Commit Graph

49690 Commits

Author SHA1 Message Date
Linus Torvalds 7d7c4d06be Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
  MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls.
  MAINTAINERS: Change list for ioc_serial to linux-serial.
  SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure
  MIPS: jz4740: Fix Kbuild Platform file.
  MIPS: Repair Kbuild make clean breakage.
2010-10-20 13:18:21 -07:00
Linus Torvalds ef2533dae5 Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Fix fs/gs reload oops with invalid ldt
2010-10-20 09:00:44 -07:00
Michel Thebeau e2cc502c3f MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls.
[Ralf: Michel's original patch only fixed N32; I replicated the same fix
for O32.]

Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com>
Cc: paul.gortmaker@windriver.com
Cc: bruce.ashfield@windriver.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-19 18:32:41 +01:00
David Daney 08be7b2bc7 MIPS: jz4740: Fix Kbuild Platform file.
The platform specific files should be included via the platform-y
variable.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Patchwork: https://patchwork.linux-mips.org/patch/1719/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-19 18:32:39 +01:00
David Daney ad4b2b627c MIPS: Repair Kbuild make clean breakage.
When running make clean, Kbuild doesn't process the .config file, so nothing
generates a platform-y variable.  We can get it to descend into the platform
directories by setting $(obj-).

The dec Platform file was unconditionally setting platform-, obliterating
its previous contents and preventing some directories from being cleaned.
This is change to an append operation '+=' to allow cavium-octeon to be
cleaned.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Patchwork: https://patchwork.linux-mips.org/patch/1718/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-19 18:32:39 +01:00
Avi Kivity 9581d442b9 KVM: Fix fs/gs reload oops with invalid ldt
kvm reloads the host's fs and gs blindly, however the underlying segment
descriptors may be invalid due to the user modifying the ldt after loading
them.

Fix by using the safe accessors (loadsegment() and load_gs_index()) instead
of home grown unsafe versions.

This is CVE-2010-3698.

KVM-Stable-Tag.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-19 14:21:45 -02:00
Linus Torvalds 547af560dd Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Enable ISA_DMA_API config to fix build failure
  MIPS: 32-bit: Fix build failure in asm/fcntl.h
  MIPS: Remove all generated vmlinuz* files on "make clean"
  MIPS: do_sigaltstack() expects userland pointers
  MIPS: Fix error values in case of bad_stack
  MIPS: Sanitize restart logics
  MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
  MIPS: Don't block signals if we'd failed to setup a sigframe
2010-10-18 13:10:36 -07:00
Namhyung Kim a35bee8a27 MIPS: Enable ISA_DMA_API config to fix build failure
Add ISA_DMA_API config item and select it when GENERIC_ISA_DMA enabled.
This fixes build failure on allmodconfig like following:

  CC      sound/isa/es18xx.o
sound/isa/es18xx.c: In function 'snd_es18xx_playback1_prepare':
sound/isa/es18xx.c:501:9: error: implicit declaration of function 'snd_dma_program'
sound/isa/es18xx.c: In function 'snd_es18xx_playback_pointer':
sound/isa/es18xx.c:818:3: error: implicit declaration of function 'snd_dma_pointer'
make[3]: *** [sound/isa/es18xx.o] Error 1
make[2]: *** [sound/isa/es18xx.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1717/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Namhyung Kim 063c13a5ad MIPS: 32-bit: Fix build failure in asm/fcntl.h
CC      security/integrity/ima/ima_fs.o
In file included from linux/include/linux/fcntl.h:4:0,
                 from linux/security/integrity/ima/ima_fs.c:18:
linux/arch/mips/include/asm/fcntl.h:63:2: error: expected specifier-qualifier-list before 'off_t'
make[3]: *** [security/integrity/ima/ima_fs.o] Error 1
make[2]: *** [security/integrity/ima/ima_fs.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1715/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Wu Zhangjin ec3352925b MIPS: Remove all generated vmlinuz* files on "make clean"
[Ralf: I changed the patch to explicitly list all files to be deleted out
of paranoia.]

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/1590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Al Viro 4bfb8c5c87 MIPS: do_sigaltstack() expects userland pointers
o32 compat does the right thing, native and n32 compat do not...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:03 +01:00
Al Viro 5b89c0044e MIPS: Fix error values in case of bad_stack
We want EFAULT, not -<syscall number>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:03 +01:00
Al Viro 8f5a00eb42 MIPS: Sanitize restart logics
Put the original syscall number into ->regs[0] when we leave syscall
with error.  Use it in restart logics.  Everything else will have
it 0 since we pass through SAVE_SOME on all the ways in.  Note that
in places like bad_stack and inllegal_syscall we leave it 0 - it's not
restartable.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:02 +01:00
Al Viro e5b377a8fb MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
As it is, audit_syscall_entry() and secure_computing() get the
bogus value (0, in fact)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1697/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:02 +01:00
Al Viro 062ab57b2f MIPS: Don't block signals if we'd failed to setup a sigframe
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1696/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:02 +01:00
Kyle McMartin 2d019713b7 m32r: test __LITTLE_ENDIAN__ instead of __LITTLE_ENDIAN
Fixes build for me... these are what's tested in byteorder.h...

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 19:37:50 -07:00
Kyle McMartin 4f515cc932 m32r: add kernel/.gitignore and ignore vmlinux.lds
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 19:37:50 -07:00
Kyle McMartin 388d148fe8 m32r: get_user takes an lvalue, not a pointer
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Al "my fuckup" Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 19:37:50 -07:00
Kyle McMartin 99d6734f3c m32r: restore _BLOCKABLE
Commit a7f8388e accidentally removed it... Al explains:

  "Sorry, reordering breakage.  In the signals tree here I have

   static inline void sig_set_blocked(struct sigset_t *set)
   ...

   and it's used all over the place (including quite a few places where
   we currently have sigprocmask(SIG_SETMASK, set, NULL), which is what
   it's equivalent to).  With that done, m32r doesn't use _BLOCKABLE
   anywhere, so it got removed.  And that chunk got picked when I'd been
   reordering the queue to pull the arch-specific fixes in front.
   Sorry."

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 19:37:50 -07:00
FUJITA Tomonori e3c6cf6181 uml: fix build
Fix a build error introduced by d6d1b650ae ("param: simple
locking for sysfs-writable charp parameters").

    CC      arch/um/kernel/trap.o
  arch/um/drivers/hostaudio_kern.c: In function 'hostaudio_open':
  arch/um/drivers/hostaudio_kern.c:204: error: '__param_dsp' undeclared (first use in this function)
  arch/um/drivers/hostaudio_kern.c:204: error: (Each undeclared identifier is reported only once
  arch/um/drivers/hostaudio_kern.c:204: error: for each function it appears in.)
  arch/um/drivers/hostaudio_kern.c: In function 'hostmixer_open_mixdev':
  arch/um/drivers/hostaudio_kern.c:265: error: '__param_mixer' undeclared (first use in this function)
  arch/um/drivers/hostaudio_kern.c:272: error: '__param_dsp' undeclared (first use in this function)

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Toralf Förster <toralf.foerster@gmx.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 14:42:24 -07:00
Linus Torvalds 264780c290 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  ubd: fix incorrect sector handling during request restart
  ps3disk: passing wrong variable to bvec_kunmap_irq()
2010-10-15 09:49:16 -07:00
Tejun Heo 47526903fe ubd: fix incorrect sector handling during request restart
Commit f81f2f7c (ubd: drop unnecessary rq->sector manipulation)
dropped request->sector manipulation in preparation for global request
handling cleanup; unfortunately, it incorrectly assumed that the
updated sector wasn't being used.

ubd tries to issue as many requests as possible to io_thread.  When
issuing fails due to memory pressure or other reasons, the device is
put on the restart list and issuing stops.  On IO completion, devices
on the restart list are scanned and IO issuing is restarted.

ubd issues IOs sg-by-sg and issuing can be stopped in the middle of a
request, so each device on the restart queue needs to remember where
to restart in its current request.  ubd needs to keep track of the
issue position itself because,

* blk_rq_pos(req) is now updated by the block layer to keep track of
  _completion_ position.

* Multiple io_req's for the current request may be in flight, so it's
  difficult to tell where blk_rq_pos(req) currently is.

Add ubd->rq_pos to keep track of the issue position and use it to
correctly restart io_req issue.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Richard Weinberger <richard@nod.at>
Tested-by: Richard Weinberger <richard@nod.at>
Tested-by: Chris Frey <cdfrey@foursquare.net>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-10-15 12:56:21 +02:00
Linus Torvalds 0eead9ab41 Don't dump task struct in a.out core-dumps
akiphie points out that a.out core-dumps have that odd task struct
dumping that was never used and was never really a good idea (it goes
back into the mists of history, probably the original core-dumping
code).  Just remove it.

Also do the access_ok() check on dump_write().  It probably doesn't
matter (since normal filesystems all seem to do it anyway), but he
points out that it's normally done by the VFS layer, so ...

[ I suspect that we should possibly do "vfs_write()" instead of
  calling ->write directly.  That also does the whole fsnotify and write
  statistics thing, which may or may not be a good idea. ]

And just to be anal, do this all for the x86-64 32-bit a.out emulation
code too, even though it's not enabled (and won't currently even
compile)

Reported-by: akiphie <akiphie@lavabit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-14 10:57:40 -07:00
Linus Torvalds d94bc4fc24 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: relax ioremap prohibition (309caa9) for -final and -stable
  ARM: 6440/1: ep93xx: DMA: fix channel_disable
  cpuimx27: fix i2c bus selection
  cpuimx27: fix compile when ULPI is selected
  ARM: 6435/1: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9
  ARM: 6436/1: AT91: Fix power-saving in idle-mode on 926T processors
  ARM: fix section mismatch warnings in Versatile Express
  ARM: 6412/1: kprobes-decode: add support for MOVW instruction
  ARM: 6419/1: mmu: Fix MT_MEMORY and MT_MEMORY_NONCACHED pte flags
  ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption
2010-10-13 16:35:33 -07:00
Linus Torvalds 7081319658 Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omap: iommu-load cam register before flushing the entry
2010-10-13 16:35:05 -07:00
Linus Torvalds 509d4486bd 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, numa: For each node, register the memory blocks actually used
  x86, AMD, MCE thresholding: Fix the MCi_MISCj iteration order
  x86, mce, therm_throt.c: Fix missing curly braces in error handling logic
2010-10-13 16:34:23 -07:00
Russell King 06c1088448 ARM: relax ioremap prohibition (309caa9) for -final and -stable
... but produce a big warning about the problem as encouragement
for people to fix their drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-13 00:19:03 +01:00
Russell King 841f48a849 Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 2010-10-12 22:43:36 +01:00
Mika Westerberg 10d48b3934 ARM: 6440/1: ep93xx: DMA: fix channel_disable
When channel_disable() is called, it disables per channel interrupts and
waits until channels state becomes STATE_STALL, and then disables the
channel. Now, if the DMA transfer is disabled while the channel is in
STATE_NEXT we will not wait anything and disable the channel immediately.
This seems to cause weird data corruption for example in audio transfers.

Fix is to wait while we are in STATE_NEXT or STATE_ON and only then
disable the channel.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-12 22:43:19 +01:00
Yinghai Lu 73cf624d02 x86, numa: For each node, register the memory blocks actually used
Russ reported SGI UV is broken recently. He said:

| The SRAT table shows that memory range is spread over two nodes.
|
| SRAT: Node 0 PXM 0 100000000-800000000
| SRAT: Node 1 PXM 1 800000000-1000000000
| SRAT: Node 0 PXM 0 1000000000-1080000000
|
|Previously, the kernel early_node_map[] would show three entries
|with the proper node.
|
|[    0.000000]     0: 0x00100000 -> 0x00800000
|[    0.000000]     1: 0x00800000 -> 0x01000000
|[    0.000000]     0: 0x01000000 -> 0x01080000
|
|The problem is recent community kernel early_node_map[] shows
|only two entries with the node 0 entry overlapping the node 1
|entry.
|
|    0: 0x00100000 -> 0x01080000
|    1: 0x00800000 -> 0x01000000

After looking at the changelog, Found out that it has been broken for a while by
following commit

|commit 8716273cae
|Author: David Rientjes <rientjes@google.com>
|Date:   Fri Sep 25 15:20:04 2009 -0700
|
|    x86: Export srat physical topology

Before that commit, register_active_regions() is called for every SRAT memory
entry right away.

Use nodememblk_range[] instead of nodes[] in order to make sure we
capture the actual memory blocks registered with each node.  nodes[]
contains an extended range which spans all memory regions associated
with a node, but that does not mean that all the memory in between are
included.

Reported-by: Russ Anderson <rja@sgi.com>
Tested-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4CB27BDF.5000800@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org> 2.6.33 .34 .35 .36
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-10-11 15:26:15 -07:00
Zachary Amsden 47008cd887 KVM: x86: Move TSC reset out of vmcb_init
The VMCB is reset whenever we receive a startup IPI, so Linux is setting
TSC back to zero happens very late in the boot process and destabilizing
the TSC.  Instead, just set TSC to zero once at VCPU creation time.

Why the separate patch?  So git-bisect is your friend.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-11 12:36:07 +02:00
Zachary Amsden 58877679fd KVM: x86: Fix SVM VMCB reset
On reset, VMCB TSC should be set to zero.  Instead, code was setting
tsc_offset to zero, which passes through the underlying TSC.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-11 12:36:07 +02:00
Borislav Petkov 6dcbfe4f0b x86, AMD, MCE thresholding: Fix the MCi_MISCj iteration order
This fixes possible cases of not collecting valid error info in
the MCE error thresholding groups on F10h hardware.

The current code contains a subtle problem of checking only the
Valid bit of MSR0000_0413 (which is MC4_MISC0 - DRAM
thresholding group) in its first iteration and breaking out if
the bit is cleared.

But (!), this MSR contains an offset value, BlkPtr[31:24], which
points to the remaining MSRs in this thresholding group which
might contain valid information too. But if we bail out only
after we checked the valid bit in the first MSR and not the
block pointer too, we miss that other information.

The thing is, MC4_MISC0[BlkPtr] is not predicated on
MCi_STATUS[MiscV] or MC4_MISC0[Valid] and should be checked
prior to iterating over the MCI_MISCj thresholding group,
irrespective of the MC4_MISC0[Valid] setting.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-10-11 11:04:36 +02:00
Linus Torvalds 8ea3f0afb2 Merge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: SAMSUNG: Add a workaround for get_clock() for serial driver
  ARM: S5P: Bug fix on errors of build with CONFIG_PREEMPT_NONE
  ARM: SAMSUNG: Fix build warnings because of unused codes
2010-10-09 11:43:18 -07:00
Andi Kleen e92ba6d2ec Define _addr_lsb in siginfo_t for mips
Define an _addr_lsb field in the mips and ia64 siginfo_ts, following
the asm-generic version. This just puts the field over padding.

This fixes a compilation problem introduced with a337fda.

Cc: ralf@linux-mips.org
Cc: tony.luck@intel.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-09 11:42:37 -07:00
Eric Bénard 4793ca4028 cpuimx27: fix i2c bus selection
Recent clean of i.MX devices registration changed the i2C bus number
selected for our platform (Freescale start peripheral ID at 1, kernel
now start it at 0 so i.MX27's i2c 1 is kernel's i2c 0).
Without this fix, i2c is unusable on this platform.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-10-08 15:08:41 +02:00
Eric Bénard 22377ec5ea cpuimx27: fix compile when ULPI is selected
without this patch we get :
arch/arm/mach-imx/built-in.o: In function `eukrea_cpuimx27_init':
eukrea_mbimx27-baseboard.c:(.init.text+0x44c): undefined reference to `mxc_ulpi_access_ops'

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-10-08 15:08:41 +02:00
Tony Lindgren c0bb5862a9 ARM: 6435/1: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9
Commit 14eff18126 added proper
detection for ARM11MPCore/Cortex-A9 instead of detecting them
as ARMv7. However, it was missing the HWCAP_TLS flags.

HWCAP_TLS is needed if support for earlier ARMv6 is compiled
into the same kernel. Without HWCAP_TLS flags the userspace
won't work unless nosmp is specified:

Kernel panic - not syncing: Attempted to kill init!
CPU0: stopping
<c005d5e4>] (unwind_backtrace+0x0/0xec) from [<c004c2f8>] (do_IPI+0xfc/0x184)
<c004c2f8>] (do_IPI+0xfc/0x184) from [<c03f25bc>] (__irq_svc+0x9c/0x160)
Exception stack(0xc0565f80 to 0xc0565fc8)
5f80: 00000001 c05772a0 00000000 00003a61 c0564000 c05cf500 c003603c c0578600
5fa0: 80033ef0 410fc091 0000001f 00000000 00000000 c0565fc8 c00b91f8 c0057cb4
5fc0: 20000013 ffffffff
[<c03f25bc>] (__irq_svc+0x9c/0x160) from [<c0057cb4>] (default_idle+0x30/0x38)
[<c0057cb4>] (default_idle+0x30/0x38) from [<c005829c>] (cpu_idle+0x9c/0xf8)
[<c005829c>] (cpu_idle+0x9c/0xf8) from [<c0008d48>] (start_kernel+0x2a4/0x300)
[<c0008d48>] (start_kernel+0x2a4/0x300) from [<80008084>] (0x80008084)

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-08 10:01:23 +01:00
Anders Larsen 5c189208b6 ARM: 6436/1: AT91: Fix power-saving in idle-mode on 926T processors
According to Atmel, their 926T processors (AT91 post RM9200) requires
'Wait for Interrupt' mode be entered right after disabling the processor clock
in order to minimise current consumption when idle, so do both provided we're
not running on a 920T (an RM9200).

Furthermore, get rid of the #ifndef CONFIG_DEBUG_KERNEL, since arch_idle()
can be turned off completely with the kernel parameter 'nohlt'.

Cc: Andrew Victor <avictor.za@gmail.com>
Signed-off-by: Anders Larsen <al@alarsen.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-08 10:00:36 +01:00
Jin Dongming b62be8ea9d x86, mce, therm_throt.c: Fix missing curly braces in error handling logic
When the feature PTS is not supported by CPU, the sysfile
package_power_limit_count for package should not be
generated.

This patch is used for fixing missing { and }.

The patch is not complete as there are other error handling
problems in this function - but that can wait until the
merge window.

Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
Reviewed-by: Fenghua Yu <fenghua.yu@initel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Brown Len <len.brown@intel.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: lm-sensors@lm-sensors.org <lm-sensors@lm-sensors.org>
LKML-Reference: <4C7625D1.4060201@np.css.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-10-08 10:29:20 +02:00
Marek Szyprowski 7cf4b482f0 ARM: SAMSUNG: Add a workaround for get_clock() for serial driver
Serial drivers call get_clock() very early, before platform bus
has been set up, this requires a special check to let them get
a proper clock. Without this patch, a serial console is broken
on S5PV310 and S5PC210 boards.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: fix coding-style]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
2010-10-08 13:50:18 +09:00
SeungChull Suh 4341f9b38f ARM: S5P: Bug fix on errors of build with CONFIG_PREEMPT_NONE
This patch adds header <linux/sched.h> into the below files for build with
CONFIG_PREEMPT_NONE.

arch/arm/mach-s5p6440/cpu.c
arch/arm/mach-s5p6442/cpu.c
arch/arm/mach-s5pc100/cpu.c
arch/arm/mach-s5pv210/cpu.c

Following is error message of in case of s5pv210_defconfig with CONFIG_PREEMPT_NONE.

arch/arm/mach-s5pv210/cpu.c:91: error: implicit declaration of function 'need_resched'

Signed-off-by: SeungChull Suh <sc.suh@samsung.com>
[kgene.kim@samsung.com: removed mach-s5p64x0/cpu.c]
[kgene.kim@samsung.com: added fix mach-s5p6440/cpu.c]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-10-08 13:50:17 +09:00
Kukjin Kim 1a95036465 ARM: SAMSUNG: Fix build warnings because of unused codes
This patch removes following unused codes for removing build warnings.

arch/arm/plat-samsung/adc.c:438: warning: unused variable 'flags'
arch/arm/mach-s5pv210/clock.c:176: warning: 's5pv210_clk_ip4_ctrl' defined but not used

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-10-08 13:50:17 +09:00
Linus Torvalds 81c20b96e5 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Octeon: Place cnmips_cu2_setup in __init memory.
  MIPS: Don't place cu2 notifiers in __cpuinitdata
  MIPS: Calculate VMLINUZ_LOAD_ADDRESS based on the length of vmlinux.bin
  MIPS: Alchemy: Resolve prom section mismatches
  MIPS: Fix syscall 64 bit number comments.
  MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls.
  MIPS: TX49xx: Rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN
  MIPS: N32: Fix getdents64 syscall for n32
  MIPS: Remove pr_<level> uses of KERN_<level>
  MIPS: PNX8550: Sort out machine halt, restart and powerdown functions.
  MIPS: GIC: Remove dependencies from Malta files.
  MIPS: Kconfig: Fix and clarify kconfig help text for VSMP and SMTC.
  MIPS: DMA: Fix computation of DMA flags from device's coherent_dma_mask.
  MIPS: Audit: Fix hang in entry.S.
  MIPS: Document why RELOC_HIDE is there.
  MIPS: Octeon: Determine if helper needs to be built
  MIPS: Use generic atomic64 for 32-bit kernels
  MIPS: RM7000: Symbol should be static
  MIPS: kspd: Adjust confusing if indentation
  MIPS: Fix a typo.
2010-10-06 13:27:19 -07:00
Linus Torvalds 34984f54b7 Merge branch 'v2.6.36-rc6-urgent-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm
* 'v2.6.36-rc6-urgent-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm:
  xen: do not initialize PV timers on HVM if !xen_have_vector_callback
  xen: do not set xenstored_ready before xenbus_probe on hvm
2010-10-06 09:51:28 -07:00
Stephen Rothwell 7c6d45e665 powerpc: remove unused variable
Since powerpc uses -Werror on arch powerpc, the build was broken like
this:

  cc1: warnings being treated as errors
  arch/powerpc/kernel/module.c: In function 'module_finalize':
  arch/powerpc/kernel/module.c:66: error: unused variable 'err'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-05 17:27:54 -07:00
Linus Torvalds 39c12be86a Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf trace scripting: Fix extern struct definitions
  perf ui hist browser: Fix segfault on 'a' for annotate
  perf tools: Fix build breakage
  perf, x86: Handle in flight NMIs on P4 platform
  oprofile, ARM: Release resources on failure
  oprofile: Add Support for Intel CPU Family 6 / Model 29
2010-10-05 11:57:37 -07:00
Linus Torvalds 5336377d62 modules: Fix module_bug_list list corruption race
With all the recent module loading cleanups, we've minimized the code
that sits under module_mutex, fixing various deadlocks and making it
possible to do most of the module loading in parallel.

However, that whole conversion totally missed the rather obscure code
that adds a new module to the list for BUG() handling.  That code was
doubly obscure because (a) the code itself lives in lib/bugs.c (for
dubious reasons) and (b) it gets called from the architecture-specific
"module_finalize()" rather than from generic code.

Calling it from arch-specific code makes no sense what-so-ever to begin
with, and is now actively wrong since that code isn't protected by the
module loading lock any more.

So this commit moves the "module_bug_{finalize,cleanup}()" calls away
from the arch-specific code, and into the generic code - and in the
process protects it with the module_mutex so that the list operations
are now safe.

Future fixups:
 - move the module list handling code into kernel/module.c where it
   belongs.
 - get rid of 'module_bug_list' and just use the regular list of modules
   (called 'modules' - imagine that) that we already create and maintain
   for other reasons.

Reported-and-tested-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-05 11:29:27 -07:00
Hari Kanigeri 0fa035e523 omap: iommu-load cam register before flushing the entry
The flush_iotlb_page is not loading the cam register before flushing
the cam entry. This causes wrong entry to be flushed out from the TLB, and
if the entry happens to be a locked TLB entry it would lead to MMU faults.

The fix is to load the cam register with the address to be flushed before
flushing the TLB entry.

Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-10-05 10:22:13 -07:00
Stefano Stabellini 31e7e931cd xen: do not initialize PV timers on HVM if !xen_have_vector_callback
if !xen_have_vector_callback do not initialize PV timer unconditionally
because we still don't know how many cpus are available and if there is
more than one we won't be able to receive the timer interrupts on
cpu > 0.

This patch fixes an hang at boot when Xen does not support vector
callbacks and the guest has multiple vcpus.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
2010-10-05 13:39:23 +01:00