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drm/amd/display: Update DML formula

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[why]
This is to update SW DML implementation.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Ariel Bernstein <Eric.Bernstein@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu
2022-10-20 16:21:13 -04:00
committed by Alex Deucher
parent 667be3ef1b
commit 6139ab41f2
2 changed files with 4 additions and 2 deletions
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3
drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
View File

@@ -1052,7 +1052,8 @@ static bool CalculatePrefetchSchedule(
else
bytes_pp = myPipe->BytePerPixelY + myPipe->BytePerPixelC;
/*rev 99*/
prefetch_bw_pr = dml_min(1, bytes_pp * myPipe->PixelClock / (double) myPipe->DPPPerPlane);
prefetch_bw_pr = bytes_pp * myPipe->PixelClock / (double) myPipe->DPPPerPlane;
prefetch_bw_pr = dml_min(1, myPipe->VRatio) * prefetch_bw_pr;
max_Tsw = dml_max(PrefetchSourceLinesY, PrefetchSourceLinesC) * LineTime;
prefetch_sw_bytes = PrefetchSourceLinesY * swath_width_luma_ub * myPipe->BytePerPixelY + PrefetchSourceLinesC * swath_width_chroma_ub * myPipe->BytePerPixelC;
prefetch_bw_oto = dml_max(bytes_pp * myPipe->PixelClock / myPipe->DPPPerPlane, prefetch_sw_bytes / (dml_max(PrefetchSourceLinesY, PrefetchSourceLinesC) * LineTime));

3
drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
View File

@@ -1074,7 +1074,8 @@ static bool CalculatePrefetchSchedule(
else
bytes_pp = myPipe->BytePerPixelY + myPipe->BytePerPixelC;
/*rev 99*/
prefetch_bw_pr = dml_min(1, bytes_pp * myPipe->PixelClock / (double) myPipe->DPPPerPlane);
prefetch_bw_pr = bytes_pp * myPipe->PixelClock / (double) myPipe->DPPPerPlane;
prefetch_bw_pr = dml_min(1, myPipe->VRatio) * prefetch_bw_pr;
max_Tsw = dml_max(PrefetchSourceLinesY, PrefetchSourceLinesC) * LineTime;
prefetch_sw_bytes = PrefetchSourceLinesY * swath_width_luma_ub * myPipe->BytePerPixelY + PrefetchSourceLinesC * swath_width_chroma_ub * myPipe->BytePerPixelC;
prefetch_bw_oto = dml_max(bytes_pp * myPipe->PixelClock / myPipe->DPPPerPlane, prefetch_sw_bytes / (dml_max(PrefetchSourceLinesY, PrefetchSourceLinesC) * LineTime));