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| author | Nevenko Stupar <Nevenko.Stupar@amd.com> | 2021-07-09 13:05:11 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-21 14:25:58 -0400 |
| commit | 0f984c942cd1703b26dc01351dc47b0c93bc32f3 (patch) | |
| tree | d5e7d038023a6597af35bfbdaa0574486586f5e1 /drivers/gpu/drm/amd/display/dc/inc | |
| parent | 6580b28e0c734cea2f829e97827005c311293cb7 (diff) | |
| download | linux-0f984c942cd1703b26dc01351dc47b0c93bc32f3.tar.bz2 | |
drm/amd/display: Line Buffer changes
DCN 3x increased Line buffer size for DCHUB latency hiding, from 4 lines
of 4K resolution lines to 5 lines of 4K resolution lines. All Line
Buffer can be used as extended memory for P State change latency hiding.
The maximum number of lines is increased to 32 lines. Finally,
LB_MEMORY_CONFIG_1 (LB memory piece 1) and LB_MEMORY _CONFIG_2 (LB
memory piece 2) are not affected, no change in size, only 3 pieces is
affected, i.e., when all 3 pieces are used in both LB_MEMORY_CONFIG_0
and LB_MEMORY_CONFIG_3 (for 4:2:0) modes.
Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/transform.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/transform.h b/drivers/gpu/drm/amd/display/dc/inc/hw/transform.h index 2a0db2b03047..9ac9d5e8df8b 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/transform.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/transform.h @@ -289,6 +289,9 @@ struct dpp_caps { /* DSCL processing pixel data in fixed or float format */ enum dscl_data_processing_format dscl_data_proc_format; + /* max LB partitions */ + unsigned int max_lb_partitions; + /* Calculates the number of partitions in the line buffer. * The implementation of this function is overloaded for * different versions of DSCL LB. |