tree 90c6e7e2b45b11a12aee0e528890d25c4704ef43
parent 40f4022ef67f30cc0b7ee7453926d1803277d1af
author Paulo Zanoni <paulo.r.zanoni@intel.com> 1442875686 -0300
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1443011959 +0200

drm/i915: reject invalid formats for FBC

This commit is essentially a rewrite of "drm/i915: Check pixel format
for fbc" from Ville Syrjälä. The idea is the same, but the code is
different due to all the changes that happened since his original
patch. So any bugs are due to my bad rewrite.

v2:
  - Drop the alpha formats (Ville).
v3:
  - Drop the stale comment (Ville).

Testcases: igt/kms_frontbuffer_tracking/*fbc*-${format_name}-draw-*
Credits-to: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>