From: Nicholas Susanto <nicholas.susanto@xxxxxxx>
[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: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Acked-by: Tom Chung <chiahsuan.chung@xxxxxxx>
Signed-off-by: Nicholas Susanto <nicholas.susanto@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
index add169162f2a..60f251cf973b 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
@@ -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)
--
2.34.1
