Commit Graph

74546 Commits

Author SHA1 Message Date
Ralf Baechle
2551aebc67 MIPS: MT: Remove kspd.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:14:12 +02:00
Ralf Baechle
2eaaac508a MIPS: Malta: Fix section mismatch.
LD      arch/mips/pci/built-in.o
WARNING: arch/mips/pci/built-in.o(.devinit.text+0x2a0): Section mismatch in reference from the function malta_piix_func0_fixup() to the variable .init.data:pci_irq
The function __devinit malta_piix_func0_fixup() references
a variable __initdata pci_irq.
If pci_irq is only used by malta_piix_func0_fixup then
annotate pci_irq with a matching annotation.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:14:12 +02:00
Ralf Baechle
3efd5a0db5 MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
Originally added in 05b541489c48e7fbeec19a92acf8683230750d0a [Merge with
Linux 2.5.5.] over 10 years ago but never been used.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
851d4f5d38 MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
The PB1100/1500 are similar to their DB-cousins but with a few
more devices on the bus.

This patch adds PB1100/1500 support to the existing DB1100/1500
code.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: lnux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
24e8c1a611 MIPS: Alchemy: merge PB1550 support into DB1550 code
The PB1550 is more or less a DB1550 without the PCI IDE controller,
a more complicated (read: configurable) Flash setup and some other
minor changes.  Like the DB1550 it can be automatically detected by
reading the CPLD ID register bits.

This patch adds PB1550 detection and setup to the DB1550 code.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Manuel Lauss
bd8510df88 MIPS: Alchemy: Single kernel for DB1200/1300/1550
Combine support for the DB1200/PB1200, DB1300 and DB1550 boards into
a single kernel image.

defconfig-generated image verified on DB1200, DB1300 and DB1550.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4335/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
David Daney
748e787eb6 MIPS: Optimize TLB refill for RI/XI configurations.
We don't have to do a separate shift to eliminate the software bits,
just rotate them into the fill and they will be ignored.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4294/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:11:20 +02:00
Ralf Baechle
981ef0de49 MIPS: proc: Cleanup printing of ASEs.
The number of %s was just getting ridiculous.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:10:43 +02:00
Ralf Baechle
475032564e MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
Most supported systems currently hardwire cpu_has_dsp to 0, so we also
can disable support for cpu_has_dsp2 resulting in a slightly smaller
kernel.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:10:43 +02:00
Steven J. Hill
ee80f7c73d MIPS: Add detection of DSP ASE Revision 2.
[ralf@linux-mips.org: This patch really only detects the ASE and passes its
existence on to userland via /proc/cpuinfo.  The DSP ASE Rev 2. adds new
resources but no resources that would need management by the kernel.]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4165/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:05:03 +02:00
David Daney
f59a2d22a0 MIPS: Optimize pgd_init and pmd_init
On a dual issue processor GCC generates code that saves a couple of
clock cycles per loop if we rearrange things slightly.  Checking for
p != end saves a SLTU per loop, moving the increment to the middle can
let it dual issue on multi-issue processors.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4249/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:35 +02:00
Al Cooper
a7911a8fd1 MIPS: perf: Add perf functionality for BMIPS5000
Add hardware performance counter support to kernel "perf" code for
BMIPS5000. The BMIPS5000 performance counters are similar to MIPS
MTI cores, so the changes were mostly made in perf_event_mipsxx.c
which is typically for MTI cores.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4109/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
399aaa2568 MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
Split the Kconfig option CONFIG_MIPS_MT_SMP into CONFIG_MIPS_MT_SMP
and CONFIG_MIPS_PERF_SHARED_TC_COUNTERS so some of the code used
for performance counters that are shared between threads can be used
for MIPS cores that are not MT_SMP.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4108/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
ecb8ee8a89 MIPS: perf: Remove unnecessary #ifdef
The #ifdef for CONFIG_HW_PERF_EVENTS is not needed because the
Makefile will only compile the module if this config option is set.
This means that the code under #else would never be compiled. This
may have been done to leave the original broken code around for
reference, but the FIXME comment above the code already shows the
broken code.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4107/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
da4b62cd67 MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
The PCI (Program Counter Interrupt) bit in the "cause" register
is mandatory for MIPS32R2 cores, but has also been added to some R1
cores (BMIPS5000). This change adds a cpu feature bit to make it
easier to check for and use this feature.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:04:34 +02:00
Al Cooper
c5600b2dd9 MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
Change the indicator from 0xffffffff in the "event_id" member to
zero in the "cntr_mask" member. This removes the need to initialize
entries that are unsupported. This also solves a problem where the
number of entries in the table was increased based on a globel enum
used for all platforms, but the new unsupported entries were not added
for mips. This was leaving new table entries of all zeros that we not
marked UNSUPPORTED.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4110/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:41 +02:00
David Daney
485172b3df MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
We can save an instruction in the TLB Refill path for kernel mappings
by aligning swapper_pg_dir on a 64K boundary.  The address of
swapper_pg_dir can be generated with a single LUI instead of
LUI/{D}ADDUI.

The alignment of __init_end is bumped up to 64K so there are no holes
between it and swapper_pg_dir, which is placed at the very beginning
of .bss.

The alignment of invalid_pmd_table and invalid_pte_table can be
relaxed to PAGE_SIZE.  We do this by using __page_aligned_bss, which
has the added benefit of eliminating alignment holes in .bss.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-arch@vger.kernel.org,
Cc: linux-kernel@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Patchwork: https://patchwork.linux-mips.org/patch/4220/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:40 +02:00
Joshua Kinard
b4f2a17ba9 Improve atomic.h robustness
I've maintained this patch, originally from Thiemo Seufer in 2004, for a
really long time, but I think it's time for it to get a look at for
possible inclusion.  I have had no problems with it across various SGI
systems over the years.

To quote the post here:
http://www.linux-mips.org/archives/linux-mips/2004-12/msg00000.html

"the atomic functions use so far memory references for the inline
assembler to access the semaphore. This can lead to additional
instructions in the ll/sc loop, because newer compilers don't
expand the memory reference any more but leave it to the assembler.

The appended patch uses registers instead, and makes the ll/sc
arguments more explicit. In some cases it will lead also to better
register scheduling because the register isn't bound to an output
any more."

Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4029/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-11 11:02:36 +02:00
Linus Torvalds
12250d843e Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
Pull i2c-embedded changes from Wolfram Sang:
 "The changes for i2c-embedded include:

   - massive rework of the omap driver
   - massive rework of the at91 driver.  In fact, the old driver gets
     removed; I am okay with this approach since the old driver was
     depending on BROKEN and its limitations made it practically
     unusable, so people used bitbanging instead.  But even if there are
     users, there is no platform_data or module parameter which would
     need to be converted.  It is just another driver doing I2C
     transfers, just way better.  Modifications of arch/arm/at91 related
     files have proper acks from the maintainer.
   - new driver for R-Car I2C
   - devicetree and generic_clock conversions and fixes
   - usual driver fixes and changes.

  The rework patches have come a long way and lots of people have been
  involved in creating/testing them.  Most patches have been in
  linux-next at least since 3.6-rc5.  A few have been added in the last
  week, I have to admit.

  An unexpected (but welcome :)) peak in private life is the cause for
  that.  The "late" patches shouldn't cause any merge conflicts and I
  will have a special eye on them during the stabilization phase.  This
  is an exception and I want to have the patches in place properly in
  time again for the next kernels."

* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux: (44 commits)
  MXS: Implement DMA support into mxs-i2c
  i2c: add Renesas R-Car I2C driver
  i2c: s3c2410: use clk_prepare_enable and clk_disable_unprepare
  ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints
  i2c: nomadik: Add Device Tree support to the Nomadik I2C driver
  i2c: algo: pca: Fix chip reset function for PCA9665
  i2c: mpc: Wait for STOP to hit the bus
  i2c: davinci: preparation for switch to common clock framework
  omap-i2c: fix incorrect log message when using a device tree
  i2c: omap: sanitize exit path
  i2c: omap: switch over to autosuspend API
  i2c: omap: remove unnecessary pm_runtime_suspended check
  i2c: omap: switch to threaded IRQ support
  i2c: omap: remove redundant status read
  i2c: omap: get rid of the "complete" label
  i2c: omap: resize fifos before each message
  i2c: omap: simplify IRQ exit path
  i2c: omap: always return IRQ_HANDLED
  i2c: omap: simplify errata check
  i2c: omap: bus: add a receiver flag
  ...
2012-10-11 10:27:51 +09:00
Linus Torvalds
da06a8d7be ARM: SoC fixes
A series of fixes (and in some cases, some cleanups):
 
 Via Tony Lindgren:
 - A collection of OMAP regression fixes, in particular because firmware
   no longer sets up all pin states before starting the kernel.
 - cpufreq fixes for OMAP (Rafael is on vacation and this was pre-agreed).
 - A longer series of misc regression fixes and cleanups, warning removals,
   etc for OMAP
 
 From Arnd Bergmann:
 - A series of warning fixes for various platforms (defconfig builds)
 
 Misc:
 - A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A series of fixes (and in some cases, some cleanups):

  Via Tony Lindgren:
   - A collection of OMAP regression fixes, in particular because
     firmware no longer sets up all pin states before starting the
     kernel.
   - cpufreq fixes for OMAP (Rafael is on vacation and this was
     pre-agreed).
   - A longer series of misc regression fixes and cleanups, warning
     removals, etc for OMAP

  From Arnd Bergmann:
   - A series of warning fixes for various platforms (defconfig builds)

  Misc:
   - A couple of tegra fixes, one for i.MX, some vt8500 fixes, etc."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
  ARM: pxa: armcore: fix PCI PIO warnings
  ARM: integrator: use __iomem pointers for MMIO, part 2
  ARM: assabet: fix bogus warning in get_assabet_scr (again)
  ARM: shmobile: mark shmobile_init_late as __init
  ARM: integrator_cp: fix build failure
  ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
  ARM: OMAP3: fix workaround for EMU clockdomain
  arm/omap: Replace board_ref_clock with enum values
  ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
  arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
  arch/arm/mach-omap2: Remove unecessary semicolon
  arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
  ARM/dts: omap5-evm: pinmux configuration for audio
  ARM/dts: Add pinctrl driver entries for omap5
  ARM/dts: omap4-panda: pinmux configuration for audio
  ARM/dts: omap4-sdp: pinmux configuration for audio
  ARM/dts: omap5-evm: Disable unused McBSP3
  ARM/dts: omap4-sdp: Disable unused McBSP3
  ARM/dts: omap4-panda: Disable unused audio IPs
  ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
  ...
2012-10-11 10:21:48 +09:00
Linus Torvalds
14ffe009ca Merge branch 'akpm' (Fixups from Andrew)
Merge misc fixes from Andrew Morton:
 "Followups, fixes and some random stuff I found on the internet."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (11 patches)
  perf: fix duplicate header inclusion
  memcg, kmem: fix build error when CONFIG_INET is disabled
  rtc: kconfig: fix RTC_INTF defaults connected to RTC_CLASS
  rapidio: fix comment
  lib/kasprintf.c: use kmalloc_track_caller() to get accurate traces for kvasprintf
  rapidio: update for destination ID allocation
  rapidio: update asynchronous discovery initialization
  rapidio: use msleep in discovery wait
  mm: compaction: fix bit ranges in {get,clear,set}_pageblock_skip()
  arch/powerpc/platforms/pseries/hotplug-memory.c: section removal cleanups
  arch/powerpc/platforms/pseries/hotplug-memory.c: fix section handling code
2012-10-11 10:14:16 +09:00
Yasuaki Ishimatsu
1633dbbacb arch/powerpc/platforms/pseries/hotplug-memory.c: section removal cleanups
Followups to d760afd4d2 ("memory-hotplug: suppress "Trying to free
nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning").

 - use unsigned long type, as overflows are conceivable

 - rename `i' to the less-misleading and more informative `section'

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:14 +09:00
Andrew Morton
158544b165 arch/powerpc/platforms/pseries/hotplug-memory.c: fix section handling code
Fix

  arch/powerpc/platforms/pseries/hotplug-memory.c: In function 'pseries_remove_memblock':
  arch/powerpc/platforms/pseries/hotplug-memory.c:103:17: error: unused variable 'pfn' [-Werror=unused-variable]

Caused by commit d760afd4d2 ("memory-hotplug: suppress "Trying to free
nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning").

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-11 08:50:13 +09:00
Linus Torvalds
2474542f64 pwm: Changes for v3.7-rc1
All legacy PWM providers have now been moved to the PWM subsystem. The
 plan for 3.8 is to adapt all board files to provide a lookup table for
 PWM devices in order to get rid of the global namespace. Subsequently,
 users of the legacy pwm_request() and pwm_free() functions can be
 migrated to the new pwm_get() and pwm_put() functions. Once this has
 been completed, the legacy API and the compatibility code in the core
 can be removed.
 
 In addition to the above, these changes also add support for configuring
 the polarity of a PWM signal (currently only supported on ECAP and
 EHRPWM) and include a much needed rework of the i.MX driver. Managed
 functions to obtain and release a PWM device (devm_pwm_get() and
 devm_pwm_put()) have been added and the pwm-backlight driver has been
 updated to use them. If the PWM subsystem hasn't been enabled, dummy
 functions are provided that allow the subsystem to safely compile out.
 
 Some common checks on input parameters have been moved to the core and
 removed from the drivers. Finally, a small fix corrects the description
 of the PWM specifier's second cell in the device tree representation.
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Merge tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm

Pull pwm changes from Thierry Reding:
 "All legacy PWM providers have now been moved to the PWM subsystem.
  The plan for 3.8 is to adapt all board files to provide a lookup table
  for PWM devices in order to get rid of the global namespace.
  Subsequently, users of the legacy pwm_request() and pwm_free()
  functions can be migrated to the new pwm_get() and pwm_put()
  functions.  Once this has been completed, the legacy API and the
  compatibility code in the core can be removed.

  In addition to the above, these changes also add support for
  configuring the polarity of a PWM signal (currently only supported on
  ECAP and EHRPWM) and include a much needed rework of the i.MX driver.
  Managed functions to obtain and release a PWM device (devm_pwm_get()
  and devm_pwm_put()) have been added and the pwm-backlight driver has
  been updated to use them.  If the PWM subsystem hasn't been enabled,
  dummy functions are provided that allow the subsystem to safely
  compile out.

  Some common checks on input parameters have been moved to the core and
  removed from the drivers.  Finally, a small fix corrects the
  description of the PWM specifier's second cell in the device tree
  representation."

* tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (23 commits)
  pwm: dt: Fix description of second PWM cell
  pwm: Check for negative duty-cycle and period
  pwm: Add Ingenic JZ4740 support
  MIPS: JZ4740: Export timer API
  pwm: Move PUV3 PWM driver to PWM framework
  unicore32: pwm: Use managed resource allocations
  unicore32: pwm: Remove unnecessary indirection
  unicore32: pwm: Use module_platform_driver()
  unicore32: pwm: Properly remap memory-mapped registers
  pwm-backlight: Use devm_pwm_get() instead of pwm_get()
  pwm: Move AB8500 PWM driver to PWM framework
  pwm: Fix compilation error when CONFIG_PWM is not defined
  pwm: i.MX: fix clock lookup
  pwm: i.MX: use per clock unconditionally
  pwm: i.MX: add devicetree support
  pwm: i.MX: Use module_platform_driver
  pwm: i.MX: add functions to enable/disable pwm.
  pwm: i.MX: remove unnecessary if in pwm_[en|dis]able
  pwm: i.MX: factor out SoC specific functions
  pwm: pwm-tiehrpwm: Add support for configuring polarity of PWM
  ...
2012-10-10 20:15:24 +09:00
Linus Torvalds
e1b28147f6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull second s390 update from Martin Schwidefsky:
 "The big thing in this pull request is the UAPI patch from David, and
  worth mentioning is the page table dumper.  The rest are small
  improvements and bug fixes."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/entry: fix svc number for TIF_SYSCALL system call restart
  s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()
  s390/vmalloc: have separate modules area
  s390/zcrypt: remove duplicated include from zcrypt_pcixcc.c
  s390/css_chars: remove superfluous ifdef
  s390/chsc: make headers usable
  s390/mm: let kernel text section always begin at 1MB
  s390/mm: fix mapping of read-only kernel text section
  s390/mm: add page table dumper
  s390: add support to start the kernel in 64 bit mode.
  s390/mm,pageattr: remove superfluous EXPORT_SYMBOLs
  s390/mm,pageattr: add more page table walk sanity checks
  s390/mm: fix pmd_huge() usage for kernel mapping
  s390/dcssblk: cleanup device attribute usage
  s390/mm: use pfmf instruction to initialize storage keys
  s390/facilities: cleanup PFMF and HPAGE machine facility detection
  UAPI: (Scripted) Disintegrate arch/s390/include/asm
2012-10-10 19:48:33 +09:00
Linus Torvalds
42859eea96 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull generic execve() changes from Al Viro:
 "This introduces the generic kernel_thread() and kernel_execve()
  functions, and switches x86, arm, alpha, um and s390 over to them."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (26 commits)
  s390: convert to generic kernel_execve()
  s390: switch to generic kernel_thread()
  s390: fold kernel_thread_helper() into ret_from_fork()
  s390: fold execve_tail() into start_thread(), convert to generic sys_execve()
  um: switch to generic kernel_thread()
  x86, um/x86: switch to generic sys_execve and kernel_execve
  x86: split ret_from_fork
  alpha: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
  alpha: switch to generic kernel_thread()
  alpha: switch to generic sys_execve()
  arm: get rid of execve wrapper, switch to generic execve() implementation
  arm: optimized current_pt_regs()
  arm: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
  arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk]
  generic sys_execve()
  generic kernel_execve()
  new helper: current_pt_regs()
  preparation for generic kernel_thread()
  um: kill thread->forking
  um: let signal_delivered() do SIGTRAP on singlestepping into handler
  ...
2012-10-10 12:02:25 +09:00
Linus Torvalds
f59b51fe3d Merge branch 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML changes from Richard Weinberger:
 "UML receives this time only cleanups.

  The most outstanding change is the 'include "foo.h"' do 'include
  <foo.h>' conversion done by Al Viro.

  It touches many files, that's why the diffstat is rather big."

* 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  typo in UserModeLinux-HOWTO
  hppfs: fix the return value of get_inode()
  hostfs: drop vmtruncate
  um: get rid of pointless include "..." where include <...> will do
  um: move sysrq.h out of include/shared
  um/x86: merge 32 and 64 bit variants of ptrace.h
  um/x86: merge 32 and 64bit variants of checksum.h
2012-10-10 11:15:20 +09:00
Linus Torvalds
23d5385f38 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc update from David Miller:
 "This is just the UAPI commits for sparc via David Howells."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  UAPI: (Scripted) Disintegrate arch/sparc/include/asm
2012-10-10 11:12:03 +09:00
Linus Torvalds
b7e97d2211 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
 "This time we have Andy updates on dw_dmac which is attempting to make
  this IP block available as PCI and platform device though not fully
  complete this time.

  We also have TI EDMA moving the dma driver to use dmaengine APIs, also
  have a new driver for mmp-tdma, along with bunch of small updates.

  Now for your excitement the merge is little unusual here, while
  merging the auto merge on linux-next picks wrong choice for pl330
  (drivers/dma/pl330.c) and this causes build failure.  The correct
  resolution is in linux-next.  (DMA: PL330: Fix build error) I didn't
  back merge your tree this time as you are better than me so no point
  in doing that for me :)"

Fixed the pl330 conflict as in linux-next, along with trivial header
file conflicts due to changed includes.

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits)
  dma: tegra: fix interrupt name issue with apb dma.
  dw_dmac: fix a regression in dwc_prep_dma_memcpy
  dw_dmac: introduce software emulation of LLP transfers
  dw_dmac: autoconfigure data_width or get it via platform data
  dw_dmac: autoconfigure block_size or use platform data
  dw_dmac: get number of channels from hardware if possible
  dw_dmac: fill optional encoded parameters in register structure
  dw_dmac: mark dwc_dump_chan_regs as inline
  DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resources
  DMA: PL330: Remove redundant runtime_suspend/resume functions
  DMA: PL330: Remove controller clock enable/disable
  dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
  DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  ARM: EXYNOS: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
  dma: tegra: use list_move_tail instead of list_del/list_add_tail
  mxs/dma: Enlarge the CCW descriptor area to 4 pages
  dw_dmac: utilize slave_id to pass request line
  dmaengine: mmp_tdma: add dt support
  dmaengine: mmp-pdma support
  spi: davici - make davinci select edma
  ...
2012-10-10 11:10:41 +09:00
Linus Torvalds
943c2acea5 MMC highlights for 3.7:
Core:
  - Add DT properties for card detection (broken-cd, cd-gpios, non-removable)
  - Don't poll non-removable devices
  - Fixup/rework eMMC sleep mode/"power off notify" feature
  - Support eMMC background operations (BKOPS).  To set the one-time
    programmable fuse that enables bkops on an eMMC that doesn't already
    have it set, you can use the "mmc bkops enable" command in:
      git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git
 
 Drivers:
  - atmel-mci, dw_mmc, pxa-mci, dove, s3c, spear: Add device tree support
  - bfin_sdh: Add support for the controller in bf60x
  - dw_mmc: Support Samsung Exynos SoCs
  - eSDHC: Add ADMA support
  - sdhci: Support testing a cd-gpio (from slot-gpio) instead of presence bit
  - sdhci-pltfm: Support broken-cd DT property
  - tegra: Convert to only supporting DT (mach-tegra has gone DT-only)
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Merge tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "Core:
   - Add DT properties for card detection (broken-cd, cd-gpios,
     non-removable)
   - Don't poll non-removable devices
   - Fixup/rework eMMC sleep mode/"power off notify" feature
   - Support eMMC background operations (BKOPS).  To set the one-time
     programmable fuse that enables bkops on an eMMC that doesn't
     already have it set, you can use the "mmc bkops enable" command in:

       git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git

  Drivers:
   - atmel-mci, dw_mmc, pxa-mci, dove, s3c, spear: Add device tree
     support
   - bfin_sdh: Add support for the controller in bf60x
   - dw_mmc: Support Samsung Exynos SoCs
   - eSDHC: Add ADMA support
   - sdhci: Support testing a cd-gpio (from slot-gpio) instead of
     presence bit
   - sdhci-pltfm: Support broken-cd DT property
   - tegra: Convert to only supporting DT (mach-tegra has gone DT-only)"

* tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (67 commits)
  mmc: core: Fixup broken suspend and eMMC4.5 power off notify
  mmc: sdhci-spear: Add clk_{un}prepare() support
  mmc: sdhci-spear: add device tree bindings
  mmc: sdhci-s3c: Add clk_(enable/disable) in runtime suspend/resume
  mmc: core: Replace MMC_CAP2_BROKEN_VOLTAGE with test for fixed regulator
  mmc: sdhci-pxav3: Use sdhci_get_of_property for parsing DT quirks
  mmc: dt: Support "broken-cd" property in sdhci-pltfm
  mmc: sdhci-s3c: fix the wrong number of max bus clocks
  mmc: sh-mmcif: avoid oops on spurious interrupts
  mmc: sh-mmcif: properly handle MMC_WRITE_MULTIPLE_BLOCK completion IRQ
  mmc: sdhci-s3c: Fix crash on module insertion for second time
  mmc: sdhci-s3c: Enable only required bus clock
  mmc: Revert "mmc: dw_mmc: Add check for IDMAC configuration"
  mmc: mxcmmc: fix bug that may block a data transfer forever
  mmc: omap_hsmmc: Pass on the suspend failure to the PM core
  mmc: atmel-mci: AP700x PDC is not connected to MCI
  mmc: atmel-mci: DMA can be used with other controllers
  mmc: mmci: use clk_prepare_enable and clk_disable_unprepare
  mmc: sdhci-s3c: Add device tree support
  mmc: dw_mmc: add support for exynos specific implementation of dw-mshc
  ...
2012-10-10 10:58:42 +09:00
Olof Johansson
6bd5dbda2a Merge tag 'omap-for-v3.7-rc1/fixes-asoc-regression-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

This branch contains regression fixes for omap4/5 ASoC
audio that were caused by the fact that u-boot stopped
muxing non essential pins.

As omap audio and dmaengine development happens on
these platforms, let's make sure they are usable.

Of course this should have been fixed earlier and
not during the -rc cycle.

* tag 'omap-for-v3.7-rc1/fixes-asoc-regression-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM/dts: omap5-evm: pinmux configuration for audio
  ARM/dts: Add pinctrl driver entries for omap5
  ARM/dts: omap4-panda: pinmux configuration for audio
  ARM/dts: omap4-sdp: pinmux configuration for audio
  ARM/dts: omap5-evm: Disable unused McBSP3
  ARM/dts: omap4-sdp: Disable unused McBSP3
  ARM/dts: omap4-panda: Disable unused audio IPs
  ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
  ARM: OMAP: board-4430-sdp: Pin mux configuration for audio needs
2012-10-09 15:00:58 -07:00
Olof Johansson
1e574e3a7d Merge tag 'omap-for-v3.7-rc1/fixes-cpufreq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

These were agreed to be merged via arm soc tree as Rafael
is on vacation.

From Kevin Hilman <khilman@deeprootsystems.com>:

This series a couple bug fixes and a couple fixes that make this
driver support recently added OMAP-based SoCs.

The 'get_cpu_device' patch is needed due to a change in the OMAP
OMAP PM core code which enforces use of get_cpu_device() instead of
a deprecated OMAP-specific API.

The usage of plat/*.h headers breaks single zImage, so platforms are
cleaning up and/or removing plat/*.h so the driver needs to be fixed
accordingly.

This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into
Linus' master branch: commit 16642a2e7b.

* tag 'omap-for-v3.7-rc1/fixes-cpufreq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: PM: MPU DVFS: use generic CPU device for MPU-SS
  cpufreq: OMAP: use get_cpu_device() instead of omap_device API
  cpufreq: OMAP: fix clock usage to be SoC independent, remove plat/ includes
  cpufreq: OMAP: remove unused <plat/omap-pm.h>
  cpufreq: OMAP: ensure valid clock rate before scaling
2012-10-09 15:00:57 -07:00
Olof Johansson
ccd7e49c24 Merge tag 'omap-for-v3.7-rc1/fixes-pm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Kevin Hilman <khilman@deeprootsystems.com> via Tony Lindgren:

OMAP PM related fixes for v3.7-rc

* tag 'omap-for-v3.7-rc1/fixes-pm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: SmartReflex: fix error path in init function
  ARM: OMAP: SmartReflex: select CONFIG_POWER_SUPPLY in Kconfig
  ARM: OMAP2+: PM: fix return value check in omap2_set_init_voltage()
  ARM: OMAP2+: SmartReflex: fix return value check in sr_dev_init()
  ARM: OMAP: omap_device: fix return value check in omap_device_build_ss()
  ARM: OMAP: fix return value check in beagle_opp_init()
2012-10-09 15:00:56 -07:00
Olof Johansson
aa8bd5969e Merge tag 'omap-for-v3.7-rc1/fixes-hwmod-clock-signed-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Paul Walmsley <paul@pwsan.com> via Tony Lindgren:

Some OMAP fixes for the 3.7 merge window, fixing mismerges, branch
integration issues, and bugs after the arm-soc merges.

* tag 'omap-for-v3.7-rc1/fixes-hwmod-clock-signed-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
  ARM: OMAP3: fix workaround for EMU clockdomain
  ARM: OMAP: omap3evm: fix new sparse warning
  ARM: OMAP2+: hwmod data: Fix PMU interrupt definitions
  ARM: am33xx: clk: Update clkdev table to add mcasp alias
2012-10-09 15:00:55 -07:00
Olof Johansson
125c967179 Merge tag 'omap-for-v3.7-rc1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

This branch contains one counter locking fix and an
alignment fix. Other fixes are warning fixes, fixes
for return value checks.

I've also included removal of some extra semicolons,
dropping of some duplicate includes, and an a change
for wl12xx enumeration that are not strictly fixes
but would be good to get out of the way for -rc1.

* tag 'omap-for-v3.7-rc1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  arm/omap: Replace board_ref_clock with enum values
  ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
  arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
  arch/arm/mach-omap2: Remove unecessary semicolon
  arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
  AM35xx: Add missing hwmod entry for the HDQ/1-Wire present in AM3505/3517 CPUs.
  ARM: OMAP2+: gpmc: annotate exit sections properly
  ARM: OMAP: fix return value check in realtime_counter_init()
  ARM: OMAP: hsmmc: fix return value check in omap_hsmmc_init_one()
  OMAPDSS: fix return value check in create_dss_pdev()
  ARM: OMAP2+: Add am335x evm and bone targets to common Makefile
  arm: increase FORCE_MAX_ZONEORDER for TI AM33XX
  ARM: OMAP: OMAP_DEBUG_LEDS needs to select LEDS_CLASS
  ARM: OMAP: rx51: Fix a section mismatch warn
  ARM: OMAP2+: Round of the carve out memory requested to section_size
  ARM: OMAP: counter: add locking to read_persistent_clock
2012-10-09 15:00:54 -07:00
Al Viro
37185b3324 um: get rid of pointless include "..." where include <...> will do
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-10-09 22:28:45 +02:00
Al Viro
382d95fdfa um: move sysrq.h out of include/shared
never used by userland-side objects

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-10-09 22:28:19 +02:00
Al Viro
8813f67439 um/x86: merge 32 and 64 bit variants of ptrace.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-10-09 22:28:17 +02:00
Al Viro
4301785c7c um/x86: merge 32 and 64bit variants of checksum.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-10-09 22:28:16 +02:00
Arnd Bergmann
bfbad32a63 ARM: pxa: armcore: fix PCI PIO warnings
The it8152 PCI host used on the pxa/cm_x2xx machines
uses the old-style I/O window registration. This should
eventually get converted to pci_ioremap_io() but for
now, let's cast the IT8152_IO_BASE constant to an integer
type to get rid of the warnings.

Without this patch, building cm_x2xx_defconfig results in:

arch/arm/common/it8152.c: In function 'it8152_pci_setup':
arch/arm/common/it8152.c:287:18: warning: assignment makes integer from pointer without a cast [enabled by default]
arch/arm/common/it8152.c:288:16: warning: assignment makes integer from pointer without a cast [enabled by default]
arch/arm/common/it8152.c:291:17: warning: assignment makes integer from pointer without a cast [enabled by default]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
2012-10-09 21:58:01 +02:00
Arnd Bergmann
21c8715f0a ARM: integrator: use __iomem pointers for MMIO, part 2
Due to some interesting merges in the integrator code, not
all users of mmio pointers were converted before, this
fixes all warnings that got introduced as a consequence.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-09 17:27:33 +02:00
Arnd Bergmann
c6e9fbbf4c ARM: assabet: fix bogus warning in get_assabet_scr (again)
Russell fixed this bogus warning before in 2f3eca8b4f "Shut up gcc
warning in assabet.c", but apparently gcc has become smarter (or dumber)
since 2005, and the same warning came up again.

This uses the uninitialized_var() macro to convince gcc that the
variable is actually being initialized. 100 times in fact.

Without this patch, building assabet_defconfig results in:

arch/arm/mach-sa1100/assabet.c: In function 'fixup_assabet':
arch/arm/mach-sa1100/assabet.c:397:6: warning: 'scr' may be used uninitialized in this function [-Wuninitialized]
arch/arm/mach-sa1100/assabet.c:389:16: note: 'scr' was declared here

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-09 17:27:01 +02:00
Arnd Bergmann
b3796d9208 ARM: shmobile: mark shmobile_init_late as __init
Patch 35f2b0bd59 "ARM: shmobile: Move definition of shmobile_init_late()
to header" moved the definition of the shmobile_init_late function, but
dropped the __init annotation, which is now causing warnings because
the function calls shmobile_suspend_init, which is also marked init.

Without this patch, building kota2_defconfig results in:

WARNING: vmlinux.o(.text+0xb7c8): Section mismatch in reference from the function shmobile_init_late() to the function .init.text:shmobile_suspend_init()
The function shmobile_init_late() references
the function __init shmobile_suspend_init().
This is often because shmobile_init_late lacks a __init
annotation or the annotation of shmobile_suspend_init is wrong.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Magnus Damm <damm@opensource.se>
Cc: Simon Horman <horms@verge.net.au>
2012-10-09 17:27:01 +02:00
David Woodhouse
ffe3150125 UAPI Disintegration 2012-10-09
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Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers

UAPI Disintegration 2012-10-09

Conflicts:
	MAINTAINERS
	arch/arm/configs/bcmring_defconfig
	arch/arm/mach-imx/clk-imx51-imx53.c
	drivers/mtd/nand/Kconfig
	drivers/mtd/nand/bcm_umi_nand.c
	drivers/mtd/nand/nand_bcm_umi.h
	drivers/mtd/nand/orion_nand.c
2012-10-09 15:04:25 +01:00
Martin Schwidefsky
ab08ff34b4 UAPI Disintegration 2012-10-09
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Merge tag 'disintegrate-s390-20121009' of
git://git.infradead.org/users/dhowells/linux-headers

Pull UAPI patchset from David Howells:
 "Can you merge the following branch into the s390 tree please.
  This is to complete part of the UAPI disintegration for which the
  preparatory patches were pulled recently."

Conflicts:
	arch/s390/include/asm/chpid.h
2012-10-09 14:18:10 +02:00
Martin Schwidefsky
450e47da67 s390/entry: fix svc number for TIF_SYSCALL system call restart
The load of the svc number in the TIF_SYSCALL restart path needs to be
done with an instruction that loads all 64 bits of %r1, 'lh' only loads
32 bits. If the upper half of %r1 is not zero and has the msb set,
entry64.S will try to execute an svc with a really large number.
What will be in the upper half of %r1 depends on the code generated by
gcc for the functions on the do_signal() callchain.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-09 14:17:02 +02:00
Heiko Carstens
fc7e48aad3 s390/mm,vmem: fix vmem_add_mem()/vmem_remove_range()
vmem_add_mem() should only then insert a large page if pmd_none() is true
for the specific entry. We might have a leftover from a previous mapping.
In addition make vmem_remove_range()'s page table walk code more complete
and fix a couple of potential endless loops (which can never happen :).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-09 14:17:01 +02:00
Heiko Carstens
c972cc60c2 s390/vmalloc: have separate modules area
Add a special module area on top of the vmalloc area, which may be only
used for modules and bpf jit generated code.
This makes sure that inter module branches will always happen without a
trampoline and in addition having all the code within a 2GB frame is
branch prediction unit friendly.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-09 14:17:01 +02:00
Sebastian Ott
c6cfc207d4 s390/css_chars: remove superfluous ifdef
No need for an ifdef __KERNEL__ since css_chars.h is not exported.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-09 14:17:00 +02:00
Sebastian Ott
4dcc2a4d6c s390/chsc: make headers usable
Make sure that exported headers are save to be included by userspace
exploiting /dev/chsc.

Reported-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-09 14:17:00 +02:00