1
2#ifndef __NVKM_MMU_H__
3#define __NVKM_MMU_H__
4#include <core/subdev.h>
5#include <core/mm.h>
6struct nvkm_device;
7struct nvkm_mem;
8
9struct nvkm_vm_pgt {
10 struct nvkm_memory *mem[2];
11 u32 refcount[2];
12};
13
14struct nvkm_vm_pgd {
15 struct list_head head;
16 struct nvkm_gpuobj *obj;
17};
18
19struct nvkm_vma {
20 struct list_head head;
21 int refcount;
22 struct nvkm_vm *vm;
23 struct nvkm_mm_node *node;
24 u64 offset;
25 u32 access;
26};
27
28struct nvkm_vm {
29 struct nvkm_mmu *mmu;
30
31 struct mutex mutex;
32 struct nvkm_mm mm;
33 struct kref refcount;
34
35 struct list_head pgd_list;
36 atomic_t engref[NVKM_SUBDEV_NR];
37
38 struct nvkm_vm_pgt *pgt;
39 u32 fpde;
40 u32 lpde;
41};
42
43int nvkm_vm_new(struct nvkm_device *, u64 offset, u64 length, u64 mm_offset,
44 struct lock_class_key *, struct nvkm_vm **);
45int nvkm_vm_ref(struct nvkm_vm *, struct nvkm_vm **, struct nvkm_gpuobj *pgd);
46int nvkm_vm_boot(struct nvkm_vm *, u64 size);
47int nvkm_vm_get(struct nvkm_vm *, u64 size, u32 page_shift, u32 access,
48 struct nvkm_vma *);
49void nvkm_vm_put(struct nvkm_vma *);
50void nvkm_vm_map(struct nvkm_vma *, struct nvkm_mem *);
51void nvkm_vm_map_at(struct nvkm_vma *, u64 offset, struct nvkm_mem *);
52void nvkm_vm_unmap(struct nvkm_vma *);
53void nvkm_vm_unmap_at(struct nvkm_vma *, u64 offset, u64 length);
54
55struct nvkm_mmu {
56 const struct nvkm_mmu_func *func;
57 struct nvkm_subdev subdev;
58
59 u64 limit;
60 u8 dma_bits;
61 u8 lpg_shift;
62};
63
64int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
65int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
66int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
67int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
68int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
69#endif
70
