diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/core/memory.h')
-rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/memory.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h new file mode 100644 index 000000000..9363b839a --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h @@ -0,0 +1,53 @@ +#ifndef __NVKM_MEMORY_H__ +#define __NVKM_MEMORY_H__ +#include <core/os.h> +struct nvkm_device; +struct nvkm_vma; +struct nvkm_vm; + +enum nvkm_memory_target { + NVKM_MEM_TARGET_INST, + NVKM_MEM_TARGET_VRAM, + NVKM_MEM_TARGET_HOST, +}; + +struct nvkm_memory { + const struct nvkm_memory_func *func; +}; + +struct nvkm_memory_func { + void *(*dtor)(struct nvkm_memory *); + enum nvkm_memory_target (*target)(struct nvkm_memory *); + u64 (*addr)(struct nvkm_memory *); + u64 (*size)(struct nvkm_memory *); + void (*boot)(struct nvkm_memory *, struct nvkm_vm *); + void __iomem *(*acquire)(struct nvkm_memory *); + void (*release)(struct nvkm_memory *); + u32 (*rd32)(struct nvkm_memory *, u64 offset); + void (*wr32)(struct nvkm_memory *, u64 offset, u32 data); + void (*map)(struct nvkm_memory *, struct nvkm_vma *, u64 offset); +}; + +void nvkm_memory_ctor(const struct nvkm_memory_func *, struct nvkm_memory *); +int nvkm_memory_new(struct nvkm_device *, enum nvkm_memory_target, + u64 size, u32 align, bool zero, struct nvkm_memory **); +void nvkm_memory_del(struct nvkm_memory **); +#define nvkm_memory_target(p) (p)->func->target(p) +#define nvkm_memory_addr(p) (p)->func->addr(p) +#define nvkm_memory_size(p) (p)->func->size(p) +#define nvkm_memory_boot(p,v) (p)->func->boot((p),(v)) +#define nvkm_memory_map(p,v,o) (p)->func->map((p),(v),(o)) + +/* accessor macros - kmap()/done() must bracket use of the other accessor + * macros to guarantee correct behaviour across all chipsets + */ +#define nvkm_kmap(o) (o)->func->acquire(o) +#define nvkm_ro32(o,a) (o)->func->rd32((o), (a)) +#define nvkm_wo32(o,a,d) (o)->func->wr32((o), (a), (d)) +#define nvkm_mo32(o,a,m,d) ({ \ + u32 _addr = (a), _data = nvkm_ro32((o), _addr); \ + nvkm_wo32((o), _addr, (_data & ~(m)) | (d)); \ + _data; \ +}) +#define nvkm_done(o) (o)->func->release(o) +#endif |