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