drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h

   1 #ifndef __NVKM_MMU_H__
   2 #define __NVKM_MMU_H__
   3 #include <core/subdev.h>
   4 #include <core/memory.h>
   5 #include <core/mm.h>
   6 struct nvkm_gpuobj;
   7 struct nvkm_mem;
   8
   9 struct nvkm_vm_pgt {
  10         struct nvkm_memory *mem[2];
  11         u32 refcount[2];
  12 };
  13
  14 struct nvkm_vma {
  15         struct nvkm_memory *memory;
  16         struct nvkm_tags *tags;
  17         struct nvkm_vm *vm;
  18         struct nvkm_mm_node *node;
  19         union {
  20                 u64 offset;
  21                 u64 addr;
  22         };
  23         u32 access;
  24 };
  25
  26 struct nvkm_vm {
  27         const struct nvkm_vmm_func *func;
  28         struct nvkm_mmu *mmu;
  29         const char *name;
  30         u32 debug;
  31         struct kref kref;
  32         struct mutex mutex;
  33
  34         u64 start;
  35         u64 limit;
  36
  37         struct nvkm_vmm_pt *pd;
  38         struct list_head join;
  39
  40         struct nvkm_mm mm;
  41         struct kref refcount;
  42
  43         bool bootstrapped;
  44         atomic_t engref[NVKM_SUBDEV_NR];
  45
  46         dma_addr_t null;
  47         void *nullp;
  48 };
  49
  50 int  nvkm_vm_new(struct nvkm_device *, u64 offset, u64 length, u64 mm_offset,
  51                  struct lock_class_key *, struct nvkm_vm **);
  52 int  nvkm_vm_ref(struct nvkm_vm *, struct nvkm_vm **, struct nvkm_memory *inst);
  53 int  nvkm_vm_boot(struct nvkm_vm *, u64 size);
  54 int  nvkm_vm_get(struct nvkm_vm *, u64 size, u32 page_shift, u32 access,
  55                  struct nvkm_vma *);
  56 void nvkm_vm_put(struct nvkm_vma *);
  57 void nvkm_vm_map(struct nvkm_vma *, struct nvkm_mem *);
  58 void nvkm_vm_map_at(struct nvkm_vma *, u64 offset, struct nvkm_mem *);
  59 void nvkm_vm_unmap(struct nvkm_vma *);
  60 void nvkm_vm_unmap_at(struct nvkm_vma *, u64 offset, u64 length);
  61
  62 int nvkm_vmm_boot(struct nvkm_vmm *);
  63
  64 struct nvkm_vmm_map {
  65         struct nvkm_memory *memory;
  66         u64 offset;
  67
  68         struct nvkm_mm_node *mem;
  69         struct scatterlist *sgl;
  70         dma_addr_t *dma;
  71         u64 off;
  72
  73         const struct nvkm_vmm_page *page;
  74
  75         struct nvkm_tags *tags;
  76         u64 next;
  77         u64 type;
  78         u64 ctag;
  79 };
  80
  81 struct nvkm_mmu {
  82         const struct nvkm_mmu_func *func;
  83         struct nvkm_subdev subdev;
  84
  85         u64 limit;
  86         u8  dma_bits;
  87         u8  lpg_shift;
  88
  89         struct nvkm_vmm *vmm;
  90
  91         struct {
  92                 struct mutex mutex;
  93                 struct list_head list;
  94         } ptc, ptp;
  95 };
  96
  97 int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
  98 int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
  99 int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 100 int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 101 int g84_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 102 int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 103 int gk104_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 104 int gk20a_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 105 int gm200_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 106 int gm20b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 107 int gp100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 108 int gp10b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 109 #endif