diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-09-29 11:37:33 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-19 17:19:06 -0400 |
| commit | 641e0e1f5d7f9793a5785ae8aac4d5dc5b4aa9d6 (patch) | |
| tree | 51e3a7d767309183254a4ca42f621b3dc72d409c /drivers/gpu/drm | |
| parent | 3cf79bb772a4f95770a3b3670474058addb7d14f (diff) | |
| download | linux-641e0e1f5d7f9793a5785ae8aac4d5dc5b4aa9d6.tar.bz2 | |
drm/amd/display: Fix prefetch bandwidth calculation for DCN3.1
[Why]
Prefetch BW calculated is lower than the DML reference because of a
porting error that's excluding cursor and row bandwidth from the
pixel data bandwidth.
[How]
Change the dml_max4 to dml_max3 and include cursor and row bandwidth
in the same calculation as the rest of the pixel data during vactive.
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c index ce55c9caf9a2..d58925cff420 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c @@ -5398,9 +5398,9 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l v->MaximumReadBandwidthWithPrefetch = v->MaximumReadBandwidthWithPrefetch - + dml_max4( - v->VActivePixelBandwidth[i][j][k], - v->VActiveCursorBandwidth[i][j][k] + + dml_max3( + v->VActivePixelBandwidth[i][j][k] + + v->VActiveCursorBandwidth[i][j][k] + v->NoOfDPP[i][j][k] * (v->meta_row_bandwidth[i][j][k] + v->dpte_row_bandwidth[i][j][k]), |