From: Ville Syrjälä Date: Mon, 12 Apr 2021 05:46:03 +0000 (+0300) Subject: drm/i915: Restore lost glk FBC 16bpp w/a X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=604b5bc804ed6a0dee4e6c199854dd1718a23d5a;p=linux.git 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 Fixes: 2b5a4562edd0 ("drm/i915/display: Simplify GLK display version tests") Reviewed-by: Jani Nikula Signed-off-by: Ville Syrjälä Signed-off-by: Jani Nikula 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 --- diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 986bbbe3b12fd..957252b695d70 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;