Commit graph

189390 commits

Author SHA1 Message Date
Linus Torvalds
24b99d1576 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  Freezer: Fix buggy resume test for tasks frozen with cgroup freezer
  Freezer: Only show the state of tasks refusing to freeze
2010-04-02 19:44:42 -07:00
Oleg Nesterov
6da8d866d0 tty: release_one_tty() forgets to put pids
release_one_tty(tty) can be called when tty still has a reference
to pgrp/session. In this case we leak the pid.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-02 19:44:09 -07:00
Linus Torvalds
483f64c430 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Add NOGET quirk for Quanta Pixart touchscreen
  HID: fix oops in gyration_event()
2010-04-02 08:18:02 -07:00
Linus Torvalds
bc53ba2918 Merge branch 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix up the SH-3 build for recent TLB changes.
  sh: export return_address() symbol.
  sh: Enable the mmu in start_secondary()
  sh: Fix FDPIC binary loader
  arch/sh/kernel: Use set_cpus_allowed_ptr
  sh: Update ecovec_defconfig
  USB gadget r8a66597-udc.c: duplicated include
  sh: update the TLB replacement counter for entry wiring.
2010-04-02 07:33:38 -07:00
Paul Mundt
be97d758e5 sh: Fix up the SH-3 build for recent TLB changes.
While the MMUCR.URB and ITLB/UTLB differentiation works fine for all SH-4
and later TLBs, these features are absent on SH-3. This splits out
local_flush_tlb_all() in to SH-4 and PTEAEX copies while restoring the
old SH-3 one, subsequently fixing up the build.

This will probably want some further reordering and tidying in the
future, but that's out of scope at present.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-02 16:13:27 +09:00
Paul Mundt
5dd6ef5050 sh: export return_address() symbol.
This is needed with some of the tracing code built as modules, so provide
the export.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-02 16:02:33 +09:00
Linus Torvalds
42be79e37e Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (76 commits)
  drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus.
  drm/radeon/kms: rs400/480 should set common registers.
  drm/radeon/kms: add sanity check to wptr.
  drm/radeon/kms/evergreen: get DP working
  drm/radeon/kms: add hw_i2c module option
  drm/radeon/kms: use new pre/post_xfer i2c bit algo hooks
  drm/radeon/kms: disable MSI on IGP chips
  drm/radeon/kms: display watermark updates (v2)
  drm/radeon/kms/dp: disable training pattern on the sink at the end of link training
  drm/radeon/kms: minor fixes for eDP with LCD* device tags (v2)
  drm/radeon/kms/dp: remove extraneous training complete call
  drm/radeon/kms/atom: minor fixes to transmitter setup
  drm/radeon/kms: Only restrict BO to visible VRAM size when pinning to VRAM.
  drm: fix build error when SYSRQ is disabled
  drm/radeon/kms: fix macbookpro connector quirk
  drm/radeon/r6xx/r7xx: further safe reg clean up
  drm/radeon: bump the UMS driver version for r6xx/r7xx const buffer support
  drm/radeon/kms: bump the version for r6xx/r7xx const buffer support
  drm/radeon/r6xx/r7xx: CS parser fixes
  drm/radeon/kms: fix some typos in r6xx/r7xx hpd setup
  ...

Fix up MSI-related conflicts in drivers/gpu/drm/radeon/radeon_irq_kms.c
2010-04-01 09:19:42 -07:00
Linus Torvalds
445c682b93 Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (35 commits)
  microblaze: Support word copying in copy_tofrom_user
  microblaze: Print early printk information to log buffer
  microblaze: head.S typo fix
  microblaze: Use MICROBLAZE_TLB_SIZE in asm code
  microblaze: Kconfig Fix - pci
  microblaze: Adding likely macros
  microblaze: Add .type and .size to ASM functions
  microblaze: Fix TLB macros
  microblaze: Use instruction with delay slot
  microblaze: Remove additional resr and rear loading
  microblaze: Change register usage for ESR and EAR
  microblaze: Prepare work for optimization in exception code
  microblaze: Add DEBUG option
  microblaze: Support systems without lmb bram
  microblaze: uaccess: Sync strlen, strnlen, copy_to/from_user
  microblaze: uaccess: Unify __copy_tofrom_user
  microblaze: uaccess: Move functions to generic location
  microblaze: uaccess: Fix put_user for noMMU
  microblaze: uaccess: Fix get_user macro for noMMU
  microblaze: uaccess: fix clear_user for noMMU kernel
  ...
2010-04-01 09:14:20 -07:00
Linus Torvalds
c7681f4637 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  eeepc-wmi: new driver for WMI based hotkeys on Eee PC laptops
  asus-laptop: fix warning in asus_handle_init
2010-04-01 09:13:57 -07:00
Oleg Nesterov
b95c35e76b oom: fix the unsafe usage of badness() in proc_oom_score()
proc_oom_score(task) has a reference to task_struct, but that is all.
If this task was already released before we take tasklist_lock

	- we can't use task->group_leader, it points to nowhere

	- it is not safe to call badness() even if this task is
	  ->group_leader, has_intersects_mems_allowed() assumes
	  it is safe to iterate over ->thread_group list.

	- even worse, badness() can hit ->signal == NULL

Add the pid_alive() check to ensure __unhash_process() was not called.

Also, use "task" instead of task->group_leader. badness() should return
the same result for any sub-thread. Currently this is not true, but
this should be changed anyway.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-01 08:50:21 -07:00
Michal Simek
ca3865bae5 microblaze: Support word copying in copy_tofrom_user
Word copying is used only for aligned addresses.
Here is space for improving to use any better copying technique.
Look at memcpy implementation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:25 +02:00
Michal Simek
6059b3cbeb microblaze: Print early printk information to log buffer
If early printk console is not enabled then all messages
are written to log buffer.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:25 +02:00
Michal Simek
3f21893586 microblaze: head.S typo fix
I forget to change register name in comments.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
0691c97d74 microblaze: Use MICROBLAZE_TLB_SIZE in asm code
TLB size was hardcoded in asm code. This patch brings ability
to change TLB size only in one place. (mmu.h).

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
9373dd6ab1 microblaze: Kconfig Fix - pci
I forget to remove pci Kconfig option.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
78ebfa884b microblaze: Adding likely macros
On the base on GCOV analytics is helpful to add likely/unlikely
macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
13851966da microblaze: Add .type and .size to ASM functions
Cachegrind analysis need this fix to be able to log asm functions.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
e84452dd9f microblaze: Fix TLB macros
To be able to do trace TLB operations.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:24 +02:00
Michal Simek
3765d6958d microblaze: Use instruction with delay slot
Sync labels.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
bd1637d63e microblaze: Remove additional resr and rear loading
RESR and REAR uses the same regs in whole file.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
b175bcfe31 microblaze: Change register usage for ESR and EAR
This change synchronize register usage in code.
ESR = R4
EAR = R3

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
7a6bbdc930 microblaze: Prepare work for optimization in exception code
Any sync branch must follow mts instructions not mfs.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
708e7153d6 microblaze: Add DEBUG option
Disable debug option in asm code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
ee68f1745e microblaze: Support systems without lmb bram
When the system has no lmb bram, main memory should be start from
zero because of microblaze vectors.

DTS fragment could look like:
	DDR2_SDRAM: memory@0 {
		device_type = "memory";
		reg = < 0x0 0x10000000 >;
	} ;

Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused
that kernel physical start address will be zero. On reset vector place
will be jump to 0x100 and on 0x100 starts kernel text.

You have to solve how to load the kernel before cpu starts.
Tested with XMD.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
89ae9753ae microblaze: uaccess: Sync strlen, strnlen, copy_to/from_user
Last sync.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:23 +02:00
Michal Simek
94804a9b3d microblaze: uaccess: Unify __copy_tofrom_user
Move to generic location.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:22 +02:00
Michal Simek
cca79120c2 microblaze: uaccess: Move functions to generic location
noMMU and MMU use them.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:22 +02:00
Michal Simek
ef4e277b5d microblaze: uaccess: Fix put_user for noMMU
Here is small regression on dhrystone tests and I think
that on all benchmarking tests. It is due to better checking
mechanism in put_user macro

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:22 +02:00
Michal Simek
3a6d77245e microblaze: uaccess: Fix get_user macro for noMMU
Use unified version.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:22 +02:00
Michal Simek
527bdb52d5 microblaze: uaccess: fix clear_user for noMMU kernel
Previous patches fixed only MMU version and this is the first
patch for noMMU kernel

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:21 +02:00
Michal Simek
40e11e3380 microblaze: uaccess: Fix strncpy_from_user function
Generic implementation for noMMU and MMU version

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:21 +02:00
Michal Simek
4270690bd4 microblaze: uaccess: fix copy_from_user macro
copy_from_user macro also use copy_tofrom_user function

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:21 +02:00
Michal Simek
cc5a428b7a microblaze: uaccess: copy_to_user unification
noMMU and MMU kernel will use copy copy_tofrom_user
asm implementation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
0dcb409de7 microblaze: uaccess: sync put/get/clear_user macros
Add macro description and resort.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
8b651aa4a7 microblaze: uaccess: fix put_user and get_user macros
Use FIXUP macros and resort them.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
c77a9c4bb7 microblaze: uaccess: fix __get_user_asm macro
It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
40b1156db0 microblaze: uaccess: fix clean user macro
This is the first patch which does uaccess unification.
I choosed to do several patches to be able to use bisect
in future if any fault happens.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
60a729f7bb microblaze: move noMMU __range_ok function to uaccess.h
The same noMMU and MMU functions should be placed in
one file.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:20 +02:00
Michal Simek
357bc3c928 microblaze: Move exception_table_entry upward
Just sort to be able remove whole block.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Michal Simek
40db083433 microblaze: Remove segment.h
I would like to use asm-generic uaccess.h where are segment
macros defined. This is just first step.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Michal Simek
4009819cf9 microblaze: Remove memset in free_init_pages
We don't need to do it.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Arun Bhanu
6fa114e0f1 microblaze: Makefile cleanups
If CONFIG_INITRAMFS_SOURCE is set, "scripts/gen_initramfs_list.sh"
checks if the cpio image exists. Remove the duplicate check from the
Makefile.

Remove the "clean-kernel" variable which is unused in the Makefile and
is not used by the Kbuild.

Signed-off-by: Arun Bhanu <arun@bhanu.net>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Arun Bhanu
8a8804f1ab microblaze: Fix Makefile to delete build generated files
'make clean' does not to delete the following build generated file:
	arch/microblaze/boot/linux.bin.ub

'make mrproper' does not to delete the following build generated files:
	arch/microblaze/boot/simpleImage.*

Fix the Makefile to delete these build generated files.

See [1] for a discussion on why simpleImage.* files are deleted with 'make
mrproper' and not with 'make clean'.
	[1] http://lkml.org/lkml/2010/3/12/96

Signed-off-by: Arun Bhanu <arun@bhanu.net>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Arun Bhanu
699d17bc14 microblaze: Add a missing single quote to make 'make help' happy
'make ARCH=microblaze help' fails with the following error due to a
missing single quote.

/bin/sh: -c: line 0: unexpected EOF while looking for matching `''
/bin/sh: -c: line 1: syntax error: unexpected end of file
make: *** [help] Error 2

Signed-off-by: Arun Bhanu <arun@bhanu.net>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:19 +02:00
Steven J. Magnani
0c4ec16b86 microblaze: Fix "kstack=" parsing
The "kstack=" command line parameter is not parsed correctly.
All proper values are interpreted as zero.

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-04-01 08:38:18 +02:00
Dave Airlie
d668046c13 drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus.
Some GPUs have an APM/ACPI PM mode selection switch and some BIOSes
set this to APM. We really want this in ACPI mode for Linux.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01 12:50:46 +10:00
Dave Airlie
08a370fa75 drm/radeon/kms: rs400/480 should set common registers.
These GPUs should be setting these registers up also.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01 12:50:28 +10:00
Dave Airlie
9e5786bd14 drm/radeon/kms: add sanity check to wptr.
If we resume in a bad way, we'll get 0xffffffff in wptr, and then
oops with no console. This just adds a sanity check so that we can
avoid the oops and hopefully get more details out of people's systems.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01 12:50:19 +10:00
Alex Deucher
fb668c2fed drm/radeon/kms/evergreen: get DP working
Need to enable the VID stream after link training

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-04-01 12:50:07 +10:00
Yong Wang
ee027e4aed eeepc-wmi: new driver for WMI based hotkeys on Eee PC laptops
Add a WMI driver for Eee PC laptops. Currently it only supports hotkeys.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
2010-03-31 17:19:07 -04:00