On Fri, Aug 16, 2024 at 02:52:28PM GMT, Juha-Pekka Heikkila wrote:
Add Tile4 type ccs modifiers to indicate presence of compression on Xe2.
Here is defined I915_FORMAT_MOD_4_TILED_LNL_CCS which is meant for
integrated graphics with igpu related limitations
Here is also defined I915_FORMAT_MOD_4_TILED_BMG_CCS which is meant
for discrete graphics with dgpu related limitations
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx>
not very fond of adding the platform names, but looks like this was
always the approach, so this keeps the consistency.
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
We will need an ack from drm-misc maintainer to merge this through
drm-intel. Let's add some Cc.
Lucas De Marchi
---
include/uapi/drm/drm_fourcc.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 2d84a8052b15..78abd819fd62 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -702,6 +702,31 @@ extern "C" {
*/
#define I915_FORMAT_MOD_4_TILED_MTL_RC_CCS_CC fourcc_mod_code(INTEL, 15)
+/*
+ * Intel Color Control Surfaces (CCS) for graphics ver. 20 unified compression
+ * on integrated graphics
+ *
+ * The main surface is Tile 4 and at plane index 0. For semi-planar formats
+ * like NV12, the Y and UV planes are Tile 4 and are located at plane indices
+ * 0 and 1, respectively. The CCS for all planes are stored outside of the
+ * GEM object in a reserved memory area dedicated for the storage of the
+ * CCS data for all compressible GEM objects.
+ */
+#define I915_FORMAT_MOD_4_TILED_LNL_CCS fourcc_mod_code(INTEL, 16)
+
+/*
+ * Intel Color Control Surfaces (CCS) for graphics ver. 20 unified compression
+ * on discrete graphics
+ *
+ * The main surface is Tile 4 and at plane index 0. For semi-planar formats
+ * like NV12, the Y and UV planes are Tile 4 and are located at plane indices
+ * 0 and 1, respectively. The CCS for all planes are stored outside of the
+ * GEM object in a reserved memory area dedicated for the storage of the
+ * CCS data for all compressible GEM objects. The GEM object must be stored in
+ * contiguous memory with a size aligned to 64KB
+ */
+#define I915_FORMAT_MOD_4_TILED_BMG_CCS fourcc_mod_code(INTEL, 17)
+
/*
* Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
*
--
2.45.2
