platform/kernel/linux-3.10.git
11 years agopwm: Constify OF match tables
Thierry Reding [Thu, 18 Apr 2013 08:04:14 +0000 (10:04 +0200)]
pwm: Constify OF match tables

A few drivers already annotate this properly. Make the same change for
all other OF supporting drivers.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
11 years agopwm: pwm-tiehrpwm: Update device-tree binding document
Philip Avinash [Mon, 25 Mar 2013 07:04:53 +0000 (12:34 +0530)]
pwm: pwm-tiehrpwm: Update device-tree binding document

Update binding document of pwm-tiehrpwm to reflect the usage of similar
modules in da850 and am3xx SOCs.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pwm-tiecap: Update device-tree binding document
Philip Avinash [Mon, 25 Mar 2013 07:04:52 +0000 (12:34 +0530)]
pwm: pwm-tiecap: Update device-tree binding document

Update binding document of pwm-tiecap to reflect the usage of similar
modules in da850 and am3xx SOCs.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: puv3: Remove unused enabled filed from struct puv3_pwm_chip
Axel Lin [Sun, 31 Mar 2013 15:01:11 +0000 (23:01 +0800)]
pwm: puv3: Remove unused enabled filed from struct puv3_pwm_chip

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pxa: Remove PWM_ID_BASE macro
Axel Lin [Mon, 1 Apr 2013 07:41:22 +0000 (15:41 +0800)]
pwm: pxa: Remove PWM_ID_BASE macro

PWM_ID_BASE() is not used after convert to PWM framework, remove it.
Also update driver_data field of struct platform_device_id accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: spear: Remove unused *dev from struct spear_pwm_chip
Axel Lin [Mon, 1 Apr 2013 04:29:48 +0000 (12:29 +0800)]
pwm: spear: Remove unused *dev from struct spear_pwm_chip

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: mxs: Remove unused *dev from struct mxs_pwm_chip
Axel Lin [Mon, 1 Apr 2013 02:48:13 +0000 (10:48 +0800)]
pwm: mxs: Remove unused *dev from struct mxs_pwm_chip

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: twl: Return proper error if twl6030_pwm_enable() fails
Axel Lin [Sun, 31 Mar 2013 15:07:30 +0000 (23:07 +0800)]
pwm: twl: Return proper error if twl6030_pwm_enable() fails

Return proper error instead of 0 if twl6030_pwm_enable() fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pxa: Remove clk_enabled field from struct pxa_pwm_chip
Axel Lin [Sun, 31 Mar 2013 15:04:31 +0000 (23:04 +0800)]
pwm: pxa: Remove clk_enabled field from struct pxa_pwm_chip

clk_enable/clk_disable maintain an enable_count, clk_prepare and clk_unprepare
also maintain a prepare_count. These APIs will do prepare/enable when the first
user calling these APIs, and do disable/unprepare when the corresponding counter
reach 0. Thus We don't need to maintain a clk_enabled counter here.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: imx: Remove enabled field from struct imx_chip
Axel Lin [Sun, 31 Mar 2013 14:59:47 +0000 (22:59 +0800)]
pwm: imx: Remove enabled field from struct imx_chip

We can test PWMF_ENABLED bit to know if pwm is enabled or not.
Thus remove enabled field from struct imx_chip.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: twl: Add .owner to struct pwm_ops
Axel Lin [Sun, 31 Mar 2013 03:17:05 +0000 (11:17 +0800)]
pwm: twl: Add .owner to struct pwm_ops

Add missing .owner of struct pwm_ops. This prevents the module from being
removed from underneath its users.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: twl-led: Add .owner to struct pwm_ops
Axel Lin [Sun, 31 Mar 2013 03:16:14 +0000 (11:16 +0800)]
pwm: twl-led: Add .owner to struct pwm_ops

Add missing .owner of struct pwm_ops. This prevents the module from being
removed from underneath its users.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: atmel-tcb: Add .owner to struct pwm_ops
Axel Lin [Sun, 31 Mar 2013 03:15:15 +0000 (11:15 +0800)]
pwm: atmel-tcb: Add .owner to struct pwm_ops

Add missing .owner of struct pwm_ops. This prevents the module from being
removed from underneath its users.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: ab8500: Add .owner to struct pwm_ops
Axel Lin [Sun, 31 Mar 2013 03:14:02 +0000 (11:14 +0800)]
pwm: ab8500: Add .owner to struct pwm_ops

Add missing .owner of struct pwm_ops. This prevents the module from being
removed from underneath its users.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: spear: Fix checking return value of clk_enable() and clk_prepare()
Axel Lin [Sat, 30 Mar 2013 12:43:22 +0000 (20:43 +0800)]
pwm: spear: Fix checking return value of clk_enable() and clk_prepare()

The logic to check return value of clk_enable() and clk_prepare() is reversed,
fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: stable@vger.kernel.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: tiehrpwm: Staticize non-exported symbols
Axel Lin [Tue, 26 Mar 2013 14:55:57 +0000 (22:55 +0800)]
pwm: tiehrpwm: Staticize non-exported symbols

Both ehrpwm_pwm_save_context() and ehrpwm_pwm_restore_context() are only used in
this file, make them static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: tiecap: Staticize non-exported symbols
Axel Lin [Tue, 26 Mar 2013 14:54:58 +0000 (22:54 +0800)]
pwm: tiecap: Staticize non-exported symbols

Both ecap_pwm_save_context() and ecap_pwm_restore_context() are only used in
this file, make them static.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: ab8500: Fix trivial typo in dev_err message
Axel Lin [Tue, 26 Mar 2013 14:34:50 +0000 (22:34 +0800)]
pwm: ab8500: Fix trivial typo in dev_err message

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: davinci: Add Kconfig support for ECAP & EHRPWM devices
Philip Avinash [Wed, 20 Mar 2013 06:39:24 +0000 (12:09 +0530)]
pwm: davinci: Add Kconfig support for ECAP & EHRPWM devices

Add EHRPWM and ECAP support build support for DAVINCI_DA8XX platforms.

Also, since DAVINCI platforms doesn't support TI-PWM-Subsystem module,
remove the select option for CONFIG_PWM_TIPWMSS.

Also, update CONFIG_PWM_TIPWMSS compiler directive appropriately in
pwm-tipwmss.h to fix the below compiler error upon removal of
CONFIG_PWM_TIPWMSS for DAVINCI platforms.

drivers/pwm/pwm-tiecap.c: In function 'ecap_pwm_probe':
drivers/pwm/pwm-tiecap.c:263:4: error: 'PWMSS_ECAPCLK_EN' undeclared
(first use in this function)
drivers/pwm/pwm-tiecap.c:263:4: note: each undeclared identifier
is reported only once for each function it appears in
drivers/pwm/pwm-tiecap.c:264:17: error: 'PWMSS_ECAPCLK_EN_ACK'
undeclared (first use in this function)
drivers/pwm/pwm-tiecap.c: In function 'ecap_pwm_remove':
drivers/pwm/pwm-tiecap.c:291:49: error: 'PWMSS_ECAPCLK_STOP_REQ'
undeclared (first use in this function)
make[2]: *** [drivers/pwm/pwm-tiecap.o] Error 1
make[1]: *** [drivers/pwm] Error 2
make: *** [drivers] Error 2

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pwm-tiehrpwm: add CONFIG_PM_SLEEP to suspend/resume functions
Jingoo Han [Mon, 11 Mar 2013 02:14:41 +0000 (11:14 +0900)]
pwm: pwm-tiehrpwm: add CONFIG_PM_SLEEP to suspend/resume functions

This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/pwm/pwm-tiehrpwm.c:562:12: warning: 'ehrpwm_pwm_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiehrpwm.c:580:12: warning: 'ehrpwm_pwm_resume' defined but not used [-Wunused-function

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pwm-tipwmss: add CONFIG_PM_SLEEP to suspend/resume functions
Jingoo Han [Mon, 11 Mar 2013 02:14:16 +0000 (11:14 +0900)]
pwm: pwm-tipwmss: add CONFIG_PM_SLEEP to suspend/resume functions

This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/pwm/pwm-tipwmss.c:104:12: warning: 'pwmss_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tipwmss.c:113:12: warning: 'pwmss_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: pwm-tiecap: add CONFIG_PM_SLEEP to suspend/resume functions
Jingoo Han [Mon, 11 Mar 2013 02:12:58 +0000 (11:12 +0900)]
pwm: pwm-tiecap: add CONFIG_PM_SLEEP to suspend/resume functions

This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/pwm/pwm-tiecap.c:314:12: warning: 'ecap_pwm_suspend' defined but not used [-Wunused-function]
drivers/pwm/pwm-tiecap.c:328:12: warning: 'ecap_pwm_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: samsung: convert s3c_pwm to dev_pm_ops
Jingoo Han [Fri, 8 Mar 2013 04:03:31 +0000 (13:03 +0900)]
pwm: samsung: convert s3c_pwm to dev_pm_ops

Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm: ab8500: use devm_kzalloc()
Jingoo Han [Fri, 8 Mar 2013 03:45:58 +0000 (12:45 +0900)]
pwm: ab8500: use devm_kzalloc()

Use devm_kzalloc() to make cleanup paths more simple.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agopwm_backlight: remove unnecessary ifdefs
Jingoo Han [Mon, 25 Feb 2013 08:15:47 +0000 (17:15 +0900)]
pwm_backlight: remove unnecessary ifdefs

When the macro such as SIMPLE_DEV_PM_OPS is used, there is
no need to use '#ifdef CONFIG_PM' to prevent build error. Thus,
this patch removes unnecessary ifdefs.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
11 years agoLinux 3.9-rc1 v3.9-rc1
Linus Torvalds [Sun, 3 Mar 2013 23:11:05 +0000 (15:11 -0800)]
Linux 3.9-rc1

11 years agoMerge tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells...
Linus Torvalds [Sun, 3 Mar 2013 22:24:59 +0000 (14:24 -0800)]
Merge tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells/linux-headers

Pull fbdev UAPI disintegration from David Howells:
 "You'll be glad to here that the end is nigh for the UAPI patches.
  Only the fbdev/framebuffer piece remains now that the SCSI stuff has
  gone in.

  Here are the UAPI disintegration bits for the fbdev drivers.  It
  appears that Florian hasn't had time to deal with my patch, but back
  in December he did say he didn't mind if I pushed it forward."

Yay.  No more uapi movement.  And hopefully no more big header file
cleanups coming up either, it just tends to be very painful.

* tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/video

11 years agoMerge tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 3 Mar 2013 22:22:53 +0000 (14:22 -0800)]
Merge tag 'stable/for-linus-3.9-rc1-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 - Update the Xen ACPI memory and CPU hotplug locking mechanism.
 - Fix PAT issues wherein various applications would not start
 - Fix handling of multiple MSI as AHCI now does it.
 - Fix ARM compile failures.

* tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xenbus: fix compile failure on ARM with Xen enabled
  xen/pci: We don't do multiple MSI's.
  xen/pat: Disable PAT using pat_enabled value.
  xen/acpi: xen cpu hotplug minor updates
  xen/acpi: xen memory hotplug minor updates

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 3 Mar 2013 21:23:02 +0000 (13:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull  more VFS bits from Al Viro:
 "Unfortunately, it looks like xattr series will have to wait until the
  next cycle ;-/

  This pile contains 9p cleanups and fixes (races in v9fs_fid_add()
  etc), fixup for nommu breakage in shmem.c, several cleanups and a bit
  more file_inode() work"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  constify path_get/path_put and fs_struct.c stuff
  fix nommu breakage in shmem.c
  cache the value of file_inode() in struct file
  9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry
  9p: make sure ->lookup() adds fid to the right dentry
  9p: untangle ->lookup() a bit
  9p: double iput() in ->lookup() if d_materialise_unique() fails
  9p: v9fs_fid_add() can't fail now
  v9fs: get rid of v9fs_dentry
  9p: turn fid->dlist into hlist
  9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine
  more file_inode() open-coded instances
  selinux: opened file can't have NULL or negative ->f_path.dentry

(In the meantime, the hlist traversal macros have changed, so this
required a semantic conflict fixup for the newly hlistified fid->dlist)

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 3 Mar 2013 21:13:20 +0000 (13:13 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixup from Chris Mason:
 "Geert and James both sent this one in, sorry guys"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs/raid56: Add missing #include <linux/vmalloc.h>

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sun, 3 Mar 2013 20:58:43 +0000 (12:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull second set of s390 patches from Martin Schwidefsky:
 "The main part of this merge are Heikos uaccess patches.  Together with
  commit 09884964335e ("mm: do not grow the stack vma just because of an
  overrun on preceding vma") the user string access is hopefully fixed
  for good.

  In addition some bug fixes and two cleanup patches."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/module: fix compile warning
  qdio: remove unused parameters
  s390/uaccess: fix kernel ds access for page table walk
  s390/uaccess: fix strncpy_from_user string length check
  input: disable i8042 PC Keyboard controller for s390
  s390/dis: Fix invalid array size
  s390/uaccess: remove pointless access_ok() checks
  s390/uaccess: fix strncpy_from_user/strnlen_user zero maxlen case
  s390/uaccess: shorten strncpy_from_user/strnlen_user
  s390/dasd: fix unresponsive device after all channel paths were lost
  s390/mm: ignore change bit for vmemmap
  s390/page table dumper: add support for change-recording override bit

11 years agoMerge branch 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 3 Mar 2013 20:57:38 +0000 (12:57 -0800)]
Merge branch 'fixes-for-3.9-latest' of git://git./linux/kernel/git/deller/parisc-linux

Pull second round of PARISC updates from Helge Deller:
 "The most important fix in this branch is the switch of io_setup,
  io_getevents and io_submit syscalls to use the available compat
  syscalls when running 32bit userspace on 64bit kernel.  Other than
  that it's mostly removal of compile warnings."

* 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix redefinition of SET_PERSONALITY
  parisc: do not install modules when installing kernel
  parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
  parisc: check return value of down_interruptible() in hp_sdc_rtc.c
  parisc: avoid unitialized variable warning in pa_memcpy()
  parisc: remove unused variable 'compat_val'
  parisc: switch to compat_functions of io_setup, io_getevents and io_submit
  parisc: select ARCH_WANT_FRAME_POINTERS

11 years agoMerge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan...
Linus Torvalds [Sun, 3 Mar 2013 20:06:09 +0000 (12:06 -0800)]
Merge tag 'metag-v3.9-rc1-v4' of git://git./linux/kernel/git/jhogan/metag

Pull new ImgTec Meta architecture from James Hogan:
 "This adds core architecture support for Imagination's Meta processor
  cores, followed by some later miscellaneous arch/metag cleanups and
  fixes which I kept separate to ease review:

   - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture
   - A few fixes all over, particularly for symbol prefixes
   - A few privilege protection fixes
   - Several cleanups (setup.c includes, split out a lot of
     metag_ksyms.c)
   - Fix some missing exports
   - Convert hugetlb to use vm_unmapped_area()
   - Copy device tree to non-init memory
   - Provide dma_get_sgtable()"

* tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits)
  metag: Provide dma_get_sgtable()
  metag: prom.h: remove declaration of metag_dt_memblock_reserve()
  metag: copy devicetree to non-init memory
  metag: cleanup metag_ksyms.c includes
  metag: move mm/init.c exports out of metag_ksyms.c
  metag: move usercopy.c exports out of metag_ksyms.c
  metag: move setup.c exports out of metag_ksyms.c
  metag: move kick.c exports out of metag_ksyms.c
  metag: move traps.c exports out of metag_ksyms.c
  metag: move irq enable out of irqflags.h on SMP
  genksyms: fix metag symbol prefix on crc symbols
  metag: hugetlb: convert to vm_unmapped_area()
  metag: export clear_page and copy_page
  metag: export metag_code_cache_flush_all
  metag: protect more non-MMU memory regions
  metag: make TXPRIVEXT bits explicit
  metag: kernel/setup.c: sort includes
  perf: Enable building perf tools for Meta
  metag: add boot time LNKGET/LNKSET check
  metag: add __init to metag_cache_probe()
  ...

11 years agoMerge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Sun, 3 Mar 2013 19:54:39 +0000 (11:54 -0800)]
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

Pull late ARM updates from Russell King:
 "Here is the late set of ARM updates for this merge window; in here is:

   - The ARM parts of the broadcast timer support, core parts merged
     through tglx's tree.  This was left over from the previous merge to
     allow the dependency on tglx's tree to be resolved.

   - A fix to the VFP code which shows up on Raspberry Pi's, as well as
     fixing the fallout from a previous commit in this area.

   - A number of smaller fixes scattered throughout the ARM tree"

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: Fix broken commit 0cc41e4a21d43 corrupting kernel messages
  ARM: fix scheduling while atomic warning in alignment handling code
  ARM: VFP: fix emulation of second VFP instruction
  ARM: 7656/1: uImage: Error out on build of multiplatform without LOADADDR
  ARM: 7640/1: memory: tegra_ahb_enable_smmu() depends on TEGRA_IOMMU_SMMU
  ARM: 7654/1: Preserve L_PTE_VALID in pte_modify()
  ARM: 7653/2: do not scale loops_per_jiffy when using a constant delay clock
  ARM: 7651/1: remove unused smp_timer_broadcast #define

11 years agoMerge tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 3 Mar 2013 18:25:47 +0000 (10:25 -0800)]
Merge tag 'char-misc-3.9-rc1' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc patch from Greg Kroah-Hartman:
 "Here is one remaining patch for 3.9-rc1.  It is for the hyper-v
  drivers, and had to wait until some other patches went in through the
  x86 tree."

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts

11 years agoMerge tag 'usb-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 3 Mar 2013 18:24:57 +0000 (10:24 -0800)]
Merge tag 'usb-3.9-rc1' of git://git./linux/kernel/git/gregkh/usb

Pull USB patch revert from Greg Kroah-Hartman:
 "Here is one remaining USB patch for 3.9-rc1, it reverts a 3.8 patch
  that has caused a lot of regressions for some VIA EHCI controllers."

* tag 'usb-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: EHCI: revert "remove ASS/PSS polling timeout"

11 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Sun, 3 Mar 2013 18:23:29 +0000 (10:23 -0800)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:
 "This contains:
   - fixes and improvements
   - devicetree bindings
   - conversion to watchdog generic framework of the following drivers:
        - booke_wdt
        - bcm47xx_wdt.c
        - at91sam9_wdt
   - Removal of old STMP3xxx driver
   - Addition of following new drivers:
        - new driver for STMP3xxx and i.MX23/28
        - Retu watchdog driver"

* git://www.linux-watchdog.org/linux-watchdog: (30 commits)
  watchdog: sp805_wdt depends on ARM
  watchdog: davinci_wdt: update to devm_* API
  watchdog: davinci_wdt: use devm managed clk get
  watchdog: at91rm9200: add DT support
  watchdog: add timeout-sec property binding
  watchdog: at91sam9_wdt: Convert to use the watchdog framework
  watchdog: omap_wdt: Add option nowayout
  watchdog: core: dt: add support for the timeout-sec dt property
  watchdog: bcm47xx_wdt.c: add hard timer
  watchdog: bcm47xx_wdt.c: rename wdt_time to timeout
  watchdog: bcm47xx_wdt.c: rename ops methods
  watchdog: bcm47xx_wdt.c: use platform device
  watchdog: bcm47xx_wdt.c: convert to watchdog core api
  watchdog: Convert BookE watchdog driver to watchdog infrastructure
  watchdog: s3c2410_wdt: Use devm_* functions
  watchdog: remove old STMP3xxx driver
  watchdog: add new driver for STMP3xxx and i.MX23/28
  rtc: stmp3xxx: add wdt-accessor function
  watchdog: introduce retu_wdt driver
  watchdog: intel_scu_watchdog: fix Kconfig dependency
  ...

11 years agoMerge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 3 Mar 2013 18:20:22 +0000 (10:20 -0800)]
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

Pull second set of slave-dmaengine updates from Vinod Koul:
 "Arnd's patch moves the dw_dmac to use generic DMA binding.  I agreed
  to merge this late as it will avoid the conflicts between trees.

  The second patch from Matt adding a dma_request_slave_channel_compat
  API was supposed to be picked up, but somehow never got picked up.
  Some patches dependent on this are already in -next :("

* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dw_dmac: move to generic DMA binding
  dmaengine: add dma_request_slave_channel_compat()

11 years agoMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Linus Torvalds [Sun, 3 Mar 2013 18:16:19 +0000 (10:16 -0800)]
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platform driver updates from Matthew Garrett:
 "Mostly relatively small updates, along with some hardware enablement
  for Sony hardware and a pile of updates to Google's Chromebook driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (49 commits)
  ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it
  ideapad: depends on backlight subsystem and update comment
  Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names
  Platform: x86: chromeos_laptop - Add isl light sensor for Pixel
  Platform: x86: chromeos_laptop - Add a more general add_i2c_device
  Platform: x86: chromeos_laptop - Add Pixel Touchscreen
  Platform: x86: chromeos_laptop - Add support for probing devices
  Platform: x86: chromeos_laptop - Add Pixel Trackpad
  hp-wmi: fix handling of platform device
  sony-laptop: leak in error handling sony_nc_lid_resume_setup()
  hp-wmi: Add support for SMBus hotkeys
  asus-wmi: Fix unused function build warning
  acer-wmi: avoid the warning of 'devices' may be used uninitialized
  drivers/platform/x86/thinkpad_acpi.c: Handle HKEY event 0x6040
  Platform: x86: chromeos_laptop - Add HP Pavilion 14
  Platform: x86: chromeos_laptop - Add Taos tsl2583 device
  Platform: x86: chromeos_laptop - Add Taos tsl2563 device
  Platform: x86: chromeos_laptop - Add Acer C7 trackpad
  Platform: x86: chromeos_laptop - Rename setup_lumpy_tp to setup_cyapa_smbus_tp
  asus-laptop: always report brightness key events
  ...

11 years agobtrfs/raid56: Add missing #include <linux/vmalloc.h>
Geert Uytterhoeven [Sun, 3 Mar 2013 11:44:41 +0000 (04:44 -0700)]
btrfs/raid56: Add missing #include <linux/vmalloc.h>

tilegx_defconfig:

fs/btrfs/raid56.c: In function 'btrfs_alloc_stripe_hash_table':
fs/btrfs/raid56.c:206:3: error: implicit declaration of function 'vzalloc' [-Werror=implicit-function-declaration]
fs/btrfs/raid56.c:206:9: warning: assignment makes pointer from integer without a cast [enabled by default]
fs/btrfs/raid56.c:226:4: error: implicit declaration of function 'vfree' [-Werror=implicit-function-declaration]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
11 years agoMerge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Sun, 3 Mar 2013 03:33:21 +0000 (19:33 -0800)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 bug fixes from Ted Ts'o:
 "Various bug fixes for ext4.  The most important is a fix for the new
  extent cache's slab shrinker which can cause significant, user-visible
  pauses when the system is under memory pressure."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: enable quotas before orphan cleanup
  ext4: don't allow quota mount options when quota feature enabled
  ext4: fix a warning from sparse check for ext4_dir_llseek
  ext4: convert number of blocks to clusters properly
  ext4: fix possible memory leak in ext4_remount()
  jbd2: fix ERR_PTR dereference in jbd2__journal_start
  ext4: use percpu counter for extent cache count
  ext4: optimize ext4_es_shrink()

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Linus Torvalds [Sun, 3 Mar 2013 03:32:06 +0000 (19:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/signal

Pull sigprocmask compat fix from Al Viro:
 "generic compat_sys_rt_sigprocmask() had a very dumb braino; I'd spent
  quite a while staring at the offending commit before finally managing
  to spot the idiocy ;-/"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  fix compat_sys_rt_sigprocmask()

11 years agofix compat_sys_rt_sigprocmask()
Al Viro [Sun, 3 Mar 2013 01:39:15 +0000 (20:39 -0500)]
fix compat_sys_rt_sigprocmask()

Converting bitmask to 32bit granularity is fine, but we'd better
_do_ something with the result.  Such as "copy it to userland"...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
11 years agoMerge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Sun, 3 Mar 2013 00:46:07 +0000 (16:46 -0800)]
Merge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "We've just concluded another Connectathon interoperability testing
  week, and so here are the fixes for the bugs that were discovered:

   - Don't allow NFS silly-renamed files to be deleted
   - Don't start the retransmission timer when out of socket space
   - Fix a couple of pnfs-related Oopses.
   - Fix one more NFSv4 state recovery deadlock
   - Don't loop forever when LAYOUTGET returns NFS4ERR_LAYOUTTRYLATER"

* tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: One line comment fix
  NFSv4.1: LAYOUTGET EDELAY loops timeout to the MDS
  SUNRPC: add call to get configured timeout
  PNFS: set the default DS timeout to 60 seconds
  NFSv4: Fix another open/open_recovery deadlock
  nfs: don't allow nfs_find_actor to match inodes of the wrong type
  NFSv4.1: Hold reference to layout hdr in layoutget
  pnfs: fix resend_to_mds for directio
  SUNRPC: Don't start the retransmission timer when out of socket space
  NFS: Don't allow NFS silly-renamed files to be deleted, no signal

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 3 Mar 2013 00:41:54 +0000 (16:41 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs update from Chris Mason:
 "The biggest feature in the pull is the new (and still experimental)
  raid56 code that David Woodhouse started long ago.  I'm still working
  on the parity logging setup that will avoid inconsistent parity after
  a crash, so this is only for testing right now.  But, I'd really like
  to get it out to a broader audience to hammer out any performance
  issues or other problems.

  scrub does not yet correct errors on raid5/6 either.

  Josef has another pass at fsync performance.  The big change here is
  to combine waiting for metadata with waiting for data, which is a big
  latency win.  It is also step one toward using atomics from the
  hardware during a commit.

  Mark Fasheh has a new way to use btrfs send/receive to send only the
  metadata changes.  SUSE is using this to make snapper more efficient
  at finding changes between snapshosts.

  Snapshot-aware defrag is also included.

  Otherwise we have a large number of fixes and cleanups.  Eric Sandeen
  wins the award for removing the most lines, and I'm hoping we steal
  this idea from XFS over and over again."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (118 commits)
  btrfs: fixup/remove module.h usage as required
  Btrfs: delete inline extents when we find them during logging
  btrfs: try harder to allocate raid56 stripe cache
  Btrfs: cleanup to make the function btrfs_delalloc_reserve_metadata more logic
  Btrfs: don't call btrfs_qgroup_free if just btrfs_qgroup_reserve fails
  Btrfs: remove reduplicate check about root in the function btrfs_clean_quota_tree
  Btrfs: return ENOMEM rather than use BUG_ON when btrfs_alloc_path fails
  Btrfs: fix missing deleted items in btrfs_clean_quota_tree
  btrfs: use only inline_pages from extent buffer
  Btrfs: fix wrong reserved space when deleting a snapshot/subvolume
  Btrfs: fix wrong reserved space in qgroup during snap/subv creation
  Btrfs: remove unnecessary dget_parent/dput when creating the pending snapshot
  btrfs: remove a printk from scan_one_device
  Btrfs: fix NULL pointer after aborting a transaction
  Btrfs: fix memory leak of log roots
  Btrfs: copy everything if we've created an inline extent
  btrfs: cleanup for open-coded alignment
  Btrfs: do not change inode flags in rename
  Btrfs: use reserved space for creating a snapshot
  clear chunk_alloc flag on retryable failure
  ...

11 years agoMerge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd
Linus Torvalds [Sun, 3 Mar 2013 00:33:54 +0000 (16:33 -0800)]
Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd

Pull MTD update from David Woodhouse:
 "Fairly unexciting MTD merge for 3.9:

   - misc clean-ups in the MTD command-line partitioning parser
     (cmdlinepart)
   - add flash locking support for STmicro chips serial flash chips, as
     well as for CFI command set 2 chips.
   - new driver for the ELM error correction HW module found in various
     TI chips, enable the OMAP NAND driver to use the ELM HW error
     correction
   - added number of new serial flash IDs
   - various fixes and improvements in the gpmi NAND driver
   - bcm47xx NAND driver improvements
   - make the mtdpart module actually removable"

* tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits)
  mtd: map: BUG() in non handled cases
  mtd: bcm47xxnflash: use pr_fmt for module prefix in messages
  mtd: davinci_nand: Use managed resources
  mtd: mtd_torturetest can cause stack overflows
  mtd: physmap_of: Convert device allocation to managed devm_kzalloc()
  mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement.
  mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional.
  mtd: atmel_nand: avoid to report an error when lookup table offset is 0.
  mtd: bcm47xxsflash: adjust names of bus-specific functions
  mtd: bcm47xxpart: improve probing of nvram partition
  mtd: bcm47xxpart: add support for other erase sizes
  mtd: bcm47xxnflash: register this as normal driver
  mtd: bcm47xxnflash: fix message
  mtd: bcm47xxsflash: register this as normal driver
  mtd: bcm47xxsflash: write number of written bytes
  mtd: gpmi: add sanity check for the ECC
  mtd: gpmi: set the Golois Field bit for mx6q's BCH
  mtd: devices: elm: Removes <xx> literals in elm DT node
  mtd: gpmi: fix a dereferencing freed memory error
  mtd: fix the wrong timeo for panic_nand_wait()
  ...

11 years agoMerge branches 'devel-stable', 'fixes' and 'mmci' into for-linus
Russell King [Sun, 3 Mar 2013 00:32:50 +0000 (00:32 +0000)]
Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus

11 years agoSUNRPC: One line comment fix
Trond Myklebust [Sat, 2 Mar 2013 23:54:11 +0000 (15:54 -0800)]
SUNRPC: One line comment fix

Reported-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
11 years agoext4: enable quotas before orphan cleanup
Jan Kara [Sat, 2 Mar 2013 23:22:38 +0000 (18:22 -0500)]
ext4: enable quotas before orphan cleanup

When using quota feature we need to enable quotas before orphan cleanup
so that changes happening during it are properly reflected in quota
accounting.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: don't allow quota mount options when quota feature enabled
Jan Kara [Sat, 2 Mar 2013 22:57:08 +0000 (17:57 -0500)]
ext4: don't allow quota mount options when quota feature enabled

So far we silently ignored when quota mount options were set while quota
feature was enabled.  But this can create confusion in userspace when
mount options are set but silently ignored and also creates opportunities
for bugs when we don't properly test all quota types.  Actually
ext4_mark_dquot_dirty() forgets to test for quota feature so it was
dependent on journaled quota options being set.  OTOH ext4_orphan_cleanup()
tries to enable journaled quota when quota options are specified which is
wrong when quota feature is enabled.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: fix a warning from sparse check for ext4_dir_llseek
Zheng Liu [Sat, 2 Mar 2013 22:24:05 +0000 (17:24 -0500)]
ext4: fix a warning from sparse check for ext4_dir_llseek

ext4_dir_llseek is only used as a callback function, and no one calls
it directly.  So make it as a static function in order to remove a
warning message from sparse check.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: convert number of blocks to clusters properly
Lukas Czerner [Sat, 2 Mar 2013 22:18:58 +0000 (17:18 -0500)]
ext4: convert number of blocks to clusters properly

We're using macro EXT4_B2C() to convert number of blocks to number of
clusters for bigalloc file systems.  However, we should be using
EXT4_NUM_B2C().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
11 years agoext4: fix possible memory leak in ext4_remount()
Wei Yongjun [Sat, 2 Mar 2013 22:13:55 +0000 (17:13 -0500)]
ext4: fix possible memory leak in ext4_remount()

'orig_data' is malloced in ext4_remount() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@vger.kernel.org
11 years agojbd2: fix ERR_PTR dereference in jbd2__journal_start
Dmitry Monakhov [Sat, 2 Mar 2013 22:08:46 +0000 (17:08 -0500)]
jbd2: fix ERR_PTR dereference in jbd2__journal_start

If start_this_handle() failed handle will be initialized
to ERR_PTR() and can not be dereferenced.

paging request at fffffffffffffff6
IP: [<ffffffff813c073f>] jbd2__journal_start+0x18f/0x290
PGD 200e067 PUD 200f067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table mperf coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode sg xhci_hcd button sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw aes_x86_64 xts gf128mul ahci libahci pata_acpi ata_generic dm_mirror dm_region_hash dm_log dm_mod
CPU 0 journal commit I/O error

Pid: 2694, comm: fio Not tainted 3.8.0-rc3+ #79                  /DQ67SW
RIP: 0010:[<ffffffff813c073f>]  [<ffffffff813c073f>] jbd2__journal_start+0x18f/0x290
RSP: 0018:ffff880233b8ba58  EFLAGS: 00010292
RAX: 00000000ffffffe2 RBX: ffffffffffffffe2 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff82128f48
RBP: ffff880233b8ba98 R08: 0000000000000000 R09: ffff88021440a6e0

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agometag: Provide dma_get_sgtable()
James Hogan [Tue, 19 Feb 2013 13:25:46 +0000 (13:25 +0000)]
metag: Provide dma_get_sgtable()

metag/allmodconfig:

drivers/media/v4l2-core/videobuf2-dma-contig.c: In function 'vb2_dc_get_base_sgt':
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function 'dma_get_sgtable'

For architectures using dma_map_ops, dma_get_sgtable() is provided in
<asm-generic/dma-mapping-common.h>.

Metag does not use dma_map_ops yet, hence it should implement it as an
inline stub using dma_common_get_sgtable().

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
11 years agometag: prom.h: remove declaration of metag_dt_memblock_reserve()
James Hogan [Wed, 20 Feb 2013 14:19:54 +0000 (14:19 +0000)]
metag: prom.h: remove declaration of metag_dt_memblock_reserve()

Metag doesn't have a metag_dt_memblock_reserve() function so remove the
declaration from asm/prom.h.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: copy devicetree to non-init memory
James Hogan [Wed, 20 Feb 2013 13:59:13 +0000 (13:59 +0000)]
metag: copy devicetree to non-init memory

Make a copy of the device tree blob in non-init memory. It is required
when using built-in device tree files that the platform code copies the
blob to non-init memory prior to calling unflatten_device_tree(),
otherwise the strings that the device tree refer to will get poisoned
and potentially reused, breaking later reading of the device tree
post-init (such as compatible matching in modules, debugfs, and the
procfs interface).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Vineet Gupta <vgupta@synopsys.com>
11 years agometag: cleanup metag_ksyms.c includes
James Hogan [Wed, 13 Feb 2013 13:30:15 +0000 (13:30 +0000)]
metag: cleanup metag_ksyms.c includes

Minimise metag_ksyms.c includes to directly include the <asm/*.h> files
that declare a particular symbol, and not include any unnecessary ones.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move mm/init.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 13:19:15 +0000 (13:19 +0000)]
metag: move mm/init.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in mm/init.c into mm/init.c.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move usercopy.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:57:10 +0000 (12:57 +0000)]
metag: move usercopy.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in usercopy.c into usercopy.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move setup.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:55:51 +0000 (12:55 +0000)]
metag: move setup.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in setup.c into setup.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move kick.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 13:01:55 +0000 (13:01 +0000)]
metag: move kick.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in kick.c into kick.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move traps.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:19:03 +0000 (12:19 +0000)]
metag: move traps.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in traps.c into traps.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move irq enable out of irqflags.h on SMP
James Hogan [Tue, 12 Feb 2013 16:04:53 +0000 (16:04 +0000)]
metag: move irq enable out of irqflags.h on SMP

The SMP version of arch_local_irq_enable() uses preempt_disable(), but
<asm/irqflags.h> doesn't include <linux/preempt.h> causing the following
errors on SMP when pstore/ftrace is enabled (caught by buildbot smp
allyesconfig):

In file included from include/linux/irqflags.h:15,
                 from fs/pstore/ftrace.c:16:
arch/metag/include/asm/irqflags.h: In function 'arch_local_irq_enable':
arch/metag/include/asm/irqflags.h:84: error: implicit declaration of function 'preempt_disable'
arch/metag/include/asm/irqflags.h:86: error: implicit declaration of function 'preempt_enable_no_resched'

However <linux/preempt.h> cannot be easily included from
<asm/irqflags.h> as it can cause circular include dependencies in the
!SMP case, and potentially in the SMP case in the future. Therefore move
the SMP implementation of arch_local_irq_enable() into traps.c and use
an inline version of get_trigger_mask() which is also defined in traps.c
for SMP.

This adds an extra layer of function call / stack push when
preempt_disable needs to call other functions, however in the
non-preemptive SMP case it should be about as fast, as it was already
calling the get_trigger_mask() function which is now used inline.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agogenksyms: fix metag symbol prefix on crc symbols
James Hogan [Mon, 11 Feb 2013 15:40:24 +0000 (15:40 +0000)]
genksyms: fix metag symbol prefix on crc symbols

Meta uses symbol prefixes, so add "metag" to the list of architectures
to set the mod_prefix to "_" for. This fixes __crc_* symbols to add the
extra underscore to match _CRC_SYMBOL macro in <linux/export.h> and so
that modpost finds them.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: hugetlb: convert to vm_unmapped_area()
James Hogan [Mon, 11 Feb 2013 17:28:10 +0000 (17:28 +0000)]
metag: hugetlb: convert to vm_unmapped_area()

Convert hugetlb_get_unmapped_area_new_pmd() to use vm_unmapped_area()
rather than searching the virtual address space itself. This fixes the
following errors in linux-next due to the specified members being
removed after other architectures have already been converted:

arch/metag/mm/hugetlbpage.c: In function 'hugetlb_get_unmapped_area_new_pmd':
arch/metag/mm/hugetlbpage.c:199: error: 'struct mm_struct' has no member named 'cached_hole_size'
arch/metag/mm/hugetlbpage.c:200: error: 'struct mm_struct' has no member named 'free_area_cache'
arch/metag/mm/hugetlbpage.c:215: error: 'struct mm_struct' has no member named 'cached_hole_size'

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Michel Lespinasse <walken@google.com>
11 years agometag: export clear_page and copy_page
James Hogan [Mon, 11 Feb 2013 11:47:02 +0000 (11:47 +0000)]
metag: export clear_page and copy_page

Various file systems use clear_page() and copy_page(), so when they're
built as modules we get build errors like the following:

ERROR: "clear_page" [fs/ntfs/ntfs.ko] undefined!
ERROR: "copy_page" [fs/nilfs2/nilfs2.ko] undefined!

Therefore export these functions to modules from metag_ksyms.c to fix
the errors. This was hit by a randconfig build.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: export metag_code_cache_flush_all
James Hogan [Mon, 11 Feb 2013 11:43:20 +0000 (11:43 +0000)]
metag: export metag_code_cache_flush_all

Various file systems indirectly use metag_code_cache_flush_all(), so
when they're built as modules we get build errors like the following:

ERROR: "metag_code_cache_flush_all" [fs/xfs/xfs.ko] undefined!

Therefore export this function to modules to fix the errors. This was
hit by a randconfig build.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: protect more non-MMU memory regions
James Hogan [Thu, 31 Jan 2013 13:42:03 +0000 (13:42 +0000)]
metag: protect more non-MMU memory regions

Rename setup_txprivext() to setup_priv() and add initialisation of some
more per-thread privilege protection registers:

 - TxPRIVSYSR: 0x04400000-0x047fffff
               0x05000000-0x07ffffff
               0x84000000-0x87ffffff
 - TxPIOREG:   0x02000000-0x02ffffff
               0x04800000-0x048fffff
 - TxSYREG:    0x04000000-0x04000fff (except write fetch system event)

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: make TXPRIVEXT bits explicit
James Hogan [Thu, 31 Jan 2013 13:27:35 +0000 (13:27 +0000)]
metag: make TXPRIVEXT bits explicit

Define PRIV_BITS using explicit constants from <asm/metag_regs.h> rather
than with a hard coded value. This also adds a couple of missing
definitions for the TXPRIVEXT priv bits for protecting writes to TXTIMER
and the trace registers.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: kernel/setup.c: sort includes
James Hogan [Thu, 31 Jan 2013 13:38:48 +0000 (13:38 +0000)]
metag: kernel/setup.c: sort includes

Sort includes in kernel/setup.c.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agoperf: Enable building perf tools for Meta
James Hogan [Thu, 31 Jan 2013 12:22:37 +0000 (12:22 +0000)]
perf: Enable building perf tools for Meta

Define rmb(), cpu_relax(), and CPUINFO_PROC for Meta so that the perf
tools can be built for Meta.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
11 years agometag: add boot time LNKGET/LNKSET check
James Hogan [Thu, 31 Jan 2013 11:06:03 +0000 (11:06 +0000)]
metag: add boot time LNKGET/LNKSET check

Add boot time check for whether LNKGET/LNKSET go through or around the
cache. Depending on the configuration an info message (no harm), warning
(technically wrong but no harm), or big WARN (expect failure in either
kernel or userland) may be emitted if the behaviour is not as expected:

Configuration                                Hardware   Response
------------------------------------------   --------   --------
AROUND_CACHE                                 through    pr_info
!AROUND_CACHE && ATOMICITY_LNKGET            around     WARN (kernel)
     "        && !ATOMICITY_LNKGET && SMP    around     WARN (user)
     "                   "         && !SMP   around     pr_warn

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: add __init to metag_cache_probe()
James Hogan [Thu, 31 Jan 2013 11:04:49 +0000 (11:04 +0000)]
metag: add __init to metag_cache_probe()

metag_cache_probe() is only called from setup_arch(), so add the __init
attribute to it.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Add JTAG Debug Adapter (DA) support
James Hogan [Fri, 21 Sep 2012 16:38:15 +0000 (17:38 +0100)]
metag: Add JTAG Debug Adapter (DA) support

Add basic JTAG Debug Adapter (DA) support so that drivers which
communicate with the DA can detect whether one is actually present
(otherwise the target will halt indefinitely).

This allows the metag_da TTY driver and imgdafs filesystem driver to be
built, updates defconfigs, and sets up the metag_da console early if
it's configured in.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agoscripts/checkstack.pl: Add metag support
James Hogan [Wed, 17 Oct 2012 14:21:13 +0000 (15:21 +0100)]
scripts/checkstack.pl: Add metag support

Adapt checkstack.pl so that it works for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: ftrace support
James Hogan [Fri, 5 Oct 2012 15:27:31 +0000 (16:27 +0100)]
metag: ftrace support

Add ftrace support for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
11 years agometag: Perf
James Hogan [Fri, 5 Oct 2012 15:54:55 +0000 (16:54 +0100)]
metag: Perf

Add Perf support for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
11 years agometag: Build infrastructure
James Hogan [Tue, 9 Oct 2012 09:54:32 +0000 (10:54 +0100)]
metag: Build infrastructure

Add metag build infrastructure.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agoKconfig.debug: add METAG to dependency lists
James Hogan [Wed, 5 Dec 2012 11:34:13 +0000 (11:34 +0000)]
Kconfig.debug: add METAG to dependency lists

Add [!]METAG to a couple of Kconfig dependencies in lib/Kconfig.debug.
Don't allow stack utilization instrumentation on metag, and allow
building with frame pointers.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Paul E. McKenney" <paul.mckenney@linaro.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
11 years agomm: define VM_GROWSUP for CONFIG_METAG
James Hogan [Tue, 16 Oct 2012 09:16:14 +0000 (10:16 +0100)]
mm: define VM_GROWSUP for CONFIG_METAG

Commit cc2383ec06be093789469852e1fe96e1148e9a2c ("mm: introduce
arch-specific vma flag VM_ARCH_1") merged in v3.7-rc1.

The above commit combined several arch-specific vma flags into one, and
in the process it changed the VM_GROWSUP definition to depend on
specific architectures rather than CONFIG_STACK_GROWSUP. Therefore add
an ifdef for CONFIG_METAG to also set VM_GROWSUP.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michel Lespinasse <walken@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-mm@kvack.org
11 years agometag: Various other headers
James Hogan [Fri, 5 Oct 2012 15:22:14 +0000 (16:22 +0100)]
metag: Various other headers

Add the remaining metag header files:
 - byteorder.h, swab.h (byte order and swapping)
 - barrier.h, cpu.h. hwthread.h, processor.h (hardware thread related)
 - bug.h, elf.h, gpio.h, linkage.h, resource.h (other)

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Stack unwinding
James Hogan [Fri, 5 Oct 2012 16:01:38 +0000 (17:01 +0100)]
metag: Stack unwinding

Add stack unwinding support for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Optimised library functions
James Hogan [Fri, 5 Oct 2012 16:02:09 +0000 (17:02 +0100)]
metag: Optimised library functions

Add optimised library functions for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: DMA
James Hogan [Fri, 5 Oct 2012 15:27:03 +0000 (16:27 +0100)]
metag: DMA

Add DMA mapping code.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: SMP support
James Hogan [Fri, 5 Oct 2012 15:56:56 +0000 (16:56 +0100)]
metag: SMP support

Add SMP support for metag. This allows Linux to take control of multiple
hardware threads on a single Meta core, treating them as separate Linux
CPUs.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Basic documentation
James Hogan [Tue, 9 Oct 2012 10:00:27 +0000 (11:00 +0100)]
metag: Basic documentation

Add basic metag documentation. This includes an outline description of
the ABIs (including syscall ABI) and calling conventions, similar to the
one in Documentation/frv/.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Rob Landley <rob@landley.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-doc@vger.kernel.org
11 years agometag: Atomics, locks and bitops
James Hogan [Tue, 9 Oct 2012 10:00:24 +0000 (11:00 +0100)]
metag: Atomics, locks and bitops

Add header files to implement Meta hardware thread locks (used by some
other atomic operations), atomics, spinlocks, and bitops.

There are 2 main types of atomic primitives for metag (in addition to
IRQs off on UP):
 - LOCK instructions provide locking between hardware threads.
 - LNKGET/LNKSET instructions provide load-linked/store-conditional
   operations allowing for lighter weight atomics on Meta2

LOCK instructions allow for hardware threads to acquire voluntary or
exclusive hardware thread locks:
 - LOCK0 releases exclusive and voluntary lock from the running hardware
   thread.
 - LOCK1 acquires the voluntary hardware lock, blocking until it becomes
   available.
 - LOCK2 implies LOCK1, and additionally acquires the exclusive hardware
   lock, blocking all other hardware threads from executing.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Module support
James Hogan [Tue, 9 Oct 2012 09:55:00 +0000 (10:55 +0100)]
metag: Module support

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Scheduling/Process management
James Hogan [Tue, 9 Oct 2012 09:54:54 +0000 (10:54 +0100)]
metag: Scheduling/Process management

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: System Calls
James Hogan [Tue, 9 Oct 2012 09:54:51 +0000 (10:54 +0100)]
metag: System Calls

Add metag system call and gateway page interfaces. The metag
architecture port uses the generic system call numbers from
asm-generic/unistd.h, as well as a user gateway page mapped at
0x6ffff000 which contains fast atomic primitives (depending on SMP) and
a fast method of accessing TLS data.

System calls use the SWITCH instruction with the immediate 0x440001 to
signal a system call.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Internal and external irqchips
James Hogan [Tue, 9 Oct 2012 09:54:47 +0000 (10:54 +0100)]
metag: Internal and external irqchips

Meta core internal interrupts (from HWSTATMETA and friends) are vectored
onto the TR1 core trigger for the current thread. This is demultiplexed
in irq-metag.c to individual Linux IRQs for each internal interrupt.

External SoC interrupts (from HWSTATEXT and friends) are vectored onto
the TR2 core trigger for the current thread. This is demultiplexed in
irq-metag-ext.c to individual Linux IRQs for each external SoC interrupt.
The external irqchip has devicetree bindings for configuring the number
of irq banks and the type of masking available.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Dom Cobley <popcornmix@gmail.com>
Cc: Simon Arlott <simon@fire.lp0.eu>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org
11 years agometag: IRQ handling
James Hogan [Tue, 9 Oct 2012 09:54:47 +0000 (10:54 +0100)]
metag: IRQ handling

Add core IRQ handling for metag. The code in irq.c exposes the TBX
signal numbers as Linux IRQs.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Traps
James Hogan [Tue, 9 Oct 2012 09:54:43 +0000 (10:54 +0100)]
metag: Traps

Add trap code for metag. At the lowest level Meta traps (and return from
interrupt instruction - RTI) simply swap the PC and PCX registers and
optionally toggle the interrupt status bit (ISTAT). Low level TBX code
in tbipcx.S handles the core context save, determine the TBX signal
number based on the core trigger that fired (using the TXSTATI status
register), and call TBX signal handlers (mostly in traps.c) via a vector
table.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
11 years agometag: Time keeping
James Hogan [Tue, 9 Oct 2012 09:54:39 +0000 (10:54 +0100)]
metag: Time keeping

Add time keeping code for metag. Meta hardware threads have 2 timers.
The background timer (TXTIMER) is used as a free-running time base, and
the interrupt timer (TXTIMERI) is used for the timer interrupt. Both
counters traditionally count at approximately 1MHz.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
11 years agometag: ptrace
James Hogan [Tue, 9 Oct 2012 09:54:36 +0000 (10:54 +0100)]
metag: ptrace

The ptrace interface for metag provides access to some core register
sets using the PTRACE_GETREGSET and PTRACE_SETREGSET operations. The
details of the internal context structures is abstracted into user API
structures to both ease use and allow flexibility to change the internal
context layouts. Copyin and copyout functions for these register sets
are exposed to allow signal handling code to use them to copy to and
from the signal context.

struct user_gp_regs (NT_PRSTATUS) provides access to the core general
purpose register context.

struct user_cb_regs (NT_METAG_CBUF) provides access to the TXCATCH*
registers which contains information abuot a memory fault, unaligned
access error or watchpoint. This can be modified to alter the way the
fault is replayed on resume ("catch replay"), or to prevent the replay
taking place.

struct user_rp_state (NT_METAG_RPIPE) provides access to the state of
the Meta read pipeline which can be used to hide memory latencies in
hand optimised data loops.

Extended DSP register state, DSP RAM, and hardware breakpoint registers
aren't yet exposed through ptrace.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Lindgren <tony@atomide.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
11 years agometag: Device tree
James Hogan [Fri, 5 Oct 2012 15:02:12 +0000 (16:02 +0100)]
metag: Device tree

Add device tree files to arch/metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Vineet Gupta <vgupta@synopsys.com>
11 years agometag: Signal handling
James Hogan [Tue, 9 Oct 2012 09:54:27 +0000 (10:54 +0100)]
metag: Signal handling

Add signal handling code for metag.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
11 years agometag: TCM support
James Hogan [Tue, 9 Oct 2012 09:54:17 +0000 (10:54 +0100)]
metag: TCM support

Add some TCM support

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: Highmem support
James Hogan [Tue, 9 Oct 2012 09:54:17 +0000 (10:54 +0100)]
metag: Highmem support

Signed-off-by: James Hogan <james.hogan@imgtec.com>