1 #ifndef __NOUVEAU_FENCE_H__
2 #define __NOUVEAU_FENCE_H__
3 
4 struct nouveau_fence {
5 	struct list_head head;
6 	struct kref kref;
7 
8 	struct nouveau_channel *channel;
9 	unsigned long timeout;
10 	u32 sequence;
11 
12 	void (*work)(void *priv, bool signalled);
13 	void *priv;
14 };
15 
16 int  nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **);
17 struct nouveau_fence *
18 nouveau_fence_ref(struct nouveau_fence *);
19 void nouveau_fence_unref(struct nouveau_fence **);
20 
21 int  nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *);
22 bool nouveau_fence_done(struct nouveau_fence *);
23 int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
24 int  nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
25 void nouveau_fence_idle(struct nouveau_channel *);
26 void nouveau_fence_update(struct nouveau_channel *);
27 
28 struct nouveau_fence_chan {
29 	struct list_head pending;
30 	spinlock_t lock;
31 	u32 sequence;
32 };
33 
34 struct nouveau_fence_priv {
35 	struct nouveau_exec_engine engine;
36 	int (*emit)(struct nouveau_fence *);
37 	int (*sync)(struct nouveau_fence *, struct nouveau_channel *,
38 		    struct nouveau_channel *);
39 	u32 (*read)(struct nouveau_channel *);
40 };
41 
42 void nouveau_fence_context_new(struct nouveau_fence_chan *);
43 void nouveau_fence_context_del(struct nouveau_fence_chan *);
44 
45 int nv04_fence_create(struct drm_device *dev);
46 int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
47 
48 int nv10_fence_create(struct drm_device *dev);
49 int nv84_fence_create(struct drm_device *dev);
50 int nvc0_fence_create(struct drm_device *dev);
51 
52 #endif
53