1 #ifndef __NOUVEAU_FENCE_H__
2 #define __NOUVEAU_FENCE_H__
3 
4 struct nouveau_drm;
5 
6 struct nouveau_fence {
7 	struct list_head head;
8 	struct kref kref;
9 
10 	struct nouveau_channel *channel;
11 	unsigned long timeout;
12 	u32 sequence;
13 
14 	void (*work)(void *priv, bool signalled);
15 	void *priv;
16 };
17 
18 int  nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **);
19 struct nouveau_fence *
20 nouveau_fence_ref(struct nouveau_fence *);
21 void nouveau_fence_unref(struct nouveau_fence **);
22 
23 int  nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *);
24 bool nouveau_fence_done(struct nouveau_fence *);
25 int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
26 int  nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *);
27 
28 struct nouveau_fence_chan {
29 	struct list_head pending;
30 	struct list_head flip;
31 
32 	spinlock_t lock;
33 	u32 sequence;
34 };
35 
36 struct nouveau_fence_priv {
37 	void (*dtor)(struct nouveau_drm *);
38 	bool (*suspend)(struct nouveau_drm *);
39 	void (*resume)(struct nouveau_drm *);
40 	int  (*context_new)(struct nouveau_channel *);
41 	void (*context_del)(struct nouveau_channel *);
42 	int  (*emit)(struct nouveau_fence *);
43 	int  (*sync)(struct nouveau_fence *, struct nouveau_channel *,
44 		     struct nouveau_channel *);
45 	u32  (*read)(struct nouveau_channel *);
46 };
47 
48 #define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
49 
50 void nouveau_fence_context_new(struct nouveau_fence_chan *);
51 void nouveau_fence_context_del(struct nouveau_fence_chan *);
52 
53 int nv04_fence_create(struct nouveau_drm *);
54 int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
55 
56 int  nv10_fence_emit(struct nouveau_fence *);
57 int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
58 		     struct nouveau_channel *);
59 u32  nv10_fence_read(struct nouveau_channel *);
60 void nv10_fence_context_del(struct nouveau_channel *);
61 void nv10_fence_destroy(struct nouveau_drm *);
62 int  nv10_fence_create(struct nouveau_drm *);
63 
64 int nv50_fence_create(struct nouveau_drm *);
65 int nv84_fence_create(struct nouveau_drm *);
66 int nvc0_fence_create(struct nouveau_drm *);
67 u64 nvc0_fence_crtc(struct nouveau_channel *, int crtc);
68 
69 int nouveau_flip_complete(void *chan);
70 
71 #endif
72