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