1 files changed, 18 insertions, 0 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 44e070800b6d..3c90563e1a54 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -581,6 +581,24 @@ struct drm_crtc_funcs {
                          uint32_t flags);
 
         /**
+         * @page_flip_target:
+         *
+         * Same as @page_flip but with an additional parameter specifying the
+         * absolute target vertical blank period (as reported by
+         * drm_crtc_vblank_count()) when the flip should take effect.
+         *
+         * Note that the core code calls drm_crtc_vblank_get before this entry
+         * point, and will call drm_crtc_vblank_put if this entry point returns
+         * any non-0 error code. It's the driver's responsibility to call
+         * drm_crtc_vblank_put after this entry point returns 0, typically when
+         * the flip completes.
+         */
+        int (*page_flip_target)(struct drm_crtc *crtc,
+                                struct drm_framebuffer *fb,
+                                struct drm_pending_vblank_event *event,
+                                uint32_t flags, uint32_t target);
+
+        /**
          * @set_property:
          *
          * This is the legacy entry point to update a property attached to the