Commit Graph

2814 Commits

Author SHA1 Message Date
Christian König
4f66c59922 drm/radeon: avoid UVD corruptions on AGP cards
Putting everything into VRAM seems to help.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-15 20:27:54 -04:00
Alex Deucher
855f5f1d88 drm/radeon: fix panel scaling with eDP and LVDS bridges
We were using the wrong set_properly callback so we always
ended up with Full scaling even if something else (Center or
Full aspect) was selected.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-15 20:27:53 -04:00
Alex Deucher
1cd8b21aa2 drm/radeon/dpm: rework auto performance level enable
Calling force_performance_level() from set_power_state()
doesn't work on some asics because the current power
state pointer has not been properly updated at that point.
Move the calls to force_performance_level() out of the
asic specific set_power_state() functions and into
the main power state sequence.

Fixes dpm resume on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15 20:27:52 -04:00
Damien Lespiau
d592fca940 drm/radeon: Fix hmdi typo
I keep making that one, so checked if I was the only one. Apparently
not.

Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15 20:27:51 -04:00
Alex Deucher
c2ee29d002 drm/radeon/dpm/rs780: fix force_performance state for same sclks
If the low and high sclks within a power state are the same,
there no need to enable sclk scaling.  Enabling sclk scaling
can cause display stability issues on some boards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:51 -04:00
Alex Deucher
e40210cca9 drm/radeon/dpm/rs780: don't enable sclk scaling if not required
If the low and high sclks are the same, there is no need to
enable sclk scaling.  This causes display stability issues on
certain boards.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60857

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:50 -04:00
Alex Deucher
ce7b30e025 drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
Since the clock scaling is based on fb divider adjustments,
make sure the other pll parameters are the same.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:49 -04:00
Alex Deucher
c3eaa08827 drm/radeon/dpm/rs780: use drm_mode_vrefresh()
Rather than open coding it.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:48 -04:00
Alex Deucher
b7a5ae9750 drm/radeon/dpm: add bapm callback for kb/kv
This adds the enable_bapm callback for kb/kv.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:40 -04:00
Alex Deucher
11877060e6 drm/radeon/dpm: add bapm callback for trinity
This adds the enable_bapm callback for trinity.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:39 -04:00
Alex Deucher
1c71bda097 drm/radeon/dpm: add infrastructure to properly handle bapm
bapm is a pm feature for sharing the power budget between
the GPU and the CPU on APUs.  It needs to be enabled or
disabled in certain circumstances.  For now, disable it
when on battery and enable it when on AC power.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:39 -04:00
Alex Deucher
64d03221ee drm/radeon/dpm: handle bapm on kb/kv
bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs.  This
patch adds support for enabling or disabling it.
For now disable it by default.  Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:38 -04:00
Alex Deucher
ef4e036584 drm/radeon/dpm: handle bapm on trinity
bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs.  This
patch adds support for enabling or disabling it.
For now disable it by default.  Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.

This patch fixes hangs on boot on certain trinity
laptops when the system is on battery power.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-11 11:44:37 -04:00
Jean Delvare
6ea4e84d20 drm/radeon: expose DPM thermal thresholds through sysfs
The hwmon sysfs interface allows exposing temperature limits. The "max"
and "min" thresholds will be exposed as a critical high limit and its
hysteresis value, respectively. This gives the user a better idea of how
well cooling is doing and whether it is sufficient.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:36 -04:00
Jean Delvare
3e4e21292d drm/radeon: simplify driver data retrieval
You can get the driver data from struct device directly, there's no
need to get the PCI device first.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:36 -04:00
Alex Deucher
91f3a6aaf2 drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2)
The OUTPUT_ENABLE action jumps past the point in the coder where
the data_offset is set on certain rs780 cards.  This worked
previously because the OUTPUT_ENABLE action is always called
immediately after the ENABLE action so the data_offset remained
set.  In 6f8bbaf568c7f2c497558bfd04654c0b9841ad57
(drm/radeon/atom: initialize more atom interpretor elements to 0),
we explictly reset data_offset to 0 between atom calls which then
caused this to fail.  The fix is to just skip calling the
OUTPUT_ENABLE action on the problematic chipsets.  The ENABLE
action does the same thing and more.  Ultimately, we could
probably drop the OUTPUT_ENABLE action all together on DCE3
asics.

fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60791

v2: only rs880 seems to be affected

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-11 11:44:35 -04:00
Alex Deucher
84f3d9f7b4 drm/radeon/dpm: fix fallback for empty UVD clocks
Some older 6xx-7xx boards didn't always fill in the
UVD clocks properly in the UVD power states.  This
leads to the driver trying to set a 0 clock which
results in slow or broken UVD playback.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=69120

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-11 11:44:34 -04:00
Christian König
860024e5c9 drm/radeon: add command submission tracepoint
Neither complete nor perfect, but solves my problem at hand
and might be useful in the future.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:33 -04:00
Christian König
c647dcfde6 drm/radeon: remove stale radeon_fence_retire tracepoint
Not used for quite a while now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:33 -04:00
Alex Deucher
1b9ba70a49 drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback
Certain r6xx boards use the same power state for both UVD
and other things.  Since we don't support UVD on r6xx boards
at the moment, there was no callback installed for setting
the UVD clocks, however, on systems that use the same power
state, this leads to a NULL pointer dereference.  Fill
in a stubbed out implementation for now to avoid the crash.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66963

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: "3.11" <stable@vger.kernel.org>
2013-09-11 11:44:32 -04:00
Alex Deucher
2b19d17fbd drm/radeon: fix typo in PG flags
s/CG/PG/ in the GFX powergating flag name.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:31 -04:00
Alex Deucher
7c4622d541 drm/radeon/cik: update gpu_init for an additional berlin gpu
Sets the right paramters for the new pci id.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-11 11:44:30 -04:00
Alex Deucher
0a5b7b0bd9 drm/radeon: add spinlocks for indirect register accesss
This adds spinlocks to protect access to other
indirect register apertures.  These indirect spaces are
used pretty infrequently and we haven't had an reported
problems, but better safe than sorry.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:29 -04:00
Alex Deucher
fe78118c46 drm/radeon: protect concurrent smc register access with a spinlock
smc registers are access indirectly via the main mmio aperture, so
there may be problems with concurrent access.  This adds a spinlock
to protect access to this register space.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:28 -04:00
Alex Deucher
136de91ea7 drm/radeon: dpm updates for KV
This updates dpm support for KV asics. Notably there
are some changes in acp handling and forcing performance
levels.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:28 -04:00
Dan Carpenter
8c5c6fad61 drm/radeon: signedness bug in kv_dpm.c
The problem here is that "unsigned i" is always greater than or equal to
zero.  These loops mostly have a second check for "(i == 0)" so only the
last two are actually buggy.  The rest is just cleanup.

Bug 1:  kv_force_dpm_highest() doesn't have an "(i == 0)" check so it's
a potential forever loop.

Bug 2: In kv_get_sleep_divider_id_from_clock() there is a typo and the
test is reversed "<=" vs ">" so we never enter the loop.  That means
normally we return KV_MAX_DEEPSLEEP_DIVIDER_ID (5).  The return value
from here is saved in ->DeepSleepDivId and I wasn't able to determine
how that is used.  This is a static checker fix and I have not tested
it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:27 -04:00
Dan Carpenter
41cd0b3b78 drm/radeon: clean up r600_free_extended_power_table()
kfree() can accept NULL pointers so I have removed the checks.  Also
I've used a pointer to shorten the lines.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:26 -04:00
Alex Deucher
8666c076df drm/radeon: add a connector property for audio
This provides a connector property to enable/disable hdmi
audio on the fly.  The default is disabled, but you can select
auto (let the driver detect an audio capable monitor and enable it)
or enabled (force audio enabled).  This also enables audio by
default so you no longer need a module parameter to enable audio.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:25 -04:00
Alex Deucher
7cc0a3d85b drm/radeon/dce6/audio: make sure pin is valid before accessing it
Make sure the audio pin is valid before accessing its members.

Noticed by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:25 -04:00
Anthoine Bourgeois
63580c3e48 drm/radeon/dpm: implement force performance levels for rs780 (v2)
Allows you to limit the selected power levels via sysfs.

Force the feedback divider to select a power level.

v2: fix checking in rs780_force_fbdiv,
    drop a duplicate divider structure in rs780_dpm_force_performance_level,
    Force the voltage level too.

Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:24 -04:00
Alex Deucher
811e4d58ed drm/radeon/si: properly handle internal cp ints
The internal cp interrupts need to be enabled and
disabled at specific times in order clockgating to
work properly.  This patch changes the handling
of the CP_INT_CNTL register to respect the current
state of the internal CP interrupts when making
changes to the other interrupts in CP_INT_CNTL.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:23 -04:00
Alex Deucher
4214faf621 drm/radeon/cik: properly handle internal cp ints
The internal cp interrupts need to be enabled and
disabled at specific times in order clockgating to
work properly.  This patch changes the handling
of the CP_INT_CNTL register to respect the current
state of the internal CP interrupts when making
changes to the other interrupts in CP_INT_CNTL.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-11 11:44:23 -04:00
Stephen Rothwell
ab62e76861 drm/radeon: protect ACPI calls with CONFIG_ACPI
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-09-05 08:19:31 +10:00
Christian König
f33bcab9e8 drm/radeon: support render nodes
Enable support for drm render nodes for radeon by flagging the ioctls that
are safe and just needed for rendering.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-02 10:51:53 +10:00
Dave Airlie
9c725e5bcd Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next
Alex writes:
This is the radeon drm-next request.  Big changes include:
- support for dpm on CIK parts
- support for ASPM on CIK parts
- support for berlin GPUs
- major ring handling cleanup
- remove the old 3D blit code for bo moves in favor of CP DMA or sDMA
- lots of bug fixes

[airlied: fix up a bunch of conflicts from drm_order removal]

* 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits)
  drm/radeon/dpm: make sure dc performance level limits are valid (CI)
  drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
  drm/radeon: gcc fixes for extended dpm tables
  drm/radeon: gcc fixes for kb/kv dpm
  drm/radeon: gcc fixes for ci dpm
  drm/radeon: gcc fixes for si dpm
  drm/radeon: gcc fixes for ni dpm
  drm/radeon: gcc fixes for trinity dpm
  drm/radeon: gcc fixes for sumo dpm
  drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
  drm/radeon: gcc fixes for rv6xx dpm
  drm/radeon: gcc fixes for radeon_atombios.c
  drm/radeon: enable UVD interrupts on CIK
  drm/radeon: fix init ordering for r600+
  drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
  drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init
  drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume
  radeon kms: fix uninitialised hotplug work usage in r100_irq_process()
  drm/radeon/audio: set up the sads on DCE3.2 asics
  drm/radeon: fix handling of variable sized arrays for router objects
  ...

Conflicts:
	drivers/gpu/drm/i915/i915_dma.c
	drivers/gpu/drm/i915/i915_gem_dmabuf.c
	drivers/gpu/drm/i915/intel_pm.c
	drivers/gpu/drm/radeon/cik.c
	drivers/gpu/drm/radeon/ni.c
	drivers/gpu/drm/radeon/r600.c
2013-09-02 09:31:40 +10:00
Alex Deucher
679fe80fbe drm/radeon/dpm: make sure dc performance level limits are valid (CI)
Check to make sure the dc limits are valid before using them.
Some systems may not have a dc limits table.  In that case just
use the ac limits.  This fixes hangs on systems when the power
state is changed when on battery (dc) due to invalid performance
state parameters.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=68708

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:25 -04:00
Alex Deucher
1ff60ddb84 drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
Check to make sure the dc limits are valid before using them.
Some systems may not have a dc limits table.  In that case just
use the ac limits.  This fixes hangs on systems when the power
state is changed when on battery (dc) due to invalid performance
state parameters.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=68708

v2: fix up limits in dpm_init()

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-08-30 16:31:24 -04:00
Alex Deucher
5b7d245009 drm/radeon: gcc fixes for extended dpm tables
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:23 -04:00
Alex Deucher
9af37a7d4e drm/radeon: gcc fixes for kb/kv dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:22 -04:00
Alex Deucher
b309ed9867 drm/radeon: gcc fixes for ci dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:22 -04:00
Alex Deucher
53f3b25287 drm/radeon: gcc fixes for si dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:21 -04:00
Alex Deucher
1e05c4d918 drm/radeon: gcc fixes for ni dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:20 -04:00
Alex Deucher
5e250d20c2 drm/radeon: gcc fixes for trinity dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:19 -04:00
Alex Deucher
d5222ae7ad drm/radeon: gcc fixes for sumo dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:19 -04:00
Alex Deucher
bdcc031bc7 drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:18 -04:00
Alex Deucher
aa842d736e drm/radeon: gcc fixes for rv6xx dpm
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:17 -04:00
Alex Deucher
607f2c2791 drm/radeon: gcc fixes for radeon_atombios.c
Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-08-30 16:31:16 -04:00
Christian König
6a3808b823 drm/radeon: enable UVD interrupts on CIK
The same as on evergreen.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-08-30 16:31:15 -04:00
Alex Deucher
e5903d399a drm/radeon: fix init ordering for r600+
The vram scratch buffer needs to be initialized
before the mc is programmed otherwise we program
0 as the GPU address of the default GPU fault
page.  In most cases we put vram at zero anyway and
reserve a page for the legacy vga buffer so in practice
this shouldn't cause any problems, but better to make
it correct.

Was changed in:
6fab3febf6

Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-08-30 16:31:15 -04:00
Alex Deucher
f30df435ac drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
Avoid needless uvd reprogramming if uvd powergating is disabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-08-30 16:31:14 -04:00