1 #ifndef __NVKM_MEMORY_H__
2 #define __NVKM_MEMORY_H__
3 #include <core/os.h>
4 struct nvkm_device;
5 struct nvkm_vma;
6 struct nvkm_vm;
7 
8 enum nvkm_memory_target {
9 	NVKM_MEM_TARGET_INST, /* instance memory */
10 	NVKM_MEM_TARGET_VRAM, /* video memory */
11 	NVKM_MEM_TARGET_HOST, /* coherent system memory */
12 	NVKM_MEM_TARGET_NCOH, /* non-coherent system memory */
13 };
14 
15 struct nvkm_memory {
16 	const struct nvkm_memory_func *func;
17 };
18 
19 struct nvkm_memory_func {
20 	void *(*dtor)(struct nvkm_memory *);
21 	enum nvkm_memory_target (*target)(struct nvkm_memory *);
22 	u64 (*addr)(struct nvkm_memory *);
23 	u64 (*size)(struct nvkm_memory *);
24 	void (*boot)(struct nvkm_memory *, struct nvkm_vm *);
25 	void __iomem *(*acquire)(struct nvkm_memory *);
26 	void (*release)(struct nvkm_memory *);
27 	u32 (*rd32)(struct nvkm_memory *, u64 offset);
28 	void (*wr32)(struct nvkm_memory *, u64 offset, u32 data);
29 	void (*map)(struct nvkm_memory *, struct nvkm_vma *, u64 offset);
30 };
31 
32 void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *);
33 int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target,
34 		    u64 size, u32 align, bool zero, struct nvkm_memory **);
35 void nvkm_memory_del(struct nvkm_memory **);
36 #define nvkm_memory_target(p) (p)->func->target(p)
37 #define nvkm_memory_addr(p) (p)->func->addr(p)
38 #define nvkm_memory_size(p) (p)->func->size(p)
39 #define nvkm_memory_boot(p,v) (p)->func->boot((p),(v))
40 #define nvkm_memory_map(p,v,o) (p)->func->map((p),(v),(o))
41 
42 /* accessor macros - kmap()/done() must bracket use of the other accessor
43  * macros to guarantee correct behaviour across all chipsets
44  */
45 #define nvkm_kmap(o)     (o)->func->acquire(o)
46 #define nvkm_ro32(o,a)   (o)->func->rd32((o), (a))
47 #define nvkm_wo32(o,a,d) (o)->func->wr32((o), (a), (d))
48 #define nvkm_mo32(o,a,m,d) ({                                                  \
49 	u32 _addr = (a), _data = nvkm_ro32((o), _addr);                        \
50 	nvkm_wo32((o), _addr, (_data & ~(m)) | (d));                           \
51 	_data;                                                                 \
52 })
53 #define nvkm_done(o)     (o)->func->release(o)
54 #endif
55