Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-10-25 06:31:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915: Restore lost glk FBC 16bpp w/a

Browse Source 
We lost the FBC 16bpp 512byte stride requirement on glk when
we switched from display version 9 to 10. Restore the w/a to
avoid enabling FBC with a bad stride and thus display garbage.

Cc: Matt Roper <matthew.d.roper@intel.com>
Fixes: 2b5a4562ed ("drm/i915/display: Simplify GLK display version tests")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210412054607.18133-2-ville.syrjala@linux.intel.com
(cherry picked from commit 87b8c3bc8d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2021-04-12 08:46:03 +03:00 committed by Jani Nikula
parent eef24f1177
commit 604b5bc804
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/display/intel_fbc.c
View File

@ -597,7 +597,7 @@ static bool stride_is_valid(struct drm_i915_private *dev_priv,
return false;
/* Display WA #1105: skl,bxt,kbl,cfl,glk */
if (IS_DISPLAY_VER(dev_priv, 9) &&
if ((IS_DISPLAY_VER(dev_priv, 9) || IS_GEMINILAKE(dev_priv)) &&
modifier == DRM_FORMAT_MOD_LINEAR && stride & 511)
return false;