1 #ifndef __NVKM_VMM_H__ 2 #define __NVKM_VMM_H__ 3 #include "priv.h" 4 #include <core/memory.h> 5 enum nvkm_memory_target; 6 7 struct nvkm_vmm_pt { 8 /* Some GPUs have a mapping level with a dual page tables to 9 * support large and small pages in the same address-range. 10 * 11 * We track the state of both page tables in one place, which 12 * is why there's multiple PT pointers/refcounts here. 13 */ 14 struct nvkm_mmu_pt *pt[2]; 15 u32 refs[2]; 16 17 /* Page size handled by this PT. 18 * 19 * Tesla backend needs to know this when writinge PDEs, 20 * otherwise unnecessary. 21 */ 22 u8 page; 23 24 /* Entire page table sparse. 25 * 26 * Used to propagate sparseness to child page tables. 27 */ 28 bool sparse:1; 29 30 /* Tracking for page directories. 31 * 32 * The array is indexed by PDE, and will either point to the 33 * child page table, or indicate the PDE is marked as sparse. 34 **/ 35 #define NVKM_VMM_PDE_INVALID(pde) IS_ERR_OR_NULL(pde) 36 #define NVKM_VMM_PDE_SPARSED(pde) IS_ERR(pde) 37 #define NVKM_VMM_PDE_SPARSE ERR_PTR(-EBUSY) 38 struct nvkm_vmm_pt **pde; 39 40 /* Tracking for dual page tables. 41 * 42 * There's one entry for each LPTE, keeping track of whether 43 * there are valid SPTEs in the same address-range. 44 * 45 * This information is used to manage LPTE state transitions. 46 */ 47 #define NVKM_VMM_PTE_SPARSE 0x80 48 #define NVKM_VMM_PTE_VALID 0x40 49 #define NVKM_VMM_PTE_SPTES 0x3f 50 u8 pte[]; 51 }; 52 53 typedef void (*nvkm_vmm_pxe_func)(struct nvkm_vmm *, 54 struct nvkm_mmu_pt *, u32 ptei, u32 ptes); 55 typedef void (*nvkm_vmm_pde_func)(struct nvkm_vmm *, 56 struct nvkm_vmm_pt *, u32 pdei); 57 typedef void (*nvkm_vmm_pte_func)(struct nvkm_vmm *, struct nvkm_mmu_pt *, 58 u32 ptei, u32 ptes, struct nvkm_vmm_map *); 59 60 struct nvkm_vmm_desc_func { 61 nvkm_vmm_pxe_func invalid; 62 nvkm_vmm_pxe_func unmap; 63 nvkm_vmm_pxe_func sparse; 64 65 nvkm_vmm_pde_func pde; 66 67 nvkm_vmm_pte_func mem; 68 nvkm_vmm_pte_func dma; 69 nvkm_vmm_pte_func sgl; 70 71 nvkm_vmm_pte_func pfn; 72 bool (*pfn_clear)(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32 ptei, u32 ptes); 73 nvkm_vmm_pxe_func pfn_unmap; 74 }; 75 76 extern const struct nvkm_vmm_desc_func gf100_vmm_pgd; 77 void gf100_vmm_pgd_pde(struct nvkm_vmm *, struct nvkm_vmm_pt *, u32); 78 extern const struct nvkm_vmm_desc_func gf100_vmm_pgt; 79 void gf100_vmm_pgt_unmap(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); 80 void gf100_vmm_pgt_mem(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, 81 struct nvkm_vmm_map *); 82 void gf100_vmm_pgt_dma(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, 83 struct nvkm_vmm_map *); 84 void gf100_vmm_pgt_sgl(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32, 85 struct nvkm_vmm_map *); 86 87 void gk104_vmm_lpt_invalid(struct nvkm_vmm *, struct nvkm_mmu_pt *, u32, u32); 88 89 struct nvkm_vmm_desc { 90 enum { 91 PGD, 92 PGT, 93 SPT, 94 LPT, 95 } type; 96 u8 bits; /* VMA bits covered by PT. */ 97 u8 size; /* Bytes-per-PTE. */ 98 u32 align; /* PT address alignment. */ 99 const struct nvkm_vmm_desc_func *func; 100 }; 101 102 extern const struct nvkm_vmm_desc nv50_vmm_desc_12[]; 103 extern const struct nvkm_vmm_desc nv50_vmm_desc_16[]; 104 105 extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[]; 106 extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[]; 107 extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[]; 108 extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[]; 109 110 extern const struct nvkm_vmm_desc gm200_vmm_desc_16_12[]; 111 extern const struct nvkm_vmm_desc gm200_vmm_desc_16_16[]; 112 extern const struct nvkm_vmm_desc gm200_vmm_desc_17_12[]; 113 extern const struct nvkm_vmm_desc gm200_vmm_desc_17_17[]; 114 115 extern const struct nvkm_vmm_desc gp100_vmm_desc_12[]; 116 extern const struct nvkm_vmm_desc gp100_vmm_desc_16[]; 117 118 struct nvkm_vmm_page { 119 u8 shift; 120 const struct nvkm_vmm_desc *desc; 121 #define NVKM_VMM_PAGE_SPARSE 0x01 122 #define NVKM_VMM_PAGE_VRAM 0x02 123 #define NVKM_VMM_PAGE_HOST 0x04 124 #define NVKM_VMM_PAGE_COMP 0x08 125 #define NVKM_VMM_PAGE_Sxxx (NVKM_VMM_PAGE_SPARSE) 126 #define NVKM_VMM_PAGE_xVxx (NVKM_VMM_PAGE_VRAM) 127 #define NVKM_VMM_PAGE_SVxx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_VRAM) 128 #define NVKM_VMM_PAGE_xxHx (NVKM_VMM_PAGE_HOST) 129 #define NVKM_VMM_PAGE_SxHx (NVKM_VMM_PAGE_Sxxx | NVKM_VMM_PAGE_HOST) 130 #define NVKM_VMM_PAGE_xVHx (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_HOST) 131 #define NVKM_VMM_PAGE_SVHx (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_HOST) 132 #define NVKM_VMM_PAGE_xVxC (NVKM_VMM_PAGE_xVxx | NVKM_VMM_PAGE_COMP) 133 #define NVKM_VMM_PAGE_SVxC (NVKM_VMM_PAGE_SVxx | NVKM_VMM_PAGE_COMP) 134 #define NVKM_VMM_PAGE_xxHC (NVKM_VMM_PAGE_xxHx | NVKM_VMM_PAGE_COMP) 135 #define NVKM_VMM_PAGE_SxHC (NVKM_VMM_PAGE_SxHx | NVKM_VMM_PAGE_COMP) 136 u8 type; 137 }; 138 139 struct nvkm_vmm_func { 140 int (*join)(struct nvkm_vmm *, struct nvkm_memory *inst); 141 void (*part)(struct nvkm_vmm *, struct nvkm_memory *inst); 142 143 int (*aper)(enum nvkm_memory_target); 144 int (*valid)(struct nvkm_vmm *, void *argv, u32 argc, 145 struct nvkm_vmm_map *); 146 void (*flush)(struct nvkm_vmm *, int depth); 147 148 int (*mthd)(struct nvkm_vmm *, struct nvkm_client *, 149 u32 mthd, void *argv, u32 argc); 150 151 void (*invalidate_pdb)(struct nvkm_vmm *, u64 addr); 152 153 u64 page_block; 154 const struct nvkm_vmm_page page[]; 155 }; 156 157 struct nvkm_vmm_join { 158 struct nvkm_memory *inst; 159 struct list_head head; 160 }; 161 162 int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, 163 u32 pd_header, bool managed, u64 addr, u64 size, 164 struct lock_class_key *, const char *name, 165 struct nvkm_vmm **); 166 struct nvkm_vma *nvkm_vma_new(u64 addr, u64 size); 167 struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr); 168 struct nvkm_vma *nvkm_vmm_node_split(struct nvkm_vmm *, struct nvkm_vma *, 169 u64 addr, u64 size); 170 int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref, 171 bool sparse, u8 page, u8 align, u64 size, 172 struct nvkm_vma **pvma); 173 void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *); 174 void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *, bool pfn); 175 void nvkm_vmm_unmap_region(struct nvkm_vmm *, struct nvkm_vma *); 176 177 int nvkm_vmm_raw_get(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd); 178 void nvkm_vmm_raw_put(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd); 179 void nvkm_vmm_raw_unmap(struct nvkm_vmm *vmm, u64 addr, u64 size, 180 bool sparse, u8 refd); 181 int nvkm_vmm_raw_sparse(struct nvkm_vmm *, u64 addr, u64 size, bool ref); 182 183 static inline bool 184 nvkm_vmm_in_managed_range(struct nvkm_vmm *vmm, u64 start, u64 size) 185 { 186 u64 p_start = vmm->managed.p.addr; 187 u64 p_end = p_start + vmm->managed.p.size; 188 u64 n_start = vmm->managed.n.addr; 189 u64 n_end = n_start + vmm->managed.n.size; 190 u64 end = start + size; 191 192 if (start >= p_start && end <= p_end) 193 return true; 194 195 if (start >= n_start && end <= n_end) 196 return true; 197 198 return false; 199 } 200 201 #define NVKM_VMM_PFN_ADDR 0xfffffffffffff000ULL 202 #define NVKM_VMM_PFN_ADDR_SHIFT 12 203 #define NVKM_VMM_PFN_APER 0x00000000000000f0ULL 204 #define NVKM_VMM_PFN_HOST 0x0000000000000000ULL 205 #define NVKM_VMM_PFN_VRAM 0x0000000000000010ULL 206 #define NVKM_VMM_PFN_A 0x0000000000000004ULL 207 #define NVKM_VMM_PFN_W 0x0000000000000002ULL 208 #define NVKM_VMM_PFN_V 0x0000000000000001ULL 209 #define NVKM_VMM_PFN_NONE 0x0000000000000000ULL 210 211 int nvkm_vmm_pfn_map(struct nvkm_vmm *, u8 page, u64 addr, u64 size, u64 *pfn); 212 int nvkm_vmm_pfn_unmap(struct nvkm_vmm *, u64 addr, u64 size); 213 214 struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail); 215 216 int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32, 217 bool, u64, u64, void *, u32, struct lock_class_key *, 218 const char *, struct nvkm_vmm **); 219 int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); 220 221 int nv50_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); 222 void nv50_vmm_part(struct nvkm_vmm *, struct nvkm_memory *); 223 int nv50_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); 224 void nv50_vmm_flush(struct nvkm_vmm *, int); 225 226 int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, 227 struct nvkm_mmu *, bool, u64, u64, void *, u32, 228 struct lock_class_key *, const char *, struct nvkm_vmm **); 229 int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); 230 int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); 231 void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *); 232 int gf100_vmm_aper(enum nvkm_memory_target); 233 int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); 234 void gf100_vmm_flush(struct nvkm_vmm *, int); 235 void gf100_vmm_invalidate(struct nvkm_vmm *, u32 type); 236 void gf100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr); 237 238 int gk20a_vmm_aper(enum nvkm_memory_target); 239 240 int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *, 241 struct nvkm_mmu *, bool, u64, u64, void *, u32, 242 struct lock_class_key *, const char *, struct nvkm_vmm **); 243 int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base); 244 int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); 245 246 int gp100_vmm_new_(const struct nvkm_vmm_func *, 247 struct nvkm_mmu *, bool, u64, u64, void *, u32, 248 struct lock_class_key *, const char *, struct nvkm_vmm **); 249 int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); 250 int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); 251 void gp100_vmm_flush(struct nvkm_vmm *, int); 252 int gp100_vmm_mthd(struct nvkm_vmm *, struct nvkm_client *, u32, void *, u32); 253 void gp100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr); 254 255 int gv100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); 256 257 int nv04_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 258 struct lock_class_key *, const char *, struct nvkm_vmm **); 259 int nv41_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 260 struct lock_class_key *, const char *, struct nvkm_vmm **); 261 int nv44_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 262 struct lock_class_key *, const char *, struct nvkm_vmm **); 263 int nv50_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 264 struct lock_class_key *, const char *, struct nvkm_vmm **); 265 int mcp77_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 266 struct lock_class_key *, const char *, struct nvkm_vmm **); 267 int g84_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 268 struct lock_class_key *, const char *, struct nvkm_vmm **); 269 int gf100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 270 struct lock_class_key *, const char *, struct nvkm_vmm **); 271 int gk104_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 272 struct lock_class_key *, const char *, struct nvkm_vmm **); 273 int gk20a_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 274 struct lock_class_key *, const char *, struct nvkm_vmm **); 275 int gm200_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32, 276 struct lock_class_key *, const char *, 277 struct nvkm_vmm **); 278 int gm200_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 279 struct lock_class_key *, const char *, 280 struct nvkm_vmm **); 281 int gm20b_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32, 282 struct lock_class_key *, const char *, 283 struct nvkm_vmm **); 284 int gm20b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 285 struct lock_class_key *, const char *, 286 struct nvkm_vmm **); 287 int gp100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 288 struct lock_class_key *, const char *, 289 struct nvkm_vmm **); 290 int gp10b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 291 struct lock_class_key *, const char *, 292 struct nvkm_vmm **); 293 int gv100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 294 struct lock_class_key *, const char *, 295 struct nvkm_vmm **); 296 int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32, 297 struct lock_class_key *, const char *, 298 struct nvkm_vmm **); 299 300 #define VMM_PRINT(l,v,p,f,a...) do { \ 301 struct nvkm_vmm *_vmm = (v); \ 302 if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) { \ 303 nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n", \ 304 _vmm->name, ##a); \ 305 } \ 306 } while(0) 307 #define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a) 308 #define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a) 309 #define VMM_SPAM(v,f,a...) VMM_PRINT(NV_DBG_SPAM , (v), dbg, f, ##a) 310 311 #define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do { \ 312 nvkm_kmap((PT)->memory); \ 313 while (PTEN) { \ 314 u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift; \ 315 u64 _addr = ((BASE) + MAP->off); \ 316 \ 317 if (_ptes > PTEN) { \ 318 MAP->off += PTEN << MAP->page->shift; \ 319 _ptes = PTEN; \ 320 } else { \ 321 MAP->off = 0; \ 322 NEXT; \ 323 } \ 324 \ 325 VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes); \ 326 \ 327 FILL(VMM, PT, PTEI, _ptes, MAP, _addr); \ 328 PTEI += _ptes; \ 329 PTEN -= _ptes; \ 330 } \ 331 nvkm_done((PT)->memory); \ 332 } while(0) 333 334 #define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL) \ 335 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ 336 ((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT), \ 337 ((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT), \ 338 (MAP->mem = MAP->mem->next)) 339 #define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL) \ 340 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ 341 *MAP->dma, PAGE_SIZE, MAP->dma++) 342 #define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL) \ 343 VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL, \ 344 sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl), \ 345 (MAP->sgl = sg_next(MAP->sgl))) 346 347 #define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c)) 348 #define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d)) 349 #define VMM_XO(m,v,o,d,c,b,fn,f,a...) do { \ 350 const u32 _pteo = (o); u##b _data = (d); \ 351 VMM_SPAM((v), " %010llx "f, (m)->addr + _pteo, _data, ##a); \ 352 VMM_##fn((m), (m)->base + _pteo, _data, (c), b); \ 353 } while(0) 354 355 #define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 32, WO, "%08x") 356 #define VMM_FO032(m,v,o,d,c) \ 357 VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c)) 358 359 #define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d), 1, 64, WO, "%016llx") 360 #define VMM_FO064(m,v,o,d,c) \ 361 VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c)) 362 363 #define VMM_XO128(m,v,o,lo,hi,c,f,a...) do { \ 364 u32 _pteo = (o), _ptes = (c); \ 365 const u64 _addr = (m)->addr + _pteo; \ 366 VMM_SPAM((v), " %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a); \ 367 while (_ptes--) { \ 368 nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo)); \ 369 nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi)); \ 370 _pteo += 0x10; \ 371 } \ 372 } while(0) 373 374 #define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "") 375 #define VMM_FO128(m,v,o,lo,hi,c) do { \ 376 nvkm_kmap((m)->memory); \ 377 VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c)); \ 378 nvkm_done((m)->memory); \ 379 } while(0) 380 #endif 381