147112 Commits

Author SHA1 Message Date
Linus Torvalds
ff39d0e8f0 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull ACPI and Power Management changes from Len Brown.

This does an evil merge to fix up what I think is a mismerge by Len to
the gma500 driver, and restore it to the mainline state.

In that driver, both branches had commented out the call to
acpi_video_register(), and Len resolved the merge to that commented-out
version.

However, in mainline, further changes by Alan (commit d839ede47a56:
"gma500: opregion and ACPI" to be exact) had re-enabled the ACPI video
registration, so the current state of the driver seems to want it.

Alan is apparently still feeling the effects of partying with the Queen,
so he didn't reply to my query, but I'll do the evil merge anyway.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  ACPI: fix acpi_bus.h build warnings when ACPI is not enabled
  drivers: acpi: Fix dependency for ACPI_HOTPLUG_CPU
  tools/power turbostat: fix IVB support
  tools/power turbostat: fix un-intended affinity of forked program
  ACPI video: use after input_unregister_device()
  gma500: don't register the ACPI video bus
  acpi_video: Intel video is not always i915
  acpi_video: fix leaking PCI references
  ACPI: Ignore invalid _PSS entries, but use valid ones
  ACPI battery: only refresh the sysfs files when pertinent information changes
2012-06-06 10:47:15 -07:00
Linus Torvalds
ae501be0f6 InfiniBand/RDMA fixes for 3.5-rc2, all in hardware drivers:
- Fix crash in cxgb4
  - Fixes to new ocrdma driver
  - Regression fixes for mlx4
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABCAAGBQJPz5V+AAoJEENa44ZhAt0hsXoQAIFBNbsLWLft4J9jpyDAFj5z
 SpspcZAVgJW+K7I6j38SdQXMsR/XmcwM8Yh3iJIa/YG0P/6bWXDNU20itN62mAcI
 D+LphECUv/T8PGxEcAFlwjLYy5kcgFBTs/t7AgVS57OL4z8YuDLDr7uhdcnPdq7t
 AMIptqhXZgSnM/peIkf2SWBYxHSUMhukrlu5uNB9uc9GC9VRGhioXxT3eBPwr54O
 7BwHxQGDYtFZ4fYKmFxN9sJJmFf9nl/WhYM2HwCMPEe4UzlxxfbP7/c17QNS7YGo
 e072Jvs+U2ttb4J7J2yBRcpiiSjYDAVi+7fE9OtAdWyfPDa9MmcajVq7PUnohZLc
 muNSv1RGOebj2mSjE+oc1oWZKkM/nSEwbIE7PJOvWX2RdqOs8xNNC0RjgvsXDvyf
 +lARPcyolxpJXtvIlLY/Ua1KhJf52zu+Kp1QCbEnloU/NuGcc09It6Wq6X1yU/Gs
 N29qjuFOBoHQxDzfWPc3Uhp1/eNI8UJiTfO9CSYHv2ZHJzW8BqoblbKlE2l43TDg
 frH1l1/9RYY7gTGoCVvfJByvSWM7rBJdNfpu+yJDm5en86xcF6HB7GG0nJ/okpw2
 dUqQsLu+nTKZn8KCM3jzgP/ANT+PWk1UZlS1fIaMFMwa1SLWYqbaW/KEbRrY5IeP
 H0q/TFhJH8PccBjPbcsT
 =zl8u
 -----END PGP SIGNATURE-----

Merge tag 'rdma-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull InfiniBand/RDMA fixes from Roland Dreier:
 "All in hardware drivers:
   - Fix crash in cxgb4
   - Fixes to new ocrdma driver
   - Regression fixes for mlx4"

* tag 'rdma-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mlx4: Fix max_wqe capacity reported from query device
  mlx4_core: Fix setting VL_cap in mlx4_SET_PORT wrapper flow
  IB/mlx4: Fix EQ deallocation in legacy mode
  RDMA/cxgb4: Fix crash when peer address is 0.0.0.0
  RDMA/ocrdma: Remove unnecessary version.h includes
  RDMA/ocrdma: Fix signaled event for SRQ_LIMIT_REACHED
  RDMA/ocrdma: Correct queue free count math
2012-06-06 10:45:21 -07:00
Roland Dreier
20952cdd8e Merge branches 'cxgb4', 'mlx4' and 'ocrdma' into for-linus 2012-06-06 10:08:11 -07:00
Sagi Grimberg
fc2d004419 IB/mlx4: Fix max_wqe capacity reported from query device
1. Limit the max number of WQEs per QP reported when querying the
   device, so that ib_create_qp() will not fail for a QP size that the
   device claimed to support due to additional headroom WQEs being
   allocated.

2. Limit qp resources accepted for ib_create_qp() to the limits
   reported in ib_query_device().  In kernel space, make sure that the
   limits returned to the caller following qp creation also lie within
   the reported device limits. For userspace, report as before, and do
   adjustment in libmlx4 (so as not to break ABI).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Sagi Grimberg <sagig@mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-06-06 10:08:03 -07:00
Jack Morgenstein
edc4a67e15 mlx4_core: Fix setting VL_cap in mlx4_SET_PORT wrapper flow
Commit 096335b3f983 ("mlx4_core: Allow dynamic MTU configuration for
IB ports") modifies the port VL setting.  This exposes a bug in
mlx4_common_set_port(), where the VL cap value passed in (inside the
command mailbox) is incorrectly zeroed-out:

mlx4_SET_PORT modifies the VL_cap field (byte 3 of the mailbox).
Since the SET_PORT command is paravirtualized on the master as well as
on the slaves, mlx4_SET_PORT_wrapper() is invoked on the master.  This
calls mlx4_common_set_port() where mailbox byte 3 gets overwritten by
code which should only set a single bit in that byte (for the reset
qkey counter flag) -- but instead overwrites the entire byte.

The result is that when running in SR-IOV mode, the VL_cap will be set
to zero -- fix this.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-06-06 10:07:54 -07:00
Linus Torvalds
374916ed16 md: 2 fixes for 3.5-rc
One sparse-warning fix, one bigfix for 3.4-stable
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.18 (GNU/Linux)
 
 iQIVAwUAT86Oqjnsnt1WYoG5AQJ9rhAAuLVImkvxtHHMM7j2E8ZTQ1pWT6JRf6qC
 Rsz/s41olPwSEVRuLXpZrle/dSN2l1Ys49FR2u6m+96lM0At2JlkML/Sc4Gszr0g
 Oeo8FN+Rv/Sv6Chv7MuWp0z0WOs3ruIR3AYQIo+jnaVzZLLQ2HRN8wupjvpCIZyk
 WdPu6t/9G+OtnkFWCC3FDEIyqpghg1TcoK93b1eRFD/ZoPV8yDJ9bba//fDesVVI
 OhvUJPqeJ/ow+sA1MzyLhKB6CLPmEob0qxi8++CdnTfx8fwnkYNKlgsxf0WQ8JQ5
 GSClKNUpki0yiYWJR6pJrv6+e6WbesX1DriRSRODJLKls/bQKnskaxGx4DUa73BM
 DkOUsALfaTfGD5XiXgEjTU2HR+codiqvDavQjWOlHWgwIKB2MYQWIwFLK/T2RSdC
 5f30IiM6kHJMZS3lVP2kjfXAfQ10kiTBg7E6btzCO3aso84yxr6Er65skdnlIi5r
 q1z7FCnQimfZYjlbuR8EUtdxHdGZkSQbtZ5E7X9dvmUpFstvgGGPr/SuAP3r87kM
 LbyRSoDpGk8dXZ5/epY+IKCQGsFZIeTlg+eonjSuVNN8Anr3WAE1VeRmLBQilnXk
 hGDLKAZ4v9YwRJWqoY3hewtpcYhCMqNGGk4hPKmJuh37OTOWFQl8sXVk2Pqzy1ap
 uIP66qrvvI0=
 =VrYL
 -----END PGP SIGNATURE-----

Merge tag 'md-3.5-fixes' of git://neil.brown.name/md

Pull two md fixes from NeilBrown:
 "One sparse-warning fix, one bugfix for 3.4-stable"

* tag 'md-3.5-fixes' of git://neil.brown.name/md:
  md: raid1/raid10: fix problem with merge_bvec_fn
  lib/raid6: fix sparse warnings in recovery functions
2012-06-06 09:49:28 -07:00
Linus Torvalds
9e68447f5b IOMMU fixes for v3.5-rc1
Two patches are in here which fix AMD IOMMU specific issues. One patch
 fixes a long-standing warning on resume because the amd_iommu_resume
 function enabled interrupts. The other patch fixes a deadlock in an
 error-path of the page-fault request handling code of the IOMMU driver.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPz1wQAAoJECvwRC2XARrj6FkQAJsF4LuzKXQcAybUnzMZq3E8
 g2ii0uknErrNgsAjnooH1aTzq0vo5Ps/ZLj84XJER+V0vYkD574vhKs9dzu8Y8at
 xv20AH+Uei+0tUVy2WCPglVwZaSrQB+eVm0oqWIqNKnp28q3pVsns8iccp+Anqxz
 VV8IqJchfAUXdB8EGJCbZkT+YGfNcFGXx2bfYyiNBUvXOfE6fzzXZly0AXWcm9GB
 XLYxLdtZ5RYG874IMKnQvAUCXAfN21snK61i1hcx1aoZynzVAFvbf1SnzcINuX4M
 SqXdies6Ui8S2Ndvl4wZXfEkFYRL48v2+tpjp9bxEvvfX40WCbUHJ3M7Z+LoayvP
 Xgpshp5JaoXcgp3Rgyhyd22HzKMP291NyjObrKBgf6QxFaQSz16OIsFN9aKxEiyc
 QCMJyLgfKeBDWM64Zw2u526RIIMENPIim+YH5R2jN08kZUYd+5r611E5BcxE0I6Z
 uuuDi+eY+UCiBVyofckuJz4yVnNIZroRSFoldfsbv7BvHCE4QNOCyG5JrdVzL0e3
 81dgmMDaPCr2ga2NjJ2hebYJLNYNc4IIf/zwK8OoT/S5sD53zU42WIQ2Ug91hXmw
 ep04oobprN764te1VOaSbm9FNUCD3ykf6xLtqX9gKp254mZ/w46YaMR0GSphrUbS
 YBNnrSbIq+1z5MtruD/V
 =qLIK
 -----END PGP SIGNATURE-----

Merge tag 'iommu-fixes-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Two patches are in here which fix AMD IOMMU specific issues.  One
  patch fixes a long-standing warning on resume because the
  amd_iommu_resume function enabled interrupts.  The other patch fixes a
  deadlock in an error-path of the page-fault request handling code of
  the IOMMU driver.

* tag 'iommu-fixes-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Fix deadlock in ppr-handling error path
  iommu/amd: Cache pdev pointer to root-bridge
2012-06-06 09:47:57 -07:00
Eugeni Dodonov
67384fe3fd char/agp: add another Ironlake host bridge
This seems to come on Gigabyte H55M-S2V and was discovered through the
https://bugs.freedesktop.org/show_bug.cgi?id=50381 debugging.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50381
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-06 17:05:29 +02:00
Daniel Vetter
cb05d8dede drm/i915: fix up ivb plane 3 pageflips
Or at least plug another gapping hole. Apparrently hw desingers only
moved the bit field, but did not bother ot re-enumerate the planes
when adding support for a 3rd pipe.

Discovered by i-g-t/flip_test.

This may or may not fix the reference bugzilla, because that one
smells like we have still larger fish to fry.

v2: Fixup the impossible case to catch programming errors, noticed by
Chris Wilson.

References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Eugeni Dodonov <eugeni.dodonov@intel.com>
Cc: stable@vger.kernel.org
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-05 21:05:21 +02:00
Linus Torvalds
5f73639c63 Merge branch '3.5-merge-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull two scsi target fixes from Nicholas Bellinger:
 "The first is a small name-space collision fix from Stefan for the new
  sbp-target / ieee-1394 code, and second is the FILEIO backend
  conversion patch to always use O_DSYNC by default instead of O_SYNC as
  recommended by hch.  Note the latter is CC'ed stable."

* '3.5-merge-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target/file: Use O_DSYNC by default for FILEIO backends
  sbp-target: rename a variable to avoid name clash
2012-06-05 11:55:27 -07:00
Linus Torvalds
690efa08e2 Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux
Pull embedded i2c update from Wolfram Sang:
 "This only contains one new driver which had multiple dependencies
  (pinctrl, i2c-mux-rework, new devm_* functions), so I decided to wait
  for rc1.  Plus, it had to wait a little for the ack of a devicetree
  maintainer since the bindings were not trivial enough for me to pass
  through.

  So, given that, I hope there is still something like the "new driver
  rule", so we could have the driver in 3.5 and people can start using
  it.  That would make merging support for some boards easier for 3.6
  since the dependency on this driver is gone then."

* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
  i2c: Add generic I2C multiplexer using pinctrl API
2012-06-05 10:55:31 -07:00
Alex Deucher
d430f7dbf7 drm/radeon/kms: add new Trinity PCI ids
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 15:11:09 +01:00
Christian König
bb40915582 drm/radeon: fix vm deadlocks on cayman
Locking mutex in different orders just screams for
deadlocks, and some testing showed that it is actually
quite easy to trigger them.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 09:27:23 +01:00
Alex Deucher
1a8ca7502c drm/radeon: fix gpu_init on si
- Properly set up the RBs
- Properly set up the SPI
- Properly set up gb_addr_config

This should fix rendering issues on certain cards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 09:25:54 +01:00
Rafał Miłecki
7838e05a0d drm/radeon/hdmi: don't set SEND_MAX_PACKETS bit
Many TVs and A/V receivers don't work with this bit set. Problem was
confirmed using: Onkyo TX-SR605, Sony BRAVIA KDL-52X3500, Sony BRAVIA
KDL-40S40xx. In theory this bit shouldn't affect audio engine when
feeding it with data, however it seems it does. Driver fglrx doesn't set
that bit in any of the above cases.
This fixes a regression introduced by 3.5-rc1.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 09:25:33 +01:00
Rafał Miłecki
0aecb5a4ba drm/radeon/audio: don't hardcode CRTC id
This is based on info released by AMD, should allow using audio in much
more cases.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 09:25:01 +01:00
Alex Deucher
d4e30ef05c drm/radeon: make audio_init consistent across asics
Call it in the asic startup callback on all asics.
Previously r600 and rv770 called it in the startup
and resume callbacks while all the other asics called
it in the startup callback.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-05 09:24:33 +01:00
Seung-Woo Kim
5736603bef drm/exynos: fixed blending for hdmi graphic layer
Blending for graphic layer 0 of hdmi mixer was not set so video
layer cannot be showed if graphic layer 0 is enabled.
This patch fixes blending values to support blending between
graphic layer 0 and video layer.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-06-05 13:25:18 +09:00
Laurent Pinchart
f56fdcef4d drm/exynos: Remove dummy encoder get_crtc operation implementation
The encoder get_crtc operation is called to retrieve a pointer to the
CRTC the encoder is currenctly connected to, right after setting the
encoder::crtc field to the new CRTC. The implementation of this
operation returns the pointer to the new CRTC, which is then pointlessly
compared to itself.

As the operation is not mandatory, don't implement it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 13:25:15 +09:00
Laurent Pinchart
07b6835f2c drm/exynos: Keep a reference to frame buffer GEM objects
GEM objects used by frame buffers must be referenced for the whole life
of the frame buffer. Release the references in the frame buffer
destructor instead of its constructor.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 11:53:58 +09:00
Laurent Pinchart
6037bafa2e drm/exynos: Don't cast GEM object to Exynos GEM object when not needed
The exynos_drm_gem_dumb_map_offset() doesn't need to access any
Exynos-specific GEM object fields, don't cast the GEM object.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 11:53:58 +09:00
Laurent Pinchart
293a1c128e drm/exynos: DRIVER_BUS_PLATFORM is not a driver feature
DRIVER_BUS_PLATFORM is a bus type used internally in the DRM core, not a
flag for the drm_driver::driver_features field.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 11:53:58 +09:00
Ville Syrjälä
363b06aaa5 drm/exynos: Use DRM_FORMAT_{NV12, YUV420} instead of DRM_FORMAT_{NV12M, YUV420M}
The NV12M/YUV420M formats are identical to the already existing standard
NV12/YUV420 formats. The M variants will be removed, so convert the
driver to use the standard names.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-06-05 11:51:43 +09:00
Linus Torvalds
a3fe778c78 Frontswap provides a "transcendent memory" interface for swap pages.
In some environments, dramatic performance savings may be obtained because
 swapped pages are saved in RAM (or a RAM-like device) instead of a swap disk.
 This tag provides the basic infrastructure along with some changes to the
 existing backends.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQEcBAABAgAGBQJPsorBAAoJEFjIrFwIi8fJcz8H/RBXCtFo0kiJmRked3nMAIDO
 /2zN/q/Qawsg9aeoGlP7G8hQi9PMipbhQj3ixHyCTMv0zMbH988GXbBce+gIcg6e
 TOQi7xXAuPEwLizmSpiTv84XzN5bMgu1oJXEqIXw0EIpuZAmp+9m/o3WBwEAtyxi
 B+hvjE7eZM8f75K3lxs6sOtmIcERj9zqmT933Y8+i9iiuRyGMey2SyKtvVLbYZ+j
 HroFMUi0so5TzxT/cpkRiHu0U75c651o+LV00zh7InMqbwyRsWlKTf53k8Q/q2WP
 I7dVmfItwN/TpOrYTfxglYFlbYuUP35ziFvZ2trd6hcs9RK8OuKw+OmBLReHTtc=
 =x9Vp
 -----END PGP SIGNATURE-----

Merge tag 'stable/frontswap.v16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm

Pull frontswap feature from Konrad Rzeszutek Wilk:
 "Frontswap provides a "transcendent memory" interface for swap pages.
  In some environments, dramatic performance savings may be obtained
  because swapped pages are saved in RAM (or a RAM-like device) instead
  of a swap disk.  This tag provides the basic infrastructure along with
  some changes to the existing backends."

Fix up trivial conflict in mm/Makefile due to removal of swap token code
changing a line next to the new frontswap entry.

This pull request came in before the merge window even opened, it got
delayed to after the merge window by me just wanting to make sure it had
actual users.  Apparently IBM is using this on their embedded side, and
Jan Beulich says that it's already made available for SLES and OpenSUSE
users.

Also acked by Rik van Riel, and Konrad points to other people liking it
too.  So in it goes.

By Dan Magenheimer (4) and Konrad Rzeszutek Wilk (2)
via Konrad Rzeszutek Wilk
* tag 'stable/frontswap.v16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm:
  frontswap: s/put_page/store/g s/get_page/load
  MAINTAINER: Add myself for the frontswap API
  mm: frontswap: config and doc files
  mm: frontswap: core frontswap functionality
  mm: frontswap: core swap subsystem hooks and headers
  mm: frontswap: add frontswap header file
2012-06-04 12:28:45 -07:00
Linus Torvalds
c22072bdf0 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The clocksource driver is pure hardware enablement and the skew option
  is default off, well tested and non dangerous."

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick: Move skew_tick option into the HIGH_RES_TIMER section
  clocksource: em_sti: Add DT support
  clocksource: em_sti: Emma Mobile STI driver
  clockevents: Make clockevents_config() a global symbol
  tick: Add tick skew boot option
2012-06-04 11:25:31 -07:00
Daniel Vetter
b7884eb45e drm/i915: hold forcewake around ring hw init
Empirical evidence suggests that we need to: On at least one ivb
machine when running the hangman i-g-t test, the rings don't properly
initialize properly - the RING_START registers seems to be stuck at
all zeros.

Holding forcewake around this register init sequences makes chip reset
reliable again. Note that this is not the first such issue:

commit f01db988ef6f6c70a6cc36ee71e4a98a68901229
Author: Sean Paul <seanpaul@chromium.org>
Date:   Fri Mar 16 12:43:22 2012 -0400

    drm/i915: Add wait_for in init_ring_common

added delay loops to make RING_START and RING_CTL initialization
reliable on the blt ring at boot-up. So I guess it won't hurt if we do
this unconditionally for all force_wake needing gpus.

To avoid copy&pasting of the HAS_FORCE_WAKE check I've added a new
intel_info bit for that.

v2: Fixup missing commas in static struct and properly handling the
error case in init_ring_common, both noticed by Jani Nikula.

Cc: stable@vger.kernel.org
Reported-and-tested-by: Yang Guang <guang.a.yang@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50522
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-04 20:25:29 +02:00
Chris Wilson
3eef8918ff drm/i915: Mark the ringbuffers as being in the GTT domain
By correctly describing the rinbuffers as being in the GTT domain, it
appears that we are more careful with the management of the CPU cache
upon resume and so prevent some coherency issue when submitting commands
to the GPU later. A secondary effect is that the debug logs are then
consistent with the actual usage (i.e. they no longer describe the
ringbuffers as being in the CPU write domain when we are accessing them
through an wc iomapping.)

Reported-and-tested-by: Daniel Gnoutcheff <daniel@gnoutcheff.name>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41092
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-04 20:16:40 +02:00
Stephen Warren
ae58d1e406 i2c: Add generic I2C multiplexer using pinctrl API
This is useful for SoCs whose I2C module's signals can be routed to
different sets of pins at run-time, using the pinctrl API.

                                 +-----+  +-----+
                                 | dev |  | dev |
    +------------------------+   +-----+  +-----+
    | SoC                    |      |        |
    |                   /----|------+--------+
    |   +---+   +------+     | child bus A, on first set of pins
    |   |I2C|---|Pinmux|     |
    |   +---+   +------+     | child bus B, on second set of pins
    |                   \----|------+--------+--------+
    |                        |      |        |        |
    +------------------------+  +-----+  +-----+  +-----+
                                | dev |  | dev |  | dev |
                                +-----+  +-----+  +-----+

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2012-06-04 16:49:43 +02:00
Joerg Roedel
eee53537c4 iommu/amd: Fix deadlock in ppr-handling error path
In the error path of the ppr_notifer it can happen that the
iommu->lock is taken recursivly. This patch fixes the
problem by releasing the iommu->lock before any notifier is
invoked. This also requires to move the erratum workaround
for the ppr-log (interrupt may be faster than data in the log)
one function up.

Cc: stable@vger.kernel.org # v3.3, v3.4
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-06-04 12:47:44 +02:00
Joerg Roedel
c1bf94ec1e iommu/amd: Cache pdev pointer to root-bridge
At some point pci_get_bus_and_slot started to enable
interrupts. Since this function is used in the
amd_iommu_resume path it will enable interrupts on resume
which causes a warning. The fix will use a cached pointer
to the root-bridge to re-enable the IOMMU in case the BIOS
is broken.

Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2012-06-04 12:47:44 +02:00
Shlomo Pongratz
3aac6ff16a IB/mlx4: Fix EQ deallocation in legacy mode
Commit e605b743f33d ("IB/mlx4: Increase the number of vectors (EQs)
available for ULPs") didn't handle correctly the case where there
aren't enough MSI-X vectors to increase the number of EQs, so only the
legacy EQs are allocated.  This results in an attempt to memset() to
zero the EQ table which was never allocated and a kernel crash.

Fix this by checking in the teardown flow if the table of EQs was ever
allocated.  Also remove some unneeded setting to zero of the EQ
related fields in struct mlx4_ib_dev.

Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-06-03 23:02:16 -07:00
Thadeu Lima de Souza Cascardo
71b43fd573 RDMA/cxgb4: Fix crash when peer address is 0.0.0.0
When using rping -c -a 0.0.0.0 with iw_cxgb4, the system crashes when
rdma_connect() is called.  ip_dev_find() will return NULL, but pdev is
accessed anyway.

Checking that pdev is NULL and returning -ENODEV prevents the system
from crashing.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-06-03 22:59:15 -07:00
Len Brown
d3514abcf5 Merge branches 'bugfix-battery', 'bugfix-misc', 'bugfix-rafael', 'bugfix-turbostat', 'bugfix-video' and 'workaround-pss' into release
bug fixes

Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 00:48:41 -04:00
Len Brown
7e1bd6e38b Merge branch 'upstream' into bugfix-video
Update bugfix-video branch to 2.5-rc1
so I don't have to again resolve the
conflict in these patches vs. upstream.

Conflicts:
	drivers/gpu/drm/gma500/psb_drv.c

	text conflict: add comment vs delete neighboring line

	keep just this:
	/* igd_opregion_init(&dev_priv->opregion_dev); */
	/* acpi_video_register(); */

Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 00:35:19 -04:00
Kukjin Kim
5041caa4d5 gpio/samsung: fix the typo 'exynos5_xxx' instead of 'exonys5_xxx'
Should be 'exynos5_xxx' instead of 'exonys5_xxx'.

It happened at the commit 30b842889eea ("Merge tag 'soc2' of
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc")
during v3.5 merge window.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
[ My bad  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-03 21:21:01 -07:00
Fabio Estevam
2f07a6134f drivers: acpi: Fix dependency for ACPI_HOTPLUG_CPU
Fix the following build warning:

warning: (ACPI_HOTPLUG_CPU) selects ACPI_CONTAINER which has unmet direct dependencies (ACPI && EXPERIMENTAL)

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2012-06-04 00:07:33 -04:00
Linus Torvalds
4d578573b8 Merge branch 'pm-acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull some left-over PM patches from Rafael J. Wysocki.

* 'pm-acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / PM: Make acpi_pm_device_sleep_state() follow the specification
  ACPI / PM: Make __acpi_bus_get_power() cover D3cold correctly
  ACPI / PM: Fix error messages in drivers/acpi/bus.c
  rtc-cmos / PM: report wakeup event on ACPI RTC alarm
  ACPI / PM: Generate wakeup events on fixed power button
2012-06-03 20:15:57 -07:00
Nicholas Bellinger
a4dff3043c target/file: Use O_DSYNC by default for FILEIO backends
Convert to use O_DSYNC for all cases at FILEIO backend creation time to
avoid the extra syncing of pure timestamp updates with legacy O_SYNC during
default operation as recommended by hch.  Continue to do this independently of
Write Cache Enable (WCE) bit, as WCE=0 is currently the default for all backend
devices and enabled by user on per device basis via attrib/emulate_write_cache.

This patch drops the now unnecessary fd_buffered_io= token usage that was
originally signalling when to explictly disable O_SYNC at backend creation
time for buffered I/O operation.  This can end up being dangerous for a number
of reasons during physical node failure, so go ahead and drop this option
for now when O_DSYNC is used as the default.

Also allow explict FUA WRITEs -> vfs_fsync_range() call to function in
fd_execute_cmd() independently of WCE bit setting.

Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-06-02 23:47:20 -07:00
Linus Torvalds
912afc3616 Improve multipath's retrying mechanism in some defined circumstances
and provide a simple reserve/release mechanism for userspace tools to
 access thin provisioning metadata while the pool is in use.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPyqIdAAoJEK2W1qbAHj1nSPoQAJvAb/6UHufTWC/lufbEyo7t
 ft6uwZZ4S/VV1Gdx8V5YXo3rxkVIZj/CV0hiJIDctmDMKGPMlzup39kCgjD/rOUF
 mzcFAE8sEr3QEavkfjSWw2RHIIlhnJpvqVnb8nu3p/mSgAB4qYGgaDjBpi+W60PV
 aqQSSWgwH1uNhfGDBIxQoJ8OIjjYvKPIf2Ir2FAXam/dNi9chWO9nzFdj3q2LccP
 nZir094BDsFac1BF0FYW3J+rgT1FfPO7RRGAQct6WNJ197IZlYWYjKH3XehxnUHE
 wgiJmjfUO8vrho1hhWmWDOesKJPPWFN67EQnl5FqAu9itP7c7k8bd7Ay4jWgtZQU
 QIx10uiAgAuFUmTdWGK1fLlE8HGKUFINYLp63N5n5NZ4TDJrgo8e7CIID3rvYf/O
 EtmL7HzAyztL9Uc6oaXzCK6TgMUtd/ht8OJCDFhjitzQTNjbrfAGz6m+RHnEZyyj
 dtOVK7WBlmuKEANl2vDFGuVVF0+MwJLTlvPx1/b/ejFvnHI/R5Wuk9EH7t/DO4LB
 nCmiwzB6uWMzU3y3vnZG72AYSF5NTKSvnAl5B8U/0rI1MZU+6PehjeviJNx6ddJN
 2YheHBLU4vbBV/LF4XIpaHK2aiHN1ltaKCp8INo3EKhCwpR4ZdlVvnAGU9ocf9+c
 qoaFTOP7zGD9zgPeGjoG
 =wCpY
 -----END PGP SIGNATURE-----

Merge tag 'dm-3.5-changes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

Pull device-mapper updates from Alasdair G Kergon:
 "Improve multipath's retrying mechanism in some defined circumstances
  and provide a simple reserve/release mechanism for userspace tools to
  access thin provisioning metadata while the pool is in use."

* tag 'dm-3.5-changes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
  dm thin: provide userspace access to pool metadata
  dm thin: use slab mempools
  dm mpath: allow ioctls to trigger pg init
  dm mpath: delay retry of bypassed pg
  dm mpath: reduce size of struct multipath
2012-06-02 17:39:40 -07:00
Joe Thornber
cc8394d86f dm thin: provide userspace access to pool metadata
This patch implements two new messages that can be sent to the thin
pool target allowing it to take a snapshot of the _metadata_.  This,
read-only snapshot can be accessed by userland, concurrently with the
live target.

Only one metadata snapshot can be held at a time.  The pool's status
line will give the block location for the current msnap.

Since version 0.1.5 of the userland thin provisioning tools, the
thin_dump program displays the msnap as follows:

    thin_dump -m <msnap root> <metadata dev>

Available here: https://github.com/jthornber/thin-provisioning-tools

Now that userland can access the metadata we can do various things
that have traditionally been kernel side tasks:

     i) Incremental backups.

     By using metadata snapshots we can work out what blocks have
     changed over time.  Combined with data snapshots we can ensure
     the data doesn't change while we back it up.

     A short proof of concept script can be found here:

     https://github.com/jthornber/thinp-test-suite/blob/master/incremental_backup_example.rb

     ii) Migration of thin devices from one pool to another.

     iii) Merging snapshots back into an external origin.

     iv) Asyncronous replication.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-06-03 00:30:01 +01:00
Mike Snitzer
a24c25696b dm thin: use slab mempools
Use dedicated caches prefixed with a "dm_" name rather than relying on
kmalloc mempools backed by generic slab caches so the memory usage of
thin provisioning (and any leaks) can be accounted for independently.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-06-03 00:30:00 +01:00
Mikulas Patocka
35991652ba dm mpath: allow ioctls to trigger pg init
After the failure of a group of paths, any alternative paths that
need initialising do not become available until further I/O is sent to
the device.  Until this has happened, ioctls return -EAGAIN.

With this patch, new paths are made available in response to an ioctl
too.  The processing of the ioctl gets delayed until this has happened.

Instead of returning an error, we submit a work item to kmultipathd
(that will potentially activate the new path) and retry in ten
milliseconds.

Note that the patch doesn't retry an ioctl if the ioctl itself fails due
to a path failure.  Such retries should be handled intelligently by the
code that generated the ioctl in the first place, noting that some SCSI
commands should not be retried because they are not idempotent (XOR write
commands).  For commands that could be retried, there is a danger that
if the device rejected the SCSI command, the path could be errorneously
marked as failed, and the request would be retried on another path which
might fail too.  It can be determined if the failure happens on the
device or on the SCSI controller, but there is no guarantee that all
SCSI drivers set these flags correctly.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-06-03 00:29:58 +01:00
Mike Christie
f220fd4efb dm mpath: delay retry of bypassed pg
If I/O needs retrying and only bypassed priority groups are available,
set the pg_init_delay_retry flag to wait before retrying.

If, for example, the reason for the bypass is that the controller is
getting reset or there is a firmware upgrade happening, retrying right
away would cause a flood of log messages and retries for what could be a
few seconds or even several minutes.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-06-03 00:29:45 +01:00
Mike Snitzer
1fbdd2b3a3 dm mpath: reduce size of struct multipath
Move multipath structure's 'lock' and 'queue_size' members to eliminate
two 4-byte holes.  Also use a bit within a single unsigned int for each
existing flag (saves 8-bytes).  This allows future flags to be added
without each consuming an unsigned int.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-06-03 00:29:43 +01:00
Linus Torvalds
4fc3acf291 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking updates from David Miller:

 1) Make syn floods consume significantly less resources by

    a) Not pre-COW'ing routing metrics for SYN/ACKs
    b) Mirroring the device queue mapping of the SYN for the SYN/ACK
       reply.

    Both from Eric Dumazet.

 2) Fix calculation errors in Byte Queue Limiting, from Hiroaki SHIMODA.

 3) Validate the length requested when building a paged SKB for a
    socket, so we don't overrun the page vector accidently.  From Jason
    Wang.

 4) When netlabel is disabled, we abort all IP option processing when we
    see a CIPSO option.  This isn't the right thing to do, we should
    simply skip over it and continue processing the remaining options
    (if any).  Fix from Paul Moore.

 5) SRIOV fixes for the mellanox driver from Jack orgenstein and Marcel
    Apfelbaum.

 6) 8139cp enables the receiver before the ring address is properly
    programmed, which potentially lets the device crap over random
    memory.  Fix from Jason Wang.

 7) e1000/e1000e fixes for i217 RST handling, and an improper buffer
    address reference in jumbo RX frame processing from Bruce Allan and
    Sebastian Andrzej Siewior, respectively.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  fec_mpc52xx: fix timestamp filtering
  mcs7830: Implement link state detection
  e1000e: fix Rapid Start Technology support for i217
  e1000: look into the page instead of skb->data for e1000_tbi_adjust_stats()
  r8169: call netif_napi_del at errpaths and at driver unload
  tcp: reflect SYN queue_mapping into SYNACK packets
  tcp: do not create inetpeer on SYNACK message
  8139cp/8139too: terminate the eeprom access with the right opmode
  8139cp: set ring address before enabling receiver
  cipso: handle CIPSO options correctly when NetLabel is disabled
  net: sock: validate data_len before allocating skb in sock_alloc_send_pskb()
  bql: Avoid possible inconsistent calculation.
  bql: Avoid unneeded limit decrement.
  bql: Fix POSDIFF() to integer overflow aware.
  net/mlx4_core: Fix obscure mlx4_cmd_box parameter in QUERY_DEV_CAP
  net/mlx4_core: Check port out-of-range before using in mlx4_slave_cap
  net/mlx4_core: Fixes for VF / Guest startup flow
  net/mlx4_en: Fix improper use of "port" parameter in mlx4_en_event
  net/mlx4_core: Fix number of EQs used in ICM initialisation
  net/mlx4_core: Fix the slave_id out-of-range test in mlx4_eq_int
2012-06-02 16:22:51 -07:00
Linus Torvalds
f309532bf3 tty: Revert the tty locking series, it needs more work
This reverts the tty layer change to use per-tty locking, because it's
not correct yet, and fixing it will require some more deep surgery.

The main revert is d29f3ef39be4 ("tty_lock: Localise the lock"), but
there are several smaller commits that built upon it, they also get
reverted here. The list of reverted commits is:

  fde86d310886 - tty: add lockdep annotations
  8f6576ad476b - tty: fix ldisc lock inversion trace
  d3ca8b64b97e - pty: Fix lock inversion
  b1d679afd766 - tty: drop the pty lock during hangup
  abcefe5fc357 - tty/amiserial: Add missing argument for tty_unlock()
  fd11b42e3598 - cris: fix missing tty arg in wait_event_interruptible_tty call
  d29f3ef39be4 - tty_lock: Localise the lock

The revert had a trivial conflict in the 68360serial.c staging driver
that got removed in the meantime.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-02 15:21:43 -07:00
Stephan Gatzka
9ca3cc6f30 fec_mpc52xx: fix timestamp filtering
skb_defer_rx_timestamp was called with a freshly allocated skb but must
be called with rskb instead.

Signed-off-by: Stephan Gatzka <stephan@gatzka.org>
Cc: stable <stable@vger.kernel.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-02 17:09:08 -04:00
Ondrej Zary
b1ff4f96fd mcs7830: Implement link state detection
Add .status callback that detects link state changes.
Tested with MCS7832CV-AA chip (9710:7830, identified as rev.C by the driver).
Fixes https://bugzilla.kernel.org/show_bug.cgi?id=28532

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-02 17:09:08 -04:00
Bruce Allan
6d7407bfba e1000e: fix Rapid Start Technology support for i217
The definition of I217_PROXY_CTRL must use the BM_PHY_REG() macro instead
of the PHY_REG() macro for PHY page 800 register 70 since it is for a PHY
register greater than the maximum allowed by the latter macro, and fix a
typo setting the I217_MEMPWR register in e1000_suspend_workarounds_ich8lan.

Also for clarity, rename a few defines as bit definitions instead of masks.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-02 00:12:33 -07:00
Sebastian Andrzej Siewior
281a8f2462 e1000: look into the page instead of skb->data for e1000_tbi_adjust_stats()
This is another fixup where the data is not transfered into buffer
addressed by skb->data but into a page.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-06-02 00:04:19 -07:00