From: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Gen-12 display can decompress surfaces compressed by the media engine, add
a new modifier as the driver needs to know the surface was compressed by
the media or render engine.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
include/uapi/drm/drm_fourcc.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index fb7270bf9670..ec8351922265 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -420,6 +420,16 @@ extern "C" {
*/
#define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS fourcc_mod_code(INTEL, 6)
+/*
+ * Intel color control surfaces (CCS) for Gen-12 media compression.
+ *
+ * The main surface is Y-tiled and is at plane index 0 whereas CCS is linear and
+ * at index 1. A CCS cache line corresponds to an area of 4x1 tiles in the main
+ * surface. The main surface pitch is required to be a multiple of 4 tile
+ * widths.
+ */
+#define I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS fourcc_mod_code(INTEL, 7)
+
/*
* Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
*
--
2.21.0
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