1 files changed, 49 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_fence.h b/src/gallium/drivers/nv50/nv50_fence.h
new file mode 100644
index 00000000000..dd0b74e89fa
--- /dev/null
+++ b/src/gallium/drivers/nv50/nv50_fence.h
@@ -0,0 +1,49 @@
+
+#ifndef __NV50_FENCE_H__
+#define __NV50_FENCE_H__
+
+#include "util/u_inlines.h"
+#include "util/u_double_list.h"
+
+#define NV50_FENCE_STATE_AVAILABLE 0
+#define NV50_FENCE_STATE_EMITTED   1
+#define NV50_FENCE_STATE_FLUSHED   2
+#define NV50_FENCE_STATE_SIGNALLED 3
+
+struct nv50_mm_allocation;
+
+struct nv50_fence {
+   struct nv50_fence *next;
+   struct nv50_screen *screen;
+   int state;
+   int ref;
+   uint32_t sequence;
+   struct nv50_mm_allocation *buffers;
+};
+
+void nv50_fence_emit(struct nv50_fence *);
+void nv50_fence_del(struct nv50_fence *);
+
+boolean nv50_fence_wait(struct nv50_fence *);
+boolean nv50_fence_signalled(struct nv50_fence *);
+
+static INLINE void
+nv50_fence_reference(struct nv50_fence **ref, struct nv50_fence *fence)
+{
+   if (*ref) {
+      if (--(*ref)->ref == 0)
+         nv50_fence_del(*ref);
+   }
+   if (fence)
+      ++fence->ref;
+
+   *ref = fence;
+}
+
+static INLINE struct nv50_fence *
+nv50_fence(struct pipe_fence_handle *fence)
+{
+   return (struct nv50_fence *)fence;
+}
+
+#endif // __NV50_FENCE_H__