diff options
| author | Nicholas Susanto <nicholas.susanto@amd.com> | 2024-02-28 14:14:17 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-03-20 13:38:13 -0400 |
| commit | b72a7e0fd0f8d235f885f84642e5c71f4e058c4b (patch) | |
| tree | 73eef947cf1eb968c031a8880fef6e31d6cd24d7 /drivers | |
| parent | drm/amdgpu: add support for atom fw version v3_5 (diff) | |
| download | linux-b72a7e0fd0f8d235f885f84642e5c71f4e058c4b.tar.gz linux-b72a7e0fd0f8d235f885f84642e5c71f4e058c4b.zip | |
drm/amd/display: Enabling urgent latency adjustment for DCN35
[Why]
Underflow occurs when running netflix in a 4k144 eDP + 4k60 setup.
Increasing DCFCLK or urgent latency watermark fixes the issue. Implementing
this workaround for now while we figure out why this is happenning in DCN.
[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@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 4 |
1 files 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 80bebfc268db..4d7bcda8ef72 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) |