drm/nouveau/sw/nv04: replace direct context access with GetRef method
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv04_fence.c b/drivers/gpu/drm/nouveau/nv04_fence.c
index f4a2622..f3d705d6 100644
--- a/drivers/gpu/drm/nouveau/nv04_fence.c
+++ b/drivers/gpu/drm/nouveau/nv04_fence.c
@@ -57,8 +57,10 @@
static u32
nv04_fence_read(struct nouveau_channel *chan)
{
- struct nvkm_fifo_chan *fifo = nvxx_fifo_chan(&chan->user);
- return atomic_read(&fifo->refcnt);
+ struct nv04_nvsw_get_ref_v0 args = {};
+ WARN_ON(nvif_object_mthd(&chan->nvsw, NV04_NVSW_GET_REF,
+ &args, sizeof(args)));
+ return args.ref;
}
static void