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| author |   Dillon Varone <Dillon.Varone@amd.com> | 2022-10-27 16:22:26 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-11-09 18:04:13 -0500 |
| commit | ce902d987a8caa5c9a96080e280ecc992414a127 (patch) | |
| tree | e264edf7fd70838a298af2ad558a6fef3212c1ab /drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h | |
| parent | drm/amd/display: Fix gpio port mapping issue (diff) | |
| download | linux-dev-ce902d987a8caa5c9a96080e280ecc992414a127.tar.xz linux-dev-ce902d987a8caa5c9a96080e280ecc992414a127.zip | |
drm/amd/display: Enforce minimum prefetch time for low memclk on DCN32
[WHY?]
Data return times when using lowest memclk can be <= 60us, which can cause
underflow on high bandwidth displays with a workload.
[HOW?]
Enforce a minimum prefetch time during validation for low memclk modes.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h index d7be01ac0751..64d602e6412f 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h +++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h @@ -367,6 +367,7 @@ struct _vcs_dpi_ip_params_st { /* DM workarounds */ double dsc_delay_factor_wa; // TODO: Remove after implementing root cause fix + double min_prefetch_in_strobe_us; }; struct _vcs_dpi_display_xfc_params_st { |