linux-stable.git/drivers/gpu, branch v3.11.8

drm/i915: Fix the PPT fdi lane bifurcate state handling on ivb

2013-11-13T03:08:12+00:00

commit 1fbc0d789d12fec313c91912fc11733fdfbab863 upstream.

Originally I've thought that this is leftover hw state dirt from the
BIOS. But after way too much helpless flailing around on my part I've
noticed that the actual bug is when we change the state of an already
active pipe.

For example when we change the fdi lines from 2 to 3 without switching
off outputs in-between we'll never see the crucial on->off transition
in the ->modeset_global_resources hook the current logic relies on.

Patch version 2 got this right by instead also checking whether the
pipe is indeed active. But that in turn broke things when pipes have
been turned off through dpms since the bifurcate enabling is done in
the ->crtc_mode_set callback.

To address this issues discussed with Ville in the patch review move
the setting of the bifurcate bit into the ->crtc_enable hook. That way
we won't wreak havoc with this state when userspace puts all other
outputs into dpms off state. This also moves us forward with our
overall goal to unify the modeset and dpms on paths (which we need to
have to allow runtime pm in the dpms off state).

Unfortunately this requires us to move the bifurcate helpers around a
bit.

Also update the commit message, I've misanalyzed the bug rather badly.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70507
Tested-by: Jan-Michael Brummer 
Cc: Ville Syrjälä 
Reviewed-by: Ville Syrjälä 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: No LVDS hardware on Intel D410PT and D425KT

2013-11-13T03:08:11+00:00

commit 645378d85ee524e429aa4cf52806047b56cdc596 upstream.

The Intel D410PT(LW) and D425KT Mini-ITX desktop boards both show up as
having LVDS but the hardware is not populated. This patch adds them to
the list of such systems. Patch is against 3.11.4

v2: Patch revised to match the D425KT exactly as the D425KTW does have
LVDS.  According to Intel's documentation, the D410PTL and D410PLTW
don't.

Signed-off-by: Rob Pearce 
[danvet: Pimp commit message to my liking and add cc: stable.]
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Add support for pipe_bpp readout

2013-11-13T03:08:11+00:00

commit 4f56d12ebb28fceac4c6e60c8993fbfc122e1399 upstream.

On CTG+ read out the pipe bpp setting from hardware and fill it into
pipe config. Also check it appropriately.

v2: Don't do the pipe_bpp extraction inside the PCH only code block on
    ILK+.
    Avoid the PIPECONF read as we already have read it for the
    PIPECONF_EANBLE check.

Note: This is already in drm-intel-next-queued as
commit 42571aefafb1d330ef84eb29418832f72e7dfb4c
Author: Ville Syrjälä 
Date:   Fri Sep 6 23:29:00 2013 +0300

    drm/i915: Add support for pipe_bpp readout

but is needed for the following bugfix.

Signed-off-by: Ville Syrjälä 
Reviewed-by: Jani Nikula 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Add HSW CRT output readout support

2013-11-13T03:08:11+00:00

commit 7195a50b5c7e00cc3312934fd022c3006b533d12 upstream.

Call intel_ddi_get_config() to get the pipe_bpp settings from
DDI.

The sync polarity settings from DDI are irrelevant for CRT
output, so override them with data from the ADPA register.

Note: This is already merged in drm-intel-next-queued as

commit 6801c18c0a43386bb44712cbc028a7e05adb9f0d
Author: Ville Syrjälä 
Date:   Tue Sep 24 14:24:05 2013 +0300

    drm/i915: Add HSW CRT output readout support

but is required for the following edp bpp bugfix.

v2: Extract intel_crt_get_flags()

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69691
Tested-by: Qingshuai Tian 
Signed-off-by: Ville Syrjälä 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: make missing smc ucode non-fatal (r7xx-SI)

2013-11-13T03:08:11+00:00

commit d83671126dc8e7c0b56c9970ea5ffd08c3b0c645 upstream.

Prevent driver load problems if the smc is missing.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63011

Signed-off-by: Alex Deucher 
Tested-by: Mikko Rapeli 
Signed-off-by: Greg Kroah-Hartman

drm/radeon/atom: workaround vbios bug in transmitter table on rs780

2013-11-13T03:08:11+00:00

commit c23632d4e57c0dd20bf50eca08fa0eb8ad3ff680 upstream.

Some rs780 asics seem to be affected as well.

See:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=91f3a6aaf280294b07c05dfe606e6c27b7ba3c72

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

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

drm: Prevent overwriting from userspace underallocating core ioctl structs

2013-11-13T03:08:11+00:00

commit b062672e305ce071f21eb9e18b102c2a430e0999 upstream.

Apply the protections from

commit 1b2f1489633888d4a06028315dc19d65768a1c05
Author: Dave Airlie 
Date:   Sat Aug 14 20:20:34 2010 +1000

    drm: block userspace under allocating buffer and having drivers overwrite it (v2)

to the core ioctl structs as well, for we found one instance where there
is a 32-/64-bit size mismatch and were guilty of writing beyond the end
of the user's buffer.

Signed-off-by: Chris Wilson 
Cc: Dave Airlie 
Reviewed-by: Ville Syrjälä 
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/i915: Retry DP aux_ch communications with a different clock after failure

2013-11-13T03:08:11+00:00

commit bc86625a4ff7574d4d4dba79723457711eb784e0 upstream.

The w/a db makes the recommendation to both use a non-default value for
the initial clock and then to retry with an alternative clock for
Haswell with the Lakeport PCH.

"On LPT:H, use a divider value of 63 decimal (03Fh). If there is a
failure, retry at least three times with 63, then retry at least three
times with 72 decimal (048h)."

Signed-off-by: Chris Wilson 
Reviewed-by: Jani Nikula 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/i915: split aux_clock_divider logic in a separated function for reuse.

2013-11-13T03:08:11+00:00

commit b84a1cf8950ed075c4ab2630514d4caaae504176 upstream.

Prep patch for reuse aux_clock_divider with EDP_PSR_AUX_CTL setup.

Reviewed-by: Paulo Zanoni 
Signed-off-by: Rodrigo Vivi 
Reviewed-by: Shobhit Kumar 
Signed-off-by: Daniel Vetter 
Signed-off-by: Greg Kroah-Hartman

drm/vmwgfx: Don't kill clients on VT switch

2013-11-13T03:08:11+00:00

commit c4249855ac5b2a383704d31e040d3831d6a25c6f upstream.

DRI clients that tried to grab the TTM lock when the master (X server) was
switched away during a VT switch were sent the SIGTERM signal by the
kernel. Fix this so that they are only sent that signal when the master has
exited.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jakob Bornecrantz 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman