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drm/i915: Introduce new Tile 4 format 

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.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Acked-by: Nanley Chery <nanley.g.chery@intel.com>
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220118115544.15116-2-stanislav.lisovskiy@intel.com
This commit is contained in:
Stanislav Lisovskiy 2022-01-18 13:55:43 +02:00
parent 30424ebae8
commit c6e7deb0f0
1 changed files with 11 additions and 0 deletions
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include/uapi/drm/drm_fourcc.h
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@ -572,6 +572,17 @@ 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
*