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/notify.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_new(struct nouveau_channel *, bool sysmem,
21		       struct nouveau_fence **);
22void nouveau_fence_unref(struct nouveau_fence **);
23
24int  nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *);
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 nvif_notify notify;
48	int notify_ref, dead;
49};
50
51struct 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
63void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
64void nouveau_fence_context_del(struct nouveau_fence_chan *);
65void nouveau_fence_context_free(struct nouveau_fence_chan *);
66void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
67
68int nv04_fence_create(struct nouveau_drm *);
69int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
70
71int  nv10_fence_emit(struct nouveau_fence *);
72int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
73		     struct nouveau_channel *);
74u32  nv10_fence_read(struct nouveau_channel *);
75void nv10_fence_context_del(struct nouveau_channel *);
76void nv10_fence_destroy(struct nouveau_drm *);
77int  nv10_fence_create(struct nouveau_drm *);
78
79int  nv17_fence_create(struct nouveau_drm *);
80void nv17_fence_resume(struct nouveau_drm *drm);
81
82int nv50_fence_create(struct nouveau_drm *);
83int nv84_fence_create(struct nouveau_drm *);
84int nvc0_fence_create(struct nouveau_drm *);
85
86struct nv84_fence_chan {
87	struct nouveau_fence_chan base;
88	struct nouveau_vma *vma;
89};
90
91struct nv84_fence_priv {
92	struct nouveau_fence_priv base;
93	struct nouveau_bo *bo;
94	u32 *suspend;
95	struct mutex mutex;
96};
97
98int  nv84_fence_context_new(struct nouveau_channel *);
99
100#endif
101