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Commit 73f1a585 authored by Philipp Zabel's avatar Philipp Zabel Committed by Daniel Vetter
Browse files

drm/fourcc: add vivante tiled layout format modifiers 



Vivante GC hardware uses simple 4x4 tiled and nested 64x64 supertiled
formats as well as so-called split-tiled variants for dual-pipe
hardware, where even and odd tiles start at different base addresses.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Reviewed-By: default avatarWladimir J. van der Laan <laanwj@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126153217.26916-1-p.zabel@pengutronix.de
parent fcc8a22c

include/uapi/drm/drm_fourcc.h

+41 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ extern "C" { 
#define DRM_FORMAT_MOD_VENDOR_NV      0x03

#define DRM_FORMAT_MOD_VENDOR_SAMSUNG 0x04

#define DRM_FORMAT_MOD_VENDOR_QCOM    0x05

#define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06

/* add more to the end as needed */



#define fourcc_mod_code(vendor, val) \
@@ -251,6 +252,46 @@ extern "C" { 
 */

#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE	fourcc_mod_code(SAMSUNG, 1)



/* Vivante framebuffer modifiers */



/*

 * Vivante 4x4 tiling layout

 *

 * This is a simple tiled layout using tiles of 4x4 pixels in a row-major

 * layout.

 */

#define DRM_FORMAT_MOD_VIVANTE_TILED		fourcc_mod_code(VIVANTE, 1)



/*

 * Vivante 64x64 super-tiling layout

 *

 * This is a tiled layout using 64x64 pixel super-tiles, where each super-tile

 * contains 8x4 groups of 2x4 tiles of 4x4 pixels (like above) each, all in row-

 * major layout.

 *

 * For more information: see

 * https://github.com/etnaviv/etna_viv/blob/master/doc/hardware.md#texture-tiling

 */

#define DRM_FORMAT_MOD_VIVANTE_SUPER_TILED	fourcc_mod_code(VIVANTE, 2)



/*

 * Vivante 4x4 tiling layout for dual-pipe

 *

 * Same as the 4x4 tiling layout, except every second 4x4 pixel tile starts at a

 * different base address. Offsets from the base addresses are therefore halved

 * compared to the non-split tiled layout.

 */

#define DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED	fourcc_mod_code(VIVANTE, 3)



/*

 * Vivante 64x64 super-tiling layout for dual-pipe

 *

 * Same as the 64x64 super-tiling layout, except every second 4x4 pixel tile

 * starts at a different base address. Offsets from the base addresses are

 * therefore halved compared to the non-split super-tiled layout.

 */

#define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4)



#if defined(__cplusplus)

}

#endif