diff options
| author | hersen wu <hersenxs.wu@amd.com> | 2022-05-29 10:54:30 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-14 21:38:40 -0400 |
| commit | 71be4b16d39ac8b25a8a04eda66cb65581e1a03c (patch) | |
| tree | 1c667695f27bab6263f2b0e322b70aa1808191a2 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h | |
| parent | b840b64bc8ed3fc46f6d6aa7f97c43862a33bea5 (diff) | |
drm/amd/display: dsc validate fail not pass to atomic check
[Why] when 4k@144hz dp connect to dp1.4 dsc mst hub, requested
bandwidth exceeds caps of dsc hub. but dsc bw valid functions,
increase_dsc_bpp, try_disable_dsc, pre_validate_dsc,
compute_mst_dsc_configs_for_state, do not return false to
atomic check. this cause user mode initiate mode set to kernel,
then cause kernel assert, system hang.
[How] dsc bandwidth valid functions return pass or fail to atomic
check.
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@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 | 2 |
1 files changed, 1 insertions, 1 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 85628ad59e6c..2e13027d9b88 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 @@ -59,7 +59,7 @@ bool compute_mst_dsc_configs_for_state(struct drm_atomic_state *state, bool needs_dsc_aux_workaround(struct dc_link *link); -void pre_validate_dsc(struct drm_atomic_state *state, +bool pre_validate_dsc(struct drm_atomic_state *state, struct dm_atomic_state **dm_state_ptr, struct dsc_mst_fairness_vars *vars); |