tree b71211080b31619a8c95c4c437b641823af8f3f0
parent b8bf5d7fe0dee64ed0a73fa1e95ba8e464d605da
author Paulo Zanoni <paulo.r.zanoni@intel.com> 1442254799 -0300
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1443011958 +0200

drm/i915: don't enable FBC when pixel rate exceeds 95% on HSW/BDW

BSpec says we shouldn't enable FBC on HSW/BDW when the pipe pixel rate
exceeds 95% of the core display clock.

v2:
  - HSW also needs the WA (Ville).
  - Add the WA name (Ville).
  - Use the current cdclk (Ville).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>