1 /* SPDX-License-Identifier: GPL-2.0 */
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 
12 	int chid;
13 
14 	struct nvif_object vram;
15 	struct nvif_object gart;
16 	struct nvif_object nvsw;
17 
18 	struct {
19 		struct nouveau_bo *buffer;
20 		struct nouveau_vma *vma;
21 		struct nvif_object ctxdma;
22 		u64 addr;
23 	} push;
24 
25 	/* TODO: this will be reworked in the near future */
26 	bool accel_done;
27 	void *fence;
28 	struct {
29 		int max;
30 		int free;
31 		int cur;
32 		int put;
33 		int ib_base;
34 		int ib_max;
35 		int ib_free;
36 		int ib_put;
37 	} dma;
38 	u32 user_get_hi;
39 	u32 user_get;
40 	u32 user_put;
41 
42 	struct nvif_object user;
43 
44 	struct nvif_notify kill;
45 	atomic_t killed;
46 };
47 
48 int nouveau_channels_init(struct nouveau_drm *);
49 
50 int  nouveau_channel_new(struct nouveau_drm *, struct nvif_device *,
51 			 u32 arg0, u32 arg1, struct nouveau_channel **);
52 void nouveau_channel_del(struct nouveau_channel **);
53 int  nouveau_channel_idle(struct nouveau_channel *);
54 
55 extern int nouveau_vram_pushbuf;
56 
57 #endif
58