drm/nv50: enable page flipping
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 3a30d82..d6da139 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -297,6 +297,14 @@
mutex_lock(&chan->mutex);
/* Emit a page flip */
+ if (dev_priv->card_type >= NV_50) {
+ ret = nv50_display_flip_next(crtc, fb, chan);
+ if (ret) {
+ nouveau_channel_put(&chan);
+ goto fail_unreserve;
+ }
+ }
+
ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
nouveau_channel_put(&chan);
if (ret)
@@ -347,7 +355,8 @@
}
list_del(&s->head);
- *ps = *s;
+ if (ps)
+ *ps = *s;
kfree(s);
spin_unlock_irqrestore(&dev->event_lock, flags);