Commit 79ce0580 authored by Ben Davis's avatar Ben Davis Committed by Liviu Dudau
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drm: drm_fourcc: Add uncompressed AFBC modifier 



AFBC has a mode that guarantees use of AFBC with an uncompressed
payloads, we add a new modifier to support this mode.

V2: updated modifier comment

Signed-off-by: default avatarBen Davis <ben.davis@arm.com>
Acked-by: default avatarLiviu Dudau <liviu.dudau@arm.com>
Signed-off-by: default avatarLiviu Dudau <Liviu.Dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430083220.17347-1-ben.davis@arm.com
parent 94b292b2

include/uapi/drm/drm_fourcc.h

+12 −0
Original line number Diff line number Diff line
@@ -808,6 +808,18 @@ extern "C" { 
 */

#define AFBC_FORMAT_MOD_BCH     (1ULL << 11)



/* AFBC uncompressed storage mode

 *

 * Indicates that the buffer is using AFBC uncompressed storage mode.

 * In this mode all superblock payloads in the buffer use the uncompressed

 * storage mode, which is usually only used for data which cannot be compressed.

 * The buffer layout is the same as for AFBC buffers without USM set, this only

 * affects the storage mode of the individual superblocks. Note that even a

 * buffer without USM set may use uncompressed storage mode for some or all

 * superblocks, USM just guarantees it for all.

 */

#define AFBC_FORMAT_MOD_USM	(1ULL << 12)



/*

 * Arm 16x16 Block U-Interleaved modifier

 *