drm/nouveau: share fence structures between nv10+ and nv50 implementations

We already rely on them having the same fields and layout.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nv10_fence.h

@@ -0,0 +1,19 @@
+#ifndef __NV10_FENCE_H_
+#define __NV10_FENCE_H_
+
+#include <core/os.h>
+#include "nouveau_fence.h"
+#include "nouveau_bo.h"
+
+struct nv10_fence_chan {
+	struct nouveau_fence_chan base;
+};
+
+struct nv10_fence_priv {
+	struct nouveau_fence_priv base;
+	struct nouveau_bo *bo;
+	spinlock_t lock;
+	u32 sequence;
+};
+
+#endif