drm/tidss: Annotate dma-fence critical section in commit path

Ends right after hw_done(), totally standard case. Acked-by: Jyri Sarha <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Cc: Jyri Sarha <[email protected]> Cc: Tomi Valkeinen <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
beagleboard · Feb 23, 2021 · 4d56a4f · 4d56a4f
1 parent 820c170
commit 4d56a4f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c
@@ -4,6 +4,8 @@
  * Author: Tomi Valkeinen <[email protected]>
  */
 
+#include <linux/dma-fence.h>
+
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
@@ -26,6 +28,7 @@ static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
 {
 	struct drm_device *ddev = old_state->dev;
 	struct tidss_device *tidss = to_tidss(ddev);
+	bool fence_cookie = dma_fence_begin_signalling();
 
 	dev_dbg(ddev->dev, "%s\n", __func__);
 
@@ -36,6 +39,7 @@ static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state)
 	drm_atomic_helper_commit_modeset_enables(ddev, old_state);
 
 	drm_atomic_helper_commit_hw_done(old_state);
+	dma_fence_end_signalling(fence_cookie);
 	drm_atomic_helper_wait_for_flip_done(ddev, old_state);
 
 	drm_atomic_helper_cleanup_planes(ddev, old_state);