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
8struct nouveau_drm;
9struct nouveau_bo;
10
11struct 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
20int  nouveau_fence_create(struct nouveau_fence **, struct nouveau_channel *);
21int  nouveau_fence_new(struct nouveau_fence **, struct nouveau_channel *);
22void nouveau_fence_unref(struct nouveau_fence **);
23
24int  nouveau_fence_emit(struct nouveau_fence *);
25bool nouveau_fence_done(struct nouveau_fence *);
26int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
27int  nouveau_fence_sync(struct nouveau_bo *, struct nouveau_channel *, bool exclusive, bool intr);
28
29struct 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 work_struct uevent_work;
48	struct nvif_event event;
49	int notify_ref, dead, killed;
50};
51
52struct nouveau_fence_priv {
53	void (*dtor)(struct nouveau_drm *);
54	bool (*suspend)(struct nouveau_drm *);
55	void (*resume)(struct nouveau_drm *);
56	int  (*context_new)(struct nouveau_channel *);
57	void (*context_del)(struct nouveau_channel *);
58
59	bool uevent;
60};
61
62#define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
63
64void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
65void nouveau_fence_context_del(struct nouveau_fence_chan *);
66void nouveau_fence_context_free(struct nouveau_fence_chan *);
67void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
68
69int nv04_fence_create(struct nouveau_drm *);
70int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
71
72int  nv10_fence_emit(struct nouveau_fence *);
73int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
74		     struct nouveau_channel *);
75u32  nv10_fence_read(struct nouveau_channel *);
76void nv10_fence_context_del(struct nouveau_channel *);
77void nv10_fence_destroy(struct nouveau_drm *);
78int  nv10_fence_create(struct nouveau_drm *);
79
80int  nv17_fence_create(struct nouveau_drm *);
81void nv17_fence_resume(struct nouveau_drm *drm);
82
83int nv50_fence_create(struct nouveau_drm *);
84int nv84_fence_create(struct nouveau_drm *);
85int nvc0_fence_create(struct nouveau_drm *);
86
87struct nv84_fence_chan {
88	struct nouveau_fence_chan base;
89	struct nouveau_vma *vma;
90};
91
92struct nv84_fence_priv {
93	struct nouveau_fence_priv base;
94	struct nouveau_bo *bo;
95	u32 *suspend;
96	struct mutex mutex;
97};
98
99int  nv84_fence_context_new(struct nouveau_channel *);
100
101#endif
102