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drm/amd/display: Fix DML calculation errors

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[Why]
DML calculations differ with DCN3.1 spreadsheet values due to
translations errors from the visual basic code

[How]
Add missing calculations that set the value for DSCDelay

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Susanto 2023-07-21 14:45:34 -04:00 committed by Alex Deucher
parent ced575203a
commit d074e0f9ec
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
View file

@ -2311,6 +2311,7 @@ static void DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPerforman
v->OutputFormat[k],
v->Output[k]) + dscComputeDelay(v->OutputFormat[k], v->Output[k]));
}
v->DSCDelay[k] = v->DSCDelay[k] + (v->HTotal[k] - v->HActive[k]) * dml_ceil((double) v->DSCDelay[k] / v->HActive[k], 1);
v->DSCDelay[k] = v->DSCDelay[k] * v->PixelClock[k] / v->PixelClockBackEnd[k];
} else {
v->DSCDelay[k] = 0;
@ -4719,6 +4720,7 @@ void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_
v->OutputFormat[k],
v->Output[k]) + dscComputeDelay(v->OutputFormat[k], v->Output[k]));
}
v->DSCDelayPerState[i][k] = v->DSCDelayPerState[i][k] + (v->HTotal[k] - v->HActive[k]) * dml_ceil((double) v->DSCDelayPerState[i][k] / v->HActive[k], 1.0);
v->DSCDelayPerState[i][k] = v->DSCDelayPerState[i][k] * v->PixelClock[k] / v->PixelClockBackEnd[k];
} else {
v->DSCDelayPerState[i][k] = 0.0;