Commit Graph

427960 Commits

Author SHA1 Message Date
Daniel Vetter 3123fcafe0 drm/i915: catch forcewake reference underruns
Without this the new drv_suspend/forcewake subtest I've created
doesn't result in immediately visible failures.

Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 16:31:37 +01:00
Ben Widawsky ae89f44d13 drm/i915: Actually capture PP_DIR_BASE on error
I have been seeing this for a long time, but ignored it because it's
typically not terribly important. Recently, I really needed this info,
and it was garbage. Proof that I should have fixed it sooner. Originally
wrong from:

commit 6c7a01ec37
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Thu Jan 30 00:19:40 2014 -0800

    drm/i915: Capture PPGTT info on error capture

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 16:31:36 +01:00
Paulo Zanoni 849e39f5d7 drm/i915: properly disable the VDD when disabling the panel
Commit b3064154df tried to revert commit
dff392dbd2, but wasn't complete, which
resulted in regressions on Haswell. So this commit should fix
b3064154df by undoing what it did and
providing an actual complete revert of
dff392dbd2.

Fixes regression introduced by:
commit b3064154df
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date:   Tue Mar 4 00:42:44 2014 +0100
    drm/i915: Don't just say it, actually force edp vdd

Testcase: igt/pm_pc8
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 16:31:35 +01:00
Mika Kuoppala a95f6a0070 drm/i915: Switch to fake context on older gens
We used to have per file descriptor hang stats for the
i915_get_reset_stats_ioctl() and for default context banning.

commit 0eea67eb26
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Fri Dec 6 14:11:19 2013 -0800

    drm/i915: Create a per file_priv default context

made having separate hangstats in file_private redundant
as i915_hw_context already contained hangstats. So

commit c482972a08
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Fri Dec 6 14:11:20 2013 -0800

    drm/i915: Piggy back hangstats off of contexts

consolidated the hangstats and enabled further improvements.

commit 44e2c0705a
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Thu Jan 30 16:01:15 2014 +0200

    drm/i915: Use i915_hw_context to set reset stats

tried to reap full benefits of consolidation but fell short
as we never 'switch' to the fake private context on gens
that don't have hw_contexts, so request->ctx remained NULL
on those.

Fix this by 'switching' to fake context so that when
request is submitted to ring, proper context gets assigned
to it.

Testcase: igt/drv_hangman
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76055
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 16:31:35 +01:00
Daniel Vetter 05efeebd28 drm/i915: Fix up the forcewake timer initialization
This is a regression introduced in

commit 0294ae7b44
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Mar 13 12:00:29 2014 +0000

    drm/i915: Consolidate forcewake resetting to a single function

The reordered setup sequence ended up calling del_timer_sync before
the timer was set up correctly, resulting in endless hilarity when
loading the driver.

Compared to Ben's patch (which moved around the setup_timer call to
sanitize_early) this moves the sanitize_early call around in the
driver load call. This way we avoid calling setup_timer again in the
resume code (where we also call sanitize_early).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Tested-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76242
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 16:31:34 +01:00
Chris Wilson 0294ae7b44 drm/i915: Consolidate forcewake resetting to a single function
We have two paths that try to reset the forcewake registers back to
known good values, with slightly different semantics and levels of
paranoia. Combine the two by passing a parameter to either restore the
forcewake status or to clear our bookkeeping, and raise the paranoia
level to max.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 18:21:58 +01:00
Daniel Vetter b2040f6fed drm/i915: Remove erronous WARN in the vlv pipe crc code
It's been in there since forever, and no one cared. Doesn't put a too
good light onto our bug handling and QA efforts really ...

References: https://bugs.freedesktop.org/attachment.cgi?id=90970
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 17:46:49 +01:00
Chris Wilson 28d85cd367 drm/i915: Reset forcewake before suspend
Now that we regularly defer the forcewake dance to a timer func, it is
likely to fire after we disable the device during suspend. This
generates an oops as we detect inconsistency in the hardware state. So
before suspend, we want to complete the outstanding dance and generally
sanitize the registers before handing back to the BIOS.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 12:26:13 +01:00
Ville Syrjälä 3ddffb7b8a drm/i915: Unbind all vmas whose new cache_level doesn't agree with the neighbours
When we change the cache_level for an object we need to make sure
we don't put differing types of snoopable memory too close to each
other on non-LLC machines.

Currently i915_gem_object_set_cache_level() will stop looking when
it finds just one vma that has such a conflict. Drop the bogus break
statement to make sure it will unbind all vmas which need to be moved
around to avoid the conflict.

I suppose this is a theoretical issue as currently we don't enable
ppgtt on non-LLC machines, so each object can only have one vma.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 12:22:44 +01:00
Ville Syrjälä c5139450c6 drm/i915: Drop WARN_ON(flags) from ppgtt_bind_vma()
We will call ppgtt_bind_vma() with flags != 0, so the WARN_ON(flags)
is bogus. Kill it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 12:22:19 +01:00
Damien Lespiau dc616b89db drm/i915/bdw: The TLB invalidation mechanism has been removed from INSTPM
While wandering in the spec, I noticed that BDW removes those 2 bits
from INSTPM. I couldn't find any direct way to invalidate the TLB (ie
without the ring working already). Maybe someone will be more lucky.

At least, we now know we may be a problem.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-13 03:52:31 +01:00
Chris Wilson 065f2ec2af drm/i915: Show cursor status in debugfs/i915_display_info
I have the occasional absent cursor on i845 and I want to know why.
This should help by revealing the last known cursor state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-12 16:16:37 +01:00
Ville Syrjälä 8ac36ec1e3 drm/i915: Reduce the time we hold struct mutex in intel_pipe_set_base()
We don't need to hold struct_mutex all through intel_pipe_set_base(),
just need to hold it while pinning/unpinning the buffers.

So reduce the struct_mutext usage in intel_pipe_set_base() just like we
did for the sprite code in:
 commit 82284b6bec
 Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
 Date:   Tue Oct 1 18:02:12 2013 +0300

    drm/i915: Reduce the time we hold struct mutex in sprite update_plane code

The FBC and PSR locking is still entirely fubar. That stuff was
previouly done while holding struct_mutex, so leave it there for now.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-12 16:13:31 +01:00
Naresh Kumar Kachhi 02f6a1e750 drm/i915: warn if ring is active before sync flush
Based on Bspec the command parser must be stopped prior to
issuing sync flush. This should be done by the caller of
intel_ring_setup_status_page. Patch adds a warning if it is
not done.

v2: rebased based on new patch (wait for ring to become idle)

Signed-off-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-12 16:10:55 +01:00
Naresh Kumar Kachhi e9fea5747d drm/i915: wait for rings to become idle once disabled
make sure we wait for rings to become idle once they are
disabled. In case of timeout print an error message

Signed-off-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
[danvet: Frob patch as suggested by Chris.]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-12 16:04:19 +01:00
Naresh Kumar Kachhi a51435a313 drm/i915: disable rings before HW status page setup
Rings should be idle before issuing sync_flush
(in intel_ring_setup_status_page). This patch moves the ring
disabling before doing the HW status page setup.

Signed-off-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-12 16:00:41 +01:00
Ben Widawsky 5a6c93fe80 drm/i915: Correct PPGTT total size
Our code allows have a PPGTT that is smaller than the maximum size for
GEN6-GEN7. Though I don't think this actually ever occurs, the code may
as well work properly and more importantly look correct by using the
variable size instead of the HW max.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-11 21:06:08 +01:00
Ben Widawsky 8407bb9129 drm/i915/bdw: Use scratch page table for GEN8 PPGTT
I'm not clear if the hardware is still subject to the same prefetching
issues that made us use a scratch page in the first place. In either
case, we're using garbage with the current code (we will end up using
offset 0).

This may be the cause of our current gem_cpu_reloc regression with
PPGTT. I cannot test it at the moment.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-11 21:05:49 +01:00
Imre Deak 6c7fba04ec drm/i915: fix typo in display IRQ mask when disabling IRQs
Introduced in
commit e0e33f8ff6f0b6d286afc314802be4993341bd47
Author: Imre Deak <imre.deak@intel.com>
Date:   Tue Mar 4 19:23:07 2014 +0200

The impact was luckily minimal, due to the extra check we do against a
software pipestat IRQ mask.

Caught by Fengguang's 0-day tester.

Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:49:49 +01:00
Ville Syrjälä c6f1495d4c drm/i915: Allow HDMI+HDMI cloning on g4x
BSpec is a bit unclear whether HDMI+HDMI cloning should work on g4x.
Tests on real hardware say that it does. Since g4x can't send
infoframes to more than one HDMI port anyway, we don't lose anything
by allow it.

For PCH platforms BSpec explicitly forbids HDMI+HDMI cloning.

Whether HDMI+HDMI cloning might also work on VLV is a bit unclear, but
since we'd at least lose the capability of sending infoframes to more
than one cloned HDMI port, it doesn't seem like a good idea to allow it.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73850
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:48:20 +01:00
Ville Syrjälä 301ea74a57 drm/i915: Allow HDMI+VGA cloning
HDMI+VGA cloning should be supported on all platforms. The only real
obstacle is the 1.5x clock adjustment for 12bpc HDMI, but that is now
taken care of, so we can allow HDMI+VGA cloning.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73850
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:48:08 +01:00
Ville Syrjälä 7180063295 drm/i915: Don't use HDMI 12bpc when cloning with other encoder types
When cloning HDMI with other output types, we can't use 12bpc since the
clocks for the other encoder types would be off. So have
intel_hdmi_compute_config() check if there are other encoders besides
HDMI being fed from the same pipe, and if so, pick 8bpc insted if 12bpc.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:46:26 +01:00
Daniel Vetter e8e6e6012d Linux 3.14-rc6
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Merge tag 'v3.14-rc6' into drm-intel-next-queued

Linux 3.14-rc6

I need the hdmi/dvi-dual link fixes in 3.14 to avoid ugly conflicts
when merging Ville's new hdmi cloning support into my -next tree

Conflicts:
	drivers/gpu/drm/i915/Makefile
	drivers/gpu/drm/i915/intel_dp.c

Makefile cleanup conflicts with an acpi build fix, intel_dp.c is
trivial.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:43:46 +01:00
Ville Syrjälä bc079e8b16 drm/i915: Make encoder cloning more flexible
Currently we allow encoders to indicate whether they can be part of a
cloned set with just one flag. That's not flexible enough to describe
the actual hardware capabilities. Instead make it a bitmask of encoder
types with which the current encoder can be cloned.

For now we set the bitmask to allow DVO+DVO and DVO+VGA, which should
match what the old boolean flag allowed. We will add some more cloning
options in the future.

Note that this patch also removes the encoder.possible_clones setting
from encoder setup code - we compute this dynamically.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
[danvet: Add Ville's explanation why removing the encoder
possible_clones is save.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 21:33:26 +01:00
Daniel Vetter 842f1c8b76 drm/i915: move dev_priv->suspend around
When adding new gunk, _always_ think of a good place. Start/end
usually just means that this didn't happen, and on top of that results
in needless conflicts with other patches doing the same.

Introduced in

commit 62d5d69b49
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Tue Feb 25 17:11:28 2014 +0200

    drm/i915: Add suspend count to error state

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 10:01:44 +01:00
Chris Wilson ff2652ea46 drm/i915: Avoid requesting a zero-sized stolen object
The stolen allocator objects loudly if the caller requests a zero-sized
object. This is a useful verbose check as in most cases the request
should have been pruned much early. Here we just want to silently return
before attempting the allocation.

Regression from
commit 484b41dd70
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:55 2014 -0800

    drm/i915: remove early fb allocation dependency on CONFIG_FB v2

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75963
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 09:18:15 +01:00
Chris Wilson d1a59868ef drm/i915: Prevent use-after-free of inherited framebuffer
During KMS takeover, we try to capture the current configuration and
preserve it across our initialisation. For a variety of reasons, we may
fail this, for example if the current mode was using the legacy VGA
plane. Under such circumstances, we discard the fb in the plane config
and tried to find a matching fb on another CRTC. This obviously also
failed, leaving the plane config fb dangling, pointing to the freed block.

Regression from
commit 484b41dd70
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Fri Mar 7 08:57:55 2014 -0800

    drm/i915: remove early fb allocation dependency on CONFIG_FB v2

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75963
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-10 09:18:10 +01:00
Linus Torvalds fa389e2202 Linux 3.14-rc6 2014-03-09 19:41:57 -07:00
Linus Torvalds 79e615420c ARM: SoC fixes for 3.14-rc
A collection of fixes for ARM platforms. A little large due to us missing to
 do one last week, but there's nothing in particular here that is in itself
 large and scary.
 
 Mostly a handful of smaller fixes all over the place. The majority is made
 up of fixes for OMAP, but there are a few for others as well. In particular,
 there was a decision to rename a binding for the Broadcom pinctrl block that
 we need to go in before the final release since we then treat it as ABI.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from from Olof Johansson:
 "A collection of fixes for ARM platforms.  A little large due to us
  missing to do one last week, but there's nothing in particular here
  that is in itself large and scary.

  Mostly a handful of smaller fixes all over the place.  The majority is
  made up of fixes for OMAP, but there are a few for others as well.  In
  particular, there was a decision to rename a binding for the Broadcom
  pinctrl block that we need to go in before the final release since we
  then treat it as ABI"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: tegra: add LED options back into tegra_defconfig
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match
  ARM: OMAP3: Fix pinctrl interrupts for core2
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
  ARM: OMAP2+: Add support for thumb mode on DT booted N900
  ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
  ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
  ARM: DRA7: hwmod data: correct the sysc data for spinlock
  ARM: OMAP5: PRM: Fix reboot handling
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types
2014-03-09 19:27:31 -07:00
Linus Torvalds fe9ea91cde NFS client bugfixes for Linux 3.14
Highlights include:
 
 - Fix another nfs4_sequence corruptor in RELEASE_LOCKOWNER
 - Fix an Oopsable delegation callback race
 - Fix another bad stateid infinite loop
 - Fail the data server I/O is the stateid represents a lost lock
 - Fix an Oopsable sunrpc trace event
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Merge tag 'nfs-for-3.14-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Fix another nfs4_sequence corruptor in RELEASE_LOCKOWNER
   - Fix an Oopsable delegation callback race
   - Fix another bad stateid infinite loop
   - Fail the data server I/O is the stateid represents a lost lock
   - Fix an Oopsable sunrpc trace event"

* tag 'nfs-for-3.14-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: Fix oops when trace sunrpc_task events in nfs client
  NFSv4: Fail the truncate() if the lock/open stateid is invalid
  NFSv4.1 Fail data server I/O if stateid represents a lost lock
  NFSv4: Fix the return value of nfs4_select_rw_stateid
  NFSv4: nfs4_stateid_is_current should return 'true' for an invalid stateid
  NFS: Fix a delegation callback race
  NFSv4: Fix another nfs4_sequence corruptor
2014-03-09 19:17:39 -07:00
Linus Torvalds cf8bf7cd13 USB fixes for 3.14-rc6
Here are 4 USB fixes for your current tree.
 
 Two of them are reverts to hopefully resolve the nasty XHCI regressions
 we have been having on some types of devices.  The other two are quirks
 for some Logitech video devices.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are 4 USB fixes for your current tree.

  Two of them are reverts to hopefully resolve the nasty XHCI
  regressions we have been having on some types of devices.  The other
  two are quirks for some Logitech video devices"

* tag 'usb-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "USBNET: ax88179_178a: enable tso if usb host supports sg dma"
  Revert "xhci 1.0: Limit arbitrarily-aligned scatter gather."
  usb: Make DELAY_INIT quirk wait 100ms between Get Configuration requests
  usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e
2014-03-09 18:59:14 -07:00
Linus Torvalds a491ce72f8 Staging driver tree fix for 3.14-rc6
Here is a single staging driver fix for your tree.
 
 It resolves an issue with arbritary writes to memory if a specific
 driver is loaded.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver tree fix from Greg KH:
 "Here is a single staging driver fix for your tree.

  It resolves an issue with arbritary writes to memory if a specific
  driver is loaded"

* tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/cxt1e1/linux.c: Correct arbitrary memory write in c4_ioctl()
2014-03-09 18:58:27 -07:00
David Howells 979e0d7465 KEYS: Make the keyring cycle detector ignore other keyrings of the same name
This fixes CVE-2014-0102.

The following command sequence produces an oops:

	keyctl new_session
	i=`keyctl newring _ses @s`
	keyctl link @s $i

The problem is that search_nested_keyrings() sees two keyrings that have
matching type and description, so keyring_compare_object() returns true.
s_n_k() then passes the key to the iterator function -
keyring_detect_cycle_iterator() - which *should* check to see whether this is
the keyring of interest, not just one with the same name.

Because assoc_array_find() will return one and only one match, I assumed that
the iterator function would only see an exact match or never be called - but
the iterator isn't only called from assoc_array_find()...

The oops looks something like this:

	kernel BUG at /data/fs/linux-2.6-fscache/security/keys/keyring.c:1003!
	invalid opcode: 0000 [#1] SMP
	...
	RIP: keyring_detect_cycle_iterator+0xe/0x1f
	...
	Call Trace:
	  search_nested_keyrings+0x76/0x2aa
	  __key_link_check_live_key+0x50/0x5f
	  key_link+0x4e/0x85
	  keyctl_keyring_link+0x60/0x81
	  SyS_keyctl+0x65/0xe4
	  tracesys+0xdd/0xe2

The fix is to make keyring_detect_cycle_iterator() check that the key it
has is the key it was actually looking for rather than calling BUG_ON().

A testcase has been included in the keyutils testsuite for this:

	http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=891f3365d07f1996778ade0e3428f01878a1790b

Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-09 18:57:18 -07:00
Linus Torvalds 1dc3217dad Merge branch 'for-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal fixes from Zhang Rui:
 "Specifics:

   - Update the help text of INT3403 Thermal driver, which was not
     friendly to users.  From Zhang Rui.

   - The "type" sysfs attribute of x86_pkg_temp_thermal registered
     thermal zones includes an instance number, which makes the
     thermal-to-hwmon bridge fails to group them all in a single hwmon
     device.  Fixed by Jean Delvare.

   - The hwmon device registered by x86_pkg_temp_thermal driver is
     redundant because the temperature value reported by
     x86_pkg_temp_thermal is already reported by the coretemp driver.
     Fixed by Jean Delvare.

   - Fix a problem that the cooling device can not be updated properly
     if it is initialized at max cooling state.  From Ni Wade.

   - Fix a problem that OF registered thermal zones are running without
     thermal governors.  From Zhang Rui.

   - Commit beeb5a1e0e ("thermal: rcar-thermal: Enable driver
     compilation with COMPILE_TEST") broke build on archs wihout io
     memory.  Thus make it depend on HAS_IOMEM to bypass build failures.
     Fixed by Richard Weinberger"

* 'for-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  Thermal: thermal zone governor fix
  Thermal: Allow first update of cooling device state
  thermal,rcar_thermal: Add dependency on HAS_IOMEM
  x86_pkg_temp_thermal: Fix the thermal zone type
  x86_pkg_temp_thermal: Do not expose as a hwmon device
  Thermal: update INT3404 thermal driver help text
2014-03-09 13:52:53 -07:00
Linus Torvalds 4aa41ba7f7 spi: Fixes for v3.14
A scattering of driver specific fixes here.  The fixes from Axel cover
 bitrot in apparently unmaintained drivers, the at79 bug is fixing a
 glitch on /CS during initialisation of some devices which could break
 some slaves and the remainder are fixes for recently introduced bugs
 from the past release cycle or so.
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Merge tag 'spi-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A scattering of driver specific fixes here.

  The fixes from Axel cover bitrot in apparently unmaintained drivers,
  the at79 bug is fixing a glitch on /CS during initialisation of some
  devices which could break some slaves and the remainder are fixes for
  recently introduced bugs from the past release cycle or so"

* tag 'spi-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: atmel: add missing spi_master_{resume,suspend} calls to PM callbacks
  spi: coldfire-qspi: Fix getting correct address for *mcfqspi
  spi: fsl-dspi: Fix getting correct address for master
  spi: spi-ath79: fix initial GPIO CS line setup
  spi: spi-imx: spi_imx_remove: do not disable disabled clocks
  spi-topcliff-pch: Fix probing when DMA mode is used
  spi/topcliff-pch: Fix DMA channel
2014-03-09 13:51:47 -07:00
Linus Torvalds 66a523db70 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "This series addresses a number of outstanding issues wrt to active I/O
  shutdown using iser-target.  This includes:

   - Fix a long standing tpg_state bug where a tpg could be referenced
     during explicit shutdown (v3.1+ stable)
   - Use list_del_init for iscsi_cmd->i_conn_node so list_empty checks
     work as expected (v3.10+ stable)
   - Fix a isert_conn->state related hung task bug + ensure outstanding
     I/O completes during session shutdown.  (v3.10+ stable)
   - Fix isert_conn->post_send_buf_count accounting for RDMA READ/WRITEs
     (v3.10+ stable)
   - Ignore FRWR completions during active I/O shutdown (v3.12+ stable)
   - Fix command leakage for interrupt coalescing during active I/O
     shutdown (v3.13+ stable)

  Also included is another DIF emulation fix from Sagi specific to
  v3.14-rc code"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  Target/sbc: Fix sbc_copy_prot for offset scatters
  iser-target: Fix command leak for tx_desc->comp_llnode_batch
  iser-target: Ignore completions for FRWRs in isert_cq_tx_work
  iser-target: Fix post_send_buf_count for RDMA READ/WRITE
  iscsi/iser-target: Fix isert_conn->state hung shutdown issues
  iscsi/iser-target: Use list_del_init for ->i_conn_node
  iscsi-target: Fix iscsit_get_tpg_from_np tpg_state bug
2014-03-09 13:50:14 -07:00
Rafael J. Wysocki 4c7b70406e Revert "ACPI / sleep: pm_power_off needs more sanity checks to be installed"
Revert commit 3130497f5b ("ACPI / sleep: pm_power_off needs more
sanity checks to be installed") that breaks power ACPI power off on a
lot of systems, because it checks wrong registers.

Fixes: 3130497f5b ("ACPI / sleep: pm_power_off needs more sanity checks to be installed")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-09 13:48:36 -07:00
Olof Johansson 10554647b4 Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.
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Merge tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:

Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.

* tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
  ARM: dts: omap3-igep: fix boot fail due wrong compatible match

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:56:31 -08:00
Olof Johansson 4058f76247 Rename pinctrl dt binding to restore consistency with
other bcm mobile bindings.
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Merge tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351 into fixes

Merge 'bcm pinctrl rename' From Christin Daudt:

Rename pinctrl dt binding to restore consistency with other bcm mobile
bindings.

* tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351:
  pinctrl: Rename Broadcom Capri pinctrl binding
  pinctrl: refer to updated dt binding string.
  Update dtsi with new pinctrl compatible string
  + Linux 3.14-rc4

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:11:16 -08:00
Olof Johansson 614cd4a4ac Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
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Merge tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux into fixes

Allwinner fixes from Maxime Ripard:

Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14

* tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux:
  ARM: sunxi: dt: Change the touchscreen compatibles
  ARM: sun7i: dt: Fix interrupt trigger types

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 22:09:23 -08:00
Linus Torvalds ca62eec4e5 Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
 "Two cpuset locking fixes from Li.  Both tagged for -stable"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: fix a race condition in __cpuset_node_allowed_softwall()
  cpuset: fix a locking issue in cpuset_migrate_mm()
2014-03-08 11:57:38 -08:00
Linus Torvalds 15b04859a2 Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "Just a couple patches blacklisting more broken devices"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8 (2BA30001)
  libata: disable queued TRIM for Crucial M500 mSATA SSDs
2014-03-08 11:52:45 -08:00
Linus Torvalds 9f93585fdf Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
 "This pull request contains a workqueue usage fix for firewire.

  For quite a long time now, workqueue only treats two work items
  identical iff both their addresses and callbacks match.  This is to
  avoid introducing false dependency through the work item being
  recycled while being executed.  This changes non-reentrancy guarantee
  for the users of PREPARE[_DELAYED]_WORK() - if the function changes,
  reentrancy isn't guaranteed against the previous instance.  Firewire
  depended on such nonreentrancy guarantee.

  This is fixed by doing the work item multiplexing from firewire proper
  while keeping the work function unchanged"

* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  firewire: don't use PREPARE_DELAYED_WORK
2014-03-08 11:51:13 -08:00
Linus Torvalds 85ec688c16 Fix a use-after-free regression since v3.4 and an initialization
regression since v3.10.
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Merge tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire fixes from Stefan Richter:
 "Fix a use-after-free regression since v3.4 and an initialization
  regression since v3.10"

* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: fix probe failure with Agere/LSI controllers
  firewire: net: fix use after free
2014-03-08 10:52:43 -08:00
Linus Torvalds 7bffc48177 Single fix for a clock driver merged in 3.14-rc1. Without this fix the
CPU frequency cannot be scaled.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clk driver fix from Mike Turquette:
 "Single fix for a clock driver merged in 3.14-rc1.  Without this fix
  the CPU frequency cannot be scaled"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: shmobile: rcar-gen2: Use kick bit to allow Z clock frequency change
2014-03-08 10:51:30 -08:00
Linus Torvalds abfba60c7a ACPI and power management fixes for 3.14-rc6
- ACPI tables in some BIOSes list device resources with size equal
    to 0, which doesn't make sense, so we should ignore them, but
    instead we try to use them and mangle things completely.  Fix
    from Zhang Rui.
 
  - Several models of Samsung laptops accumulate EC events when they
    are in sleep states which leads to EC buffer overflows that prevent
    new events from being signaled after system resume or reboot.  This
    has been affecting many users for quite a while and may be addressed
    by clearing the EC buffer during system resume and system startup on
    those machines.  From Kieran Clancy.
 
  - If the ACPI sleep control and status registers are not present
    (which  happens if the Hardware Reduced ACPI mode bit is set in
    the ACPI tables, but also may result from BIOS bugs), we should
    not try to use ACPI to power off the system and ACPI S5 should
    not be listed as supported.  Fix from Aubrey Li.
 
  - There's a race condition in cpufreq_get() that leads to a kernel
    crash if that function is called at a wrong time.  Fix from
    Aaron Plattner.
 
  - cpufreq policy objects have to be initialized entirely before
    they are first accessed by their users which isn't the case
    currently and that potentially leads to various kinds of
    breakage that is difficult to debug.  Fix from Viresh Kumar.
 
  - Locking is missing in __cpufreq_add_dev() which leads to a race
    condition that may trigger a kernel crash.  Fix from Viresh Kumar.
 
 /
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Merge tag 'pm+acpi-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 - ACPI tables in some BIOSes list device resources with size equal to
   0, which doesn't make sense, so we should ignore them, but instead we
   try to use them and mangle things completely.  Fix from Zhang Rui.

 - Several models of Samsung laptops accumulate EC events when they are
   in sleep states which leads to EC buffer overflows that prevent new
   events from being signaled after system resume or reboot.  This has
   been affecting many users for quite a while and may be addressed by
   clearing the EC buffer during system resume and system startup on
   those machines.  From Kieran Clancy.

 - If the ACPI sleep control and status registers are not present (which
   happens if the Hardware Reduced ACPI mode bit is set in the ACPI
   tables, but also may result from BIOS bugs), we should not try to use
   ACPI to power off the system and ACPI S5 should not be listed as
   supported.  Fix from Aubrey Li.

 - There's a race condition in cpufreq_get() that leads to a kernel
   crash if that function is called at a wrong time.  Fix from Aaron
   Plattner.

 - cpufreq policy objects have to be initialized entirely before they
   are first accessed by their users which isn't the case currently and
   that potentially leads to various kinds of breakage that is difficult
   to debug.  Fix from Viresh Kumar.

 - Locking is missing in __cpufreq_add_dev() which leads to a race
   condition that may trigger a kernel crash.  Fix from Viresh Kumar.

* tag 'pm+acpi-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / EC: Clear stale EC events on Samsung systems
  cpufreq: Initialize governor for a new policy under policy->rwsem
  cpufreq: Initialize policy before making it available for others to use
  cpufreq: use cpufreq_cpu_get() to avoid cpufreq_get() race conditions
  ACPI / sleep: pm_power_off needs more sanity checks to be installed
  ACPI / resources: ignore invalid ACPI device resources
2014-03-08 09:17:27 -08:00
Jesse Barnes 484b41dd70 drm/i915: remove early fb allocation dependency on CONFIG_FB v2
By stuffing the fb allocation into the crtc, we get mode set lifetime
refcounting for free, but have to handle the initial pin & fence
slightly differently.  It also means we can move the shared fb handling
into the core rather than leaving it out in the fbdev code.

v2: null out crtc->fb on error (Daniel)
    take fbdev fb ref and remove unused error path (Daniel)

Requested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-08 11:31:58 +01:00
Jesse Barnes d978ef1445 drm/i915: Wrap the preallocated BIOS framebuffer and preserve for KMS fbcon v12
Retrieve current framebuffer config info from the regs and create an fb
object for the buffer the BIOS or boot loader left us.  This should
allow for smooth transitions to userspace apps once we finish the
initial configuration construction.

v2: check for non-native modes and adjust (Jesse)
    fixup aperture and cmap frees (Imre)
    use unlocked unref if init_bios fails (Jesse)
    fix curly brace around DSPADDR check (Imre)
    comment failure path for pin_and_fence (Imre)
v3: fixup fixup of aperture frees (Chris)
v4: update to current bits (locking & pin_and_fence hack) (Jesse)
v5: move fb config fetch to display code (Jesse)
    re-order hw state readout on initial load to suit fb inherit (Jesse)
    re-add pin_and_fence in fbdev code to make sure we refcount properly (Je
v6: rename to plane_config (Daniel)
    check for valid object when initializing BIOS fb (Jesse)
    split from plane_config readout and other display changes (Jesse)
    drop use_bios_fb option (Chris)
    update comments (Jesse)
    rework fbdev_init_bios for clarity (Jesse)
    drop fb obj ref under lock (Chris)
v7: use fb object from plane_config instead (Ville)
    take ref on fb object (Jesse)
v8: put under i915_fastboot option (Jesse)
    fix fb ptr checking (Jesse)
    inform drm_fb_helper if we fail to enable a connector (Jesse)
    drop unnecessary enabled[] modifications in failure cases (Chris)
    split from BIOS connector config readout (Daniel)
    don't memset the fb buffer if preallocated (Chris)
    alloc ifbdev up front and pass to init_bios (Chris)
    check for bad ifbdev in restore_mode too (Chris)
v9: fix up !fastboot bpp setting (Jesse)
    fix up !fastboot helper alloc (Jesse)
    make sure BIOS fb is sufficient for biggest active pipe (Jesse)
v10:fix up size calculation for proposed fbs (Chris)
    go back to two pass pipe fb assignment (Chris)
    add warning for active pipes w/o fbs (Chris)
    clean up num_pipes checks in fbdev_init and fbdev_restore_mode (Chris)
    move i915.fastboot into fbdev_init (Chris)
v11:make BIOS connector config usage unconditional (Daniel)
v12:fix up fb vs pipe size checking (Chris)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-08 11:31:52 +01:00
Jesse Barnes 4c6baa595f drm/i915: get_plane_config support for ILK+ v3
This should allow BIOS fb inheritance to work on ILK+ machines too.

v2: handle tiled BIOS fbs (Kristian)
    split out common bits (Jesse)
v3: alloc fb obj out in _init

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-08 11:31:46 +01:00
Jesse Barnes 1ad292b51e drm/i915: get_plane_config for i9xx v13
Read out the current plane configuration at init time into a new
plane_config structure.  This allows us to track any existing
framebuffers attached to the plane and potentially re-use them in our
fbdev code for a smooth handoff.

v2: update for new pitch_for_width function (Jesse)
    comment how get_plane_config works with shared fbs (Jesse)
v3: s/ARGB/XRGB (Ville)
    use pipesrc width/height (Ville)
    fix fourcc comment (Bob)
    use drm_format_plane_cpp (Ville)
v4: use fb for tracking fb data object (Ville)
v5: fix up gen2 pitch limits (Ville)
v6: read out stride as well (Daniel)
v7: split out init ordering changes (Daniel)
    don't fetch config if !CONFIG_FB
v8: use proper height in get_plane_config (Chris)
v9: fix CONFIG_FB check for modular configs (Jani)
v10: add comment about stolen allocation stomping
v11: drop hw state readout hunk (Daniel)
v12: handle tiled BIOS fbs (Kristian)
     pull out common bits (Jesse)
v13: move fb obj alloc out to _init

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-08 11:31:41 +01:00