-----Original Message----- From: Lisovskiy, Stanislav stanislav.lisovskiy@intel.com Sent: Thursday, December 9, 2021 5:47 AM To: intel-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org; Lisovskiy, Stanislav stanislav.lisovskiy@intel.com; Saarinen, Jani jani.saarinen@intel.com; C, Ramalingam ramalingam.c@intel.com; ville.syrjala@linux.intel.com; Deak, Imre imre.deak@intel.com; Chery, Nanley G nanley.g.chery@intel.com Subject: [PATCH 1/2] drm/i915: Introduce new Tile 4 format
We want this patch to be 2/2, right? That way, we expose public kernel support for the format after the kernel gains internal support for it.
With that fixed, this patch is:
Acked-by: Nanley Chery nanley.g.chery@intel.com
Alternatively, you could apply the ack to the prior combined patch if you'd like.
-Nanley
This tiling layout uses 4KB tiles in a row-major layout. It has the same shape as Tile Y at two granularities: 4KB (128B x 32) and 64B (16B x 4). It only differs from Tile Y at the 256B granularity in between. At this granularity, Tile Y has a shape of 16B x 32 rows, but this tiling has a shape of 64B x 8 rows.
Signed-off-by: Stanislav Lisovskiy stanislav.lisovskiy@intel.com
include/uapi/drm/drm_fourcc.h | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 7f652c96845b..a146c6df1066 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -565,6 +565,17 @@ extern "C" { */ #define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC fourcc_mod_code(INTEL, 8)
+/*
- Intel Tile 4 layout
- This is a tiled layout using 4KB tiles in a row-major layout. It has
+the same
- shape as Tile Y at two granularities: 4KB (128B x 32) and 64B (16B x
+4). It
- only differs from Tile Y at the 256B granularity in between. At this
- granularity, Tile Y has a shape of 16B x 32 rows, but this tiling
+has a shape
- of 64B x 8 rows.
- */
+#define I915_FORMAT_MOD_4_TILED fourcc_mod_code(INTEL, 9)
/*
- Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
-- 2.24.1.485.gad05a3d8e5