Commit b1a47f53 authored by Jun Lei's avatar Jun Lei Committed by Alex Deucher
Browse files

drm/amd/display: fix DML not calculating delivery time 



[why]
Calculating DCFCLK DS time requires calculating
delivery time for luma/chroma, but this value is
not calculated in DMLv2, it was inadvertently
removed when porting DMLv2

[how]
Add the calculation back

Signed-off-by: default avatarJun Lei <Jun.Lei@amd.com>
Reviewed-by: default avatarDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0ec7d06b

drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c

+27 −0
Original line number Diff line number Diff line
@@ -1475,6 +1475,33 @@ static void dml20v2_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndP 
							/ mode_lib->vba.ReturnBW;



	mode_lib->vba.LastPixelOfLineExtraWatermark = 0;

	for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; ++k) {

			if (mode_lib->vba.VRatio[k] <= 1.0)

				mode_lib->vba.DisplayPipeLineDeliveryTimeLuma[k] =

						(double) mode_lib->vba.SwathWidthY[k]

								* mode_lib->vba.DPPPerPlane[k]

								/ mode_lib->vba.HRatio[k]

								/ mode_lib->vba.PixelClock[k];

			else

				mode_lib->vba.DisplayPipeLineDeliveryTimeLuma[k] =

						(double) mode_lib->vba.SwathWidthY[k]

								/ mode_lib->vba.PSCL_THROUGHPUT_LUMA[k]

								/ mode_lib->vba.DPPCLK[k];



			if (mode_lib->vba.BytePerPixelDETC[k] == 0)

				mode_lib->vba.DisplayPipeLineDeliveryTimeChroma[k] = 0.0;

			else if (mode_lib->vba.VRatio[k] / 2.0 <= 1.0)

				mode_lib->vba.DisplayPipeLineDeliveryTimeChroma[k] =

						mode_lib->vba.SwathWidthY[k] / 2.0

								* mode_lib->vba.DPPPerPlane[k]

								/ (mode_lib->vba.HRatio[k] / 2.0)

								/ mode_lib->vba.PixelClock[k];

			else

				mode_lib->vba.DisplayPipeLineDeliveryTimeChroma[k] =

						mode_lib->vba.SwathWidthY[k] / 2.0

								/ mode_lib->vba.PSCL_THROUGHPUT_CHROMA[k]

								/ mode_lib->vba.DPPCLK[k];

		}



	mode_lib->vba.UrgentExtraLatency = mode_lib->vba.UrgentRoundTripAndOutOfOrderLatency

			+ (mode_lib->vba.TotalActiveDPP * mode_lib->vba.PixelChunkSizeInKByte

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