[PATCH 1/5] drm/i915: Fix watermark calculations for gen12+ CCS modifiers

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Take the gen12+ CCS modifiers into account when calculating the
watermarks. Othwerwise we'll calculate the watermarks thinking these
Y-tiled modifiers are linear.

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

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 2dfbf9d2873a ("drm/i915/tgl: Gen-12 display can decompress surfaces compressed by the media engine")
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/display/skl_watermark.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 01b0932757ed..49fc5e2b56fd 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -1710,10 +1710,14 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
 		      modifier == I915_FORMAT_MOD_4_TILED ||
 		      modifier == I915_FORMAT_MOD_Yf_TILED ||
 		      modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
-		      modifier == I915_FORMAT_MOD_Yf_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;
 	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_Yf_TILED_CCS ||
+			 modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+			 modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS;
 	wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier);
 
 	wp->width = width;
-- 
2.35.1




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