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