1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NOUVEAU_CHAN_H__
3 #define __NOUVEAU_CHAN_H__
4 #include <nvif/object.h>
5 #include <nvif/notify.h>
6 struct nvif_device;
7 
8 struct nouveau_channel {
9 	struct nvif_device *device;
10 	struct nouveau_drm *drm;
11 	struct nouveau_vmm *vmm;
12 
13 	int chid;
14 	u64 inst;
15 	u32 token;
16 
17 	struct nvif_object vram;
18 	struct nvif_object gart;
19 	struct nvif_object nvsw;
20 
21 	struct {
22 		struct nouveau_bo *buffer;
23 		struct nouveau_vma *vma;
24 		struct nvif_object ctxdma;
25 		u64 addr;
26 	} push;
27 
28 	/* TODO: this will be reworked in the near future */
29 	bool accel_done;
30 	void *fence;
31 	struct {
32 		int max;
33 		int free;
34 		int cur;
35 		int put;
36 		int ib_base;
37 		int ib_max;
38 		int ib_free;
39 		int ib_put;
40 	} dma;
41 	u32 user_get_hi;
42 	u32 user_get;
43 	u32 user_put;
44 
45 	struct nvif_object user;
46 
47 	struct nvif_notify kill;
48 	atomic_t killed;
49 };
50 
51 int nouveau_channels_init(struct nouveau_drm *);
52 
53 int  nouveau_channel_new(struct nouveau_drm *, struct nvif_device *,
54 			 u32 arg0, u32 arg1, bool priv,
55 			 struct nouveau_channel **);
56 void nouveau_channel_del(struct nouveau_channel **);
57 int  nouveau_channel_idle(struct nouveau_channel *);
58 
59 extern int nouveau_vram_pushbuf;
60 
61 #endif
62