drm/atomic: export drm_atomic_helper_wait_for_fences()

Rob Clark committed 10 years ago

Commit 4c5b7f31 parent 00c96722 files · +15 −2Browse files

Unified · Split

2 files

 }
 EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables);
-static void wait_for_fences(struct drm_device *dev,
+/**
+ * drm_atomic_helper_wait_for_fences - wait for fences stashed in plane state
+ * @dev: DRM device
+ * @state: atomic state object with old state structures
+ *
+ * For implicit sync, driver should fish the exclusive fence out from the
+ * incoming fb's and stash it in the drm_plane_state.  This is called after
+ * drm_atomic_helper_swap_state() so it uses the current plane state (and
+ * just uses the atomic state to find the changed planes)
+ */
+void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
 			    struct drm_atomic_state *state)
 {
 	struct drm_plane *plane;
 		plane->state->fence = NULL;
 	}
 }
+EXPORT_SYMBOL(drm_atomic_helper_wait_for_fences);
 /**
  * drm_atomic_helper_framebuffer_changed - check if framebuffer has changed
 	 * current layout.
 	 */
-	wait_for_fences(dev, state);
+	drm_atomic_helper_wait_for_fences(dev, state);
 	drm_atomic_helper_commit_modeset_disables(dev, state);

@@ -42,6 +42,8 @@ int drm_atomic_helper_commit(struct drm_device *dev, · 41 unmodified lines
42	struct drm_atomic_state *state,	42	struct drm_atomic_state *state,
43	bool async);	43	bool async);
44		44
		45	void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
		46	struct drm_atomic_state *state);
45	bool drm_atomic_helper_framebuffer_changed(struct drm_device *dev,	47	bool drm_atomic_helper_framebuffer_changed(struct drm_device *dev,
46	struct drm_atomic_state *old_state,	48	struct drm_atomic_state *old_state,
47	struct drm_crtc *crtc);	49	struct drm_crtc *crtc);

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