Commit Graph

80234 Commits

Author SHA1 Message Date
Linus Torvalds 991657a39d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "A couple of bug fixes, the most hairy on is the flush_tlb_kernel_range
  fix.  Another case of "how could this ever have worked?"."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/kdump: Do not add standby memory for kdump
  drivers/i2c: remove !S390 dependency, add missing GENERIC_HARDIRQS dependencies
  s390/scm: process availability
  s390/scm_blk: suspend writes
  s390/scm_drv: extend notify callback
  s390/scm_blk: fix request number accounting
  s390/mm: fix flush_tlb_kernel_range()
  s390/mm: fix vmemmap size calculation
  s390: critical section cleanup vs. machine checks
2013-03-18 08:19:13 -07:00
Linus Torvalds 1c6ba37b3d arm-soc: bug fixes for 3.9-rc3
Things are calming down for arm-soc as well. This set of bug fixes is
 dominated in size by the at91 platform bug fixes. Some of them were
 meant to go through the framebuffer tree during the merge window, but
 since the framebuffer maintainer could not be reached, I offered to
 take them here. The other notable at91 change is the addition of pinctrl
 definitions to fix the NAND controller.
 
 The rest are mostly simple regression fixes:
 
 * Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
   renaming of the Kconfig symbol. You will get a trivial merge conflict
   here, we still want to remove it.
 * missing bits for clocks on imx and s5pv210
 * missing header inclusions in mmp and shmobile
 * typos in s5pv210 camera and vt8500 clock support code
 
 and three trivial fixes for pre-3.8 bugs:
 
 * an old bogus build warning in the joystick driver
 * a misleading Kconfig description
 * a NULL pointer check on davinci
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Arnd Bergmann:
 "Things are calming down for arm-soc as well.  This set of bug fixes is
  dominated in size by the at91 platform bug fixes.  Some of them were
  meant to go through the framebuffer tree during the merge window, but
  since the framebuffer maintainer could not be reached, I offered to
  take them here.  The other notable at91 change is the addition of
  pinctrl definitions to fix the NAND controller.

  The rest are mostly simple regression fixes:

   - Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
     renaming of the Kconfig symbol.  You will get a trivial merge
     conflict here, we still want to remove it.
   - missing bits for clocks on imx and s5pv210
   - missing header inclusions in mmp and shmobile
   - typos in s5pv210 camera and vt8500 clock support code

  and three trivial fixes for pre-3.8 bugs:

   - an old bogus build warning in the joystick driver
   - a misleading Kconfig description
   - a NULL pointer check on davinci"

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: fix CONFIG_VIRT_TO_BUS handling
  ARM: i.MX35: enable MAX clock
  ARM: Scorpion is a v7 architecture, not v6
  ARM: mmp: add platform_device head file in gplugd
  input/joystick: use get_cycles on ARM
  [media] s5p-fimc: fix s5pv210 build
  clk: vt8500: Fix "fix device clock divisor calculations"
  ARM: i.MX25: Fix DT compilation
  ARM: at91: fix infinite loop in at91_irq_suspend/resume
  ARM: at91: add gpio suspend/resume support when using pinctrl
  ARM: at91: fix LCD-wiring mode
  atmel_lcdfb: fix 16-bpp modes on older SOCs
  ARM: at91: dt: at91sam9x5: complete NAND pinctrl
  ARM: at91: dt: at91sam9x5: correct NAND pins comments
  ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
  ARM: shmobile: marzen: Include mmc/host.h
  ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
  ARM: S5PV210: Fix PL330 DMA controller clkdev entries
2013-03-18 08:17:14 -07:00
Linus Torvalds a15cd063e1 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt:
 "Here's a few powerpc fixes for 3.9, mostly regressions (though not all
  from 3.9 merge window) that we've been hammering into shape over the
  last couple of weeks.  They fix booting on Cell and G5 among other
  things (yes, we've been a bit sloppy with older machines this time
  around)."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Rename USER_ESID_BITS* to ESID_BITS*
  powerpc: Update kernel VSID range
  powerpc: Make VSID_BITS* dependency explicit
  powerpc: Make sure that we alays include CONFIG_BINFMT_ELF
  powerpc/ptrace: Fix brk.len used uninitialised
  powerpc: Fix -mcmodel=medium breakage in prom_init.c
  powerpc: Remove last traces of POWER4_ONLY
  powerpc: Fix cputable entry for 970MP rev 1.0
  powerpc: Fix STAB initialization
2013-03-18 08:12:41 -07:00
Linus Torvalds 6210d421c2 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just three fixes this time - a fix for a fix for our memset function,
  fixing the dummy clockevent so that it doesn't interfere with real
  hardware clockevents, and fixing a build error for Tegra."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
  ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
  ARM: 7670/1: fix the memset fix
2013-03-18 08:11:53 -07:00
Arnd Bergmann b4811bacbc ARM: fix CONFIG_VIRT_TO_BUS handling
887cbce0 "arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS"
and  4febd95a8 "Select VIRT_TO_BUS directly where needed" from
Stephen Rothwell changed globally how CONFIG_VIRT_TO_BUS is
selected, while my own a5d533ee0 "ARM: disable virt_to_bus/
virt_to_bus almost everywhere" was merged at the same time and
changed which platforms select it on ARM.

The result of this conflict was that we again see CONFIG_VIRT_TO_BUS
on all ARM systems. This patch fixes up the problem and removes
CONFIG_ARCH_NO_VIRT_TO_BUS again on ARM.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2013-03-18 13:49:57 +00:00
Arnd Bergmann ace71f49da Resolve a build failure present since v3.9-rc1
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Merge tag 'renesas-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

From Simon Horman <horms@verge.net.au>:

Resolve a build failure present since v3.9-rc1

* tag 'renesas-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: marzen: Include mmc/host.h

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-18 11:54:01 +01:00
Andreas Schwab 18931c8927 arm64: fix padding computation in struct ucontext
The expression to compute the padding needed to fill the uc_sigmask field
to 1024 bits actually computes the padding needed for 1080 bits.
Fortunately, due to the 16-byte alignment of the following field
(uc_mcontext) the definition in glibc contains enough bytes of padding
after uc_sigmask so that the overall offsets and size match in both
definitions.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-18 10:42:16 +00:00
Catalin Marinas a2c91547b5 arm64: Fix build error with !SMP
The __atomic_hash is only defined when SMP is enabled but the
arm64ksyms.c exports it even for the UP case.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-18 10:42:14 +00:00
Catalin Marinas 0d96724e29 arm64: Removed unused variable in compat_setup_rt_frame()
Recent clean-up of the compat signal code left an unused 'stack'
variable.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-03-18 10:12:56 +00:00
Stephane Eranian fd4a5aef00 perf/x86: Add SNB/SNB-EP scheduling constraints for cycle_activity event
Add scheduling constraints for SNB/SNB-EP CYCLE_ACTIVITY event
as defined by SDM Jan 2013 edition. The STALLS umasks are
combinations with the NO_DISPATCH umask.

Signed-off-by: Stephane Eranian <eranian@gmail.com>
Cc: peterz@infradead.org
Cc: ak@linux.intel.com
Cc: jolsa@redhat.com
Link: http://lkml.kernel.org/r/20130317134957.GA8550@quad
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-18 10:23:13 +01:00
Masami Hiramatsu 9a556ab998 kprobes/x86: Check Interrupt Flag modifier when registering probe
Currently kprobes check whether the copied instruction modifies
IF (interrupt flag) on each probe hit. This results not only in
introducing overhead but also involving
inat_get_opcode_attribute into the kprobes hot path, and it can
cause an infinite recursive call (and kernel panic in the end).

Actually, since the copied instruction itself can never be modified
on the buffer, it is needless to analyze the instruction on every
probe hit.

To fix this issue, we check it only once when registering probe
and store the result on ainsn->if_modifier.

Reported-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20130314115242.19690.33573.stgit@mhiramat-M0-7522
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-18 10:21:23 +01:00
Vineet Gupta a37b2dc52b ARC: Remove SET_PERSONALITY (tracks cross-arch change)
Tracks commit e72837e3e7 "default SET_PERSONALITY() in linux/elf.h"

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-18 14:37:05 +05:30
Ingo Molnar a0bf225db7 perf/urgent fixes:
. perf probe: Fix segfault due to testing the wrong pointer for NULL,
   from Ananth N Mavinakayanahalli.
 
 . libtraceevent: Remove hard coded include to /usr/local/include in
   Makefile, which causes cross builds to include host header files,
   fix from Jack Mitchell.
 
 . perf record: Use the right target interface for synthesizing
   threads when --cpu/-C option is used, fix from Jiri Olsa.
 
 . Check if -DFORTIFY_SOURCE=2 is allowed, as gcc 4.7.2 defines
   it and then the build is broken when it is redefined in perf,
   fix from Marcin Slusarz.
 
 . Fix build with NO_NEWT=1, that can happen explicitely or when
   the newt-devel package is not installed, from Michael Ellerman.
 
 . perf/POWER7: Create a sysfs format entry for Power7 events, missing
   patch from a patchseries already merged, from Sukadev Bhattiprolu.
 
 . Fix LIBNUMA build with glibc 2.12 and older, from Vinson Lee.
 
 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:

. perf probe: Fix segfault due to testing the wrong pointer for NULL,
  from Ananth N Mavinakayanahalli.

. libtraceevent: Remove hard coded include to /usr/local/include in
  Makefile, which causes cross builds to include host header files,
  fix from Jack Mitchell.

. perf record: Use the right target interface for synthesizing
  threads when --cpu/-C option is used, fix from Jiri Olsa.

. Check if -DFORTIFY_SOURCE=2 is allowed, as gcc 4.7.2 defines
  it and then the build is broken when it is redefined in perf,
  fix from Marcin Slusarz.

. Fix build with NO_NEWT=1, that can happen explicitely or when
  the newt-devel package is not installed, from Michael Ellerman.

. perf/POWER7: Create a sysfs format entry for Power7 events, missing
  patch from a patchseries already merged, from Sukadev Bhattiprolu.

. Fix LIBNUMA build with glibc 2.12 and older, from Vinson Lee.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-18 10:00:56 +01:00
Linus Torvalds 2a6e06b2ae perf,x86: fix wrmsr_on_cpu() warning on suspend/resume
Commit 1d9d8639c0 ("perf,x86: fix kernel crash with PEBS/BTS after
suspend/resume") fixed a crash when doing PEBS performance profiling
after resuming, but in using init_debug_store_on_cpu() to restore the
DS_AREA mtrr it also resulted in a new WARN_ON() triggering.

init_debug_store_on_cpu() uses "wrmsr_on_cpu()", which in turn uses CPU
cross-calls to do the MSR update.  Which is not really valid at the
early resume stage, and the warning is quite reasonable.  Now, it all
happens to _work_, for the simple reason that smp_call_function_single()
ends up just doing the call directly on the CPU when the CPU number
matches, but we really should just do the wrmsr() directly instead.

This duplicates the wrmsr() logic, but hopefully we can just remove the
wrmsr_on_cpu() version eventually.

Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-17 15:44:43 -07:00
H Hartley Sweeten 605c357bb4 ARM: ep93xx: Fix wait for UART FIFO to be empty
Commit 210dce5f "ARM: ep93xx: properly wait for UART FIFO to be empty"

Removed the timeout loop while waiting for the uart transmit fifo to
empty. Some bootloaders leave the uart in a state where there might
be bytes in the uart that are not transmitted when execution is handed
over to the kernel. This results in a deadlocked system while waiting
for the fifo to empty.

Add back the timeout wait to prevent the deadlock.

Increase the wait time to hopefully prevent the decompressor corruption
that lead to commit 210dce5f. This corruption was probably due to a
slow uart baudrate. The 10* increase in the wait time should be enough
for all cases.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>
2013-03-18 09:40:38 +11:00
Aneesh Kumar K.V af81d7878c powerpc: Rename USER_ESID_BITS* to ESID_BITS*
Now we use ESID_BITS of kernel address to build proto vsid. So rename
USER_ESIT_BITS to ESID_BITS

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
2013-03-17 12:45:44 +11:00
Aneesh Kumar K.V c60ac5693c powerpc: Update kernel VSID range
This patch change the kernel VSID range so that we limit VSID_BITS to 37.
This enables us to support 64TB with 65 bit VA (37+28). Without this patch
we have boot hangs on platforms that only support 65 bit VA.

With this patch we now have proto vsid generated as below:

We first generate a 37-bit "proto-VSID". Proto-VSIDs are generated
from mmu context id and effective segment id of the address.

For user processes max context id is limited to ((1ul << 19) - 5)
for kernel space, we use the top 4 context ids to map address as below
0x7fffc -  [ 0xc000000000000000 - 0xc0003fffffffffff ]
0x7fffd -  [ 0xd000000000000000 - 0xd0003fffffffffff ]
0x7fffe -  [ 0xe000000000000000 - 0xe0003fffffffffff ]
0x7ffff -  [ 0xf000000000000000 - 0xf0003fffffffffff ]

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
2013-03-17 12:39:06 +11:00
Aneesh Kumar K.V e39d1a4714 powerpc: Make VSID_BITS* dependency explicit
VSID_BITS and VSID_BITS_1T depends on the context bits  and user esid
bits. Make the dependency explicit

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.8]
2013-03-17 12:38:15 +11:00
Stephen Rothwell d812c0e1f9 powerpc: Make sure that we alays include CONFIG_BINFMT_ELF
Our kernel is not much good without BINFMT_ELF and this fixes a build
warning on 64 bit allnoconfig builds:

warning: (COMPAT) selects COMPAT_BINFMT_ELF which has unmet direct dependencies (COMPAT && BINFMT_ELF)

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-17 12:35:09 +11:00
Michael Neuling 2bb78efab4 powerpc/ptrace: Fix brk.len used uninitialised
With some CONFIGS it's possible that in ppc_set_hwdebug, brk.len is
uninitialised before being used.  It has been reported that GCC 4.2 will
produce the following error in this case:

  arch/powerpc/kernel/ptrace.c:1479: warning: 'brk.len' is used uninitialized in this function
  arch/powerpc/kernel/ptrace.c:1381: note: 'brk.len' was declared here

This patch corrects this.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Reported-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-17 12:35:06 +11:00
Linus Torvalds 236595879b OpenRISC bug fixes for 3.9
* The GPIO descriptor work has exposed how broken the non-GPIOLIB
   bits for OpenRISC were.  We now require GPIOLIB as this is the
   preferred way forward.
 
 * The system.h split introduced a bug in llist.h for arches using
   asm-generic/cmpxchg.h directly, which is currently only OpenRISC.
   The patch here moves two defines from asm-generic/atomic.h to
   asm-generic/cmpxchg.h to make things work as they should.
 
 * The VIRT_TO_BUS selector was added for OpenRISC, but OpenRISC does
   not have the virt_to_bus methods, so there's a patch to remove it
   again.
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Merge tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux

Pull OpenRISC bug fixes from Jonas Bonn:

 - The GPIO descriptor work has exposed how broken the non-GPIOLIB bits
   for OpenRISC were.  We now require GPIOLIB as this is the preferred
   way forward.

 - The system.h split introduced a bug in llist.h for arches using
   asm-generic/cmpxchg.h directly, which is currently only OpenRISC.
   The patch here moves two defines from asm-generic/atomic.h to
   asm-generic/cmpxchg.h to make things work as they should.

 - The VIRT_TO_BUS selector was added for OpenRISC, but OpenRISC does
   not have the virt_to_bus methods, so there's a patch to remove it
   again.

* tag 'for-3.9-rc3' of git://openrisc.net/jonas/linux:
  openrisc: remove HAVE_VIRT_TO_BUS
  asm-generic: move cmpxchg*_local defs to cmpxchg.h
  openrisc: require gpiolib
2013-03-15 18:05:37 -07:00
Linus Torvalds 9e1a0aab60 Char/misc fixes for 3.9-rc2
Here are some tiny fixes for the w1 drivers and the final removal patch
 for getting rid of CONFIG_EXPERIMENTAL (all users of it are now gone
 from your tree, this just drops the Kconfig item itself.)
 
 All have been in the linux-next tree for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg Kroah-Hartman:
 "Here are some tiny fixes for the w1 drivers and the final removal
  patch for getting rid of CONFIG_EXPERIMENTAL (all users of it are now
  gone from your tree, this just drops the Kconfig item itself.)

  All have been in the linux-next tree for a while"

* tag 'char-misc-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  final removal of CONFIG_EXPERIMENTAL
  w1: fix oops when w1_search is called from netlink connector
  w1-gpio: fix unused variable warning
  w1-gpio: remove erroneous __exit and __exit_p()
  ARM: w1-gpio: fix erroneous gpio requests
2013-03-15 18:04:38 -07:00
Linus Torvalds c7f17deb31 Merge branch 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fix from Marek Szyprowski:
 "An important fix for all ARM architectures which use ZONE_DMA.
  Without it dma_alloc_* calls with GFP_ATOMIC flag might have allocated
  buffers outsize DMA zone."

* 'fixes-for-3.9' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  ARM: DMA-mapping: add missing GFP_DMA flag for atomic buffer allocation
2013-03-15 17:35:03 -07:00
Linus Torvalds de1893f640 This is the first batch of MFD fixes for 3.9.
With this one we have:
 
 - An ab8500 build failure fix.
 - An ab8500 device tree parsing fix.
 - A fix for twl4030_madc remove routine to work properly (when built-in).
 - A fix for properly registering palmas interrupt handler.
 - A fix for omap-usb init routine to actually write into the hostconfig
   register.
 - A couple of warning fixes for ab8500-gpadc and tps65912.
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Merge tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes

Pull MFD fixes from Samuel Ortiz:
 "This is the first batch of MFD fixes for 3.9.

  With this one we have:

   - An ab8500 build failure fix.
   - An ab8500 device tree parsing fix.
   - A fix for twl4030_madc remove routine to work properly (when
     built-in).
   - A fix for properly registering palmas interrupt handler.
   - A fix for omap-usb init routine to actually write into the
     hostconfig register.
   - A couple of warning fixes for ab8500-gpadc and tps65912"

* tag 'mfd-fixes-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-fixes:
  mfd: twl4030-madc: Remove __exit_p annotation
  mfd: ab8500: Kill "reg" property from binding
  mfd: ab8500-gpadc: Complain if we fail to enable vtvout LDO
  mfd: wm831x: Don't forward declare enum wm831x_auxadc
  mfd: twl4030-audio: Fix argument type for twl4030_audio_disable_resource()
  mfd: tps65912: Declare and use tps65912_irq_exit()
  mfd: palmas: Provide irq flags through DT/platform data
  mfd: Make AB8500_CORE select POWER_SUPPLY to fix build error
  mfd: omap-usb-host: Actually update hostconfig
2013-03-15 17:34:01 -07:00
Santosh Shilimkar f7db706b13 ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
With recent arm broadcast time clean-up from Mark Rutland, the dummy
broadcast device is always registered with timer subsystem. And since
the rating of the dummy clock event is very high, it may be preferred
over a real clock event.

This is a change in behavior from past and not an intended one. So
reduce the rating of the dummy clock-event so that real clock-event
device is selected when available.

Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-03-15 17:19:31 +00:00
Stephane Eranian 1d9d8639c0 perf,x86: fix kernel crash with PEBS/BTS after suspend/resume
This patch fixes a kernel crash when using precise sampling (PEBS)
after a suspend/resume. Turns out the CPU notifier code is not invoked
on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly
by the kernel and keeps it power-on/resume value of 0 causing any PEBS
measurement to crash when running on CPU0.

The workaround is to add a hook in the actual resume code to restore
the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0,
the DS_AREA will be restored twice but this is harmless.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-15 09:26:35 -07:00
Arnd Bergmann c06e51db93 Two small ARM i.MX fixes for v3.9-rc
- Fix i.MX25 DT compilation
 - Enable MAX clk on i.MX35
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Merge tag 'arm-imx-fixes-for-3.9-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer <s.hauer@pengutronix.de>:

Two small ARM i.MX fixes for v3.9-rc

- Fix i.MX25 DT compilation
- Enable MAX clk on i.MX35

* tag 'arm-imx-fixes-for-3.9-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: i.MX35: enable MAX clock
  ARM: i.MX25: Fix DT compilation

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-15 15:31:20 +01:00
Sascha Hauer 5dc2eb7da1 ARM: i.MX35: enable MAX clock
The i.MX35 has two bits per clock gate which are decoded as follows:
      0b00 -> clock off
      0b01 -> clock is on in run mode, off in wait/doze
      0b10 -> clock is on in run/wait mode, off in doze
      0b11 -> clock is always on

The reset value for the MAX clock is 0b10.

The MAX clock is needed by the SoC, yet unused in the Kernel, so the
common clock framework will disable it during late init time. It will
only disable clocks though which it detects as being turned on. This
detection is made depending on the lower bit of the gate. If the reset
value has been altered by the bootloader to 0b11 the clock framework
will detect the clock as turned on, yet unused, hence it will turn it
off and the system locks up.

This patch turns the MAX clock on unconditionally making the Kernel
independent of the bootloader.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-03-15 14:52:54 +01:00
Stephen Boyd 8dda05ccd8 ARM: Scorpion is a v7 architecture, not v6
Scorpion processors have always been v7 CPUs. Fix the Kconfig
text to reflect this.

Reported-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-15 11:37:42 +01:00
Arnd Bergmann 04cf1440c0 Merge branch 'armsoc/fix' of git://github.com/hzhuang1/linux into fixes
From Haojian Zhuang <haojian.zhuang@gmail.com>:
* 'armsoc/fix' of git://github.com/hzhuang1/linux:
  ARM: mmp: add platform_device head file in gplugd

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-15 11:18:55 +01:00
Haojian Zhuang e71dc5f787 ARM: mmp: add platform_device head file in gplugd
arch/arm/mach-mmp/gplugd.c: In function ‘gplugd_init’:
arch/arm/mach-mmp/gplugd.c:188:2: error: implicit declaration of
function ‘platform_device_register’
[-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [arch/arm/mach-mmp/gplugd.o] Error 1
make: *** [arch/arm/mach-mmp] Error 2

So append platform_device.h to resolve build issue.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
2013-03-15 16:27:53 +08:00
Arnd Bergmann a5e9902842 Merge branch 'v3.9-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:

* 'v3.9-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Add dma-cells for generic dma binding support for PL330
  ARM: S5PV210: Fix PL330 DMA controller clkdev entries

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-14 23:57:57 +01:00
Arnd Bergmann 7ac6c89189 Two patches for Device Tree on at91sam9x5/NAND.
Two more for fixing PM suspend/resume IRQ on AIC5 and
 GPIO used with pinctrl.
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

From Nicolas Ferre <nicolas.ferre@atmel.com>:

Two patches for Device Tree on at91sam9x5/NAND.
Two more for fixing PM suspend/resume IRQ on AIC5 and
GPIO used with pinctrl.

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91: fix infinite loop in at91_irq_suspend/resume
  ARM: at91: add gpio suspend/resume support when using pinctrl
  ARM: at91: dt: at91sam9x5: complete NAND pinctrl
  ARM: at91: dt: at91sam9x5: correct NAND pins comments

Includes an update to -rc2

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-14 23:55:59 +01:00
Arnd Bergmann 01ffe957e2 [media] s5p-fimc: fix s5pv210 build
56bc911 "[media] s5p-fimc: Redefine platform data structure for fimc-is"
changed the bus_type member of struct fimc_source_info treewide, but
got one instance wrong in mach-s5pv210, which was evidently not
even build tested.

This adds the missing change to get s5pv210_defconfig to build again.
Applies on the Mauro's media tree.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-14 22:34:49 +01:00
Sascha Hauer 42b8432842 ARM: i.MX25: Fix DT compilation
The i.MX25 DT machine descriptor calls a non existing imx25_timer_init()
function. This patch adds it to fix compilation.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-03-14 12:52:39 +01:00
Ludovic Desroches 0ed66befaa ARM: at91: fix infinite loop in at91_irq_suspend/resume
Fix an infinite loop when suspending or resuming a device with AIC5.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-14 09:37:55 +01:00
Ludovic Desroches 647f8d94a4 ARM: at91: add gpio suspend/resume support when using pinctrl
gpio suspend/resume and wakeup sources where not managed when using pinctrl so
it was impossible to wake up the system with a gpio.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-14 09:37:42 +01:00
Marek Szyprowski 9d1400cf79 ARM: DMA-mapping: add missing GFP_DMA flag for atomic buffer allocation
Atomic pool should always be allocated from DMA zone if such zone is
available in the system to avoid issues caused by limited dma mask of
any of the devices used for making an atomic allocation.

Reported-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Stable <stable@vger.kernel.org>	[v3.6+]
2013-03-14 09:25:19 +01:00
David Howells 415586c9e6 UAPI: fix endianness conditionals in M32R's asm/stat.h
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be
compared against __BYTE_ORDER in preprocessor conditionals where these are
exposed to userspace (that is they're not inside __KERNEL__ conditionals).

However, in the main kernel the norm is to check for
"defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and
this has incorrectly leaked into the userspace headers.

The definition of struct stat64 in M32R's asm/stat.h is wrong in this way.
 Note that userspace will likely interpret the field order incorrectly as
the big-endian variant on little-endian machines - depending on header
inclusion order.

[!!!] NOTE [!!!]  This patch may adversely change the userspace API.  It might
be better to fix the ordering of st_blocks and __pad4 in struct stat64.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-13 15:21:49 -07:00
John Crispin a4285b99e0 MIPS: Fix inconsistent formatting inside /proc/cpuinfo
There is a missing " " inside /proc/cpuinfo.

The bad commit was:
commit a96102be70
Author: Steven J. Hill <sjhill@mips.com>
Date:   Fri Dec 7 04:31:36 2012 +0000
MIPS: Add printing of ISA version in cpuinfo.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4988/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-13 23:08:36 +01:00
Sukadev Bhattiprolu 3bf7b07ece perf/POWER7: Create a sysfs format entry for Power7 events
Create a sysfs entry, '/sys/bus/event_source/devices/cpu/format/event'
which describes the format of the POWER7 PMU events.

This code is based on corresponding code in x86.

Changelog[v4]:  [Michael Ellerman, Paul Mckerras] The event format is different
		for other POWER cpus. So move the code to POWER7-specific,
		power7-pmu.c Also, the POWER7 format uses bits 0-19 not 0-20.

Changelog[v2]: [Jiri Osla] Use PMU_FORMAT_ATTR rather than duplicating code.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Tested-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20130306054826.GA14627@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-13 17:01:04 -03:00
Paul Walmsley 92702df357 ARM: OMAP4: PM: fix PM regression introduced by recent clock cleanup
Commit 17b7e7d335 ("ARM: OMAP4:
clock/hwmod data: start to remove some IP block control "clocks"")
introduced a regression preventing the L3INIT clockdomain of OMAP4
systems from entering idle.  This in turn prevented these systems from
entering full chip clock-stop.

The regression was caused by the incorrect removal of a so-called
"optional functional clock" from the OMAP4 clock data.  This wasn't
caught for two reasons.  First, I missed the retention entry failure
in the branch test logs:

http://www.pwsan.com/omap/testlogs/cleanup_a_3.9/20130126014242/pm/4460pandaes/4460pandaes_log.txt

Second, the integration data for the OCP2SCP PHY IP block, added by
commit 0c6688753f ("ARM: OMAP4: hwmod
data: add remaining USB-related IP blocks"), should have associated this
clock with the IP block, but did not.

Fix by adding back the so-called "optional" functional clock to the
clock data, and by linking that clock to the OCP2SCP PHY IP block
integration hwmod data.

The problem patch was discovered by J, Keerthy <j-keerthy@ti.com>.

Cc: Keerthy <j-keerthy@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-13 04:27:32 -06:00
Grazvydas Ignotas 092bc089c2 ARM: OMAP3: hwmod data: keep MIDLEMODE in force-standby for musb
For some unknown reason, allowing hwmod to control MIDLEMODE causes
core_pwrdm to not hit idle states for musb in DM3730 at least.
I've verified that setting any MIDLEMODE value other than "force
standby" before enabling the device causes subsequent suspend
attempts to fail with core_pwrdm not entering idle states, even
if the driver is unloaded and "force standby" is restored before
suspend attempt. To recover from this, soft reset can be used, but
that's not suitable solution for suspend.

Keeping the register set at force standby (reset value) makes it work
and device still functions properly, as musb has driver-controlled
OTG_FORCESTDBY register that controls MSTANDBY signal.
Note that TI PSP kernels also have similar workarounds.

This patch also fixes HWMOD_SWSUP_MSTANDBY documentation to match the
actual flag name.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-13 04:13:07 -06:00
Jon Hunter 71b37071f0 ARM: OMAP4: clock data: lock USB DPLL on boot
Some versions of the u-boot bootloader do not lock the USB DPLL and
when the USB DPLL is not locked, then it is observed that the L3INIT
power domain does not transition to retention state during kernel
suspend on OMAP4 devices. Fix this by locking the USB DPLL at 960 MHz
on kernel boot.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-13 04:11:23 -06:00
Aaro Koskinen 13872ebb91 ARM: OMAP1: fix USB host on 1710
There is a long-standing bug that OHCI USB host controller does
not respond on 1710, because of wrong clock definitions. See e.g.
http://marc.info/?l=linux-omap&m=119634441229321&w=2. All register reads
return just zeroes:

[    1.896606] ohci ohci: OMAP OHCI
[    1.912597] ohci ohci: new USB bus registered, assigned bus number 1
[    1.933776] ohci ohci: irq 38, io mem 0xfffba000
[    2.012573] ohci ohci: init err (00000000 0000)
[    2.030334] ohci ohci: can't start
[    2.046661] ohci ohci: startup error -75
[    2.063201] ohci ohci: USB bus 1 deregistered

After some experiments, it seems that when changing the usb_dc_ck /
SOFT_REQ enable bit from USB_REQ_EN_SHIFT to SOFT_USB_OTG_DPLL_REQ_SHIFT
(like done also on 7XX), the USB appears to work:

[    2.183959] ohci ohci: OMAP OHCI
[    2.198242] ohci ohci: new USB bus registered, assigned bus number 1
[    2.215820] ohci ohci: irq 38, io mem 0xfffba000
[    2.324798] hub 1-0:1.0: USB hub found
[    2.361267] hub 1-0:1.0: 3 ports detected

The patch is tested on Nokia 770.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-03-13 04:10:57 -06:00
Richard Genoud 7f06472f1c ARM: at91: dt: at91sam9x5: complete NAND pinctrl
There was only chip enable and readdy/busy pins for the nand controller.
This add the rest of the pins.
pinctrl_nand_16bits contains the specific muxes for 16 bits NANDs.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-13 10:25:24 +01:00
Richard Genoud f04feec250 ARM: at91: dt: at91sam9x5: correct NAND pins comments
Comments on NAND pins where inverted.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-13 10:25:07 +01:00
Jonas Bonn 6af609515d openrisc: remove HAVE_VIRT_TO_BUS
The OpenRISC arch doesn't actually have the virt_to_bus methods

Signed-off-by: Jonas Bonn <jonas@southpole.se>
2013-03-13 06:12:39 +01:00
Jonas Bonn d4cb776f33 openrisc: require gpiolib
The recent move to GPIO descriptors breaks the OpenRISC build.  Requiring
gpiolib resolves this; using gpiolib exclusively is also the recommended
way forward for all arches by the developers working on these GPIO changes.
The non-gpiolib implementation for OpenRISC never worked anyway...

Signed-off-by: Jonas Bonn <jonas@southpole.se>
2013-03-13 06:11:04 +01:00
Linus Torvalds 7946844ae8 Fixes:
* Compile warnings and errors (one on x86, two on ARM)
  * WARNING in xen-pciback
  * Use the acpi_processor_get_performance_info instead of the 'register' version
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Merge tag 'stable/for-linus-3.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - Compile warnings and errors (one on x86, two on ARM)
 - WARNING in xen-pciback
 - Use the acpi_processor_get_performance_info instead of the 'register'
   version

* tag 'stable/for-linus-3.9-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/acpi: remove redundant acpi/acpi_drivers.h include
  xen: arm: mandate EABI and use generic atomic operations.
  acpi: Export the acpi_processor_get_performance_info
  xen/pciback: Don't disable a PCI device that is already disabled.
2013-03-12 20:25:53 -07:00
Johan Hovold 2d798a3f20 ARM: w1-gpio: fix erroneous gpio requests
Fix regression introduced by commit d2323cf773 ("onewire: w1-gpio: add
ext_pullup_enable pin in platform data") which added a gpio entry to the
platform data, but did not add the required initialisers to the board
files using it. Consequently, the driver would request gpio 0 at probe,
which could break other uses of the corresponding pin.

On AT91 requesting gpio 0 changes the pin muxing for PIOA0, which, for
instance, breaks SPI0 on at91sam9g20.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-12 16:20:45 -07:00
Anton Blanchard 1674400aae powerpc: Fix -mcmodel=medium breakage in prom_init.c
Commit 5ac47f7a6e (powerpc: Relocate prom_init.c on 64bit) made
prom_init.c position independent by manually relocating its entries
in the TOC.

We get the address of the TOC entries with the __prom_init_toc_start
linker symbol. If __prom_init_toc_start ends up as an entry in the
TOC then we need to add an offset to get the current address. This is
the case for older toolchains.

On the other hand, if we have a newer toolchain that supports
-mcmodel=medium then __prom_init_toc_start will be created by a
relative offset from r2 (the TOC pointer). Since r2 has already been
relocated, nothing more needs to be done.  Adding an offset in this
case is wrong and Aaro Koskinen and Alexander Graf have noticed noticed
G5 and OpenBIOS breakage.

Alan Modra suggested we just use r2 to get at the TOC which is simpler
and works with both old and new toolchains.

Reported-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-13 10:06:52 +11:00
Paul Bolle ff2d7587c7 powerpc: Remove last traces of POWER4_ONLY
The Kconfig symbol POWER4_ONLY got removed in commit
694caf0255 ("powerpc: Remove
CONFIG_POWER4_ONLY"). Remove its last traces.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-13 10:06:49 +11:00
Benjamin Herrenschmidt d63ac5f6cf powerpc: Fix cputable entry for 970MP rev 1.0
Commit 44ae3ab335 forgot to update
the entry for the 970MP rev 1.0 processor when moving some CPU
features bits to the MMU feature bit mask. This breaks booting
on some rare G5 models using that chip revision.

Reported-by: Phileas Fogg <phileas-fogg@mail.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.0+]
2013-03-13 10:06:46 +11:00
Benjamin Herrenschmidt 13938117a5 powerpc: Fix STAB initialization
Commit f5339277eb accidentally removed
more than just iSeries bits and took out the call to stab_initialize()
thus breaking support for POWER3 processors.

Put it back. (Yes, nobody noticed until now ...)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.4+]
2013-03-13 10:06:22 +11:00
Stephen Rothwell 4febd95a8a Select VIRT_TO_BUS directly where needed
In commit 887cbce0ad ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS")
I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where
needed.  I am not sure what I was thinking.  Instead, just directly
select VIRT_TO_BUS where it is needed.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-12 11:16:40 -07:00
Ralf Baechle f4cdb6a00c MIPS: SEAD3: Enable LL/SC.
All synthesizable CPU cores that could be loaded into a SEAD3's FPGA are
MIPS32 or MIPS64 CPUs that have ll/sc.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 18:58:09 +01:00
Paul Bolle 631b0af98c MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
Commit f7ade3c168 ("MIPS: Get rid of
CONFIG_CPU_HAS_LLSC") did what it promised to do. But since then that
macro and its Kconfig symbol popped up again. Get rid of those again.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4978/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 18:58:02 +01:00
Ben Hutchings 383c97b458 MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
The MIPS implementation of transparent huge-pages (THP) is 64-bit only,
and of course also requires that the CPU supports huge-pages.

Currently it's entirely possible to enable THP in other configurations,
which then fail to build due to pfn_pmd() not being defined.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: linux-mips@linux-mips.org
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/4972/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 18:57:57 +01:00
Yoichi Yuasa 9f91e5064c MIPS: VR4133: Fix probe for LL/SC.
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4963/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 18:57:52 +01:00
David Daney 0c81157b46 MIPS: Fix logic errors in bitops.c
commit 92d11594f6 (MIPS: Remove irqflags.h dependency from bitops.h)
factored some of the bitops code out into a separate file
(arch/mips/lib/bitops.c).  Unfortunately the logic converting a bit
mask into a boolean result was lost in some of the functions.  We had:

   int res;
   unsigned long shifted_result_bit;
   .
   .
   .
   res = shifted_result_bit;
   return res;

Which truncates off the high 32 bits (thus yielding an incorrect
value) on 64-bit systems.

The manifestation of this is that a non-SMP 64-bit kernel will not
boot as the bitmap operations in bootmem.c are all screwed up.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc:  linux-mips@linux-mips.org
Cc: Jim Quinlan <jim2101024@gmail.com>
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4965/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 18:57:47 +01:00
Linus Torvalds 6d9431a749 arm-soc fixes for 3.9-rc2
These bug fixes are for the largest part for mvebu/kirkwood, which
 saw a few regressions after the clock infrastructure was enabled,
 and for OMAP, which showed a few more preexisting bugs with
 the new multiplatform support.
 
 Other small fixes are for imx, mxs, tegra, spear and socfpga.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "These bug fixes are for the largest part for mvebu/kirkwood, which saw
  a few regressions after the clock infrastructure was enabled, and for
  OMAP, which showed a few more preexisting bugs with the new
  multiplatform support.

  Other small fixes are for imx, mxs, tegra, spear and socfpga"

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
  ARM: spear3xx: Use correct pl080 header file
  Arm: socfpga: pl330: Add #dma-cells for generic dma binding support
  ARM: multiplatform: Sort the max gpio numbers.
  ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
  ARM: imx: pll1_sys should be an initial on clk
  arm: mach-orion5x: fix typo in compatible string of a .dts file
  arm: mvebu: fix address-cells in mpic DT node
  arm: plat-orion: fix address decoding when > 4GB is used
  arm: mvebu: Reduce reg-io-width with UARTs
  ARM: Dove: add RTC device node
  arm: mvebu: enable the USB ports on Armada 370 Reference Design board
  ARM: dove: drop "select COMMON_CLK_DOVE"
  rtc: rtc-mv: Add support for clk to avoid lockups
  gpio: mvebu: Add clk support to prevent lockup
  ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
  ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
  ARM: mxs: cfa10049: Fix fb initialisation function
  ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
  ARM: OMAP: RX-51: add missing USB phy binding
  clk: Tegra: Remove duplicate smp_twd clock
  ...
2013-03-12 10:21:38 -07:00
Linus Torvalds 4388817f70 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu fixes from Greg Ungerer:
 "It contains a few small fixes for the non-MMU m68k platforms.  Fixes
  some compilation problems, some broken header definitions, removes an
  unused config option and adds a name for the old 68000 CPU support."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: drop "select EMAC_INC"
  m68knommu: fix misnamed GPIO pin definition for ColdFire 528x CPU
  m68knommu: fix MC68328.h defines
  m68knommu: fix build when CPU is not coldfire
  m68knommu: add CPU_NAME for 68000
2013-03-12 10:20:15 -07:00
Chen Gang 45549a68a5 ARM:net: an issue for k which is u32, never < 0
k is u32 which never < 0, need type cast, or cause issue.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Mircea Gherzan <mgherzan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-12 11:33:05 -04:00
Arnd Bergmann 7b59496c11 This patch fixes a boot breakage on DA830
that was introduced with EDMA DMA engine
 conversion. The bug has been there since
 v3.7 and has been marked for stable update.
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Merge tag 'davinci-for-v3.9-rc/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

Via Sekhar Nori <nsekhar@ti.com>:

This patch fixes a boot breakage on DA830
that was introduced with EDMA DMA engine
conversion. The bug has been there since
v3.7 and has been marked for stable update.

* tag 'davinci-for-v3.9-rc/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-12 15:04:06 +01:00
Nicolas Pitre 418df63ada ARM: 7670/1: fix the memset fix
Commit 455bd4c430 ("ARM: 7668/1: fix memset-related crashes caused by
recent GCC (4.7.2) optimizations") attempted to fix a compliance issue
with the memset return value.  However the memset itself became broken
by that patch for misaligned pointers.

This fixes the above by branching over the entry code from the
misaligned fixup code to avoid reloading the original pointer.

Also, because the function entry alignment is wrong in the Thumb mode
compilation, that fixup code is moved to the end.

While at it, the entry instructions are slightly reworked to help dual
issue pipelines.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-03-12 12:18:47 +00:00
Matt Porter 069552777a ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
This adds additional error checking to the private edma api implementation
to catch the case where the edma_alloc_slot() has an invalid controller
parameter. The edma dmaengine wrapper driver relies on this condition
being handled in order to avoid setting up a second edma dmaengine
instance on DA830.

Verfied using a DA850 with the second EDMA controller platform instance
removed to simulate a DA830 which only has a single EDMA controller.

Reported-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Matt Porter <mporter@ti.com>
Cc: stable@vger.kernel.org # v3.7.x+
Tested-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-03-12 17:10:46 +05:30
Arnd Bergmann 27f423fe12 ARM: spear3xx: Use correct pl080 header file
The definitions have move around recently, causing build errors
in spear3xx for all configurations:

spear3xx.c:47:5: error: 'PL080_BSIZE_16' undeclared here (not in a function)
spear3xx.c:47:23: error: 'PL080_CONTROL_SB_SIZE_SHIFT' undeclared here (not in a function)
spear3xx.c:48:22: error: 'PL080_CONTROL_DB_SIZE_SHIFT' undeclared here (not in a function)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alessandro Rubini <rubini@gnudd.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
2013-03-12 10:56:32 +01:00
Gabor Juhos e744109fce MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
The csum_partial implementation contain optimalizations for the MIPS R2
instruction set. This optimization is never enabled however because the
if directive uses the CPU_MIPSR2 constant which is not defined anywhere.

Use the CONFIG_CPU_MIPSR2 constant instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4971/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-12 10:18:18 +01:00
Arnd Bergmann d52701d39e mfd: ab8500: Kill "reg" property from binding
The ab8500 device is a child of the prcmu device, which is a memory mapped
bus device, whose children are addressable using physical memory addresses,
not using mailboxes, so a mailbox number in the ab8500 node cannot be
parsed by DT. Nothing uses this number, since it was only introduced
as part of the failed attempt to clean up prcmu mailbox handling, and
we can simply remove it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-12 09:39:01 +01:00
Padmavathi Venna 0d8abbfd96 Arm: socfpga: pl330: Add #dma-cells for generic dma binding support
This patch adds #dma-cells property to PL330 DMA controller nodes for
supporting generic dma dt bindings on SOCFPGA platform. #dma-channels
and #dma-requests are not required now but added in advance.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-11 22:01:57 +01:00
Arnd Bergmann 7546152348 mvebu fixes for v3.9
The first four patches:
 
   89c58c1 rtc: rtc-mv: Add support for clk to avoid lockups
   de88747 gpio: mvebu: Add clk support to prevent lockup
   7bf5b40 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
   93fff4c ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
 
 are Cc'd to stable since they were held over from the previous merge window.
 
 The rest are a small collection of fixes and a couple of devicetree conversion
 catchups.
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Merge tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux into fixes

mvebu fixes for v3.9 from Jason Cooper <jason@lakedaemon.net>:

The first four patches:

  89c58c1 rtc: rtc-mv: Add support for clk to avoid lockups
  de88747 gpio: mvebu: Add clk support to prevent lockup
  7bf5b40 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
  93fff4c ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency

are Cc'd to stable since they were held over from the previous merge window.

The rest are a small collection of fixes and a couple of devicetree conversion
catchups.

* tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux:
  arm: mach-orion5x: fix typo in compatible string of a .dts file
  arm: mvebu: fix address-cells in mpic DT node
  arm: plat-orion: fix address decoding when > 4GB is used
  arm: mvebu: Reduce reg-io-width with UARTs
  ARM: Dove: add RTC device node
  arm: mvebu: enable the USB ports on Armada 370 Reference Design board
  ARM: dove: drop "select COMMON_CLK_DOVE"
  rtc: rtc-mv: Add support for clk to avoid lockups
  gpio: mvebu: Add clk support to prevent lockup
  ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
  ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-11 21:55:40 +01:00
Arnd Bergmann 769aca03c4 The 2nd take of imx fixes for 3.9:
- Fix pll1_sys clk initial status
  - Fix a typo in imx DEBUG_LL Kconfig
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Merge tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo <shawn.guo@linaro.org>:

The 2nd take of imx fixes for 3.9:
 - Fix pll1_sys clk initial status
 - Fix a typo in imx DEBUG_LL Kconfig

* tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
  ARM: imx: pll1_sys should be an initial on clk

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-11 21:53:35 +01:00
Arnd Bergmann fc77b0e957 The 2nd mxs fixes for 3.9:
- Fix an error caused by incorrect conflict resolution when
    applying the patch
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Merge tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo <shawn.guo@linaro.org>:

The 2nd mxs fixes for 3.9:
 - Fix an error caused by incorrect conflict resolution when
   applying the patch

* tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: cfa10049: Fix fb initialisation function

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-11 21:52:57 +01:00
Maxime Ripard 2a6ad871a1 ARM: multiplatform: Sort the max gpio numbers.
When building a multiplatform kernel, we could end up with a smaller
number of GPIOs than the one required by the platform the kernel was
running on.

Sort the max GPIO number by descending order so that we always take the
highest number required.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-11 21:49:46 +01:00
Ian Campbell 85323a991d xen: arm: mandate EABI and use generic atomic operations.
Rob Herring has observed that c81611c4e9 "xen: event channel arrays are
xen_ulong_t and not unsigned long" introduced a compile failure when building
without CONFIG_AEABI:

/tmp/ccJaIZOW.s: Assembler messages:
/tmp/ccJaIZOW.s:831: Error: even register required -- `ldrexd r5,r6,[r4]'

Will Deacon pointed out that this is because OABI does not require even base
registers for 64-bit values. We can avoid this by simply using the existing
atomic64_xchg operation and the same containerof trick as used by the cmpxchg
macros. However since this code is used on memory which is shared with the
hypervisor we require proper atomic instructions and cannot use the generic
atomic64 callbacks (which are based on spinlocks), therefore add a dependency
on !GENERIC_ATOMIC64. Since we already depend on !CPU_V6 there isn't much
downside to this.

While thinking about this we also observed that OABI has different struct
alignment requirements to EABI, which is a problem for hypercall argument
structs which are shared with the hypervisor and which must be in EABI layout.
Since I don't expect people to want to run OABI kernels on Xen depend on
CONFIG_AEABI explicitly too (although it also happens to be enforced by the
!GENERIC_ATOMIC64 requirement too).

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Rob Herring <robherring2@gmail.com>
Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-03-11 13:52:19 -04:00
Ralf Baechle 63981a4096 MIPS: compat: Return same error ENOSYS as native for invalid operation.
The pains for multiplexed syscalls.

Noticed by Al Viro <viro@zeniv.linux.org.uk>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-03-11 16:34:50 +01:00
Linus Torvalds 7c6baa304b Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc minor fixes mostly related to tracing"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  s390: Fix a header dependencies related build error
  tracing: update documentation of snapshot utility
  tracing: Do not return EINVAL in snapshot when not allocated
  tracing: Add help of snapshot feature when snapshot is empty
  ftrace: Update the kconfig for DYNAMIC_FTRACE
2013-03-11 07:54:29 -07:00
Vineet Gupta 180d406e49 ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
When switching to clone() only ABI - I missed out pruning the low level
asm syscall wrappers

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-11 19:01:10 +05:30
Vineet Gupta 8ff14bbc6a ARC: ABIv3: Print the correct ABI ver
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-11 19:01:09 +05:30
Vineet Gupta 1540c85b17 ARC: make allyesconfig build breakages
CC      drivers/mmc/host/mmc_spi.o
drivers/mmc/host/mmc_spi.c:118: error: redefinition of 'struct scratch'
make[3]: *** [drivers/mmc/host/mmc_spi.o] Error 1
make[2]: *** [drivers/mmc/host] Error 2
make[1]: *** [drivers/mmc] Error 2
make: *** [drivers] Error 2

  CC      arch/arc/kernel/kgdb.o
In file included from include/linux/kgdb.h:20,
                 from arch/arc/kernel/kgdb.c:11:
/home/vineetg/arc/k.org/arc-port/arch/arc/include/asm/kgdb.h:34:
warning: 'struct pt_regs' declared inside parameter list
/home/vineetg/arc/k.org/arc-port/arch/arc/include/asm/kgdb.h:34:
warning: its scope is only this definition or declaration, which is
probably not what you want
arch/arc/kernel/kgdb.c:172: error: conflicting types for 'kgdb_trap'

  CC      arch/arc/kernel/kgdb.o
arch/arc/kernel/kgdb.c: In function 'pt_regs_to_gdb_regs':
arch/arc/kernel/kgdb.c:62: error: dereferencing pointer to incomplete
type

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-11 19:01:09 +05:30
Paul Bolle 0c52db7e68 ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
Commit f8c95fe (ARM: imx: support DEBUG_LL uart port selection for all
i.MX SoCs) had a typo that DEBUG_IMX50_IMX53_UART should be
DEBUG_IMX53_UART.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-11 21:28:18 +08:00
Allen Pais 76950e6e54 sparc64: correctly recognize SPARC64-X chips
The following patch adds support for correctly
recognizing SPARC-X chips.

cpu : Unknown SUN4V CPU
fpu : Unknown SUN4V FPU
pmu : Unknown SUN4V PMU

Signed-off-by: Katayama Yoshihiro <kata1@jp.fujitsu.com>
Signed-off-by: Allen Pais <allen.pais@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-11 05:06:27 -07:00
Li Zefan cb16b91a44 s390: Fix a header dependencies related build error
Commit 877c685607
("perf: Remove include of cgroup.h from perf_event.h") caused
this build failure if PERF_EVENTS is enabled:

   In file included from arch/s390/include/asm/perf_event.h:9:0,
                    from include/linux/perf_event.h:24,
                    from kernel/events/ring_buffer.c:12:
   arch/s390/include/asm/cpu_mf.h: In function 'qctri':
   arch/s390/include/asm/cpu_mf.h:61:12: error: 'EINVAL' undeclared (first use in this function)

cpu_mf.h had an implicit errno.h dependency, which was added
indirectly via cgroups.h but not anymore. Add it explicitly.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Link: http://lkml.kernel.org/r/51385F79.7000106@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-11 10:43:35 +01:00
Richard Weinberger 2116bda6ad um: Use tty_port in SIGWINCH handler
The tty below tty_port might get destroyed by the tty layer
while we hold a reference to it.
So we have to carry tty_port around...

Signed-off-by: Richard Weinberger <richard@nod.at>
2013-03-11 10:08:04 +01:00
Richard Weinberger cc4f02486c um: Use tty_port_operations->destruct
As we setup the SIGWINCH handler in tty_port_operations->activate
it makes sense to tear down it in ->destruct.

Signed-off-by: Richard Weinberger <richard@nod.at>
2013-03-11 10:08:03 +01:00
Sergei Trofimovich 72383d43b2 um: fix build failure due to mess-up of sig_info protorype
arch/um/os-Linux/signal.c:18:8: error: conflicting types for 'sig_info'
In file included from /home/slyfox/linux-2.6/arch/um/os-Linux/signal.c:12:0:
arch/um/include/shared/as-layout.h:64:15: note: previous declaration of 'sig_info' was here

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
CC: Jeff Dike <jdike@addtoit.com>
CC: Richard Weinberger <richard@nod.at>
CC: "Martin Pärtel" <martin.partel@gmail.com>
CC: Al Viro <viro@zeniv.linux.org.uk>
CC: user-mode-linux-devel@lists.sourceforge.net
CC: user-mode-linux-user@lists.sourceforge.net
CC: linux-kernel@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-03-11 10:08:03 +01:00
Sergei Trofimovich fdfa4c9528 um: add missing declaration of 'getrlimit()' and friends
arch/um/os-Linux/start_up.c: In function 'check_coredump_limit':
arch/um/os-Linux/start_up.c:338:16: error: storage size of 'lim' isn't known
arch/um/os-Linux/start_up.c:339:2: error: implicit declaration of function 'getrlimit' [-Werror=implicit-function-declaration]

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
CC: Jeff Dike <jdike@addtoit.com>
CC: Richard Weinberger <richard@nod.at>
CC: Al Viro <viro@zeniv.linux.org.uk>
CC: user-mode-linux-devel@lists.sourceforge.net
CC: user-mode-linux-user@lists.sourceforge.net
CC: linux-kernel@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-03-11 10:08:03 +01:00
Paul Chavent 55ea1cfab2 net : enable tx time stamping in the vde driver.
This new version moves the skb_tx_timestamp in the main uml
driver. This should avoid the need to call this function in each
transport (vde, slirp, tuntap, ...). It also add support for ethtool
get_ts_info.

Signed-off-by: Paul Chavent <paul.chavent@onera.fr>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2013-03-11 10:08:02 +01:00
Shawn Guo 395816623d ARM: imx: pll1_sys should be an initial on clk
We always boot from PLL1, so let's have pll1_sys in the clks_init_on
list to have clk prepare/enable use count match the hardware status,
so that drivers managing pll1_sys like cpufreq can get the use count
right from the start.

Reported-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-11 10:44:40 +08:00
Linus Torvalds 72932611b4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace bugfixes from Eric Biederman:
 "This is three simple fixes against 3.9-rc1.  I have tested each of
  these fixes and verified they work correctly.

  The userns oops in key_change_session_keyring and the BUG_ON triggered
  by proc_ns_follow_link were found by Dave Jones.

  I am including the enhancement for mount to only trigger requests of
  filesystem modules here instead of delaying this for the 3.10 merge
  window because it is both trivial and the kind of change that tends to
  bit-rot if left untouched for two months."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  proc: Use nd_jump_link in proc_ns_follow_link
  fs: Limit sys_mount to only request filesystem modules (Part 2).
  fs: Limit sys_mount to only request filesystem modules.
  userns: Stop oopsing in key_change_session_keyring
2013-03-09 16:51:13 -08:00
Linus Torvalds 59d8e5eb2b Merge branch 'akpm' (fixes from Andrew)
Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  alpha: boot: fix build breakage introduced by system.h disintegration
  memcg: initialize kmem-cache destroying work earlier
  Randy has moved
  ksm: fix m68k build: only NUMA needs pfn_to_nid
  dmi_scan: fix missing check for _DMI_ signature in smbios_present()
  Revert parts of "hlist: drop the node parameter from iterators"
  idr: remove WARN_ON_ONCE() on negative IDs
  mm/mempolicy.c: fix sp_node_init() argument ordering
  mm/mempolicy.c: fix wrong sp_node insertion
  ipc: don't allocate a copy larger than max
  ipc: fix potential oops when src msg > 4k w/ MSG_COPY
2013-03-08 15:05:42 -08:00
Will Deacon c3d6b62839 alpha: boot: fix build breakage introduced by system.h disintegration
Commit ec2212088c ("Disintegrate asm/system.h for Alpha") removed the
system.h include from boot/head.S, which puts the PAL_* asm constants
out of scope.

Include <asm/pal.h> so we can get building again.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: David Rusling <david.rusling@linaro.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-08 15:05:34 -08:00
Linus Torvalds c4c5ff0987 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull tile architecture fixes from Chris Metcalf:
 "This fixes the bug that Al Viro spotted with the compat llseek code.
  I also fixed the compat syscall definitions to use the new syscall
  define macros to properly sign-extend their arguments."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: properly use COMPAT_SYSCALL_DEFINEx
  tile: work around bug in the generic sys_llseek
2013-03-08 14:46:04 -08:00
Linus Torvalds 92e840b84e A couple of fairly minor arch/metag integration fixes from v3.9-rc1:
- remove SET_PERSONALITY(): use default definition like other arches
    now do.
 
  - inhibit NUMA balancing: like SH, NUMA is used for memories with
    different latencies. ARCH_WANT_VARIABLE_LOCALITY has been added for
    this purpose.
 
 Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Merge tag 'metag-for-v3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull metag bugfixes from James Hogan:
 "A couple of fairly minor arch/metag integration fixes from v3.9-rc1:

   - remove SET_PERSONALITY(): use default definition like other arches
     now do.

   - inhibit NUMA balancing: like SH, NUMA is used for memories with
     different latencies.  ARCH_WANT_VARIABLE_LOCALITY has been added
     for this purpose."

* tag 'metag-for-v3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: Inhibit NUMA balancing.
  metag: remove SET_PERSONALITY()
2013-03-08 14:45:17 -08:00
Thomas Petazzoni b2d57222b0 arm: mach-orion5x: fix typo in compatible string of a .dts file
The orion5x-lacie-ethernet-disk-mini-v2.dts file was using
"marvell-orion5x-88f5182" as a compatible string, while it should have
been "marvell,orion5x-88f5182".

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:19:42 +00:00
Thomas Petazzoni 1b72b78fda arm: mvebu: fix address-cells in mpic DT node
There is no need to have a #address-cells property in the MPIC Device
Tree node, and more than that, having it confuses the of_irq_map_raw()
logic, which will be used by the Marvell PCIe driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:15:54 +00:00
Thomas Petazzoni 217bef3d37 arm: plat-orion: fix address decoding when > 4GB is used
During the system initialization, the orion_setup_cpu_mbus_target()
function reads the SDRAM address decoding registers to find out how
many chip-selects of SDRAM have been enabled, and builds a small array
with one entry per chip-select. This array is then used by device
drivers (XOR, Ethernet, etc.) to configure their own address decoding
windows to the SDRAM.

However, devices can only access the first 32 bits of the physical
memory. Even though LPAE is not supported for now, some Marvell boards
are now showing up with 8 GB of RAM, configured using two SDRAM
address decoding windows: the first covering the first 4 GB, the
second covering the last 4 GB. The array built by
orion_setup_cpu_mbus_target() has therefore two entries, and device
drivers try to set up two address decoding windows to the
SDRAM. However, in the device registers for the address decoding, the
base address is only 32 bits, so those two windows overlap each other,
and the devices do not work at all.

This patch makes sure that the array built by
orion_setup_cpu_mbus_target() only contains the SDRAM decoding windows
that correspond to the first 4 GB of the memory. To do that, it
ignores the SDRAM decoding windows for which the 4 low-order bits are
not zero (the 4 low-order bits of the base register are used to store
bits 32:35 of the base address, so they actually indicate whether the
base address is above 4 GB).

This patch allows the newly introduced armada-xp-gp board to properly
operate when it is mounted with more than 4 GB of RAM. Without that,
all devices doing DMA (for example XOR and Ethernet) do not work at
all.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:07:19 +00:00
Heikki Krogerus e366154f70 arm: mvebu: Reduce reg-io-width with UARTs
Setting the reg-io-width to 1 byte represents more accurate
description of the HW.

This will fix an issue where UART driver causes kernel
panic during bootup. Gregory CLEMENT traced the issue to
autoconfig() in 8250.c, where the existence of FIFO is
checked from UART_IIR register. The register is now read as
32-bit value as the reg-io-width is set to 4-bytes. The
retuned value seems to contain bogus data for bits 31:8,
causing the issue.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 22:03:44 +00:00
Jean-Francois Moine 85c0c13dcd ARM: Dove: add RTC device node
The commit:

  48be9ac ARM: Dove: split legacy and DT setup

removed the RTC initialization.  This patch re-enables the RTC
via the DT.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:53:33 +00:00
Florian Fainelli e822f75d84 arm: mvebu: enable the USB ports on Armada 370 Reference Design board
This patch modifies the Armada 370 Reference Design DTS file to enable
support for the two USB ports found on this board.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:44:30 +00:00
Paul Bolle f3ae1ae901 ARM: dove: drop "select COMMON_CLK_DOVE"
Commit 5b03df9ace ("ARM: dove: switch to
DT clock providers") added "select COMMON_CLK_DOVE" to Marvell Dove's
Kconfig entry. But there's no Kconfig symbol COMMON_CLK_DOVE, which
makes this select statement a nop. It's probably a leftover of some
experimental code that never hit mainline. Drop it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:49 +00:00
Andrew Lunn 89c58c198b rtc: rtc-mv: Add support for clk to avoid lockups
The Marvell RTC on Kirkwood makes use of the runit clock. Ensure the
driver clk_prepare_enable() this clock, otherwise there is a danger
the SoC will lockup when accessing RTC registers with the clock
disabled.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:41 +00:00
Andrew Lunn de88747f51 gpio: mvebu: Add clk support to prevent lockup
The kirkwood SoC GPIO cores use the runit clock. Add code to
clk_prepare_enable() runit, otherwise there is a danger of locking up
the SoC by accessing the GPIO registers when runit clock is not
ticking.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:34 +00:00
Sebastian Hesselbarth 7bf5b408b4 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
The ethernet controller used on kirkwood looses its MAC address
register contents when the corresponding clock is gated. As soon as
mv643xx_eth is built as module, the clock gets gated and when loading
the module, the MAC address is gone.

Proper DT support for the mv643xx_eth driver is expected soon, so we add
a workaround to always enable ge0/ge1 clocks on kirkwood. This workaround
is also already used on non-DT kirkwood kernels.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:34:16 +00:00
Jason Cooper 93fff4ce19 ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
When DT support for kirkwood was first introduced, there was no clock
infrastructure.  As a result, we had to manually pass the
clock-frequency to the driver from the device node.

Unfortunately, on kirkwood, with minimal config or all module configs,
clock-frequency breaks booting because of_serial doesn't consume the
gate_clk when clock-frequency is defined.

The end result on kirkwood is that runit gets gated, and then the boot
fails when the kernel tries to write to the serial port.

Fix the issue by removing the clock-frequency parameter from all
kirkwood dts files.

Booted on dreamplug without earlyprintk and successfully logged in via
ttyS0.

Reported-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-08 21:32:52 +00:00
Simon Horman 44e9ac4575 ARM: shmobile: marzen: Include mmc/host.h
mmc/host.h provides MMC_CAP_SD_HIGHSPEED which is used in board-marzen.c

This resolves a build problem observed when compiling with
"mmc: tmio: remove unused and deprecated symbols" applied.

Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-08 16:29:23 +01:00
Linus Torvalds 47b3bc9073 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "Several boot fixes (MacBook, legacy EFI bootloaders), another
  please-don't-brick fix, and some minor stuff."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Do not try to sync identity map for non-mapped pages
  x86, doc: Be explicit about what the x86 struct boot_params requires
  x86: Don't clear efi_info even if the sentinel hits
  x86, mm: Make sure to find a 2M free block for the first mapped area
  x86: Fix 32-bit *_cpu_data initializers
  efivarfs: return accurate error code in efivarfs_fill_super()
  efivars: efivarfs_valid_name() should handle pstore syntax
  efi: be more paranoid about available space when creating variables
  iommu, x86: Add DMA remap fault reason
  x86, smpboot: Remove unused variable
2013-03-07 15:57:38 -08:00
Linus Torvalds 19cf3edbf3 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Mainly a group of fixes, the only exception is the wiring up of the
  kcmp syscall now that those patches went in during the last merge
  window."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) optimizations
  ARM: 7667/1: perf: Fix section mismatch on armpmu_init()
  ARM: 7666/1: decompressor: add -mno-single-pic-base for building the decompressor
  ARM: 7665/1: Wire up kcmp syscall
  ARM: 7664/1: perf: remove erroneous semicolon from event initialisation
  ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit
  ARM: 7662/1: hw_breakpoint: reset debug logic on secondary CPUs in s2ram resume
  ARM: 7661/1: mm: perform explicit branch predictor maintenance when required
  ARM: 7660/1: tlb: add branch predictor maintenance operations
  ARM: 7659/1: mm: make mm->context.id an atomic64_t variable
  ARM: 7658/1: mm: fix race updating mm->context.id on ASID rollover
  ARM: 7657/1: head: fix swapper and idmap population with LPAE and big-endian
  ARM: 7655/1: smp_twd: make twd_local_timer_of_register() no-op for nosmp
  ARM: 7652/1: mm: fix missing use of 'asid' to get asid value from mm->context.id
  ARM: 7642/1: netx: bump IRQ offset to 64
2013-03-07 13:47:18 -08:00
Dave Hansen 60f583d56a x86: Do not try to sync identity map for non-mapped pages
kernel_map_sync_memtype() is called from a variety of contexts.  The
pat.c code that calls it seems to ensure that it is not called for
non-ram areas by checking via pat_pagerange_is_ram().  It is important
that it only be called on the actual identity map because there *IS*
no map to sync for highmem pages, or for memory holes.

The ioremap.c uses are not as careful as those from pat.c, and call
kernel_map_sync_memtype() on PCI space which is in the middle of the
kernel identity map _range_, but is not actually mapped.

This patch adds a check to kernel_map_sync_memtype() which probably
duplicates some of the checks already in pat.c.  But, it is necessary
for the ioremap.c uses and shouldn't hurt other callers.

I have reproduced this bug and this patch fixes it for me and the
original bug reporter:

	https://lkml.org/lkml/2013/2/5/396

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20130307163151.D9B58C4E@kernel.stglabs.ibm.com
Signed-off-by: Dave Hansen <dave@sr71.net>
Tested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-07 13:23:28 -08:00
Ivan Djelic 455bd4c430 ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) optimizations
Recent GCC versions (e.g. GCC-4.7.2) perform optimizations based on
assumptions about the implementation of memset and similar functions.
The current ARM optimized memset code does not return the value of
its first argument, as is usually expected from standard implementations.

For instance in the following function:

void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
{
	memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
	waiter->magic = waiter;
	INIT_LIST_HEAD(&waiter->list);
}

compiled as:

800554d0 <debug_mutex_lock_common>:
800554d0:       e92d4008        push    {r3, lr}
800554d4:       e1a00001        mov     r0, r1
800554d8:       e3a02010        mov     r2, #16 ; 0x10
800554dc:       e3a01011        mov     r1, #17 ; 0x11
800554e0:       eb04426e        bl      80165ea0 <memset>
800554e4:       e1a03000        mov     r3, r0
800554e8:       e583000c        str     r0, [r3, #12]
800554ec:       e5830000        str     r0, [r3]
800554f0:       e5830004        str     r0, [r3, #4]
800554f4:       e8bd8008        pop     {r3, pc}

GCC assumes memset returns the value of pointer 'waiter' in register r0; causing
register/memory corruptions.

This patch fixes the return value of the assembly version of memset.
It adds a 'mov' instruction and merges an additional load+store into
existing load/store instructions.
For ease of review, here is a breakdown of the patch into 4 simple steps:

Step 1
======
Perform the following substitutions:
ip -> r8, then
r0 -> ip,
and insert 'mov ip, r0' as the first statement of the function.
At this point, we have a memset() implementation returning the proper result,
but corrupting r8 on some paths (the ones that were using ip).

Step 2
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 1:

save r8:
-       str     lr, [sp, #-4]!
+       stmfd   sp!, {r8, lr}

and restore r8 on both exit paths:
-       ldmeqfd sp!, {pc}               @ Now <64 bytes to go.
+       ldmeqfd sp!, {r8, pc}           @ Now <64 bytes to go.
(...)
        tst     r2, #16
        stmneia ip!, {r1, r3, r8, lr}
-       ldr     lr, [sp], #4
+       ldmfd   sp!, {r8, lr}

Step 3
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 0:

save r8:
-       stmfd   sp!, {r4-r7, lr}
+       stmfd   sp!, {r4-r8, lr}

and restore r8 on both exit paths:
        bgt     3b
-       ldmeqfd sp!, {r4-r7, pc}
+       ldmeqfd sp!, {r4-r8, pc}
(...)
        tst     r2, #16
        stmneia ip!, {r4-r7}
-       ldmfd   sp!, {r4-r7, lr}
+       ldmfd   sp!, {r4-r8, lr}

Step 4
======
Rewrite register list "r4-r7, r8" as "r4-r8".

Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-03-07 16:14:22 +00:00
Sebastian Ott aebfa669d9 s390/scm: process availability
Let the bus code process scm availability information and
notify scm device drivers about the new state.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-07 09:52:24 +01:00
Sebastian Ott 4fa3c01964 s390/scm_blk: suspend writes
Stop writing to scm after certain error conditions such as a concurrent
firmware upgrade. Resume to normal state once scm_blk_set_available is
called (due to an scm availability notification).

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-07 09:52:23 +01:00
Sebastian Ott 93481c9020 s390/scm_drv: extend notify callback
Extend the notify callback of scm_driver by an event parameter
to allow to distinguish between different notifications.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-07 09:52:21 +01:00
Peter Jones 3c4aff6b9a x86, doc: Be explicit about what the x86 struct boot_params requires
If the sentinel triggers, we do not want the boot loader authors to
just poke it and make the error go away, we want them to actually fix
the problem.

This should help avoid making the incorrect change in non-compliant
bootloaders.

[ hpa: dropped the Documentation/x86/boot.txt hunk pending
  clarifications ]

Signed-off-by: Peter Jones <pjones@redhat.com>
Link: http://lkml.kernel.org/r/1362592823-28967-1-git-send-email-pjones@redhat.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-06 20:34:43 -08:00
Josh Boyer 2e604c0f19 x86: Don't clear efi_info even if the sentinel hits
When boot_params->sentinel is set, all we really know is that some
undefined set of fields in struct boot_params contain garbage.  In the
particular case of efi_info, however, there is a private magic for
that substructure, so it is generally safe to leave it even if the
bootloader is broken.

kexec (for which we did the initial analysis) did not initialize this
field, but of course all the EFI bootloaders do, and most EFI
bootloaders are broken in this respect (and should be fixed.)

Reported-by: Robin Holt <holt@sgi.com>
Link: http://lkml.kernel.org/r/CA%2B5PVA51-FT14p4CRYKbicykugVb=PiaEycdQ57CK2km_OQuRQ@mail.gmail.com
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-06 20:23:30 -08:00
Yinghai Lu 98e7a98997 x86, mm: Make sure to find a 2M free block for the first mapped area
Henrik reported that his MacAir 3.1 would not boot with

| commit 8d57470d8f
| Date:   Fri Nov 16 19:38:58 2012 -0800
|
|    x86, mm: setup page table in top-down

It turns out that we do not calculate the real_end properly:
We try to get 2M size with 4K alignment, and later will round down
to 2M, so we will get less then 2M for first mapping, in extreme
case could be only 4K only. In Henrik's system it has (1M-32K) as
last usable rage is [mem 0x7f9db000-0x7fef8fff].

The problem is exposed when EFI booting have several holes and it
will force mapping to use PTE instead as we only map usable areas.

To fix it, just make it be 2M aligned, so we can be guaranteed to be
able to use large pages to map it.

Reported-by: Henrik Rydberg <rydberg@euromail.se>
Bisected-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/CAE9FiQX4nQ7_1kg5RL_vh56rmcSHXUi1ExrZX7CwED4NGMnHfg@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-06 20:18:32 -08:00
Krzysztof Mazur 015221fefb x86: Fix 32-bit *_cpu_data initializers
The commit 27be457000
('x86 idle: remove 32-bit-only "no-hlt" parameter, hlt_works_ok
flag') removed the hlt_works_ok flag from struct cpuinfo_x86, but
boot_cpu_data and new_cpu_data initializers were not changed
causing setting f00f_bug flag, instead of fdiv_bug.

If CONFIG_X86_F00F_BUG is not set the f00f_bug flag is never
cleared.

To avoid such problems in future C99-style initialization is now
used.

Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: len.brown@intel.com
Link: http://lkml.kernel.org/r/1362266082-2227-1-git-send-email-krzysiek@podlesie.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2013-03-06 20:15:50 -08:00
Maxime Ripard 4a38a8502b ARM: mxs: cfa10049: Fix fb initialisation function
Commit 1fe42740 ("ARM: dts: mxs: Add the LCD to the 10049 board") seem
to have been applied with some fuzzyness, and the framebuffer
initialisation code for the CFA-10049 ended up in the CFA-10037
initialisation function.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-03-07 10:54:23 +08:00
Padmavathi Venna 0a96d4d369 ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
This patch adds #dma-cells property to PL330 DMA controller
nodes for supporting generic dma dt bindings on samsung exynos
platforms. #dma-channels and #dma-requests are not required now
but added in advance.

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-03-07 10:33:07 +09:00
Stephen Boyd 44d6b1fc3e ARM: 7667/1: perf: Fix section mismatch on armpmu_init()
WARNING: vmlinux.o(.text+0xfb80): Section mismatch in reference
from the function armpmu_register() to the function
.init.text:armpmu_init()
The function armpmu_register() references
the function __init armpmu_init().
This is often because armpmu_register lacks a __init
annotation or the annotation of armpmu_init is wrong.

Just drop the __init marking on armpmu_init() because
armpmu_register() no longer has an __init marking.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-03-06 23:45:43 +00:00
Jonathan Austin b8083f86e8 ARM: 7666/1: decompressor: add -mno-single-pic-base for building the decompressor
Before jumping to (position independent) C-code from the decompressor's
assembler world we set-up the C environment. This setup currently does not
set r9, which for arm-none-uclinux-uclibceabi toolchains is by default
expected to be the PIC offset base register (IE should point to the
beginning of the GOT).

Currently, therefore, in order to build working kernels that use the
decompressor it is necessary to use an arm-linux-gnueabi toolchain, or
similar. uClinux toolchains cause a prefetch abort to occur at the beginning
of the decompress_kernel function.

This patch allows uClinux toolchains to build bootable zImages by forcing
the -mno-single-pic-base option, which ensures that the location of the GOT
is re-derived each time it is required, and r9 becomes free for use as a
general purpose register.

This has a small (4% in instruction terms) advantage over the alternative of
setting r9 to point to the GOT before calling into the C-world.

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-03-06 23:45:42 +00:00
Paul Bolle ef9240f482 m68k: drop "select EMAC_INC"
Somehow this select statement managed to squeeze itself between commit
0e152d8050 ("m68k: reorganize Kconfig
options to improve mmu/non-mmu selections") and commit
95e82747d6 ("m68k: drop unused Kconfig
symbols"). Whatever happened, there is no Kconfig symbol named EMAC_INC.
The select statement for that symbol is a nop. Drop it.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2013-03-06 16:08:26 +10:00
Borislav Petkov 576cfb404c x86, smpboot: Remove unused variable
The cpuinfo_x86 ptr is unused now. Drop it. Got obsolete by 69fb3676df
("x86 idle: remove mwait_idle() and "idle=mwait" cmdline param")
removing its only user.

[ hpa: fixes gcc warning ]

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1362428180-8865-2-git-send-email-bp@alien8.de
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-03-05 15:26:45 -08:00
Paul Bolle 51c66cf969 ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
Do what commit f12a500e4a
("ARM: SPEAr13xx: Enable CONFIG_ARCH_HAS_CPUFREQ") wanted to do.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-03-05 23:30:24 +01:00
Arnd Bergmann f01c28794c Fix few regressions, omap3 pm init with device tree, and some
issues with the legacy mux code.
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Merge tag 'omap-for-v3.9-rc1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fix few regressions, omap3 pm init with device tree, and some
issues with the legacy mux code.

* tag 'omap-for-v3.9-rc1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: RX-51: add missing USB phy binding
  ARM: OMAP2+: Remove duplicate omap4430_init_late() declaration
  ARM: OMAP2+: mux: correct wrong error messages
  ARM: OMAP2+: mux: fix debugfs file permission
  ARM: OMAP2+: Fix unmet direct dependencies for zoom for 8250 serial
  ARM: OMAP3: board-generic: Add missing omap3_init_late
  ARM: OMAP2+: Fix broken gpmc support
  ARM: OMAP1: Fix build related to kgdb.h no longer including serial_8250.h
2013-03-05 23:22:00 +01:00
Aaro Koskinen b0ad0995e9 ARM: OMAP: RX-51: add missing USB phy binding
Commit 51482be9 (ARM: OMAP: USB: Add phy binding information) forgot to
add phy binding for RX-51, and as a result USB does not work anymore on
3.9-rc1. Add the missing binding.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-05 08:24:56 -08:00
Heiko Carstens f6a70a0707 s390/mm: fix flush_tlb_kernel_range()
Our flush_tlb_kernel_range() implementation calls __tlb_flush_mm() with
&init_mm as argument. __tlb_flush_mm() however will only flush tlbs
for the passed in mm if its mm_cpumask is not empty.

For the init_mm however its mm_cpumask has never any bits set. Which in
turn means that our flush_tlb_kernel_range() implementation doesn't
work at all.

This can be easily verified with a vmalloc/vfree loop which allocates
a page, writes to it and then frees the page again. A crash will follow
almost instantly.

To fix this remove the cpumask_empty() check in __tlb_flush_mm() since
there shouldn't be too many mms with a zero mm_cpumask, besides the
init_mm of course.

Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-05 10:21:36 +01:00
Heiko Carstens a7bb1ae749 s390/mm: fix vmemmap size calculation
The size of the vmemmap must be a multiple of PAGES_PER_SECTION, since the
common code always initializes the vmemmap in such pieces.
So we must round up in order to not have a too small vmemmap.

Fixes an IPL crash on 31 bit with more than 1920MB.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-05 10:21:35 +01:00
Martin Schwidefsky 6551fbdfd8 s390: critical section cleanup vs. machine checks
The current machine check code uses the registers stored by the machine
in the lowcore at __LC_GPREGS_SAVE_AREA as the registers of the interrupted
context. The registers 0-7 of a user process can get clobbered if a machine
checks interrupts the execution of a critical section in entry[64].S.

The reason is that the critical section cleanup code may need to modify
the PSW and the registers for the previous context to get to the end of a
critical section. If registers 0-7 have to be replaced the relevant copy
will be in the registers, which invalidates the copy in the lowcore. The
machine check handler needs to explicitly store registers 0-7 to the stack.

Cc: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-03-05 10:21:35 +01:00
Michael Neuling 54c9b2253d powerpc: Set DSCR bit in FSCR setup
We support DSCR (Data Stream Control Register) so we should make sure we set it
in the FSCR (Facility Status & Control Register) incase some firmwares don't
set it.  If we don't set this, we'll take a facility unavailable exception when
using the DSCR.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:30 +11:00
Michael Neuling fa759e9b09 powerpc: Add DSCR FSCR register bit definition
This sets the DSCR (Data Stream Control Register) in the FSCR (Facility Status
& Control Register).

Also harmonise TAR (Target Address Register) FSCR bit definition too.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:30 +11:00
Michael Neuling 57d231678a powerpc: Fix setting FSCR for HV=0 and on secondary CPUs
Currently we only set the FSCR (Facility Status and Control Register) when HV=1
but this feature is available when HV=0 also.  This patch sets FSCR when HV=0.

Also, we currently only set the FSCR on the master CPU.  This patch also sets
the FSCR on secondary CPUs.

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:29 +11:00
Tony Breeds 8170a83f15 powerpc: Wireup the kcmp syscall to sys_ni
Since kmp takes 2 unsigned long args there should be a compat wrapper.
Since one isn't provided I think it's safer just to hook this up to not
implemented.  If we need it later we can do it properly then.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:29 +11:00
Akinobu Mita a74f350b5c powerpc: Remove unused BITOP_LE_SWIZZLE macro
The BITOP_LE_SWIZZLE macro was used in the little-endian bitops functions
for powerpc.  But these functions were converted to generic bitops and
the BITOP_LE_SWIZZLE is not used anymore.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:28 +11:00
Michael Neuling 6a404806df powerpc: Avoid link stack corruption in MMU on syscall entry path
Currently we use the link register to branch up high in the early MMU on
syscall entry path.  Unfortunately, this trashes the link stack as the
address we are going to is not associated with the earlier mflr.

This patch simply converts us to used the count register (volatile over
syscalls anyway) instead.  This is much better at predicting in this
scenario and doesn't trash link stack causing a bunch of additional
branch mispredicts later.  Benchmarking this on POWER8 saves a bunch of
cycles on Anton's null syscall benchmark here:
   http://ozlabs.org/~anton/junkcode/null_syscall.c

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:28 +11:00
Chen Gang 6b6680c4ea powerpc/pseries/hvcserver: Fix strncpy buffer limit in location code
the dest buf len is 80 (HVCS_CLC_LENGTH + 1).
  the src buf len is PAGE_SIZE.
  if src buf string len is more than 80, it will cause issue.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:27 +11:00
Tony Breeds 27777890d0 powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit
When building with CRYPTO_SHA1_PPC enabled we fail with:

powerpc/crypto/sha1-powerpc-asm.S: Assembler messages:
powerpc/crypto/sha1-powerpc-asm.S:116: Error: can't resolve `0' {*ABS* section} - `STACKFRAMESIZE' {*UND* section}
powerpc/crypto/sha1-powerpc-asm.S:116: Error: expression too complex
powerpc/crypto/sha1-powerpc-asm.S:178: Error: unsupported relocation against STACKFRAMESIZE

Use INT_FRAME_SIZE instead of STACKFRAMESIZE.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-03-05 16:56:26 +11:00
Sylwester Nawrocki b83e831a3c ARM: S5PV210: Fix PL330 DMA controller clkdev entries
Since the DMA controller clocks are managed at amba bus level, the
PL330 device clocks handling has been removed from the driver in
commit 7c71b8eb("DMA: PL330: Remove redundant runtime_suspend/
resume functions")

However, this left the S5PV210 platform with only clkdev entries
linking "apb_pclk" clock conn_id to a dummy clock, rather than
to corresponding platform PL330 DMAC clock.
As a result the DMA controller is now attempted to be used on
S5PV210 with the clock disabled and the driver fails with an
error:

dma-pl330 dma-pl330.0: PERIPH_ID 0x0, PCELL_ID 0x0 !
dma-pl330: probe of dma-pl330.0 failed with error -22
dma-pl330 dma-pl330.1: PERIPH_ID 0x0, PCELL_ID 0x0 !
dma-pl330: probe of dma-pl330.1 failed with error -22

Fix this by adding "apb_pclk" clkdev entries for the Peripheral
DMA controllers 0/1 and removing the dummy apb_pclk clock.

Reported-by: Lonsn <lonsn2005@gmail.com>
Tested-by: Lonsn <lonsn2005@gmail.com>
Cc: Inderpal Singh <inderpal.singh@linaro.org>
Cc: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: <stable@vger.kernel.org> # v3.7+
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-03-05 11:08:47 +09:00
Olof Johansson 4246a9c968 The mxs fixes for 3.9:
- A few sparse warning fixes
  - Fix usb function regression caused by usb Kconfig option changes
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Merge tag 'mxs-fixes-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo:
The mxs fixes for 3.9:
 - A few sparse warning fixes
 - Fix usb function regression caused by usb Kconfig option changes

* tag 'mxs-fixes-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: ocotp: Fix sparse warning
  ARM: mxs: icoll: Fix sparse warning
  ARM: mxs: mm: Fix sparse warning
  ARM: mxs_defconfig: Make USB host functional again

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04 17:35:15 -08:00
Olof Johansson 260a8e507a The imx fixes for 3.9:
- move early resume code out of .data section to fix allyesconfig
    failure since c08e20d (arm: Add v7_invalidate_l1 to cache-v7.S)
    gets merged
  - Fix incorrect DISP1_DAT_21 number in imx53-mba53 disp1-grp1
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Merge tag 'imx-fixes-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo:
The imx fixes for 3.9:
 - move early resume code out of .data section to fix allyesconfig
   failure since c08e20d (arm: Add v7_invalidate_l1 to cache-v7.S)
   gets merged
 - Fix incorrect DISP1_DAT_21 number in imx53-mba53 disp1-grp1

* tag 'imx-fixes-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: dts: imx53-mba53: fix fsl,pins for disp1-grp1
  ARM: mach-imx: move early resume code out of the .data section

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04 17:35:01 -08:00
Prashant Gaikwad ed3ced3711 ARM: Tegra: Add clock entry for smp_twd clock
As DT support for clocks and smp_twd is enabled, add clock entry
for smp_twd clock to DT.

This fixes the following error while booting the kernel:
smp_twd: clock not found -2

Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
[swarren: include kernel log spew that this fixes]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04 17:16:36 -08:00
Nishanth Menon 9e25fe6b33 ARM: dts: remove generated .dtb files on clean
commit 5f300acd8a
(ARM: 7152/1: distclean: Remove generated .dtb files)
ensured that dtbs were cleaned up when they were in
arch/arm/boot.
However, with the following commit:
commit 499cd82986
(ARM: dt: change .dtb build rules to build in dts directory)

make clean now leaves dtbs in arch/arm/boot/dts/
untouched. Include dts directory so that clean-files rule
from arch/arm/boot/dts/Makefile is invoked when make
clean is done.

Cc: Dirk Behme <dirk.behme@de.bosch.com>
CC: Grant Likely <grant.likely@secretlab.ca>

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04 17:15:35 -08:00
Stephen Warren 2837a1d416 ARM: bcm2835: fix I2C module clock rate
BCM2835-ARM-Peripherals.pdf states that the I2C module's input clock is
nominally 150MHz, and that value is currently reflected in bcm2835.dtsi.
However, practical measurements show that the rate is actually 250MHz,
and this agrees with various downstream kernels.

Switch the I2C clock's frequency to 250MHz so that the generated bus
clock rate is accurate.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-03-04 17:15:34 -08:00
Santosh Shilimkar 08913c2d24 ARM: OMAP2+: Remove duplicate omap4430_init_late() declaration
Commit bbd707ac {ARM: omap2: use machine specific hook for late init}
accidentally added two declarations for omap4430_init_late().

Remove the duplicate declaration.

Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:37:31 -08:00
Ruslan Bilovol 39bb356ee6 ARM: OMAP2+: mux: correct wrong error messages
This is needed because the omap_mux_get_by_name()
function calls the _omap_mux_get_by_name subfunction
for each mux partition until needed mux is not found.
As a result, we get messages like
"Could not find signal XXX" for each partition
where this mux name does not exist.

This patch fixes wrong error message in
the _omap_mux_get_by_name() function moving it
to the omap_mux_get_by_name() one and as result
reduces noise in the kernel log.

My kernel log without this patch:
[...]
[    0.221801] omap_mux_init: Add partition: #2: wkup, flags: 3
[    0.222045] _omap_mux_get_by_name: Could not find signal fref_clk0_out.sys_drm_msecure
[    0.222137] _omap_mux_get_by_name: Could not find signal sys_nirq
[    0.222167] _omap_mux_get_by_name: Could not find signal sys_nirq
[    0.225006] _omap_mux_get_by_name: Could not find signal uart1_rx.uart1_rx
[    0.225006] _omap_mux_get_by_name: Could not find signal uart1_rx.uart1_rx
[    0.270111] _omap_mux_get_by_name: Could not find signal fref_clk4_out.fref_clk4_out
[    0.273406] twl: not initialized

[...]

My kernel log with this patch:
[...]
[    0.221771] omap_mux_init: Add partition: #2: wkup, flags: 3
[    0.222106] omap_mux_get_by_name: Could not find signal sys_nirq
[    0.224945] omap_mux_get_by_name: Could not find signal uart1_rx.uart1_rx
[    0.274536] twl: not initialized
[...]

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:37:31 -08:00
Felipe Balbi 0fa26ce9f3 ARM: OMAP2+: mux: fix debugfs file permission
OMAP's debugfs interface creates one file
for each signal in the mux table, such file
provides a read method but didn't provide
read permission. Fix it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:19:23 -08:00
Tony Lindgren 8a6201b9ea ARM: OMAP2+: Fix unmet direct dependencies for zoom for 8250 serial
We should not select drivers from kconfig as they should by default
be optional. Otherwise we'll be chasing broken dependencies forever:

warning: (MACH_OMAP_ZOOM2 && MACH_OMAP_ZOOM3 && MWAVE) selects SERIAL_8250
which has unmet direct dependencies (TTY && HAS_IOMEM && GENERIC_HARDIRQS)

Fix the issue by removing the selects for zoom and add them to
omap2plus_defconfig.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:19:22 -08:00
Rajendra Nayak 990fa4f537 ARM: OMAP3: board-generic: Add missing omap3_init_late
The .init_late callback for OMAP3 has been missing for DT
builds, which causes a lot of late PM initializations to
be missed in turn.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:18:49 -08:00
Jon Hunter 31d9adca82 ARM: OMAP2+: Fix broken gpmc support
Commit 6797b4fe (ARM: OMAP2+: Prevent potential crash if GPMC probe fails)
added code to ensure that GPMC chip-selects could not be requested until the
device probe was successful. The chip-selects should have been
unreserved at the end of the probe function, but the code to unreserve
them appears to have ended up in the gpmc_calc_timings() function and
hence, this is causing problems requesting chip-selects. Fix this merge
error by unreserving the chip-selects at the end of the probe, but
before we call the gpmc child probe functions (for device-tree) which
request a chip-select.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Philip Avinash <avinashphilip@ti.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
[tony@atomide.com: updated description to add breaking commit id]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-03-04 11:12:16 -08:00