From: Ville Syrjälä <[email protected]> There's some kind of weird corner cases in FBC which requires FBC segments to be separated by at least one extra cacheline. Make sure that is present.
v2: Respin to fit in with skl_fbc_min_cfb_stride() Reviewed-by: Juha-Pekka Heikkila <[email protected]> #v1 Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/display/intel_fbc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index ff05eb83e204..1e7d86f04fe9 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -94,6 +94,13 @@ static unsigned int skl_fbc_min_cfb_stride(const struct intel_fbc_state_cache *c /* minimum segment stride we can use */ stride = cache->plane.src_w * cpp * height / limit; + /* + * Wa_16011863758: icl+ + * Avoid some hardware segment address miscalculation. + */ + if (DISPLAY_VER(i915) >= 11) + stride += 64; + /* * At least some of the platforms require each 4 line segment to * be 512 byte aligned. Just do it always for simplicity. -- 2.32.0
