drm/nouveau: reduce usage of fence spinlock to when absolutely necessary

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nv04_graph.c b/drivers/gpu/drm/nouveau/nv04_graph.c
index dd09679d31dc..c8973421b635 100644
--- a/drivers/gpu/drm/nouveau/nv04_graph.c
+++ b/drivers/gpu/drm/nouveau/nv04_graph.c
@@ -527,8 +527,7 @@ static int
 nv04_graph_mthd_set_ref(struct nouveau_channel *chan, int grclass,
                         int mthd, uint32_t data)
 {
-        chan->fence.last_sequence_irq = data;
-        nouveau_fence_handler(chan->dev, chan->id);
+        atomic_set(&chan->fence.last_sequence_irq, data);
         return 0;
 }