diff options
| author | Roman Li <Roman.Li@amd.com> | 2022-01-28 12:29:01 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-02-16 17:30:02 -0500 |
| commit | 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b (patch) | |
| tree | 06c9476f09b51fdc338aebea08c9f5c7fe4b9d7d /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h | |
| parent | aa79d3808e8cf1f5fd0f1c20c2e6a6865b5b940c (diff) | |
drm/amd/display: Add dsc pre-validation in atomic check
[Why]
The previous change:
"Add affected crtcs to atomic state for dsc mst unplug"
forces modeset on all added crctc regardless whether timing changed or not.
Per our implementation of dsc we need modeset only if timing changed.
Otherwise dsc can be programmed incorrectly leading to dsc engine hang.
[How]
During atomic_check pre-compute dsc params.
Only set mode_changed if timing is changed.
Reviewed-by: Hersen Wu <hersenwu@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h index 5da28ca03372..c561e0d872d6 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h @@ -60,6 +60,10 @@ bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state, struct dsc_mst_fairness_vars *vars); bool needs_dsc_aux_workaround(struct dc_link *link); + +void pre_validate_dsc(struct drm_atomic_state *state, + struct dm_atomic_state **dm_state_ptr, + struct dsc_mst_fairness_vars *vars); #endif #endif |