Граф коммитов

41868 Коммитов

Автор SHA1 Сообщение Дата
Linus Torvalds 3067e02f8f Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPICA: Update version to 20091112.
  ACPICA: Add additional module-level code support
  ACPICA: Deploy new create integer interface where appropriate
  ACPICA: New internal utility function to create Integer objects
  ACPICA: Add repair for predefined methods that must return sorted lists
  ACPICA: Fix possible fault if return Package objects contain NULL elements
  ACPICA: Add post-order callback to acpi_walk_namespace
  ACPICA: Change package length error message to an info message
  ACPICA: Reduce severity of predefined repair messages, Warning to Info
  ACPICA: Update version to 20091013
  ACPICA: Fix possible memory leak for Scope ASL operator
  ACPICA: Remove possibility of executing _REG methods twice
  ACPICA: Add repair for bad _MAT buffers
  ACPICA: Add repair for bad _BIF/_BIX packages
2009-12-09 19:57:06 -08:00
Linus Torvalds fa395aaec8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (51 commits)
  Input: appletouch - give up maintainership
  Input: dm355evm_kbd - switch to using sparse keymap library
  Input: wistron_btns - switch to using sparse keymap library
  Input: add generic support for sparse keymaps
  Input: fix memory leak in force feedback core
  Input: wistron - remove identification strings from DMI table
  Input: psmouse - remove identification strings from DMI tables
  Input: atkbd - remove identification strings from DMI table
  Input: i8042 - remove identification strings from DMI tables
  DMI: allow omitting ident strings in DMI tables
  Input: psmouse - do not carry DMI data around
  Input: matrix-keypad - switch to using dev_pm_ops
  Input: keyboard - fix lack of locking when traversing handler->h_list
  Input: gpio_keys - scan gpio state at probe and resume time
  Input: keyboard - add locking around event handling
  Input: usbtouchscreen - add support for ET&T TC5UH touchscreen controller
  Input: xpad - add two new Xbox 360 devices
  Input: polled device - do not start polling if interval is zero
  Input: polled device - schedule first poll immediately
  Input: add S3C24XX touchscreen driver
  ...
2009-12-09 19:52:01 -08:00
Linus Torvalds 6bb951a0a6 Merge branch 's3c24xx-updates' of git://git.fluff.org/bjdooks/linux
* 's3c24xx-updates' of git://git.fluff.org/bjdooks/linux:
  ARM: S3C24XX: DMA: Use valid index when accessing array
  ARM: S3C: move s3c_pwm_remove to .devexit.text
  ARM: S3C24XX: Export s3c24xx_set_fiq for modules.
  ARM: S3C: move s3c_adc_remove to .devexit.text
2009-12-09 19:45:58 -08:00
Linus Torvalds 4ef58d4e2a 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: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Linus Torvalds 701791cc3c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: export clk_* symbols in clk.c
  m68knommu: Split the .init section into INIT_TEXT_SECTION and INIT_DATA_SECTION.
  m68knommu: Move __init_end out of the .init section.
  m68knommu: Move __init_begin out of the .init section.
  m68knommu: Use more macros inside the .init section.
  m68knommu: Use INIT_TASK_DATA and CACHELINE_ALIGNED_DATA.
  m68knommu: Make THREAD_SIZE available to assembly files.
  m68knommu: Don't hardcode the value of PAGE_SIZE in the linker script.
  m68knommu: rename BSS define in linker script
  m68knommu: add a task_pt_regs() macro
  m68knommu: define arch_has_single_step() and friends
  m68knommu: add uboot commandline argument passing support
  m68knommu: Coldfire GPIO corrections
  m68knommu: move mcf_remove to .devexit.text

Fixed up (?) conflict in arch/m68k/include/asm/ptrace.h
2009-12-09 19:09:42 -08:00
Linus Torvalds 4ba152596d Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix cut/paste detritus from unistd.h
2009-12-09 19:03:49 -08:00
Linus Torvalds 3a43aaa317 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (137 commits)
  sh: include empty zero page in romImage
  sh: Make associative cache writes fatal on all SH-4A parts.
  sh: Drop associative writes for SH-4 cache flushes.
  sh: Partial revert of copy/clear_user_highpage() optimizations.
  sh: Add default uImage rule for se7724, ap325rxa, and migor.
  sh: allow runtime pm without suspend/resume callbacks
  sh: mach-ecovec24: Remove un-defined settings for VPU
  sh: mach-ecovec24: LCDC drive ability become high
  sh: fix sh7724 VEU3F resource size
  serial: sh-sci: Fix too early port disabling.
  sh: pfc: pr_info() -> pr_debug() cleanups.
  sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines.
  sh: Improve kfr2r09 serial port setup code
  sh: Break out SuperH PFC code
  sh: Move KEYSC header file
  sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file
  sh: Add CPG save/restore code for sh7724 R-standby
  sh: Add SDHI power control support to Ecovec
  mfd: Add power control platform data to SDHI driver
  sh: mach-ecovec24: modify address map
  ...
2009-12-09 19:03:16 -08:00
Linus Torvalds aed886ce77 Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci
* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (69 commits)
  davinci: Initial support for Neuros OSD2 platform.
  davinci: remove unused variable in arch/arm/mach-davinci/board-sffsdr.c
  davinci: fix section mismatch warning in arch/arm/mach-davinci/board-dm646x-evm.c
  DaVinci: DM365: Enable DaVinci RTC support for DM365 EVM
  DA8xx/OMAP-L1xx: Add high speed SD/MMC capabilities
  davinci: DA8XX/OMAP-L1XX: enable cpuidle and regulator in defconfig
  davinci: DA850/OMAP-L138: avoid using separate initcall for initializing regulator
  davinci: DA850/OMAP-L138 EVM: register for cpuidle support
  davinci: DA8XX/OMAP-L1XX: add support for cpuidle driver register
  davinci: add CPU idle driver
  davinci: DA8XX/OMAP-L1XX: fix compiler warning
  davinci: DA850/OMAP-L138: eliminate static function declaration
  davinci: DA850/OMAP-L138 EVM: simplify configuration of emac in MII/RMII mode
  davinci: DA850/OMAP-L138 EVM: get rid of DA850_UI_EXP config option
  davinci: DA850/OMAP-L138 EVM: implement autodetect of RMII PHY
  davinci: DA830/OMAP-L137 EVM: do not configure NAND on UI card when MMC/SD is selected
  davinci: DA830/OMAP-L137 EVM: use runtime detection for UI card
  davinci: DA830/OMAP-L137 EVM: remove ifdefs inside da830_evm_init()
  davinci: DA830/OMAP-L137 EVM: fix warning with default config
  davinci: Add NAND support for DA830/OMAP-L137 EVM platform
  ...
2009-12-09 19:02:46 -08:00
Linus Torvalds 67dd2f5a66 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (72 commits)
  [S390] 3215/3270 console: remove wrong comment
  [S390] dasd: remove BKL from extended error reporting code
  [S390] vmlogrdr: remove BKL
  [S390] vmur: remove BKL
  [S390] zcrypt: remove BKL
  [S390] 3270: remove BKL
  [S390] vmwatchdog: remove lock_kernel() from open() function
  [S390] monwriter: remove lock_kernel() from open() function
  [S390] monreader: remove lock_kernel() from open() function
  [S390] s390: remove unused nfsd #includes
  [S390] ftrace: build ftrace.o when CONFIG_FTRACE_SYSCALLS is set for s390
  [S390] etr/stp: put correct per cpu variable
  [S390] tty3270: move keyboard compat ioctls
  [S390] sclp: improve servicability setting
  [S390] s390: use change recording override for kernel mapping
  [S390] MAINTAINERS: Add s390 drivers block
  [S390] use generic sockios.h header file
  [S390] use generic termbits.h header file
  [S390] smp: remove unused typedef and defines
  [S390] cmm: free pages on hibernate.
  ...
2009-12-09 19:01:47 -08:00
Tomi Valkeinen d9056ce2af OMAP: SDP: Enable DSS2 for OMAP3 SDP board
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2009-12-09 18:29:38 +02:00
Linus Torvalds 2588465bad Merge branch 'bkl-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'bkl-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mn10300: Remove the BKL from sys_execve
  m68knommu: Remove the BKL from sys_execve
  m68k: Remove the BKL from sys_execve
  h83000: Remove BKL from sys_execve
  frv: Remove the BKL from sys_execve
  blackfin: Remove the BKL from sys_execve
  um: Remove BKL from mmapper
  um: Remove BKL from random
  s390: Remove BKL from prng
2009-12-09 08:07:51 -08:00
Catalin Marinas c52854018a ARM: RealView: Fix typo in the RealView/PBX Kconfig entry
A previous patch was introducing a SPARSEMEM dependency on
!HIGH_PHYS_OFFSET but it should actually be !REALVIEW_HIGH_PHYS_OFFSET.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2009-12-09 13:19:42 +00:00
Varun Swara 10b496832e ARM: Do not allow the probing of the local timer
Since this IRQ descriptor doesn't have an action registered, it is
allowed for probing via probe_irq_on/off() and it will be disabled by
the latter function. This patch sets the IRQ_NOPROBE status bit for the
local timer descriptor.

Signed-off-by: Varun Swara <Varun.Swara@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2009-12-09 13:19:31 +00:00
Tomi Valkeinen b39a982dde OMAP: DSS2: omapfb driver
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2009-12-09 12:12:44 +02:00
Tomi Valkeinen 559d670189 OMAP: DSS2: Display Subsystem Driver core
The core files of DSS2. DSS2 commits are split a bit artificially to
make the individual commits smaller, and DSS2 doesn't compile properly
without the rest of the core commits. This shouldn't be a problem, as no
configuration uses DSS2 yet.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2009-12-09 12:04:34 +02:00
Tomi Valkeinen 640f9ca5fd OMAP: Add support for VRFB rotation engine
VRFB rotation engine is a block in OMAP2/3 that offers 12 independent
contexts that can be used for framebuffer rotation.

Each context has a backend area of real memory, where it stores the
pixels in undisclosed format. This memory is offered to users via 4
virtual memory areas, which see the same memory area in different
rotation angles (0, 90, 180 and 270 degrees).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2009-12-09 12:04:33 +02:00
Tomi Valkeinen afedec183e OMAP: Add VRAM manager
Add a Video RAM manager for OMAP 2 and 3 platforms. VRAM manager is used
to allocate large continuous blocks of SDRAM or SRAM. The features VRAM
manager has that are missing from dma_alloc_* functions are:

- Support for OMAP2's SRAM
- Allocate without ioremapping
- Allocate at defined physical addresses
- Allows larger VRAM area and larger allocations

The upcoming DSS2 uses VRAM manager.

VRAM area size can be defined in kernel config, board file or with
kernel boot parameters. Board file definition overrides kernel config,
and boot parameter overrides kernel config and board file.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
2009-12-09 12:04:33 +02:00
Tomi Valkeinen dadd2bb931 OMAP: OMAPFB: add omapdss device
The upcoming new display subsystem driver is divided to two devices,
omapdss and omapfb, of which omapdss handles the actual hardware.

This patch adds a dummy omapdss platform device for the current omapfb
driver, which is then used to get the clocks. This will make it possible
for the current and the new display drivers to co-exist.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2009-12-09 12:04:32 +02:00
Tomi Valkeinen 91773a00f8 OMAP: OMAPFB: split omapfb.h
Split arch/arm/plat-omap/include/mach/omapfb.h into two files:

include/linux/omapfb.h - ioctls etc for userspace and some kernel
                         stuff for board files
drivers/video/omap/omapfb.h - for omapfb internal use

This cleans up omapfb.h and also makes it easier for the upcoming new
DSS driver to co-exist with the old driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2009-12-09 12:04:06 +02:00
Catalin Marinas 93fd03a8c6 ARM: Add an earlyprintk debug console
This patch allows an earlyprintk console if CONFIG_DEBUG_LL is enabled,
using the printch asm function.

The patch is based on the original work by Sascha Hauer.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2009-12-09 10:02:18 +00:00
Tomi Valkeinen b90f8e7296 OMAP2: Add funcs for writing SMS_ROT_* registers
SMS_ROT_* registers are used by VRFB rotation engine.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
2009-12-09 11:44:32 +02:00
Andy Isaacson a1884b8e55 x86: Print DMI_BOARD_NAME as well as DMI_PRODUCT_NAME from __show_regs()
Robert Hancock observes that DMI_BOARD_NAME is often more useful
than DMI_PRODUCT_NAME, especially on standalone motherboards.
So, print both.

Signed-off-by: Andy Isaacson <adi@hexapodia.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Cc: Richard Zidlicky <rz@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <20091208083021.GB27174@hexapodia.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-09 10:17:59 +01:00
Andy Isaacson 814e2c84a7 x86: Factor duplicated code out of __show_regs() into show_regs_common()
Unify x86_32 and x86_64 implementations of __show_regs() header,
standardizing on the x86_64 format string in the process. Also,
32-bit will now call print_modules.

Signed-off-by: Andy Isaacson <adi@hexapodia.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Cc: Richard Zidlicky <rz@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <20091208082942.GA27174@hexapodia.org>
[ v2: resolved conflict ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-09 10:17:58 +01:00
Frederic Weisbecker 44234adcdc hw-breakpoints: Modify breakpoints without unregistering them
Currently, when ptrace needs to modify a breakpoint, like disabling
it, changing its address, type or len, it calls
modify_user_hw_breakpoint(). This latter will perform the heavy and
racy task of unregistering the old breakpoint and registering a new
one.

This is racy as someone else might steal the reserved breakpoint
slot under us, which is undesired as the breakpoint is only
supposed to be modified, sometimes in the middle of a debugging
workflow. We don't want our slot to be stolen in the middle.

So instead of unregistering/registering the breakpoint, just
disable it while we modify its breakpoint fields and re-enable it
after if necessary.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Prasad <prasad@linux.vnet.ibm.com>
LKML-Reference: <1260347148-5519-1-git-send-regression-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-09 09:48:20 +01:00
Tejun Heo 51e99be00c m68k: rename global variable vmalloc_end to m68k_vmalloc_end
On SUN3, m68k defines macro VMALLOC_END as unsigned long variable
vmalloc_end which is adjusted from mmu_emu_init().  This becomes
problematic if a local variables vmalloc_end is defined in some
function (not very unlikely) and VMALLOC_END is used in the function -
the function thinks its referencing the global VMALLOC_END value but
would be referencing its own local vmalloc_end variable.

Rename the global variable to m68k_vmlloc_end which is much less
likely to be used as local variable name.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
2009-12-09 17:43:19 +09:00
Joe Perches f58e1f53de arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix
- Use #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- Remove "microcode: " prefix from each pr_<level>
- Fix duplicated KERN_ERR prefix
- Coalesce pr_<level> format strings
- Add a space after an exclamation point

No other change in output.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Andreas Herrmann <herrmann.der.user@googlemail.com>
LKML-Reference: <1260340250.27677.191.camel@Joe-Laptop.home>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-09 08:25:57 +01:00
Ingo Molnar 4c68db38c8 Merge branch 'linus' into x86/urgent
Merge reason: We want to queue up a dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-09 08:24:57 +01:00
Benjamin Herrenschmidt e090aa8032 powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
e821ea70f3 introduced a bug by copying
some 64-bit originated code as-is to be used by both 32 and 64-bit
but this code contains a 64-bit ony "cmpdi" instruction.

This changes it to cmpwi, which is fine since VRSAVE can only contains
a 32-bit value anyway.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@kernel.org>
2009-12-09 18:10:12 +11:00
Benjamin Herrenschmidt bcd6acd51f Merge commit 'origin/master' into next
Conflicts:
	include/linux/kvm.h
2009-12-09 17:14:38 +11:00
Mark Nelson 49bd364713 powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
At the moment when we EOI an interrupt we set the CPPR back to 0xFF
regardless of its previous value. This could lead to problems if we
take an interrupt with a priority of 5, but before EOIing it we get
an IPI which has a priority of 4. The problem is that at the moment
when we EOI the IPI we will set the CPPR to 0xFF, but it should
really be set back to 5 (the previous priority).

To keep track of the previous CPPR values we create the xics_cppr
structure that has an array for CPPR values and an index pointing
to the current priority. This can easily grow if new priorities get
added in the future.

This will also be useful because the partition adjunct option of
upcoming machines will update the H_XIRR hcall to accept the CPPR
as a parameter.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:38 +11:00
Nathan Fontenot 275a64f604 powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
The recent patch to add cpu offline/online as part of the DLPAR
process for pseries causes a build break if CONFIG_SMP is not
defined.  Original patch here;
http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-November/078299.html

This corrects the build break by moving the online_node_cpus
and offline_node_cpus under the #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
portions of dlpar.c.

This patch also slightly modifies the online_node_cpus and offline_node_cpus
routines to prepend dlpar_ to the them and make them static.  These two
routine are only used in the dlpar add/remove of cpus and these changes
should help clarify that.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:38 +11:00
Roman Fietze 40d50cf7ca powerpc: Make "intspec" pointers in irq_host->xlate() const
Writing a driver using SCLPC on the MPC5200B I detected, that the
intspec arrays to map irqs to Linux virq cannot be const, because the
mapping and xlate functions only take non const pointers. All those
functions do not modify the intspec, so a const pointer could be used.

Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Joakim Tjernlund 990d89c663 powerpc/8xx: DTLB Miss cleanup
Use symbolic constant for PRESENT and avoid branching.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Joakim Tjernlund 2321f33790 powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
There is no need to do set the DIRTY bit directly in DTLB Error.
Trap to do_page_fault() and let the generic MM code do the work.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Joakim Tjernlund 15d914d72a powerpc/8xx: Start using dcbX instructions in various copy routines
Now that 8xx can fixup dcbX instructions, start using them
where possible like every other PowerPc arch do.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Joakim Tjernlund 0c4661698c powerpc/8xx: Restore _PAGE_WRITETHRU
8xx has not had WRITETHRU due to lack of bits in the pte.
After the recent rewrite of the 8xx TLB code, there are
two bits left. Use one of them to WRITETHRU.

Perhaps use the last SW bit to PAGE_SPECIAL or PAGE_FILE?

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Joakim Tjernlund 4a280a413c powerpc/8xx: Add missing Guarded setting in DTLB Error.
only DTLB Miss did set this bit, DTLB Error needs too otherwise
the setting is lost when the page becomes dirty.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:36 +11:00
Joakim Tjernlund 0a2ab51ffb powerpc/8xx: Fixup DAR from buggy dcbX instructions.
This is an assembler version to fixup DAR not being set
by dcbX, icbi instructions. There are two versions, one
uses selfmodifing code, the other uses a
jump table but is much bigger(default).

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:36 +11:00
Joakim Tjernlund 60e071fee9 powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
dcbz, dcbf, dcbi, dcbst and icbi do not set DAR when they
cause a DTLB Error. Dectect this by tagging DAR with 0x00f0
at every exception exit that modifies DAR.
Test for DAR=0x00f0 in DataTLBError and bail
to handle_page_fault().

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:36 +11:00
Joakim Tjernlund fe11dc3f96 powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
Update the TLB asm to make proper use of _PAGE_DIRY and _PAGE_ACCESSED.
Get rid of _PAGE_HWWRITE too.
Pros:
 - I/D TLB Miss never needs to write to the linux pte.
 - _PAGE_ACCESSED is only set on TLB Error fixing accounting
 - _PAGE_DIRTY is mapped to 0x100, the changed bit, and is set directly
    when a page has been made dirty.
 - Proper RO/RW mapping of user space.
 - Free up 2 SW TLB bits in the linux pte(add back _PAGE_WRITETHRU ?)
 - kernel RO/user NA support.
Cons:
 - A few more instructions in the TLB Miss routines.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:36 +11:00
Joakim Tjernlund 5efab4a02c powerpc/8xx: Invalidate non present TLBs
8xx sometimes need to load a invalid/non-present TLBs in
it DTLB asm handler.

These must be invalidated separaly as linux mm don't.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:35 +11:00
Benjamin Herrenschmidt 0285ae37d4 Merge commit 'jwb/next' into next 2009-12-09 17:10:29 +11:00
Benjamin Herrenschmidt 8c82da5e24 Merge commit 'gcl/next' into next 2009-12-09 17:10:22 +11:00
Gautham R Shenoy 51badebdcf powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
Currently the cpu-allocation/deallocation process comprises of two steps:
- Set the indicators and to update the device tree with DLPAR node
  information.

- Online/offline the allocated/deallocated CPU.

This is achieved by writing to the sysfs tunables "probe" during allocation
and "release" during deallocation.

At the sametime, the userspace can independently online/offline the CPUs of
the system using the sysfs tunable "online".

It is quite possible that when a userspace tool offlines a CPU
for the purpose of deallocation and is in the process of updating the device
tree, some other userspace tool could bring the CPU back online by writing to
the "online" sysfs tunable thereby causing the deallocate process to fail.

The solution to this is to serialize writes to the "probe/release" sysfs
tunable with the writes to the "online" sysfs tunable.

This patch employs a mutex to provide this serialization, which is a no-op on
all architectures except PPC_PSERIES

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Acked-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:36 +11:00
Gautham R Shenoy b6db63d1a7 pseries/pseries: Add code to online/offline CPUs of a DLPAR node
Currently the cpu-allocation/deallocation on pSeries is a
two step process from the Userspace.

- Set the indicators and update the device tree by writing to the sysfs
  tunable "probe" during allocation and "release" during deallocation.
- Online / Offline the CPUs of the allocated/would_be_deallocated node by
  writing to the sysfs tunable "online".

This patch adds kernel code to online/offline the CPUs soon_after/just_before
they have been allocated/would_be_deallocated. This way, the userspace tool
that performs DLPAR operations would only have to deal with one set of sysfs
tunables namely "probe" and release".

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Acked-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:35 +11:00
Valentine Barshak 8389b37dff powerpc: stop_this_cpu: remove the cpu from the online map.
Remove the CPU from the online map to prevent smp_call_function
from sending messages to a stopped CPU.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:34 +11:00
Nathan Fontenot 1a8061c46c powerpc/pseries: Add kernel based CPU DLPAR handling
This patch adds the specific routines to probe and release (add and remove)
cpu resource for the powerpc pseries platform and registers these handlers
with the ppc_md callout structure.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:34 +11:00
Nathan Fontenot 12633e803a sysfs/cpu: Add probe/release files
Version 3 of this patch is updated with documentation added to
Documentation/ABI.  There are no changes to any of the C code from v2
of the patch.

In order to support kernel DLPAR of CPU resources we need to provide an
interface to add (probe) and remove (release) the resource from the system.
This patch Creates new generic probe and release sysfs files to facilitate
cpu probe/release.  The probe/release interface provides for allowing each
arch to supply their own routines for implementing the backend of adding
and removing cpus to/from the system.

This also creates the powerpc specific stubs to handle the arch callouts
from writes to the sysfs files.

The creation and use of these files is regulated by the
CONFIG_ARCH_CPU_PROBE_RELEASE option so that only architectures that need the
capability will have the files created.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:33 +11:00
Nathan Fontenot ab519a011c powerpc/pseries: Kernel DLPAR Infrastructure
The Dynamic Logical Partitioning capabilities of the powerpc pseries platform
allows for the addition and removal of resources (i.e. CPU's, memory, and PCI
devices) from a partition. The removal of a resource involves
removing the resource's node from the device tree and then returning the
resource to firmware via the rtas set-indicator call.  To add a resource, it
is first obtained from firmware via the rtas set-indicator call and then a
new device tree node is created using the ibm,configure-coinnector rtas call
and added to the device tree.

This patch provides the kernel DLPAR infrastructure in a new filed named
dlpar.c.  The functionality provided is for acquiring and releasing a resource
from firmware and the parsing of information returned from the
ibm,configure-connector rtas call.  Additionally this exports the pSeries
reconfiguration notifier chain so that it can be invoked when device tree
updates are made.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:32 +11:00
Benjamin Herrenschmidt d58b0c39e3 powerpc/macio: Rework hotplug media bay support
The hotplug mediabay has tendrils deep into drivers/ide code
which makes a libata port reather difficult. In addition it's
ugly and could be done better.

This reworks the interface between the mediabay and the rest
of the world so that:

   - Any macio_driver can now have a mediabay_event callback
which will be called when that driver sits on a mediabay and
it's been either plugged or unplugged. The device type is
passed as an argument. We can now move all the IDE cruft
into the IDE driver itself

   - A check_media_bay() function can be used to take a peek
at the type of device currently in the bay if any, a cleaner
variant of the previous function with the same name.

   - A pair of lock/unlock functions are exposed to allow the
IDE driver to block the hotplug callbacks during the initial
setup and probing of the bay in order to avoid nasty race
conditions.

   - The mediabay code no longer needs to spin on the status
register of the IDE interface when it detects an IDE device,
this is done just fine by the IDE code itself

Overall, less code, simpler, and allows for another driver
than our old drivers/ide based one.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:09:14 +11:00
Linus Torvalds fbf07eac7b Merge branch 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  hrtimer: Fix /proc/timer_list regression
  itimers: Fix racy writes to cpu_itimer fields
  timekeeping: Fix clock_gettime vsyscall time warp
2009-12-08 19:28:09 -08:00
Linus Torvalds 60d8ce2cd6 Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  timers, init: Limit the number of per cpu calibration bootup messages
  posix-cpu-timers: optimize and document timer_create callback
  clockevents: Add missing include to pacify sparse
  x86: vmiclock: Fix printk format
  x86: Fix printk format due to variable type change
  sparc: fix printk for change of variable type
  clocksource/events: Fix fallout of generic code changes
  nohz: Allow 32-bit machines to sleep for more than 2.15 seconds
  nohz: Track last do_timer() cpu
  nohz: Prevent clocksource wrapping during idle
  nohz: Type cast printk argument
  mips: Use generic mult/shift factor calculation for clocks
  clocksource: Provide a generic mult/shift factor calculation
  clockevents: Use u32 for mult and shift factors
  nohz: Introduce arch_needs_cpu
  nohz: Reuse ktime in sub-functions of tick_check_idle.
  time: Remove xtime_cache
  time: Implement logarithmic time accumulation
2009-12-08 19:27:08 -08:00
Linus Torvalds 849e8dea09 Merge branch 'timers-for-linus-hpet' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-hpet' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: hpet: Make WARN_ON understandable
  x86: arch specific support for remapping HPET MSIs
  intr-remap: generic support for remapping HPET MSIs
  x86, hpet: Simplify the HPET code
  x86, hpet: Disable per-cpu hpet timer if ARAT is supported
2009-12-08 19:26:55 -08:00
Linus Torvalds e069efb6bb 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:
  hwrng: core - Prevent too-small buffer sizes
  hwrng: virtio-rng - Convert to new API
  hwrng: core - Replace u32 in driver API with byte array
  crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS
  crypto: testmgr - Add ghash algorithm test before provide to users
  crypto: ghash-clmulni-intel - Put proper .data section in place
  crypto: ghash-clmulni-intel - Use gas macro for PCLMULQDQ-NI and PSHUFB
  crypto: aesni-intel - Use gas macro for AES-NI instructions
  x86: Generate .byte code for some new instructions via gas macro
  crypto: ghash-intel - Fix irq_fpu_usable usage
  crypto: ghash-intel - Add PSHUFB macros
  crypto: ghash-intel - Hard-code pshufb
  crypto: ghash-intel - Fix building failure on x86_32
  crypto: testmgr - Fix warning
  crypto: ansi_cprng - Fix test in get_prng_bytes
  crypto: hash - Remove cra_u.{digest,hash}
  crypto: api - Remove digest case from procfs show handler
  crypto: hash - Remove legacy hash/digest code
  crypto: ansi_cprng - Add FIPS wrapper
  crypto: ghash - Add PCLMULQDQ accelerated implementation
2009-12-08 15:55:13 -08:00
Tony Luck 27a338a69e [IA64] Fix cut/paste detritus from unistd.h
Build warning:
<stdin>:1523:2: warning: #warning syscall recvmmsg not implemented

Because when recvmmesg was added, the previous syscall define was
cut&pasted, and a spurious "rt_" left in the name of the define.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-12-08 15:29:05 -08:00
Ramax Lo 947a246279 ARM: S3C24XX: DMA: Use valid index when accessing array
The DMA_CH_VALID bit used in the channel index should be masked out before
using it to access the channel array.

Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-08 23:09:05 +00:00
Linus Torvalds 3ff6a468b4 Merge branch 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  cpumask: Use modern cpumask style in Xen
2009-12-08 13:38:33 -08:00
Linus Torvalds 4646575daf Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: UV RTC: Always enable RTC clocksource
  x86: UV RTC: Rename generic_interrupt to x86_platform_ipi
  x86: UV RTC: Clean up error handling
  x86: UV RTC: Add clocksource only boot option
  x86: UV RTC: Fix early expiry handling
2009-12-08 13:38:21 -08:00
Linus Torvalds 86ed4aa457 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, mce: don't restart timer if disabled
  x86: Use -maccumulate-outgoing-args for sane mcount prologues
  x86: Prevent GCC 4.4.x (pentium-mmx et al) function prologue wreckage
  x86: AMD Northbridge: Verify NB's node is online
  x86 VSDO: Fix Kconfig help
  x86: Fix typo in Intel CPU cache size descriptor
  x86: Add new Intel CPU cache size descriptors
2009-12-08 13:38:11 -08:00
Linus Torvalds 830cd2ac6e Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  vgacon: Add support for setting the default cursor state
  vc: Add support for hiding the cursor when creating VTs
  x86, setup: Store the boot cursor state
2009-12-08 13:35:29 -08:00
Linus Torvalds 64227cd83d Merge branch 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/reboot: Add pci_dev_put in reboot_fixup_32.c for consistency
2009-12-08 13:35:18 -08:00
Linus Torvalds e7522ed5c0 Merge branch 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86-64: merge the standard and compat start_thread() functions
  x86-64: make compat_start_thread() match start_thread()
2009-12-08 13:34:53 -08:00
Linus Torvalds b391738bd1 Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: pat: Remove ioremap_default()
  x86: pat: Clean up req_type special case for reserve_memtype()
  x86: Relegate CONFIG_PAT and CONFIG_MTRR configurability to EMBEDDED
2009-12-08 13:34:17 -08:00
Linus Torvalds e33c019722 Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits)
  x86, mm: Correct the implementation of is_untracked_pat_range()
  x86/pat: Trivial: don't create debugfs for memtype if pat is disabled
  x86, mtrr: Fix sorting of mtrr after subtracting
  x86: Move find_smp_config() earlier and avoid bootmem usage
  x86, platform: Change is_untracked_pat_range() to bool; cleanup init
  x86: Change is_ISA_range() into an inline function
  x86, mm: is_untracked_pat_range() takes a normal semiclosed range
  x86, mm: Call is_untracked_pat_range() rather than is_ISA_range()
  x86: UV SGI: Don't track GRU space in PAT
  x86: SGI UV: Fix BAU initialization
  x86, numa: Use near(er) online node instead of roundrobin for NUMA
  x86, numa, bootmem: Only free bootmem on NUMA failure path
  x86: Change crash kernel to reserve via reserve_early()
  x86: Eliminate redundant/contradicting cache line size config options
  x86: When cleaning MTRRs, do not fold WP into UC
  x86: remove "extern" from function prototypes in <asm/proto.h>
  x86, mm: Report state of NX protections during boot
  x86, mm: Clean up and simplify NX enablement
  x86, pageattr: Make set_memory_(x|nx) aware of NX support
  x86, sleep: Always save the value of EFER
  ...

Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range)
to 'struct x86_platform_ops') in
	arch/x86/include/asm/x86_init.h
	arch/x86/kernel/x86_init.c
2009-12-08 13:27:33 -08:00
Linus Torvalds 343036cea2 Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: ucode-amd: Move family check to microcde_amd.c's init function
  x86, ucode-amd: Ensure ucode update on suspend/resume after CPU off/online cycle
  x86: ucode-amd: Convert printk(KERN_*...) to pr_*(...)
  x86: ucode-amd: Don't warn when no ucode is available for a CPU revision
  x86: ucode-amd: Load ucode-patches once and not separately of each CPU
  x86, amd-ucode: Remove needless log messages
2009-12-08 13:25:10 -08:00
Hidetoshi Seto 5c0e9f28da x86, mce: fix confusion between bank attributes and mce attributes
Commit cebe182033 had an unnecessary,
wrong change: &mce_banks[i].attr is equivalent to the former
bank_attrs[i], not to mce_attrs[i].

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Acked-by: Andi Kleen <andi@firstfloor.org>
LKML-Reference: <4B1E05CC.4040703@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-12-08 12:11:20 -08:00
Linus Torvalds 6035ccd8e9 Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits)
  cfq-iosched: Do not access cfqq after freeing it
  block: include linux/err.h to use ERR_PTR
  cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit
  blkio: Allow CFQ group IO scheduling even when CFQ is a module
  blkio: Implement dynamic io controlling policy registration
  blkio: Export some symbols from blkio as its user CFQ can be a module
  block: Fix io_context leak after failure of clone with CLONE_IO
  block: Fix io_context leak after clone with CLONE_IO
  cfq-iosched: make nonrot check logic consistent
  io controller: quick fix for blk-cgroup and modular CFQ
  cfq-iosched: move IO controller declerations to a header file
  cfq-iosched: fix compile problem with !CONFIG_CGROUP
  blkio: Documentation
  blkio: Wait on sync-noidle queue even if rq_noidle = 1
  blkio: Implement group_isolation tunable
  blkio: Determine async workload length based on total number of queues
  blkio: Wait for cfq queue to get backlogged if group is empty
  blkio: Propagate cgroup weight updation to cfq groups
  blkio: Drop the reference to queue once the task changes cgroup
  blkio: Provide some isolation between groups
  ...
2009-12-08 08:19:16 -08:00
Linus Torvalds 1c496784a0 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: (149 commits)
  arm: omap: Add omap3_defconfig
  AM35xx: Defconfig for AM3517 EVM board
  AM35xx: Add support for AM3517 EVM board
  omap: 3630sdp: defconfig creation
  omap: 3630sdp: introduce 3630 sdp board support
  omap3: Add defconfig for IGEP v2 board
  omap3: Add minimal IGEP v2 support
  omap3: Add CompuLab CM-T35 defconfig
  omap3: Add CompuLab CM-T35 board support
  omap3: rx51: Add wl1251 wlan driver support
  omap3: rx51: Add SDRAM init
  omap1: Add default kernel configuration for Herald
  omap1: Add board support and LCD for HTC Herald
  omap: zoom2: update defconfig for LL_DEBUG_NONE
  omap: zoom3: defconfig creation
  omap3: zoom: Introduce zoom3 board support
  omap3: zoom: Drop i2c-1 speed to 2400
  omap3: zoom: rename zoom2 name to generic zoom
  omap3: zoom: split board file for software reuse
  omap3evm: MIgrate to smsc911x ethernet driver
  ...

Fix trivial conflict (two unrelated config options added next to each
other) in arch/arm/mach-omap2/Makefile
2009-12-08 08:15:29 -08:00
Linus Torvalds adf9904dc7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: parport_mfc3 - Not makes it a bool before the comparison.
  m68k: don't export static inline functions
  fbdev: atafb - add palette register check
  m68k: Remove the BKL from sys_execve
  m68k: Cleanup linker scripts using new linker script macros.
  m68k: Make thread_info.h usable from assembly.
  m68knommu: define arch_has_single_step() and friends
  m68k: ptrace fixes
  m68k: use generic code for ptrace requests
  rtc: Add an RTC driver for the Ricoh RP5C01
  rtc: Add an RTC driver for the Oki MSM6242
2009-12-08 08:13:35 -08:00
Linus Torvalds 79c9601c2e Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (272 commits)
  Fix soc_common PCMCIA configuration
  ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request
  ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver
  ARM: 5825/1: SA1100: h3600: update defconfig
  ARM: 5824/1: SA1100: reuse h3600 PCMCIA driver on h3100
  ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys
  ARM: 5822/1: SA1100: h3100/h3600: clean up #includes
  ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates
  ARM: 5820/1: SA1100: h3100/h3600: split h3600.c
  ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h
  ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions
  ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs
  ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions
  ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers
  ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib
  ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver
  ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers
  ARM: 5811/2: pcmcia: convert sa1100_h3600 driver to gpiolib
  ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins
  ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h
  ...
2009-12-08 08:12:43 -08:00
Linus Torvalds 41440ffe21 Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-stub: Documentation update
  i2c-stub: Allow user to disable some commands
  i2c-stub: Implement I2C block support
  i2c: Refactor for_each callbacks
  i2c-i801: Retry on lost arbitration
  i2c: Remove big kernel lock from i2cdev_open
  ics932s401: Clean up detect function
  i2c: Simplify i2c_detect_address
  i2c: Drop probe, ignore and force module parameters
  i2c: Add missing __devinit markers to old i2c adapter drivers
  i2c: Bus drivers don't have to support I2C_M_REV_DIR_ADDR
  i2c: Prevent priority inversion on top of bus lock
  i2c-voodoo3: Delete
  i2c-powermac: Drop temporary name buffer
  i2c-powermac: Include the i2c_adapter in struct pmac_i2c_bus
  i2c-powermac: Log errors
  i2c-powermac: Refactor i2c_powermac_smbus_xfer
  i2c-powermac: Reject unsupported I2C transactions
  i2c/chips: Move ds1682 to drivers/misc
2009-12-08 08:12:16 -08:00
Linus Torvalds ed9216c171 Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (84 commits)
  KVM: VMX: Fix comparison of guest efer with stale host value
  KVM: s390: Fix prefix register checking in arch/s390/kvm/sigp.c
  KVM: Drop user return notifier when disabling virtualization on a cpu
  KVM: VMX: Disable unrestricted guest when EPT disabled
  KVM: x86 emulator: limit instructions to 15 bytes
  KVM: s390: Make psw available on all exits, not just a subset
  KVM: x86: Add KVM_GET/SET_VCPU_EVENTS
  KVM: VMX: Report unexpected simultaneous exceptions as internal errors
  KVM: Allow internal errors reported to userspace to carry extra data
  KVM: Reorder IOCTLs in main kvm.h
  KVM: x86: Polish exception injection via KVM_SET_GUEST_DEBUG
  KVM: only clear irq_source_id if irqchip is present
  KVM: x86: disallow KVM_{SET,GET}_LAPIC without allocated in-kernel lapic
  KVM: x86: disallow multiple KVM_CREATE_IRQCHIP
  KVM: VMX: Remove vmx->msr_offset_efer
  KVM: MMU: update invlpg handler comment
  KVM: VMX: move CR3/PDPTR update to vmx_set_cr3
  KVM: remove duplicated task_switch check
  KVM: powerpc: Fix BUILD_BUG_ON condition
  KVM: VMX: Use shared msr infrastructure
  ...

Trivial conflicts due to new Kconfig options in arch/Kconfig and kernel/Makefile
2009-12-08 08:02:38 -08:00
Linus Torvalds d7fc02c7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
  mac80211: fix reorder buffer release
  iwmc3200wifi: Enable wimax core through module parameter
  iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
  iwmc3200wifi: Coex table command does not expect a response
  iwmc3200wifi: Update wiwi priority table
  iwlwifi: driver version track kernel version
  iwlwifi: indicate uCode type when fail dump error/event log
  iwl3945: remove duplicated event logging code
  b43: fix two warnings
  ipw2100: fix rebooting hang with driver loaded
  cfg80211: indent regulatory messages with spaces
  iwmc3200wifi: fix NULL pointer dereference in pmkid update
  mac80211: Fix TX status reporting for injected data frames
  ath9k: enable 2GHz band only if the device supports it
  airo: Fix integer overflow warning
  rt2x00: Fix padding bug on L2PAD devices.
  WE: Fix set events not propagated
  b43legacy: avoid PPC fault during resume
  b43: avoid PPC fault during resume
  tcp: fix a timewait refcnt race
  ...

Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
	kernel/sysctl_check.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv6/addrconf.c
	net/sctp/sysctl.c
2009-12-08 07:55:01 -08:00
Linus Torvalds ee1262dbc6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
  sparc: Set UTS_MACHINE correctly.
  sparc,leon: init_leon srmmu cleanup
  sparc32: Remove early interrupt enable.
  sparc, leon: Added Aeroflex Gaisler entry in manufacturer_info structure
  sparc64: Faster early-boot framebuffer console.
  Revert "sparc: Make atomic locks raw"
  sparc: remove unused nfsd #includes
  sparc: Fixup last users of irq_chip->typename
  Added sparc_leon3_snooping_enabled() and converted extern inline to static inline
  No auxio on LEON
  apbuart: Use of_find_node_by_path to find root node.
  sparc: Replace old style lock initializer
  sparc: Make atomic locks raw
  apbuart: Fix build and missing driver unregister.
  apbuart: Kill dependency on deprecated Sparc-only PROM interfaces.
  apbuart: Fix build warning.
  sparc: Support for GRLIB APBUART serial port
  watchdog: Remove BKL from rio watchdog driver
  sparc: Remove BKL from apc
  sparc,leon: Sparc-Leon SMP support
2009-12-08 07:48:23 -08:00
Linus Torvalds a421018e8c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (294 commits)
  S3C64XX: Staticise platform data for PCM devices
  ASoC: Rename controls with a / in wm_hubs
  snd-fm801: autodetect SF64-PCR (tuner-only) card
  ALSA: tea575x-tuner: fix mute
  ASoC: au1x: dbdma2: plug memleak in pcm device creation error path
  ASoC: au1x: dbdma2: fix oops on soc device removal.
  ALSA: hda - Fix memory leaks in the previous patch
  ALSA: hda - Add ALC661/259, ALC892/888VD support
  ALSA: opti9xx: remove snd_opti9xx fields
  ALSA: aaci - Clean up duplicate code
  ALSA: usb - Fix mixer map for Hercules Gamesurround Muse Pocket LT
  ALSA: hda - Add position_fix quirk for HP dv3
  ALSA: hda - Add a pin-fix for FSC Amilo Pi1505
  ALSA: hda - Fix Cxt5047 test mode
  ASoC: pxa/raumfeld: adopt new snd_soc_dai_set_pll() API
  ASoC: sh: fsi: Add runtime PM support
  sh: ms7724se: Add runtime PM support for FSI
  ALSA: hda - Add a position_fix quirk for MSI Wind U115
  ALSA: opti-miro: add PnP detection
  ALSA: opti-miro: separate comon probing code
  ...
2009-12-08 07:47:46 -08:00
Linus Torvalds 3ad1f3b35e Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  of: merge of_find_all_nodes() implementations
  of: merge other miscellaneous prototypes
  of: merge of_*_flat_dt*() functions
  of: merge of_node_get(), of_node_put() and of_find_all_nodes()
  of: merge of_read_number() an of_read_ulong()
  of: merge of_node_*_flag() and set_node_proc_entry()
  of: merge struct boot_param_header from Microblaze and PowerPC
  of: add common header for flattened device tree representation
  of: Move OF_IS_DYNAMIC and OF_MARK_DYNAMIC macros to of.h
  of: merge struct device_node
  of: merge phandle, ihandle and struct property
  of: Rework linux/of.h and asm/prom.h include ordering
2009-12-08 07:46:56 -08:00
Linus Torvalds 1557d33007 Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
  security/tomoyo: Remove now unnecessary handling of security_sysctl.
  security/tomoyo: Add a special case to handle accesses through the internal proc mount.
  sysctl: Drop & in front of every proc_handler.
  sysctl: Remove CTL_NONE and CTL_UNNUMBERED
  sysctl: kill dead ctl_handler definitions.
  sysctl: Remove the last of the generic binary sysctl support
  sysctl net: Remove unused binary sysctl code
  sysctl security/tomoyo: Don't look at ctl_name
  sysctl arm: Remove binary sysctl support
  sysctl x86: Remove dead binary sysctl support
  sysctl sh: Remove dead binary sysctl support
  sysctl powerpc: Remove dead binary sysctl support
  sysctl ia64: Remove dead binary sysctl support
  sysctl s390: Remove dead sysctl binary support
  sysctl frv: Remove dead binary sysctl support
  sysctl mips/lasat: Remove dead binary sysctl support
  sysctl drivers: Remove dead binary sysctl support
  sysctl crypto: Remove dead binary sysctl support
  sysctl security/keys: Remove dead binary sysctl support
  sysctl kernel: Remove binary sysctl logic
  ...
2009-12-08 07:38:50 -08:00
Benjamin Herrenschmidt 128b4a0ef7 powerpc/macio: Add dma_parms support to macio
This adds dma_parms to macio devices and initializes them with
default values. This will allow pata_macio to setup the appropriate
max segment size for the block layer.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-08 16:02:52 +11:00
Benjamin Herrenschmidt 7fb19ea054 powerpc/macio: Add devres support to macio_device
This adds some basic devres support. When enabled via macio_enable_devres()
resources requested by drivers will be automatically released.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-08 16:02:51 +11:00
Alexander Graf e15a113700 powerpc/kvm: Sync guest visible MMU state
Currently userspace has no chance to find out which virtual address space we're
in and resolve addresses. While that is a big problem for migration, it's also
unpleasent when debugging, as gdb and the monitor don't work on virtual
addresses.

This patch exports enough of the MMU segment state to userspace to make
debugging work and thus also includes the groundwork for migration.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-08 16:02:50 +11:00
David Gibson d28513bc7f powerpc/mm: Fix pgtable cache cleanup with CONFIG_PPC_SUBPAGE_PROT
Commit a0668cdc15 cleans up the handling
of kmem_caches for allocating various levels of pagetables.
Unfortunately, it conflicts badly with CONFIG_PPC_SUBPAGE_PROT, due to
the latter's cleverly hidden technique of adding some extra allocation
space to the top level page directory to store the extra information
it needs.

Since that extra allocation really doesn't fit into the cleaned up
page directory allocating scheme, this patch alters
CONFIG_PPC_SUBPAGE_PROT to instead allocate its struct
subpage_prot_table as part of the mm_context_t.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-08 15:59:33 +11:00
Jan Beulich bc09effabf x86/mce: Set up timer unconditionally
mce_timer must be passed to setup_timer() in all cases, no
matter whether it is going to be actually used. Otherwise, when
the CPU gets brought down, its call to del_timer_sync() will
never return, as the timer won't have a base associated, and
hence lock_timer_base() will loop infinitely.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: <stable@kernel.org>
LKML-Reference: <4B1DB831.2030801@jp.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-08 05:34:39 +01:00
Uwe Kleine-König 93b0d8c6b6 ARM: S3C: move s3c_pwm_remove to .devexit.text
The function s3c_pwm_remove is used only wrapped by __devexit_p so define
it using __devexit.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-08 00:45:55 +00:00
Ben Dooks 0f13c82480 ARM: S3C24XX: Export s3c24xx_set_fiq for modules.
Allow s3c24xx_set_fiq() to be exported so that it can be used by modules
wanting FIQ support.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-08 00:45:55 +00:00
Uwe Kleine-König ad4e22fa47 ARM: S3C: move s3c_adc_remove to .devexit.text
The function s3c_adc_remove is used only wrapped by __devexit_p so define
it using __devexit.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-By: Ben Dooks <ben@simtec.co.uk>
Cc: Ramax Lo <ramaxlo@gmail.com>
Cc: Nelson Castillo <arhuaco@freaks-unidos.net>
Cc: linux-kernel@vger.kernel.org
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ryan Mallon <ryan@bluewatersys.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-08 00:45:55 +00:00
Jiri Kosina d014d04386 Merge branch 'for-next' into for-linus
Conflicts:

	kernel/irq/chip.c
2009-12-07 18:36:35 +01:00
Masami Hiramatsu d32ba45503 x86 insn: Delete empty or incomplete inat-tables.c
Delete empty or incomplete inat-tables.c if gen-insn-attr-x86.awk
failed, because it causes a build error if user tries to build
kernel next time.

Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091207170033.19230.37688.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-07 18:33:19 +01:00
Thomas Gleixner a946d8f11f x86: Fix bogus warning in apic_noop.apic_write()
apic_noop is used to provide dummy apic functions. It's installed
when the CPU has no APIC or when the APIC is disabled on the kernel
command line.

The apic_noop implementation of apic_write() warns when the CPU has
an APIC or when the APIC is not disabled.

That's bogus. The warning should only happen when the CPU has an
APIC _AND_ the APIC is not disabled. apic_noop.apic_read() has the
correct check.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: <stable@kernel.org> # in <= .32 this typo resides in native_apic_write_dummy()
LKML-Reference: <alpine.LFD.2.00.0912071255420.3089@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-07 13:16:37 +01:00
Ingo Molnar f3d607c6b3 Merge branch 'linus' into x86/urgent
Merge reason: we want to queue up a dependent fix.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-07 13:14:18 +01:00
Boaz Harrosh 2da3cf9755 [S390] s390: remove unused nfsd #includes
Some unused includes removed.

This patch is in an effort to cleanup nfsd headers and move
private definitions to source directory.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:38 +01:00
Aristeu Rozanski b0694685bc [S390] ftrace: build ftrace.o when CONFIG_FTRACE_SYSCALLS is set for s390
Trying to build a s390x kernel with CONFIG_FTRACE_SYSCALLS will fail
because ftrace.o is not built/linked.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:38 +01:00
Heiko Carstens bd119ee29b [S390] etr/stp: put correct per cpu variable
Fix this compile error in linux-next:

arch/s390/kernel/time.c: In function 'get_sync_clock':
arch/s390/kernel/time.c:337: error: 'clock_sync_sync' undeclared (first use in this function)

Gets exposed because the new per cpu code references the variable
passed to put_cpu_var. This was not a real bug.

Reported-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:38 +01:00
Christian Borntraeger 6a985c6194 [S390] s390: use change recording override for kernel mapping
We dont need the dirty bit if a write access is done via the kernel
mapping. In that case SetPageDirty and friends are used anyway, no
need to do that a second time. We can use the change-recording
overide function for the kernel mapping, if available.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:37 +01:00
Christian Borntraeger 2f319a5249 [S390] use generic sockios.h header file
A compare shows that arch/s390/include/asm/sockios.h is the same as
include/asm-generic/sockios.h. This patch lets
arch/s390/include/asm/ termbits.h include the generic header.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:37 +01:00
Christian Borntraeger df27d7baf6 [S390] use generic termbits.h header file
A compare shows that arch/s390/include/asm/termbits.h is the same as
include/asm-generic.h. This patch lets arch/s390/include/asm/termbits.h
include the generic header.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:37 +01:00
Heiko Carstens c20c89a692 [S390] smp: remove unused typedef and defines
Remove unused typedef, defines, update copyright, remove unneeded
includes, remove unneeded ifdefs.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:37 +01:00
Martin Schwidefsky 52b169c864 [S390] cmm: free pages on hibernate.
The pages allocated by the cmm memory balloon should be freed before
the hibernation image is created. Otherwise the memory reserved by the
balloon gets written to the swap device but there is no content in
these pages that need to be preserved.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:37 +01:00
Martin Schwidefsky 39475179d4 [S390] Improve code generated by atomic operations.
Git commit ea43546750 changed the
definition of atomic_t and atomic64_t for s390 by adding the volatile
modifier to the counter field. This has an unfortunate side effect
with newer versions of the gcc. The typeof operator now picks up the
volatile modifier from the expression. This causes the compiler to
think that it has to store the two temporary variable old_val and
new_val in the __CS_LOOP for the different atomic operations to the
stack as the variables are now volatile. Both stores are superfluous.

The hack to replace typeof(ptr->counter) with int in __CS_LOOP and
and long long in __CSG_LOOP avoids the two stores. A better solution
would be to drop the volatile from the counter field of the atomic_t
and atomic64_t definition. But that is a touchy subject ..

Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:36 +01:00
Christian Borntraeger 779c27820a [S390] dasd: remove dead code
the todclk.h header file is dead code. Remove it.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:34 +01:00
Gerald Schaefer 6c1e3e7943 [S390] Use do_exception() in pagetable walk usercopy functions.
The pagetable walk usercopy functions have used a modified copy of the
do_exception() function for fault handling. This lead to inconsistencies
with recent changes to do_exception(), e.g. performance counters. This
patch changes the pagetable walk usercopy code to call do_exception()
directly, eliminating the redundancy. A new parameter is added to
do_exception() to specify the fault address.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:34 +01:00
Martin Schwidefsky 1ab947de29 [S390] fault handler access flags check.
Simplify the check of the vma->flags in do_exception for the
different fault types.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:34 +01:00
Martin Schwidefsky 50d7280d43 [S390] fault handler performance optimization.
Slim down the do_exception function to handle only the fast path of a
fault and move the exceptional cases into a new function. That slightly
increases the performance of the fault handling.

Build fix for !CONFIG_COMPAT by
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:33 +01:00
Martin Schwidefsky 7ecb344ae8 [S390] Improve notify_page_fault implementation.
notify_page_fault does a preempt_disable/preempt_enable for each
fault generated by a kernel access to user space. If kprobes
is not active that is unnecessary since the interrupts are not
reenabled yet. To play safe repeat the kprobe_running check after
preempt_disable().

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:33 +01:00
Martin Schwidefsky b11b533427 [S390] Improve address space mode selection.
Introduce user_mode to replace the two variables switch_amode and
s390_noexec. There are three valid combinations of the old values:
  1) switch_amode == 0 && s390_noexec == 0
  2) switch_amode == 1 && s390_noexec == 0
  3) switch_amode == 1 && s390_noexec == 1
They get replaced by
  1) user_mode == HOME_SPACE_MODE
  2) user_mode == PRIMARY_SPACE_MODE
  3) user_mode == SECONDARY_SPACE_MODE
The new kernel parameter user_mode=[primary,secondary,home] lets
you choose the address space mode the user space processes should
use. In addition the CONFIG_S390_SWITCH_AMODE config option
is removed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:33 +01:00
Martin Schwidefsky 61365e132e [S390] Improve address space check.
A data access in access-register mode always is a user mode access,
the code to inspect the access-registers can be removed. The second
change is to use a different test to check for no-execute fault.
The third change is to pass the translation exception identification
as parameter, in theory the trans_exc_code in the lowcore could have
been overwritten by the time the call to check_space from do_no_context
is done.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:33 +01:00
Peter Oberparleiter 454e1fa1eb [S390] cio: split PGID settings and status
Split setting (driver wants feature enabled) and status (feature
setup was successful) for PGID related ccw device features so that
setup errors can be detected. Previously, incorrectly handled setup
errors could in rare cases lead to erratic I/O behavior and
permanently unusuable devices.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:51:31 +01:00
Hendrik Brueckner cf87b7439e [S390] s390: clear high-order bits of registers after sam64
When the kernel is IPLed without the CLEAR option and switches
to 64-bit, the high-order half of the registers might contain
random values.  This can cause addressing exceptions and the
kernel enters an interrupt loop.

Initialize the high-order half of the general purpose registers
with zeros after switching to 64-bit mode.

Cc: <stable@kernel.org>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-12-07 12:45:10 +01:00
OGAWA Hirofumi cbe5c34c8c x86: Compile insn.c and inat.c only for KPROBES
At least, insn.c and inat.c is needed for kprobe for now. So,
this compile those only if KPROBES is enabled.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
LKML-Reference: <878wdg8icq.fsf@devron.myhome.or.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-07 08:31:28 +01:00
Russell King 3d14b5beba Merge branch 'sa1100' into devel 2009-12-06 17:00:33 +00:00
Russell King ba71e17269 Merge branch 'for-lak' of git://git.linuxtogo.org/home/thesing/collie into sa1100 2009-12-06 16:53:12 +00:00
Dmitry Artamonow 729fae44dd ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:58 +00:00
Dmitry Artamonow a53c876dc1 ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver
Many features of h3100/h3600 (LCD, PCMCIA, Flash write, etc.)
depend on correct functioning of GPIO expander handled by htc-egpio
driver, so force its building in Kconfig.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:58 +00:00
Dmitry Artamonow ebdb56409d ARM: 5825/1: SA1100: h3600: update defconfig
Update defconfig to current kernel, enable support for iPAQ H3100
and following drivers: gpio-keys, htc-egpio, ide_cs.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:57 +00:00
Dmitry Artamonow c463eb62ac ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys
Add support for "Power" and "Action" (joystick center) buttons -
the only buttons on iPaq h3100/h3600 connected to GPIOs
(other buttons are controlled by microcontroller)
Also remove setting PWER for wakeup on Power button press -
gpio-keys driver will handle it.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:57 +00:00
Dmitry Artamonow 4aa9755580 ARM: 5822/1: SA1100: h3100/h3600: clean up #includes
After a code reorganization and following split, there's some #includes
now unused. Clean them up and sort remaining alphabetticaly where possible.

Compile tested.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:57 +00:00
Dmitry Artamonow 6e23fcb3bd ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates
Correct boilerplates after files split. Also shorten them a bit - use
standart GPL wording (as per http://lkml.org/lkml/2007/5/1/220) and
drop changelog, which only entry about h3800 support and abstracted
EGPIOs is just confusing now, as both of these features are gone.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:56 +00:00
Dmitry Artamonow 86e5e38c46 ARM: 5820/1: SA1100: h3100/h3600: split h3600.c
Split common h3600.c into three separate files: h3100.c, h3600.c and
h3xxx.c (the latter contains common code for h3100/h3600)
Copyright boilerplates and #includes are copied intact and will be
cleaned up later.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:56 +00:00
Dmitry Artamonow 8715b29db2 ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h
Combine both headers into one, rename to h3xxx.h and change all
users accordingly.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:56 +00:00
Dmitry Artamonow 4c88a5c20f ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions
As all existing code was converted to gpiolib, drop no more
used pre-gpiolib (bit-shifted) GPIO definintions.
Supply new gpiolib-friendly definitions for GPIOs which
don't have them yet.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:56 +00:00
Dmitry Artamonow 51834901fa ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs
After conversion to gpiolib there's still some GPIOs left, that get
configured in *_mach_init() as outputs (using direct operations
on GPCR/GPDR registers), but otherwise unused. These GPIOs are mainly
sound related and should be configured by corresponding driver once
it is written.

Drop this initialisation and configure all GPIOs as input.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:55 +00:00
Dmitry Artamonow ca912b17c0 ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions
As all the remaining users of these definitions
(in pcmcia/sa1100_h3600 driver) were converted to gpio_to_irq(),
they can be safely removed.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:55 +00:00
Dmitry Artamonow 766f0378a7 ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers
As all users of assign_h3600_egpio now converted to gpiolib, we
can safely remove all assign_h3600_egpio handling code and
definitions.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:55 +00:00
Dmitry Artamonow 22f9740552 ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib
Use of gpio_request/gpio_free in some callbacks may look ugly, but
corresponding drivers (sa1100_serial and sa1100_fb) don't provide (yet)
init/exit hooks and registering these gpios in *_mach_init is also
not possible, because htc-gpio driver starts a bit later...

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:55 +00:00
Dmitry Artamonow 2eec62d7db ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver
It will be used for future conversion of assign_h3600_egpio calls to
gpiolib.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:55 +00:00
Dmitry Artamonow cf5a87d80a ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers
h3100 and h3600 have different sets of LCD-controlling gpios,
which mapped to the same "abstracted" EGPIO.
As we plan to get rid of those abstracted egpios completely, we
need to separate these helper functions.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:54 +00:00
Dmitry Artamonow d0e6041efd ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins
sa1100_fb driver handles this

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:26 +00:00
Dmitry Artamonow 382c14a52d ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h
PM_SUSPEND, PM_RESUME and machine_is_h3xxx() are not used anywhere in
kernel (checked with git grep), so it's safe to remove them.

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:25 +00:00
Dmitry Artamonow 2a151a0f12 ARM: 5796/1: SA1100: h3600: remove IRDA bits from serial PM callback
IRDA is handled by separate sa1100-ir driver and has
nothing to do with sa1100_serial

Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:25 +00:00
Dmitry Artamonow 1e23221e98 ARM: 5797/1: SA1100: h3100/h3600: remove dead links from Kconfig help text
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:25 +00:00
Dmitry Artamonow e55b20e81d ARM: 5795/1: SA1100: h3100/h3600: mark *_mach_init functions as __init
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:25 +00:00
Russell King 0fb85a5aa0 ARM: iPAQ: no need to set PWER_RTC
The rtc-sa1100 driver takes care of this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:25 +00:00
Russell King 6e21ee6aa7 ARM: iPAQ: move serial port support functions
No point calling sa1100_register_uart_fns early - these aren't
used until late in the boot sequence.  Also convert to gpiolib
support.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:24 +00:00
Russell King 9c196f0f8d ARM: iPAQ: convert H3100 IrDA to use generic gpio support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:24 +00:00
Russell King 0831e3e4cf ARM: iPAQ: provide a way to setup platform-controlled GPIOs
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:24 +00:00
Russell King a5d176a191 ARM: iPAQ: separate IrDA machine specifics
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:24 +00:00
Russell King 898e810ead ARM: h3600: provide each iPAQ machine type with own init function
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:24 +00:00
Russell King 7a5b4e16c8 ARM: sa11x0: convert set_xxx_data() to register_xxx()
Only register devices if we have platform data for those which require
platform data.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-06 16:52:23 +00:00
Jean Delvare 6dfa5ca3c9 i2c-powermac: Include the i2c_adapter in struct pmac_i2c_bus
Include the i2c_adapter in struct pmac_i2c_bus. This avoids memory
fragmentation and allows for several code cleanups.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Michel Daenzer <michel@daenzer.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-06 17:06:19 +01:00
Jean Delvare be2bf0a2df x86, perf probe: Fix warning in test_get_len()
Fix the following warning:

 arch/x86/tools/test_get_len.c: In function "main":
 arch/x86/tools/test_get_len.c:116: warning: unused variable "c"

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-06 12:53:40 +01:00
John Kacur 87fbaf6aea m68k: Remove the BKL from sys_execve
This seems like a copy-and-paste from code that no-longer needs the BKL
Just remove it.

Signed-off-by: John Kacur <jkacur@redhat.com>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-06 11:18:26 +01:00
Tim Abbott 7c5fd5619d m68k: Cleanup linker scripts using new linker script macros.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Tested-by: Andreas Schwab <schwab@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-06 11:18:25 +01:00
Tim Abbott 5cdef24b2a m68k: Make thread_info.h usable from assembly.
[Geert] <asm/thread_info_mm.h> pulls in <asm/current.h>, which contains C only.
So the include must be moved inside #ifndef __ASSEMBLY__.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-06 11:18:24 +01:00
Greg Ungerer f60a557267 m68knommu: define arch_has_single_step() and friends
Towards adding CONFIG_UTRACE support for non-mmu m68k add
arch_has_single_step, and its support functions user_enable_single_step()
and user_disable_single_step().
[Geert] m68k conflict resolution from linux-next

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-06 11:18:23 +01:00
Shaun Patterson 8055039c2a x86: Fix typo in arch/x86/mm/kmmio.c
Signed-off-by: Shaun Patterson <shaunpatterson@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: pq@iki.fi
LKML-Reference: <1260027694.10074.170.camel@linux-4lgc.site>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-06 09:23:40 +01:00
Frederic Weisbecker af2d8289f5 x86: Fixup wrong irq frame link in stacktraces
When we enter in irq, two things can happen to preserve the link
to the previous frame pointer:

- If we were in an irq already, we don't switch to the irq stack
  as we are inside. We just need to save the previous frame
  pointer and to link the new one to the previous.

- Otherwise we need another level of indirection. We enter the irq with
  the previous stack. We save the previous bp inside and make bp
  pointing to its saved address. Then we switch to the irq stack and
  push bp another time but to the new stack. This makes two levels to
  dereference instead of one.

In the second case, the current stacktrace code omits the second level
and loses the frame pointer accuracy. The stack that follows will then
be considered as unreliable.

Handling that makes the perf callchain happier.
Before:

43.94%  [k] _raw_read_lock
            |
            --- _read_lock
               |
               |--60.53%-- send_sigio
               |          __kill_fasync
               |          kill_fasync
               |          evdev_pass_event
               |          evdev_event
               |          input_pass_event
               |          input_handle_event
               |          input_event
               |          synaptics_process_byte
               |          psmouse_handle_byte
               |          psmouse_interrupt
               |          serio_interrupt
               |          i8042_interrupt
               |          handle_IRQ_event
               |          handle_edge_irq
               |          handle_irq
               |          __irqentry_text_start
               |          ret_from_intr
               |          |
               |          |--30.43%-- __select
               |          |
               |          |--17.39%-- 0x454f15
               |          |
               |          |--13.04%-- __read
               |          |
               |          |--13.04%-- vread_hpet
               |          |
               |          |--13.04%-- _xcb_lock_io
               |          |
               |           --13.04%-- 0x7f630878ce8

After:

    50.00%  [k] _raw_read_lock
            |
            --- _read_lock
               |
               |--98.97%-- send_sigio
               |          __kill_fasync
               |          kill_fasync
               |          evdev_pass_event
               |          evdev_event
               |          input_pass_event
               |          input_handle_event
               |          input_event
               |          |
               |          |--96.88%-- synaptics_process_byte
               |          |          psmouse_handle_byte
               |          |          psmouse_interrupt
               |          |          serio_interrupt
               |          |          i8042_interrupt
               |          |          handle_IRQ_event
               |          |          handle_edge_irq
               |          |          handle_irq
               |          |          __irqentry_text_start
               |          |          ret_from_intr
               |          |          |
               |          |          |--39.78%-- __const_udelay
               |          |          |          |
               |          |          |          |--91.89%-- ath5k_hw_register_timeout
               |          |          |          |          ath5k_hw_noise_floor_calibration
               |          |          |          |          ath5k_hw_reset
               |          |          |          |          ath5k_reset
               |          |          |          |          ath5k_config
               |          |          |          |          ieee80211_hw_config
               |          |          |          |          |
               |          |          |          |          |--88.24%-- ieee80211_scan_work
               |          |          |          |          |          worker_thread
               |          |          |          |          |          kthread
               |          |          |          |          |          child_rip
               |          |          |          |          |
               |          |          |          |           --11.76%-- ieee80211_scan_completed
               |          |          |          |                     ieee80211_scan_work
               |          |          |          |                     worker_thread
               |          |          |          |                     kthread
               |          |          |          |                     child_rip
               |          |          |          |
               |          |          |           --8.11%-- ath5k_hw_noise_floor_calibration
               |          |          |                     ath5k_hw_reset
               |          |          |                     ath5k_reset
               |          |          |                     ath5k_config

Note: This does not only affect perf events but also x86-64
stacktraces. They were considered as unreliable once we quit
the irq stack frame.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
2009-12-06 08:27:24 +01:00
Frederic Weisbecker b625b3b3b7 x86: Fixup wrong debug exception frame link in stacktraces
While dumping a stacktrace, the end of the exception stack won't link
the frame pointer to the previous stack.

The interrupted stack will then be considered as unreliable and ignored
by perf, as the frame pointer is unreliable itself.

This happens because we overwrite the frame pointer that links to the
interrupted frame with the address of the exception stack. This is
done in order to reserve space inside.
But rbp has been chosen here only because it is not a scratch register,
so that the address of the exception stack remains in rbp after calling
do_debug(), we can then release the exception stack space without the
need to retrieve its address again.

But we can pick another non-scratch register to do that, so that we
preserve the link to the interrupted stack frame in the stacktraces.

Just randomly choose r12. Every registers are saved just before and
restored just after calling do_debug(). And r12 is not used in the
middle, which makes it a perfect candidate.

Example: perf record -g -a -c 1 -f -e mem:$(tasklist_lock_addr):rw

Before:
    44.18%  [k] _raw_read_lock
            |
            |
            ---  |--6.31%-- waitid
                 |
                 |--4.26%-- writev
                 |
                 |--3.63%-- __select
                 |
                 |--3.15%-- __waitpid
                 |          |
                 |          |--28.57%-- 0x8b52e00000139f
                 |          |
                 |          |--28.57%-- 0x8b52e0000013c6
                 |          |
                 |          |--14.29%-- 0x7fde786dc000
                 |          |
                 |          |--14.29%-- 0x62696c2f7273752f
                 |          |
                 |           --14.29%-- 0x1ea9df800000000
                 |
                 |--3.00%-- __poll

After:

    43.94%  [k] _raw_read_lock
            |
            --- _read_lock
               |
               |--60.53%-- send_sigio
               |          __kill_fasync
               |          kill_fasync
               |          evdev_pass_event
               |          evdev_event
               |          input_pass_event
               |          input_handle_event
               |          input_event
               |          synaptics_process_byte
               |          psmouse_handle_byte
               |          psmouse_interrupt
               |          serio_interrupt
               |          i8042_interrupt
               |          handle_IRQ_event
               |          handle_edge_irq
               |          handle_irq
               |          __irqentry_text_start
               |          ret_from_intr
               |          |
               |          |--30.43%-- __select
               |          |
               |          |--17.39%-- 0x454f15
               |          |
               |          |--13.04%-- __read
               |          |
               |          |--13.04%-- vread_hpet
               |          |
               |          |--13.04%-- _xcb_lock_io
               |          |
               |           --13.04%-- 0x7f630878ce87

Note: it does not only affect perf events but also other stacktraces in
x86-64. They were considered as unreliable once we quit the debug
stack frame.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
2009-12-06 08:27:22 +01:00
Frederic Weisbecker 7f33f9c5cc x86/perf: Exclude the debug stack from the callchains
Dumping the callchains from breakpoint events with perf gives strange
results:

3.75%             perf  [kernel]           [k] _raw_read_unlock
                       |
                       --- _raw_read_unlock
                           perf_callchain
                           perf_prepare_sample
                           __perf_event_overflow
                           perf_swevent_overflow
                           perf_swevent_add
                           perf_bp_event
                           hw_breakpoint_exceptions_notify
                           notifier_call_chain
                           __atomic_notifier_call_chain
                           atomic_notifier_call_chain
                           notify_die
                           do_debug
                           debug
                           munmap

We are infected with all the debug stack. Like the nmi stack, the debug
stack is undesired as it is part of the profiling path, not helpful for
the user.

Ignore it.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-12-06 08:27:21 +01:00
Frederic Weisbecker b326e9560a hw-breakpoints: Use overflow handler instead of the event callback
struct perf_event::event callback was called when a breakpoint
triggers. But this is a rather opaque callback, pretty
tied-only to the breakpoint API and not really integrated into perf
as it triggers even when we don't overflow.

We prefer to use overflow_handler() as it fits into the perf events
rules, being called only when we overflow.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-12-06 08:27:18 +01:00
Frederic Weisbecker 2f0993e0fb hw-breakpoints: Drop callback and task parameters from modify helper
Drop the callback and task parameters from modify_user_hw_breakpoint().
For now we have no user that need to modify a breakpoint to the point
of changing its handler or its task context.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: "K. Prasad" <prasad@linux.vnet.ibm.com>
2009-12-06 08:27:17 +01:00
David S. Miller 7f5620a5fc sparc: Set UTS_MACHINE correctly.
"ARCH" can be just about anything, so we shouldn't end up
with UTS_MACHINE of "sparc" in a 64-bit kernel build just
because someone set the personality using 'sparc32' or
similar.  CONFIG_SPARC64 drives the compilation and
therefore provides the definitive value, not "ARCH".

This mirrors commit 8c6531f7a9
(x86: correctly set UTS_MACHINE for "make ARCH=x86")

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-05 17:17:55 -08:00
Linus Torvalds 6ec22f9b03 Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Limit number of per cpu TSC sync messages
  x86: dumpstack, 64-bit: Disable preemption when walking the IRQ/exception stacks
  x86: dumpstack: Clean up the x86_stack_ids[][] initalization and other details
  x86, cpu: mv display_cacheinfo -> cpu_detect_cache_sizes
  x86: Suppress stack overrun message for init_task
  x86: Fix cpu_devs[] initialization in early_cpu_init()
  x86: Remove CPU cache size output for non-Intel too
  x86: Minimise printk spew from per-vendor init code
  x86: Remove the CPU cache size printk's
  cpumask: Avoid cpumask_t in arch/x86/kernel/apic/nmi.c
  x86: Make sure we also print a Code: line for show_regs()
2009-12-05 15:33:27 -08:00
Linus Torvalds 83be7d764d Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, msr, cpumask: Use struct cpumask rather than the deprecated cpumask_t
  x86, cpuid: Simplify the code in cpuid_open
  x86, cpuid: Remove the bkl from cpuid_open()
  x86, msr: Remove the bkl from msr_open()
  x86: AMD Geode LX optimizations
  x86, msr: Unify rdmsr_on_cpus/wrmsr_on_cpus
2009-12-05 15:32:35 -08:00
Linus Torvalds c2ed69cdc9 Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix a section mismatch in arch/x86/kernel/setup.c
  x86: Fixup last users of irq_chip->typename
  x86: Remove BKL from apm_32
  x86: Remove BKL from microcode
  x86: use kernel_stack_pointer() in kprobes.c
  x86: use kernel_stack_pointer() in kgdb.c
  x86: use kernel_stack_pointer() in dumpstack.c
  x86: use kernel_stack_pointer() in process_32.c
2009-12-05 15:32:18 -08:00
Linus Torvalds ef26b1691d Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  include/linux/compiler-gcc4.h: Fix build bug - gcc-4.0.2 doesn't understand __builtin_object_size
  x86/alternatives: No need for alternatives-asm.h to re-invent stuff already in asm.h
  x86/alternatives: Check replacementlen <= instrlen at build time
  x86, 64-bit: Set data segments to null after switching to 64-bit mode
  x86: Clean up the loadsegment() macro
  x86: Optimize loadsegment()
  x86: Add missing might_fault() checks to copy_{to,from}_user()
  x86-64: __copy_from_user_inatomic() adjustments
  x86: Remove unused thread_return label from switch_to()
  x86, 64-bit: Fix bstep_iret jump
  x86: Don't use the strict copy checks when branch profiling is in use
  x86, 64-bit: Move K8 B step iret fixup to fault entry asm
  x86: Generate cmpxchg build failures
  x86: Add a Kconfig option to turn the copy_from_user warnings into errors
  x86: Turn the copy_from_user check into an (optional) compile time warning
  x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy
  x86: Use __builtin_object_size() to validate the buffer size for copy_from_user()
2009-12-05 15:32:03 -08:00
Linus Torvalds a77d2e081b Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits)
  x86, apic: Enable lapic nmi watchdog on AMD Family 11h
  x86: Remove unnecessary mdelay() from cpu_disable_common()
  x86, ioapic: Document another case when level irq is seen as an edge
  x86, ioapic: Fix the EOI register detection mechanism
  x86, io-apic: Move the effort of clearing remoteIRR explicitly before migrating the irq
  x86: SGI UV: Map low MMR ranges
  x86: apic: Print out SRAT table APIC id in hex
  x86: Re-get cfg_new in case reuse/move irq_desc
  x86: apic: Remove not needed #ifdef
  x86: io-apic: IO-APIC MMIO should not fail on resource insertion
  x86: Remove asm/apicnum.h
  x86: apic: Do not use stacked physid_mask_t
  x86, apic: Get rid of apicid_to_cpu_present assign on 64-bit
  x86, ioapic: Use snrpintf while set names for IO-APIC resourses
  x86, apic: Use PAGE_SIZE instead of numbers
  x86: Remove local_irq_enable()/local_irq_disable() in fixup_irqs()
  x86: Use EOI register in io-apic on intel platforms
  x86: Force irq complete move during cpu offline
  x86: Remove move_cleanup_count from irq_cfg
  x86, intr-remap: Avoid irq_chip mask/unmask in fixup_irqs() for intr-remapping
  ...
2009-12-05 15:31:25 -08:00
Linus Torvalds c3fa27d136 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (470 commits)
  x86: Fix comments of register/stack access functions
  perf tools: Replace %m with %a in sscanf
  hw-breakpoints: Keep track of user disabled breakpoints
  tracing/syscalls: Make syscall events print callbacks static
  tracing: Add DEFINE_EVENT(), DEFINE_SINGLE_EVENT() support to docbook
  perf: Don't free perf_mmap_data until work has been done
  perf_event: Fix compile error
  perf tools: Fix _GNU_SOURCE macro related strndup() build error
  trace_syscalls: Remove unused syscall_name_to_nr()
  trace_syscalls: Simplify syscall profile
  trace_syscalls: Remove duplicate init_enter_##sname()
  trace_syscalls: Add syscall_nr field to struct syscall_metadata
  trace_syscalls: Remove enter_id exit_id
  trace_syscalls: Set event_enter_##sname->data to its metadata
  trace_syscalls: Remove unused event_syscall_enter and event_syscall_exit
  perf_event: Initialize data.period in perf_swevent_hrtimer()
  perf probe: Simplify event naming
  perf probe: Add --list option for listing current probe events
  perf probe: Add argv_split() from lib/argv_split.c
  perf probe: Move probe event utility functions to probe-event.c
  ...
2009-12-05 15:30:21 -08:00
David S. Miller 28b4d5cc17 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/net/pcmcia/fmvj18x_cs.c
	drivers/net/pcmcia/nmclan_cs.c
	drivers/net/pcmcia/xirc2ps_cs.c
	drivers/net/wireless/ray_cs.c
2009-12-05 15:22:26 -08:00
Linus Torvalds 96fa2b508d Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (40 commits)
  tracing: Separate raw syscall from syscall tracer
  ring-buffer-benchmark: Add parameters to set produce/consumer priorities
  tracing, function tracer: Clean up strstrip() usage
  ring-buffer benchmark: Run producer/consumer threads at nice +19
  tracing: Remove the stale include/trace/power.h
  tracing: Only print objcopy version warning once from recordmcount
  tracing: Prevent build warning: 'ftrace_graph_buf' defined but not used
  ring-buffer: Move access to commit_page up into function used
  tracing: do not disable interrupts for trace_clock_local
  ring-buffer: Add multiple iterations between benchmark timestamps
  kprobes: Sanitize struct kretprobe_instance allocations
  tracing: Fix to use __always_unused attribute
  compiler: Introduce __always_unused
  tracing: Exit with error if a weak function is used in recordmcount.pl
  tracing: Move conditional into update_funcs() in recordmcount.pl
  tracing: Add regex for weak functions in recordmcount.pl
  tracing: Move mcount section search to front of loop in recordmcount.pl
  tracing: Fix objcopy revision check in recordmcount.pl
  tracing: Check absolute path of input file in recordmcount.pl
  tracing: Correct the check for number of arguments in recordmcount.pl
  ...
2009-12-05 09:53:36 -08:00
Linus Torvalds 3e72b810e3 Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mutex: Fix missing conditions to build mutex_spin_on_owner()
  mutex: Better control mutex adaptive spinning config
  locking, task_struct: Reduce size on TRACE_IRQFLAGS and 64bit
  locking: Use __[SPIN|RW]_LOCK_UNLOCKED in [spin|rw]_lock_init()
  locking: Remove unused prototype
  locking: Reduce ifdefs in kernel/spinlock.c
  locking: Make inlining decision Kconfig based
2009-12-05 09:49:59 -08:00
Linus Torvalds 7b626acb8f Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits)
  x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree
  x86/amd-iommu: Remove amd_iommu_pd_table
  x86/amd-iommu: Move reset_iommu_command_buffer out of locked code
  x86/amd-iommu: Cleanup DTE flushing code
  x86/amd-iommu: Introduce iommu_flush_device() function
  x86/amd-iommu: Cleanup attach/detach_device code
  x86/amd-iommu: Keep devices per domain in a list
  x86/amd-iommu: Add device bind reference counting
  x86/amd-iommu: Use dev->arch->iommu to store iommu related information
  x86/amd-iommu: Remove support for domain sharing
  x86/amd-iommu: Rearrange dma_ops related functions
  x86/amd-iommu: Move some pte allocation functions in the right section
  x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc
  x86/amd-iommu: Use get_device_id and check_device where appropriate
  x86/amd-iommu: Move find_protection_domain to helper functions
  x86/amd-iommu: Simplify get_device_resources()
  x86/amd-iommu: Let domain_for_device handle aliases
  x86/amd-iommu: Remove iommu specific handling from dma_ops path
  x86/amd-iommu: Remove iommu parameter from __(un)map_single
  x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs
  ...
2009-12-05 09:49:07 -08:00
David Daney 27d16d0871 avr32: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney 5506e68975 s390: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: linux390@de.ibm.com
CC: linux-s390@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney 4ef5651e85 MIPS: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of while(1);

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
David Daney a5fc5eba4d x86: Convert BUG() to use unreachable()
Use the new unreachable() macro instead of for(;;);.  When
allyesconfig is built with a GCC-4.5 snapshot on i686 the size of the
text segment is reduced by 3987 bytes (from 6827019 to 6823032).

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: x86@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-05 09:10:12 -08:00
Krzysztof Hałasa 0fd7dc7f6c IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:41 +01:00
Krzysztof Hałasa 8d3fdf31dd IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:41 +01:00
Krzysztof Hałasa a8b7b34075 IXP4xx: move Gemtek GTWX5715 platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:40 +01:00
Krzysztof Hałasa 31bcde3785 IXP4xx: Remove unused Motorola PrPMC1100 platform macros.
PrPMC1100 is handled by IXDP425 platform code, there is no need for
duplicate set of macros. Remove them.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:40 +01:00
Krzysztof Hałasa 914e7bc28e IXP4xx: move FSG platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:40 +01:00
Krzysztof Hałasa 395e71276c IXP4xx: move DSM G600 platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:40 +01:00
Krzysztof Hałasa 23fa6846a2 IXP4xx: move NAS100D platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa c1117c63d5 IXP4xx: move NSLU2 platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa f89f44902a IXP4xx: move Coyote platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa ec66969685 IXP4xx: move AVILA platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa 9bf4d67689 IXP4xx: move IXDP425 platform macros to the platform code.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa ed5b9fa0d1 IXP4xx: Extend PCI MMIO indirect address space to 1 GB.
IXP4xx CPUs can indirectly access the whole 4 GB PCI MMIO address space (using
the non-prefetch registers). Previously the available space depended on the CPU
variant, since one of the IXP43x platforms needed more than the usual 128 MB.
1 GB should be enough for everyone, and if not, we can trivially increase it.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa cba362221b IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI.
Instead of including the heavy linux/mm.h for VMALLOC_START, test the addresses
against PCI MIN and MAX addresses. Indirect PCI uses 1:1 mapping for MMIO space
making this change possible.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa 58e570d118 IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for clarity.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:39 +01:00
Krzysztof Hałasa 28f85cd3f6 IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:38 +01:00
Roel Kluin efec194f57 IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request().
The indexes were signed, so negatives were possible.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:38 +01:00
Krzysztof Hałasa 9f2c94928a ARM: fix insl() and outsl() endianness on IXP4xx architecture.
The repetitive in/out functions must preserve order, not value.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:38 +01:00
Krzysztof Hałasa 6e30de84ab IXP4xx: change the timer base frequency to 66.666000 MHz.
Clock generators used by IXP4xx processors are usually 33.333 MHz, sometimes
33.33 MHz and few platforms use 33 MHz. The timers tick twice as fast,
that means 66.666, 66.66 or 66 MHz. Current 66.666666 MHz means 10 ppm
offset from the usual 66.666 MHz.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-12-05 16:58:37 +01:00
Russell King 0719dc3413 Merge branch 'devel-stable' into devel 2009-12-05 10:35:33 +00:00
Russell King e28edb723e Merge branches 'at91', 'ep93xx', 'etm', 'ks8695', 'nuc', 'u300' and 'u8500' into devel 2009-12-05 10:35:18 +00:00
Leann Ogasawara 4832ddda2e x86: ASUS P4S800 reboot=bios quirk
Bug reporter noted their system with an ASUS P4S800 motherboard would
hang when rebooting unless reboot=b was specified.  Their dmidecode
didn't contain descriptive System Information for Manufacturer or
Product Name, so I used their Base Board Information to create a
reboot quirk patch.  The bug reporter confirmed this patch resolves
the reboot hang.

Handle 0x0001, DMI type 1, 25 bytes
System Information
       Manufacturer: System Manufacturer
       Product Name: System Name
       Version: System Version
       Serial Number: SYS-1234567890
       UUID: E0BFCD8B-7948-D911-A953-E486B4EEB67F
       Wake-up Type: Power Switch

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
     Manufacturer: ASUSTeK Computer INC.
     Product Name: P4S800
     Version: REV 1.xx
     Serial Number: xxxxxxxxxxx

BugLink: http://bugs.launchpad.net/bugs/366682

ASUS P4S800 will hang when rebooting unless reboot=b is specified.
Add a quirk to reboot through the bios.

Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com>
LKML-Reference: <1259972107.4629.275.camel@emiko>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org>
2009-12-04 16:38:59 -08:00
Chris Wright 5d990b6275 PCI: add pci_request_acs
Commit ae21ee65e8 "PCI: acs p2p upsteram
forwarding enabling" doesn't actually enable ACS.

Add a function to pci core to allow an IOMMU to request that ACS
be enabled.  The existing mechanism of using iommu_found() in the pci
core to know when ACS should be enabled doesn't actually work due to
initialization order;  iommu has only been detected not initialized.

Have Intel and AMD IOMMUs request ACS, and Xen does as well during early
init of dom0.

Cc: Allen Kay <allen.m.kay@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-12-04 16:19:24 -08:00
Yinghai Lu 575939cf54 x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource
This allows us to use the BIOS SR-IOV allocations rather than assigning
our own later on.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-12-04 16:00:17 -08:00
Adam Buchbinder 6070d81eb5 tree-wide: fix misspelling of "definition" in comments
"Definition" is misspelled "defintion" in several comments; this
patch fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 23:41:47 +01:00
Andreas Schwab f195e2bff3 m68k: ptrace fixes
This fixes the following issues in ptrace:

- when single stepping into the signal handler stop at the first insn of
  the handler
- handle non-zero stkadj when accessing pc and sr in ptregs
- correctly handle PT_SR in PTRACE_POKEUSR
- report -EIO when trying to read unknown offset in PTRACE_PEEKUSR

Additionally, the handling of the special case that PT_SR accesses a 16
bit word instead of a 32 bit word has been moved into get_reg/put_reg.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-04 21:22:35 +01:00
Andreas Schwab faa47b4669 m68k: use generic code for ptrace requests
Remove all but PTRACE_{PEEK,POKE}USR and PTRACE_{GET,SET}{REGS,FPREGS}
from arch_ptrace and let the rest be handled by generic code.  Define
PTRACE_SINGLEBLOCK to enable singleblock tracing.
[Geert] Not yet applicable for m68knommu

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-04 21:22:35 +01:00
Russell King 677f4f64e4 Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel-stable 2009-12-04 17:34:50 +00:00
Russell King 4567c4a896 Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel-stable 2009-12-04 17:34:16 +00:00
Russell King 602fd7c367 Merge branch 'for-rmk' of git://git.fluff.org/bjdooks/linux into devel-stable
Conflicts:
	arch/arm/Kconfig
2009-12-04 17:33:54 +00:00
Takashi Iwai baf9226667 Merge branch 'topic/asoc' into for-linus 2009-12-04 16:22:41 +01:00
Russell King 2fc42814d8 Merge branch 'pending-dma-streaming' (early part) into devel 2009-12-04 15:00:11 +00:00
Russell King c6baa1963c Merge branch 'pending-dma-coherent' into devel 2009-12-04 15:00:00 +00:00
Russell King 5cb2faa6ed Merge branch 'pending-misc' (early part) into devel 2009-12-04 14:59:47 +00:00
Russell King 6060e8df51 ARM: I-cache: flush executable mappings in flush_cache_range()
Dirk Behme reported instability on ARM11 SMP (VIPT non-aliasing cache)
caused by the dynamic linker changing protection on text pages to write
GOT entries.  The problem is due to an interaction between the write
faulting code providing new anonymous pages which are incoherent with
the I-cache due to write buffering, and the I-cache not having been
invalidated.

a4db94d plugs the hole with the data cache coherency.  This patch
provides the other half of the fix by flushing the I-cache in
flush_cache_range() for VM_EXEC VMAs (which is what we have when the
region is being made executable again.)  This ensures that the I-cache
will be up to date with the newly COW'd pages.

Note: if users are writing instructions, then they still need to use
the ARM sys_cacheflush API to ensure that the caches are correctly
synchronized.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:51 +00:00
Russell King ea201dbb78 ARM: I-cache: avoid flushing in flush_cache_mm()
flush_cache_mm() is called in two cases:
1. when a process exits, just before the page tables are torn down.
   We can allow the stale lines to evict themselves over time without
   causing any harm.

2. when a process forks, and we've allocated a new ASID.
   The instruction cache issues are dealt with as pages are brought
   into the new process address space.  Flushing the I-cache here is
   therefore unnecessary.

However, we must keep the VIPT aliasing D-cache flush to ensure that
any dirty cache lines are not written back after the pages have been
reallocated for some other use - which would result in corruption.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:51 +00:00
Russell King 9e95922b10 ARM: I-cache: Add invalidation for VIVT ASID tagged caches
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:51 +00:00
Catalin Marinas 115b22474e ARM: 5794/1: Flush the D-cache during copy_user_highpage()
The I and D caches for copy-on-write pages on processors with
write-allocate caches become incoherent causing problems on application
relying on CoW for text pages (dynamic linker relocating symbols in a
text page). This patch flushes the D-cache for such pages.

Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:50 +00:00
Russell King f91fb05d82 ARM: Remove __flush_icache_all() from __flush_dcache_page()
Both call sites for __flush_dcache_page() end up calling
__flush_icache_all() themselves, so having __flush_dcache_page() do
this as well is wasteful.  Remove the duplicated icache flushing.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:50 +00:00
Russell King 2df341edf6 ARM: Move __flush_icache_all() out of flush_pfn_alias()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:50 +00:00
Russell King 7b0a1003e7 ARM: Reduce __flush_dcache_page() visibility
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-04 14:58:50 +00:00
André Goddard Rosa af901ca181 tree-wide: fix assorted typos all over the place
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:55 +01:00
Robert Schwebel fedea672a3 mx31moboard: fix typo
Currently, linux-next breaks due to a typo introduced in commit
33c4d91928

This patch fixes it.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Cc: Valentin Longchamp <valentin.longchamp@epfl.ch>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-12-04 13:23:41 +01:00
Curtis Wald 06a5bad898 powerpc/44x: Fix PCI node in Yosemite DTS
The stanza for PCI was copied from Bamboo which has four PCI slots.  Yosemite
only has one PCI slot which is mapped to IDSEL 12, ADDR 22, IRQ2 Vector 25,
INTA.

Signed-off-by: Curtis Wald <cwald@watchguardvideo.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-12-04 07:10:26 -05:00
pbathija@amcc.com 2e991cfa9b powerpc/44x: Fix DMA ranges in DTS file for Katmai board.
Set PCI-E node inbound DMA ranges size to 4GB for correct boot up of Katmai.

Signed-off-by: Pravin Bathija <pbathija@amcc.com>
Acked-by: Feng Kan <fkan@amcc.com>
Acked-by: Prodyut Hazarika <phazarika@amcc.com>
Acked-by: Loc Ho <lho@amcc.com>
Acked-by: Tirumala Reddy Marri <tmarri@amcc.com>
Acked-by: Victor Gallardo <vgallardo@amcc.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-12-04 07:01:54 -05:00
Mark Brown 43f0de8d02 S3C64XX: Staticise platform data for PCM devices
The symbols aren't declared and don't need to be exported, they go
along with the device structure.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
2009-12-04 10:46:08 +00:00
Magnus Damm 6a5a0b9139 sh: include empty zero page in romImage
This patch updates the romImage code to include the
empty_zero_page contents from vmlinux. Without this
patch the empty zero page is lef uninitialized.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:26:20 +09:00
Paul Mundt 6e8a0d11a0 sh: Make associative cache writes fatal on all SH-4A parts.
Now that associative cache writes are no longer needed by the SH-4/SH-4A
cache flush code, associative write support can be explicitly disabled
for all SH-4A parts. This makes any associative write throw an exception,
as this behaviour can not be assumed to exist on future parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:22:11 +09:00
Matt Fleming a781d1e5ff sh: Drop associative writes for SH-4 cache flushes.
When flushing/invalidating the icache/dcache via the memory-mapped IC/OC
address arrays, the associative bit should only be used in conjunction with
virtual addresses. However, we currently flush cache lines based on physical
address, so stop using the associative bit.

It is a better strategy to use non-associative writes (and physical tags) for
flushing the caches anyway, because flushing by virtual address (as with the
A-bit set) requires a valid TLB entry for that virtual address. If one does not
exist in the TLB no exception is generated and the flush is silently ignored.

This is also future-proofing for SH-4A parts which are gradually phasing out
associative writes to the cache array due to the aforementioned case of certain
flushes silently turning in to nops.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:18:11 +09:00
Paul Mundt 7e01c94998 sh: Partial revert of copy/clear_user_highpage() optimizations.
These still require more testing, so revert them for now. We keep the
off-by-1 in the fixmap colouring and drop the rest.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 15:14:52 +09:00
Paul Mundt 8144a7dd51 sh: Add default uImage rule for se7724, ap325rxa, and migor.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:57:40 +09:00
Magnus Damm a65d0d79c4 sh: allow runtime pm without suspend/resume callbacks
This patch updates the Runtime PM code for SuperH Mobile
to allow drivers to have NULL as pm or callback value.
With this in place there is no need for no-op functions.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:37 +09:00
Kuninori Morimoto 1c2e36cc9b sh: mach-ecovec24: Remove un-defined settings for VPU
The setting of VPU need not be changed from default.
And current setting value is not defined on SH7724

Reported-by:   Goda Yusuke <goda.yusuke@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:34 +09:00
Kuninori Morimoto 82b3322178 sh: mach-ecovec24: LCDC drive ability become high
Drive ability for LCDC become high for safety,
became there is strange individual specificity board in mass production

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:32 +09:00
Magnus Damm 7e213481d6 sh: fix sh7724 VEU3F resource size
Fix one-off VEU3F size error for sh7724.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:29 +09:00
Steven King 96c612427e m68knommu: export clk_* symbols in clk.c
export the clk_*  stubs defined in arch/m68knommu/platform/coldfire/clk.c so
they can be used by modules.

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@goober.(none)>
2009-12-04 11:45:32 +10:00
Tim Abbott 53749f735a m68knommu: Split the .init section into INIT_TEXT_SECTION and INIT_DATA_SECTION.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:32 +10:00
Tim Abbott 995bcd3dc1 m68knommu: Move __init_end out of the .init section.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:32 +10:00
Tim Abbott a90a44ee90 m68knommu: Move __init_begin out of the .init section.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:32 +10:00
Tim Abbott 84bd757155 m68knommu: Use more macros inside the .init section.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:31 +10:00
Tim Abbott 49612a5fa5 m68knommu: Use INIT_TASK_DATA and CACHELINE_ALIGNED_DATA.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:31 +10:00
Tim Abbott d6cd1f0c38 m68knommu: Make THREAD_SIZE available to assembly files.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:31 +10:00
Tim Abbott f4bed4fb17 m68knommu: Don't hardcode the value of PAGE_SIZE in the linker script.
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:31 +10:00
Greg Ungerer 10f204e5ad m68knommu: rename BSS define in linker script
The "BSS" define name now used in asm-generic/vmlinux.lds.h
(introduced in commit ef53dae865)
clashes with the internal "BSS" define in the m68knommu vmlinux.lds.S
linker script. So rename it.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:31 +10:00
Greg Ungerer c23b6538d0 m68knommu: add a task_pt_regs() macro
Add a task_pt_regs() macro as per the CONFIG_UTRACE requirements.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:30 +10:00
Greg Ungerer 193f087d49 m68knommu: define arch_has_single_step() and friends
Towards adding CONFIG_UTRACE support for non-mmu m68k add
arch_has_single_step, and its support functions user_enable_single_step()
and user_disable_single_step().

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:30 +10:00
Lennart Sorensen 588baeac38 m68knommu: add uboot commandline argument passing support
This patch adds m68knommu support for getting the kernel command line
arguments from uboot, including the passing of an initrd image from uboot.

We use this on a 5270/5271 based board, and have used it on the 5271evb
development board.  It is based on a patch found in the linux-2.6-denx
git tree, although that tree seems to have had lots of other changes
since which are not in the main Linus kernel.  I believe this will work
on all coldfires, although other m68knommu might be missing the _init_sp
stuff in head.S as far as I can tell.  I only have the coldfire to
test on.

Signed-off-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:30 +10:00
Steven King b0d22d66fd m68knommu: Coldfire GPIO corrections
Pin 0 of the EPORT is not connected on the 523x, 5271, 5275 and 528x and the
TIMER on the 523x has 8 pins, not 4.

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-12-04 11:45:30 +10:00
Mark Brown 88d27041cf ARM: S3C6410: Correct names of IISv4 data output pin definitions
The naming of the defines suggests that there are three IISv4 ports
with one data line each when in fact there is a single IISv4 port
with three data lines.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-03 21:58:10 +00:00
Ben Dooks 009f742bde ARM: Merge next-s3c64xx-updates
Merge branch 'next-s3c64xx-updates' into for-rmk

Conflicts:

	arch/arm/plat-s3c/dev-hsmmc2.c
	arch/arm/plat-s3c/include/plat/sdhci.h
2009-12-03 21:53:10 +00:00
Ben Dooks f18ea8276b ARM: Merge next-s3c24xx-dev-rtp
Merge branch 'next-s3c24xx-dev-rtp' into for-rmk

Conflicts:

	arch/arm/mach-s3c2440/mach-anubis.c
2009-12-03 21:33:01 +00:00
Ben Dooks 3d4db84cee ARM: Merge next-s3c24xx-simtec
Merge branch 'next-s3c24xx-simtec' into for-rmk
2009-12-03 21:31:20 +00:00
Srinidhi Kasagar 48371cd3f4 ARM: 5845/1: l2x0: check whether l2x0 already enabled
If running in non-secure mode accessing
some registers of l2x0 will fault. So
check if l2x0 is already enabled, if so
do not access those secure registers.

Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-03 19:42:30 +00:00
Leo Chen 1f739d7643 ARM: 5792/1: bcmring: clean up mach/io.h
removed old macro definition for io access, using
the generic macros defined in asm/io.h

Signed-off-by: Leo Hao Chen <leochen@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-03 19:42:30 +00:00
Ian Campbell f6eafe3665 xen: call clock resume notifier on all CPUs
tick_resume() is never called on secondary processors. Presumably this
is because they are offlined for suspend on native and so this is
normally taken care of in the CPU onlining path. Under Xen we keep all
CPUs online over a suspend.

This patch papers over the issue for me but I will investigate a more
generic, less hacky, way of doing to the same.

tick_suspend is also only called on the boot CPU which I presume should
be fixed too.

Signed-off-by: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
2009-12-03 11:14:55 -08:00
Jeremy Fitzhardinge 6aaf5d633b xen: use iret for return from 64b kernel to 32b usermode
If Xen wants to return to a 32b usermode with sysret it must use the
right form.  When using VCGF_in_syscall to trigger this, it looks at
the code segment and does a 32b sysret if it is FLAT_USER_CS32.
However, this is different from __USER32_CS, so it fails to return
properly if we use the normal Linux segment.

So avoid the whole mess by dropping VCGF_in_syscall and simply use
plain iret to return to usermode.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Jan Beulich <jbeulich@novell.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:54 -08:00
Jeremy Fitzhardinge 499d19b82b xen: register runstate info for boot CPU early
printk timestamping uses sched_clock, which in turn relies on runstate
info under Xen.  So make sure we set it up before any printks can
be called.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:53 -08:00
Ian Campbell 028896721a xen: register runstate on secondary CPUs
The commit "xen: re-register runstate area earlier on resume" caused us
to never try and setup the runstate area for secondary CPUs. Ensure that
we do this...

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:52 -08:00
Ian Campbell f350c7922f xen: register timer interrupt with IRQF_TIMER
Otherwise the timer is disabled by dpm_suspend_noirq() which in turn prevents
correct operation of stop_machine on multi-processor systems and breaks
suspend.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:52 -08:00
Ian Campbell fa24ba62ea xen: correctly restore pfn_to_mfn_list_list after resume
pvops kernels >= 2.6.30 can currently only be saved and restored once. The
second attempt to save results in:

    ERROR Internal error: Frame# in pfn-to-mfn frame list is not in pseudophys
    ERROR Internal error: entry 0: p2m_frame_list[0] is 0xf2c2c2c2, max 0x120000
    ERROR Internal error: Failed to map/save the p2m frame list

I finally narrowed it down to:

    commit cdaead6b4e
        Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
        Date:   Fri Feb 27 15:34:59 2009 -0800

            xen: split construction of p2m mfn tables from registration

            Build the p2m_mfn_list_list early with the rest of the p2m table, but
            register it later when the real shared_info structure is in place.

            Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

The unforeseen side-effect of this change was to cause the mfn list list to not
be rebuilt on resume. Prior to this change it would have been rebuilt via
xen_post_suspend() -> xen_setup_shared_info() -> xen_setup_mfn_list_list().

Fix by explicitly calling xen_build_mfn_list_list() from xen_post_suspend().

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:51 -08:00
Jeremy Fitzhardinge 3905bb2aa7 xen: restore runstate_info even if !have_vcpu_info_placement
Even if have_vcpu_info_placement is not set, we still need to set up
the runstate area on each resumed vcpu.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:51 -08:00
Ian Campbell be012920ec xen: re-register runstate area earlier on resume.
This is necessary to ensure the runstate area is available to
xen_sched_clock before any calls to printk which will require it in
order to provide a timestamp.

I chose to pull the xen_setup_runstate_info out of xen_time_init into
the caller in order to maintain parity with calling
xen_setup_runstate_info separately from calling xen_time_resume.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
2009-12-03 11:14:50 -08:00
Ingo Molnar d103d01e4b Merge branch 'perf/probes' into perf/core
Merge reason: add these fixes to 'perf probe'.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-03 20:11:38 +01:00
Ingo Molnar 26fb20d008 Merge branch 'perf/mce' into perf/core
Merge reason: It's ready for v2.6.33.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-03 20:11:06 +01:00
Mikael Pettersson 7d1849aff6 x86, apic: Enable lapic nmi watchdog on AMD Family 11h
The x86 lapic nmi watchdog does not recognize AMD Family 11h,
resulting in:

  NMI watchdog: CPU not supported

As far as I can see from available documentation (the BKDM),
family 11h looks identical to family 10h as far as the PMU
is concerned.

Extending the check to accept family 11h results in:

  Testing NMI watchdog ... OK.

I've been running with this change on a Turion X2 Ultra ZM-82
laptop for a couple of weeks now without problems.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: <stable@kernel.org>
LKML-Reference: <19223.53436.931768.278021@pilspetsen.it.uu.se>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-03 16:25:15 +01:00
Jens Axboe 220d0b1dbf Merge branch 'master' into for-2.6.33 2009-12-03 13:49:39 +01:00
Xiaotian Feng 57fea8f7ab x86/reboot: Add pci_dev_put in reboot_fixup_32.c for consistency
pci_get_device will increase the ref count of found device.
Although we're going to reset soon, we should use pci_dev_put
to decrease the ref count for consistency.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1259838400-23833-1-git-send-email-dfeng@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-03 12:17:55 +01:00