diff options
| author |   Matt Roper <matthew.d.roper@intel.com> | 2022-04-11 17:34:02 +0300 |
|---|---|---|
| committer |   Imre Deak <imre.deak@intel.com> | 2022-04-12 12:39:43 +0300 |
| commit | 764b2668cffafdfde47f51f22b0949315bd0b96a (patch) | |
| tree | 1de0c0981f635891dacb6c71fcc058468afac221 /include/uapi/drm | |
| parent | drm/i915/bios: Validate the panel_name table (diff) | |
| download | linux-dev-764b2668cffafdfde47f51f22b0949315bd0b96a.tar.xz linux-dev-764b2668cffafdfde47f51f22b0949315bd0b96a.zip | |
drm/fourcc: Introduce format modifiers for DG2 render and media compression
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
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/drm_fourcc.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index b73fe6797fc3..4a5117715db3 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -584,6 +584,28 @@ 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 * * Macroblocks are laid in a Z-shape, and each pixel data is following the |