1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __NVKM_MMU_H__ 3 #define __NVKM_MMU_H__ 4 #include <core/subdev.h> 5 6 struct nvkm_vma { 7 struct list_head head; 8 struct rb_node tree; 9 u64 addr; 10 u64 size:50; 11 bool mapref:1; /* PTs (de)referenced on (un)map (vs pre-allocated). */ 12 bool sparse:1; /* Unmapped PDEs/PTEs will not trigger MMU faults. */ 13 #define NVKM_VMA_PAGE_NONE 7 14 u8 page:3; /* Requested page type (index, or NONE for automatic). */ 15 u8 refd:3; /* Current page type (index, or NONE for unreferenced). */ 16 bool used:1; /* Region allocated. */ 17 bool part:1; /* Region was split from an allocated region by map(). */ 18 bool user:1; /* Region user-allocated. */ 19 bool busy:1; /* Region busy (for temporarily preventing user access). */ 20 struct nvkm_memory *memory; /* Memory currently mapped into VMA. */ 21 struct nvkm_tags *tags; /* Compression tag reference. */ 22 }; 23 24 struct nvkm_vmm { 25 const struct nvkm_vmm_func *func; 26 struct nvkm_mmu *mmu; 27 const char *name; 28 u32 debug; 29 struct kref kref; 30 struct mutex mutex; 31 32 u64 start; 33 u64 limit; 34 35 struct nvkm_vmm_pt *pd; 36 struct list_head join; 37 38 struct list_head list; 39 struct rb_root free; 40 struct rb_root root; 41 42 bool bootstrapped; 43 atomic_t engref[NVKM_SUBDEV_NR]; 44 45 dma_addr_t null; 46 void *nullp; 47 }; 48 49 int nvkm_vmm_new(struct nvkm_device *, u64 addr, u64 size, void *argv, u32 argc, 50 struct lock_class_key *, const char *name, struct nvkm_vmm **); 51 struct nvkm_vmm *nvkm_vmm_ref(struct nvkm_vmm *); 52 void nvkm_vmm_unref(struct nvkm_vmm **); 53 int nvkm_vmm_boot(struct nvkm_vmm *); 54 int nvkm_vmm_join(struct nvkm_vmm *, struct nvkm_memory *inst); 55 void nvkm_vmm_part(struct nvkm_vmm *, struct nvkm_memory *inst); 56 int nvkm_vmm_get(struct nvkm_vmm *, u8 page, u64 size, struct nvkm_vma **); 57 void nvkm_vmm_put(struct nvkm_vmm *, struct nvkm_vma **); 58 59 struct nvkm_vmm_map { 60 struct nvkm_memory *memory; 61 u64 offset; 62 63 struct nvkm_mm_node *mem; 64 struct scatterlist *sgl; 65 dma_addr_t *dma; 66 u64 off; 67 68 const struct nvkm_vmm_page *page; 69 70 struct nvkm_tags *tags; 71 u64 next; 72 u64 type; 73 u64 ctag; 74 }; 75 76 int nvkm_vmm_map(struct nvkm_vmm *, struct nvkm_vma *, void *argv, u32 argc, 77 struct nvkm_vmm_map *); 78 void nvkm_vmm_unmap(struct nvkm_vmm *, struct nvkm_vma *); 79 80 struct nvkm_memory *nvkm_umem_search(struct nvkm_client *, u64); 81 struct nvkm_vmm *nvkm_uvmm_search(struct nvkm_client *, u64 handle); 82 83 struct nvkm_mmu { 84 const struct nvkm_mmu_func *func; 85 struct nvkm_subdev subdev; 86 87 u8 dma_bits; 88 89 int heap_nr; 90 struct { 91 #define NVKM_MEM_VRAM 0x01 92 #define NVKM_MEM_HOST 0x02 93 #define NVKM_MEM_COMP 0x04 94 #define NVKM_MEM_DISP 0x08 95 u8 type; 96 u64 size; 97 } heap[4]; 98 99 int type_nr; 100 struct { 101 #define NVKM_MEM_KIND 0x10 102 #define NVKM_MEM_MAPPABLE 0x20 103 #define NVKM_MEM_COHERENT 0x40 104 #define NVKM_MEM_UNCACHED 0x80 105 u8 type; 106 u8 heap; 107 } type[16]; 108 109 struct nvkm_vmm *vmm; 110 111 struct { 112 struct mutex mutex; 113 struct list_head list; 114 } ptc, ptp; 115 116 struct nvkm_device_oclass user; 117 }; 118 119 int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 120 int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 121 int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 122 int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 123 int g84_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 124 int mcp77_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 125 int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 126 int gk104_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 127 int gk20a_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 128 int gm200_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 129 int gm20b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 130 int gp100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 131 int gp10b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 132 int gv100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **); 133 #endif 134