Commit Graph

347415 Commits

Author SHA1 Message Date
Linus Torvalds 0c5445015c CRIS changes for 3.8
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Merge tag 'cris-for-linus-3.8' of git://jni.nu/cris

Pull CRIS changes from Jesper Nilsson.

... mainly the UAPI disintegration.

* tag 'cris-for-linus-3.8' of git://jni.nu/cris:
  UAPI: Fix up empty files in arch/cris/
  CRIS: locking: fix the return value of arch_read_trylock()
  CRIS: use kbuild.h instead of defining macros in asm-offset.c
  UAPI: (Scripted) Disintegrate arch/cris/include/asm
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch
2012-12-20 07:24:17 -08:00
Linus Torvalds 1ffab3d413 ARM: arm-soc fixes for 3.8
This is a batch of fixes for arm-soc platforms, most of it is for OMAP
 but there are others too (i.MX, Tegra, ep93xx). Fixes warnings, some
 broken platforms and drivers, etc. A bit all over the map really.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "This is a batch of fixes for arm-soc platforms, most of it is for OMAP
  but there are others too (i.MX, Tegra, ep93xx).  Fixes warnings, some
  broken platforms and drivers, etc.  A bit all over the map really."

There was some concern about commit 68136b10 ("RM: sunxi: Change device
tree naming scheme for sunxi"), but Tony says:
 "Looks like that's trivial to fix as needed, no need to rebuild the
  branch to fix that AFAIK.

  The fix can be done once Olof is available online again.

  Linus, I suggest that you go ahead and pull this if there are no other
  issues with this branch."

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
  ARM: sunxi: Change device tree naming scheme for sunxi
  ARM: ux500: fix missing include
  ARM: u300: delete custom pin hog code
  ARM: davinci: fix build break due to missing include
  ARM: exynos: Fix warning due to missing 'inline' in stub
  ARM: imx: Move platform-mx2-emma to arch/arm/mach-imx/devices
  ARM i.MX51 clock: Fix regression since enabling MIPI/HSP clocks
  ARM: dts: mx27: Fix the AIPI bus for FEC
  ARM: OMAP2+: common: remove use of vram
  ARM: OMAP3/4: cpuidle: fix sparse and checkpatch warnings
  ARM: OMAP4: clock data: DPLLs are missing bypass clocks in their parent lists
  ARM: OMAP4: clock data: div_iva_hs_clk is a power-of-two divider
  ARM: OMAP4: Fix EMU clock domain always on
  ARM: OMAP4460: Workaround ABE DPLL failing to turn-on
  ARM: OMAP4: Enhance support for DPLLs with 4X multiplier
  ARM: OMAP4: Add function table for non-M4X dplls
  ARM: OMAP4: Update timer clock aliases
  ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.h
  ARM: dts: Add build target for omap4-panda-a4
  ARM: dts: OMAP2420: Correct H4 board memory size
  ...
2012-12-20 07:21:54 -08:00
Linus Torvalds ddedec28b1 3.8: dma-buf minor updates
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Merge tag 'tag-for-linus-3.8' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf

Pull dma-buf updates from Sumit Semwal:
 "A fairly small dma-buf pull request for 3.8 - only 2 patches"

* tag 'tag-for-linus-3.8' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf:
  dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
  dma-buf: might_sleep() in dma_buf_unmap_attachment()
2012-12-20 07:18:29 -08:00
Linus Torvalds 8cb68bdf76 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon subsystem update from Jean Delvare:
 "There are many improvements to the it87 driver, as well as suspend
  support for the Winbond Super-I/O chips, and a few other fixes."

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon-vid: Add support for AMD family 11h to 15h processors
  hwmon: (it87) Support PECI for additional chips
  hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate
  hwmon: (it87) Manage device specific features with table
  hwmon: (it87) Replace pwm group macro with direct attribute definitions
  hwmon: (it87) Avoid quoted string splits across lines
  hwmon: (it87) Save fan registers in 2-dimensional array
  hwmon: (it87) Introduce support for tempX_offset sysfs attribute
  hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions
  hwmon: (it87) Save voltage register values in 2-dimensional array
  hwmon: (it87) Save temperature registers in 2-dimensional array
  hwmon: (w83627ehf) Get rid of smatch warnings
  hwmon: (w83627hf) Don't touch nonexistent I2C address registers
  hwmon: (w83627ehf) Add support for suspend
  hwmon: (w83627hf) Add support for suspend
  hwmon: Fix PCI device reference leak in quirk
2012-12-20 07:07:18 -08:00
Hugh Dickins b6b19f25f6 ksm: make rmap walks more scalable
The rmap walks in ksm.c are like those in rmap.c: they can safely be
done with anon_vma_lock_read().

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-20 07:06:56 -08:00
Hugh Dickins 2832bc19f6 sched: numa: ksm: fix oops in task_numa_placment()
task_numa_placement() oopsed on NULL p->mm when task_numa_fault() got
called in the handling of break_ksm() for ksmd.  That might be a
peculiar case, which perhaps KSM could takes steps to avoid? but it's
more robust if task_numa_placement() allows for such a possibility.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-20 07:06:56 -08:00
Zlatko Calusic cda73a10eb mm: do not sleep in balance_pgdat if there's no i/o congestion
On a 4GB RAM machine, where Normal zone is much smaller than DMA32 zone,
the Normal zone gets fragmented in time.  This requires relatively more
pressure in balance_pgdat to get the zone above the required watermark.
Unfortunately, the congestion_wait() call in there slows it down for a
completely wrong reason, expecting that there's a lot of
writeback/swapout, even when there's none (much more common).  After a
few days, when fragmentation progresses, this flawed logic translates to
a very high CPU iowait times, even though there's no I/O congestion at
all.  If THP is enabled, the problem occurs sooner, but I was able to
see it even on !THP kernels, just by giving it a bit more time to occur.

The proper way to deal with this is to not wait, unless there's
congestion.  Thanks to Mel Gorman, we already have the function that
perfectly fits the job.  The patch was tested on a machine which nicely
revealed the problem after only 1 day of uptime, and it's been working
great.

Signed-off-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-20 07:06:56 -08:00
David Howells 77c8006d8d UAPI: Fix up empty files in arch/cris/
Fix up three empty files in arch/cris/ by sticking placeholder comments in
there to prevent the patch program from deleting them.

I decided not to delete the arch-v*/Kbuild files as it's possibly someone might
want to use them for genhdr-y lines in the future, but they could be deleted
and the pointer lines removed from asm/Kbuild.  The uapi/arch-v*/Kbuild files
ought to be uneffected by such a change.

asm/swab.h didn't have anything outside of __KERNEL__ so nothing appeared in
uapi/asm/swab.h.  The latter, however, is exported by Kbuild.asm.

This needs to be applied after the CRIS UAPI disintegration patch.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2012-12-20 12:51:25 +01:00
Wei Yongjun 00addd1a2d CRIS: locking: fix the return value of arch_read_trylock()
arch_write_trylock() should return 'ret' instead of always
return 1.

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

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2012-12-20 12:51:19 +01:00
Jesper Nilsson e61ac0b05c UAPI Disintegration 2012-10-09
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Merge tag 'disintegrate-cris-20121009' of git://git.infradead.org/users/dhowells/linux-headers into for-linus2

UAPI Disintegration 2012-10-09

* tag 'disintegrate-cris-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate arch/cris/include/asm
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
  UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch
2012-12-20 12:48:53 +01:00
James Hogan 8e6b4dd1e1 CRIS: use kbuild.h instead of defining macros in asm-offset.c
This is modelled on commits such as the one below:

Commit fc1c3a003e ("sh: use kbuild.h
instead of defining macros in asm-offsets.c") introduced in v2.6.26.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2012-12-20 12:45:40 +01:00
Maarten Lankhorst ada65c7405 dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
Documentation says that code requiring dma-buf should add it to
select, so inline fallbacks are not going to be used. A link error
will make it obvious what went wrong, instead of silently doing
nothing at runtime.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2012-12-20 12:05:06 +05:30
Rob Clark b6fa0cd62c dma-buf: might_sleep() in dma_buf_unmap_attachment()
We never really clarified if unmap could be done in atomic context.
But since mapping might require sleeping, this implies mutex in use
to synchronize mapping/unmapping, so unmap could sleep as well.  Add
a might_sleep() to clarify this.

Signed-off-by: Rob Clark <rob@ti.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2012-12-20 12:05:05 +05:30
Linus Torvalds f01af9f858 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
 "Please pull to get these sparc AES/DES/CAMELLIA crypto bug fixes as
  well as an addition of a pte_accessible() define for sparc64 and a
  hugetlb fix from Dave Kleikamp."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in CAMELLIA code.
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in DES code.
  sparc64: Fix ECB looping constructs in AES code.
  sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.
  sparc64: Fix AES ctr mode block size.
  sparc64: Fix unrolled AES 256-bit key loops.
  sparc64: Define pte_accessible()
  sparc: huge_ptep_set_* functions need to call set_huge_pte_at()
2012-12-19 20:31:02 -08:00
Linus Torvalds 9eb127cc04 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Really fix tuntap SKB use after free bug, from Eric Dumazet.

 2) Adjust SKB data pointer to point past the transport header before
    calling icmpv6_notify() so that the headers are in the state which
    that function expects.  From Duan Jiong.

 3) Fix ambiguities in the new tuntap multi-queue APIs.  From Jason
    Wang.

 4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov.

 5) Don't destroy mutex after freeing up device private in mac802154,
    fix also from Konstantin Khlebnikov.

 6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch.

 7) SCTP HMAC kconfig rework, from Neil Horman.

 8) Fix SCTP jprobes function signature, otherwise things explode, from
    Daniel Borkmann.

 9) Fix typo in ipv6-offload Makefile variable reference, from Simon
    Arlott.

10) Don't fail USBNET open just because remote wakeup isn't supported,
    from Oliver Neukum.

11) be2net driver bug fixes from Sathya Perla.

12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David
    Woodhouse.

13) Fix MTU changing regression in 8139cp driver, from John Greene.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
  solos-pci: ensure all TX packets are aligned to 4 bytes
  solos-pci: add firmware upgrade support for new models
  solos-pci: remove superfluous debug output
  solos-pci: add GPIO support for newer versions on Geos board
  8139cp: Prevent dev_close/cp_interrupt race on MTU change
  net: qmi_wwan: add ZTE MF880
  drivers/net: Use of_match_ptr() macro in smsc911x.c
  drivers/net: Use of_match_ptr() macro in smc91x.c
  ipv6: addrconf.c: remove unnecessary "if"
  bridge: Correctly encode addresses when dumping mdb entries
  bridge: Do not unregister all PF_BRIDGE rtnl operations
  use generic usbnet_manage_power()
  usbnet: generic manage_power()
  usbnet: handle PM failure gracefully
  ksz884x: fix receive polling race condition
  qlcnic: update driver version
  qlcnic: fix unused variable warnings
  net: fec: forbid FEC_PTP on SoCs that do not support
  be2net: fix wrong frag_idx reported by RX CQ
  be2net: fix be_close() to ensure all events are ack'ed
  ...
2012-12-19 20:29:15 -08:00
Linus Torvalds e32795503d Device tree v3.8 bug fix branch. Fixes an undefined struct device build
error and a missing symbol export.
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mergetag object bc1008cf7d
 type commit
 tag gpio-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1355962627 +0000
 
 GPIO device driver bug fixes:
 - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
 - gpio/ich: Add missing spinlock init
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mergetag object d3601e56cf
 type commit
 tag spi-for-linus
 tagger Grant Likely <grant.likely@secretlab.ca> 1355962904 +0000
 
 SPI device driver bug fixes branch for the v3.8 merge window. Most of
 this is bug fixes to the core code and the sh-hspi and s3c64xx device
 drivers.
 
 There is also a patch here to add DT support to the Atmel driver. This
 one should have been in the first round, but I missed it. It's a low
 risk change contained within a single driver and the Atmel maintainer
 has requested it.
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Merge tags 'dt-for-linus', 'gpio-for-linus' and 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull devicetree, gpio and spi bugfixes from Grant Likely:
 "Device tree v3.8 bug fix:
   - Fixes an undefined struct device build error and a missing symbol
     export.

  GPIO device driver bug fixes:
   - gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
   - gpio/ich: Add missing spinlock init

  SPI device driver bug fixes:
   - Most of this is bug fixes to the core code and the sh-hspi and
     s3c64xx device drivers.

   - There is also a patch here to add DT support to the Atmel driver.
     This one should have been in the first round, but I missed it.
     It's a low risk change contained within a single driver and the
     Atmel maintainer has requested it."

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
  of: Fix export of of_find_matching_node_and_match()

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
  gpio/ich: Add missing spinlock init

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi/sh-hspi: fix return value check in hspi_probe().
  spi: fix tegra SPI binding examples
  spi/atmel: add DT support
  of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes.
  spi: Change FIFO flush operation and spi channel off
  spi: Keep chipselect assertion during one message
2012-12-19 20:26:16 -08:00
Linus Torvalds dcd6a97d1d Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm bugfix from Dave Airlie:
 "Just a single urgent regression fix, seeing a few wierd behaviours I'd
  like not to persist."

* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
2012-12-19 20:24:25 -08:00
Linus Torvalds 7005cd3970 A few /dev/random improvements for the v3.8 merge window.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random updates from Ted Ts'o:
 "A few /dev/random improvements for the v3.8 merge window."

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: Mix cputime from each thread that exits to the pool
  random: prime last_data value per fips requirements
  random: fix debug format strings
  random: make it possible to enable debugging without rebuild
2012-12-19 20:23:37 -08:00
David S. Miller 62ba63dc89 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in CAMELLIA code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:44:31 -08:00
David S. Miller b3a3794707 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in DES code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:43:38 -08:00
David S. Miller ce6889515d sparc64: Fix ECB looping constructs in AES code.
Things works better when you increment the source buffer pointer
properly.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:30:07 -08:00
David S. Miller b35d282ef7 sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.
We use the FPU and therefore cannot sleep during the crypto
loops.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:22:03 -08:00
David S. Miller a8d97cef21 sparc64: Fix AES ctr mode block size.
Like the generic versions, we need to support a block size
of '1' for CTR mode AES.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:20:23 -08:00
David S. Miller 9f28ffc03e sparc64: Fix unrolled AES 256-bit key loops.
The basic scheme of the block mode assembler is that we start by
enabling the FPU, loading the key into the floating point registers,
then iterate calling the encrypt/decrypt routine for each block.

For the 256-bit key cases, we run short on registers in the unrolled
loops.

So the {ENCRYPT,DECRYPT}_256_2() macros reload the key registers that
get clobbered.

The unrolled macros, {ENCRYPT,DECRYPT}_256(), are not mindful of this.

So if we have a mix of multi-block and single-block calls, the
single-block unrolled 256-bit encrypt/decrypt can run with some
of the key registers clobbered.

Handle this by always explicitly loading those registers before using
the non-unrolled 256-bit macro.

This was discovered thanks to all of the new test cases added by
Jussi Kivilinna.

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 15:19:11 -08:00
David Woodhouse 152a2a8b5e solos-pci: ensure all TX packets are aligned to 4 bytes
The FPGA can't handled unaligned DMA (yet). So copy into an aligned buffer,
if skb->data isn't suitably aligned.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams 13af816469 solos-pci: add firmware upgrade support for new models
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams 7fbdadb5e9 solos-pci: remove superfluous debug output
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
Nathan Williams f9baad02e7 solos-pci: add GPIO support for newer versions on Geos board
dwmw2: Tidy up a little, simpler matching on which GPIO is being accessed,
       only register on newer boards, register under PCI device instead of
       duplicating them under each ATM device.

Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:53:53 -08:00
John Greene 83c34fd00d 8139cp: Prevent dev_close/cp_interrupt race on MTU change
commit:  cb64edb6b8 upstream

Above commit may introduce a race between cp_interrupt and dev_close
/ change MTU / dev_open up state. Changes cp_interrupt to tolerate
this.  Change spin_locking in cp_interrupt to avoid possible
but unobserved race.

Reported-by: "Francois Romieu" <romieu@fr.zoreil.com>

Tested on virtual hardware, Tx MTU size up to 4096, max tx payload
    was ping -s 4068 for MTU of 4096. No real hardware, need test
    assist.

Signed-off-by: "John Greene" <jogreene@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: "David Woodhouse" <David.Woodhouse@intel.com>
Tested-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-19 14:30:59 -08:00
Gregory CLEMENT bc1008cf7d gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
When building without device tree support (for the mv78x00 SoCs for
example), the build failed because of_irq_count is undeclared. However
mvebu-gpio is not designed to build without device tree support. So
make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the
platform_device_id.

Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3,
DB-MV784MP-GP, Mirabox and OpenBlocks AX3.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-19 22:15:14 +00:00
Jean Delvare d39a948fef gpio/ich: Add missing spinlock init
As reported by CONFIG_DEBUG_SPINLOCK=y.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-19 22:13:08 +00:00
Maarten Lankhorst 0953e76e91 drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
Fix regression introduced by 85b144f860
"drm/ttm: call ttm_bo_cleanup_refs with reservation and lru lock held, v3"

Slowpath ttm_bo_cleanup_refs_and_unlock accidentally tried to increase
refcount on &bo->sync_obj instead of bo->sync_obj.

The compiler didn't complain since sync_obj_ref takes a void pointer,
so it was still valid c.

This could result in lockups, memory corruptions, and warnings like
these when graphics card VRAM usage is high:

------------[ cut here ]------------
WARNING: at include/linux/kref.h:42 radeon_fence_ref+0x2c/0x40()
Hardware name: System Product Name
Pid: 157, comm: X Not tainted 3.7.0-rc7-00520-g85b144f-dirty #174
Call Trace:
[<ffffffff81058c84>] ? warn_slowpath_common+0x74/0xb0
[<ffffffff8129273c>] ? radeon_fence_ref+0x2c/0x40
[<ffffffff8125e95c>] ? ttm_bo_cleanup_refs_and_unlock+0x18c/0x2d0
[<ffffffff8125f17c>] ? ttm_mem_evict_first+0x1dc/0x2a0
[<ffffffff81264452>] ? ttm_bo_man_get_node+0x62/0xb0
[<ffffffff8125f4ce>] ? ttm_bo_mem_space+0x28e/0x340
[<ffffffff8125fb0c>] ? ttm_bo_move_buffer+0xfc/0x170
[<ffffffff810de172>] ? kmem_cache_alloc+0xb2/0xc0
[<ffffffff8125fc15>] ? ttm_bo_validate+0x95/0x110
[<ffffffff8125ff7c>] ? ttm_bo_init+0x2ec/0x3b0
[<ffffffff8129419a>] ? radeon_bo_create+0x18a/0x200
[<ffffffff81293e80>] ? radeon_bo_clear_va+0x40/0x40
[<ffffffff812a5342>] ? radeon_gem_object_create+0x92/0x160
[<ffffffff812a575c>] ? radeon_gem_create_ioctl+0x6c/0x150
[<ffffffff812a529f>] ? radeon_gem_object_free+0x2f/0x40
[<ffffffff81246b60>] ? drm_ioctl+0x420/0x4f0
[<ffffffff812a56f0>] ? radeon_gem_pwrite_ioctl+0x20/0x20
[<ffffffff810f53a4>] ? do_vfs_ioctl+0x2e4/0x4e0
[<ffffffff810e5588>] ? vfs_read+0x118/0x160
[<ffffffff810f55ec>] ? sys_ioctl+0x4c/0xa0
[<ffffffff810e5851>] ? sys_read+0x51/0xa0
[<ffffffff814b0612>] ? system_call_fastpath+0x16/0x1b

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-12-20 07:46:20 +10:00
Jean Delvare c8ecd27da7 hwmon-vid: Add support for AMD family 11h to 15h processors
Since family 11h processors, AMD is exclusively using 7-bit VID codes
transmitted using a serial protocol over two pins (clock and data.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: David Hubbard <david.c.hubbard@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:17:02 +01:00
Guenter Roeck 1952978478 hwmon: (it87) Support PECI for additional chips
Extend support for reporting and selecting PECI temperature sensors
to IT8718, IT8720, IT8782, and IT8783. For IT8721, report the sensor
type for temp2 as Intel PECI (6) if the chip is configured to report
the PCH temperature.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:02 +01:00
Guenter Roeck 5d8d2f2bdb hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate
IT8721 and IT8728 support Intel PECI temperature reporting. Each sensor
can be programmed to display the temperature reported on the PECI interface.

If configured for Intel PECI, the driver reported the wrong sensor type for
the respective thermal sensor. Fix the code to correctly report it as
"Intel PECI (6)".

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:02 +01:00
Guenter Roeck 483db43e81 hwmon: (it87) Manage device specific features with table
This simplifies the code, improves runtime performance, reduces
code size (about 280 bytes on x86_64), and makes it easier
to add support for new devices.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:02 +01:00
Guenter Roeck c4458db368 hwmon: (it87) Replace pwm group macro with direct attribute definitions
Fix checkpatch error:

ERROR: Macros with multiple statements should be enclosed in a do - while loop

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:02 +01:00
Guenter Roeck 1d9bcf6aef hwmon: (it87) Avoid quoted string splits across lines
Fix the respective checkpatch warnings.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:01 +01:00
Guenter Roeck e1169ba0ae hwmon: (it87) Save fan registers in 2-dimensional array
Also unify fan functions to use the same code for 8 and 16 bit fans.

This patch reduces code size by approximately 1,200 bytes on x86_64.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:01 +01:00
Guenter Roeck 161d898ac9 hwmon: (it87) Introduce support for tempX_offset sysfs attribute
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:01 +01:00
Guenter Roeck 2cece01ffd hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions
The macro name show_sensor_offset is confusing since it related to the sensor
type, not an offset - even more so when we introduce offset attributes later on.
Replace it with direct definitions, and replace the show_sensor/set_sensor
function names with show_temp_type/set_temp_type. This also resolves a
checkpatch error.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:01 +01:00
Guenter Roeck 929c6a5696 hwmon: (it87) Save voltage register values in 2-dimensional array
Reduces code size (more than 600 bytes on x86_64),
and gets rid of some checkpatch errors.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:00 +01:00
Guenter Roeck 60ca385a53 hwmon: (it87) Save temperature registers in 2-dimensional array
Cleaner code, fewer checkpatch errors, and reduced code size
(saves more than 500 bytes on x86-64).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2012-12-19 22:17:00 +01:00
Jean Delvare 45633fb370 hwmon: (w83627ehf) Get rid of smatch warnings
The smatch static code analyzer complains:

drivers/hwmon/w83627ehf.c:911 w83627ehf_update_device() error: buffer overflow 'W83627EHF_REG_TEMP_OFFSET' 3 <= 8
drivers/hwmon/w83627ehf.c:909 w83627ehf_update_device() error: buffer overflow 'data->temp_offset' 3 <= 8
drivers/hwmon/w83627ehf.c:2672 w83627ehf_resume() error: buffer overflow 'W83627EHF_REG_TEMP_OFFSET' 3 <= 8
drivers/hwmon/w83627ehf.c:2673 w83627ehf_resume() error: buffer overflow 'data->temp_offset' 3 <= 8

A deeper analysis of the code shows that these are false positives, as
only the lower 3 bits of data->have_temp_offset can be set so the
write is never attempted with i >= 3. However this shows that the code
isn't very robust and future changes could easily introduce a buffer
overflow. So let's add a safety check to prevent that and make smatch
happy.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Peter Huewe <PeterHuewe@gmx.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:17:00 +01:00
Jean Delvare 8f3c7c547d hwmon: (w83627hf) Don't touch nonexistent I2C address registers
Only the W83627HF could be accessed through I2C. All other supported
chips are LPC-only, so they do not have I2C address registers. Don't
write to nonexistent or reserved registers on these chips.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:17:00 +01:00
Jean Delvare 7e630bb55a hwmon: (w83627ehf) Add support for suspend
On suspend some register values are lost, most notably the Value RAM
areas but also other limits and settings. Restore them on resume.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:16:59 +01:00
Jean Delvare 275b7d6ebe hwmon: (w83627hf) Add support for suspend
On suspend some register values are lost, most notably the Value RAM
areas but also other limits. Restore them on resume. On top of that,
some fixups are needed to work around BIOS bugs, in particular when
the BIOS omits running the same initialization sequence on resume
that it does after boot. In that case we have to carry initialization
over suspend.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:16:59 +01:00
Jean Delvare d6dab7dd12 hwmon: Fix PCI device reference leak in quirk
Thankfully this only affects systems with one specific south bridge
and is most probably harmless unless the hwmon module is heavily
cycled.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
2012-12-19 22:16:59 +01:00
Linus Torvalds 2f0bf92513 Xtensa patchset for v3.8-rc0
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Merge tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linux

Pull Xtensa patchset from Chris Zankel:
 "This contains support of device trees, many fixes, and code clean-ups"

* tag 'xtensa-20121218' of git://github.com/czankel/xtensa-linux: (33 commits)
  xtensa: don't try to build DTB when OF is disabled
  xtensa: set the correct ethernet address for xtfpga
  xtensa: clean up files to make them code-style compliant
  xtensa: provide endianness macro for sparse
  xtensa: fix RASID SR initialization
  xtensa: initialize CPENABLE SR when core has one
  xtensa: reset all timers on initialization
  Use for_each_compatible_node() macro.
  xtensa: add XTFPGA DTS
  xtensa: add support for the XTFPGA boards
  xtensa: add device trees support
  xtensa: add IRQ domains support
  xtensa: add U-Boot image support (uImage).
  xtensa: clean up boot make rules
  xtensa: fix mb and wmb definitions
  xtensa: add s32c1i-based spinlock implementations
  xtensa: add s32c1i-based bitops implementations
  xtensa: add s32c1i-based atomic ops implementations
  xtensa: add s32c1i sanity check
  xtensa: add trap_set_handler function
  ...
2012-12-19 13:05:22 -08:00
Linus Torvalds 1bd12c91de Merge branch 'x86/nuke386' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull one final 386 removal patch from Peter Anvin.

IRQ 13 FPU error handling is gone.  That was not one of the proudest
moments in PC history.

* 'x86/nuke386' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, 386 removal: Remove support for IRQ 13 FPU error reporting
2012-12-19 13:02:23 -08:00