From: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
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@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 ++++-
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
2 files changed, 7 insertions(+), 1 deletion(-)
--- 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(stru
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
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;
--- 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];
