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      1 /*	$NetBSD: nouveau_fence.h,v 1.7 2021/12/18 23:45:32 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NOUVEAU_FENCE_H__
      5 #define __NOUVEAU_FENCE_H__
      6 
      7 #include <linux/dma-fence.h>
      8 #include <nvif/notify.h>
      9 
     10 struct nouveau_drm;
     11 struct nouveau_bo;
     12 
     13 struct nouveau_fence {
     14 	struct dma_fence base;
     15 
     16 	struct list_head head;
     17 
     18 	struct nouveau_channel __rcu *channel;
     19 	unsigned long timeout;
     20 };
     21 
     22 int  nouveau_fence_new(struct nouveau_channel *, bool sysmem,
     23 		       struct nouveau_fence **);
     24 void nouveau_fence_unref(struct nouveau_fence **);
     25 
     26 int  nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *);
     27 bool nouveau_fence_done(struct nouveau_fence *);
     28 int  nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr);
     29 int  nouveau_fence_sync(struct nouveau_bo *, struct nouveau_channel *, bool exclusive, bool intr);
     30 
     31 struct nouveau_fence_chan {
     32 	spinlock_t lock;
     33 	struct kref fence_ref;
     34 
     35 	struct list_head pending;
     36 	struct list_head flip;
     37 
     38 	int  (*emit)(struct nouveau_fence *);
     39 	int  (*sync)(struct nouveau_fence *, struct nouveau_channel *,
     40 		     struct nouveau_channel *);
     41 	u32  (*read)(struct nouveau_channel *);
     42 	int  (*emit32)(struct nouveau_channel *, u64, u32);
     43 	int  (*sync32)(struct nouveau_channel *, u64, u32);
     44 
     45 	u32 sequence;
     46 	u32 context;
     47 	char name[32];
     48 
     49 	struct nvif_notify notify;
     50 	int notify_ref, dead;
     51 };
     52 
     53 struct nouveau_fence_priv {
     54 	void (*dtor)(struct nouveau_drm *);
     55 	bool (*suspend)(struct nouveau_drm *);
     56 	void (*resume)(struct nouveau_drm *);
     57 	int  (*context_new)(struct nouveau_channel *);
     58 	void (*context_del)(struct nouveau_channel *);
     59 
     60 	bool uevent;
     61 };
     62 
     63 #define nouveau_fence(drm) ((struct nouveau_fence_priv *)(drm)->fence)
     64 
     65 void nouveau_fence_context_new(struct nouveau_channel *, struct nouveau_fence_chan *);
     66 void nouveau_fence_context_del(struct nouveau_fence_chan *);
     67 void nouveau_fence_context_free(struct nouveau_fence_chan *);
     68 void nouveau_fence_context_kill(struct nouveau_fence_chan *, int error);
     69 
     70 int nv04_fence_create(struct nouveau_drm *);
     71 int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32);
     72 
     73 int  nv10_fence_emit(struct nouveau_fence *);
     74 int  nv17_fence_sync(struct nouveau_fence *, struct nouveau_channel *,
     75 		     struct nouveau_channel *);
     76 u32  nv10_fence_read(struct nouveau_channel *);
     77 void nv10_fence_context_del(struct nouveau_channel *);
     78 void nv10_fence_destroy(struct nouveau_drm *);
     79 int  nv10_fence_create(struct nouveau_drm *);
     80 
     81 int  nv17_fence_create(struct nouveau_drm *);
     82 void nv17_fence_resume(struct nouveau_drm *drm);
     83 
     84 int nv50_fence_create(struct nouveau_drm *);
     85 int nv84_fence_create(struct nouveau_drm *);
     86 int nvc0_fence_create(struct nouveau_drm *);
     87 
     88 struct nv84_fence_chan {
     89 	struct nouveau_fence_chan base;
     90 	struct nouveau_vma *vma;
     91 };
     92 
     93 struct nv84_fence_priv {
     94 	struct nouveau_fence_priv base;
     95 	struct nouveau_bo *bo;
     96 	u32 *suspend;
     97 	struct mutex mutex;
     98 };
     99 
    100 int  nv84_fence_context_new(struct nouveau_channel *);
    101 
    102 #endif
    103