diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h index e7571c6f5ead..f2e1fcb668fb 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h @@ -167,10 +167,26 @@ struct hubbub_funcs { void (*force_pstate_change_control)(struct hubbub *hubbub, bool force, bool allow); void (*init_watermarks)(struct hubbub *hubbub); + + /** + * @program_det_size: + * + * DE-Tile buffers (DET) is a memory that is used to convert the tiled + * data into linear, which the rest of the display can use to generate + * the graphics output. One of the main features of this component is + * that each pipe has a configurable DET buffer which means that when a + * pipe is not enabled, the device can assign the memory to other + * enabled pipes to try to be more efficient. + * + * DET logic is handled by dchubbub. Some ASICs provide a feature named + * Configurable Return Buffer (CRB) segments which can be allocated to + * compressed or detiled buffers. + */ void (*program_det_size)(struct hubbub *hubbub, int hubp_inst, unsigned det_buffer_size_in_kbyte); void (*program_compbuf_size)(struct hubbub *hubbub, unsigned compbuf_size_kb, bool safe_to_increase); void (*init_crb)(struct hubbub *hubbub); void (*force_usr_retraining_allow)(struct hubbub *hubbub, bool allow); + void (*set_request_limit)(struct hubbub *hubbub, int memory_channel_count, int words_per_channel); }; struct hubbub { |