Commit 05ffbdf4 authored Oct 09, 2022 by Sherry Wang Committed by Alex Deucher Apr 21, 2023

drm/amd/display: correct DML calc error



[Why]
DML calculation is different from HW formula.

[How]
Correct the bug to keep it same as HW formula.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Sherry Wang <Yao.Wang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 44243719

drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -4939,8 +4939,8 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
		}
		v->TotImmediateFlipBytes = 0.0;
		for (k = 0; k <= v->NumberOfActivePlanes - 1; k++) {
		v->TotImmediateFlipBytes = v->TotImmediateFlipBytes + v->NoOfDPP[i][j][k] * v->PDEAndMetaPTEBytesPerFrame[i][j][k]
		+ v->MetaRowBytes[i][j][k] + v->DPTEBytesPerRow[i][j][k];
		v->TotImmediateFlipBytes = v->TotImmediateFlipBytes + v->NoOfDPP[i][j][k] * (v->PDEAndMetaPTEBytesPerFrame[i][j][k]
		+ v->MetaRowBytes[i][j][k] + v->DPTEBytesPerRow[i][j][k]);
		}

		for (k = 0; k <= v->NumberOfActivePlanes - 1; k++) {

drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -5274,8 +5274,8 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
		v->TotImmediateFlipBytes = 0.0;
		for (k = 0; k < v->NumberOfActivePlanes; k++) {
		v->TotImmediateFlipBytes = v->TotImmediateFlipBytes
		+ v->NoOfDPP[i][j][k] * v->PDEAndMetaPTEBytesPerFrame[i][j][k] + v->MetaRowBytes[i][j][k]
		+ v->DPTEBytesPerRow[i][j][k];
		+ v->NoOfDPP[i][j][k] * (v->PDEAndMetaPTEBytesPerFrame[i][j][k] + v->MetaRowBytes[i][j][k]
		+ v->DPTEBytesPerRow[i][j][k]);
		}

		for (k = 0; k < v->NumberOfActivePlanes; k++) {

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

+2 −2

Original line number	Diff line number	Diff line
		@@ -5371,8 +5371,8 @@ void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_
		v->TotImmediateFlipBytes = 0.0;
		for (k = 0; k < v->NumberOfActivePlanes; k++) {
		v->TotImmediateFlipBytes = v->TotImmediateFlipBytes
		+ v->NoOfDPP[i][j][k] * v->PDEAndMetaPTEBytesPerFrame[i][j][k] + v->MetaRowBytes[i][j][k]
		+ v->DPTEBytesPerRow[i][j][k];
		+ v->NoOfDPP[i][j][k] * (v->PDEAndMetaPTEBytesPerFrame[i][j][k] + v->MetaRowBytes[i][j][k]
		+ v->DPTEBytesPerRow[i][j][k]);
		}

		for (k = 0; k < v->NumberOfActivePlanes; k++) {