deliverable/linux.git
9 years agoMerge remote-tracking branch 'airlied/drm-next' into drm-intel-next
Daniel Vetter [Tue, 29 Jul 2014 18:49:36 +0000 (20:49 +0200)] 
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next

Pull in drm-next with Dave's DP MST support so that I can merge some
conflicting patches which also touch the driver load sequencing around
interrupt handling.

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

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/userptr: Keep spin_lock/unlock in the same block
Chris Wilson [Thu, 24 Jul 2014 12:28:44 +0000 (13:28 +0100)] 
drm/i915/userptr: Keep spin_lock/unlock in the same block

Move the code around in order to acquire and release the spinlock in the
same function and in the same block. This keeps static analysers happy
and the reader sane.

Suggested-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Allow overlapping userptr objects
Chris Wilson [Mon, 21 Jul 2014 12:21:23 +0000 (13:21 +0100)] 
drm/i915: Allow overlapping userptr objects

Whilst I strongly advise against doing so for the implicit coherency
issues between the multiple buffer objects accessing the same backing
store, it nevertheless is a valid use case, akin to mmaping the same
file multiple times.

The reason why we forbade it earlier was that our use of the interval
tree for fast invalidation upon vma changes excluded overlapping
objects. So in the case where the user wishes to create such pairs of
overlapping objects, we degrade the range invalidation to walkin the
linear list of objects associated with the mm.

A situation where overlapping objects could arise is the lax implementation
of MIT-SHM Pixmaps in the xserver. A second situation is where the user
wishes to have different access modes to a region of memory (e.g. access
through a read-only userptr buffer and through a normal userptr buffer).

v2: Compile for mmu-notifiers after tweaking
v3: Rename is_linear/has_linear

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Li, Victor Y" <victor.y.li@intel.com>
Cc: "Kelley, Sean V" <sean.v.kelley@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: "Gong, Zhipeng" <zhipeng.gong@intel.com>
Cc: Akash Goel <akash.goel@intel.com>
Cc: "Volkin, Bradley D" <bradley.d.volkin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Ditch UMS config option
Daniel Vetter [Wed, 23 Jul 2014 14:27:25 +0000 (16:27 +0200)] 
drm/i915: Ditch UMS config option

Let's march ahead with the deprecation plan laid out in

commit b30324adaf8d2e5950a602bde63030d15a61826f
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Nov 13 22:11:25 2013 +0100

    drm/i915: Deprecated UMS support

Thus far no regression report yet, so the transparent fallback plan
seems to pan out.

Cc: Dave Airlie <airlied@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Suggested-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: fix initial fbdev setup warnings
Dave Airlie [Wed, 23 Jul 2014 04:26:12 +0000 (14:26 +1000)] 
drm/i915: fix initial fbdev setup warnings

This chunk was no longer required from what I can see, or
at least it is doing the wrong thing, as I confused
intel_connector->encoder and connector->encoder. Drop it
for now, to remove the warnings at bootup.

Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agodrm/i915: don't suspend gt until after we disable irqs and display (v2)
Dave Airlie [Wed, 23 Jul 2014 04:25:24 +0000 (14:25 +1000)] 
drm/i915: don't suspend gt until after we disable irqs and display (v2)

When I moved the irq disable down to after display disable,
I didn't realise the gt suspend also required irqs off, so move it
down as well.

Fixes WARNs seen at suspend/resume time.

v2: moved the rps flush down as well.

Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agodrm/i915: respect the VBT minimum backlight brightness
Jani Nikula [Tue, 24 Jun 2014 15:27:40 +0000 (18:27 +0300)] 
drm/i915: respect the VBT minimum backlight brightness

Historically we've exposed the full backlight PWM duty cycle range to
the userspace, in the name of "mechanism, not policy". However, it turns
out there are both panels and board designs where there is a minimum
duty cycle that is required for proper operation. The minimum duty cycle
is available in the VBT.

The backlight class sysfs interface does not make any promises to the
userspace about the physical meaning of the range
0..max_brightness. Specifically there is no guarantee that 0 means off;
indeed for acpi_backlight 0 usually is not off, but the minimum
acceptable value.

Respect the minimum backlight, and expose the range acceptable to the
hardware as 0..max_brightness to the userspace via the backlight class
device; 0 means the minimum acceptable enabled value. To switch off the
backlight, the user must disable the encoder.

As a side effect, make the backlight class device max brightness and
physical PWM modulation frequency (i.e. max duty cycle)
independent. This allows a follow-up patch to virtualize the max value
exposed to the userspace.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: s/BUG_ON/WARN_ON/]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: extract backlight minimum brightness from VBT
Jani Nikula [Tue, 24 Jun 2014 15:27:39 +0000 (18:27 +0300)] 
drm/i915: extract backlight minimum brightness from VBT

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Replace HAS_PCH_SPLIT which incorrectly lets some platforms in
Sonika Jindal [Tue, 22 Jul 2014 05:43:46 +0000 (11:13 +0530)] 
drm/i915: Replace HAS_PCH_SPLIT which incorrectly lets some platforms in

v2: Adding IS_G4X instead of gen < 5 as suggested by Daniel

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Returning from increase/decrease of pllclock when invalid
Sonika Jindal [Tue, 22 Jul 2014 05:46:35 +0000 (11:16 +0530)] 
drm/i915: Returning from increase/decrease of pllclock when invalid

v2: Adding !HAS_GMCH_DISPLAY(dev)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Setting legacy palette correctly for different platforms
Sonika Jindal [Tue, 22 Jul 2014 05:48:27 +0000 (11:18 +0530)] 
drm/i915: Setting legacy palette correctly for different platforms

v2: Adding !HAS_GMCH_DISPLAY(dev)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Avoid incorrect returning for some platforms
Sonika Jindal [Mon, 21 Jul 2014 09:53:45 +0000 (15:23 +0530)] 
drm/i915: Avoid incorrect returning for some platforms

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Writing proper check for reading of pipe status reg
Sonika Jindal [Mon, 21 Jul 2014 09:53:43 +0000 (15:23 +0530)] 
drm/i915: Writing proper check for reading of pipe status reg

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Returning the right VGA control reg for platforms
Sonika Jindal [Mon, 21 Jul 2014 09:53:40 +0000 (15:23 +0530)] 
drm/i915: Returning the right VGA control reg for platforms

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Allowing changing of wm latencies for valid platforms
Sonika Jindal [Mon, 21 Jul 2014 09:53:39 +0000 (15:23 +0530)] 
drm/i915: Allowing changing of wm latencies for valid platforms

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Adding HAS_GMCH_DISPLAY macro
Sonika Jindal [Mon, 21 Jul 2014 09:53:38 +0000 (15:23 +0530)] 
drm/i915: Adding HAS_GMCH_DISPLAY macro

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fix possible overflow when recording semaphore states.
Rodrigo Vivi [Fri, 18 Jul 2014 09:19:40 +0000 (02:19 -0700)] 
drm/i915: Fix possible overflow when recording semaphore states.

semaphore _sync_seqno, _seqno and _mbox are smaller than number of rings.
This optimization is to remove the ring itself from the list and the logic to do that
is at intel_ring_sync_index as below:

/*
 * rcs -> 0 = vcs, 1 = bcs, 2 = vecs, 3 = vcs2;
 * vcs -> 0 = bcs, 1 = vecs, 2 = vcs2, 3 = rcs;
 * bcs -> 0 = vecs, 1 = vcs2. 2 = rcs, 3 = vcs;
 * vecs -> 0 = vcs2, 1 = rcs, 2 = vcs, 3 = bcs;
 * vcs2 -> 0 = rcs, 1 = vcs, 2 = bcs, 3 = vecs;
*/

v2: Skip when from == to (Damien).
v3: avoid computing idx when from == to (Damien).
    use ring == to instead of ring->id == to->id (Damien).
    use continue instead of return (Rodrigo).
v4: avoid all unecessary computation (Damien).
    reduce idx to loop scope (Damien).

Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Do not unmap object unless no other VMAs reference it
Armin Reese [Fri, 11 Jul 2014 17:20:07 +0000 (10:20 -0700)] 
drm/i915: Do not unmap object unless no other VMAs reference it

When using an IOMMU, GEM objects are mapped by their DMA address as the
physical address is unknown. This depends on the underlying IOMMU
driver to map and unmap the physical pages properly as defined in
intel_iommu.c.

The current code will tell the IOMMU to unmap the GEM BO's pages on the
destruction of the first VMA that "maps" that BO. This is clearly wrong
as there may be other VMAs "mapping" that BO (using flink). The scanout
is one such example.

The patch fixes this issue by only unmapping the DMA maps when there are
no more VMAs mapping that object. This is equivalent to when an object
is considered unbound as can be seen by the code. On the first VMA that
again because bound, we will remap.

An alternate solution would be to move the dma mapping to object
creation and destrubtion. I am not sure if this is considered an
unfriendly thing to do.

Some notes to backporters trying to backport full PPGTT:

The bug can never be hit without enabling the IOMMU. The existing code
will also do the right thing when the object is shared via dmabuf. The
failure should be demonstrable with flink. In cases when not using
intel_iommu_strict it is likely (likely, as defined by: off the top of
my head) on current workloads to *not* hit this bug since we often
teardown all VMAs for an object shared across multiple VMs.  We also
finish access to that object before the first dma_unmapping.
intel_iommu_strict with flinked buffers is likely to hit this issue.

Signed-off-by: Armin Reese <armin.c.reese@intel.com>
[danvet: Add the excellent commit message provided by Ben.]
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: remove plane/cursor/pipe assertions from intel_crtc_disable
Paulo Zanoni [Thu, 17 Jul 2014 14:16:39 +0000 (11:16 -0300)] 
drm/i915: remove plane/cursor/pipe assertions from intel_crtc_disable

Since we merged runtime PM support for DPMS, it is possible that these
assertions will be called when the power wells are disabled but a mode
is "set", resulting in "failed assertion" and "device suspended while
reading register" WARNs.

To reproduce the bug: disable all screens using mode unset, do a
modeset on one screen, disable it using DPMS, then try to do a mode
unset on it again to see the WARNs.

v2: The first version of this patch changed the assertions to also
check the power domains. Daniel suggested that it would be better to
just remove the assertions: "The modeset state checker
will already notice when we've failed to turn off the pipe. And we
check cursors and plane state in the enable sequence, too. Since we
use these asserts a lot to lock down the precise modeset sequence I
actually prefer if they're a bit dumb and don't check the power
wells."

Testcase: igt/rpm_rpm/dpms-mode-unset-lpsp
Testcase: igt/rpm_rpm/dpms-mode-unset-non-lpsp
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Reorder ctx unref on ppgtt cleanup
Ben Widawsky [Tue, 1 Jul 2014 18:17:47 +0000 (11:17 -0700)] 
drm/i915: Reorder ctx unref on ppgtt cleanup

The comment [which was mine] is wrong. The context object can never be
bound in a PPGTT because it is only capable of living in the Global GTT.
So, remove the comment, and reorder the unref. What's nice about the
latter is it keeps the context object alive past the PPGTT. This makes
the destroy ordering symmetric with the creation ordering.

Create:
1. Create context
2. Create PPGTT

Destroy:
1. Destroy PPGTT
2. Destroy context

As far as I know, this does not fix a bug. The code previously kept the
context data structure, only the object was gone. As the code was,
nothing tried to use the object after this point.

NOTE: If in the future we have cases where the PPGTT can/should outlive
the context (which doesn't occur today, but the code permits it), this
ordering does not matter. Even if this occurs, as it stands now, we do
not expect that to be the normal case, and having this order makes
debugging a bit easier if we're tracking object lifetimes for the
context vs ppgtt

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Resolve conflict with Oscar's execlist prep patches.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/error: Check the potential ctx obj's vm
Ben Widawsky [Tue, 1 Jul 2014 18:17:41 +0000 (11:17 -0700)] 
drm/i915/error: Check the potential ctx obj's vm

The bound list is global (all objects which back the VMAs are stored
here). Recently the BUG() in the offset lookup was demoted to a WARN,
but the fault actually lies in the caller, here.

This bug has existed since the initial introduction of PPGTT (however,
it was fixed in unmerged patches to fix up the error state).

Note: The reason for the BUG_ON to WARN_ON demotion was _not_ to
duct-tape over this bug here but another but triggerable without
ppgtt. See the commit for details:

commit f25748ea7342bcc44866befcbf0222cd1d89d851
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Jun 17 22:34:38 2014 +0200

    drm/i915: Don't BUG_ON in i915_gem_obj_offset

    A WARN_ON is perfectly fine.

    The BUG in here seems to be the cause behind hard-hangs when I cat the
    i915_gem_pageflip debugfs file (which calls this from an irq
    spinlock). But only while running a full igt run after a while. I
    still need to root cause the underlying issue.

    I'll also start reject patches which add new BUG_ON but don't come
    with a really good justification for it. The general rule really
    should be to just WARN and hope the driver survives for long enough.

    v2: Make the WARN a bit more useful per Chris' suggestion.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Clarfy that the WARN_ON (former BUG_ON) in ggtt_offset caught
more than just this bug fixed in this patch here.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fix printing proper min/min/rpe values in debugfs
Deepak S [Thu, 17 Jul 2014 08:51:14 +0000 (14:21 +0530)] 
drm/i915: Fix printing proper min/min/rpe values in debugfs

This was fumbled while trying to use the cached min/min/rpe values in
the vlv debugfs code.

    This is a regression from

    commit 03af20458a57a50735b12c1e3c23abc7ff70c6fa
    Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
    Date:   Sat Jun 28 02:03:53 2014 +0300

    drm/i915: Use the cached min/min/rpe values in the vlv debugfs code

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: BDW can also detect unclaimed registers
Paulo Zanoni [Wed, 16 Jul 2014 20:49:30 +0000 (17:49 -0300)] 
drm/i915: BDW can also detect unclaimed registers

By the time I wrote this patch, it allowed me to catch some problems.
But due to patch reordering - in order to prevent fake "regression"
reports - this patch may be merged after the fixes of the problems
identified by this patch.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: reorganize the unclaimed register detection code
Paulo Zanoni [Wed, 16 Jul 2014 20:49:29 +0000 (17:49 -0300)] 
drm/i915: reorganize the unclaimed register detection code

The current code only runs when we do an I915_WRITE operation. It
checks if the unclaimed register flag is set before we do the
operation, and then it checks it again after we do the operation. This
double check allows us to find out if the I915_WRITE operation in
question is the bad one, or if some previous code is the bad one. When
it finds a problem, our code uses DRM_ERROR to signal it.

The good thing about the current code is that it detects the problem,
so at least we can know we did something wrong. The problem is that
even though we find the problem, we don't really have much information
to actually debug it. So whenever I see one of these DRM_ERROR
messages on my systems, the first thing I do is apply a patch to
change the DRM_ERROR to a WARN and also check for unclaimed registers
on I915_READ operations. This local patch makes things even slower,
but it usually helps a lot in finding the bad code.

The first point here is that since the current code is only useful to
detect whether we have a problem or not, but it is not really good to
find the cause of the problem, I don't think we should be checking
both before and after every I915_WRITE operation: just doing the check
once should be enough for us to quickly detect problems. With this
change, the code that runs by default for every single user will only
do 1 read operation for every single I915_WRITE, instead of 2. This
patch does this change.

The second point is that the local patch I have should be upstream,
but since it makes things slower it should be disabled by default. So
I added the i915.mmio_debug option to enable it.

So after this patch, this is what will happen:
 - By default, we will try to detect unclaimed registers once after
   every I915_WRITE operation. Previously we tried twice for every
   I915_WRITE.
 - When we find an unclaimed register we will still print a DRM_ERROR
   message, but we will now tell the user to try again with
   i915.mmio_debug=1.
 - When we use i915.mmio_debug=1 we will try to find unclaimed
   registers both before and after every I915_READ and I915_WRITE
   operation, and we will print stack traces in case we find them.
   This should really help locating the exact point of the bad code
   (or at least finding out that i915.ko is not the problem).

This commit also opens space for really-slow register debugging
operations on other platforms. In theory we can now add lots and lots
of debug code behind i915.mmio_debug, enable this option on our tests,
and catch more problems.

v2: - Remove not-so-useful comments (Daniel)
    - Fix the param definition macros (Rodrigo)

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: mark IRQs as disabled on unload
Jesse Barnes [Fri, 20 Jun 2014 18:57:33 +0000 (11:57 -0700)] 
drm/i915: mark IRQs as disabled on unload

To avoid more spew with the new warnings.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: clear pm._irqs_disabled field after installing IRQs
Jesse Barnes [Fri, 20 Jun 2014 16:39:36 +0000 (09:39 -0700)] 
drm/i915: clear pm._irqs_disabled field after installing IRQs

After this point, we'll modify it with the runtime routines.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: set pm._irqs_disabled at IRQ init time
Jesse Barnes [Fri, 20 Jun 2014 16:29:22 +0000 (09:29 -0700)] 
drm/i915: set pm._irqs_disabled at IRQ init time

Before we've installed the handler, we can set this and avoid confusing
init code that then thinks IRQs are enabled and spews complaints
everywhere.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: add helper for checking whether IRQs are enabled
Jesse Barnes [Fri, 20 Jun 2014 16:29:20 +0000 (09:29 -0700)] 
drm/i915: add helper for checking whether IRQs are enabled

Now that we use the runtime IRQ enable/disable functions in our suspend
path, we can simply check the pm._irqs_disabled flag everywhere.  So
rename it to catch the users, and add an inline for it to make the
checks clear everywhere.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: don't warn if IRQs are disabled when shutting down display IRQs
Jesse Barnes [Fri, 20 Jun 2014 16:29:19 +0000 (09:29 -0700)] 
drm/i915: don't warn if IRQs are disabled when shutting down display IRQs

This was always the case on our suspend path, but it was recently
exposed by the change to use our runtime IRQ disable routine rather than
the full DRM IRQ disable.  Keep the warning on the enable side, as that
really would indicate a bug.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: extract and improve gen8_irq_power_well_post_enable
Paulo Zanoni [Fri, 4 Jul 2014 14:50:31 +0000 (11:50 -0300)] 
drm/i915: extract and improve gen8_irq_power_well_post_enable

Move it from hsw_power_well_post_enable() (intel_pm.c) to i915_irq.c
so we can reuse the nice IRQ macros we have there. The main difference
is that now we're going to check if the IIR register is non-zero when
we try to re-enable the interrupts.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: HSW_BLC_PWM2_CTL doesn't exist on BDW
Paulo Zanoni [Fri, 4 Jul 2014 14:50:30 +0000 (11:50 -0300)] 
drm/i915: HSW_BLC_PWM2_CTL doesn't exist on BDW

So don't write it, otherwise we will trigger unclaimed register
errors.

Testcase: igt/pm_rpm/rte
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: don't write powered down IRQ registers on Gen 8
Paulo Zanoni [Fri, 4 Jul 2014 14:50:29 +0000 (11:50 -0300)] 
drm/i915: don't write powered down IRQ registers on Gen 8

If we enable unclaimed register reporting on Gen 8, we will discover
that the IRQ registers for pipes B and C are also on the power well,
so writes to them when the power well is disabled result in unclaimed
register errors.

Also, hsw_power_well_post_enable() already takes care of re-enabling
them once the power well is enabled.

Testcase: igt/pm_rpm/rte
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Use genX_ prefix for gt irq enable/disable functions
Daniel Vetter [Wed, 16 Jul 2014 07:49:40 +0000 (09:49 +0200)] 
drm/i915: Use genX_ prefix for gt irq enable/disable functions

Traditionally we use genX_ for GT/render stuff and the codenames for
display stuff. But the gt and pm interrupt handling functions on
gen5/6+ stuck out as exceptions, so convert them.

Looking at the diff this nicely realigns our ducks since almost all
the callers are already platform-specific functions following the
genX_ pattern.

Spotted while reviewing some internal rps patches.

No function change in this patch.

Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Make the WRPLL names const
Damien Lespiau [Tue, 15 Jul 2014 14:05:33 +0000 (15:05 +0100)] 
drm/i915: Make the WRPLL names const

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Initialise userptr mmu_notifier serial to 1
Chris Wilson [Fri, 11 Jul 2014 10:28:01 +0000 (11:28 +0100)] 
drm/i915: Initialise userptr mmu_notifier serial to 1

During the range invalidate, we walk the list of buffers associated with
the mmu_notifer and find the ones that overlap the range. An
optimisation is made to speed up the iteration by assuming the previous
iter is still valid whilst the tree is unmodified. This exposes a bug
when a range invalidate is triggered after we have just created the
mmu_notifier, but before attaching any buffers. In that case, we presume
we have an unmodified list and start walking from the last iter which is
NULL. Oops.

The easiest fix is then to initialise the serial of the tree to 1.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Testecase: igt/gem_userptr_blts/stress-mm
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Abandon oom quickly if killed by a signal
Chris Wilson [Fri, 11 Jul 2014 10:28:00 +0000 (11:28 +0100)] 
drm/i915: Abandon oom quickly if killed by a signal

Whilst waiting to obtain our locks for the last resort shrinking before
an oom, we check whether or not a fatal signal was pending. If there was,
we do not need to keep waiting as the oom will be aborted.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Also give the sprite width for WM computation
Damien Lespiau [Tue, 15 Jul 2014 07:21:24 +0000 (09:21 +0200)] 
drm/i915: Also give the sprite width for WM computation

In the future, we'll need the height of the fb to fetch from memory for
WM computation.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: PM irq enabling is generic on gen8, too
Damien Lespiau [Tue, 15 Jul 2014 07:17:41 +0000 (09:17 +0200)] 
drm/i915: PM irq enabling is generic on gen8, too

No need to list all the platforms explicitly.

The prefix is a bit inconsistent since we usually pick gen8_ for GT
related functions. But this anti-pattern is already established with snb,
so material for a different patch.

Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agoDocumentation/drm: Describing aspect ratio property
Vandana Kannan [Wed, 11 Jun 2014 09:03:05 +0000 (14:33 +0530)] 
Documentation/drm: Describing aspect ratio property

Updated drm documentation to include desscription of aspect ratio property.

v2: Updated aspect ratio specific documentation on top of the HTML table created.

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Sagar Kamble <sagar.a.kamble@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sagar Kamble <sagar.a.kamble@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add aspect ratio property for HDMI
Vandana Kannan [Wed, 11 Jun 2014 05:36:01 +0000 (11:06 +0530)] 
drm/i915: Add aspect ratio property for HDMI

Create and attach the drm property to set aspect ratio. If there is no user
specified value, then PAR_NONE/Automatic option is set by default. User can
select aspect ratio 4:3 or 16:9. The aspect ratio selected by user would
come into effect with a mode set.

v2: Modified switch case to include aspect ratio enum changes

v3: Modified the patch according the change in the earlier patch to return
errno in case property creation fails. With this change, property will be
attached only if creation is successful

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/edid: Check for user aspect ratio input
Vandana Kannan [Thu, 5 Jun 2014 09:15:29 +0000 (14:45 +0530)] 
drm/edid: Check for user aspect ratio input

In case user has specified an input for aspect ratio through the property,
then the user space value for PAR would take preference over the value from
CEA mode list.

v2: Thierry's review comments.
- Modified the comment "Populate..." as per review comments

v3: Thierry's review comments.
- Modified the comment to block comment format.

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/crtc: Add property for aspect ratio
Vandana Kannan [Wed, 11 Jun 2014 05:16:48 +0000 (10:46 +0530)] 
drm/crtc: Add property for aspect ratio

Added a property to enable user space to set aspect ratio.
This patch contains declaration of the property and code to create the
property.

v2: Thierry's review comments.
- Made aspect ratio enum generic instead of HDMI/CEA specfic
- Removed usage of temporary aspect_ratio variable

v3: Thierry's review comments.
- Fixed indentation

v4: Thierry's review comments.
- Return ENOMEM when property creation fails

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/chv: Drop WaGsvBringDownFreqInRc6
Deepak S [Sat, 28 Jun 2014 05:56:26 +0000 (11:26 +0530)] 
drm/i915/chv: Drop WaGsvBringDownFreqInRc6

Drop WaGsvBringDownFreq on CHV.
When in RC6 requesting the min freq should be fine to bring the
voltage down.

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@Virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: remove useless runtime PM get calls
Paulo Zanoni [Thu, 24 Apr 2014 13:50:56 +0000 (10:50 -0300)] 
drm/i915: remove useless runtime PM get calls

We already call intel_display_power_get, which will get a power
domain, and every power domain should get a runtime PM reference,
which will wake up the machine.

v2: - Also touch intel_crt_detect() (Ville).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Fixup commit message as spotted by Ville.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Force GPU Freq to lowest while suspending.
Deepak S [Fri, 20 Jun 2014 14:33:02 +0000 (20:03 +0530)] 
drm/i915: Force GPU Freq to lowest while suspending.

We might be leaving the GPU Frequency (and thus vnn) high during the suspend.
Force gt to move to lowest freq while suspending.

v2: Fixed typo in commit message (Deepak)

v3: Force gt to lowest freq in suspend_gt_powersave (Daniel)

v4: Add GPU min freq set _after_ we've cancelled the rps works (Daniel)

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Handle failure to kick out a conflicting fb driver
Chris Wilson [Mon, 16 Dec 2013 15:57:40 +0000 (15:57 +0000)] 
drm/i915: Handle failure to kick out a conflicting fb driver

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Enable PSR by default.
Rodrigo Vivi [Fri, 11 Jul 2014 17:30:19 +0000 (10:30 -0700)] 
drm/i915: Enable PSR by default.

Panel Self Refresh is an eDP power saving feature specified by VESA's eDP v1.3,
that allows some panel componets to shutdown while you still see static images on
the screen. Besides being supported on the platform it must be supported by the
eDP panel itself.

Now that we have the propper frontbuffer tracking support and correct locks on place
we can enabled this feature by default.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Remove redundant HAS_PSR checks
Daniel Vetter [Fri, 11 Jul 2014 17:30:18 +0000 (10:30 -0700)] 
drm/i915: Remove redundant HAS_PSR checks

We only need to check for this in psr_enable, everything else is
already protect by the dev_priv->psr.enabled checks. Those need the
psr locking, but these functions are called infrequent enough that the
locking overhead is negligible.

Suggested by Chris Wilson.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Improve PSR debugfs output
Daniel Vetter [Fri, 11 Jul 2014 17:30:17 +0000 (10:30 -0700)] 
drm/i915: Improve PSR debugfs output

Add busy_frontbuffer_bits and locking.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fix up PSR frontbuffer tracking
Daniel Vetter [Fri, 11 Jul 2014 17:30:16 +0000 (10:30 -0700)] 
drm/i915: Fix up PSR frontbuffer tracking

I've tried to split this up, but all the changes are so tightly
related that I didn't find a good way to do this without breaking
bisecting. Essentially this completely changes how psr is glued into
the overall driver, and there's not much you can do to soften such a
paradigm change.

- Use frontbuffer tracking bits stuff to separate disable and
  re-enable.

- Don't re-check everything in the psr work. We have now accurate
  tracking for everything, so no need to check for sprites or tiling
  really. Allows us to ditch tons of locks.

- That in turn allows us to properly cancel the work in the disable
  function - no more deadlocks.

- Add a check for HSW sprites and force a flush. Apparently the
  hardware doesn't forward the flushing when updating the sprite base
  address. We can do the same trick everywhere else we have such
  issues, e.g. on baytrail with ... everything.

- Don't re-enable psr with a delay in psr_exit. It really must be
  turned off forever if we detect a gtt write. At least with the
  current frontbuffer render tracking. Userspace can do a busy ioctl
  call or no-op pageflip to re-enable psr.

- Drop redundant checks for crtc and crtc->active - now that they're
  only called from enable this is guaranteed.

- Fix up the hsw port check. eDP can also happen on port D, but the
  issue is exactly that it doesn't work there. So an || check is
  wrong.

- We still schedule the psr work with a delay. The frontbuffer
  flushing interface mandates that we upload the next full frame, so
  need to wait a bit. Once we have single-shot frame uploads we can do
  better here.

v2: Don't enable psr initially, rely upon the fb flush of the initial
plane setup for that. Gives us more unified code flow and makes the
crtc enable sequence less a special case.

v3: s/psr_exit/psr_invalidate/ for consistency

v4: Fixup whitespace.

v5: Correctly bail out of psr_invalidate/flush when
dev_priv->psr.enabled is NULL. Spotted by Rodrigo.

v6:
- Only schedule work when there's work to do. Fixes WARNINGs reported
  by Rodrigo.
- Comments Chris requested to clarify the code.

v7: Fix conflict on rebase (Rodrigo)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add locking to psr code
Daniel Vetter [Fri, 11 Jul 2014 17:30:15 +0000 (10:30 -0700)] 
drm/i915: Add locking to psr code

It's not really optional to have locking ...

The ugly part is how much locking the psr work needs since it has to
recheck everything. Which is way too much. But we need to ditch the
psr work in it's current form anyway and implement proper frontbuffer
tracking.

The other nasty bit that had to go was the delayed work cancle in
psr_exit. Which means a bunch of races just became a bit more likely,
but mea culpa.

v2: Fixup HAS_PSR checks, resulting in uninitialized mutex issues.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: More checks for psr.enabled
Daniel Vetter [Fri, 11 Jul 2014 17:30:14 +0000 (10:30 -0700)] 
drm/i915: More checks for psr.enabled

We need to make sure that no one else is using this in the
enable function and also that the work item hasn't raced
with the disabled function.

v2: Improve bisectability by moving one hunk to an earlier patch.

v3: added missing dev_priv declaration (Rodrigo)

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Lock down psr sw/hw state tracking
Daniel Vetter [Fri, 11 Jul 2014 17:30:13 +0000 (10:30 -0700)] 
drm/i915: Lock down psr sw/hw state tracking

Make sure we track the sw side (psr.active) correctly and WARN
everywhere it might get out of sync with the hw.

v2: Fixup WARN_ON logic inversion, reported by Rodrigo.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Don't try to disable psr harder from the work item
Daniel Vetter [Fri, 11 Jul 2014 17:30:12 +0000 (10:30 -0700)] 
drm/i915: Don't try to disable psr harder from the work item

It's disabled already except when we've raced.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Track the psr dp connector in dev_priv->psr.enabled
Daniel Vetter [Fri, 11 Jul 2014 17:30:11 +0000 (10:30 -0700)] 
drm/i915: Track the psr dp connector in dev_priv->psr.enabled

Trying to fish that one out through looping is a bit a locking
nightmare. So just set it and use it in the work struct.

v2:
- Don't Oops in psr_work, spotted by Rodrigo.
- Fix compile warning.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add a FIXME about drrs/psr interactions
Daniel Vetter [Fri, 11 Jul 2014 17:30:10 +0000 (10:30 -0700)] 
drm/i915: Add a FIXME about drrs/psr interactions

Can't review this right now due to lack of DRRS code.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Run psr_setup unconditionally
Daniel Vetter [Fri, 11 Jul 2014 17:30:09 +0000 (10:30 -0700)] 
drm/i915: Run psr_setup unconditionally

Due to runtime pm and system s/r we need to restore hw state every
time we enable a pipe again. Hence trying to avoid that is just
pointless book-keeping which Rodrigo then tried to work around by
manually adding psr_setup calls to our resume code.

Much simpler to just remove code instead.

v2: Properly bail out of psr exit if psr isn't enabled. Spotted by
Rodrigo.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Power gating display wells during i915_pm_suspend
Borun Fu [Sat, 12 Jul 2014 04:32:27 +0000 (10:02 +0530)] 
drm/i915: Power gating display wells during i915_pm_suspend

On VLV, after i915_pm_suspend display power wells are staying
power ungated. So, after initiating mem sleep "echo mem > /sys/power/state"
Display is staing D0 State. There might be better way/place to power gate
these wells. Also, we need to make sure that if wells are power gated due to
DPMS OFF sequence, they need not be turned off by i915_pm_suspend again.

v2: Extracted helper for intel_crtc_disable and power gating CRTC power wells.
[Daniel]

Cc: Imre Deak <imre.deak@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Change-Id: I34c80da66aa24c423a5576c68aa1f3a8d0f43848
Signed-off-by: Borun Fu <borun.fu@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agoMerge branch 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into...
Dave Airlie [Wed, 23 Jul 2014 04:30:13 +0000 (14:30 +1000)] 
Merge branch 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next

pull the msm patch in.
* 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm: msm: update to use component match support

9 years agoMerge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into...
Dave Airlie [Wed, 23 Jul 2014 03:01:56 +0000 (13:01 +1000)] 
Merge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next

Merge armada changes, I've confirmed the componenet changes are same as in Greg's tree.
* 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm/armada: register crtc with port
  drm/armada: permit CRTCs to be registered as separate devices
  dt-bindings: add Marvell Dove LCD controller documentation
  drm/armada: update Armada 510 (Dove) to use "ext_ref_clk1" as the clock
  drm/armada: convert to componentized support
  drm: add of_graph endpoint helper to find possible CRTCs
  component: fix bug with legacy API
  drm/armada: make variant a CRTC thing
  drm/armada: move variant initialisation to CRTC init
  drm/armada: use number of CRTCs registered
  drm/armada: move IRQ handling into CRTC
  component: add support for component match array
  component: ignore multiple additions of the same component
  component: fix missed cleanup in case of devres failure

10 years agodrm/i915: fix build without fbdev.
Chris Wilson [Tue, 22 Jul 2014 10:10:28 +0000 (20:10 +1000)] 
drm/i915: fix build without fbdev.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: make device_released static
Dave Airlie [Tue, 22 Jul 2014 02:59:32 +0000 (12:59 +1000)] 
drm/ttm: make device_released static

fixes sparse warning, and removes potentially dangerous name from namespace.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: use gfp_t instead of int for flags.
Dave Airlie [Tue, 22 Jul 2014 02:55:39 +0000 (12:55 +1000)] 
drm/ttm: use gfp_t instead of int for flags.

fixes sparse warning.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: omapdrm: fix compiler errors
Russell King [Sat, 12 Jul 2014 09:53:41 +0000 (10:53 +0100)] 
drm: omapdrm: fix compiler errors

Regular randconfig nightly testing has detected problems with omapdrm.

omapdrm fails to build when the kernel is built to support 64-bit DMA
addresses and/or 64-bit physical addresses due to an assumption about
the width of these types.

Use %pad to print DMA addresses, rather than %x or %Zx (which is even
more wrong than %x).  Avoid passing a uint32_t pointer into a function
which expects dma_addr_t pointer.

drivers/gpu/drm/omapdrm/omap_plane.c: In function 'omap_plane_pre_apply':
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_plane.o] Error 1
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_get_paddr':
drivers/gpu/drm/omapdrm/omap_gem.c:794:4: error: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_describe':
drivers/gpu/drm/omapdrm/omap_gem.c:991:4: error: format '%Zx' expects argument of type 'size_t', but argument 7 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_init':
drivers/gpu/drm/omapdrm/omap_gem.c:1470:4: error: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_gem.o] Error 1
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c: In function 'dmm_txn_append':
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:226:2: error: passing argument 3 of 'alloc_dma' from incompatible pointer type [-Werror]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_dmm_tiler.o] Error 1
make[5]: Target `__build' not remade because of errors.
make[4]: *** [drivers/gpu/drm/omapdrm] Error 2

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: bochs: fix warnings
Russell King [Sat, 12 Jul 2014 10:01:38 +0000 (11:01 +0100)] 
drm: bochs: fix warnings

Regular nightly randconfig build testing discovered these warnings:

drivers/gpu/drm/bochs/bochs_drv.c:100:12: warning: 'bochs_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/bochs/bochs_drv.c:117:12: warning: 'bochs_pm_resume' defined but not used [-Wunused-function]

Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: cirrus: fix warnings
Russell King [Sat, 12 Jul 2014 10:01:43 +0000 (11:01 +0100)] 
drm: cirrus: fix warnings

Regular nightly randconfig build testing discovered these warnings:

drivers/gpu/drm/cirrus/cirrus_drv.c:79:12: warning: 'cirrus_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/cirrus/cirrus_drv.c:96:12: warning: 'cirrus_pm_resume' defined but not used [-Wunused-function]

Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: shmobile: fix warnings
Russell King [Sun, 13 Jul 2014 11:19:03 +0000 (12:19 +0100)] 
drm: shmobile: fix warnings

drivers/gpu/drm/shmobile/shmob_drm_drv.c:300:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]

Always use #ifdef with CONFIG symbols, never just bare #if

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: rcar-du: fix warnings
Russell King [Sun, 13 Jul 2014 11:18:58 +0000 (12:18 +0100)] 
drm: rcar-du: fix warnings

drivers/gpu/drm/rcar-du/rcar_du_drv.c:190:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]

Always use #ifdef with CONFIG symbols, never just bare #if

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i2c: tda998x: Remove useless test
Jean-Francois Moine [Mon, 7 Jul 2014 15:59:51 +0000 (17:59 +0200)] 
drm/i2c: tda998x: Remove useless test

In tda998x_encoder_destroy(), priv->cec is never NULL, so,
remove its test.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied...
Dave Airlie [Tue, 22 Jul 2014 01:21:51 +0000 (11:21 +1000)] 
Merge branch 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied/linux into drm-next

Evil super powers maintainer abuse, get i915 mst support into -next.

* 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: mst topology dumper in debugfs (v0.2)
  drm/i915: add DP 1.2 MST support (v0.7)
  drm/i915: split conversion function out into separate function
  drm/i915: check connector->encoder before using it.
  i915: split some DP modesetting code into a separate function
  drm/i915: add some registers need for displayport MST support.

10 years agodrm/i915: mst topology dumper in debugfs (v0.2)
Dave Airlie [Mon, 12 May 2014 05:22:27 +0000 (15:22 +1000)] 
drm/i915: mst topology dumper in debugfs (v0.2)

use the mst helper code to dump the topology in debugfs.

v0.2: drop is_mst check - as we want to dump other info

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: add DP 1.2 MST support (v0.7)
Dave Airlie [Fri, 2 May 2014 04:02:48 +0000 (14:02 +1000)] 
drm/i915: add DP 1.2 MST support (v0.7)

This adds DP 1.2 MST support on Haswell systems.

Notes:
a) this reworks irq handling for DP MST ports, so that we can
avoid the mode config locking in the current hpd handlers, as
we need to process up/down msgs at a better time.

Changes since v0.1:
use PORT_PCH_HOTPLUG to detect short vs long pulses
add a workqueue to deal with digital events as they can get blocked on the
main workqueue beyong mode_config mutex
fix a bunch of modeset checker warnings
acks irqs in the driver
cleanup the MST encoders

Changes since v0.2:
check irq status again in work handler
move around bring up and tear down to fix DPMS on/off
use path properties.

Changes since v0.3:
updates for mst apis
more state checker fixes
irq handling improvements
fbcon handling support
improved reference counting of link - fixes redocking.

Changes since v0.4:
handle gpu reset hpd reinit without oopsing
check link status on HPD irqs
fix suspend/resume

Changes since v0.5:
use proper functions to get max link/lane counts
fix another checker backtrace - due to connectors disappearing.
set output type in more places fro, unknown->displayport
don't talk to devices if no HPD asserted
check mst on short irqs only
check link status properly
rebase onto prepping irq changes.
drop unsued force_act

Changes since v0.6:
cleanup unused struct entry.

[airlied: fix some sparse warnings].

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/dp: Staticize a couple of DP utility functions
Thierry Reding [Mon, 21 Jul 2014 11:23:57 +0000 (13:23 +0200)] 
drm/dp: Staticize a couple of DP utility functions

sparse complains about these functions missing a prototype, but looking
closer they aren't (and likely not supposed to be) used outside of this
source file, so they can be made static.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: Fix a few sparse warnings
Thierry Reding [Mon, 21 Jul 2014 11:15:51 +0000 (13:15 +0200)] 
drm/ttm: Fix a few sparse warnings

The final parameter to ttm_bo_reserve() is a pointer, therefore callers
should use NULL instead of 0.

Fixes a bunch of sparse warnings of this type:

warning: Using plain integer as NULL pointer

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: Add missing __user annotation
Thierry Reding [Mon, 21 Jul 2014 11:24:37 +0000 (13:24 +0200)] 
drm: Add missing __user annotation

The drm_copy_field() function copies strings into userspace buffers, so
the first parameter needs to have a __user annotation to avoid warnings
from the sparse checker.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: split conversion function out into separate function
Dave Airlie [Thu, 5 Jun 2014 03:22:59 +0000 (13:22 +1000)] 
drm/i915: split conversion function out into separate function

for MST I need to reuse this, so just move it now.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: check connector->encoder before using it.
Dave Airlie [Fri, 2 May 2014 03:44:18 +0000 (13:44 +1000)] 
drm/i915: check connector->encoder before using it.

DP MST will need connectors that aren't connected to specific
encoders, add some checks in advance to avoid oopses.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoi915: split some DP modesetting code into a separate function
Dave Airlie [Fri, 2 May 2014 03:36:43 +0000 (13:36 +1000)] 
i915: split some DP modesetting code into a separate function

this is just prep work for mst support.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: add some registers need for displayport MST support.
Dave Airlie [Fri, 2 May 2014 01:17:41 +0000 (11:17 +1000)] 
drm/i915: add some registers need for displayport MST support.

These are just from the Haswell spec.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: gem_cma: Use ERR_CAST helper
Sachin Kamat [Thu, 3 Jul 2014 12:03:33 +0000 (17:33 +0530)] 
drm: gem_cma: Use ERR_CAST helper

Makes the code a bit more readable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: fix psr match conditions screw ups.
Dave Airlie [Mon, 21 Jul 2014 03:54:41 +0000 (13:54 +1000)] 
drm/i915: fix psr match conditions screw ups.

Not enough brown paper bags, you'll have to share one.
(oops below).

The initial match condition code was racy (locking is coming I hear).

then along came:
cd234b0bfd5ab012e42274b24aae420fa1823d58
drm/i915: Do not dereference NULL crtc or fb until after checking

Chris made an attempt to fix it, Ben "reviewed" it.
Daniel merged it.

Then
drm/i915: Make use of intel_fb_obj() (v2)
2ff8fde1ea0992dfd735dce94f8cae2aacff8e5c

made it worse by removing the obj check later.

All in all, my laptop can't barely turn off the display
without hitting this.

Posted to #intel-gfx out of niceness, but I've merged
this already into drm-next.

Here's an oops.
[   11.528185] BUG: unable to handle kernel NULL pointer dereference at 00000000000000d0
[   11.528233] IP: [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.528294] PGD 35bc0067 PUD c997c067 PMD 0
[   11.528321] Oops: 0000 [#1] SMP
[   11.528916] CPU: 3 PID: 244 Comm: kworker/3:2 Not tainted 3.16.0-rc4+ #17
[   11.528949] Hardware name: LENOVO 20ARS25701/20ARS25701, BIOS GJET72WW (2.22 ) 02/21/2014
[   11.529004] Workqueue: events intel_edp_psr_work [i915]
[   11.529031] task: ffff8803079fdaa0 ti: ffff8803079c4000 task.ti: ffff8803079c4000
[   11.529067] RIP: 0010:[<ffffffffa0161fde>]  [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.529129] RSP: 0018:ffff8803079c7d40  EFLAGS: 00010246
[   11.529155] RAX: 0000000000000000 RBX: ffff88030c11c000 RCX: c000000000000000
[   11.529189] RDX: 0000000000000001 RSI: 1df0000000000000 RDI: ffff88030c1190d8
[   11.529222] RBP: ffff8803079c7d60 R08: ffffffff82691140 R09: 0000000000000000
[   11.529256] R10: ffff8803079fdaa0 R11: 3e00000000000000 R12: ffff88030c11c728
[   11.529290] R13: ffff88030c1190d8 R14: ffff88031e2d8e00 R15: 00000000000000c0
[   11.529324] FS:  0000000000000000(0000) GS:ffff88031e2c0000(0000) knlGS:0000000000000000
[   11.529361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.529389] CR2: 00000000000000d0 CR3: 00000000c8d9d000 CR4: 00000000001407e0
[   11.529423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.529457] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.529489] Stack:
[   11.529500]  ffff88030c119000 ffff88030c11c728 ffff88030c1190d8 ffff88031e2d8e00
[   11.529541]  ffff8803079c7d88 ffffffffa01679b2 ffff880035b29a80 ffff880307909f00
[   11.529583]  ffff88031e2d4740 ffff8803079c7df8 ffffffff810a78ab ffffffff810a7849
[   11.529624] Call Trace:
[   11.529654]  [<ffffffffa01679b2>] intel_edp_psr_work+0x52/0x90 [i915]
[   11.529689]  [<ffffffff810a78ab>] process_one_work+0x1db/0x540
[   11.529719]  [<ffffffff810a7849>] ? process_one_work+0x179/0x540
[   11.529750]  [<ffffffff810a81ed>] worker_thread+0x11d/0x520
[   11.529779]  [<ffffffff810a80d0>] ? create_and_start_worker+0x60/0x60
[   11.529810]  [<ffffffff810aeb04>] kthread+0xe4/0x100
[   11.529836]  [<ffffffff810aea20>] ? kthread_create_on_node+0x200/0x200
[   11.529870]  [<ffffffff81705ebc>] ret_from_fork+0x7c/0xb0
[   11.529896]  [<ffffffff810aea20>] ? kthread_create_on_node+0x200/0x200
[   11.529926] Code: ba 31 13 f0 c9 85 f6 75 84 eb d0 66 90 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 48 8b 87 68 ff ff ff 48 8b 9f 28 ff ff ff <48> 8b 80 d0 00 00 00 4c 8b 63 28 48 8b 40 48 48 85 c0 0f 84 1a
[   11.530110] RIP  [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.530163]  RSP <ffff8803079c7d40>
[   11.530180] CR2: 00000000000000d0

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Sat, 19 Jul 2014 07:27:16 +0000 (17:27 +1000)] 
Merge tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel into drm-next

misc core patches.

* tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel:
  drm: Check for connection_mutex in drm_select_eld
  drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
  drm/dp-mst-helper: Avoid reading uninitialized value
  drm/plane-helper: Use proper plane init function
  drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree
  drm: Fix function names in kerneldoc

10 years agoMerge tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Sat, 19 Jul 2014 06:43:41 +0000 (16:43 +1000)] 
Merge tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel into drm-next

- fbc improvements when stolen memory is tight (Ben)
- cdclk handling improvements for vlv/chv (Ville)
- proper fix for stuck primary planes on gmch platforms with cxsr (Imre&Ebgert
  Eich)
- gen8 hw semaphore support (Ben)
- more execlist prep work from Oscar Mateo
- locking fixes for primary planes (Matt Roper)
- code rework to support runtime pm for dpms on hsw/bdw (Paulo, Imre & me), but
  not yet enabled because some fixes from Paulo haven't made the cut
- more gpu boost tuning from Chris
- as usual piles of little things all over

* tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel: (93 commits)
  drm/i915: Make the RPS interrupt generation mask handle the vlv wa
  drm/i915: Move RPS evaluation interval counters to i915->rps
  drm/i915: Don't cast a pointer to void* unnecessarily
  drm/i915: don't read LVDS regs at compute_config time
  drm/i915: check the power domains in intel_lvds_get_hw_state()
  drm/i915: check the power domains in ironlake_get_pipe_config()
  drm/i915: don't skip shared DPLL assertion on LPT
  drm/i915: Only touch WRPLL hw state in enable/disable hooks
  drm/i915: Switch to common shared dpll framework for WRPLLs
  drm/i915: ->enable hook for WRPLLs
  drm/i915: ->disable hook for WRPLLs
  drm/i915: State readout support for WRPLLs
  drm/i915: add POWER_DOMAIN_PLLS
  drm/i915: Document that the pll->mode_set hook is optional
  drm/i915: Basic shared dpll support for WRPLLs
  drm/i915: Precompute static ddi_pll_sel values in encoders
  drm/i915: BDW also has special-purpose DP DDI clocks
  drm/i915: State readout and cross-checking for ddi_pll_sel
  drm/i915: Move ddi_pll_sel into the pipe config
  drm/i915: Add a debugfs file for the shared dpll state
  ...

10 years agodrm: Check for connection_mutex in drm_select_eld
Sean Paul [Thu, 17 Jul 2014 15:25:18 +0000 (11:25 -0400)] 
drm: Check for connection_mutex in drm_select_eld

drm_select_eld should check for mode_config.connection_mutex as
well as mode_config.mutex: We need that since this function checks
conector->encoder links.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
[danvet: Pimp commit message slightly.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
Damien Lespiau [Mon, 14 Jul 2014 11:13:18 +0000 (12:13 +0100)] 
drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header

We could be using uninitialized fields of the header in
drm_dp_encode_sideband_msg_hdr(), for instance hdr->somt is set to 1 in
the first patcket but never set to 0 otherwise.

Always clear the header at the start then.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/dp-mst-helper: Avoid reading uninitialized value
Damien Lespiau [Mon, 14 Jul 2014 10:53:44 +0000 (11:53 +0100)] 
drm/dp-mst-helper: Avoid reading uninitialized value

A static analysis tool tells me that we could try to read an
uninitialized 'ret' value. Plug that.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/plane-helper: Use proper plane init function
Matt Roper [Mon, 30 Jun 2014 22:37:51 +0000 (15:37 -0700)] 
drm/plane-helper: Use proper plane init function

drm_plane_init() (the legacy plane initialization function) takes a bool
as its final parameter; originally this indicated whether a plane was
'private' to the driver (before the DRM core understood non-overlay
planes), now it indicates whether the plane is a primary plane (private
planes were used by some drivers to represent primary planes
internally).  The newer drm_universal_plane_init() take an 'enum
drm_plane_type' as its final parameter to allow the caller to specify
the specific plane type desired (primary, cursor, or overlay).

Due to a rebasing mistake, the primary plane helper is currently passing
DRM_PLANE_TYPE_PRIMARY (enum value = 1) for drm_plane_init()'s boolean
'is_primary' parameter.  This winds up giving the correct behavior since
DRM_PLANE_TYPE_PRIMARY evaluates as true, but is confusing to anyone
reading the code since we're passing an enum value (one of three
possible values) for a boolean parameter.

Replace the primary plane helper's call to drm_plane_init() with
drm_universal_plane_init() so that the parameter and value types match
up as expected.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree
Fabian Frederick [Sat, 28 Jun 2014 13:20:43 +0000 (15:20 +0200)] 
drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree

This patch removes special case of last element and loops from idx to 0.

Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm: Fix function names in kerneldoc
Thierry Reding [Thu, 26 Jun 2014 19:37:20 +0000 (21:37 +0200)] 
drm: Fix function names in kerneldoc

The drm_property_create_enum(), drm_property_create_bitmask() and
drm_property_create_range() contain the wrong name in the kerneldoc
comment. This is probably simply a copy/paste mistake.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/radeon: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:05 +0000 (23:30 -0400)] 
drm/radeon: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:04 +0000 (23:30 -0400)] 
drm/i915: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/nouveau: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:03 +0000 (23:30 -0400)] 
drm/nouveau: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/vmwgfx: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:02 +0000 (23:30 -0400)] 
drm/vmwgfx: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/udl: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:01 +0000 (23:30 -0400)] 
drm/udl: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/mgag200: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:00 +0000 (23:30 -0400)] 
drm/mgag200: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/exynos: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:59 +0000 (23:29 -0400)] 
drm/exynos: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/cirrus: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:58 +0000 (23:29 -0400)] 
drm/cirrus: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/bochs: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:57 +0000 (23:29 -0400)] 
drm/bochs: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ast: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:56 +0000 (23:29 -0400)] 
drm/ast: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: byt_gpu_freq() can be static
Fengguang Wu [Sat, 12 Jul 2014 09:21:39 +0000 (11:21 +0200)] 
drm/i915: byt_gpu_freq() can be static

CC: Deepak S <deepak.s@linux.intel.com>
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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