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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | #ifndef __NVKM_MEMORY_H__ |
3 | #define __NVKM_MEMORY_H__ | |
4 | #include <core/os.h> | |
5 | struct nvkm_device; | |
6 | struct nvkm_vma; | |
7 | struct nvkm_vm; | |
8 | ||
9 | enum nvkm_memory_target { | |
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10 | NVKM_MEM_TARGET_INST, /* instance memory */ |
11 | NVKM_MEM_TARGET_VRAM, /* video memory */ | |
12 | NVKM_MEM_TARGET_HOST, /* coherent system memory */ | |
13 | NVKM_MEM_TARGET_NCOH, /* non-coherent system memory */ | |
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14 | }; |
15 | ||
16 | struct nvkm_memory { | |
17 | const struct nvkm_memory_func *func; | |
18 | }; | |
19 | ||
20 | struct nvkm_memory_func { | |
21 | void *(*dtor)(struct nvkm_memory *); | |
22 | enum nvkm_memory_target (*target)(struct nvkm_memory *); | |
23 | u64 (*addr)(struct nvkm_memory *); | |
24 | u64 (*size)(struct nvkm_memory *); | |
25 | void (*boot)(struct nvkm_memory *, struct nvkm_vm *); | |
26 | void __iomem *(*acquire)(struct nvkm_memory *); | |
27 | void (*release)(struct nvkm_memory *); | |
28 | u32 (*rd32)(struct nvkm_memory *, u64 offset); | |
29 | void (*wr32)(struct nvkm_memory *, u64 offset, u32 data); | |
30 | void (*map)(struct nvkm_memory *, struct nvkm_vma *, u64 offset); | |
31 | }; | |
32 | ||
33 | void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *); | |
34 | int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target, | |
35 | u64 size, u32 align, bool zero, struct nvkm_memory **); | |
36 | void nvkm_memory_del(struct nvkm_memory **); | |
37 | #define nvkm_memory_target(p) (p)->func->target(p) | |
38 | #define nvkm_memory_addr(p) (p)->func->addr(p) | |
39 | #define nvkm_memory_size(p) (p)->func->size(p) | |
40 | #define nvkm_memory_boot(p,v) (p)->func->boot((p),(v)) | |
41 | #define nvkm_memory_map(p,v,o) (p)->func->map((p),(v),(o)) | |
42 | ||
43 | /* accessor macros - kmap()/done() must bracket use of the other accessor | |
44 | * macros to guarantee correct behaviour across all chipsets | |
45 | */ | |
46 | #define nvkm_kmap(o) (o)->func->acquire(o) | |
47 | #define nvkm_ro32(o,a) (o)->func->rd32((o), (a)) | |
48 | #define nvkm_wo32(o,a,d) (o)->func->wr32((o), (a), (d)) | |
49 | #define nvkm_mo32(o,a,m,d) ({ \ | |
50 | u32 _addr = (a), _data = nvkm_ro32((o), _addr); \ | |
51 | nvkm_wo32((o), _addr, (_data & ~(m)) | (d)); \ | |
52 | _data; \ | |
53 | }) | |
54 | #define nvkm_done(o) (o)->func->release(o) | |
55 | #endif |