drm/i915: Fix watermark calculations for gen12+ CCS+CC modifier

Take the gen12+ CCS+CC modifier into account when calculating the
watermarks. Othwerwise we'll calculate the watermarks thinking this
Y-tiled modifier is linear.

The rc_surface part is actually a nop since that is not used
for any glk+ platform.

Cc: stable@vger.kernel.org
Fixes: d1e2775e9b96 ("drm/i915/tgl: Add Clear Color support for TGL Render Decompression")
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221003111544.8007-4-ville.syrjala@linux.intel.com
(cherry picked from commit a627455bbe50a111475d7a42beb58fa64bd96c83)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 49fc5e2..3676662 100644 (file)
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -1712,12 +1712,14 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
                      modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
                      modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
                      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
-                     modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS;
+                     modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
+                     modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC;
        wp->x_tiled = modifier == I915_FORMAT_MOD_X_TILED;
        wp->rc_surface = modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
                         modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
                         modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
-                        modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS;
+                        modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
+                        modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC;
        wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
 
        wp->width = width;