On Thu, Apr 30, 2020 at 09:32:20AM +0100, Ben Davis wrote:
> 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: Ben Davis <ben.davis@xxxxxxx>
Acked-by: Liviu Dudau <liviu.dudau@xxxxxxx>
Best regards,
Liviu
> ---
> include/uapi/drm/drm_fourcc.h | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 8bc0b31597d8..ec46c231af43 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -780,6 +780,18 @@ 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
> *
> --
> 2.24.0
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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