diff options
| author | Aric Cyr <aric.cyr@amd.com> | 2022-08-21 00:20:30 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-13 21:32:59 +0300 |
| commit | 17529ea2acfa3e2118f5a9ee911e0daf2d88c13f (patch) | |
| tree | ba1f26a49c8bea8ecb0db07a6e0d4246d567b8ac /drivers/gpu/drm/amd/display/dc/dml/dcn20 | |
| parent | 6da15a236c8c80d9f87e4c5216e00ad8f1cace2d (diff) | |
| download | linux-17529ea2acfa3e2118f5a9ee911e0daf2d88c13f.tar.xz | |
drm/amd/display: Optimizations for DML math
[why]
Conditionals in the DML basic math functions significantly impact mode
enumeration.
[how]
Remove conditionals for floor/ceil operations which are used frequently
in DML and add an assertion for invalid callers using zero granuality.
Fix existing callers that rely on 0 granularity.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dcn20')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c index 63bbdf8b8678..edd098c7eb92 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c @@ -4478,17 +4478,17 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode locals->EffectiveLBLatencyHidingSourceLinesLuma), locals->SwathHeightYPerState[i][j][k]); - locals->EffectiveDETLBLinesChroma = dml_floor(locals->LinesInDETChroma + dml_min( - locals->LinesInDETChroma * locals->RequiredDISPCLK[i][j] * locals->BytePerPixelInDETC[k] * - locals->PSCL_FACTOR_CHROMA[k] / locals->ReturnBWPerState[i][0], - locals->EffectiveLBLatencyHidingSourceLinesChroma), - locals->SwathHeightCPerState[i][j][k]); if (locals->BytePerPixelInDETC[k] == 0) { locals->UrgentLatencySupportUsPerState[i][j][k] = locals->EffectiveDETLBLinesLuma * (locals->HTotal[k] / locals->PixelClock[k]) / locals->VRatio[k] - locals->EffectiveDETLBLinesLuma * locals->SwathWidthYPerState[i][j][k] * dml_ceil(locals->BytePerPixelInDETY[k], 1) / (locals->ReturnBWPerState[i][0] / locals->NoOfDPP[i][j][k]); } else { + locals->EffectiveDETLBLinesChroma = dml_floor(locals->LinesInDETChroma + dml_min( + locals->LinesInDETChroma * locals->RequiredDISPCLK[i][j] * locals->BytePerPixelInDETC[k] * + locals->PSCL_FACTOR_CHROMA[k] / locals->ReturnBWPerState[i][0], + locals->EffectiveLBLatencyHidingSourceLinesChroma), + locals->SwathHeightCPerState[i][j][k]); locals->UrgentLatencySupportUsPerState[i][j][k] = dml_min( locals->EffectiveDETLBLinesLuma * (locals->HTotal[k] / locals->PixelClock[k]) / locals->VRatio[k] - locals->EffectiveDETLBLinesLuma * locals->SwathWidthYPerState[i][j][k] * |