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[09/11] drm/rcar-du: Annotate dma-fence critical section in commit path

Message ID 20210121152959.1725404-10-daniel.vetter@ffwll.ch (mailing list archive)
State New
Delegated to: Kieran Bingham
Headers show
Series None | expand

Commit Message

Daniel Vetter Jan. 21, 2021, 3:29 p.m. UTC
Ends right after drm_atomic_helper_commit_hw_done(), absolutely
nothing fancy going on here.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
 drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 ++
 1 file changed, 2 insertions(+)
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diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index fdb8a0d127ad..734e2e614fd2 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -442,6 +442,7 @@  static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state)
 	struct drm_crtc_state *crtc_state;
 	struct drm_crtc *crtc;
 	unsigned int i;
+	bool fence_cookie = dma_fence_begin_signalling();
 	 * Store RGB routing to DPAD0 and DPAD1, the hardware will be configured
@@ -468,6 +469,7 @@  static void rcar_du_atomic_commit_tail(struct drm_atomic_state *old_state)
 	drm_atomic_helper_commit_modeset_enables(dev, old_state);
+	dma_fence_end_signalling(fence_cookie);
 	drm_atomic_helper_wait_for_flip_done(dev, old_state);
 	drm_atomic_helper_cleanup_planes(dev, old_state);