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_create(struct nouveau_fence **, struct nouveau_channel *);
21 int  nouveau_fence_new(struct nouveau_fence **, struct nouveau_channel *);
22 void nouveau_fence_unref(struct nouveau_fence **);
23 
24 int  nouveau_fence_emit(struct nouveau_fence *);
25 bool nouveau_fence_done(struct nouveau_fence *);
26 int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
27 int  nouveau_fence_sync(struct nouveau_bo *, struct nouveau_channel *, bool exclusive, bool intr);
28 
29 struct nouveau_fence_chan {
30 	spinlock_t lock;
31 	struct kref fence_ref;
32 
33 	struct list_head pending;
34 	struct list_head flip;
35 
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 	int  (*emit32)(struct nouveau_channel *, u64, u32);
41 	int  (*sync32)(struct nouveau_channel *, u64, u32);
42 
43 	u32 sequence;
44 	u32 context;
45 	char name[32];
46 
47 	struct nvif_event event;
48 	int notify_ref, dead, killed;
49 };
50 
51 struct nouveau_fence_priv {
52 	void (*dtor)(struct nouveau_drm *);
53 	bool (*suspend)(struct nouveau_drm *);
54 	void (*resume)(struct nouveau_drm *);
55 	int  (*context_new)(struct nouveau_channel *);
56 	void (*context_del)(struct nouveau_channel *);
57 
58 	bool uevent;
59 };
60 
61 #define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
62 
63 void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
64 void nouveau_fence_context_del(struct nouveau_fence_chan *);
65 void nouveau_fence_context_free(struct nouveau_fence_chan *);
66 void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
67 
68 int nv04_fence_create(struct nouveau_drm *);
69 int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
70 
71 int  nv10_fence_emit(struct nouveau_fence *);
72 int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
73 		     struct nouveau_channel *);
74 u32  nv10_fence_read(struct nouveau_channel *);
75 void nv10_fence_context_del(struct nouveau_channel *);
76 void nv10_fence_destroy(struct nouveau_drm *);
77 int  nv10_fence_create(struct nouveau_drm *);
78 
79 int  nv17_fence_create(struct nouveau_drm *);
80 void nv17_fence_resume(struct nouveau_drm *drm);
81 
82 int nv50_fence_create(struct nouveau_drm *);
83 int nv84_fence_create(struct nouveau_drm *);
84 int nvc0_fence_create(struct nouveau_drm *);
85 
86 struct nv84_fence_chan {
87 	struct nouveau_fence_chan base;
88 	struct nouveau_vma *vma;
89 };
90 
91 struct nv84_fence_priv {
92 	struct nouveau_fence_priv base;
93 	struct nouveau_bo *bo;
94 	u32 *suspend;
95 	struct mutex mutex;
96 };
97 
98 int  nv84_fence_context_new(struct nouveau_channel *);
99 
100 #endif
101