Commit Graph

74913 Commits

Author SHA1 Message Date
Xiao Guangrong f3ac1a4b66 KVM: MMU: fix release noslot pfn
We can not directly call kvm_release_pfn_clean to release the pfn
since we can meet noslot pfn which is used to cache mmio info into
spte

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-10-22 18:03:25 +02:00
Linus Walleij ad17a26e22 ARM: 7560/1: SMP_TWD: use DIV_ROUND_CLOSEST() for periodic mode
The periodic mode is currently calculated by a simple division
but we should pay more attention to our integer arithmetics.
Also delete a comment that does not make any sense.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-22 15:34:40 +01:00
Will Deacon 5f40b90972 ARM: 7559/1: smp: switch away from the idmap before updating init_mm.mm_count
When booting a secondary CPU, the primary CPU hands two sets of page
tables via the secondary_data struct:

	(1) swapper_pg_dir: a normal, cacheable, shared (if SMP) mapping
	    of the kernel image (i.e. the tables used by init_mm).

	(2) idmap_pgd: an uncached mapping of the .idmap.text ELF
	    section.

The idmap is generally used when enabling and disabling the MMU, which
includes early CPU boot. In this case, the secondary CPU switches to
swapper as soon as it enters C code:

	struct mm_struct *mm = &init_mm;
	unsigned int cpu = smp_processor_id();

	/*
	 * All kernel threads share the same mm context; grab a
	 * reference and switch to it.
	 */
	atomic_inc(&mm->mm_count);
	current->active_mm = mm;
	cpumask_set_cpu(cpu, mm_cpumask(mm));
	cpu_switch_mm(mm->pgd, mm);

This causes a problem on ARMv7, where the identity mapping is treated as
strongly-ordered leading to architecturally UNPREDICTABLE behaviour of
exclusive accesses, such as those used by atomic_inc.

This patch re-orders the secondary_start_kernel function so that we
switch to swapper before performing any exclusive accesses.

Cc: <stable@vger.kernel.org>
Cc: David McKay <david.mckay@st.com>
Reported-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-22 15:33:51 +01:00
Linus Torvalds 4fe7e866a7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
 "Just the expected UAPI disintegration and the "new" kcmp syscall."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up kcmp
  m68k: Remove empty #ifdef/#else/#endif block
  UAPI: (Scripted) Disintegrate arch/m68k/include/asm
2012-10-22 08:54:24 +03:00
Ingo Molnar f38787f4f9 Merge branch 'uprobes/core' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/urgent
Pull various uprobes bugfixes from Oleg Nesterov - mostly race and
failure path fixes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-10-21 18:18:17 +02:00
Ingo Molnar 957b9095ed Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/urgent
Pull event-wrapping Oprofile fix from Robert Richter.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-10-21 18:11:20 +02:00
Linus Torvalds 198190a188 Main changes:
- AArch64 Linux compilation fixes following 3.7-rc1 changes
   (MODULES_USE_ELF_RELA, update_vsyscall() prototype)
 - Unnecessary register setting in start_thread() (thanks to Al Viro)
 - ptrace fixes
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 "Main changes:
   - AArch64 Linux compilation fixes following 3.7-rc1 changes
     (MODULES_USE_ELF_RELA, update_vsyscall() prototype)
   - Unnecessary register setting in start_thread() (thanks to Al Viro)
   - ptrace fixes"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: fix alignment padding in assembly code
  arm64: ptrace: use HW_BREAKPOINT_EMPTY type for disabled breakpoints
  arm64: ptrace: make structure padding explicit for debug registers
  arm64: No need to set the x0-x2 registers in start_thread()
  arm64: Ignore memory blocks below PHYS_OFFSET
  arm64: Fix the update_vsyscall() prototype
  arm64: Select MODULES_USE_ELF_RELA
  arm64: Remove duplicate inclusion of mmu_context.h in smp.c
2012-10-20 09:48:10 -07:00
Marc Zyngier aeed41a937 arm64: fix alignment padding in assembly code
An interesting effect of using the generic version of linkage.h
is that the padding is defined in terms of x86 NOPs, which can have
even more interesting effects when the assembly code looks like this:

ENTRY(func1)
	mov	x0, xzr
ENDPROC(func1)
	// fall through
ENTRY(func2)
	mov	x0, #1
	ret
ENDPROC(func2)

Admittedly, the code is not very nice. But having code from another
architecture doesn't look completely sane either.

The fix is to add arm64's version of linkage.h, which causes the insertion
of proper AArch64 NOPs.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-20 11:12:01 +01:00
Yan, Zheng a05123bdd1 perf/x86: Disable uncore on virtualized CPUs
Initializing uncore PMU on virtualized CPU may hang the kernel.
This is because kvm does not emulate the entire hardware. Thers
are lots of uncore related MSRs, making kvm enumerate them all
is a non-trival task. So just disable uncore on virtualized CPU.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Tested-by: Pekka Enberg <penberg@kernel.org>
Cc: a.p.zijlstra@chello.nl
Cc: eranian@google.com
Cc: andi@firstfloor.org
Cc: avi@redhat.com
Link: http://lkml.kernel.org/r/1345540117-14164-1-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-10-20 10:07:02 +02:00
Linus Torvalds 8c1bee685e Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Assorted small fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf python: Properly link with libtraceevent
  perf hists browser: Add back callchain folding symbol
  perf tools: Fix build on sparc.
  perf python: Link with libtraceevent
  perf python: Initialize 'page_size' variable
  tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter
  lib tools traceevent: Add back pevent assignment in __pevent_parse_format()
  perf hists browser: Fix off-by-two bug on the first column
  perf tools: Remove warnings on JIT samples for srcline sort key
  perf tools: Fix segfault when using srcline sort key
  perf: Require exclude_guest to use PEBS - kernel side enforcement
  perf tool: Precise mode requires exclude_guest
2012-10-19 18:39:36 -07:00
Ingo Molnar a448a0318a perf/urgent fixes:
. The python binding needs to link with libtraceevent and to initialize
   the 'page_size' variable so that mmaping works again.
 
 . The callchain folding character that appears on the TUI just before
   the overhead had disappeared due to recent changes, add it back.
 
 . Intel PEBS in VT-x context uses the DS address as a guest linear address,
   even though its programmed by the host as a host linear address. This either
   results in guest memory corruption and or the hardware faulting and 'crashing'
   the virtual machine.  Therefore we have to disable PEBS on VT-x enter and
   re-enable on VT-x exit, enforcing a strict exclude_guest.
 
   Kernel side enforcement fix by Peter Zijlstra, tooling side fix by David Ahern.
 
 . Fix build on sparc due to UAPI, fix from David Miller.
 
 . Fixes for the srclike sort key for unresolved symbols and when processing
   samples in JITted code, where we don't have an ELF file, just an special
   symbol table, fixes from Namhyung Kim.
 
 . Fix some leaks in libtraceevent, from Steven Rostedt.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

* The python binding needs to link with libtraceevent and to initialize
  the 'page_size' variable so that mmaping works again.

* The callchain folding character that appears on the TUI just before
  the overhead had disappeared due to recent changes, add it back.

* Intel PEBS in VT-x context uses the DS address as a guest linear address,
  even though its programmed by the host as a host linear address. This either
  results in guest memory corruption and or the hardware faulting and 'crashing'
  the virtual machine.  Therefore we have to disable PEBS on VT-x enter and
  re-enable on VT-x exit, enforcing a strict exclude_guest.

  Kernel side enforcement fix by Peter Zijlstra, tooling side fix by David Ahern.

* Fix build on sparc due to UAPI, fix from David Miller.

* Fixes for the srclike sort key for unresolved symbols and when processing
  samples in JITted code, where we don't have an ELF file, just an special
  symbol table, fixes from Namhyung Kim.

* Fix some leaks in libtraceevent, from Steven Rostedt.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-10-20 02:40:26 +02:00
Linus Torvalds 37820108f3 ARM: soc: Fixes for 3.7-rc2
A set of fixes and some minor cleanups for -rc2:
 
 - A series from Arnd that fixes warnings in drivers and other code
   included by ARM defconfigs. Most have been acked by corresponding
   maintainers (and seem quite hard to argue not picking up anyway in the
   few exception cases).
 - A few misc patches from the list for integrator/vt8500/i.MX
 - A batch of fixes to OMAP platforms, fixing:
   - boot problems on beaglebone,
   - regression fixes for local timers
   - clockdomain locking fixes
   - a few boot/sparse warnings
 - For Tegra:
   - Clock rate calculation overflow fix
   - Revert a change that removed timer clocks and a fix for symbol name clashes
 - For Renesas:
   - IO accessor / annotation cleanups to remove warnings
 - For Kirkwood/Dove/mvebu:
   - Fixes for device trees for Dove (some minor cleanups, some fixes)
   - Fixes for the mvebu gpio driver
   - Fix build problem for Feroceon due to missing ifdefs
   - Fix lsxl DTS files
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc fixes from Olof Johansson:
 "A set of fixes and some minor cleanups for -rc2:

   - A series from Arnd that fixes warnings in drivers and other code
     included by ARM defconfigs.  Most have been acked by corresponding
     maintainers (and seem quite hard to argue not picking up anyway in
     the few exception cases).
   - A few misc patches from the list for integrator/vt8500/i.MX
   - A batch of fixes to OMAP platforms, fixing:
     - boot problems on beaglebone,
     - regression fixes for local timers
     - clockdomain locking fixes
     - a few boot/sparse warnings
   - For Tegra:
     - Clock rate calculation overflow fix
     - Revert a change that removed timer clocks and a fix for symbol
       name clashes
   - For Renesas:
     - IO accessor / annotation cleanups to remove warnings
   - For Kirkwood/Dove/mvebu:
     - Fixes for device trees for Dove (some minor cleanups, some fixes)
     - Fixes for the mvebu gpio driver
     - Fix build problem for Feroceon due to missing ifdefs
     - Fix lsxl DTS files"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: kirkwood: fix buttons on lsxl boards
  ARM: kirkwood: fix LEDs names for lsxl boards
  ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2
  gpio: mvebu: Add missing breaks in mvebu_gpio_irq_set_type
  ARM: dove: Add crypto engine to DT
  ARM: dove: Remove watchdog from DT
  ARM: dove: Restructure SoC device tree descriptor
  ARM: dove: Fix clock names of sata and gbe
  ARM: dove: Fix tauros2 device tree init
  ARM: dove: Add pcie clock support
  ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory
  ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
  ARM: s3c: mark s3c2440_clk_add as __init_refok
  spi/s3c64xx: use correct dma_transfer_direction type
  ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message
  ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck
  ARM: OMAP: resolve sparse warning concerning debug_card_init()
  ARM: OMAP4: Fix twd_local_timer_register regression
  ARM: tegra: add tegra_timer clock
  ARM: tegra: rename tegra system timer
  ...
2012-10-19 17:32:37 -07:00
Olof Johansson 70f3900ee5 - improve #ifdef logic to prevent linker errors with CACHE_FEROCEON_L2
- lsxl board dts fixes
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Merge tag 'kirkwood_fixes_for_v3.7' of git://git.infradead.org/users/jcooper/linux into fixes

From Jason Cooper:
 - improve #ifdef logic to prevent linker errors with CACHE_FEROCEON_L2
 - lsxl board dts fixes

* tag 'kirkwood_fixes_for_v3.7' of git://git.infradead.org/users/jcooper/linux:
  ARM: kirkwood: fix buttons on lsxl boards
  ARM: kirkwood: fix LEDs names for lsxl boards
  ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2
2012-10-19 16:17:51 -07:00
Olof Johansson 068a565afa Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes
A collection of warning fixes on non-ARM code from Arnd Bergmann:

* 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: s3c: mark s3c2440_clk_add as __init_refok
  spi/s3c64xx: use correct dma_transfer_direction type
  pcmcia: sharpsl: don't discard sharpsl_pcmcia_ops
  USB: EHCI: mark ehci_orion_conf_mbus_windows __devinit
  mm/slob: use min_t() to compare ARCH_SLAB_MINALIGN
  SCSI: ARM: make fas216_dumpinfo function conditional
  SCSI: ARM: ncr5380/oak uses no interrupts
2012-10-19 15:40:18 -07:00
Linus Torvalds 3b641bf453 Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull miscellaneous x86 fixes from Peter Anvin:
 "The biggest ones are fixing suspend/resume breakage on 32 bits, and an
  interrim fix for mapping over holes that allows AMD kit with more than
  1 TB.

  A final solution for the latter is in the works, but involves some
  fairly invasive changes that will probably mean it will only be
  appropriate for 3.8."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, MCE: Remove bios_cmci_threshold sysfs attribute
  x86, amd, mce: Avoid NULL pointer reference on CPU northbridge lookup
  x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping.
  x86/cache_info: Use ARRAY_SIZE() in amd_l3_attrs()
  x86/reboot: Remove quirk entry for SBC FITPC
  x86, suspend: Correct the restore of CR4, EFER; skip computing EFLAGS.ID
2012-10-19 14:15:16 -07:00
Linus Torvalds 17dbe27d84 Xtensa patchset for 3.7-rc2
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Merge tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux

Pull Xtensa patchset from Chris Zankel:
 "These are all limited to the xtensa subtree and include some important
  changes (adding long missing system calls for newer libc versions and
  other fixes) and the UAPI changes"

* tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux:
  xtensa: add missing system calls to the syscall table
  xtensa: minor compiler warning fix
  xtensa: Use Kbuild infrastructure to handle asm-generic headers
  UAPI: (Scripted) Disintegrate arch/xtensa/include/asm
  xtensa: fix unaligned usermode access
  xtensa: reorganize SR referencing
  xtensa: fix boot parameters parsing
  xtensa: fix missing return in do_page_fault for SIGBUS case
  xtensa: copy_thread with CLONE_VM must not copy live parent AR windows
  xtensa: fix memmove(), bcopy(), and memcpy().
  xtensa: ISS: fix rs_put_char
  xtensa: ISS: fix specific simcalls
2012-10-19 12:52:06 -07:00
Konrad Rzeszutek Wilk e05dacd71d Merge commit 'v3.7-rc1' into stable/for-linus-3.7
* commit 'v3.7-rc1': (10892 commits)
  Linux 3.7-rc1
  x86, boot: Explicitly include autoconf.h for hostprogs
  perf: Fix UAPI fallout
  ARM: config: make sure that platforms are ordered by option string
  ARM: config: sort select statements alphanumerically
  UAPI: (Scripted) Disintegrate include/linux/byteorder
  UAPI: (Scripted) Disintegrate include/linux
  UAPI: Unexport linux/blk_types.h
  UAPI: Unexport part of linux/ppp-comp.h
  perf: Handle new rbtree implementation
  procfs: don't need a PATH_MAX allocation to hold a string representation of an int
  vfs: embed struct filename inside of names_cache allocation if possible
  audit: make audit_inode take struct filename
  vfs: make path_openat take a struct filename pointer
  vfs: turn do_path_lookup into wrapper around struct filename variant
  audit: allow audit code to satisfy getname requests from its names_list
  vfs: define struct filename and have getname() return it
  btrfs: Fix compilation with user namespace support enabled
  userns: Fix posix_acl_file_xattr_userns gid conversion
  userns: Properly print bluetooth socket uids
  ...
2012-10-19 15:19:19 -04:00
Ian Campbell 3ab0b83bf6 xen: arm: comment on why 64-bit xen_pfn_t is safe even on 32 bit
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:18:01 -04:00
David Vrabel a349e23d1c xen/x86: don't corrupt %eip when returning from a signal handler
In 32 bit guests, if a userspace process has %eax == -ERESTARTSYS
(-512) or -ERESTARTNOINTR (-513) when it is interrupted by an event
/and/ the process has a pending signal then %eip (and %eax) are
corrupted when returning to the main process after handling the
signal.  The application may then crash with SIGSEGV or a SIGILL or it
may have subtly incorrect behaviour (depending on what instruction it
returned to).

The occurs because handle_signal() is incorrectly thinking that there
is a system call that needs to restarted so it adjusts %eip and %eax
to re-execute the system call instruction (even though user space had
not done a system call).

If %eax == -514 (-ERESTARTNOHAND (-514) or -ERESTART_RESTARTBLOCK
(-516) then handle_signal() only corrupted %eax (by setting it to
-EINTR).  This may cause the application to crash or have incorrect
behaviour.

handle_signal() assumes that regs->orig_ax >= 0 means a system call so
any kernel entry point that is not for a system call must push a
negative value for orig_ax.  For example, for physical interrupts on
bare metal the inverse of the vector is pushed and page_fault() sets
regs->orig_ax to -1, overwriting the hardware provided error code.

xen_hypervisor_callback() was incorrectly pushing 0 for orig_ax
instead of -1.

Classic Xen kernels pushed %eax which works as %eax cannot be both
non-negative and -RESTARTSYS (etc.), but using -1 is consistent with
other non-system call entry points and avoids some of the tests in
handle_signal().

There were similar bugs in xen_failsafe_callback() of both 32 and
64-bit guests. If the fault was corrected and the normal return path
was used then 0 was incorrectly pushed as the value for orig_ax.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:17:59 -04:00
Ian Campbell ee7b5958e2 xen: arm: make p2m operations NOPs
This makes common code less ifdef-y and is consistent with PVHVM on
x86.

Also note that phys_to_machine_mapping_valid should take a pfn
argument and make it do so.

Add __set_phys_to_machine, make set_phys_to_machine a simple wrapper
(on systems with non-nop implementations the outer one can allocate
new p2m pages).

Make __set_phys_to_machine check for identity mapping or invalid only.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:17:57 -04:00
Ian Campbell ef32f89298 xen: grant: use xen_pfn_t type for frame_list.
This correctly sizes it as 64 bit on ARM but leaves it as unsigned
long on x86 (therefore no intended change on x86).

The long and ulong guest handles are now unused (and a bit dangerous)
so remove them.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:17:55 -04:00
Ian Campbell 37ea0fcb6a xen: sysfs: fix build warning.
Define PRI macros for xen_ulong_t and xen_pfn_t and use to fix:
drivers/xen/sys-hypervisor.c:288:4: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'xen_ulong_t' [-Wformat]

Ideally this would use PRIx64 on ARM but these (or equivalent) don't
seem to be available in the kernel.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:17:51 -04:00
Wei Yongjun c2103b7ef7 xen/x86: remove duplicated include from enlighten.c
Remove duplicated include.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

CC: stable@vger.kernel.org
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-19 15:17:30 -04:00
Linus Torvalds fb06de0419 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel
Pull hexagon updates from Richard Kuo:
 "It includes the Hexagon UAPI changes from David Howells and some CR
  marking changes for the transition from Code Aurora to Linux
  Foundation."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
  Hexagon: Copyright marking changes
  UAPI: (Scripted) Disintegrate arch/hexagon/include/asm
2012-10-19 11:04:59 -07:00
Linus Torvalds 22054fbe7a PARISC for-linus on 20121019
This is a couple of high code motion patches (all within arch/parisc) I'd like
 to apply at -rc1 to avoid conflicts with anything else.  One moves us on to
 the generated instead of included asm file model and the other is a pull
 request from David Howells for UAPI disintegration.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'parisc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6

Pull PARISC changes from James Bottomley:
 "This is a couple of high code motion patches (all within arch/parisc)
  I'd like to apply at -rc1 to avoid conflicts with anything else.  One
  moves us on to the generated instead of included asm file model and
  the other is a pull request from David Howells for UAPI
  disintegration.

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

* tag 'parisc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  UAPI: (Scripted) Disintegrate arch/parisc/include/asm
  [PARISC] asm: redo generic includes
2012-10-19 11:02:02 -07:00
Chris Zankel 7216cabfff xtensa: add missing system calls to the syscall table
Add the following system calls to the syscall table:

fallocate
sendmmsg
umount2
syncfs
epoll_create1
inotify_init1
signalfd4
dup3
pipe2
timerfd_create
timerfd_settime
timerfd_gettime
eventfd2
preadv
pwritev
fanotify_init
fanotify_mark
process_vm_readv
process_vm_writev
name_to_handle_at
open_by_handle_at
sync_file_range
perf_event_open
rt_tgsigqueueinfo
clock_adjtime
prlimit64
kcmp

Note that we have to use the 'sys_sync_file_range2' version, so that
the 64-bit arguments are aligned correctly to the argument registers.

Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-19 10:46:44 -07:00
Chris Zankel 39070cb8a3 xtensa: minor compiler warning fix
Fix two compiler warnings complaining about truncating a value on
a 64-bit host, and about declaring an unused variable that is only
used for a specific configuration.

Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-19 10:24:20 -07:00
Geert Uytterhoeven 8a745ee13f m68k: Wire up kcmp
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2012-10-19 17:49:37 +02:00
H. Peter Anvin 4533d86270 Merge commit '5bc66170dc486556a1e36fd384463536573f4b82' into x86/urgent
From Borislav Petkov <bp@amd64.org>:

Below is a RAS fix which reverts the addition of a sysfs attribute
which we agreed is not needed, post-factum. And this should go in now
because that sysfs attribute is going to end up in 3.7 otherwise and
thus exposed to userspace; removing it then would be a lot harder.

This is done as a merge rather than a simple patch/cherry-pick since
the baseline for this patch was not in the previous x86/urgent.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-10-19 07:55:09 -07:00
Borislav Petkov 5bc66170dc x86, MCE: Remove bios_cmci_threshold sysfs attribute
450cc20103 ("x86/mce: Provide boot argument to honour bios-set CMCI
threshold") added the bios_cmci_threshold sysfs attribute which was
supposed to communicate to userspace tools that BIOS CMCI threshold has
been honoured.

However, this info is not of any importance to userspace - it should
rather get the actual error count it has been thresholded already from
MCi_STATUS[38:52].

So drop this before it becomes a used interface (good thing we caught
this early in 3.7-rc1, right after the merge window closed).

Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20121017105940.GA14590@x1.osrc.amd.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-10-19 15:22:29 +02:00
David Howells fd2c32a95b s390,uapi: do not use uapi/asm-generic/kvm_para.h
It turns out that S390 shouldn't use uapi/asm-generic/kvm_para.h since it
defines the functions in its non-UAPI kvm_para.h file.

#including <asm-generic/kvm_para.h> will first pick up
include/asm-generic/kvm_para.h, which defines conflicting functions.

Instead, partially revert commit 0420c87e64,
ungenericising this file and just inserting a comment to prevent the patch
program from deleting it.

cc: Yuanhan Liu <yuanhan.liu@intel.com>
cc: fengguang.wu@intel.com
Reported-by: Yuanhan Liu <yuanhan.liu@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-19 11:07:18 +02:00
David Howells 7e3cdf242f UAPI: Make arch/ia64/include/asm/kvm_para.h generic
Make arch/ia64/include/asm/kvm_para.h generic since it's the same as the
asm-generic version.  This deals with the problem when ia64 is compiled with
allmodconfig you get:

In file included from include/uapi/linux/kvm_para.h:26:0,
                 from include/linux/kvm_para.h:4,
                 from kernel/watchdog.c:28:
arch/ia64/include/asm/kvm_para.h:24:28: error: redefinition of 'kvm_arch_para_features'
include/asm-generic/kvm_para.h:16:28: note: previous definition of 'kvm_arch_para_features' was here
arch/ia64/include/asm/kvm_para.h:29:20: error: redefinition of 'kvm_check_and_clear_guest_paused'
include/asm-generic/kvm_para.h:11:20: note: previous definition of 'kvm_check_and_clear_guest_paused' was here

This does not happen for ia64 defconfig.

Reported-by: Yuanhan Liu <yuanhan.liu@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Yuanhan Liu <yuanhan.liu@intel.com>
cc: fengguang.wu@intel.com
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-10-18 17:27:43 -07:00
Richard Kuo e1858b2a21 Hexagon: Copyright marking changes
Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs.

Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-10-18 17:07:21 -05:00
David Howells 3ed8d11585 UAPI: (Scripted) Disintegrate arch/hexagon/include/asm
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2012-10-18 17:07:19 -05:00
Jussi Kivilinna 32bec973a8 crypto: aesni - fix XTS mode on x86-32, add wrapper function for asmlinkage aesni_enc()
Calling convention for internal functions and 'asmlinkage' functions is
different on x86-32. Therefore do not directly cast aesni_enc as XTS tweak
function, but use wrapper function in between. Fixes crash with "XTS +
aesni_intel + x86-32" combination.

Cc: stable@vger.kernel.org
Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-18 14:01:33 -07:00
Will Deacon 8f34a1da35 arm64: ptrace: use HW_BREAKPOINT_EMPTY type for disabled breakpoints
If a debugger tries to zero a hardware debug control register, the
kernel will try to infer both the type and length of the breakpoint
in order to sanity-check against the requested regset type. This will
fail because the encoding will appear as a zero-length breakpoint.

This patch changes the control register setting so that disabled
breakpoints are treated as HW_BREAKPOINT_EMPTY and no further
sanity-checking is required.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-18 20:15:34 +01:00
Will Deacon 7797d17c59 arm64: ptrace: make structure padding explicit for debug registers
The user_hwdebug_state structure contains implicit padding to conform to
the alignment requirements of the AArch64 ABI (namely that aggregates
must be aligned to their most aligned member).

This patch fixes the ptrace functions operating on struct
user_hwdebug_state so that the padding is handled correctly.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-18 20:15:31 +01:00
Catalin Marinas 16dd46bb78 arm64: No need to set the x0-x2 registers in start_thread()
For historical reasons, ARM used to set r0-r2 in start_thread() to the
first values on the user stack when starting a new user application. The
same logic has been inherited in AArch64. The x0 register is overridden
by the sys_execve() return value so it's always zero on success. The x1
and x2 registers are ignored by AArch64 and EABI AArch32 applications,
so we can safely remove the register setting for both native and compat
user space.

This also fixes a potential fault with the kernel accessing user space
stack directly.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-18 20:14:01 +01:00
Catalin Marinas f71a1a4266 arm64: Ignore memory blocks below PHYS_OFFSET
According to Documentation/arm64/booting.txt, the kernel image must be
loaded at a pre-defined offset from the start of RAM so that the kernel
can calculate PHYS_OFFSET based on this address. If the DT contains
memory blocks below this PHYS_OFFSET, report them and ignore the
corresponding memory range.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-18 20:14:00 +01:00
Catalin Marinas c60b0c2817 arm64: Fix the update_vsyscall() prototype
With commit 576094b7 (time: Introduce new GENERIC_TIME_VSYSCALL) the old
update_vsyscall() prototype is no longer available. This patch updates
the arm64 port.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
2012-10-18 20:14:00 +01:00
Catalin Marinas fea2acaa5c arm64: Select MODULES_USE_ELF_RELA
With commit 786d35d4 (make most arch asm/module.h files use
asm-generic/module.h) arm64 needs to enable MODULES_USE_ELF_RELA for
loadable modules.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <Will.Deacon@arm.com>
2012-10-18 20:11:54 +01:00
Linus Torvalds d63e210ef1 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Random small fixes across the MIPS code."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: CMP: Fix physical core number calculation logic
  MIPS: JZ4740: Forward declare struct uart_port in header.
  MIPS: JZ4740: Fix '#include guard' in serial.h
  MIPS: hugetlbfs: Fix hazard between tlb write and pagemask restoration.
  MIPS: Restore pagemask after dumping the TLB.
  MIPS: Hugetlbfs: Handle huge pages correctly in pmd_bad()
  MIPS: R5000: Fix TLB hazard handling.
  MIPS: tlbex: Deal with re-definition of label
  MIPS: Make __{,n,u}delay declarations match definitions and generic delay.h
2012-10-18 11:49:39 -07:00
Linus Torvalds a0a6a39ecb Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
 "Here are a handful of powerpc related fixes."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  cpuidle/powerpc: Fix snooze state problem in the cpuidle design on pseries.
  cpuidle/powerpc: Fix smt_snooze_delay functionality.
  cpuidle/powerpc: Fix target residency initialisation in pseries cpuidle
  powerpc: Build fix for powerpc KVM
  Revert "powerpc/perf: Use pmc_overflow() to detect rolled back events"
2012-10-18 11:48:48 -07:00
Linus Torvalds ec351832bc Sound fixes for 3.7-rc2
Significant changes are:
 - A regression fix for the new HD-audio LPIB delay counting,
   VGA-switcheroo race fix
 - ASoC ams-delta fix for the broken driver loading
 
 Otherwise a collection of mostly small / trivial fixes.
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Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Significant changes are:
   - A regression fix for the new HD-audio LPIB delay counting,
     VGA-switcheroo race fix
   - ASoC ams-delta fix for the broken driver loading

  Otherwise a collection of mostly small / trivial fixes."

* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: emu10k1: add chip details for E-mu 1010 PCIe card
  ALSA: hda - Always check array bounds in alc_get_line_out_pfx
  ASoC: bells: Correct typo in sub speaker DAI name for WM5110
  ALSA: hda - Stop LPIB delay counting on broken hardware
  ALSA: hda - Fix registration race of VGA switcheroo
  ALSA: hda - Clean up superfluous position_fix list entries
  ALSA: ac97 - Fix missing NULL check in snd_ac97_cvol_new()
  ASoC: codecs: da9055: Minor improvement in ALC calibration process
  ASoC: dmaengine: Correct Makefile when sound is built as module
  ASoC: fsi: don't reschedule DMA from an atomic context
  ASoC: fix documentation in soc-jack
  ARM: pxa: Fix build error caused by sram.h rename
  ASoC: wm2200: Fix non-inverted OUT2 mute control
  ASoC: wm2200: Use rev A register patches on rev B
  ASoC: bells: Correct typo in sub speaker DAI name for WM5110
  ASoC: ams-delta: Convert to use snd_soc_register_card()
  ASoC: omap-mcpdm: Remove OMAP revision check
  ASoC: Fix wrong include for McPDM
  ASoC: omap-abe-twl6040: Fix typo of Vibrator
  ASoC: twl6040: Fix Stream DAPM mapping
2012-10-18 11:47:07 -07:00
Michael Walle 1243163494 ARM: kirkwood: fix buttons on lsxl boards
Change event type to switch for the power and autopower switches.
Additionally, this patch aligns the keycodes with the other linkstation
boards already supported by linux.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-18 17:07:23 +00:00
Michael Walle a54841e552 ARM: kirkwood: fix LEDs names for lsxl boards
Don't use the specific board name in a the common device tree include file.
Instead use the common name 'lsxl'.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-18 17:07:14 +00:00
Jason Gunthorpe 1e9c06fb2b ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2
Move the CACHE_FEROCEON_L2 test to kirkwood_l2_init, since linking
fails on the reference to feroceon_l2_init.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-18 17:04:24 +00:00
Heiko Carstens d18f99c28b s390/cache: fix data/instruction cache output
The sysfs and procfs output of the instruction and data caches were
wrong: the output of the data cache provided that instruction cache
values and vice versa.
Fix this by using the correct type indication when issueing the
ecag instruction.

Reported-by: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:11 +02:00
Heiko Carstens c985cb37f1 s390: fix linker script for 31 bit builds
Because of a change in the s390 arch backend of binutils (commit 23ecd77
"Pick the default arch depending on the target size" in binutils repo)
31 bit builds will fail since the linker would now try to create 64 bit
binary output.
Fix this by setting OUTPUT_ARCH to s390:31-bit instead of s390.
Thanks to Andreas Krebbel for figuring out the issue.

Fixes this build error:

  LD      init/built-in.o
s390x-4.7.2-ld: s390:31-bit architecture of input file
 `arch/s390/kernel/head.o' is incompatible with s390:64-bit output

Cc: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:10 +02:00
Gerald Schaefer 0f58aac9af s390/thp: select HAVE_ARCH_TRANSPARENT_HUGEPAGE
Add missing select statement to arch/s390/Kconfig.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:10 +02:00
Michael Holzheu 9db8c050f6 s390/kdump: Use 64 bit mode for 0x10000 entry point
The 0x10000 entry point can be called in z/Arch architecture and 64 bit
addressing mode. Therefore this patch removes the unnecessary 31 bit
switch code from the kdump startup function.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:09 +02:00
Hendrik Brueckner f47586b24c perf_cpum_cf: Add support for counters available with IBM zEC12
Increase the maximum number of available counters and check if
the hardware supports the counter.  Support is indicated by the
version of the CPU-measurement counter facility.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:09 +02:00
Sebastian Ott 4e860696e0 s390/chpid: make headers usable (again)
Add back a hunk from "4dcc2a4 s390/chsc: make headers usable"
which was lost during the merge of the UAPI patch.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-10-18 17:50:07 +02:00
Will Deacon 3581fe0ef3 ARM: 7556/1: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD
The PERF_EVENT_IOC_PERIOD ioctl command can be used to change the
sample period of a running perf_event. Consequently, when calculating
the next event period, the new period will only be considered after the
previous one has overflowed.

This patch changes the calculation of the remaining event ticks so that
they are offset if the period has changed.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reported-by: Andreas Sandberg <andreas.sandberg@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-18 11:05:20 +01:00
Aaro Koskinen 2456f44dd7 ARM: 7555/1: kexec: fix segment memory addresses check
Commit c564df4db8 (ARM: 7540/1: kexec:
Check segment memory addresses) added a safety check with accidentally
reversed condition, and broke kexec functionality on ARM. Fix this.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-18 11:05:19 +01:00
jerin jacob 0cc40dac86 MIPS: CMP: Fix physical core number calculation logic
The CPUNum Field in EBase register is 10bit wide, so after 1 bit right
shift, the mask value should be 0x1ff.

Signed-off-by: jerin jacob <jerinjacobk@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4420/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-18 11:45:41 +02:00
Olof Johansson 327f81c455 Depends:
- Based against v3.7-rc1
  - Latest changes to arch/arm/mm/cache-tauros2.c
     c2b7e05 ARM: cache: add dt support for tauros2 cache
 
 Misc. fixes for latest changes to mach-dove/
 Fixes build breakage for mach-dove
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Merge tag 'mvebu_dove_late_fixes_for_v3.7' of git://git.infradead.org/users/jcooper/linux into fixes

From Jason Cooper:

Misc. fixes for latest changes to mach-dove/
Fixes build breakage for mach-dove

* tag 'mvebu_dove_late_fixes_for_v3.7' of git://git.infradead.org/users/jcooper/linux:
  ARM: dove: Add crypto engine to DT
  ARM: dove: Remove watchdog from DT
  ARM: dove: Restructure SoC device tree descriptor
  ARM: dove: Fix clock names of sata and gbe
  ARM: dove: Fix tauros2 device tree init
  ARM: dove: Add pcie clock support
2012-10-17 17:09:37 -07:00
Olof Johansson b5beb20d03 A boot problem fix for am33xx beaglebone caused by GPMC,
a regression fix for local timer, and a clockdomain locking fix.
 Also few minor fixes for boot time and sparse warnings.
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Merge tag 'omap-for-v3.7-rc1/fixes-take5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:

A boot problem fix for am33xx beaglebone caused by GPMC,
a regression fix for local timer, and a clockdomain locking fix.
Also few minor fixes for boot time and sparse warnings.

* tag 'omap-for-v3.7-rc1/fixes-take5-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory
  ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
  ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message
  ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck
  ARM: OMAP: resolve sparse warning concerning debug_card_init()
  ARM: OMAP4: Fix twd_local_timer_register regression
2012-10-17 17:05:25 -07:00
Olof Johansson b08d48414e ARM: tegra: fixes for 3.7-rc2
This branch contains a couple small fixes for Tegra for 3.7.
 
 * A fix for another clock rate calculation overflow
 * A revert of a change that removed the "timer" clock on Tegra, coupled
   with a fix for the confusing symbol name clash that triggered it.
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Merge tag 'tegra-for-3.7-fixes-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into fixes

From Stephen Warren: ARM: tegra: fixes for 3.7-rc2

This branch contains a couple small fixes for Tegra for 3.7.

* A fix for another clock rate calculation overflow
* A revert of a change that removed the "timer" clock on Tegra, coupled
  with a fix for the confusing symbol name clash that triggered it.

* tag 'tegra-for-3.7-fixes-for-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
  ARM: tegra: add tegra_timer clock
  ARM: tegra: rename tegra system timer
  ARM: tegra30: clk: Fix output_rate overflow

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-10-17 17:04:42 -07:00
Deepthi Dharwar 83dac59409 cpuidle/powerpc: Fix snooze state problem in the cpuidle design on pseries.
Earlier without cpuidle framework on pseries, the native arch
idle routine comprised of both snooze and nap
states.  smt_snooze_delay variable was used to delay
the idle process entry to deeper idle state like  nap.
With the coming of cpuidle, this arch specific idle was replaced
by two different idle routines, one for supporting snooze and other
for nap. This enabled addition of more
low level idle states on pseries in the future.

On adopting the generic cpuidle framework for POWER systems,
the decision of which idle state to choose from,  given a predicted
idle time is taken by the menu governor based on
target_residency and  exit_latency of the idle states.
target_residency is the minimum time to be resident in that idle state.
Exit_latency is time taken to exit out of idle state.
Deeper the idle state, both the target residency and exit latency
would be higher.

In the current design, smt_snooze_delay is used as target_residency
for the  snooze state which is incorrect, as it is not the
minimum but the maximum duration to be in snooze state.
This would  result in the governor in taking bad decision,
as presently target_residency of nap < target_residency of snooze
inspite of nap being deeper idle state.

This patch aims to fix this problem by replacing the smt_snooze_delay loop
in snooze state, with the need_resched()  as the governor is aware of
entry and exit of various idle transitions based on which
next idle time prediction.

The governor is intelligent enough to determine the idle state the needs to
be transitioned to and maintains a whole of heuristics including
io load, previous idle states predictions etc for the same, based on
which idle state entry decision is taken.

With this fix, of setting target_residency of snooze to 0
					     nap to smt_snooze_delay
if the predicted idle time is less
than smt_snooze_delay (target_residency of nap)
value governor would pick snooze state, else nap. This adhers to the
previous native idle design.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-18 10:57:25 +11:00
Deepthi Dharwar 8ea959a17f cpuidle/powerpc: Fix smt_snooze_delay functionality.
smt_snooze_delay was designed to  delay idle loop's nap entry
in the native idle code before it got  ported over to use as part of
the cpuidle framework.

A -ve value  assigned to smt_snooze_delay should result in
busy looping, in other words disabling the entry to nap state.

	- https://lists.ozlabs.org/pipermail/linuxppc-dev/2010-May/082450.html

This particular functionality can be achieved currently by
echo 1 > /sys/devices/system/cpu/cpu*/state1/disable
but it is broken when one assigns -ve value to  the smt_snooze_delay
variable either via sysfs entry or ppc64_cpu util.

This patch aims to fix this, by disabling nap state when smt_snooze_delay
variable is set to -ve value.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-18 10:57:24 +11:00
Deepthi Dharwar 817deb05df cpuidle/powerpc: Fix target residency initialisation in pseries cpuidle
Remove the redundant target residency initialisation in pseries_cpuidle_driver_init().
This is currently over-writing the residency time updated as part of the static
table, resulting in  all the idle states having the same target
residency of 100us which is incorrect. This may result in the menu governor making
wrong state decisions.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-18 10:57:24 +11:00
Aneesh Kumar K.V ce236ab576 powerpc: Build fix for powerpc KVM
Fix build failure for powerpc KVM by adding missing VPN_SHIFT definition
and the ';'

arch/powerpc/kvm/book3s_32_mmu_host.c: In function 'kvmppc_mmu_map_page':
arch/powerpc/kvm/book3s_32_mmu_host.c:176: error: 'VPN_SHIFT' undeclared (first use in this function)
arch/powerpc/kvm/book3s_32_mmu_host.c:176: error: (Each undeclared identifier is reported only once
arch/powerpc/kvm/book3s_32_mmu_host.c:176: error: for each function it appears in.)
arch/powerpc/kvm/book3s_32_mmu_host.c:178: error: expected ';' before 'next_pteg'
arch/powerpc/kvm/book3s_32_mmu_host.c:190: error: label 'next_pteg' used but not defined
make[1]: *** [arch/powerpc/kvm/book3s_32_mmu_host.o] Error 1

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-18 10:37:52 +11:00
Benjamin Herrenschmidt 72523d8082 Revert "powerpc/perf: Use pmc_overflow() to detect rolled back events"
This reverts commit 813312110b.

This revert was requested by the author of the patch as it seems
to cause system hangs with some low frequency events
2012-10-18 10:36:11 +11:00
Linus Torvalds 985c9e615a UAPI fixes 2012-10-17
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Merge tag 'uapi-fixes-20121017' of git://git.infradead.org/users/dhowells/linux-headers

Pull misc UAPI fixes from David Howells:
 "They do a number of things:

  (1) Import a patch from Catalin Marinas to extend the generic-y in
      Kbuild facility to uapi directories.

  (2) Make arch/tile's ucontext.h file use (1) and remove the header-y
      line from the kernel internal side of things.

  (3) Remove some now-empty conditional bits from include/linux/Kbuild.
      The contents got moved to the UAPI side of things along with new
      conditionals.

  (4) Deal with now-empty files:

     (a) Empty Kbuild files under include/ get removed.

     (b) Empty Kbuild files under arch/ get comments to hold them as
         they are likely to end up with generic-y or genhdr-y lines.
         Deleting them appears to work if we want to go that route.

     (c) Put a comment into uapi/asm-generic/kvm_para.h to prevent the
         patch program from deleting that, and made the arches with
         empty kvm_para.h uapi files use that instead of having their
         own files.

     (d) Put comments into four other empty uapi/ headers to prevent the
         patch program from deleting them.

  A question: Is this the right way to deal with the now-empty Kbuild
  files?

  The ones under include/ are unlikely to be used - even for generated
  files, I think - so getting rid of them is probably okay.  Once all
  the bits are in, we can probably remove all the Kbuild files under
  include/ that aren't also under include/uapi/.

  The ones under arch/ are more of an issue because of the potential for
  generic-y and genhdr-y."

* tag 'uapi-fixes-20121017' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: Make arch/sparc/include/uapi/asm/sigcontext.h non-empty
  UAPI: Make arch/sh/include/uapi/asm/hw_breakpoint.h non-empty
  UAPI: Make arch/mn10300/include/uapi/asm/setup.h non-empty
  UAPI: Put a comment into uapi/asm-generic/kvm_para.h and use it from arches
  UAPI: The tile arch uses the generic ucontext.h file
  UAPI: Place comments in empty arch Kbuilds to make them non-empty
  UAPI: Remove empty non-UAPI Kbuild files
  UAPI: Remove empty conditionals from include/linux/Kbuild
  UAPI: Make uapi/linux/irqnr.h non-empty
  uapi: Allow automatic generation of uapi/asm/ header files
2012-10-17 13:40:22 -07:00
Linus Torvalds ccbfddb78c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Two sparc64 perf bug fixes and add a sysrq facility so I can diagnose
  these kinds of problems more quickly in the future."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix bit twiddling in sparc_pmu_enable_event().
  sparc64: Add global PMU register dumping via sysrq.
  sparc64: Like x86 we should check current->mm during perf backtrace generation.
2012-10-17 12:40:44 -07:00
Daniel J Blueman 21c5e50e15 x86, amd, mce: Avoid NULL pointer reference on CPU northbridge lookup
When booting on a federated multi-server system (NumaScale), the
processor Northbridge lookup returns NULL; add guards to prevent this
causing an oops.

On those systems, the northbridge is accessed through MMIO and the
"normal" northbridge enumeration in amd_nb.c doesn't work since we're
generating the northbridge ID from the initial APIC ID and the last
is not unique on those systems. Long story short, we end up without
northbridge descriptors.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: stable@vger.kernel.org # 3.6
Link: http://lkml.kernel.org/r/1349073725-14093-1-git-send-email-daniel@numascale-asia.com
[ Boris: beef up commit message ]
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-10-17 11:25:32 -07:00
Jacob Shin 1bbbbe779a x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping.
On systems with very large memory (1 TB in our case), BIOS may report a
reserved region or a hole in the E820 map, even above the 4 GB range. Exclude
these from the direct mapping.

[ hpa: this should be done not just for > 4 GB but for everything above the legacy
  region (1 MB), at the very least.  That, however, turns out to require significant
  restructuring.  That work is well underway, but is not suitable for rc/stable. ]

Cc: stable@kernel.org   # > 2.6.32
Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Link: http://lkml.kernel.org/r/1319145326-13902-1-git-send-email-jacob.shin@amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-10-17 10:59:39 -07:00
Sebastian Hesselbarth a458926e16 ARM: dove: Add crypto engine to DT
Make use of DT support for the crypto engine on dove and remove
the obsolete init call.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:20:01 +00:00
Sebastian Hesselbarth dfdc16fa78 ARM: dove: Remove watchdog from DT
The watchdog on dove requires an interrupt that is not yet
available on DT. Therefore, the watchdog DT node is removed
until the corresponding chained intc is available.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:19:58 +00:00
Sebastian Hesselbarth 138ee96048 ARM: dove: Restructure SoC device tree descriptor
This patch adds proper ranges for all mapped addresses within
dove SoC and moves the interrupt controller node inside the simple-bus
node.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:19:55 +00:00
Sebastian Hesselbarth 3fbcd3d0a0 ARM: dove: Fix clock names of sata and gbe
This patch fixes wrong clock names of lately added clock gates
for sata and gbe (mv64xx_eth).

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:19:52 +00:00
Sebastian Hesselbarth fd57c65cbc ARM: dove: Fix tauros2 device tree init
During the review process of dove DT patches, Tauros2 cache
init call was changed and DT support added. This patch fixes
the call to Tauros2 init and adds a DT node. Moreover, plat/irq.h
include was missing from mach-dove/common.c.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:19:50 +00:00
Sebastian Hesselbarth 529b89ef7f ARM: dove: Add pcie clock support
As dove now has clock gating control ensure pcie ports grab their
clocks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-10-17 17:19:47 +00:00
Jon Hunter 8119024ef7 ARM: OMAP2+: Allow kernel to boot even if GPMC fails to reserve memory
Currently, if the GPMC driver fails to reserve memory when probed we will
call BUG() and the kernel will not boot. Instead of calling BUG(), return
an error from probe and allow kernel to boot.

Boot tested on AM335x beagle bone board and OMAP4430 Panda board.

V2 changes:
- Ensure that clock and memory resources are released on error.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-17 09:01:14 -07:00
Tero Kristo 64e29fd5ed ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
Previously the code only acquired spinlock after increasing / decreasing
the usecount value, which is wrong. This leaves a small window where
a task switch may occur between the check of the usecount and the actual
wakeup / sleep of the domain. Fixed by moving the spinlock locking before
the usecount access. Left the usecount as atomic_t if someone wants an
easy access to the parameter through atomic_read.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-17 09:00:31 -07:00
Olof Johansson 69648ae885 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
From Simon Horman:
"Please consider the following fix for the KZM-A9-GT board for 3.7.
 They both resolve fallout from recent IOMEM() changes."

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7779: use __iomem pointers for MMIO
  ARM: shmobile: armadillo800eva: __io abuse cleanup
2012-10-17 08:08:22 -07:00
Ralf Baechle a12265400c MIPS: JZ4740: Forward declare struct uart_port in header.
As suggested by Geert Uytterhoeven <geert@linux-m68k.org>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Lars-Peter Clausen <lars@metafoo.de>
2012-10-17 17:00:50 +02:00
Antony Pavlov a40b012f76 MIPS: JZ4740: Fix '#include guard' in serial.h
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Lars-Peter Clausen <lars@metafoo.de>
Patchwork: https://patchwork.linux-mips.org/patch/4424/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-17 16:58:51 +02:00
Arnd Bergmann 5276b6877e ARM: s3c: mark s3c2440_clk_add as __init_refok
s3c2440_clk_add is a subsys_interface method and calls clkdev_add_table,
which is marked as __init. The modpost script complains about this
because we must not call an __init function from a function in the .text
section, and we cannot reference an __init function from a subsys_interface
pointer.

I have verified that the only code path into s3c2440_clk_add() is
from "int __init s3c2440_init(void)", so s3c2440_clk_add can be marked
__init_refok instead.

Without this patch, building mini2440_defconfig results in:

WARNING: vmlinux.o(.text+0x9848): Section mismatch in reference from the function s3c2440_clk_add() to the function .init.text:clkdev_add_table()
The function s3c2440_clk_add() references
the function __init clkdev_add_table().
This is often because s3c2440_clk_add lacks a __init
annotation or the annotation of clkdev_add_table is wrong.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Ben Dooks <ben-linux@fluff.org>
2012-10-17 15:27:29 +02:00
Takashi Iwai c95d947f1f ASoC: Fixes for v3.7
Nothing too exciting except for the ams-delta change which is relatively
 lerge due to the fact that the driver loading had been totally broken as
 the driver needed a newer API to function.
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Merge tag 'asoc-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.7

Nothing too exciting except for the ams-delta change which is relatively
lerge due to the fact that the driver loading had been totally broken as
the driver needed a newer API to function.
2012-10-17 14:09:15 +02:00
David Howells bb2bab1774 UAPI: Make arch/sparc/include/uapi/asm/sigcontext.h non-empty
arch/sparc/include/uapi/asm/sigcontext.h was emitted by the UAPI disintegration
script as an empty file because the parent file had no UAPI stuff in it,
despite being marked with "header-y".

Unfortunately, the patch program deletes resultant empty files when applying a
kernel patch.

So just stick a comment in there as a placeholder.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: David S. Miller <davem@davemloft.net>
cc: sparclinux@vger.kernel.org
2012-10-17 12:32:35 +01:00
David Howells 588be3004d UAPI: Make arch/sh/include/uapi/asm/hw_breakpoint.h non-empty
arch/sh/include/uapi/asm/hw_breakpoint.h was emitted by the UAPI disintegration
script as an empty file because the parent file had no UAPI stuff in it,
despite being marked with "header-y".

Unfortunately, the patch program deletes resultant empty files when applying a
kernel patch.

So just stick a comment in there as a placeholder.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Paul Mundt <lethal@linux-sh.org>
cc: linux-sh@vger.kernel.org
2012-10-17 12:32:35 +01:00
David Howells 11b8d2460c UAPI: Make arch/mn10300/include/uapi/asm/setup.h non-empty
arch/mn10300/include/uapi/asm/setup.h was emitted by the UAPI disintegration
script as an empty file because the parent file had no UAPI stuff in it,
despite being marked with "header-y".

Unfortunately, the patch program deletes resultant empty files when applying a
kernel patch.

So just stick a comment in there as a placeholder.

Signed-off-by: David Howells <dhowells@redhat.com>
2012-10-17 12:32:35 +01:00
David Howells 0420c87e64 UAPI: Put a comment into uapi/asm-generic/kvm_para.h and use it from arches
Make uapi/asm-generic/kvm_para.h non-empty by addition of a comment to stop
the patch program from deleting it when it creates it.

Then delete empty arch-specific uapi/asm/kvm_para.h files and tell the Kbuild
files to use the generic instead.

Should this perhaps instead be a #warning or #error that the facility is
unsupported on this arch?

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Arnd Bergmann <arnd@arndb.de>
cc: Avi Kivity <avi@redhat.com>
cc: Marcelo Tosatti <mtosatti@redhat.com>
cc: kvm@vger.kernel.org
2012-10-17 12:32:07 +01:00
David Howells e4522fcb5a UAPI: The tile arch uses the generic ucontext.h file
Move the header-y and generic-y lines for ucontext.h from
arch/tile/include/asm/Kbuild to the uapi/ Kbuild as the asm-generic variant is
used.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Chris Metcalf <cmetcalf@tilera.com>
2012-10-17 12:31:16 +01:00
David Howells 4c7b279c1a UAPI: Place comments in empty arch Kbuilds to make them non-empty
Place comments in:

	arch/mips/include/asm/Kbuild
	arch/tile/include/arch/Kbuild

to make them non-empty so that the patch program doesn't remove them when it
reduces them to nothing.

Possibly they should be just deleted, but it's possible that they'll acquire
generic-y or genhdr-y lines in future, so I'm keeping them around for the
moment.

Note that MIPS will compile happily if the file is deleted instead.  I haven't
tested TILE, but I suspect it will be the same there.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Ralf Baechle <ralf@linux-mips.org>
cc: Chris Metcalf <cmetcalf@tilera.com>
2012-10-17 12:31:16 +01:00
Linus Torvalds 8d2b6b3ae2 SuperH updates for 3.7-rc2
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt.

The bulk of this is the UAPI disintegration for SH.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: Fix up more fallout from pointless ARM __iomem churn.
  sh: Wire up kcmp syscall.
  UAPI: (Scripted) Disintegrate arch/sh/include/asm
2012-10-16 19:24:00 -07:00
Linus Torvalds 90a24a4a7e Merge branch 'frv' (FRV patches from David Howells)
Merge emailed FRV fixes from David Howells.

* frv:
  FRV: Fix linux/elf-fdpic.h
  FRV: Fix const sections change
  FRV: Fix incorrect symbol in copy_thread()
  FRV: Fix VLIW packing constraint violation in entry.S
2012-10-16 18:49:22 -07:00
Andi Kleen b4b5087173 FRV: Fix const sections change
Add __pminitconst to fix the build, otherwise the following error can occur:

  arch/frv/kernel/setup.c:187:47: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
  arch/frv/kernel/setup.c:386:2: error: 'clock_cmodes' undeclared (first use in this function)
  arch/frv/kernel/setup.c:571:6: error: 'clock_cmodes' undeclared (first use in this function)
  make[2]: *** [arch/frv/kernel/setup.o] Error 1

http://kisskb.ellerman.id.au/kisskb/buildresult/7344691/

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-16 18:49:15 -07:00
David Howells ce7bfc7cde FRV: Fix incorrect symbol in copy_thread()
Fix an incorrect symbol in copy_thread():

  arch/frv/kernel/process.c: In function 'copy_thread':
  arch/frv/kernel/process.c:197: error: 'chilregs' undeclared (first use in this function)
  arch/frv/kernel/process.c:197: error: (Each undeclared identifier is reported only once
  arch/frv/kernel/process.c:197: error: for each function it appears in.)

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-16 18:49:15 -07:00
David Howells 819e1c53ac FRV: Fix VLIW packing constraint violation in entry.S
Fix VLIW packing constraint violation in entry.S:

  arch/frv/kernel/entry.S: Assembler messages:
  arch/frv/kernel/entry.S:871: Error: VLIW packing constraint violation

When packing CALLL with OR, CALLL must go in the first slot.  The
instructions are executed simultaneously, so it doesn't matter which way
round they're packed from that point of view.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-16 18:49:15 -07:00
Linus Torvalds afe594c791 A number of pinctrl fixes for the v3.7 series:
- duplicate includes, section markup, code mishaps
 - erroneous return value in errorpath on the bcm2835 driver
 - remove an unused sirf function that was causing build errors
 - multiple-platform compilation stubs and a missed code review
   comment fixup on the nomadik pin controller
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Merge tag 'pinctrl-fixes-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:
 "A number of pinctrl fixes for the v3.7 series:
   - duplicate includes, section markup, code mishaps
   - erroneous return value in errorpath on the bcm2835 driver
   - remove an unused sirf function that was causing build errors
   - multiple-platform compilation stubs and a missed code review
     comment fixup on the nomadik pin controller"

* tag 'pinctrl-fixes-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/nomadik: always use the simple irqdomain
  pinctrl/nomadik: provide stubs for legacy Nomadik
  pinctrl: remove duplicated include from pinctrl-xway.c
  pinctrl: sirf: remove sirfsoc_gpio_set_pull function
  pinctrl: fix return value in bcm2835_pinctrl_probe()
  pinctrl: remove duplicated include from pinctrl-bcm2835.c
  pinctrl: bcm2835: Use existing pointer to struct device
  pinctrl: samsung: use __devinit section for init code
2012-10-16 18:10:26 -07:00
Ralf Baechle fb944c9ba3 MIPS: hugetlbfs: Fix hazard between tlb write and pagemask restoration.
On some CPU the write to pagemask might complete before the TLB write
instruction reads from the pagemask register.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-17 01:01:21 +02:00
Ralf Baechle 01422ff491 MIPS: Restore pagemask after dumping the TLB.
Or bad things might happen if the last TLB entry isn't a basic size page.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-17 01:01:20 +02:00
Ralf Baechle 344afa6550 MIPS: Hugetlbfs: Handle huge pages correctly in pmd_bad()
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-10-17 01:01:12 +02:00
Sebastien Guiriec 49c58e8202 ARM: OMAP4: devices: fixup OMAP4 DMIC platform device error message
Correct DMIC hwmod lockup error message and replace printk() by
pr_err().

Signed-off-by: Sebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-16 14:05:50 -07:00
Benoit Cousson a2e5b90b08 ARM: OMAP2+: clock data: Add dev-id for the omap-gpmc dummy fck
The GPMC code has been converted to a driver by the following commit:

 commit da49687397
 Author: Afzal Mohammed <afzal@ti.com>
 Date:   Sun Sep 23 17:28:25 2012 -0600

   ARM: OMAP2+: gpmc: minimal driver support

It now requests a clock with con-id "fck" otherwise the probe will fails.

[    0.342010] omap-gpmc omap-gpmc: error: clk_get
[    0.346771] omap-gpmc: probe of omap-gpmc failed with error -2

Add the "omap-gmpc" dev-id and fck con-id to the already existing
gmpc-fck dummy clock.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-16 14:05:50 -07:00
Paul Walmsley 3fca4eba96 ARM: OMAP: resolve sparse warning concerning debug_card_init()
Commit 801475ccb2 ("ARM: OMAP: move
debug_card_init() function") results in the following new sparse
warning:

arch/arm/plat-omap/debug-devices.c:71:12: warning: symbol 'debug_card_init' was not declared. Should it be static?

Fix by implementing Tony's suggestion to add a "sideways include" to the
new location of the debug-devices.h file in arch/arm/mach-omap2/.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-16 14:05:50 -07:00
David Howells 70c1674f62 UAPI: (Scripted) Disintegrate arch/parisc/include/asm
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
2012-10-16 21:28:05 +01:00