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Yihan Zhualexdeucher
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drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35
[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>
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drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.c

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

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