +10:00
Anton Blanchard
b878dc0059 powerpc: Use smt_snooze_delay=-1 to always busy loop
Right now if we want to busy loop and not give up any time to the hypervisor
we put a very large value into smt_snooze_delay. This is sometimes useful
when running a single partition and you want to avoid any latencies due
to the hypervisor or CPU power state transitions. While this works, it's a bit
ugly - how big a number is enough now we have NO_HZ and can be idle for a very
long time.

The patch below makes smt_snooze_delay signed, and a negative value means loop
forever:

echo -1 > /sys/devices/system/cpu/cpu0/smt_snooze_delay

This change shouldn't affect the existing userspace tools (eg ppc64_cpu), but
I'm cc-ing Nathan just to be sure.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:12 +10:00
Anton Blanchard
dd04c63c96 powerpc: Remove check of ibm,smt-snooze-delay OF property
I'm not sure why we have code for parsing an ibm,smt-snooze-delay OF
property. Since we have a smt-snooze-delay= boot option and we can
also set it at runtime via sysfs, it should be safe to get rid of
this code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:11 +10:00
Michael Neuling
60adec6226 powerpc/kdump: Fix race in kdump shutdown
When we are crashing, the crashing/primary CPU IPIs the secondaries to
turn off IRQs, go into real mode and wait in kexec_wait.  While this
is happening, the primary tears down all the MMU maps.  Unfortunately
the primary doesn't check to make sure the secondaries have entered
real mode before doing this.

On PHYP machines, the secondaries can take a long time shutting down
the IRQ controller as RTAS calls are need.  These RTAS calls need to
be serialised which resilts in the secondaries contending in
lock_rtas() and hence taking a long time to shut down.

We've hit this on large POWER7 machines, where some secondaries are
still waiting in lock_rtas(), when the primary tears down the HPTEs.

This patch makes sure all secondaries are in real mode before the
primary tears down the MMU.  It uses the new kexec_state entry in the
paca.  It times out if the secondaries don't reach real mode after
10sec.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:11 +10:00
Michael Neuling
1fc711f7ff powerpc/kexec: Fix race in kexec shutdown
In kexec_prepare_cpus, the primary CPU IPIs the secondary CPUs to
kexec_smp_down().  kexec_smp_down() calls kexec_smp_wait() which sets
the hw_cpu_id() to -1.  The primary does this while leaving IRQs on
which means the primary can take a timer interrupt which can lead to
the IPIing one of the secondary CPUs (say, for a scheduler re-balance)
but since the secondary CPU now has a hw_cpu_id = -1, we IPI CPU
-1... Kaboom!

We are hitting this case regularly on POWER7 machines.

There is also a second race, where the primary will tear down the MMU
mappings before knowing the secondaries have entered real mode.

Also, the secondaries are clearing out any pending IPIs before
guaranteeing that no more will be received.

This changes kexec_prepare_cpus() so that we turn off IRQs in the
primary CPU much earlier.  It adds a paca flag to say that the
secondaries have entered the kexec_smp_down() IPI and turned off IRQs,
rather than overloading hw_cpu_id with -1.  This new paca flag is
again used to in indicate when the secondaries has entered real mode.

It also ensures that all CPUs have their IRQs off before we clear out
any pending IPI requests (in kexec_cpu_down()) to ensure there are no
trailing IPIs left unacknowledged.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:11 +10:00
Michael Neuling
d504bed676 powerpc/kexec: Speedup kexec hash PTE tear down
Currently for kexec the PTE tear down on 1TB segment systems normally
requires 3 hcalls for each PTE removal. On a machine with 32GB of
memory it can take around a minute to remove all the PTEs.

This optimises the path so that we only remove PTEs that are valid.
It also uses the read 4 PTEs at once HCALL.  For the common case where
a PTEs is invalid in a 1TB segment, this turns the 3 HCALLs per PTE
down to 1 HCALL per 4 PTEs.

This gives an > 10x speedup in kexec times on PHYP, taking a 32GB
machine from around 1 minute down to a few seconds.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:11 +10:00
Michael Neuling
f90ece28c1 powerpc/pseries: Add hcall to read 4 ptes at a time in real mode
This adds plpar_pte_read_4_raw() which can be used read 4 PTEs from
PHYP at a time, while in real mode.

It also creates a new hcall9 which can be used in real mode.  It's the
same as plpar_hcall9 but minus the tracing hcall statistics which may
require variables outside the RMO.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:10 +10:00
Anton Blanchard
095c7965f4 powerpc: Use more accurate limit for first segment memory allocations
Author: Milton Miller <miltonm@bga.com>

On large machines we are running out of room below 256MB. In some cases we
only need to ensure the allocation is in the first segment, which may be
256MB or 1TB.

Add slb0_limit and use it to specify the upper limit for the irqstack and
emergency stacks.

On a large ppc64 box, this fixes a panic at boot when the crashkernel=
option is specified (previously we would run out of memory below 256MB).

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:10 +10:00
Anton Blanchard
5d7a87217d powerpc/kdump: Use chip->shutdown to disable IRQs
I saw this in a kdump kernel:

IOMMU table initialized, virtual merging enabled
Interrupt 155954 (real) is invalid, disabling it.
Interrupt 155953 (real) is invalid, disabling it.

ie we took some spurious interrupts. default_machine_crash_shutdown tries
to disable all interrupt sources but uses chip->disable which maps to
the default action of:

static void default_disable(unsigned int irq)
{
}

If we use chip->shutdown, then we actually mask the IRQ:

static void default_shutdown(unsigned int irq)
{
        struct irq_desc *desc = irq_to_desc(irq);

        desc->chip->mask(irq);
        desc->status |= IRQ_MASKED;
}

Not sure why we don't implement a ->disable action for xics.c, or why
default_disable doesn't mask the interrupt.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-21 17:31:10 +10:00