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/* SPDX-License-Identifier: GPL-2.0 */
#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, /* instance memory */
NVKM_MEM_TARGET_VRAM, /* video memory */
NVKM_MEM_TARGET_HOST, /* coherent system memory */
NVKM_MEM_TARGET_NCOH, /* non-coherent system memory */
};
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
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