-nouveau_display_scanoutpos(struct drm_device *dev, int head, unsigned int flags,
- int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
+nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
+ unsigned int flags, int *vpos, int *hpos,
+ ktime_t *stime, ktime_t *etime,
+ const struct drm_display_mode *mode)