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413919 commits

Author SHA1 Message Date
Dave Airlie e6c3dcdea6 Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev into drm-next
rcar misc changes.

* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
  drm/rcar-du: Add support for the r8a7791 DU
  drm/rcar-du: Add LVDS_LANES quirk
  drm/rcar-du: Split features and quirks
  drm/rcar-du: Update plane pitch in .mode_set_base() operation
  drm/rcar-du: Don't cast crtc to rcrtc twice in the same function
  drm/rcar-du: fix return value check in rcar_du_lvdsenc_get_resources()
2013-12-23 10:42:36 +10:00
Todd Previte fe3c703c3d drm/dp: Clarify automated test constant and add constant for FAUX test pattern
- DP_TEST_LINK_PATTERN is ambiguous, rename to DP_TEST_LINK_VIDEO_PATTERN to clarify
  - Added DP_TEST_LINK_FAUX_PATTERN to support automated testing of Fast AUX

Signed-off-by: Todd Previte <tprevite@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:47:43 +10:00
Dan Carpenter d016da589c drm: use memdup_user() as a cleanup
drivers/gpu/drm/r128/r128_state.c:1014:10-17: WARNING opportunity for memdup_user
/c/kernel-tests/src/cocci/drivers/gpu/drm/r128/r128_state.c:1029:9-16: WARNING opportunity for memdup_user
/c/kernel-tests/src/cocci/drivers/gpu/drm/r128/r128_state.c:904:10-17: WARNING opportunity for memdup_user
/c/kernel-tests/src/cocci/drivers/gpu/drm/r128/r128_state.c:914:9-16: WARNING opportunity for memdup_user

 Use memdup_user rather than duplicating its implementation
 This is a little bit restricted to reduce false positives

Generated by: coccinelle/api/memdup_user.cocci

CC: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:44:01 +10:00
Daniel Vetter 99c09e745d drm: remove dev->vma_count
This is just used for a debugfs file, and we can easily reconstruct
this number by just walking the list twice. Which isn't really bad for
a debugfs file anyway.

So let's rip this out.

There's the other issue that the dev->vmalist itself is a bit useless,
since that can be reconstructed with all the memory mapping
information from proc. But remove that is a different topic entirely.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:43:29 +10:00
Daniel Vetter 5952fba501 drm: Kill file_priv->ioctl_count tracking
It's racy, and it's only used in debugfs. There are simpler ways to
know whether something is going on (like looking at dmesg with full
debugging enabled). And they're all much more useful.

So let's just rip this out.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:42:13 +10:00
Daniel Vetter 43d1337cbe drm: rip out dev->ioctl_count tracking
Now dev->ioctl_count tries to prevent the device from disappearing if
it's still in use. And if we'd actually need this code it would be
hopelessly racy and broken.

But luckily the vfs already takes care of this. So we can just rip it
out.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:41:55 +10:00
Daniel Vetter b8673b648a drm/gma500: Remove dead code
This has the nice advantage that we'll get rid of a DRM_WAIT_ON user
for free.

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:36:06 +10:00
Daniel Vetter 4cda878b12 drm: Kill DRM_SUSER
Checking directly for the right capability is simpler. Also this rids
us of a few places that use DRM_CURRENTPID.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:35:45 +10:00
Daniel Vetter 85b2331b34 drm: Kill DRM_*MEMORYBARRIER
The real linux interfaces are soooo much easier on the eyes ...

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:35:21 +10:00
Daniel Vetter 1d6ac185c3 drm: Kill DRM_COPY_(TO|FROM)_USER
Less yelling ftw!

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:35:01 +10:00
Daniel Vetter 57ed0f7b43 drm: Kill DRM_WAKUP and DRM_INIT_WAITQUEUE
Less yelling ftw!

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:34:13 +10:00
Daniel Vetter e9f0d76f3b drm: Kill DRM_IRQ_ARGS
I've killed them a long time ago in drm/i915, let's get rid of this
remnant of shared drm core days for good.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:33:46 +10:00
Daniel Vetter bfd8303af0 drm: Kill DRM_HZ
We don't have any userspace interfaces that use HZ as a time unit, so
having our own DRM define is useless.

Remove this remnant from the shared drm core days.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:33:24 +10:00
Daniel Vetter d2e546b855 drm: rip out DRM_AGP_MEM and DRM_AGP_KERN
The <linux/agp_backend.h> header provides dummy functions and
fallbacks, so no need for screaming macros.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:32:55 +10:00
Daniel Vetter 8a5a80081a drm: remove global_mutex locking around agp_init
David Herrmann dutifully moved this locking along when moving the
agp_init call out of the generic drm_dev_register into the pci
specific load helpers.

But afaict there's no need and the reason for that locking has been
purely a historical accident - we need the lock around the driver dev
node registration to paper over the midlayer init races, and the agp
init simply ended up in there. The real fix for all this is of course
to delay the dev (and sysfs/debugfs) interface registration until
everything is fully set up.

Until then stop the cargo-cult locking from spreading and remove the
locking.

Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:27:29 +10:00
Dave Airlie d5e41ad3b9 drm/agpsupport: use kzalloc instead of kmalloc/memset
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:27:06 +10:00
Daniel Vetter 4efafebe70 drm: kill the ->agp_destroy callback
Call drm_pci_agp_destroy directly, there's no point in the
indirection. Long term we want to shuffle this into each driver's
unload logic, but that needs cleared-up drm lifetime rules first.

v2: Add a dummy function for !CONFIG_PCI, spotted my David Herrmann.

v3: Fixup for the coding style police.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:24:39 +10:00
Daniel Vetter d6e4b28b60 drm: inline drm_agp_destroy
Wrapping a kfree is pointless.

v2: Add a comment to the kerneldoc for drm_agp_init to explain where
the kfree happens as requested by David. Note that for modeset drivers
agp cleanup is fairly complicated anyway: The drm_agp_clear is a noop
and drivers must call drm_agp_release on their own. Which they all
seem to do properly.

Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:23:46 +10:00
Daniel Vetter 2c695fa044 drm: remove agp_init() bus callback
The PCI bus helper is the only user of it. Call it directly before
device-registration to get rid of the callback.

Note that all drm_agp_*() calls are locked with the drm-global-mutex so we
need to explicitly lock it during initialization. It's not really clear
why it's needed, but lets be safe.

v2: Rebase on top of the agp_init interface change.

v3: Remove the rebase-fail where I've accidentally killed the ->irq_by_busid
callback a bit too early.

Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:22:30 +10:00
Daniel Vetter d9906753bb drm: rip out drm_core_has_AGP
Most place actually want to just check for dev->agp (most do, but a
few don't so this fixes a few potential NULL derefs). The only
exception is the agp init code which should check for the AGP driver
feature flag.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:20:04 +10:00
Daniel Vetter 8da79ccd1a drm: ->agp_init can't fail
Thanks to the removal of REQUIRE_AGP we can use a void return value
and shed a bit of complexity.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:18:12 +10:00
Daniel Vetter 24986ee069 drm: kill DRIVER_REQUIRE_AGP
Only the two intel drivers need this and they can easily check for
working agp support in their driver ->load callbacks.

This is the only reason why agp initialization could fail, so allows
us to rip out a bit of error handling code in the next patch.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:17:53 +10:00
Wei Yongjun 5ec467a803 drm/rcar-du: Fix return value check in rcar_du_lvdsenc_get_resources()
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR(). Also remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
[Remove the unneeded mem == NULL check]
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:10:48 +10:00
Thierry Reding 6b27f7f0e9 drm/dp: Use AUX constants from specification
The current values seem to be defined in a format that's specific to the
i915, gma500 and radeon drivers. To make this more generally useful, use
the values as defined in the specification.

While at it, prefix the constants with DP_ for improved namespacing.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:08:51 +10:00
Daniel Vetter 05f51722a1 drm/bufs: remove handling of _DRM_GEM mappings
Gone with the new gem vma offset manager from David.

We can also ditch the uapi header definition from the enum since
userspace never used this. It ended up in there purely for historical
reasons (for reusing the old drm mmap code essentially), not because
userspace ever needed it.

Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:08:42 +10:00
Daniel Vetter b3f2333de8 drm: restrict the device list for shadow attached drivers
There's really no need for the drm core to keep a list of all
devices of a given driver - the linux device model keeps perfect
track of this already for us.

The exception is old legacy ums drivers using pci shadow attaching.
So rename the lists to make the use case clearer and rip out everything
else.

v2: Rebase on top of David Herrmann's drm device register changes.
Also drop the bogus dev_set_drvdata for platform drivers that somehow
crept into the original version - drivers really should be in full
control of that field.

v3: Initialize driver->legacy_dev_list outside of the loop, spotted by
David Herrmann.

v4: Rebase on top of the newly created host1x drm_bus for tegra.

Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:08:36 +10:00
Daniel Vetter e2577d455a drm: rip out drm_platform_exit
This very much looks like a remnant of the old legady ums shadow
attach days. Now with the last users gone we can rip it out since
we won't ever support an ums drm driver again.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:06:22 +10:00
Daniel Vetter 0ff420f7f5 drm/msm: call drm_put_dev directly in ->remove
The drvdata pointer is already assigned to something useful.

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:49 +10:00
Daniel Vetter 50fb3c3b2e drm/armada: directly call drm_put_dev in ->remove
Again no apparent user of the driver data field.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:48 +10:00
Daniel Vetter 405bea7a9e drm/shmob: call drm_put_dev directly from ->remove hook
We need to chase one pointer here.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:46 +10:00
Daniel Vetter fd3c025314 drm/omap: call drm_put_dev directly in ->remove
Again omap already sets the driver data pointer to the drm_device.

Also drop the driver unregister call, that should be (and already is)
done in the module unload hook.

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:44 +10:00
Daniel Vetter c84b435657 drm/tilcdc: call drm_put_dev directly from ->remove
tilcdc already stores the drm_device in the driver data pointer. So
use that.

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:43 +10:00
Daniel Vetter 9076dccfc5 drm/imx: directly call drm_put_dev in ->remove
Again no apparent user of the driver data field.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:41 +10:00
Daniel Vetter a9a346d6a8 drm/exynos: call drm_put_dev directly from ->remove
I didn't find any user of the driver data yet, so store the
drm_device pointer in there.

Cc: Inki Dae <inki.dae@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:40 +10:00
Daniel Vetter 57a24cf897 drm/rcar: call drm_put_dev directly in the ->remove hook
The magic dance drm_platform_exit does is actually a remnant of the
old legacy shadow attach support for platform devices. Modern modesetting
drm drivers shouldn't do this any more (and usb/pci devices actually don't
do this).

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:39 +10:00
Laurent Pinchart c0c72a85c6 drm: shmob_drm: Check clk_prepare_enable() return value
The clk_prepare_enable() call can fail. Check it's return value. We
can't propagate it all the way to the user as the KMS operations in
which the clock is enabled return a void.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:04:40 +10:00
Thierry Reding 66ee52e284 drm: Implement dummies for debugfs helpers
In case where debugfs support is disabled, define dummy functions to
avoid the need for #ifdefery in drivers.

Based on an earlier patch by Arnd Bergmann.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:58:11 +10:00
Chris Wilson 46eeb2c144 video/fb: Propagate error code from failing to unregister conflicting fb
If we fail to remove a conflicting fb driver, we need to abort the
loading of the second driver to avoid likely kernel panics.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:56:13 +10:00
Ville Syrjälä 73e9efd4bd drm: Push dirtyfb ioctl kms locking down to drivers
Not all drivers will need take all the modeset locks for dirtyfb, so
push the locking down to the drivers.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:49:08 +10:00
Kristian Hogsberg ee61c7303f drm: Don't reference objects in the flink name idr
There's no reason to keep a reference to objects in the name idr.  Each
handle to an object has a reference to the object and just before we
destroy the last handle we take the object out of the name idr.  Thus,
if an object is in the name idr, there's at least one reference to the
object.

Or to put it another way, the name idr reference will never keep the
object alive.  It just looks like it, which is confusing.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:48:17 +10:00
Paulo Zanoni 520edd139a drm: do not steal the display if we have a master
Sometimes we want to disable all the screens on a system, because that
will allow the graphics card to be put into low-power states. The
problem is that, for example, while all screens are disabled, if we
get a hotplug interrupt, fbcon will decide to set a mode instead of
keeping everything disabled, which will remove us from our low power
states.

Let's assume that if there's a DRM master, it will be able to do
whatever is appropriate when we get the hotplug.

This problem can be reproduced by the runtime PM test program from
intel-gpu-tools: we disable all the screens so the graphics device can
be put into D3, then something triggers a hotplug interrupt, fbcon
sets a mode and breaks our test suite. The problem can be reproduced
more easily by the "i2c" subtest.

Other approaches considered for the problem:
    - Return "false" if "bound == 0" and the caller of
      drm_fb_helper_is_bound is a hotplug handler. This would break
      the case where the machine boots with no outputs connected, then
      the user plugs a monitor.
    - Add a new IOCTL to force fbcon to not set modes. This would keep
      all the current applications behaving the same, but adding a new
      IOCTL is not always the greatest idea.
    - Return false only if "dev->primary->master && bound == 0". This
      was my first implementation, but Chris suggested we should do
      the check irrespective of the "bound" variable.

Thanks to Daniel Vetter for the investigation, ideas and the
implementation of the hotplug alternative.

v2: - Do the check first, irrespective of "bound".
    - Cc dri-devel

Cc: dri-devel@lists.freedesktop.org
Credits-to: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:47:20 +10:00
Daniel Vetter fffb906532 drm: Don't split up debug output
Otherwise we risk that the 2nd part of the line ends up on a line of
it's own, which means a kernel dmesg line without a log level. This
then upsets the dmesg checker in piglit.

Only really happens in some of the truly nasty igt testcases which
race cache dropping (through debugfs) with other gem operations.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:44:50 +10:00
Rob Clark 5d13d425eb drm: add DRM_ERROR_RATELIMITED
For error traces in situations that can run away, it is nice to have a
rate-limited version of DRM_ERROR() to avoid massive log flooding.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:43:49 +10:00
Geert Uytterhoeven ce456e0396 drm/edid: Make edid_load() return a void *
Always use "void *" for arbitrary memory buffers, as this allows to drop
casts in assignments.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 10:42:13 +10:00
Dave Airlie da32cc90cb Merge tag 'drm-intel-next-2013-11-29' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
- some more ppgtt prep patches from Ben
- a few fbc fixes from Ville
- power well rework from Imre
- vlv forcewake improvements from Deepak S, Ville and Jesse
- a few smaller things all over

[airlied: fixup forwcewake conflict]
* tag 'drm-intel-next-2013-11-29' of git://people.freedesktop.org/~danvet/drm-intel: (97 commits)
  drm/i915: Fix port name in vlv_wait_port_ready() timeout warning
  drm/i915: Return a drm_mode_status enum in the mode_valid vfuncs
  drm/i915: add intel_display_power_enabled_sw() for use in atomic ctx
  drm/i915: drop DRM_ERROR in intel_fbdev init
  drm/i915/vlv: use parallel context restore when coming out of RC6
  drm/i915/vlv: use a lower RC6 timeout on VLV
  drm/i915/sdvo: Fix up debug output to not split lines
  drm/i915: make sparse happy for the new vlv mmio read function
  drm/i915: drop the right force-wake engine in the vlv mmio funcs
  drm/i915: Fix GT wake FIFO free entries for VLV
  drm/i915: Report all GTFIFODBG errors
  drm/i915: Enabling DebugFS for valleyview forcewake counts
  drm/i915/vlv: Valleyview support for forcewake Individual power wells.
  drm/i915: Add power well arguments to force wake routines.
  drm/i915: Do not attempt to re-enable an unconnected primary plane
  drm/i915: add a debugfs entry for power domain info
  drm/i915: add a default always-on power well
  drm/i915: don't do BDW/HSW specific powerdomains init on other platforms
  drm/i915: protect HSW power well check with IS_HASWELL in redisable_vga
  drm/i915: use IS_HASWELL/BROADWELL instead of HAS_POWER_WELL
  ...

Conflicts:
	drivers/gpu/drm/i915/intel_display.c
2013-12-18 10:39:56 +10:00
Linus Torvalds 319e2e3f63 Linux 3.13-rc4 2013-12-15 12:31:33 -08:00
Matias Bjorling 57053d8c5c null_blk: mem garbage on NUMA systems during init
For NUMA systems, initializing the blk-mq layer and using per node hctx.
We initialize submit queues to 1, while blk-mq nr_hw_queues is
initialized to the number of NUMA nodes.

This makes the null_init_hctx function overwrite memory outside of what
it allocated.  In my case it lead to writing garbage into struct
request_queue's mq_map.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-15 12:17:16 -08:00
Sergey Senozhatsky e4158f1b10 radeon_pm: fix oops in hwmon_attributes_visible() and radeon_hwmon_show_temp_thresh()
Since commit ec39f64bba ("drm/radeon/dpm: Convert to use
devm_hwmon_register_with_groups") radeon_hwmon_init() is using
hwmon_device_register_with_groups(), which sets `rdev' as a device
private driver_data, while hwmon_attributes_visible() and
radeon_hwmon_show_temp_thresh() are still waiting for `drm_device'.

Fix them by using dev_get_drvdata(), in order to avoid this oops:

  BUG: unable to handle kernel paging request at 0000000000001e28
  IP: [<ffffffffa02ae8b4>] hwmon_attributes_visible+0x18/0x3d [radeon]
  PGD 15057e067 PUD 151a8e067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP
  Call Trace:
    internal_create_group+0x114/0x1d9
    sysfs_create_group+0xe/0x10
    sysfs_create_groups+0x22/0x5f
    device_add+0x34f/0x501
    device_register+0x15/0x18
    hwmon_device_register_with_groups+0xb5/0xed
    radeon_hwmon_init+0x56/0x7c [radeon]
    radeon_pm_init+0x134/0x7e5 [radeon]
    radeon_modeset_init+0x75f/0x8ed [radeon]
    radeon_driver_load_kms+0xc6/0x187 [radeon]
    drm_dev_register+0xf9/0x1b4 [drm]
    drm_get_pci_dev+0x98/0x129 [drm]
    radeon_pci_probe+0xa3/0xac [radeon]
    pci_device_probe+0x6e/0xcf
    driver_probe_device+0x98/0x1c4
    __driver_attach+0x5c/0x7e
    bus_for_each_dev+0x7b/0x85
    driver_attach+0x19/0x1b
    bus_add_driver+0x104/0x1ce
    driver_register+0x89/0xc5
    __pci_register_driver+0x58/0x5b
    drm_pci_init+0x86/0xea [drm]
    radeon_init+0x97/0x1000 [radeon]
    do_one_initcall+0x7f/0x117
    load_module+0x1583/0x1bb4
    SyS_init_module+0xa0/0xaf

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-15 12:16:00 -08:00
Linus Torvalds 4a251dd29c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
    figure out why it breaks things.

 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
    was basically doing "x == x", from Dave Jones.

 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
    Sebastian Siewior.

 4) Blackhole and prohibit routes in ipv6 were not doing the right thing
    because their ->input and ->output methods were not being assigned
    correctly.  Now they behave properly like their ipv4 counterparts.
    From Kamala R.

 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
    really do not support this feature and will send garbage packets if
    fed fraglist SKBs.  From Eric Dumazet.

 6) Fix long standing user triggerable BUG_ON over loopback in RDS
    protocol stack, from Venkat Venkatsubra.

 7) Several not so common code paths can potentially try to invoke
    packet scheduler actions that might be NULL without checking.  Shore
    things up by either 1) defining a method as mandatory and erroring
    on registration if that method is NULL 2) defininig a method as
    optional and the registration function hooks up a default
    implementation when NULL is seen.  From Jamal Hadi Salim.

 8) Fix fragment detection in xen-natback driver, from Paul Durrant.

 9) Kill dangling enter_memory_pressure method in cg_proto ops, from
    Eric W Biederman.

10) SKBs that traverse namespaces should have their local_df cleared,
    from Hannes Frederic Sowa.

11) IOCB file position is not being updated by macvtap_aio_read() and
    tun_chr_aio_read().  From Zhi Yong Wu.

12) Don't free virtio_net netdev before releasing all of the NAPI
    instances.  From Andrey Vagin.

13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.

14) IPv6 routes that are no cached routes should not count against the
    garbage collection limits.  We had this almost right, but were
    missing handling addrconf generated routes properly.  From Hannes
    Frederic Sowa.

15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
    route info when they are called, from Stefan Tomanek.

16) TUN and MACVTAP have had truncated packet signalling for some time,
    fix from Jason Wang.

17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.

18) xen-netback does not interpret the NAPI budget properly for TX work,
    fix from Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  xen-netback: fix gso_prefix check
  net: make neigh_priv_len in struct net_device 16bit instead of 8bit
  drivers: net: cpsw: fix for cpsw crash when build as modules
  xen-netback: napi: don't prematurely request a tx event
  xen-netback: napi: fix abuse of budget
  sch_tbf: use do_div() for 64-bit divide
  udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
  net:fec: remove duplicate lines in comment about errata ERR006358
  Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
  8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
  xen-netback: make sure skb linear area covers checksum field
  net: smc91x: Fix device tree based configuration so it's usable
  udp: ipv4: fix potential use after free in udp_v4_early_demux()
  macvtap: signal truncated packets
  tun: unbreak truncated packet signalling
  net: sched: htb: fix the calculation of quantum
  net: sched: tbf: fix the calculation of max_size
  micrel: add support for KSZ8041RNLI
  ...
2013-12-15 11:56:47 -08:00
Linus Torvalds 908bfda754 Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "This is a pretty small batch:

  The biggest single change is to stop using EFI time services on 32-bit
  platforms.  This matches our current behavior on 64-bit platforms as
  we already had ruled them out there as being too unreliable.  Turns
  out that affects 32-bit platforms, too.

  One NULL pointer fix for SGI UV.

  Two minor build fixes, one of which only affects icc and the other
  which affects icc and future versions or nonstandard default settings
  of gcc"

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Don't use (U)EFI time services on 32 bit
  x86, build, icc: Remove uninitialized_var() from compiler-intel.h
  x86/UV: Fix NULL pointer dereference in uv_flush_tlb_others() if the 'nobau' boot option is used
  x86, build: Pass in additional -mno-mmx, -mno-sse options
2013-12-15 11:52:47 -08:00