Commit Graph

1984 Commits

Author SHA1 Message Date
Linus Torvalds 587a9e1f95 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Make sys_atomic_cmpxchg_32 work on classic m68k
  m68k/apollo: Rename "timer" to "apollo_timer"
  zorro: Remove unused zorro_bus.devices
  m68k: Remove never used asm/shm.h
  m68k/sun3: Remove unselectable code in prom_init()
  m68k: Use asm-generic version of <asm/sections.h>
  m68k: Replace m68k-specific _[se]bss by generic __bss_{start,stop}
  mtd/uclinux: Use generic __bss_stop instead of _ebss
  m68knommu: Allow ColdFire CPUs to use unaligned accesses
  m68k: Remove five unused headers
  m68k: CPU32 does not support unaligned accesses
  m68k: Introduce config option CPU_HAS_NO_UNALIGNED
  m68k: delay, muldi3 - Use CONFIG_CPU_HAS_NO_MULDIV64
  m68k: Move CPU_HAS_* config options
  m68k: Remove duplicate FPU config option
  m68knommu: Clean up printing of sections
  m68k: Use asm-generic version of <asm/types.h>
  m68k: Use Kbuild logic to import asm-generic headers
2012-08-03 10:52:41 -07:00
Guennadi Liakhovetski 08298f0612 sh: explicitly include sh_dma.h in setup-sh7722.c
setup-sh7722.c defines several objects, whose types are defined in
sh_dma.h, so, it has to be included explicitly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-02 15:37:26 +09:00
Kuninori Morimoto 8a87776dee sh: sh7724: fixup renesas_usbhs clock settings
8cc88a55b0
(sh: sh7724: use runtime PM implementation) broke sh7724 clocks.

renesas_usbhs needs HWBLK_USB0/1 clock on sh7724

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-01 17:14:40 +09:00
Shimoda, Yoshihiro b9ccfda293 sh: modify the sh_dmae_slave_config for RSPI in setup-sh7757
Modify the sh7757_dmae1_slave to add paramters of RSPI's slave_id.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-26 14:16:09 +09:00
Linus Torvalds c511dc1fb6 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine update from Vinod Koul:
 "This time we have a new dmaengine driver from the tegra folks.  Also
  we have Guennadi's cleanup of sh drivers which incudes a library for
  sh drivers.  And the usual odd fixes in bunch of drivers and some nice
  cleanup of dw_dmac from Andy."

Fix up conflicts in drivers/mmc/host/sh_mmcif.c

* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
  dmaengine: Cleanup logging messages
  mmc: sh_mmcif: switch to the new DMA channel allocation and configuration
  dma: sh: provide a migration path for slave drivers to stop using .private
  dma: sh: use an integer slave ID to improve API compatibility
  dmaengine: shdma: prepare to stop using struct dma_chan::private
  sh: remove unused DMA device pointer from SIU platform data
  ASoC: siu: don't use DMA device for channel filtering
  dmaengine: shdma: (cosmetic) simplify a static function
  dmaengine: at_hdmac: add a few const qualifiers
  dw_dmac: use 'u32' for LLI structure members, not dma_addr_t
  dw_dmac: mark dwc_dump_lli inline
  dma: mxs-dma: Export missing symbols from mxs-dma.c
  dma: shdma: convert to the shdma base library
  ASoC: fsi: prepare for conversion to the shdma base library
  usb: renesas_usbhs: prepare for conversion to the shdma base library
  ASoC: siu: prepare for conversion to the shdma base library
  serial: sh-sci: prepare for conversion to the shdma base library
  mmc: sh_mobile_sdhi: prepare for conversion to the shdma base library
  mmc: sh_mmcif: remove unneeded struct sh_mmcif_dma, prepare to shdma conversion
  dma: shdma: prepare for conversion to the shdma base library
  ...
2012-07-24 17:12:54 -07:00
Linus Torvalds 47b170af84 SuperH updates for 3.6-rc1 merge window
- Migration off of old-style dynamic IRQ API.
 
 - irqdomain and generic irq chip propagation.
 
 - div4/6 clock consolidation, another step towards co-existing
   with the common struct clk infrastructure.
 
 - Extensive PFC rework
   - Decoupling GPIO from pin state.
   - Initial pinctrl support to facilitate incremental migration
     off of legacy pinmux.
   - gpiolib support made optional, and made pinctrl-backed.
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt:

 - Migration off of old-style dynamic IRQ API.

 - irqdomain and generic irq chip propagation.

 - div4/6 clock consolidation, another step towards co-existing with the
   common struct clk infrastructure.

 - Extensive PFC rework
   - Decoupling GPIO from pin state.
   - Initial pinctrl support to facilitate incremental migration off of
     legacy pinmux.
   - gpiolib support made optional, and made pinctrl-backed.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (38 commits)
  sh: pfc: pin config get/set support.
  sh: pfc: Prefer DRV_NAME over KBUILD_MODNAME.
  sh: pfc: pinctrl legacy group support.
  sh: pfc: Ignore pinmux GPIOs with invalid enum IDs.
  sh: pfc: Export pinctrl binding init symbol.
  sh: pfc: Error out on pinctrl init resolution failure.
  sh: pfc: Make pr_fmt consistent across pfc drivers.
  sh: pfc: pinctrl legacy function support.
  sh: pfc: Rudimentary pinctrl-backed GPIO support.
  sh: pfc: Dumb GPIO stringification.
  sh: pfc: Shuffle PFC support core.
  sh: pfc: Verify pin type encoding size at build time.
  sh: pfc: Kill off unused pinmux bias flags.
  sh: pfc: Make gpio chip support optional where possible.
  sh: pfc: Split out gpio chip support.
  sh64: Fix up section mismatch warnings.
  sh64: Attempt to make reserved insn trap handler resemble C.
  sh: Consolidate die definitions for trap handlers.
  sh64: Kill off old exception debugging helpers.
  sh64: Use generic unaligned access control/counters.
  ...
2012-07-23 19:05:53 -07:00
Paul Mundt 9ff561fdf7 Merge branch 'common/pinctrl' into sh-latest 2012-07-20 16:42:59 +09:00
Guennadi Liakhovetski 1e7f07b539 sh: remove unused DMA device pointer from SIU platform data
The SIU ALSA driver is not using the DMA device pointer for DMA channel
filtering any more, it can be now removed.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-07-20 11:23:44 +05:30
Paul Mundt 64941d8930 sh: Fix up se7721 GPIOLIB=y build warnings.
Presently the SH7720/21 serial code uses asm/gpio.h to get at the CPU
GPIO port definitions, but in the case of GPIOLIB=y this also includes
references to generic GPIOLIB routines that we don't have any function
declarations for, tripping up on -Werror=implicit-function-declaration
with newer gcc versions:

  CC      arch/sh/kernel/cpu/sh3/serial-sh7720.o
In file included from include/linux/sh_pfc.h:14:0,
                 from arch/sh/include/asm/gpio.h:23,
                 from arch/sh/kernel/cpu/sh3/serial-sh7720.c:5:
include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
include/asm-generic/gpio.h:220:2: error: implicit declaration of function '__gpio_get_value' [-Werror=implicit-function-declaration]
include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep':
include/asm-generic/gpio.h:226:2: error: implicit declaration of function '__gpio_set_value' [-Werror=implicit-function-declaration]
In file included from arch/sh/include/asm/gpio.h:23:0,
                 from arch/sh/kernel/cpu/sh3/serial-sh7720.c:5:
include/linux/sh_pfc.h: At top level:
include/linux/sh_pfc.h:121:19: error: field 'chip' has incomplete type

Switch to using the cpu/ version for the port definitions explicitly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-02 15:06:22 +09:00
Nobuhiro Iwamatsu ad3337cb38 sh: Convert sh_clk_mstp32_register to sh_clk_mstp_register
sh_clk_mstp32_register is deprecated. This convert to sh_clk_mstp_register.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-28 16:45:34 +09:00
Geert Uytterhoeven 363737d664 mtd/uclinux: Use generic __bss_stop instead of _ebss
The standard (see BSS_SECTION() in <asm-generic/vmlinux.lds.h> and
<asm-generic/sections.h>) symbol for the end of BSS is __bss_stop.
This allows to remove all local declarations that have been added to
several architectures just to please CONFIG_MTD_UCLINUX.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2012-06-27 09:59:43 +02:00
Paul Mundt 0375a73c6f sh64: Attempt to make reserved insn trap handler resemble C.
This has been long overdue. No functional changes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-14 14:46:36 +09:00
Paul Mundt 5f857bce21 sh: Consolidate die definitions for trap handlers.
This kills off the _64 versions and consolidates on the more robust _32
versions instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-14 14:18:51 +09:00
Paul Mundt 37c9ee0161 sh64: Kill off old exception debugging helpers.
There's not much here that we can't get at through alternate means (aside
from the TLB contents, but that doesn't belong here anyways). Most of
this information is already provided by the sh32 routines, which we'll
consolidate on next.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-14 14:12:18 +09:00
Paul Mundt db218b3d55 sh64: Use generic unaligned access control/counters.
This switches over from the special-casing that sh64 had and to the model
that's being employed for sh32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-14 14:05:24 +09:00
Paul Mundt af68d8f06d Merge branch 'sh/genirq' into sh-latest 2012-06-13 12:12:52 +09:00
Paul Mundt f21efd4536 Merge branch 'sh/multi-unwinders' into sh-latest 2012-06-13 12:12:14 +09:00
Paul Mundt 380622e9ff Merge branches 'sh/urgent', 'sh/core', 'sh/clockevents', 'sh/asm-generic' and 'sh/trivial' into sh-fixes-for-linus 2012-06-13 12:01:33 +09:00
Paul Mundt cba8df4be3 sh: use the new generic strnlen_user() function
This discards both the _32 and _64 versions in favour of the consolidated
generic one.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-13 10:28:37 +09:00
Paul Mundt 0e100e11bd sh: switch to generic strncpy_from_user().
This kills off the special sh32/64 versions and adopts the generic
version. It should be possible to optimize this for SH-4A unaligned
loads, but this is a corner case that can be supported incrementally.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-13 10:28:16 +09:00
Al Viro efee984c27 new helper: signal_delivered()
Does block_sigmask() + tracehook_signal_handler();  called when
sigframe has been successfully built.  All architectures converted
to it; block_sigmask() itself is gone now (merged into this one).

I'm still not too happy with the signature, but that's a separate
story (IMO we need a structure that would contain signal number +
siginfo + k_sigaction, so that get_signal_to_deliver() would fill one,
signal_delivered(), handle_signal() and probably setup...frame() -
take one).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:52 -04:00
Al Viro 77097ae503 most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
Only 3 out of 63 do not.  Renamed the current variant to __set_current_blocked(),
added set_current_blocked() that will exclude unblockable signals, switched
open-coded instances to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:51 -04:00
Al Viro a610d6e672 pull clearing RESTORE_SIGMASK into block_sigmask()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:49 -04:00
Al Viro 5754f412a3 sh64: failure to build sigframe != signal without handler
it's actually "send me SIGSEGV"...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:49 -04:00
Al Viro b7f9a11a6c new helper: sigmask_to_save()
replace boilerplate "should we use ->saved_sigmask or ->blocked?"
with calls of obvious inlined helper...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:48 -04:00
Al Viro 51a7b448d4 new helper: restore_saved_sigmask()
first fruits of ..._restore_sigmask() helpers: now we can take
boilerplate "signal didn't have a handler, clear RESTORE_SIGMASK
and restore the blocked mask from ->saved_mask" into a common
helper.  Open-coded instances switched...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-01 12:58:47 -04:00
Linus Torvalds fb21affa49 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull second pile of signal handling patches from Al Viro:
 "This one is just task_work_add() series + remaining prereqs for it.

  There probably will be another pull request from that tree this
  cycle - at least for helpers, to get them out of the way for per-arch
  fixes remaining in the tree."

Fix trivial conflict in kernel/irq/manage.c: the merge of Andrew's pile
had brought in commit 97fd75b7b8 ("kernel/irq/manage.c: use the
pr_foo() infrastructure to prefix printks") which changed one of the
pr_err() calls that this merge moves around.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  keys: kill task_struct->replacement_session_keyring
  keys: kill the dummy key_replace_session_keyring()
  keys: change keyctl_session_to_parent() to use task_work_add()
  genirq: reimplement exit_irq_thread() hook via task_work_add()
  task_work_add: generic process-context callbacks
  avr32: missed _TIF_NOTIFY_RESUME on one of do_notify_resume callers
  parisc: need to check NOTIFY_RESUME when exiting from syscall
  move key_repace_session_keyring() into tracehook_notify_resume()
  TIF_NOTIFY_RESUME is defined on all targets now
2012-05-31 18:47:30 -07:00
Anton Vorontsov 1198c8b9af sh: use clear_tasks_mm_cpumask()
Checking for process->mm is not enough because process' main thread may
exit or detach its mm via use_mm(), but other threads may still have a
valid mm.

To fix this we would need to use find_lock_task_mm(), which would walk up
all threads and returns an appropriate task (with task lock held).

clear_tasks_mm_cpumask() has the issue fixed, so let's use it.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:30 -07:00
Paul Mundt 3a9485da96 sh64: Fix up fallout from generic init_task conversion.
In the generic init_task migration sh64 silently lost its
fake_swapper_regs definition, resulting in link errors.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-24 15:07:47 +09:00
Paul Mundt 4945326499 sh64: Convert to unwinder API.
This switches over to use the sh unwinder API which brings it all in line
with the general sh routines (which we shuffle around at the same time),
and lets us kill off more sh64-specific cruft.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-24 15:03:46 +09:00
Paul Mundt 76b3866245 sh: Kill off now unused arch_probe_nr_irqs().
Now that legacy pre-allocation is done away with, we can just use the
generic stub in kernel/softirq.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-24 13:59:35 +09:00
Paul Mundt 936c163ab2 sh: arch/sh/kernel/process.c needs asm/fpu.h for unlazy_fpu().
Linus tried to fix up sh fallout from the x86 fpu state cleanup merge and
failed. Add the missing include to get it building again.

  CC      arch/sh/kernel/process.o
arch/sh/kernel/process.c: In function 'arch_dup_task_struct':
arch/sh/kernel/process.c:23:2: error: implicit declaration of function 'unlazy_fpu'

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-24 13:03:20 +09:00
Al Viro a42c6ded82 move key_repace_session_keyring() into tracehook_notify_resume()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-23 22:09:20 -04:00
Linus Torvalds f9369910a6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull first series of signal handling cleanups from Al Viro:
 "This is just the first part of the queue (about a half of it);
  assorted fixes all over the place in signal handling.

  This one ends with all sigsuspend() implementations switched to
  generic one (->saved_sigmask-based).

  With this, a bunch of assorted old buglets are fixed and most of the
  missing bits of NOTIFY_RESUME hookup are in place.  Two more fixes sit
  in arm and um trees respectively, and there's a couple of broken ones
  that need obvious fixes - parisc and avr32 check TIF_NOTIFY_RESUME
  only on one of two codepaths; fixes for that will happen in the next
  series"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (55 commits)
  unicore32: if there's no handler we need to restore sigmask, syscall or no syscall
  xtensa: add handling of TIF_NOTIFY_RESUME
  microblaze: drop 'oldset' argument of do_notify_resume()
  microblaze: handle TIF_NOTIFY_RESUME
  score: add handling of NOTIFY_RESUME to do_notify_resume()
  m68k: add TIF_NOTIFY_RESUME and handle it.
  sparc: kill ancient comment in sparc_sigaction()
  h8300: missing checks of __get_user()/__put_user() return values
  frv: missing checks of __get_user()/__put_user() return values
  cris: missing checks of __get_user()/__put_user() return values
  powerpc: missing checks of __get_user()/__put_user() return values
  sh: missing checks of __get_user()/__put_user() return values
  sparc: missing checks of __get_user()/__put_user() return values
  avr32: struct old_sigaction is never used
  m32r: struct old_sigaction is never used
  xtensa: xtensa_sigaction doesn't exist
  alpha: tidy signal delivery up
  score: don't open-code force_sigsegv()
  cris: don't open-code force_sigsegv()
  blackfin: don't open-code force_sigsegv()
  ...
2012-05-23 18:11:45 -07:00
Linus Torvalds ec0d7f18ab Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull fpu state cleanups from Ingo Molnar:
 "This tree streamlines further aspects of FPU handling by eliminating
  the prepare_to_copy() complication and moving that logic to
  arch_dup_task_struct().

  It also fixes the FPU dumps in threaded core dumps, removes and old
  (and now invalid) assumption plus micro-optimizes the exit path by
  avoiding an FPU save for dead tasks."

Fixed up trivial add-add conflict in arch/sh/kernel/process.c that came
in because we now do the FPU handling in arch_dup_task_struct() rather
than the legacy (and now gone) prepare_to_copy().

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, fpu: drop the fpu state during thread exit
  x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state()
  coredump: ensure the fpu state is flushed for proper multi-threaded core dump
  fork: move the real prepare_to_copy() users to arch_dup_task_struct()
2012-05-23 10:59:07 -07:00
Linus Torvalds 1d767cae4d SuperH updates for 3.5-rc1 merge window
- New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
 - New boards: RSK2+SH7264, RSK2+SH7269
 - Unbreaking kgdb for SMP
 - Consolidation of _32/_64 page fault handling.
 - watchdog and legacy DMA chainsawing, part 1
 - Conversion to evt2irq() hwirq lookup, to support relocation
   of vectored IRQs for irqdomains.
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt:
 - New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
 - New boards: RSK2+SH7264, RSK2+SH7269
 - Unbreaking kgdb for SMP
 - Consolidation of _32/_64 page fault handling.
 - watchdog and legacy DMA chainsawing, part 1
 - Conversion to evt2irq() hwirq lookup, to support relocation of
   vectored IRQs for irqdomains.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (98 commits)
  sh: intc: Kill off special reservation interface.
  sh: Enable PIO API for hp6xx and se770x.
  sh: Kill off machvec IRQ hinting.
  sh: dma: More legacy cpu dma chainsawing.
  sh: Kill off MAX_DMA_ADDRESS leftovers.
  sh: Tidy up some of the cpu legacy dma header mess.
  sh: Move sh4a dma header from cpu-sh4 to cpu-sh4a.
  sh64: Fix up vmalloc fault range check.
  Revert "sh: Ensure fixmap and store queue space can co-exist."
  serial: sh-sci: Fix for port types without BRI interrupts.
  sh: legacy PCI evt2irq migration.
  sh: cpu dma evt2irq migration.
  sh: sh7763rdp evt2irq migration.
  sh: sdk7780 evt2irq migration.
  sh: migor evt2irq migration.
  sh: landisk evt2irq migration.
  sh: kfr2r09 evt2irq migration.
  sh: ecovec24 evt2irq migration.
  sh: ap325rxa evt2irq migration.
  sh: urquell evt2irq migration.
  ...
2012-05-23 09:00:40 -07:00
Paul Mundt 5f19f14fed sh: intc: Kill off special reservation interface.
At present reserving the IRLs in the IRQ bitmap in addition to the
dropping of the legacy IRQ pre-allocation prevent IRL IRQs from being
allocated for the x3proto board.

The only reason to permit reservations was to lock down possible hardware
vectors prior to dynamic IRQ scanning, but this doesn't matter much given
that the hardware controller configuration is sorted before we get around
to doing any dynamic IRQ allocation anyways. Beyond that, all of the
tables are __init annotated, so quite a bit more work would need to be
done to support reconfiguring things like IRL controllers on the fly,
much more than would ever make it worth the hassle.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-22 19:07:55 +09:00
Al Viro a46808e1b7 sh: missing checks of __get_user()/__put_user() return values
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21 23:59:21 -04:00
Al Viro 9ef461adf9 sh: switch to saved_sigmask-based sigsuspend()/rt_sigsuspend()
Complete the move of sh64 to it, trim the crap from prototypes,
tidy up a bit.  Infrastructure in do_signal() had already been
there, in signal_64 as well as in signal_32 (where it was already
used).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21 23:58:06 -04:00
Al Viro 68f3f16d9a new helper: sigsuspend()
guts of saved_sigmask-based sigsuspend/rt_sigsuspend.  Takes
kernel sigset_t *.

Open-coded instances replaced with calling it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21 23:52:30 -04:00
Linus Torvalds cb60e3e65c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "New notable features:
   - The seccomp work from Will Drewry
   - PR_{GET,SET}_NO_NEW_PRIVS from Andy Lutomirski
   - Longer security labels for Smack from Casey Schaufler
   - Additional ptrace restriction modes for Yama by Kees Cook"

Fix up trivial context conflicts in arch/x86/Kconfig and include/linux/filter.h

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (65 commits)
  apparmor: fix long path failure due to disconnected path
  apparmor: fix profile lookup for unconfined
  ima: fix filename hint to reflect script interpreter name
  KEYS: Don't check for NULL key pointer in key_validate()
  Smack: allow for significantly longer Smack labels v4
  gfp flags for security_inode_alloc()?
  Smack: recursive tramsmute
  Yama: replace capable() with ns_capable()
  TOMOYO: Accept manager programs which do not start with / .
  KEYS: Add invalidation support
  KEYS: Do LRU discard in full keyrings
  KEYS: Permit in-place link replacement in keyring list
  KEYS: Perform RCU synchronisation on keys prior to key destruction
  KEYS: Announce key type (un)registration
  KEYS: Reorganise keys Makefile
  KEYS: Move the key config into security/keys/Kconfig
  KEYS: Use the compat keyctl() syscall wrapper on Sparc64 for Sparc32 compat
  Yama: remove an unused variable
  samples/seccomp: fix dependencies on arch macros
  Yama: add additional ptrace scopes
  ...
2012-05-21 20:27:36 -07:00
Paul Mundt 63dc02bde6 sh: Kill off machvec IRQ hinting.
Everything is using sparseirq these days, so we have no need to
arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation
likewise has no meaning for us, so that's killed off too. We now depend
on nr_irqs expansion by the generic hardirq layer instead.

It's also worth noting that the majority of boards had completely bogus
values for their nr_irqs relative to their CPU and configurations, so
this ends up correcting behaviour for quite a few platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-21 17:54:01 +09:00
Paul Mundt c1dbccc3c7 Merge branch 'sh/evt2irq-migration' into sh-latest
Conflicts:
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7757.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 18:13:27 +09:00
Paul Mundt 85ee6b06cc sh: sh7720 evt2irq migration.
Migrate SH7720 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:41:00 +09:00
Paul Mundt 5d0af76968 sh: sh7710/sh7712 evt2irq migration.
Migrate SH7710/SH7712 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:37:51 +09:00
Paul Mundt a9302a64d4 sh: sh7706/sh7707/sh7709/sh7709 evt2irq migration.
Migrate SH770x to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:34:48 +09:00
Paul Mundt e91b2a40a1 sh: sh7705 evt2irq migration.
Migrate SH7705 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:31:11 +09:00
Paul Mundt 79ce21a64b sh: sh7760 evt2irq migration.
Migrate SH7760 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:28:11 +09:00
Paul Mundt 20688c3093 sh: sh7750 evt2irq migration.
Migrate SH7750 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:18:35 +09:00
Paul Mundt 054f0378a5 sh: sh4-202 evt2irq migration.
Migrate SH4-202 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:15:11 +09:00
Paul Mundt d8be10bbf3 sh: sh-x3 evt2irq migration.
Migrate SH-X3 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:11:22 +09:00
Paul Mundt ddb3208497 sh: sh7785 evt2irq migration.
Migrate SH7785 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 14:04:49 +09:00
Paul Mundt 89ed34f348 sh: sh7780 evt2irq migration.
Migrate SH7780 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:59:18 +09:00
Paul Mundt f454314cff sh: sh7770 evt2irq migration.
Migrate SH7770 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:52:22 +09:00
Paul Mundt ea3235d962 sh: sh7763 evt2irq migration.
Migrate SH7763 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:46:34 +09:00
Paul Mundt f5bccdc09a sh: sh7757 evt2irq migration.
Migrate SH7757 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:24:34 +09:00
Paul Mundt 16e9515358 sh: sh7724 evt2irq migration.
Migrate SH7724 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 13:12:24 +09:00
Paul Mundt 933b954386 sh: sh7723 evt2irq migration.
Migrate SH7723 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:57:59 +09:00
Paul Mundt 29b53e375b sh: sh7722 evt2irq migration.
Migrate SH7722 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:49:38 +09:00
Paul Mundt 58749400c5 sh: sh7366 evt2irq migration.
Migrate SH7366 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:43:11 +09:00
Paul Mundt de410b5369 sh: sh7343 evt2irq migration.
Migrate SH7343 to evt2irq() backed hwirq lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:38:12 +09:00
Paul Mundt e55387e9bf sh: sh7786 evt2irq migration.
This migrates SH7786 to evt2irq() backed hwirq lookup rather than
using an open-coded calculation. This will make it possible to reposition
the vector base at a later point in time.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18 12:29:22 +09:00
Nobuhiro Iwamatsu 00d6025e58 sh: Fix mistake of the member variable of plat_sci_port for SH7343
The current code was going to initialize irq of plat_sci_port.
Not irq, irqs is right.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-17 16:45:40 +09:00
Suresh Siddha 55ccf3fe3f fork: move the real prepare_to_copy() users to arch_dup_task_struct()
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of
the architectures and the rest following the x86 model of flushing the extended
register state like fpu there.

Remove it and use the arch_dup_task_struct() instead.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-05-16 15:16:26 -07:00
Paul Mundt 4de5185629 sh64: Invert page fault fast-path error path values.
This brings the sh64 version in line with the sh32 one with regards to
how errors are handled. Base work for further unification of the
implementations.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-14 16:44:45 +09:00
Paul Mundt 9a7b7739f9 sh64: Utilize thread fault code encoding.
This plugs in fault code encoding for the sh64 page fault, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-14 15:07:52 +09:00
Paul Mundt 5a1dc78a38 sh: Support thread fault code encoding.
This provides a simple interface modelled after sparc64/m32r to encode
the error code in the upper byte of thread_info for finer-grained
handling in the page fault path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-14 14:57:28 +09:00
Paul Mundt c4f10e5cd7 sh: Fix up comment noise in sh7269 pinmux code.
The build complains about a /* nested within a comment block, so just
tidy up the formatting.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 17:23:58 +09:00
Paul Mundt bcb86e0adb Merge branches 'sh/wdt' and 'sh/rsk-updates' into sh-latest
Conflicts:
	arch/sh/Kconfig

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 17:20:56 +09:00
Phil Edworthy ef0fa5331a sh: Add pinmux for sh7269
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 17:20:03 +09:00
Phil Edworthy 0b25b7c8cb sh: Add sh7269 device
This is an sh2a device (max 266MHz) with FPU, video display
controller (VDC), 8 serial ports, 4 I2C channels, 3 CAN ports,
SD and on-chip USB.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 17:19:59 +09:00
Paul Mundt 15f99cbd07 Merge branch 'sh/rsk-updates' into sh-latest
Conflicts:
	arch/sh/Kconfig

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 11:51:07 +09:00
Phil Edworthy 41797f7548 sh: Add pinmux for sh7264
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 11:49:58 +09:00
Phil Edworthy 51ce30684e sh: Add sh7264 device
This is an sh2a device with FPU, video display controller (VDC),
8 serial ports, 3 I2C channels, 2 CAN ports, SD and on-chip USB.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10 11:49:54 +09:00
Thomas Gleixner df9a7b9b5d sh-use-common-threadinfo-allocator
The core now has a threadinfo allocator which uses a kmemcache when
THREAD_SIZE < PAGE_SIZE.

Deal with the xstate cleanup in the new arch_release_task_struct()
function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120505150142.189348931@linutronix.de
2012-05-08 14:08:45 +02:00
Thomas Gleixner 86627c93b3 sh: Remove cpu_idle_wait()
cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120507175652.461648208@linutronix.de
2012-05-08 12:35:07 +02:00
Thomas Gleixner 41fe22f655 sh: Use generic init_task
Same code. Use the generic version. The special Makefile treatment is
pointless anyway as init_task.o contains only data which is handled by
the linker script. So no point on being treated like head text.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120503085035.398257169@linutronix.de
2012-05-05 13:00:25 +02:00
Thomas Gleixner ea0588cb6b sh: Use generic idle thread allocation
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120420124557.855203626@linutronix.de
2012-04-26 12:06:12 +02:00
Thomas Gleixner 8239c25f47 smp: Add task_struct argument to __cpu_up()
Preparatory patch to make the idle thread allocation for secondary
cpus generic.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20120420124556.964170564@linutronix.de
2012-04-26 12:06:09 +02:00
Paul Mundt b2212ea41d sh64: Kill off unused trap_no/error_code from thread_struct.
While the trap number and error code are passed around for debugging
purposes, this occurs wholly independently of the thread struct values.
These values were never part of the sigcontext ABI and are thus never
passed anywhere, so we can just kill them off across the board.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-19 17:52:20 +09:00
Paul Mundt fb56a91922 Merge branches 'sh/st-integration' and 'sh/stackprotector' into sh-latest 2012-04-19 17:31:59 +09:00
Filippo Arcidiacono 5d920bb929 sh: initial stack protector support.
This implements basic -fstack-protector support, based on the early ARM
version in c743f38013. The SMP case is
limited to the initial canary value, while the UP case handles per-task
granularity (limited to 32-bit sh until a new enough sh64 compiler
manifests itself).

Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Reviewed-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-19 15:45:57 +09:00
Will Drewry e4da89d02f seccomp: ignore secure_computing return values
This change is inspired by
  https://lkml.org/lkml/2012/4/16/14
which fixes the build warnings for arches that don't support
CONFIG_HAVE_ARCH_SECCOMP_FILTER.

In particular, there is no requirement for the return value of
secure_computing() to be checked unless the architecture supports
seccomp filter.  Instead of silencing the warnings with (void)
a new static inline is added to encode the expected behavior
in a compiler and human friendly way.

v2: - cleans things up with a static inline
    - removes sfr's signed-off-by since it is a different approach
v1: - matches sfr's original change

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Will Drewry <wad@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-18 12:24:50 +10:00
Paul Mundt 9d773d378d Merge branch 'sh/kgdb' into sh-latest 2012-04-17 16:22:04 +09:00
Nobuhiro Iwamatsu 856cb4bb33 sh: Add support pinmux for SH7734
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:20:26 +09:00
Nobuhiro Iwamatsu fea88a0c02 sh: Add initial support for SH7734 CPU subtype
This implements initial support for the SH7734.
This adds support SCIF, TMU and RTC.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:20:23 +09:00
Nobuhiro Iwamatsu e00e7cb3b7 sh: sh2: Change the specification method of IRQ to SCIx_IRQ_MUXED
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this.
This is correction to the SH2/SH2A series.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:17:33 +09:00
Nobuhiro Iwamatsu 545f3bcf32 sh: sh3: Change the specification method of IRQ to SCIx_IRQ_MUXED
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this.
And change use to evt2irq(), without specifying the value of IRQ directly.
This is correction to the SH3 series.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:17:32 +09:00
Nobuhiro Iwamatsu 51edfb3375 sh: sh4: Change the specification method of IRQ to SCIx_IRQ_MUXED
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this.
And change use to evt2irq(), without specifying the value of IRQ directly.
This is correction to the SH4 series.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:17:31 +09:00
Nobuhiro Iwamatsu eb0cdbe6b8 sh: sh4a: Change the specification method of IRQ to SCIx_IRQ_MUXED
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this.
And change use to evt2irq(), without specifying the value of IRQ directly.
This is correction to the SH4A series.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17 16:17:30 +09:00
Paul Mundt fd34ef9bc4 sh: kgdb: Fix up NULL pointer deref by kgdb_nmicallback.
kgdb_nmicallback expects valid register state, so just fetch the register
state with get_irq_regs() as on other platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10 14:22:39 +09:00
Paul Mundt 10c5e4e137 sh: kgdb: Fill out sleeping_thread_to_gdb_regs() state.
Presently we're using a pretty dumbed-down implementation that copies
over register state visible from the thread info, leaving the bulk of the
switch_to state uncopied.

Given that we're also depending on register bank toggling for switch_to
optimization we ought to also explicitly zero out the GP regs that reside
in an alternate bank in order to prevent handing back garbage.

There are a few extra registers that we have state for in switch_to, so
copy those over while we're at it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10 14:00:30 +09:00
Paul Mundt fd03e81812 sh: kgdb: Individual register get/set support.
This updates sh following the generic kgdb changes adding support
for individual register get/set for kgdb/kdb use.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10 13:42:56 +09:00
Paul Mundt 14f087d839 sh: kgdb: Fix up basic SMP support.
kgdb needs a kgdb_roundup_cpus() definition in the architecture backend,
so just copy over the MIPS version, which already does what we want.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10 12:39:55 +09:00
Linus Torvalds 664481ed45 SuperH updates for 3.4-rc1
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: fix clock-sh7757 for the latest sh_mobile_sdhi driver
  serial: sh-sci: use serial_port_in/out vs sci_in/out.
  sh: vsyscall: Fix up .eh_frame generation.
  sh: dma: Fix up device attribute mismatch from sysdev fallout.
  sh: dwarf unwinder depends on SHcompact.
  sh: fix up fallout from system.h disintegration.
2012-04-07 09:52:46 -07:00
Linus Torvalds 58bca4a8fa Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA mapping branch from Marek Szyprowski:
 "Short summary for the whole series:

  A few limitations have been identified in the current dma-mapping
  design and its implementations for various architectures.  There exist
  more than one function for allocating and freeing the buffers:
  currently these 3 are used dma_{alloc, free}_coherent,
  dma_{alloc,free}_writecombine, dma_{alloc,free}_noncoherent.

  For most of the systems these calls are almost equivalent and can be
  interchanged.  For others, especially the truly non-coherent ones
  (like ARM), the difference can be easily noticed in overall driver
  performance.  Sadly not all architectures provide implementations for
  all of them, so the drivers might need to be adapted and cannot be
  easily shared between different architectures.  The provided patches
  unify all these functions and hide the differences under the already
  existing dma attributes concept.  The thread with more references is
  available here:

    http://www.spinics.net/lists/linux-sh/msg09777.html

  These patches are also a prerequisite for unifying DMA-mapping
  implementation on ARM architecture with the common one provided by
  dma_map_ops structure and extending it with IOMMU support.  More
  information is available in the following thread:

    http://thread.gmane.org/gmane.linux.kernel.cross-arch/12819

  More works on dma-mapping framework are planned, especially in the
  area of buffer sharing and managing the shared mappings (together with
  the recently introduced dma_buf interface: commit d15bd7ee44
  "dma-buf: Introduce dma buffer sharing mechanism").

  The patches in the current set introduce a new alloc/free methods
  (with support for memory attributes) in dma_map_ops structure, which
  will later replace dma_alloc_coherent and dma_alloc_writecombine
  functions."

People finally started piping up with support for merging this, so I'm
merging it as the last of the pending stuff from the merge window.
Looks like pohmelfs is going to wait for 3.5 and more external support
for merging.

* 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  common: DMA-mapping: add NON-CONSISTENT attribute
  common: DMA-mapping: add WRITE_COMBINE attribute
  common: dma-mapping: introduce mmap method
  common: dma-mapping: remove old alloc_coherent and free_coherent methods
  Hexagon: adapt for dma_map_ops changes
  Unicore32: adapt for dma_map_ops changes
  Microblaze: adapt for dma_map_ops changes
  SH: adapt for dma_map_ops changes
  Alpha: adapt for dma_map_ops changes
  SPARC: adapt for dma_map_ops changes
  PowerPC: adapt for dma_map_ops changes
  MIPS: adapt for dma_map_ops changes
  X86 & IA64: adapt for dma_map_ops changes
  common: dma-mapping: introduce generic alloc() and free() methods
2012-04-04 17:13:43 -07:00
Shimoda, Yoshihiro a052d2c31b sh: fix clock-sh7757 for the latest sh_mobile_sdhi driver
The commit 996bc8aebd (mmc: sh_mobile_sdhi:
do not manage PM clocks manually) modified the sh_mobile_sdhi driver to
remove the clk_enable/clk_disable. So, we need to change
the "CLKDEV_CON_ID" to "CLKDEV_DEV_ID".

If we don't change this, we will see the following error from the driver:
    sh_mobile_sdhi sh_mobile_sdhi.0: timeout waiting for hardware interrupt (CMD52)

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-05 00:06:35 +09:00
Linus Torvalds a335750b9a Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull ACPI & Power Management changes from Len Brown:
 - ACPI 5.0 after-ripples, ACPICA/Linux divergence cleanup
 - cpuidle evolving, more ARM use
 - thermal sub-system evolving, ditto
 - assorted other PM bits

Fix up conflicts in various cpuidle implementations due to ARM cpuidle
cleanups (ARM at91 self-refresh and cpu idle code rewritten into
"standby" in asm conflicting with the consolidation of cpuidle time
keeping), trivial SH include file context conflict and RCU tracing fixes
in generic code.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (77 commits)
  ACPI throttling: fix endian bug in acpi_read_throttling_status()
  Disable MCP limit exceeded messages from Intel IPS driver
  ACPI video: Don't start video device until its associated input device has been allocated
  ACPI video: Harden video bus adding.
  ACPI: Add support for exposing BGRT data
  ACPI: export acpi_kobj
  ACPI: Fix logic for removing mappings in 'acpi_unmap'
  CPER failed to handle generic error records with multiple sections
  ACPI: Clean redundant codes in scan.c
  ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed()
  ACPI: consistently use should_use_kmap()
  PNPACPI: Fix device ref leaking in acpi_pnp_match
  ACPI: Fix use-after-free in acpi_map_lsapic
  ACPI: processor_driver: add missing kfree
  ACPI, APEI: Fix incorrect APEI register bit width check and usage
  Update documentation for parameter *notrigger* in einj.txt
  ACPI, APEI, EINJ, new parameter to control trigger action
  ACPI, APEI, EINJ, limit the range of einj_param
  ACPI, APEI, Fix ERST header length check
  cpuidle: power_usage should be declared signed integer
  ...
2012-03-30 16:45:39 -07:00
Paul Mundt 915ab1771b Merge branches 'sh/urgent', 'sh/vsyscall' and 'common/serial-rework' into sh-latest 2012-03-30 19:53:33 +09:00
Paul Mundt cd34e202fa sh: vsyscall: Fix up .eh_frame generation.
Some improper formatting caused the .eh_frame generation to fail,
resulting in gcc/g++ testsuite failures with regards to unwinding through
the vDSO. Now that someone is actually working on this on the gcc side
it's time to fix up the kernel side, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-30 19:42:26 +09:00
Paul Mundt f03c4866d3 sh: fix up fallout from system.h disintegration.
Quite a bit of fallout all over the place, nothing terribly exciting.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-30 19:29:57 +09:00
Linus Torvalds f52b69f86e SuperH updates for 3.4 merge window
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (25 commits)
  sh: Support I/O space swapping where needed.
  sh: use set_current_blocked() and block_sigmask()
  sh: no need to reset handler if SA_ONESHOT
  sh: intc: Fix up section mismatch for intc_ack_data
  sh: select ARCH_DISCARD_MEMBLOCK.
  sh: Consolidate duplicate _32/_64 unistd definitions.
  sh: ecovec: switch SDHI controllers to card polling
  sh: Avoid exporting unimplemented syscalls.
  sh: add platform_device for RSPI in setup-sh7757
  SH: pci-sh7780: enable big-endian operation.
  serial: sh-sci: fix a race of DMA submit_tx on transfer
  sh: dma: Collect up CHCR of SH7763, SH7764, SH7780 and SH7785
  sh: dma: Collect up CHCR of SH7723 and SH7730
  sh/next: Fix build fail by asm/system.h in asm/bitops.h
  arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible
  sh: cpufreq: Wire up scaling_available_freqs support.
  sh: cpufreq: notify about rate rounding fallback.
  sh: cpufreq: Support CPU clock frequency table.
  sh: cpufreq: struct device lookup from CPU topology.
  sh: cpufreq: percpu struct clk accounting.
  ...
2012-03-30 00:09:17 -07:00
Matt Fleming 5e047fa159 sh: use set_current_blocked() and block_sigmask()
As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block is
pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f2
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate code
across architectures.  In the past some architectures got this code wrong,
so using this helper function should stop that from happening again.

Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-29 09:11:26 +09:00
Matt Fleming 8368b0e0ca sh: no need to reset handler if SA_ONESHOT
get_signal_to_deliver() already resets the signal handler if SA_ONESHOT is
set in ka->sa.sa_flags, there's no need to do it again in handle_signal().
 Furthermore, because we were modifying ka->sa.sa_handler (which is a copy
of sighand->action[]) instead of sighand->action[] the original code had
no effect on signal delivery.

Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-29 09:11:24 +09:00
Linus Torvalds 0195c00244 Disintegrate and delete asm/system.h
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Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system

Pull "Disintegrate and delete asm/system.h" from David Howells:
 "Here are a bunch of patches to disintegrate asm/system.h into a set of
  separate bits to relieve the problem of circular inclusion
  dependencies.

  I've built all the working defconfigs from all the arches that I can
  and made sure that they don't break.

  The reason for these patches is that I recently encountered a circular
  dependency problem that came about when I produced some patches to
  optimise get_order() by rewriting it to use ilog2().

  This uses bitops - and on the SH arch asm/bitops.h drags in
  asm-generic/get_order.h by a circuituous route involving asm/system.h.

  The main difficulty seems to be asm/system.h.  It holds a number of
  low level bits with no/few dependencies that are commonly used (eg.
  memory barriers) and a number of bits with more dependencies that
  aren't used in many places (eg.  switch_to()).

  These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

        Move memory barriers here.  This already done for MIPS and Alpha.

    (2) asm/switch_to.h

        Move switch_to() and related stuff here.

    (3) asm/exec.h

        Move arch_align_stack() here.  Other process execution related bits
        could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

        Move xchg() and cmpxchg() here as they're full word atomic ops and
        frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

        Move die() and related bits.

    (6) asm/auxvec.h

        Move AT_VECTOR_SIZE_ARCH here.

  Other arch headers are created as needed on a per-arch basis."

Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that.  We'll find out anything that got broken and fix it..

* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
  Delete all instances of asm/system.h
  Remove all #inclusions of asm/system.h
  Add #includes needed to permit the removal of asm/system.h
  Move all declarations of free_initmem() to linux/mm.h
  Disintegrate asm/system.h for OpenRISC
  Split arch_align_stack() out from asm-generic/system.h
  Split the switch_to() wrapper out of asm-generic/system.h
  Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
  Create asm-generic/barrier.h
  Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
  Disintegrate asm/system.h for Xtensa
  Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
  Disintegrate asm/system.h for Tile
  Disintegrate asm/system.h for Sparc
  Disintegrate asm/system.h for SH
  Disintegrate asm/system.h for Score
  Disintegrate asm/system.h for S390
  Disintegrate asm/system.h for PowerPC
  Disintegrate asm/system.h for PA-RISC
  Disintegrate asm/system.h for MN10300
  ...
2012-03-28 15:58:21 -07:00
David Howells e839ca5287 Disintegrate asm/system.h for SH
Disintegrate asm/system.h for SH.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-sh@vger.kernel.org
2012-03-28 18:30:03 +01:00
Andrzej Pietrasiewicz 552c0d3ea6 SH: adapt for dma_map_ops changes
Adapt core SH architecture code for dma_map_ops changes: replace
alloc/free_coherent with generic alloc/free methods.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
2012-03-28 16:36:37 +02:00
Paul Mundt 9b2ffa8d04 sh: Avoid exporting unimplemented syscalls.
Now that userspace is making use of kernel-provided sanitized headers for
working out supported interfaces, we need to be a bit more diligent with
matching the syscall definitions with their actual wiring/support state.

In theory it shouldn't hurt anything since sys_ni_syscall will ultimately
do the right thing, but there's also not much need to lie about legacy
x86 syscalls that we've never supported.

This tightens things up a bit for uClibc at least.

Suggested-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-28 16:20:20 +09:00
Shimoda, Yoshihiro 10a068f27a sh: add platform_device for RSPI in setup-sh7757
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-28 14:31:03 +09:00
Paul Mundt d1000edd5d Merge branch 'sh/cpufreq' into sh-latest 2012-03-28 13:54:49 +09:00
Linus Torvalds 48d554418d ARM: timer cleanup work
These are split out from the generic soc and driver updates because
 there was a lot of conflicting work by multiple people. Marc Zyngier
 worked on simplifying the "localtimer" interfaces, and some of the
 platforms are touching the same code as they move to device tree
 based booting.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: timer cleanup work" from Arnd Bergmann:
 "These are split out from the generic soc and driver updates because
  there was a lot of conflicting work by multiple people.  Marc Zyngier
  worked on simplifying the "localtimer" interfaces, and some of the
  platforms are touching the same code as they move to device tree based
  booting.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

* tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
  ARM: tegra: select USB_ULPI if USB is selected
  arm/tegra: pcie: fix return value of function
  ARM: ux500: fix compilation after local timer rework
  ARM: shmobile: remove additional __io() macro use
  ARM: local timers: make the runtime registration interface mandatory
  ARM: local timers: convert MSM to runtime registration interface
  ARM: local timers: convert exynos to runtime registration interface
  ARM: smp_twd: remove old local timer interface
  ARM: imx6q: convert to twd_local_timer_register() interface
  ARM: highbank: convert to twd_local_timer_register() interface
  ARM: ux500: convert to twd_local_timer_register() interface
  ARM: shmobile: convert to twd_local_timer_register() interface
  ARM: tegra: convert to twd_local_timer_register() interface
  ARM: plat-versatile: convert to twd_local_timer_register() interface
  ARM: OMAP4: convert to twd_local_timer_register() interface
  ARM: smp_twd: add device tree support
  ARM: smp_twd: add runtime registration support
  ARM: local timers: introduce a new registration interface
  ARM: smp_twd: make local_timer_stop a symbol instead of a #define
  ARM: mach-shmobile: default to no earlytimer
  ...
2012-03-27 16:06:17 -07:00
Jason Baron 909af768e8 coredump: remove VM_ALWAYSDUMP flag
The motivation for this patchset was that I was looking at a way for a
qemu-kvm process, to exclude the guest memory from its core dump, which
can be quite large.  There are already a number of filter flags in
/proc/<pid>/coredump_filter, however, these allow one to specify 'types'
of kernel memory, not specific address ranges (which is needed in this
case).

Since there are no more vma flags available, the first patch eliminates
the need for the 'VM_ALWAYSDUMP' flag.  The flag is used internally by
the kernel to mark vdso and vsyscall pages.  However, it is simple
enough to check if a vma covers a vdso or vsyscall page without the need
for this flag.

The second patch then replaces the 'VM_ALWAYSDUMP' flag with a new
'VM_NODUMP' flag, which can be set by userspace using new madvise flags:
'MADV_DONTDUMP', and unset via 'MADV_DODUMP'.  The core dump filters
continue to work the same as before unless 'MADV_DONTDUMP' is set on the
region.

The qemu code which implements this features is at:

  http://people.redhat.com/~jbaron/qemu-dump/qemu-dump.patch

In my testing the qemu core dump shrunk from 383MB -> 13MB with this
patch.

I also believe that the 'MADV_DONTDUMP' flag might be useful for
security sensitive apps, which might want to select which areas are
dumped.

This patch:

The VM_ALWAYSDUMP flag is currently used by the coredump code to
indicate that a vma is part of a vsyscall or vdso section.  However, we
can determine if a vma is in one these sections by checking it against
the gate_vma and checking for a non-NULL return value from
arch_vma_name().  Thus, freeing a valuable vma bit.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Acked-by: Roland McGrath <roland@hack.frob.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23 16:58:42 -07:00
Robert Lee 5c48c873ba SH: shmobile: Consolidate time keeping and irq enable
Enable core cpuidle timekeeping and irq enabling and remove that
handling from this code.

Signed-off-by: Robert Lee <rob.lee@linaro.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-03-21 02:01:34 -04:00
Linus Torvalds 2ba68940c8 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes for v3.4 from Ingo Molnar

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  printk: Make it compile with !CONFIG_PRINTK
  sched/x86: Fix overflow in cyc2ns_offset
  sched: Fix nohz load accounting -- again!
  sched: Update yield() docs
  printk/sched: Introduce special printk_sched() for those awkward moments
  sched/nohz: Correctly initialize 'next_balance' in 'nohz' idle balancer
  sched: Cleanup cpu_active madness
  sched: Fix load-balance wreckage
  sched: Clean up parameter passing of proc_sched_autogroup_set_nice()
  sched: Ditch per cgroup task lists for load-balancing
  sched: Rename load-balancing fields
  sched: Move load-balancing arguments into helper struct
  sched/rt: Do not submit new work when PI-blocked
  sched/rt: Prevent idle task boosting
  sched/wait: Add __wake_up_all_locked() API
  sched/rt: Document scheduler related skip-resched-check sites
  sched/rt: Use schedule_preempt_disabled()
  sched/rt: Add schedule_preempt_disabled()
  sched/rt: Do not throttle when PI boosting
  sched/rt: Keep period timer ticking when rt throttling is active
  ...
2012-03-20 10:31:44 -07:00
Linus Torvalds 9c2b957db1 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events changes for v3.4 from Ingo Molnar:

 - New "hardware based branch profiling" feature both on the kernel and
   the tooling side, on CPUs that support it.  (modern x86 Intel CPUs
   with the 'LBR' hardware feature currently.)

   This new feature is basically a sophisticated 'magnifying glass' for
   branch execution - something that is pretty difficult to extract from
   regular, function histogram centric profiles.

   The simplest mode is activated via 'perf record -b', and the result
   looks like this in perf report:

	$ perf record -b any_call,u -e cycles:u branchy

	$ perf report -b --sort=symbol
	    52.34%  [.] main                   [.] f1
	    24.04%  [.] f1                     [.] f3
	    23.60%  [.] f1                     [.] f2
	     0.01%  [k] _IO_new_file_xsputn    [k] _IO_file_overflow
	     0.01%  [k] _IO_vfprintf_internal  [k] _IO_new_file_xsputn
	     0.01%  [k] _IO_vfprintf_internal  [k] strchrnul
	     0.01%  [k] __printf               [k] _IO_vfprintf_internal
	     0.01%  [k] main                   [k] __printf

   This output shows from/to branch columns and shows the highest
   percentage (from,to) jump combinations - i.e.  the most likely taken
   branches in the system.  "branches" can also include function calls
   and any other synchronous and asynchronous transitions of the
   instruction pointer that are not 'next instruction' - such as system
   calls, traps, interrupts, etc.

   This feature comes with (hopefully intuitive) flat ascii and TUI
   support in perf report.

 - Various 'perf annotate' visual improvements for us assembly junkies.
   It will now recognize function calls in the TUI and by hitting enter
   you can follow the call (recursively) and back, amongst other
   improvements.

 - Multiple threads/processes recording support in perf record, perf
   stat, perf top - which is activated via a comma-list of PIDs:

	perf top -p 21483,21485
	perf stat -p 21483,21485 -ddd
	perf record -p 21483,21485

 - Support for per UID views, via the --uid paramter to perf top, perf
   report, etc.  For example 'perf top --uid mingo' will only show the
   tasks that I am running, excluding other users, root, etc.

 - Jump label restructurings and improvements - this includes the
   factoring out of the (hopefully much clearer) include/linux/static_key.h
   generic facility:

	struct static_key key = STATIC_KEY_INIT_FALSE;

	...

	if (static_key_false(&key))
	        do unlikely code
	else
	        do likely code

	...
	static_key_slow_inc();
	...
	static_key_slow_inc();
	...

   The static_key_false() branch will be generated into the code with as
   little impact to the likely code path as possible.  the
   static_key_slow_*() APIs flip the branch via live kernel code patching.

   This facility can now be used more widely within the kernel to
   micro-optimize hot branches whose likelihood matches the static-key
   usage and fast/slow cost patterns.

 - SW function tracer improvements: perf support and filtering support.

 - Various hardenings of the perf.data ABI, to make older perf.data's
   smoother on newer tool versions, to make new features integrate more
   smoothly, to support cross-endian recording/analyzing workflows
   better, etc.

 - Restructuring of the kprobes code, the splitting out of 'optprobes',
   and a corner case bugfix.

 - Allow the tracing of kernel console output (printk).

 - Improvements/fixes to user-space RDPMC support, allowing user-space
   self-profiling code to extract PMU counts without performing any
   system calls, while playing nice with the kernel side.

 - 'perf bench' improvements

 - ... and lots of internal restructurings, cleanups and fixes that made
   these features possible.  And, as usual this list is incomplete as
   there were also lots of other improvements

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (120 commits)
  perf report: Fix annotate double quit issue in branch view mode
  perf report: Remove duplicate annotate choice in branch view mode
  perf/x86: Prettify pmu config literals
  perf report: Enable TUI in branch view mode
  perf report: Auto-detect branch stack sampling mode
  perf record: Add HEADER_BRANCH_STACK tag
  perf record: Provide default branch stack sampling mode option
  perf tools: Make perf able to read files from older ABIs
  perf tools: Fix ABI compatibility bug in print_event_desc()
  perf tools: Enable reading of perf.data files from different ABI rev
  perf: Add ABI reference sizes
  perf report: Add support for taken branch sampling
  perf record: Add support for sampling taken branch
  perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK
  x86/kprobes: Split out optprobe related code to kprobes-opt.c
  x86/kprobes: Fix a bug which can modify kernel code permanently
  x86/kprobes: Fix instruction recovery on optimized path
  perf: Add callback to flush branch_stack on context switch
  perf: Disable PERF_SAMPLE_BRANCH_* when not supported
  perf/x86: Add LBR software filter support for Intel CPUs
  ...
2012-03-20 10:29:15 -07:00
Magnus Damm 2e679b0b7a sh: sh5 sh_clk_ops rename
Convert sh5 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:12 +01:00
Magnus Damm 33cb61a400 sh: sh4a sh_clk_ops rename
Convert sh4a SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:12 +01:00
Magnus Damm 3b8744156d sh: sh4 sh_clk_ops rename
Convert sh4 SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:11 +01:00
Magnus Damm 43ebacd00a sh: sh3 sh_clk_ops rename
Convert sh3 SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:11 +01:00
Magnus Damm 4ad2c06155 sh: sh2a sh_clk_ops rename
Convert sh2a SoCs to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:11 +01:00
Magnus Damm 71984236d6 sh: sh2 sh_clk_ops rename
Convert sh2 to use sh_clk_ops.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-12 22:19:10 +01:00
Thomas Schwinge 948c46a195 sh: fix up the ubc clock definition for sh7785.
Presently the SH7785 code misdefines the UBC clock connection ID in
relation to the other CPUs. This makes it uniform, so that things like
single-stepping work again.

Signed-off-by: Thomas Schwinge <thomas@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:28:32 +09:00
Shimoda, Yoshihiro fb4340656f sh: add parameter for RSPI in clock-sh7757
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:26:04 +09:00
Phil Edworthy de3a49b8a4 sh: Fix sh2a vbr table for more than 255 irqs
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-07 15:26:03 +09:00
Stephane Eranian 2481c5fa6d perf: Disable PERF_SAMPLE_BRANCH_* when not supported
PERF_SAMPLE_BRANCH_* is disabled for:

 - SW events (sw counters, tracepoints)
 - HW breakpoints
 - ALL but Intel x86 architecture
 - AMD64 processors

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1328826068-11713-10-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-05 14:55:42 +01:00
Thomas Gleixner bd2f55361f sched/rt: Use schedule_preempt_disabled()
Coccinelle based conversion.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-24swm5zut3h9c4a6s46x8rws@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-01 10:28:03 +01:00
Rusty Russell 004f4ce9f3 arch/sh: remove references to cpu_*_map.
This has been obsolescent for a while; time for the final push.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-02-24 13:21:45 +09:00
Paul Mundt 3cbb08ae2e sh: cpufreq: Wire up scaling_available_freqs support.
scaling_available_freqs is provided generically for drivers that are
using frequency table based rounding. This will be optional for our case,
but the generic code already takes that in to consideration, so we can
simply wire it up outright.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 20:45:24 +09:00
Paul Mundt 1a565cf07f sh: cpufreq: notify about rate rounding fallback.
The general case for platforms that support the clock framework fully
will be rate table rounding, while others will have to fall back on much
coarser general rate rounding. Notify about it during boot so the limited
functionality for the given subtype is appropriately noted.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 20:43:14 +09:00
Paul Mundt 1bcfc723c8 sh: cpufreq: Support CPU clock frequency table.
This adds support for the frequency table provided by the clock framework
under the struct clk definition (if available). In cases where no table
is generated or otherwise supported, we fall back on coarse grained
scaling via clock framework rounding, as before.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 20:18:24 +09:00
Paul Mundt ecbef17adb sh: cpufreq: struct device lookup from CPU topology.
The struct device pointer associated with the CPU we're on can be fetched
via the topology information. Tie this in to localize the CPU clock
lookup. While we're at it, tidy up some of the debug/info printing
notices too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 19:44:49 +09:00
Paul Mundt 3bccf46772 sh: cpufreq: percpu struct clk accounting.
At the moment there is simply a global struct clk pointer for the CPU
frequency, which is fundamentally broken in the SMP case. This moves to
fix it up by switching to a percpu case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 17:49:16 +09:00
Paul Mundt c40e0fa51c Merge branches 'sh/urgent' and 'sh/platform-updates' into sh-latest 2012-01-27 16:37:30 +09:00
Shimoda, Yoshihiro a206c00873 sh: add platform_device for SPI1 in setup-sh7757
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 15:04:36 +09:00
Shimoda, Yoshihiro 11c582e32c sh: modify resource for SPI0 in setup-sh7757
The new spi-sh driver decodes the IORESOURCE_MEM_TYPE_MASK. So, the
resource needs the IORESOURCE_MEM_32BIT.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-27 15:04:36 +09:00
Kuninori Morimoto 833218f16b sh: clock-sh7724: fixup sh_fsi clock settings
sh_fsi needs HWBLK_SPU clock on sh7724

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-18 21:51:27 +10:00
Linus Torvalds f429ee3b80 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit: (29 commits)
  audit: no leading space in audit_log_d_path prefix
  audit: treat s_id as an untrusted string
  audit: fix signedness bug in audit_log_execve_info()
  audit: comparison on interprocess fields
  audit: implement all object interfield comparisons
  audit: allow interfield comparison between gid and ogid
  audit: complex interfield comparison helper
  audit: allow interfield comparison in audit rules
  Kernel: Audit Support For The ARM Platform
  audit: do not call audit_getname on error
  audit: only allow tasks to set their loginuid if it is -1
  audit: remove task argument to audit_set_loginuid
  audit: allow audit matching on inode gid
  audit: allow matching on obj_uid
  audit: remove audit_finish_fork as it can't be called
  audit: reject entry,always rules
  audit: inline audit_free to simplify the look of generic code
  audit: drop audit_set_macxattr as it doesn't do anything
  audit: inline checks for not needing to collect aux records
  audit: drop some potentially inadvisable likely notations
  ...

Use evil merge to fix up grammar mistakes in Kconfig file.

Bad speling and horrible grammar (and copious swearing) is to be
expected, but let's keep it to commit messages and comments, rather than
expose it to users in config help texts or printouts.
2012-01-17 16:41:31 -08:00
Eric Paris b05d8447e7 audit: inline audit_syscall_entry to reduce burden on archs
Every arch calls:

if (unlikely(current->audit_context))
	audit_syscall_entry()

which requires knowledge about audit (the existance of audit_context) in
the arch code.  Just do it all in static inline in audit.h so that arch's
can remain blissfully ignorant.

Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-17 16:16:56 -05:00
Eric Paris d7e7528bcd Audit: push audit success and retcode into arch ptrace.h
The audit system previously expected arches calling to audit_syscall_exit to
supply as arguments if the syscall was a success and what the return code was.
Audit also provides a helper AUDITSC_RESULT which was supposed to simplify things
by converting from negative retcodes to an audit internal magic value stating
success or failure.  This helper was wrong and could indicate that a valid
pointer returned to userspace was a failed syscall.  The fix is to fix the
layering foolishness.  We now pass audit_syscall_exit a struct pt_reg and it
in turns calls back into arch code to collect the return value and to
determine if the syscall was a success or failure.  We also define a generic
is_syscall_success() macro which determines success/failure based on if the
value is < -MAX_ERRNO.  This works for arches like x86 which do not use a
separate mechanism to indicate syscall failure.

We make both the is_syscall_success() and regs_return_value() static inlines
instead of macros.  The reason is because the audit function must take a void*
for the regs.  (uml calls theirs struct uml_pt_regs instead of just struct
pt_regs so audit_syscall_exit can't take a struct pt_regs).  Since the audit
function takes a void* we need to use static inlines to cast it back to the
arch correct structure to dereference it.

The other major change is that on some arches, like ia64, MIPS and ppc, we
change regs_return_value() to give us the negative value on syscall failure.
THE only other user of this macro, kretprobe_example.c, won't notice and it
makes the value signed consistently for the audit functions across all archs.

In arch/sh/kernel/ptrace_64.c I see that we were using regs[9] in the old
audit code as the return value.  But the ptrace_64.h code defined the macro
regs_return_value() as regs[3].  I have no idea which one is correct, but this
patch now uses the regs_return_value() function, so it now uses regs[3].

For powerpc we previously used regs->result but now use the
regs_return_value() function which uses regs->gprs[3].  regs->gprs[3] is
always positive so the regs_return_value(), much like ia64 makes it negative
before calling the audit code when appropriate.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: H. Peter Anvin <hpa@zytor.com> [for x86 portion]
Acked-by: Tony Luck <tony.luck@intel.com> [for ia64]
Acked-by: Richard Weinberger <richard@nod.at> [for uml]
Acked-by: David S. Miller <davem@davemloft.net> [for sparc]
Acked-by: Ralf Baechle <ralf@linux-mips.org> [for mips]
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [for ppc]
2012-01-17 16:16:56 -05:00
Joe Perches ff2d8b19a3 treewide: convert uses of ATTRIB_NORETURN to __noreturn
Use the more commonly used __noreturn instead of ATTRIB_NORETURN.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:03 -08:00
Paul Mundt 9d14070f65 Merge branch 'sh/hwblk' into sh-latest 2012-01-12 12:57:41 +09:00
Paul Mundt 9f06cf38ec Merge branch 'sh/pm-runtime' into sh-latest
Conflicts:
	arch/sh/kernel/cpu/sh4a/clock-sh7723.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-12 12:57:32 +09:00
Shimoda, Yoshihiro a4d5247310 sh: add a resource name for shdma
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-12 12:22:00 +09:00
Paul Mundt 7a73c81ec3 Merge branch 'sh/urgent' into sh-latest 2012-01-10 16:37:52 +09:00
Paul Mundt abef364050 sh: Remove redundant try_to_freeze() invocations.
get_signal_to_deliver() takes care of this, kill off the redundancies, as
per the avr32 change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-10 16:37:06 +09:00
Paul Mundt 6330c04bb4 sh: Ensure IRQs are enabled across do_notify_resume().
do_notify_resume() can trigger the freezer via the try_to_freeze() path
(both explicitly through a redundant call in do_signal() or via
get_signal_to_deliver()). That IRQs were disabled across this callsite
became apparent with the might_sleep() introduction in try_to_freeze() by
Tejun in a0acae0e88, resulting in:

	BUG: sleeping function called from invalid context at include/linux/freezer.h:45
	in_atomic(): 0, irqs_disabled(): 1, pid: 819, name: ntpd
	no locks held by ntpd/819.
	Stack: (0x9c81be80 to 0x9c81c000)
	...

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-10 16:30:37 +09:00
Paul Mundt 33dc5c1000 sh: Fix up store queue code for subsys_interface changes.
Fixes up a number of build and section mismatch errors introduced by the
subsys_interface conversion.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-10 16:24:11 +09:00
Shimoda, Yoshihiro 1760e371a9 sh: modify clock-sh7757 for renesas_usbhs
The renesas_usbhs driver doesn't use the clk functions. So, even if we
adds "CLKDEV_DEV_ID("renesas_usbhs.0", ...)" only, we cannot use the USB
controller because clk_late_init() will disable the clock by "usb0".
So, the patch also removes the "CLKDEV_CON_ID("usb0", ...)".

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09 11:13:36 +09:00
Paul Mundt ca371d2854 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts:
	arch/arm/mach-shmobile/clock-sh73a0.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09 11:12:55 +09:00
Linus Torvalds 7affca3537 Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits)
  arm: fix up some samsung merge sysdev conversion problems
  firmware: Fix an oops on reading fw_priv->fw in sysfs loading file
  Drivers:hv: Fix a bug in vmbus_driver_unregister()
  driver core: remove __must_check from device_create_file
  debugfs: add missing #ifdef HAS_IOMEM
  arm: time.h: remove device.h #include
  driver-core: remove sysdev.h usage.
  clockevents: remove sysdev.h
  arm: convert sysdev_class to a regular subsystem
  arm: leds: convert sysdev_class to a regular subsystem
  kobject: remove kset_find_obj_hinted()
  m86k: gpio - convert sysdev_class to a regular subsystem
  mips: txx9_sram - convert sysdev_class to a regular subsystem
  mips: 7segled - convert sysdev_class to a regular subsystem
  sh: dma - convert sysdev_class to a regular subsystem
  sh: intc - convert sysdev_class to a regular subsystem
  power: suspend - convert sysdev_class to a regular subsystem
  power: qe_ic - convert sysdev_class to a regular subsystem
  power: cmm - convert sysdev_class to a regular subsystem
  s390: time - convert sysdev_class to a regular subsystem
  ...

Fix up conflicts with 'struct sysdev' removal from various platform
drivers that got changed:
 - arch/arm/mach-exynos/cpu.c
 - arch/arm/mach-exynos/irq-eint.c
 - arch/arm/mach-s3c64xx/common.c
 - arch/arm/mach-s3c64xx/cpu.c
 - arch/arm/mach-s5p64x0/cpu.c
 - arch/arm/mach-s5pv210/common.c
 - arch/arm/plat-samsung/include/plat/cpu.h
 - arch/powerpc/kernel/sysfs.c
and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-07 12:03:30 -08:00