Commit 284f141f authored by Nicholas Susanto's avatar Nicholas Susanto Committed by Alex Deucher
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drm/amd/display: Enable urgent latency adjustments for DCN35 



[Why]
Underflow occurs when running Netflix in a 4k144 eDP + 4k60 HDMI FRL
setup. It is caused by latency varying based on the DCFCLK/FCLK state.

[How]
Enable urgent latency adjustment and match the reference to existing
ASIC that also see increased latency at low FCLK.

Reviewed-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: default avatarTom Chung <chiahsuan.chung@amd.com>
Signed-off-by: default avatarNicholas Susanto <nicholas.susanto@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent dd5a440a

drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c

+2 −2
Original line number Diff line number Diff line
@@ -195,9 +195,9 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_5_soc = { 
	.dcn_downspread_percent = 0.5,

	.gpuvm_min_page_size_bytes = 4096,

	.hostvm_min_page_size_bytes = 4096,

	.do_urgent_latency_adjustment = 0,

	.do_urgent_latency_adjustment = 1,

	.urgent_latency_adjustment_fabric_clock_component_us = 0,

	.urgent_latency_adjustment_fabric_clock_reference_mhz = 0,

	.urgent_latency_adjustment_fabric_clock_reference_mhz = 3000,

};



void dcn35_build_wm_range_table_fpu(struct clk_mgr *clk_mgr)