From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Only display workarounds 0391 and 0475 call for disabling FBC with render compression, and those are listed only for pre-prod SKL steppings. So it should be safe to enable FB+CCS on production hardware. AFAIK CCS is limited to 50% bandwidth reduction (perhaps clear color can do better?). FBC can exceed that number by quite a bit, given the right kind of framebuffer contents. So piling on both kinds of compressions could still make sense. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10125 Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_fbc.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index f17a1afb4929..b453fcbd67da 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -1087,18 +1087,7 @@ static bool i8xx_fbc_tiling_valid(const struct intel_plane_state *plane_state) static bool skl_fbc_tiling_valid(const struct intel_plane_state *plane_state) { - const struct drm_framebuffer *fb = plane_state->hw.fb; - - switch (fb->modifier) { - case DRM_FORMAT_MOD_LINEAR: - case I915_FORMAT_MOD_Y_TILED: - case I915_FORMAT_MOD_Yf_TILED: - case I915_FORMAT_MOD_4_TILED: - case I915_FORMAT_MOD_X_TILED: - return true; - default: - return false; - } + return true; } static bool tiling_is_valid(const struct intel_plane_state *plane_state) -- 2.43.0
