diff options
| author | Aurabindo Pillai <aurabindo.pillai@amd.com> | 2023-03-24 10:42:37 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-17 11:48:19 +0200 |
| commit | 3ebe5d6d69ceba8e20b0b74e43192a6c8b49d4f0 (patch) | |
| tree | 0db665c21d48d02c27c392ae39e6e4a5e63b612e | |
| parent | a992c387b41186ab968fd176ca26b432b05c53ec (diff) | |
drm/amd/display: Fix hang when skipping modeset
commit da5e14909776edea4462672fb4a3007802d262e7 upstream.
[Why&How]
When skipping full modeset since the only state change was a front porch
change, the DC commit sequence requires extra checks to handle non
existant plane states being asked to be removed from context.
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index dbdf0e210522..3ca1ee396e4c 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -7248,6 +7248,8 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, continue; dc_plane = dm_new_plane_state->dc_state; + if (!dc_plane) + continue; bundle->surface_updates[planes_count].surface = dc_plane; if (new_pcrtc_state->color_mgmt_changed) { @@ -8562,8 +8564,9 @@ static int dm_update_plane_state(struct dc *dc, return -EINVAL; } + if (dm_old_plane_state->dc_state) + dc_plane_state_release(dm_old_plane_state->dc_state); - dc_plane_state_release(dm_old_plane_state->dc_state); dm_new_plane_state->dc_state = NULL; *lock_and_validation_needed = true; diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 1e47afc4ccc1..f1eda1a6496d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1502,6 +1502,9 @@ bool dc_remove_plane_from_context( struct dc_stream_status *stream_status = NULL; struct resource_pool *pool = dc->res_pool; + if (!plane_state) + return true; + for (i = 0; i < context->stream_count; i++) if (context->streams[i] == stream) { stream_status = &context->stream_status[i]; |