1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NOUVEAU_FENCE_H__
3 #define __NOUVEAU_FENCE_H__
4 
5 #include <linux/dma-fence.h>
6 #include <nvif/event.h>
7 
8 struct nouveau_drm;
9 struct nouveau_bo;
10 
11 struct nouveau_fence {
12 	struct dma_fence base;
13 
14 	struct list_head head;
15 
16 	struct nouveau_channel __rcu *channel;
17 	unsigned long timeout;
18 };
19 
20 int  nouveau_fence_new(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_bo *, struct nouveau_channel *, bool exclusive, bool intr);
27 
28 struct nouveau_fence_chan {
29 	spinlock_t lock;
30 	struct kref fence_ref;
31 
32 	struct list_head pending;
33 	struct list_head flip;
34 
35 	int  (*emit)(struct nouveau_fence *);
36 	int  (*sync)(struct nouveau_fence *, struct nouveau_channel *,
37 		     struct nouveau_channel *);
38 	u32  (*read)(struct nouveau_channel *);
39 	int  (*emit32)(struct nouveau_channel *, u64, u32);
40 	int  (*sync32)(struct nouveau_channel *, u64, u32);
41 
42 	u32 sequence;
43 	u32 context;
44 	char name[32];
45 
46 	struct nvif_event event;
47 	int notify_ref, dead, killed;
48 };
49 
50 struct nouveau_fence_priv {
51 	void (*dtor)(struct nouveau_drm *);
52 	bool (*suspend)(struct nouveau_drm *);
53 	void (*resume)(struct nouveau_drm *);
54 	int  (*context_new)(struct nouveau_channel *);
55 	void (*context_del)(struct nouveau_channel *);
56 
57 	bool uevent;
58 };
59 
60 #define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
61 
62 void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
63 void nouveau_fence_context_del(struct nouveau_fence_chan *);
64 void nouveau_fence_context_free(struct nouveau_fence_chan *);
65 void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
66 
67 int nv04_fence_create(struct nouveau_drm *);
68 int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
69 
70 int  nv10_fence_emit(struct nouveau_fence *);
71 int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
72 		     struct nouveau_channel *);
73 u32  nv10_fence_read(struct nouveau_channel *);
74 void nv10_fence_context_del(struct nouveau_channel *);
75 void nv10_fence_destroy(struct nouveau_drm *);
76 int  nv10_fence_create(struct nouveau_drm *);
77 
78 int  nv17_fence_create(struct nouveau_drm *);
79 void nv17_fence_resume(struct nouveau_drm *drm);
80 
81 int nv50_fence_create(struct nouveau_drm *);
82 int nv84_fence_create(struct nouveau_drm *);
83 int nvc0_fence_create(struct nouveau_drm *);
84 
85 struct nv84_fence_chan {
86 	struct nouveau_fence_chan base;
87 	struct nouveau_vma *vma;
88 };
89 
90 struct nv84_fence_priv {
91 	struct nouveau_fence_priv base;
92 	struct nouveau_bo *bo;
93 	u32 *suspend;
94 	struct mutex mutex;
95 };
96 
97 int  nv84_fence_context_new(struct nouveau_channel *);
98 
99 #endif
100