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drm/amd/display: Don't set dram clock change requirement for SubVP

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[Description]
In general cases we want to keep the dram clock change requirement (we
prefer configs that support MCLK switch). Only override to false for
SubVP.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2022-06-16 10:58:08 -04:00 • committed by Alex Deucher
parent 0147064588
commit fff7eb56b3
2 changed files with 2 additions and 1 deletions
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1
drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
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@ -184,6 +184,7 @@ struct _vcs_dpi_soc_bounding_box_st {
double max_avg_fabric_bw_use_normal_percent;
double max_avg_dram_bw_use_normal_strobe_percent;
enum dm_prefetch_modes allow_for_pstate_or_stutter_in_vblank_final;
bool dram_clock_change_requirement_final;
double writeback_latency_us;
double ideal_dram_bw_after_urgent_percent;
double pct_ideal_dram_sdp_bw_after_urgent_pixel_only; // PercentOfIdealDRAMFabricAndSDPPortBWReceivedAfterUrgLatencyPixelDataOnly

2
drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
View file

@ -343,7 +343,7 @@ static void fetch_socbb_params(struct display_mode_lib *mode_lib)
mode_lib->vba.MaxAveragePercentOfIdealDRAMBWDisplayCanUseInNormalSystemOperationSTROBE =
soc->max_avg_dram_bw_use_normal_strobe_percent;
mode_lib->vba.DRAMClockChangeRequirementFinal = 1;
mode_lib->vba.DRAMClockChangeRequirementFinal = soc->dram_clock_change_requirement_final;
mode_lib->vba.FCLKChangeRequirementFinal = 1;
mode_lib->vba.USRRetrainingRequiredFinal = 1;
mode_lib->vba.ConfigurableDETSizeEnFinal = 0;