From: Nicholas Susanto <nicholas.susanto@xxxxxxx>
[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@xxxxxxx>
Reviewed-by: Jun Lei <jun.lei@xxxxxxx>
Acked-by: Stylon Wang <stylon.wang@xxxxxxx>
Signed-off-by: Nicholas Susanto <nicholas.susanto@xxxxxxx>
---
.../gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index a94aa0f21a7f..88e56889a68c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -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;
--
2.42.0
