xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/nouveau/include/nvkm/core/gpuobj.h (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: gpuobj.h,v 1.4 2021/12/18 23:45:33 riastradh Exp $	*/
2 
3 /* SPDX-License-Identifier: MIT */
4 #ifndef __NVKM_GPUOBJ_H__
5 #define __NVKM_GPUOBJ_H__
6 #include <core/memory.h>
7 #include <core/mm.h>
8 
9 #define NVOBJ_FLAG_ZERO_ALLOC 0x00000001
10 #define NVOBJ_FLAG_HEAP       0x00000004
11 
12 #ifdef __NetBSD__
13 #  define	__nvkm_gpuobj_iomem
14 #  define	__iomem			__nvkm_gpuobj_iomem
15 #endif
16 
17 struct nvkm_gpuobj {
18 	union {
19 		const struct nvkm_gpuobj_func *func;
20 		const struct nvkm_gpuobj_func *ptrs;
21 	};
22 	struct nvkm_gpuobj *parent;
23 	struct nvkm_memory *memory;
24 	struct nvkm_mm_node *node;
25 
26 	u64 addr;
27 	u32 size;
28 	struct nvkm_mm heap;
29 
30 	void __iomem *map;
31 };
32 
33 #ifdef __NetBSD__
34 #  undef	__iomem
35 #endif
36 
37 struct nvkm_gpuobj_func {
38 	void *(*acquire)(struct nvkm_gpuobj *);
39 	void (*release)(struct nvkm_gpuobj *);
40 	u32 (*rd32)(struct nvkm_gpuobj *, u32 offset);
41 	void (*wr32)(struct nvkm_gpuobj *, u32 offset, u32 data);
42 	int (*map)(struct nvkm_gpuobj *, u64 offset, struct nvkm_vmm *,
43 		   struct nvkm_vma *, void *argv, u32 argc);
44 };
45 
46 int nvkm_gpuobj_new(struct nvkm_device *, u32 size, int align, bool zero,
47 		    struct nvkm_gpuobj *parent, struct nvkm_gpuobj **);
48 void nvkm_gpuobj_del(struct nvkm_gpuobj **);
49 int nvkm_gpuobj_wrap(struct nvkm_memory *, struct nvkm_gpuobj **);
50 void nvkm_gpuobj_memcpy_to(struct nvkm_gpuobj *dst, u32 dstoffset, void *src,
51 			   u32 length);
52 void nvkm_gpuobj_memcpy_from(void *dst, struct nvkm_gpuobj *src, u32 srcoffset,
53 			     u32 length);
54 #endif
55