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authorVille Syrjälä <ville.syrjala@linux.intel.com>2021-04-12 08:46:03 +0300
committerJani Nikula <jani.nikula@intel.com>2021-04-26 11:54:03 +0300
commit604b5bc804ed6a0dee4e6c199854dd1718a23d5a (patch)
treec8781dba908133be46e678709700a73ac3190456
parenteef24f11776cfb028058413062a3c0b84f1bbf11 (diff)
drm/i915: Restore lost glk FBC 16bpp w/a
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: 2b5a4562edd0 ("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 87b8c3bc8d27270c9abd5e895ea9066e918ef89b) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
-rw-r--r--drivers/gpu/drm/i915/display/intel_fbc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 986bbbe3b12f..957252b695d7 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -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;