drm/i915: Fix watermark calculations for DG2 CCS+CC modifier

commit b2e3a1a upstream.

Take the DG2 CCS+CC modifier into account when calculating the
watermarks. Othwerwise we'll calculate the watermarks thinking this
tile-4 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: 680025d ("drm/i915/dg2: Add support for DG2 clear color compression")
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/20221003111544.8007-6-ville.syrjala@linux.intel.com
(cherry picked from commit 334810f)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/gpu/drm/i915/intel_pm.c

@@ -5313,15 +5313,17 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
 		      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS ||
 		      modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
 		      modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS ||
-		      modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS;
+		      modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS ||
+		      modifier == I915_FORMAT_MOD_4_TILED_DG2_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_RC_CCS_CC ||
 			 modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS ||
-			 modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS;
+			 modifier == I915_FORMAT_MOD_4_TILED_DG2_MC_CCS ||
+			 modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC;
 	wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
 
 	wp->width = width;