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drm/fourcc: Introduce format modifiers for DG2 render and media compression

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The render/media engines on DG2 unify render compression and media
compression into a single format for the first time, using the Tile 4
layout for main surfaces. The compression algorithm is different from
any previous platform and the display engine must still be configured to
decompress either a render or media compressed surface; as such, we
need new RC and MC framebuffer modifiers to represent buffers in this
format.

v2: Clarify modifier layout description.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220411143405.1073845-2-imre.deak@intel.com
This commit is contained in:
Matt Roper 2022-04-11 17:34:02 +03:00 committed by Imre Deak
parent 5ab58d6996
commit 764b2668cf
1 changed files with 22 additions and 0 deletions
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22
include/uapi/drm/drm_fourcc.h
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@ -583,6 +583,28 @@ extern "C" {
*/
#define I915_FORMAT_MOD_4_TILED fourcc_mod_code(INTEL, 9)
/*
* Intel color control surfaces (CCS) for DG2 render compression.
*
* The main surface is Tile 4 and at plane index 0. The CCS data is stored
* outside of the GEM object in a reserved memory area dedicated for the
* storage of the CCS data for all RC/RC_CC/MC compressible GEM objects. The
* main surface pitch is required to be a multiple of four Tile 4 widths.
*/
#define I915_FORMAT_MOD_4_TILED_DG2_RC_CCS fourcc_mod_code(INTEL, 10)
/*
* Intel color control surfaces (CCS) for DG2 media compression.
*
* 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 RC/RC_CC/MC compressible GEM objects. The main surface
* pitch is required to be a multiple of four Tile 4 widths.
*/
#define I915_FORMAT_MOD_4_TILED_DG2_MC_CCS fourcc_mod_code(INTEL, 11)
/*
* Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
*