Vivante TS (tile-status) buffer modifiers. They can be combined with all of the Vivante color buffer tiling modifiers, so they are kind of a modifier modifier. If a TS modifier is present we have a additional plane for the TS buffer and the modifier defines the layout of this TS buffer.
Signed-off-by: Lucas Stach l.stach@pengutronix.de --- include/uapi/drm/drm_fourcc.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index f76de49c768f..76df2a932637 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -623,6 +623,22 @@ extern "C" { */ #define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4)
+/* + * Vivante TS (tile-status) buffer modifiers. They can be combined with all of + * the color buffer tiling modifiers defined above. When TS is present it's a + * separate buffer containing the clear/compression status of each tile. The + * modifiers are defined as VIVANTE_MOD_TS_c_s, where c is the color buffer tile + * size in bytes covered by one entry in the status buffer and s is the number + * of status bits per entry. + * We reserve the top 8bits of the Vivante modifier space for TS modifiers, as + * future cores might add some more TS layout variations. + */ +#define VIVANTE_MOD_TS_64_4 (1ULL << 48) +#define VIVANTE_MOD_TS_64_2 (2ULL << 48) +#define VIVANTE_MOD_TS_128_4 (3ULL << 48) +#define VIVANTE_MOD_TS_256_4 (4ULL << 48) +#define VIVANTE_MOD_TS_MASK (0xffULL << 48) + /* NVIDIA frame buffer modifiers */
/*