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drm/amd/display: remove number of DSC slices override in DML

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[why]
Number of DSC slices is an input to DML with high dependency
on display specific capability. This isn't something DML can decide
on its own. DML has to use the original number of DSC slices input
to DML during validation without modification. Otherwise the
computed DSC delay will not reflect the current configuration
and therefore causes validation failures.

[how]
Remove DML override for number of DSC slices parameter.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2022-06-29 14:55:43 -04:00 • committed by Alex Deucher
parent 473683a034
commit e6c64182ed
1 changed files with 0 additions and 20 deletions
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20
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
View file

@ -1897,26 +1897,6 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
v->MaximumSwathWidthInLineBufferChroma);
}
/*Number Of DSC Slices*/
for (k = 0; k < mode_lib->vba.NumberOfActiveSurfaces; ++k) {
if (mode_lib->vba.BlendingAndTiming[k] == k) {
if (mode_lib->vba.PixelClockBackEnd[k] > 4800) {
mode_lib->vba.NumberOfDSCSlices[k] = dml_ceil(mode_lib->vba.PixelClockBackEnd[k] / 600,
4);
} else if (mode_lib->vba.PixelClockBackEnd[k] > 2400) {
mode_lib->vba.NumberOfDSCSlices[k] = 8;
} else if (mode_lib->vba.PixelClockBackEnd[k] > 1200) {
mode_lib->vba.NumberOfDSCSlices[k] = 4;
} else if (mode_lib->vba.PixelClockBackEnd[k] > 340) {
mode_lib->vba.NumberOfDSCSlices[k] = 2;
} else {
mode_lib->vba.NumberOfDSCSlices[k] = 1;
}
} else {
mode_lib->vba.NumberOfDSCSlices[k] = 0;
}
}
dml32_CalculateSwathAndDETConfiguration(
mode_lib->vba.DETSizeOverride,
mode_lib->vba.UsesMALLForPStateChange,