diff mbox series

[15/65] drm/tegra: Annotate dma-fence critical section in commit path

Message ID 20201023122216.2373294-15-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show
Series [01/65] drm/vc4: Drop legacy_cursor_update override | expand

Commit Message

Daniel Vetter Oct. 23, 2020, 12:21 p.m. UTC 
Again ends just after drm_atomic_helper_commit_hw_done(), but with the
twist that we need to make sure we're only annotate the custom
version. And not the other clause which just calls
drm_atomic_helper_commit_tail_rpm(), which is already annotated.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
---
 drivers/gpu/drm/tegra/drm.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index f0f581cd345e..24f353c1cee8 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -65,11 +65,14 @@  static void tegra_atomic_commit_tail(struct drm_atomic_state *old_state)
 	struct tegra_drm *tegra = drm->dev_private;
 
 	if (tegra->hub) {
+		bool fence_cookie = dma_fence_begin_signalling();
+
 		drm_atomic_helper_commit_modeset_disables(drm, old_state);
 		tegra_display_hub_atomic_commit(drm, old_state);
 		drm_atomic_helper_commit_planes(drm, old_state, 0);
 		drm_atomic_helper_commit_modeset_enables(drm, old_state);
 		drm_atomic_helper_commit_hw_done(old_state);
+		dma_fence_end_signalling(fence_cookie);
 		drm_atomic_helper_wait_for_vblanks(drm, old_state);
 		drm_atomic_helper_cleanup_planes(drm, old_state);
 	} else {