linux-stable.git/drivers/gpu, branch linux-3.1.y

radeon: Fix disabling PCI bus mastering on big endian hosts.

2012-01-18T15:31:54+00:00

commit 3df96909b75835d487a9178761622b0cbd7310d4 upstream.

It would previously write basically random bits to PCI configuration space...
Not very surprising that the GPU tended to stop responding completely. The
resulting MCE even froze the whole machine sometimes.

Now resetting the GPU after a lockup has at least a fighting chance of
succeeding.

Signed-off-by: Michel Dänzer 
Reviewed-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: disable writeback on pre-R300 asics

2012-01-18T15:31:54+00:00

commit 28eebb703e28bc455ba704adb1026f76649b768c upstream.

We often end up missing fences on older asics with
writeback enabled which leads to delays in the userspace
accel code, so just disable it by default on those asics.

Reported-by: Helge Deller 
Reported-by: Dave Airlie 
Signed-off-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: workaround invalid AVI infoframe checksum issue

2012-01-18T15:31:54+00:00

commit 92db7f6c860b8190571a9dc1fcbc16d003422fe8 upstream.

This change was verified to fix both issues with no video I've
investigated. I've also checked checksum calculation with fglrx on:
RV620, HD54xx, HD5450, HD6310, HD6320.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms/atom: fix possible segfault in pm setup

2012-01-06T22:17:33+00:00

commit 4376eee92e5a8332b470040e672ea99cd44c826a upstream.

If we end up with no power states, don't look up
current vddc.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44130

agd5f: fix patch formatting

Signed-off-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: bail on BTC parts if MC ucode is missing

2012-01-06T22:17:22+00:00

commit 77e00f2ea94abee1ad13bdfde19cf7aa25992b0e upstream.

We already do this for cayman, need to also do it for
BTC parts.  The default memory and voltage setup is not
adequate for advanced operation.  Continuing will
result in an unusable display.

Signed-off-by: Alex Deucher 
Cc: Jean Delvare 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/i915: prevent division by zero when asking for chipset power

2012-01-06T22:16:50+00:00

commit 4ed0b577457eb6aeb7cdc7e7316576e63d15abb2 upstream.

This prevents an in-kernel division by zero which happens when we are
asking for i915_chipset_val too quickly, or within a race condition
between the power monitoring thread and userspace accesses via debugfs.

The issue can be reproduced easily via the following command:
while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done

This is particularly dangerous because it can be triggered by
a non-privileged user by just reading the debugfs entry.

This issue was also found independently by Konstantin Belousov
, who proposed a similar patch.

Reported-by: Konstantin Belousov 
Acked-by: Jesse Barnes 
Acked-by: Keith Packard 
Reviewed-by: Chris Wilson 
Signed-off-by: Eugeni Dodonov 
Signed-off-by: Keith Packard 
Signed-off-by: Greg Kroah-Hartman

drm/i915: set the right SDVO transcoder for CPT

2012-01-06T22:16:49+00:00

commit 3573c4103f7a486838bb6b5b8353788103f91802 upstream.

v2: add a CPT-specific macro, make code cleaner
v3: fix commit message

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41272
Signed-off-by: Paulo Zanoni 
Reviewed-by: Chris Wilson 
Signed-off-by: Keith Packard 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: fix DP setup on TRAVIS bridges

2011-12-21T20:58:32+00:00

commit cf2aff6eff251b6fbdaf8c253e65ff7c693de8cd upstream.

Supposedly both NUTMEG and TRAVIS should use the same
panel mode, but switching the panel mode for TRAVIS
gets things working.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=41569

Signed-off-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: rework DP bridge checks

2011-12-21T20:58:32+00:00

commit 1d33e1fc8dcce667a70387b666a8b6f60153d90f upstream.

Return the encoder id rather than a boolean.  This is needed
for differentiate between multiple DP bridge chips.

Signed-off-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/kms: cleanup atombios_adjust_pll()

2011-12-21T20:58:32+00:00

commit b4f15f808b9a79b6ad9032fa5f6d8b88e1e1bf11 upstream.

The logic was messy and hard to follow.

Signed-off-by: Alex Deucher 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman