GitHub/exynos8895/android_kernel_samsung_universal8895.git
13 years agomsm: Clean up useless ifdefs
Stepan Moskovchenko [Thu, 27 Jan 2011 20:13:22 +0000 (12:13 -0800)]
msm: Clean up useless ifdefs

Remove ifdefs that do nothing, either from having the code
between them previously removed, or from having been
accidentally added to the wrong file.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: clock: Add support for more proc_comm clocks
Stephen Boyd [Thu, 27 Jan 2011 00:20:56 +0000 (16:20 -0800)]
msm: clock: Add support for more proc_comm clocks

Add support for the ce, codec_ssbi, uart clocks, and i2c clocks.

Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: clock: Invert debugfs directory layout
Stephen Boyd [Thu, 27 Jan 2011 00:20:55 +0000 (16:20 -0800)]
msm: clock: Invert debugfs directory layout

There are currently 3 separate directories for clock debugging in
debugfs: clk_enable, clk_rate, and clk_local. Each of these
directories contains a list of clocks. This is rather annoying
when you are focusing on one clock and want to enable/disable it
and then check its rate. You either have to cd to the other
directory or cat ../clk_rate/<clk>.

Invert the layout so that there is one clock directory containing
a directory for each clock. Inside each respective clock
directory place an enable, rate, and is_local file relating to
the clk_enable, clk_disable, and clk_local directories that exist
today.

Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: clock: Move debugfs code from clock.c to clock-debug.c
Matt Wagantall [Thu, 27 Jan 2011 00:20:54 +0000 (16:20 -0800)]
msm: clock: Move debugfs code from clock.c to clock-debug.c

The clock debugfs code is large enough, and easy enough to separate,
that it deserves its own file which is compiled only when
CONFIG_DEBUG_FS is enabled.

Also, cleanup header file #includes that are no longer required.

Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: clock: Remove 7x30 and pcom includes from clock.h
Stephen Boyd [Thu, 27 Jan 2011 00:20:53 +0000 (16:20 -0800)]
msm: clock: Remove 7x30 and pcom includes from clock.h

clock.h includes clock-pcom.h and clock-7x30.h when it really
doesn't need to. Remove the includes and fixup breakages.

Reviewed-By: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: clock: Remove unused code and definitions
Stephen Boyd [Thu, 27 Jan 2011 00:20:52 +0000 (16:20 -0800)]
msm: clock: Remove unused code and definitions

This code is dead or otherwise useless so just remove it.

Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Warning fix in trout gpio board file
David Brown [Thu, 27 Jan 2011 00:14:24 +0000 (16:14 -0800)]
msm: Warning fix in trout gpio board file

arch/arm/mach-msm/board-trout-gpio.c: In function 'trout_gpio_to_irq':
arch/arm/mach-msm/board-trout-gpio.c:77: error: unused variable 'msm_gpio'

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Remove broken register definition from trout
David Brown [Thu, 27 Jan 2011 00:14:23 +0000 (16:14 -0800)]
msm: Remove broken register definition from trout

Missed a register change with the clock cleanup on the MSM7x01 targets.

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agoMerge branch 'msm-8960' into msm-core
David Brown [Wed, 26 Jan 2011 21:29:22 +0000 (13:29 -0800)]
Merge branch 'msm-8960' into msm-core

* msm-8960:
  msm: Support for the MSM8960 RUMI3 target
  msm: Support for the MSM8960 Simulator target
  msm: Makefile cleanup
  msm: timer: Timer support for MSM8960
  msm: Add MSM 8960 cpu_is check
  msm: irqs-8960: Interrupt map for MSM8960
  msm: Physical offset for MSM8960
  msm: io: I/O register definitions for MSM8960
  msm: Generalize QGIC registers
  msm: Generalize timer register mappings
  msm: Add CPU queries

13 years agoARM: msm: 7x30: don't force a gpiomux table for the whole arch
Dima Zavin [Mon, 10 Jan 2011 19:00:30 +0000 (11:00 -0800)]
ARM: msm: 7x30: don't force a gpiomux table for the whole arch

This is completely board specific and therefore must be provided
on a per-board basis.

Signed-off-by: Dima Zavin <dima@android.com>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agoLinux 2.6.38-rc2
Linus Torvalds [Sat, 22 Jan 2011 03:01:34 +0000 (19:01 -0800)]
Linux 2.6.38-rc2

13 years agoMerge branch 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Sat, 22 Jan 2011 00:50:31 +0000 (16:50 -0800)]
Merge branch 'media_fixes' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (101 commits)
  [media] staging/lirc: fix mem leaks and ptr err usage
  [media] hdpvr: reduce latency of i2c read/write w/recycled buffer
  [media] hdpvr: enable IR part
  [media] rc/mceusb: timeout should be in ns, not us
  [media] v4l2-device: fix 'use-after-freed' oops
  [media] v4l2-dev: don't memset video_device.dev
  [media] zoran: use video_device_alloc instead of kmalloc
  [media] w9966: zero device state after a detach
  [media] v4l: Fix a use-before-set in the control framework
  [media] v4l: Include linux/videodev2.h in media/v4l2-ctrls.h
  [media] DocBook/v4l: update V4L2 revision and update copyright years
  [media] DocBook/v4l: fix validation error in dev-rds.xml
  [media] v4l2-ctrls: queryctrl shouldn't attempt to replace V4L2_CID_PRIVATE_BASE IDs
  [media] v4l2-ctrls: fix missing 'read-only' check
  [media] pvrusb2: Provide more information about IR units to lirc_zilog and ir-kbd-i2c
  [media] ir-kbd-i2c: Add back defaults setting for Zilog Z8's at addr 0x71
  [media] lirc_zilog: Update TODO.lirc_zilog
  [media] lirc_zilog: Add Andy Walls to copyright notice and authors list
  [media] lirc_zilog: Remove useless struct i2c_driver.command function
  [media] lirc_zilog: Remove unneeded tests for existence of the IR Tx function
  ...

13 years agomsm: Support for the MSM8960 RUMI3 target
Stepan Moskovchenko [Tue, 14 Dec 2010 02:12:19 +0000 (18:12 -0800)]
msm: Support for the MSM8960 RUMI3 target

Add the machine record, init code, and build support for
the MSM8960 RUMI3.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Support for the MSM8960 Simulator target
Stepan Moskovchenko [Thu, 2 Dec 2010 03:31:16 +0000 (19:31 -0800)]
msm: Support for the MSM8960 Simulator target

Add the board file, Kconfig options, and Makefile options
needed to build for the MSM8960 Simulator target.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Makefile cleanup
Stepan Moskovchenko [Fri, 10 Dec 2010 03:16:13 +0000 (19:16 -0800)]
msm: Makefile cleanup

Clean up some of the conditionals in the Makefile in
preparation for adding build support for MSM8960.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: timer: Timer support for MSM8960
Stepan Moskovchenko [Thu, 2 Dec 2010 03:25:14 +0000 (19:25 -0800)]
msm: timer: Timer support for MSM8960

Modify the macros in the MSM timer driver to support the
MSM8960 chip.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Add MSM 8960 cpu_is check
David Brown [Wed, 12 Jan 2011 20:55:16 +0000 (12:55 -0800)]
msm: Add MSM 8960 cpu_is check

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: irqs-8960: Interrupt map for MSM8960
Stepan Moskovchenko [Thu, 2 Dec 2010 03:30:35 +0000 (19:30 -0800)]
msm: irqs-8960: Interrupt map for MSM8960

Add the interrupt map for the Qualcomm MSM8960 chip. This
chip has an interrupt map that is different from previous
targets.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Physical offset for MSM8960
Stepan Moskovchenko [Thu, 2 Dec 2010 04:06:26 +0000 (20:06 -0800)]
msm: Physical offset for MSM8960

Add the physical memory offset value for the Qualcomm
MSM8960 chip.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: io: I/O register definitions for MSM8960
Stepan Moskovchenko [Thu, 2 Dec 2010 03:05:49 +0000 (19:05 -0800)]
msm: io: I/O register definitions for MSM8960

Add the register address definitions for the basic hardware
blocks on the Qualcomm MSM8960 chip.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Generalize QGIC registers
David Brown [Tue, 4 Jan 2011 19:02:59 +0000 (11:02 -0800)]
msm: Generalize QGIC registers

The QGIC registers are mapped to the same virtual addresses across
targets, only the physical address changes.  Move the BASE address out
of target-specific files, and add a SOC name to the base addresses.

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Generalize timer register mappings
David Brown [Fri, 7 Jan 2011 18:20:49 +0000 (10:20 -0800)]
msm: Generalize timer register mappings

Allow the timer register to be determined dynamically instead of at
compile time.  Use common virtual addresses for the registers across
all MSM chips, and select the register mappings based on the detected
CPU.

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agomsm: Add CPU queries
David Brown [Wed, 5 Jan 2011 01:02:48 +0000 (17:02 -0800)]
msm: Add CPU queries

Create runtime queries to distinguish the various MSM targets.
Although these would probably be better named soc_is..., use
cpu_is... to match convention in the rest of the kernel.

Hard code the tests based on config options for now.  When runtime
device detection is implemented, these can be made dynamic.

Signed-off-by: David Brown <davidb@codeaurora.org>
13 years agoKEYS: Fix up comments in key management code
David Howells [Thu, 20 Jan 2011 16:38:33 +0000 (16:38 +0000)]
KEYS: Fix up comments in key management code

Fix up comments in the key management code.  No functional changes.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoKEYS: Do some style cleanup in the key management code.
David Howells [Thu, 20 Jan 2011 16:38:27 +0000 (16:38 +0000)]
KEYS: Do some style cleanup in the key management code.

Do a bit of a style clean up in the key management code.  No functional
changes.

Done using:

  perl -p -i -e 's!^/[*]*/\n!!' security/keys/*.c
  perl -p -i -e 's!} /[*] end [a-z0-9_]*[(][)] [*]/\n!}\n!' security/keys/*.c
  sed -i -s -e ": next" -e N -e 's/^\n[}]$/}/' -e t -e P -e 's/^.*\n//' -e "b next" security/keys/*.c

To remove /*****/ lines, remove comments on the closing brace of a
function to name the function and remove blank lines before the closing
brace of a function.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 21 Jan 2011 21:44:07 +0000 (13:44 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: fix up CIFSSMBEcho for unaligned access
  cifs: fix unaligned accesses in cifsConvertToUCS
  cifs: clean up unaligned accesses in cifs_unicode.c
  cifs: fix unaligned access in check2ndT2 and coalesce_t2
  cifs: clean up unaligned accesses in validate_t2
  cifs: use get/put_unaligned functions to access ByteCount
  cifs: move time field in cifsInodeInfo
  cifs: TCP_Server_Info diet
  CIFS: Implement cifs_strict_readv (try #4)
  CIFS: Implement cifs_file_strict_mmap (try #2)
  CIFS: Implement cifs_strict_fsync
  CIFS: Make cifsFileInfo_put work with strict cache mode

13 years agoMerge branch 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Linus Torvalds [Fri, 21 Jan 2011 21:43:21 +0000 (13:43 -0800)]
Merge branch 'fixes-2.6.38' of git://git./linux/kernel/git/tj/percpu

* 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  x86,percpu: Move out of place 64 bit ops into X86_64 section

13 years agoMerge branch 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Linus Torvalds [Fri, 21 Jan 2011 21:38:57 +0000 (13:38 -0800)]
Merge branch 'fixes-2.6.38' of git://git./linux/kernel/git/tj/wq

* 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: note the nested NOT_RUNNING test in worker_clr_flags() isn't a noop
  workqueue: relax lockdep annotation on flush_work()

13 years agoMerge branch 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Jan 2011 21:38:26 +0000 (13:38 -0800)]
Merge branch 'irq-cleanup-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits)
  um: Use generic irq Kconfig
  tile: Use generic irq Kconfig
  sparc: Use generic irq Kconfig
  score: Use generic irq Kconfig
  powerpc: Use generic irq Kconfig
  parisc: Use generic irq Kconfig
  mn10300: Use generic irq Kconfig
  microblaze: Use generic irq Kconfig
  m68knommu: Use generic irq Kconfig
  ia64: Use generic irq Kconfig
  frv: Use generic irq Kconfig
  blackfin: Use generic irq Kconfig
  alpha: Use generic irq Kconfig
  genirq: Remove __do_IRQ
  m32r: Convert to generic irq Kconfig
  m32r: Convert usrv platform irq handling
  m32r: Convert opsput_lcdpld irq chip
  m32r: Convert opsput lanpld irq chip
  m32r: Convert opsput pld irq chip
  m32r: Convert opsput irq chip
  ...

13 years agoMerge branch 'stable/bug-fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 21 Jan 2011 21:35:10 +0000 (13:35 -0800)]
Merge branch 'stable/bug-fixes-rc1' of git://git./linux/kernel/git/konrad/xen

* 'stable/bug-fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: p2m: correctly initialize partial p2m leaf
  xen: fix non-ANSI function warning in irq.c

13 years agoMerge branches 'fixes' and 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 21 Jan 2011 21:34:39 +0000 (13:34 -0800)]
Merge branches 'fixes' and 'fwnet' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: core: fix unstable I/O with Canon camcorder

* 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: net: is not experimental anymore
  firewire: net: invalidate ARP entries of removed nodes

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 21 Jan 2011 21:24:33 +0000 (13:24 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix EAPD to low on CZC P10T tablet computer with ALC662
  ALSA: HDA: Add SKU ignore for another Thinkpad Edge 14
  ALSA: hda - Fix "unused variable" compile warning
  ALSA: hda - Add quirk for HP Z-series workstation
  Revert "ALSA: HDA: Create mixers on ALC887"
  ASoC: PXA: Fix codec address on Zipit Z2
  ASoC: PXA: Fix jack detection on Zipit Z2
  ASoC: Blackfin: fix DAI/SPORT config dependency issues
  ASoC: Blackfin TDM: use external frame syncs
  ASoC: Blackfin AC97: fix build error after multi-component update
  ASoC: Blackfin TDM: fix missed snd_soc_dai_get_drvdata update
  ASoC: documentation updates
  ALSA: ice1712 delta - initialize SPI clock

13 years agoMerge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Fri, 21 Jan 2011 21:24:16 +0000 (13:24 -0800)]
Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6

* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
  powerpc/83xx: fix build failures on dt compatible list.

13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Fri, 21 Jan 2011 21:23:52 +0000 (13:23 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits)
  powerpc/mpic: Fix mask/unmask timeout message
  powerpc/pseries: Add BNX2=m to defconfig
  powerpc: Enable 64kB pages and 1024 threads in pseries config
  powerpc: Disable mcount tracers in pseries defconfig
  powerpc/boot/dts: Install dts from the right directory
  powerpc: machine_check_generic is wrong on 64bit
  powerpc: Check RTAS extended log flag before checking length
  powerpc: Fix corruption when grabbing FWNMI data
  powerpc: Rework pseries machine check handler
  powerpc: Don't silently handle machine checks from userspace
  powerpc: Remove duplicate debugger hook in machine_check_exception
  powerpc: Never halt RTAS error logging after receiving an unrecoverable machine check
  powerpc: Don't force MSR_RI in machine_check_exception
  powerpc: Print 32 bits of DSISR in show_regs
  powerpc/kdump: Disable ftrace during kexec
  powerpc/kdump: Move crash_kexec_stop_spus to kdump crash handler
  powerpc/kexec: Remove empty ppc_md.machine_kexec_prepare
  powerpc/kexec: Don't initialise kexec hooks to default handlers
  powerpc/kdump: Remove ppc_md.machine_crash_shutdown
  powerpc/kexec: Remove ppc_md.machine_kexec
  ...

13 years agomm: System without MMU do not need pte_mkwrite
Michal Simek [Fri, 21 Jan 2011 07:49:56 +0000 (08:49 +0100)]
mm: System without MMU do not need pte_mkwrite

The patch "thp: export maybe_mkwrite" (commit 14fd403f2146) breaks
systems without MMU.

Error log:

    CC      arch/microblaze/mm/init.o
  In file included from include/linux/mman.h:14,
                   from arch/microblaze/mm/consistent.c:24:
  include/linux/mm.h: In function 'maybe_mkwrite':
  include/linux/mm.h:482: error: implicit declaration of function 'pte_mkwrite'
  include/linux/mm.h:482: error: incompatible types in assignment

Signed-off-by: Michal Simek <monstr@monstr.eu>
CC: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMAINTAINERS: Update Roland Dreier's email address
Roland Dreier [Fri, 21 Jan 2011 00:23:08 +0000 (16:23 -0800)]
MAINTAINERS: Update Roland Dreier's email address

The cisco.com address will stop working soon, and besides no one can
remember the second "d" in "rolandd" or how to spell "rdreier."

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoxen: p2m: correctly initialize partial p2m leaf
Stefan Bader [Thu, 20 Jan 2011 14:38:23 +0000 (15:38 +0100)]
xen: p2m: correctly initialize partial p2m leaf

After changing the p2m mapping to a tree by

  commit 58e05027b530ff081ecea68e38de8d59db8f87e0
    xen: convert p2m to a 3 level tree

and trying to boot a DomU with 615MB of memory, the following crash was
observed in the dump:

kernel direct mapping tables up to 26f00000 @ 1ec4000-1fff000
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<c0107397>] xen_set_pte+0x27/0x60
*pdpt = 0000000000000000 *pde = 0000000000000000

Adding further debug statements showed that when trying to set up
pfn=0x26700 the returned mapping was invalid.

pfn=0x266ff calling set_pte(0xc1fe77f8, 0x6b3003)
pfn=0x26700 calling set_pte(0xc1fe7800, 0x3)

Although the last_pfn obtained from the startup info is 0x26700, which
should in turn not be hit, the additional 8MB which are added as extra
memory normally seem to be ok. This lead to looking into the initial
p2m tree construction, which uses the smaller value and assuming that
there is other code handling the extra memory.

When the p2m tree is set up, the leaves are directly pointed to the
array which the domain builder set up. But if the mapping is not on a
boundary that fits into one p2m page, this will result in the last leaf
being only partially valid. And as the invalid entries are not
initialized in that case, things go badly wrong.

I am trying to fix that by checking whether the current leaf is a
complete map and if not, allocate a completely new page and copy only
the valid pointers there. This may not be the most efficient or elegant
solution, but at least it seems to allow me booting DomUs with memory
assignments all over the range.

BugLink: http://bugs.launchpad.net/bugs/686692
[v2: Redid a bit of commit wording and fixed a compile warning]

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
13 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Fri, 21 Jan 2011 15:33:37 +0000 (07:33 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Fix deadlock during path resolution

13 years agoum: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:46:24 +0000 (20:46 +0100)]
um: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jeff Dike <jdike@addtoit.com>
13 years agotile: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:44:43 +0000 (20:44 +0100)]
tile: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
13 years agosparc: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:43:56 +0000 (20:43 +0100)]
sparc: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: "David S. Miller" <davem@davemloft.net>
13 years agoscore: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:41:19 +0000 (20:41 +0100)]
score: Use generic irq Kconfig

No functional change

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Chen Liqin <liqin.chen@sunplusct.com>
13 years agopowerpc: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:39:39 +0000 (20:39 +0100)]
powerpc: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agoparisc: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:38:30 +0000 (20:38 +0100)]
parisc: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
13 years agomn10300: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:36:02 +0000 (20:36 +0100)]
mn10300: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Howells <dhowells@redhat.com>
13 years agomicroblaze: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:35:05 +0000 (20:35 +0100)]
microblaze: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michal Simek <monstr@monstr.eu>
13 years agom68knommu: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:34:21 +0000 (20:34 +0100)]
m68knommu: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Ungerer <gerg@uclinux.org>
13 years agoia64: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:32:46 +0000 (20:32 +0100)]
ia64: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tony Luck <tony.luck@intel.com>
13 years agofrv: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:32:04 +0000 (20:32 +0100)]
frv: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Howells <dhowells@redhat.com>
13 years agoblackfin: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:29:58 +0000 (20:29 +0100)]
blackfin: Use generic irq Kconfig

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mike Frysinger <vapier@gentoo.org>
13 years agoalpha: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 19:27:11 +0000 (20:27 +0100)]
alpha: Use generic irq Kconfig

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Henderson <rth@twiddle.net>
13 years agogenirq: Remove __do_IRQ
Thomas Gleixner [Wed, 19 Jan 2011 18:41:35 +0000 (19:41 +0100)]
genirq: Remove __do_IRQ

All architectures are finally converted. Remove the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Michal Simek <monstr@monstr.eu>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
13 years agom32r: Convert to generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 18:17:10 +0000 (19:17 +0100)]
m32r: Convert to generic irq Kconfig

Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as
we have converted all irq_chip functions.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert usrv platform irq handling
Thomas Gleixner [Wed, 19 Jan 2011 18:10:18 +0000 (19:10 +0100)]
m32r: Convert usrv platform irq handling

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert opsput_lcdpld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 18:01:23 +0000 (19:01 +0100)]
m32r: Convert opsput_lcdpld irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert opsput lanpld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:58:45 +0000 (18:58 +0100)]
m32r: Convert opsput lanpld irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert opsput pld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:55:09 +0000 (18:55 +0100)]
m32r: Convert opsput pld irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert opsput irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:48:15 +0000 (18:48 +0100)]
m32r: Convert opsput irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert oaks32r irq chips
Thomas Gleixner [Wed, 19 Jan 2011 17:44:10 +0000 (18:44 +0100)]
m32r: Convert oaks32r irq chips

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert mappi3 irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:39:27 +0000 (18:39 +0100)]
m32r: Convert mappi3 irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert mappi2 irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:34:51 +0000 (18:34 +0100)]
m32r: Convert mappi2 irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert mappi irq chips
Thomas Gleixner [Wed, 19 Jan 2011 17:27:59 +0000 (18:27 +0100)]
m32r: Convert mappi irq chips

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert m32700ut lcdpld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:19:42 +0000 (18:19 +0100)]
m32r: Convert m32700ut lcdpld irq chip

Convert the irq chip to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert m32700ut lanpld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 17:14:21 +0000 (18:14 +0100)]
m32r: Convert m32700ut lanpld irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert m32700ut pld irq chip
Thomas Gleixner [Wed, 19 Jan 2011 16:41:51 +0000 (17:41 +0100)]
m32r: Convert m32700ut pld irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert m32104ut irq chip
Thomas Gleixner [Tue, 11 Jan 2011 09:43:49 +0000 (10:43 +0100)]
m32r: Convert m32104ut irq chip

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Convert m32104ut irq handling
Thomas Gleixner [Wed, 19 Jan 2011 16:02:29 +0000 (17:02 +0100)]
m32r: Convert m32104ut irq handling

Convert the irq chips to the new functions and use proper flow
handlers. handle_level_irq is appropriate.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agom32r: Cleanup direct irq_desc access
Thomas Gleixner [Wed, 22 Sep 2010 17:13:16 +0000 (19:13 +0200)]
m32r: Cleanup direct irq_desc access

The irq descriptors are already initialized by the generic
code. Remove the redundant init code and set the irq chip with the
proper accessor function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agocris: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 13:20:13 +0000 (14:20 +0100)]
cris: Use generic irq Kconfig

Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as
we have converted all irq_chip functions. Fix the fallout in
show_interrupts().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mikael Starvik <starvik@axis.com>
13 years agocris: Convert V32 interrupt handling
Thomas Gleixner [Wed, 19 Jan 2011 13:05:30 +0000 (14:05 +0100)]
cris: Convert V32 interrupt handling

Convert the irq chip functions and install handle_simple_irq for each
interrupt to get rid of __do_IRQ()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mikael Starvik <starvik@axis.com>
13 years agocris: Convert V10 interrupt handling
Thomas Gleixner [Wed, 19 Jan 2011 12:54:54 +0000 (13:54 +0100)]
cris: Convert V10 interrupt handling

Convert the irq_chip functions and install handle_simple_irq for each
interrupt. This converts V10 to the flow handling and lets us remove
__do_IRQ().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mikael Starvik <starvik@axis.com>
13 years agocris: Use irq handling wrapper
Thomas Gleixner [Wed, 19 Jan 2011 12:59:01 +0000 (13:59 +0100)]
cris: Use irq handling wrapper

Use the wrapper around __do_IRQ() so we can convert V10 and V32
seperately.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mikael Starvik <starvik@axis.com>
13 years agoh8300: Use generic irq Kconfig
Thomas Gleixner [Wed, 19 Jan 2011 11:26:32 +0000 (12:26 +0100)]
h8300: Use generic irq Kconfig

Switch to the generic irq Kconfig. h8300 has all irq chips converted
to the new functions, so select the GENERIC_HARDIRQS_NO_DEPRECATED
switch as well. Fixup the resulting fallout in show_interrupts().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agoh8300: Convert interrupt handling to flow handler
Thomas Gleixner [Wed, 19 Jan 2011 11:18:57 +0000 (12:18 +0100)]
h8300: Convert interrupt handling to flow handler

__do_IRQ is deprecated so h8300 needs to be converted to proper flow
handling. The irq chip is simple and does not required any
mask/ack/eoi functions, so we can use handle_simple_irq.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agoh8300: Convert to new irq_chip functions
Thomas Gleixner [Wed, 19 Jan 2011 11:15:29 +0000 (12:15 +0100)]
h8300: Convert to new irq_chip functions

No functional change, just straight forward conversion.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Paul Mundt <lethal@linux-sh.org>
13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 21 Jan 2011 07:10:14 +0000 (08:10 +0100)]
Merge branch 'fix/asoc' into for-linus

13 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Fri, 21 Jan 2011 07:10:09 +0000 (08:10 +0100)]
Merge branch 'fix/misc' into for-linus

13 years agopowerpc/mpic: Fix mask/unmask timeout message
Scott Wood [Mon, 17 Jan 2011 12:10:41 +0000 (12:10 +0000)]
powerpc/mpic: Fix mask/unmask timeout message

Don't say that enable timed out when it was disable, and
show which IRQ had the problem.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/pseries: Add BNX2=m to defconfig
Nishanth Aravamudan [Thu, 13 Jan 2011 13:22:39 +0000 (13:22 +0000)]
powerpc/pseries: Add BNX2=m to defconfig

Upcoming servers will include a Broadcom NIC, add to the defconfig to
increase testing coverage and make sure mainline builds come up with
networking.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Enable 64kB pages and 1024 threads in pseries config
Anton Blanchard [Wed, 12 Jan 2011 02:14:32 +0000 (02:14 +0000)]
powerpc: Enable 64kB pages and 1024 threads in pseries config

- Enable 64kB pages so it gets some regular testing.

- The largest POWER7 has 1024 threads so bump NR_CPUS it to match.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Disable mcount tracers in pseries defconfig
Anton Blanchard [Wed, 12 Jan 2011 02:12:43 +0000 (02:12 +0000)]
powerpc: Disable mcount tracers in pseries defconfig

IRQSOFF_TRACER and STACK_TRACER force the kernel to be built with -pg
which is a substantial overhead.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/boot/dts: Install dts from the right directory
Ben Hutchings [Sat, 8 Jan 2011 14:24:01 +0000 (14:24 +0000)]
powerpc/boot/dts: Install dts from the right directory

The dts-installed variable is initialised using a wildcard path that
will be expanded relative to the build directory.  Use the existing
variable dtstree to generate an absolute wildcard path that will work
when building in a separate directory.

Reported-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Gerhard Pircher <gerhard_pircher@gmx.net> [against 2.6.32]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: machine_check_generic is wrong on 64bit
Anton Blanchard [Tue, 11 Jan 2011 19:52:31 +0000 (19:52 +0000)]
powerpc: machine_check_generic is wrong on 64bit

Decoding machine checks is CPU specific and so machine_check_generic doesn't
do the right thing on 64bit chips. Luckily we never call into this code
because we call ppc_md.machine_check_exception instead if available.

Since we check cur_cpu_spec->machine_check before calling it, we may as
well remove machine_check_generic from 64bit archs.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Check RTAS extended log flag before checking length
Anton Blanchard [Tue, 11 Jan 2011 19:51:31 +0000 (19:51 +0000)]
powerpc: Check RTAS extended log flag before checking length

The spec suggests we should first check the extended log flag before checking
the length field.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Fix corruption when grabbing FWNMI data
Anton Blanchard [Tue, 11 Jan 2011 19:50:51 +0000 (19:50 +0000)]
powerpc: Fix corruption when grabbing FWNMI data

The FWNMI code uses a global buffer without any locks to read the RTAS error
information. If two CPUs take a machine check at once then we will corrupt
this buffer.

Since most FWNMI rtas messages are not of the extended type, we can create a
64bit percpu buffer and use it where possible. If we do receive an extended
RTAS log then we fall back to the old behaviour of using the global buffer.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Rework pseries machine check handler
Anton Blanchard [Tue, 11 Jan 2011 19:49:19 +0000 (19:49 +0000)]
powerpc: Rework pseries machine check handler

Rework pseries machine check handler:

- If MSR_RI isn't set, we cannot recover even if the machine check was fully
  recovered

- Rename nonfatal to recovered

- Handle RTAS_DISP_LIMITED_RECOVERY

- Use BUS_MCEERR_AR instead of BUS_ADRERR

- Don't check all the RTAS error log fields when receiving a synchronous
  machine check. Recent versions of the pseries firmware do not fill them
  in during a machine check and instead send a follow up error log with
  the detailed information. If we see a synchronous machine check, and we
  came from userspace then kill the task.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Don't silently handle machine checks from userspace
Anton Blanchard [Tue, 11 Jan 2011 19:48:14 +0000 (19:48 +0000)]
powerpc: Don't silently handle machine checks from userspace

If a machine check comes from userspace we send a SIGBUS to the task and
fail to printk anything.

If we are taking machine checks due to bad hardware we want to know about
it right away. Furthermore if we don't complain loudly then it will look
a lot like a bug in the userspace application, potentially causing a lot
of confusion.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Remove duplicate debugger hook in machine_check_exception
Anton Blanchard [Tue, 11 Jan 2011 19:47:20 +0000 (19:47 +0000)]
powerpc: Remove duplicate debugger hook in machine_check_exception

We are calling debugger_fault_handler twice in machine_check_exception.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Never halt RTAS error logging after receiving an unrecoverable machine check
Anton Blanchard [Tue, 11 Jan 2011 19:46:29 +0000 (19:46 +0000)]
powerpc: Never halt RTAS error logging after receiving an unrecoverable machine check

Newer versions of the System p firwmare send a partial RTAS error log in the
machine check handler with a more detailed response appearing sometime later
via check event.

This means at machine check time we do not have enough information to
ascertain exactly what went on. Furthermore, I have found the RTAS error
logs in the machine check handler contain no useful information, so halting on
them makes little sense. If we want to halt it would make more sense to do
it following the error log received sometime later via check event.

In light of this, never halt the error log in the pseries machine
check handler.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Don't force MSR_RI in machine_check_exception
Anton Blanchard [Tue, 11 Jan 2011 19:45:31 +0000 (19:45 +0000)]
powerpc: Don't force MSR_RI in machine_check_exception

We should never force MSR_RI on. If we take a machine check with MSR_RI off
then we have no chance of recovering safely.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Print 32 bits of DSISR in show_regs
Anton Blanchard [Tue, 11 Jan 2011 19:44:30 +0000 (19:44 +0000)]
powerpc: Print 32 bits of DSISR in show_regs

We were printing 64 bits of DSISR in show_regs even though it is 32 bit.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kdump: Disable ftrace during kexec
Anton Blanchard [Thu, 6 Jan 2011 18:00:36 +0000 (18:00 +0000)]
powerpc/kdump: Disable ftrace during kexec

We should disable ftrace during kexec, some of the tracers are very invasive
and we do not want them going off while doing the low level work of swapping
one kernel out for another. This mirrors what we do on x86.

Even though we cannot return from a kexec on powerpc (since we do not implement
CONFIG_KEXEC_JUMP), add the restore code in case we do one day.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kdump: Move crash_kexec_stop_spus to kdump crash handler
Anton Blanchard [Fri, 21 Jan 2011 02:43:59 +0000 (13:43 +1100)]
powerpc/kdump: Move crash_kexec_stop_spus to kdump crash handler

Use the crash handler hooks to run the SPU stop code, just like we do for
ehea and cell RAS code.

While I'm here I noticed "CPUSs reliabally"

so fix the spelling MISTAKESs reliabally.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Remove empty ppc_md.machine_kexec_prepare
Anton Blanchard [Thu, 6 Jan 2011 17:58:36 +0000 (17:58 +0000)]
powerpc/kexec: Remove empty ppc_md.machine_kexec_prepare

We check for a valid handler before calling ppc_md.machine_kexec_prepare
so we can just remove these empty handlers.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Don't initialise kexec hooks to default handlers
Anton Blanchard [Thu, 6 Jan 2011 17:57:03 +0000 (17:57 +0000)]
powerpc/kexec: Don't initialise kexec hooks to default handlers

There's no need to initialise ppc_md.machine_kexec and
ppc_md.machine_kexec_prepare to the default handlers.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kdump: Remove ppc_md.machine_crash_shutdown
Anton Blanchard [Thu, 6 Jan 2011 17:56:09 +0000 (17:56 +0000)]
powerpc/kdump: Remove ppc_md.machine_crash_shutdown

No one uses ppc_md.machine_crash_shutdown, so remove it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Remove ppc_md.machine_kexec
Anton Blanchard [Thu, 6 Jan 2011 17:55:36 +0000 (17:55 +0000)]
powerpc/kexec: Remove ppc_md.machine_kexec

No one uses ppc_md.machine_kexec, so remove it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Remove ppc_md.machine_kexec_cleanup
Anton Blanchard [Thu, 6 Jan 2011 17:54:58 +0000 (17:54 +0000)]
powerpc/kexec: Remove ppc_md.machine_kexec_cleanup

No one uses ppc_md.machine_kexec_cleanup, so remove it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Move all ppc_md kexec function pointers together
Anton Blanchard [Thu, 6 Jan 2011 17:54:15 +0000 (17:54 +0000)]
powerpc/kexec: Move all ppc_md kexec function pointers together

Move all the kexec handlers together.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/cell: Use system_wq in cpufreq_spudemand
Tejun Heo [Mon, 3 Jan 2011 03:49:25 +0000 (03:49 +0000)]
powerpc/cell: Use system_wq in cpufreq_spudemand

With cmwq, there's no reason to use a separate workqueue in
cpufreq_spudemand.  Use system_wq instead.  The work items are already
sync canceled on stop, so it's already guaranteed that no work is
running when spu_gov_exit() is entered.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Dave Jones <davej@redhat.com>
Cc: cpufreq@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>