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#ifndef __NVKM_MMU_H__
#define __NVKM_MMU_H__
#include <core/subdev.h>
#include <core/mm.h>
struct nvkm_device;
struct nvkm_mem;
struct nvkm_vm_pgt {
struct nvkm_gpuobj *obj[2];
u32 refcount[2];
};
struct nvkm_vm_pgd {
struct list_head head;
struct nvkm_gpuobj *obj;
};
struct nvkm_vma {
struct list_head head;
int refcount;
struct nvkm_vm *vm;
struct nvkm_mm_node *node;
u64 offset;
u32 access;
};
struct nvkm_vm {
struct nvkm_mmu *mmu;
struct nvkm_mm mm;
struct kref refcount;
struct list_head pgd_list;
atomic_t engref[NVDEV_SUBDEV_NR];
struct nvkm_vm_pgt *pgt;
u32 fpde;
u32 lpde;
};
struct nvkm_mmu {
struct nvkm_subdev subdev;
u64 limit;
u8 dma_bits;
u32 pgt_bits;
u8 spg_shift;
u8 lpg_shift;
int (*create)(struct nvkm_mmu *, u64 offset, u64 length,
u64 mm_offset, struct nvkm_vm **);
void (*map_pgt)(struct nvkm_gpuobj *pgd, u32 pde,
struct nvkm_gpuobj *pgt[2]);
void (*map)(struct nvkm_vma *, struct nvkm_gpuobj *,
struct nvkm_mem *, u32 pte, u32 cnt,
u64 phys, u64 delta);
void (*map_sg)(struct nvkm_vma *, struct nvkm_gpuobj *,
struct nvkm_mem *, u32 pte, u32 cnt, dma_addr_t *);
void (*unmap)(struct nvkm_gpuobj *pgt, u32 pte, u32 cnt);
void (*flush)(struct nvkm_vm *);
};
static inline struct nvkm_mmu *
nvkm_mmu(void *obj)
{
return (void *)nvkm_subdev(obj, NVDEV_SUBDEV_MMU);
}
#define nvkm_mmu_create(p,e,o,i,f,d) \
nvkm_subdev_create((p), (e), (o), 0, (i), (f), (d))
#define nvkm_mmu_destroy(p) \
nvkm_subdev_destroy(&(p)->subdev)
#define nvkm_mmu_init(p) \
nvkm_subdev_init(&(p)->subdev)
#define nvkm_mmu_fini(p,s) \
nvkm_subdev_fini(&(p)->subdev, (s))
#define _nvkm_mmu_dtor _nvkm_subdev_dtor
#define _nvkm_mmu_init _nvkm_subdev_init
#define _nvkm_mmu_fini _nvkm_subdev_fini
extern struct nvkm_oclass nv04_mmu_oclass;
extern struct nvkm_oclass nv41_mmu_oclass;
extern struct nvkm_oclass nv44_mmu_oclass;
extern struct nvkm_oclass nv50_mmu_oclass;
extern struct nvkm_oclass gf100_mmu_oclass;
int nv04_vm_create(struct nvkm_mmu *, u64, u64, u64,
struct nvkm_vm **);
void nv04_mmu_dtor(struct nvkm_object *);
int nvkm_vm_create(struct nvkm_mmu *, u64 offset, u64 length, u64 mm_offset,
u32 block, struct nvkm_vm **);
int nvkm_vm_new(struct nvkm_device *, u64 offset, u64 length, u64 mm_offset,
struct nvkm_vm **);
int nvkm_vm_ref(struct nvkm_vm *, struct nvkm_vm **, struct nvkm_gpuobj *pgd);
int nvkm_vm_get(struct nvkm_vm *, u64 size, u32 page_shift, u32 access,
struct nvkm_vma *);
void nvkm_vm_put(struct nvkm_vma *);
void nvkm_vm_map(struct nvkm_vma *, struct nvkm_mem *);
void nvkm_vm_map_at(struct nvkm_vma *, u64 offset, struct nvkm_mem *);
void nvkm_vm_unmap(struct nvkm_vma *);
void nvkm_vm_unmap_at(struct nvkm_vma *, u64 offset, u64 length);
#endif
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