Alan Cox [Thu, 3 May 2012 14:07:13 +0000 (15:07 +0100)]
gma500: address the lid code
We need this for Poulsbo
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Thu, 3 May 2012 14:06:18 +0000 (15:06 +0100)]
gma500: opregion and ACPI
Add the opregion support and bring us in line with the opregion functionality in the
reference driver code. We can't share this with i915 currently because there are
hardcoded assumptions about dev_priv etc in both versions.
[airlied: include opregion.h fix]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Thu, 3 May 2012 14:06:05 +0000 (15:06 +0100)]
gma500: implement backlight functionality for Cedartrail devices
Basically a straight cut/paste from the reference driver code then
cleaned up a spot.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Thu, 3 May 2012 14:05:53 +0000 (15:05 +0100)]
gma500: wide framebuffer memory
If we set a small text framebuffer and have a bigger scanout then we want
to send black not random bits for the overscan.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Thu, 3 May 2012 14:05:40 +0000 (15:05 +0100)]
gma500: Sync up Oaktrail HDMI
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Thu, 3 May 2012 14:05:15 +0000 (15:05 +0100)]
gma500: don't register the ACPI video bus
We are not yet ready for this and it makes a mess on some devices.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Kirill A. Shutemov [Thu, 3 May 2012 15:27:45 +0000 (16:27 +0100)]
gma500: mdfld_dsi_dpi_mode_set() do not corrupt DSPSTRIDE
The proper stride value set in mdfld__intel_pipe_set_base().
TODO: move tc35876x support to separate driver and get rid of all
if (mdfld_get_panel_type(dev, pipe) == TC35876X) { ... }
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Thu, 3 May 2012 08:29:01 +0000 (09:29 +0100)]
vgaarb: Provide dummy default device functions
Add some stub functions for the case where CONFIG_VGA_ARB is disabled.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Wed, 2 May 2012 16:10:21 +0000 (12:10 -0400)]
drm/radeon: add connector table for SAM440ep embedded board
RV250 found on ppc embedded boards.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Jerome Glisse [Wed, 2 May 2012 20:24:40 +0000 (16:24 -0400)]
drm/radeon: avoid leaking const ib (not used yet on si and newer GPU)
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Michel Dänzer [Wed, 2 May 2012 08:29:56 +0000 (10:29 +0200)]
drm/radeon: Original Radeons had PCI GART, not PCIe GART.
Just a cosmetic fix to make dmesg a little less confusing.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:25 +0000 (15:11 +0200)]
drm/radeon: remove cayman_gpu_is_lockup
Since it is now identical to evergreen_gpu_is_lockup.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:24 +0000 (15:11 +0200)]
drm/radeon: remove r300_gpu_is_lockup
Since it is now identical to r100_gpu_is_lockup.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:23 +0000 (15:11 +0200)]
drm/radeon: make forcing ring activity a common function
Nothing chipset or ring specific with it,
so also move it to radon_ring.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:22 +0000 (15:11 +0200)]
drm/radeon: unlock the ring mutex while waiting for the next fence
Fixing just another deadlock problem with gpu reset tests.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:21 +0000 (15:11 +0200)]
drm/radeon: make lockup timeout a module param
Don't hard code the 10 seconds timeout. Compute jobs
can run much longer.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:20 +0000 (15:11 +0200)]
drm/radeon: move lockup detection code into radeon_ring.c
It isn't chipset specific, so it makes no sense
to have that inside r100.c.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:19 +0000 (15:11 +0200)]
drm/radeon: rework recursive gpu reset handling
Instead of all this humpy pumpy with recursive
mutex (which also fixes only halve of the problem)
move the actual gpu reset out of the fence code,
return -EDEADLK and then reset the gpu in the
calling ioctl function.
v2: Split removal of radeon_mutex into separate patch.
Return -EAGAIN if reset is successful.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:18 +0000 (15:11 +0200)]
drm/radeon: fix a bug with the ring syncing code
Rings need to lock in order, otherwise
the ring subsystem can deadlock.
v2: fix error handling and number of locked doublewords.
v3: stop creating unneeded semaphores.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:17 +0000 (15:11 +0200)]
drm/radeon: don't keep list of created fences.
It's never used and so practically superfluous.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:16 +0000 (15:11 +0200)]
drm/radeon: rename fence_wait_last to fence_wait_empty
As discussed with Michel that name better
describes the behavior of this function.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:15 +0000 (15:11 +0200)]
drm/radeon: return -ENOENT in fence_wait_next v2
We should signal the caller that we haven't waited at all.
v2: only change fence_wait_next not fence_wait_last.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:14 +0000 (15:11 +0200)]
drm/radeon: fix a bug in the SA code
Aligning offset can make it bigger than tmp->offset
leading to an overrun bug in the following subtraction.
v2: Against initial suspicions this can't happen in mainline,
so no need to push it into stable.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:13 +0000 (15:11 +0200)]
drm/radeon: rework gpu lockup detection and processing
Previusly multiple rings could trigger multiple GPU
resets at the same time.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:12 +0000 (15:11 +0200)]
drm/radeon: use central function for IB testing
Removing all the different error messages and
having just one standard behaviour over all
chipset generations.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:11 +0000 (15:11 +0200)]
drm/radeon: register ring debugfs handlers on init
Just register the debugfs files on init instead of
checking the chipset type multiple times.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:10 +0000 (15:11 +0200)]
drm/radeon: replace gpu_lockup with ring->ready flag
It makes no sense at all to have more than one flag.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Christian König [Wed, 2 May 2012 13:11:09 +0000 (15:11 +0200)]
drm/radeon: make radeon_gpu_is_lockup a per ring function
Different rings have different criteria to test
if they are stuck.
v2: rebased on current drm-next
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Patrik Jakobsson [Sat, 28 Apr 2012 21:20:42 +0000 (23:20 +0200)]
cdv: Fix typos in initialization of mdfld_chip_ops
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 1 May 2012 16:38:35 +0000 (17:38 +0100)]
drm/kms: reduce some messages to debug level (v2)
These can all be trigged from userspace if you pass the right values.
v2: rebase on later kernel.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 2 May 2012 08:21:50 +0000 (09:21 +0100)]
Merge tag 'drm-intel-next-2012-04-23' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel Vetter writes:
A new drm-intel-next pull. Highlights:
- More gmbus patches from Daniel Kurtz, I think gmbus is now ready, all
known issues fixed.
- Fencing cleanup and pipelined fencing removal from Chris.
- rc6 residency interface from Ben, useful for powertop.
- Cleanups and code reorg around the ringbuffer code (Ben&me).
- Use hw semaphores in the pageflip code from Ben.
- More vlv stuff from Jesse, unfortunately his vlv cpu is doa, so less
merged than I've hoped for - we still have the unused function warning :(
- More hsw patches from Eugeni, again, not yet enabled fully.
- intel_pm.c refactoring from Eugeni.
- Ironlake sprite support from Chris.
- And various smaller improvements/fixes all over the place.
Note that this pull request also contains a backmerge of -rc3 to sort out
a few things in -next. I've also had to frob the shortlog a bit to exclude
anything that -rc3 brings in with this pull.
Regression wise we have a few strange bugs going on, but for all of them
closer inspection revealed that they've been pre-existing, just now
slightly more likely to be hit. And for most of them we have a patch
already. Otherwise QA has not reported any regressions, and I'm also not
aware of anything bad happening in 3.4.
* tag 'drm-intel-next-2012-04-23' of git://people.freedesktop.org/~danvet/drm-intel: (420 commits)
drm/i915: rc6 residency (fix the fix)
drm/i915/tv: fix open-coded ARRAY_SIZE.
drm/i915: invalidate render cache on gen2
drm/i915: Silence the change of LVDS sync polarity
drm/i915: add generic power management initialization
drm/i915: move clock gating functionality into intel_pm module
drm/i915: move emon functionality into intel_pm module
drm/i915: move drps, rps and rc6-related functions to intel_pm
drm/i915: fix line breaks in intel_pm
drm/i915: move watermarks settings into intel_pm module
drm/i915: move fbc-related functionality into intel_pm module
drm/i915: Refactor get_fence() to use the common fence writing routine
drm/i915: Refactor fence clearing to use the common fence writing routine
drm/i915: Refactor put_fence() to use the common fence writing routine
drm/i915: Prepare to consolidate fence writing
drm/i915: Remove the unsightly "optimisation" from flush_fence()
drm/i915: Simplify fence finding
drm/i915: Discard the unused obj->last_fenced_ring
drm/i915: Remove unused ring->setup_seqno
drm/i915: Remove fence pipelining
...
Rafał Miłecki [Sat, 28 Apr 2012 21:35:24 +0000 (23:35 +0200)]
drm/radeon/kms/hdmi: use relative offsets, official regs
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rafał Miłecki [Sat, 28 Apr 2012 21:35:23 +0000 (23:35 +0200)]
drm/radeon/kms: keep HDMI state in separated variable
If we want hdmi_offset to be relative to the first block, zero value can
be used also for enabled block.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rafał Miłecki [Sat, 28 Apr 2012 21:35:22 +0000 (23:35 +0200)]
drm/radeon/kms: get rid of r600_hdmi_find_free_block
R6xx has routable blocks, but there's nothing wrong in assignment based
on dig_encoder. We didn't really need that algorithm.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rafał Miłecki [Sat, 28 Apr 2012 21:35:21 +0000 (23:35 +0200)]
drm/radeon/kms: get rid of hdmi_config_offset
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Rafał Miłecki [Sat, 28 Apr 2012 21:35:20 +0000 (23:35 +0200)]
drm/radeon/kms: move audio params to separated struct
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 30 Apr 2012 06:26:16 +0000 (07:26 +0100)]
drm/edid: fix collision between two patches breaking build
this fixes a report that the new load code needed to be updated for
ajax's validity changes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Robert Morell [Wed, 25 Apr 2012 09:45:01 +0000 (11:45 +0200)]
drm: fixed: Add dfixed_frac
This helper macro retrieves the fractional part of a fixed20_12 20.12
fixed-point number.
Signed-off-by: Robert Morell <rmorell@nvidia.com>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:38:47 +0000 (14:38 +0100)]
gma500: Set the mapping mask
Some boards such as the Intel D2700MUD allow you to have over 4GB of RAM.
The GTT on the PVR based devices is 32bit however. Hugh Dickins points out
that we should therefore be setting the mapping gfp mask.
This is not the whole fix for the problem. Some further shmem patches will
be needed to deal with the corner cases.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:38:32 +0000 (14:38 +0100)]
gma500: Add the base elements of CDV hotplug support
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:38:20 +0000 (14:38 +0100)]
gma500: Add ops for hotplug support.
This provides the needed callback hooks to add hotplug display support to
the GMA36x0 devices.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:38:07 +0000 (14:38 +0100)]
cdv: continue synching up with updated reference code
In particular clean up the errata handling and correct the crtc masks. We do
this a bit differently using our device abstraction for neatness.
This doesn't address the ACPI opregion and hotplug plumbing, nor the IRQ related
changes that will need. It touches on backlight init but the full backlight
support is not in this change set.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:37:53 +0000 (14:37 +0100)]
gma500: Clean up weirdness in the cdv mode test code
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:37:40 +0000 (14:37 +0100)]
gma500: support 1080p
The problem in console mode is lack of linear memory. We can solve that by
dropping to 16bpp. The mode setting X server will allocate its own GEM
framebuffer in 32bpp and all will be well.
We could just do 16bpp anyway but that would be a regression on the lower
modes as many distributions don't yet ship the generic mode setting KMS
drivers.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:37:27 +0000 (14:37 +0100)]
gma500: panel presence check
Introduce a panel presence check for Cedartrail. Non netbook devices don't
necessarily have a panel attached.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:37:14 +0000 (14:37 +0100)]
gma500: intel_bios updates
Pull in various i915 bits that we will need to begin tackling the LVDS detect
and ACPI events. We try and drift towards the i915 version of the code with
the long term goal that at least some of it can one day be unified.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:37:00 +0000 (14:37 +0100)]
gma500: mark framebuffer pages write combining
We don't want them uncached, combining will do nicely and fixes the performance
problem with the generic modesetting X server.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:36:48 +0000 (14:36 +0100)]
gma500: Update the Cedarview clock handling
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:36:34 +0000 (14:36 +0100)]
gma500: read the PLL bits
We need to pull more stuff from the VBT in order to configure the clocking
correctly in all cases. Add the relevant bits from the other CDV driver work.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alan Cox [Wed, 25 Apr 2012 13:36:13 +0000 (14:36 +0100)]
gma500: Fix leak of uncached page
This was reported a long time ago (and I apologize to whoever it was that
reported it as I've lost the original report).
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ian Pilcher [Sun, 22 Apr 2012 16:40:26 +0000 (11:40 -0500)]
drm: Store vendor IDs directly in the EDID quirk structure
EDID vendor IDs are always 3 characters long (4 with the terminating
0). It doesn't make any sense to have a (possibly 8-byte) pointer
to the ID string in the quirk structure.
Signed-off-by: Ian Pilcher <arequipeno@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Mon, 16 Apr 2012 14:40:08 +0000 (10:40 -0400)]
drm/edid: Try harder to fix up base EDID blocks
Requiring the first byte of the EDID base block header to be 0 means we
don't fix up as many transfer errors as we could. Instead have the
callers specify whether it's meant to be block 0 or not, and
conditionally run header fixup based on that.
Bugzilla: https://bugzilla.redhat.com/812890
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Tue, 24 Apr 2012 08:31:28 +0000 (09:31 +0100)]
vga: fix build when fbdev is a module
This fixes the build breakage reported by Stephen in -next
when merging the drm-next tree.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ville Syrjälä [Thu, 15 Mar 2012 17:58:31 +0000 (19:58 +0200)]
drm: Unify and fix idr error handling
The error handling code w.r.t. idr usage looks inconsistent.
In the case of drm_mode_object_get() and drm_ctxbitmap_next() the error
handling is also incomplete.
Unify the code to follow the same pattern always.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 16 Apr 2012 18:01:17 +0000 (19:01 +0100)]
vga-switcheroo: select VGA arbitration.
Since Matthew's changes we have to select arbitration.
Reported-by: devh on #radeon
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Mon, 16 Apr 2012 20:26:05 +0000 (16:26 -0400)]
efifb: Implement vga_default_device() (v2)
EFI doesn't typically make use of the legacy VGA ROM, but it may still be
configured to pass that through to a given video device. This may lead to
an inaccurate choice of default video device. Add support to efifb to pick
out the correct active video device.
v2: fix if->ifdef
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: hpa@zytor.com
Cc: matt.fleming@intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Mon, 16 Apr 2012 20:26:04 +0000 (16:26 -0400)]
x86: Use vga_default_device() when determining whether an fb is primary
IORESOURCE_ROM_SHADOW is not necessarily an indication that the hardware
is the primary device. Add support for using the vgaarb functions and
fall back if nothing's set them.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: mingo@redhat.com
Acked-by: hpa@zytor.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Mon, 16 Apr 2012 20:26:03 +0000 (16:26 -0400)]
vga-switcheroo: Use vga_default_device()
vga-switcheroo currently changes the default VGA device by fiddling with
the IORESOURCE_ROM_SHADOW flag on the device. This isn't strictly accurate,
since there's no guarantee that switching also changes the ROM decoding.
Switch over to using the vgaarb functions for this.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Matthew Garrett [Mon, 16 Apr 2012 20:26:02 +0000 (16:26 -0400)]
vgaarb: Add support for setting the default video device (v2)
The default VGA device is a somewhat fluid concept on platforms with
multiple GPUs. Add support for setting it so switching code can update
things appropriately, and make sure that the sysfs code returns the right
device if it's changed.
v2: Updated to fix builds when __ARCH_HAS_VGA_DEFAULT_DEVICE is false.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: benh@kernel.crashing.org
Cc: airlied@redhat.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Fri, 30 Mar 2012 12:59:57 +0000 (08:59 -0400)]
drm/radeon/kms: fix up audio interrupt handling
- add support for rs6xx
- add support for DCE4/5
- fixup 6xx/7xx
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Wed, 28 Mar 2012 17:19:06 +0000 (13:19 -0400)]
drm/radeon/kms: add register definitions for audio
This adds register definitions for HDMI/DP audio on
DCE2/3/4/5 hardware.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Mon, 26 Mar 2012 19:12:54 +0000 (15:12 -0400)]
drm/radeon/kms: improve bpc handling (v2)
Improve handling of bpc (bits per color) in radeon.
In most cases we want 8 except for HDMI, DP, LVDS, and eDP.
v2: handle DP better.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Sat, 14 Apr 2012 16:03:10 +0000 (18:03 +0200)]
mm: fixup compilation error due to an asm write through a const pointer
This regression has been introduced in
commit
f56f821feb7b36223f309e0ec05986bb137ce418
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Mar 25 19:47:41 2012 +0200
mm: extend prefault helpers to fault in more than PAGE_SIZE
I have failed to notice this because x86 asm seems to happily compile
things as-is.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Takashi Iwai [Mon, 23 Apr 2012 16:40:49 +0000 (17:40 +0100)]
drm/edid: Add packed attribute to new gtf2 and cvt structs
The new structs added in struct detailed_data_monitor_range must be
marked with packed attribute although the outer struct itself is
already marked as packed. Otherwise these 7-bytes structs may be
aligned, and give the wrong position and size for the data.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Takashi Iwai [Mon, 23 Apr 2012 16:40:33 +0000 (17:40 +0100)]
drm/edid: Add a workaround for 1366x768 HD panel
HD panel (1366x768) found most commonly on laptops can't be represented
exactly in CVT/DMT expression, which leads to 1368x768 instead, because
1366 can't be divided by 8.
Add a hack to convert to 1366x768 manually as an exception.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ben Widawsky [Fri, 20 Apr 2012 18:50:01 +0000 (11:50 -0700)]
drm/i915: rc6 residency (fix the fix)
Chris' fix for my 32b breakage was incorrect. do_div returns a
remainder. Go back to a divide macro which is more 32b friendly.
Tested on x86-64.
This has only been compile tested on 32b systems.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48756
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Sincere-apologies: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
[danvet: fixup 32bit compile-fail.]
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Dave Airlie [Fri, 20 Apr 2012 12:13:54 +0000 (13:13 +0100)]
drm/i915/tv: fix open-coded ARRAY_SIZE.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jim Cromie [Fri, 20 Apr 2012 12:12:16 +0000 (13:12 +0100)]
drm: replace open-coded ARRAY_SIZE with macro
[airlied: fixed one more new one added since]
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Takashi Iwai [Fri, 20 Apr 2012 11:59:33 +0000 (12:59 +0100)]
drm/edid: add missing NULL checks.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:40 +0000 (16:33 -0400)]
drm/edid: Generate modes from extra_modes for range descriptors
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:39 +0000 (16:33 -0400)]
drm/edid: Add extra_modes
Some common sizes that don't show up in DMT.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:38 +0000 (16:33 -0400)]
drm/edid: Give the est3 mode struct a real name
We want the same type for extra modes inferred from ranges.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:37 +0000 (16:33 -0400)]
drm/edid: Update range descriptor struct for EDID 1.4
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:36 +0000 (16:33 -0400)]
drm/edid: Do drm_dmt_modes_for_range() for all range descriptor types
EDID 1.4 retcons the meaning of the "GTF feature" bit to mean "is
continuous frequency", and moves the set of supported timing formulas
into the range descriptor itself. In any event, the range descriptor
can act as a filter on the DMT list without regard to a specific timing
formula.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:35 +0000 (16:33 -0400)]
drm/edid: Fix some comment typos in the DMT mode list
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:34 +0000 (16:33 -0400)]
drm/edid: Add the reduced blanking DMT modes to the DMT list
Copied from the list in xserver.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:33 +0000 (16:33 -0400)]
drm/edid: s/drm_gtf_modes_for_range/drm_dmt_modes_for_range/
Slightly more honest naming.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:32 +0000 (16:33 -0400)]
drm/edid: Remove a misleading comment
mode_in_range() handles what this was warning about.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:31 +0000 (16:33 -0400)]
drm/edid: Allow drm_mode_find_dmt to hunt for reduced-blanking modes
It won't find any, yet. Fix up callers to match: standard mode codes
will look prefer r-b modes for a given size if present, EST3 mode codes
will look for exactly the r-b-ness mentioned in the mode code. This
might mean fewer modes matched for EST3 mode codes between now and when
the DMT mode list regrows the r-b modes, but practically speaking EST3
codes don't exist in the wild.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:30 +0000 (16:33 -0400)]
drm/edid: Rewrite drm_mode_find_dmt search loop
No functional change, but will make an upcoming change clearer.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Adam Jackson [Fri, 13 Apr 2012 20:33:29 +0000 (16:33 -0400)]
drm/edid: Document drm_mode_find_dmt
Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Paulo Zanoni [Fri, 13 Apr 2012 19:31:39 +0000 (16:31 -0300)]
drm: add DRM_MODE_FLAG_DBLCLK to CEA modes requiring it
CEA modes 6, 7, 8, 9, 21, 22, 23, 24, 44, 45, 50, 51, 54, 55, 58 and 59
require sending pixel data 2 times. This doesn't mean the modes will
work yet, but now the drivers know they're different.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Paulo Zanoni [Fri, 13 Apr 2012 19:31:38 +0000 (16:31 -0300)]
drm: add the VIC number to the CEA EDID modes
The specification defines a VIC (Video Identification Code) for each
mode. When we're browsing drm_edid_modes.h, it really helps to have the
number available (otherwise we have to count...). These numbers are also
used in the EDID data (by the CEA-EXT extension block).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Lars-Peter Clausen [Mon, 16 Apr 2012 13:16:19 +0000 (15:16 +0200)]
drm: Parse color format information in CEA blocks
The CEA extension block has a field which describes which YCbCr modes are
supported by the device, use it to fill the drm_display_info color_formats
fields. Also the existence of a CEA extension block is used as indication
that the device supports RGB.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Lars-Peter Clausen [Mon, 16 Apr 2012 13:16:18 +0000 (15:16 +0200)]
drm: Fix EDID color format parsing
The code should obviously check the EDID feature field for EDID feature flags
and not the color_formats field of the drm_display_info struct. Also update the
color_formats field with new modes instead of overwriting the current mode.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ville Syrjälä [Thu, 5 Apr 2012 18:35:18 +0000 (21:35 +0300)]
drm: Add sanity checks to framebuffer creation
Perform some basic sanity check on some of the parameters in
drm_mode_fb_cmd2.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ville Syrjälä [Thu, 5 Apr 2012 18:35:17 +0000 (21:35 +0300)]
drm: Add drm_format_{horz, vert}_chroma_subsampling() utility functions
These functions return the chroma subsampling factors for the specified
pixel format.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ville Syrjälä [Thu, 5 Apr 2012 18:35:16 +0000 (21:35 +0300)]
drm: Add drm_format_plane_cpp() utility function
This function returns the bytes per pixel value based on the pixel
format and plane index.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Ville Syrjälä [Thu, 5 Apr 2012 18:35:15 +0000 (21:35 +0300)]
drm: Move drm_format_num_planes() to drm_crtc.c
There will be a need for this function in drm_crtc.c later. This
avoids making drm_crtc.c depend on drm_crtc_helper.c.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Thu, 19 Apr 2012 14:45:22 +0000 (16:45 +0200)]
drm/i915: invalidate render cache on gen2
It looks like we also need to flush the render cache when we just
invalidate it. This fixes a regression in i-g-t/gem_tiled_blits on my
i855gm. I guess the render cache there is virtually indexed, so we
need to clean it when changing gtt mappings.
This regression has been introduce in
commit
46f0f8d120c4afae53a5670bf3ac80a928340ff3
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Apr 18 11:12:11 2012 +0100
drm/i915: Don't set a MBZ bit in gen2/3 MI_FLUSH
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Sat, 14 Apr 2012 16:41:59 +0000 (17:41 +0100)]
drm/i915: Silence the change of LVDS sync polarity
When the change to start adjusting the sync polarity of the LVDS mode
was introduced in
commit
aa9b500ddf1a6318e7cf8b1754696edddae86db9
Author: Bryan Freed <bfreed@google.com>
Date: Wed Jan 12 13:43:19 2011 -0800
drm/i915: Honour LVDS sync polarity from EDID
we made the change in state verbose so that we could quickly spot any
regressions that made have also been introduced with it. As there do not
appear to have been any, remove the extra logging.
v2: Remove the no longer used variables.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Wed, 18 Apr 2012 18:29:26 +0000 (15:29 -0300)]
drm/i915: add generic power management initialization
This adds intel_pm routine for generic power-related infrastructure
initialization.
v2: now that all the platform-specific stuff is initialized in one place, we
can also add back the static definitions to platform-specific functions which
we abstract now.
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Wed, 18 Apr 2012 18:29:25 +0000 (15:29 -0300)]
drm/i915: move clock gating functionality into intel_pm module
This moves the clock gating-related functions into intel_pm module.
Also, please note that we do change the function type from static to
non-static in this patch for the move, to prevent breaking bisecting with
non-working intermediate commit. Those are returned back to static form in
the following patch which setups a generic PM initialization function,
which was split into a different one to simplify review.
v2: rebase on top of latest drm-intel-next-queued to incorporate all the
changes that went there meanwhile.
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Wed, 18 Apr 2012 18:29:24 +0000 (15:29 -0300)]
drm/i915: move emon functionality into intel_pm module
This moves the Ironlake energy monitoring functionality into intel_pm
module.
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Wed, 18 Apr 2012 18:29:23 +0000 (15:29 -0300)]
drm/i915: move drps, rps and rc6-related functions to intel_pm
This moves DRPS, RPS and RC6-related functionality into intel_pm module.
It also removes the linux/cpufreq.h include from intel_display, as its
only user was the GPU turbo-related functionality in Gen6+ code path.
v2: rebase on top of latest drm-intel-next-queued adding the bits that
shifted around since the last patch.
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Ben Widawsky <benjamin.widawsky@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Wed, 18 Apr 2012 14:51:14 +0000 (11:51 -0300)]
drm/i915: fix line breaks in intel_pm
The previous patch had way too long lines, this fixes them to fit into a
reasonable screen space.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Tue, 17 Apr 2012 01:20:35 +0000 (22:20 -0300)]
drm/i915: move watermarks settings into intel_pm module
Move watermarks and helper functions (such as cxsr and fifo buffers) into
intel_pm module.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Eugeni Dodonov [Tue, 17 Apr 2012 01:20:34 +0000 (22:20 -0300)]
drm/i915: move fbc-related functionality into intel_pm module
This commit moves Frame Buffer Compression-related operations and support
functions into the new intel_pm module.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 17 Apr 2012 14:31:33 +0000 (15:31 +0100)]
drm/i915: Refactor get_fence() to use the common fence writing routine
We can also take advantage of the new 'no retire' mode for seqno waiting
to avoid having to take a reference on the old fence object whilst
flushing an existing fence.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Tue, 17 Apr 2012 14:31:32 +0000 (15:31 +0100)]
drm/i915: Refactor fence clearing to use the common fence writing routine
Now that we have a routine that is able to clear the fences as well as
setup up the register for a tiled object, remove the surplus routines to
clear the fences.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>