linux-toradex.git/drivers/gpu, branch v3.18.18

drm/radeon: SDMA fix hibernation (CI GPU family).

2015-07-05T14:12:54+00:00

[ Upstream commit 2ba8d1bb8f6b589037f7db1f01144fc80750e8f7 ]

In order for hibernation to reliably work we need to properly turn
off the SDMA block, sadly after numerous attemps i haven't not found
proper sequence for clean and full shutdown. So simply reset both
SDMA block, this makes hibernation works reliably on sea island GPU
family (CI)

Hibernation and suspend to ram were tested (several times) on :
Bonaire
Hawaii
Mullins
Kaveri
Kabini

Cc: stable@vger.kernel.org
Signed-off-by: Jérôme Glisse 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/radeon: compute ring fix hibernation (CI GPU family) v2.

2015-07-05T14:12:53+00:00

[ Upstream commit 161569deaa03cf3c00ed63352006193f250b0648 ]

In order for hibernation to reliably work we need to cleanup more
thoroughly the compute ring. Hibernation is different from suspend
resume as when we resume from hibernation the hardware is first
fully initialize by regular kernel then freeze callback happens
(which correspond to a suspend inside the radeon kernel driver)
and turn off each of the block. It turns out we were not cleanly
shutting down the compute ring. This patch fix that.

Hibernation and suspend to ram were tested (several times) on :
Bonaire
Hawaii
Mullins
Kaveri
Kabini

Changed since v1:
  - Factor the ring stop logic into a function taking ring as arg.

Cc: stable@vger.kernel.org
Signed-off-by: Jérôme Glisse 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/dp/mst: take lock around looking up the branch device on hpd irq

2015-07-05T14:12:48+00:00

[ Upstream commit 9eb1e57f564d4e6e10991402726cc83fe0b9172f ]

If we are doing an MST transaction and we've gotten HPD and we
lookup the device from the incoming msg, we should take the mgr
lock around it, so that mst_primary and mstb->ports are valid.

Reviewed-by: Daniel Vetter 
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/dp/mst: make sure mst_primary mstb is valid in work function

2015-07-05T14:12:47+00:00

[ Upstream commit 9254ec496a1dbdddeab50021a8138dc627a8166a ]

This validates the mst_primary under the lock, and then calls
into the check and send function. This makes the code a lot
easier to understand the locking rules in.

Signed-off-by: Daniel Vetter 
Reviewed-by: Daniel Vetter 
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/qxl: Do not leak memory if qxl_release_list_add fails

2015-07-04T03:02:24+00:00

[ Upstream commit 8451cc964c1d193b989c41a44e5e77109cc696f8 ]

If the function fails reference counter to the object is not decremented
causing leaks.
This is hard to spot as it happens only on very low memory situations.

Signed-off-by: Frediano Ziglio 
Cc: stable@vger.kernel.org
Reviewed-by: Dave Airlie 
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/qxl: Do not cause spice-server to clean our objects

2015-07-04T03:02:24+00:00

[ Upstream commit 2fa19535ca6abcbfd1ccc9ef694db52f49f77747 ]

If objects are moved back from system memory to VRAM (and spice id
created again) memory is already initialized so we need to set flag
to not clear memory.
If you don't do it after a while using desktop many images turns to
black or transparents.

Signed-off-by: Frediano Ziglio 
Cc: stable@vger.kernel.org
Reviewed-by: Dave Airlie 
Signed-off-by: Dave Airlie 
Signed-off-by: Sasha Levin

drm/radeon: take the mode_config mutex when dealing with hpds (v2)

2015-07-04T03:02:20+00:00

[ Upstream commit 39fa10f7e21574a70cecf1fed0f9b36535aa68a0 ]

Since we are messing with state in the worker.

v2: drop the changes in the mst worker

Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

Revert "drm/radeon: adjust pll when audio is not enabled"

2015-07-03T16:34:49+00:00

[ Upstream commit ebb9bf18636926d5da97136c22e882c5d91fda73 ]

This reverts commit 7fe04d6fa824ccea704535a597dc417c8687f990.

Fixes some systems at the expense of others.  Need to properly
fix the pll divider selection.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=99651

Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

Revert "drm/radeon: don't share plls if monitors differ in audio support"

2015-07-03T16:34:48+00:00

[ Upstream commit 6fb3c025fee16f11ebd73f84f5aba1ee9ce7f8c6 ]

This reverts commit a10f0df0615abb194968fc08147f3cdd70fd5aa5.

Fixes some systems at the expense of others.  Need to properly
fix the pll divider selection.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=99651

Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

drm/radeon: fix freeze for laptop with Turks/Thames GPU.

2015-07-03T16:34:48+00:00

[ Upstream commit 6dfd197283bffc23a2b046a7f065588de7e1fc1e ]

Laptop with Turks/Thames GPU will freeze if dpm is enabled. It seems
the SMC engine is relying on some state inside the CP engine. CP needs
to chew at least one packet for it to get in good state for dynamic
power management.

This patch simply disabled and re-enable DPM after the ring test which
is enough to avoid the freeze.

Signed-off-by: Jérôme Glisse 
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin