torvalds/linux
torvalds/linux
2
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code

drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35

Browse Source 
[WHY & HOW]
Mismatch in DCN35 DML2 cause bw validation failed to acquire unexpected DPP pipe to cause
grey screen and system hang. Remove EnhancedPrefetchScheduleAccelerationFinal value override
to match HW spec.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yihan Zhu 2024-09-07 13:25:19 -04:00 committed by Alex Deucher
parent 4ae86dc878
commit 9dad21f910
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c
View File

@ -303,7 +303,6 @@ void build_unoptimized_policy_settings(enum dml_project_id project, struct dml_m
if (project == dml_project_dcn35 || if (project == dml_project_dcn35 ||
project == dml_project_dcn351) { project == dml_project_dcn351) {
policy->DCCProgrammingAssumesScanDirectionUnknownFinal = false; policy->DCCProgrammingAssumesScanDirectionUnknownFinal = false;
policy->EnhancedPrefetchScheduleAccelerationFinal = 0;
policy->AllowForPStateChangeOrStutterInVBlankFinal = dml_prefetch_support_uclk_fclk_and_stutter_if_possible; /*new*/ policy->AllowForPStateChangeOrStutterInVBlankFinal = dml_prefetch_support_uclk_fclk_and_stutter_if_possible; /*new*/
policy->UseOnlyMaxPrefetchModes = 1; policy->UseOnlyMaxPrefetchModes = 1;
} }