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

   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 int nvkm_vmm_ctor(const struct nvkm_vmm_func *, struct nvkm_mmu *,
 167                   u32 pd_header, bool managed, u64 addr, u64 size,
 168                   struct lock_class_key *, const char *name, struct nvkm_vmm *);
 169 struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr);
 170 struct nvkm_vma *nvkm_vmm_node_split(struct nvkm_vmm *, struct nvkm_vma *,
 171                                      u64 addr, u64 size);
 172 int nvkm_vmm_get_locked(struct nvkm_vmm *, bool getref, bool mapref,
 173                         bool sparse, u8 page, u8 align, u64 size,
 174                         struct nvkm_vma **pvma);
 175 void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *);
 176 void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *, bool pfn);
 177 void nvkm_vmm_unmap_region(struct nvkm_vmm *, struct nvkm_vma *);
 178
 179 #define NVKM_VMM_PFN_ADDR                                 0xfffffffffffff000ULL
 180 #define NVKM_VMM_PFN_ADDR_SHIFT                                              12
 181 #define NVKM_VMM_PFN_APER                                 0x00000000000000f0ULL
 182 #define NVKM_VMM_PFN_HOST                                 0x0000000000000000ULL
 183 #define NVKM_VMM_PFN_VRAM                                 0x0000000000000010ULL
 184 #define NVKM_VMM_PFN_W                                    0x0000000000000002ULL
 185 #define NVKM_VMM_PFN_V                                    0x0000000000000001ULL
 186 #define NVKM_VMM_PFN_NONE                                 0x0000000000000000ULL
 187
 188 int nvkm_vmm_pfn_map(struct nvkm_vmm *, u8 page, u64 addr, u64 size, u64 *pfn);
 189 int nvkm_vmm_pfn_unmap(struct nvkm_vmm *, u64 addr, u64 size);
 190
 191 struct nvkm_vma *nvkm_vma_tail(struct nvkm_vma *, u64 tail);
 192
 193 int nv04_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32,
 194                   bool, u64, u64, void *, u32, struct lock_class_key *,
 195                   const char *, struct nvkm_vmm **);
 196 int nv04_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 197
 198 int nv50_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 199 void nv50_vmm_part(struct nvkm_vmm *, struct nvkm_memory *);
 200 int nv50_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 201 void nv50_vmm_flush(struct nvkm_vmm *, int);
 202
 203 int gf100_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
 204                    struct nvkm_mmu *, bool, u64, u64, void *, u32,
 205                    struct lock_class_key *, const char *, struct nvkm_vmm **);
 206 int gf100_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
 207 int gf100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 208 void gf100_vmm_part(struct nvkm_vmm *, struct nvkm_memory *);
 209 int gf100_vmm_aper(enum nvkm_memory_target);
 210 int gf100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 211 void gf100_vmm_flush(struct nvkm_vmm *, int);
 212 void gf100_vmm_invalidate(struct nvkm_vmm *, u32 type);
 213 void gf100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
 214
 215 int gk20a_vmm_aper(enum nvkm_memory_target);
 216
 217 int gm200_vmm_new_(const struct nvkm_vmm_func *, const struct nvkm_vmm_func *,
 218                    struct nvkm_mmu *, bool, u64, u64, void *, u32,
 219                    struct lock_class_key *, const char *, struct nvkm_vmm **);
 220 int gm200_vmm_join_(struct nvkm_vmm *, struct nvkm_memory *, u64 base);
 221 int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 222
 223 int gp100_vmm_new_(const struct nvkm_vmm_func *,
 224                    struct nvkm_mmu *, bool, u64, u64, void *, u32,
 225                    struct lock_class_key *, const char *, struct nvkm_vmm **);
 226 int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 227 int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *);
 228 void gp100_vmm_flush(struct nvkm_vmm *, int);
 229 int gp100_vmm_mthd(struct nvkm_vmm *, struct nvkm_client *, u32, void *, u32);
 230 void gp100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr);
 231
 232 int gv100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *);
 233
 234 int nv04_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 235                  struct lock_class_key *, const char *, struct nvkm_vmm **);
 236 int nv41_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 237                  struct lock_class_key *, const char *, struct nvkm_vmm **);
 238 int nv44_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 239                  struct lock_class_key *, const char *, struct nvkm_vmm **);
 240 int nv50_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 241                  struct lock_class_key *, const char *, struct nvkm_vmm **);
 242 int mcp77_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 243                   struct lock_class_key *, const char *, struct nvkm_vmm **);
 244 int g84_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 245                 struct lock_class_key *, const char *, struct nvkm_vmm **);
 246 int gf100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 247                   struct lock_class_key *, const char *, struct nvkm_vmm **);
 248 int gk104_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 249                   struct lock_class_key *, const char *, struct nvkm_vmm **);
 250 int gk20a_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 251                   struct lock_class_key *, const char *, struct nvkm_vmm **);
 252 int gm200_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 253                         struct lock_class_key *, const char *,
 254                         struct nvkm_vmm **);
 255 int gm200_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 256                   struct lock_class_key *, const char *,
 257                   struct nvkm_vmm **);
 258 int gm20b_vmm_new_fixed(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 259                         struct lock_class_key *, const char *,
 260                         struct nvkm_vmm **);
 261 int gm20b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 262                   struct lock_class_key *, const char *,
 263                   struct nvkm_vmm **);
 264 int gp100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 265                   struct lock_class_key *, const char *,
 266                   struct nvkm_vmm **);
 267 int gp10b_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 268                   struct lock_class_key *, const char *,
 269                   struct nvkm_vmm **);
 270 int gv100_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 271                   struct lock_class_key *, const char *,
 272                   struct nvkm_vmm **);
 273 int tu102_vmm_new(struct nvkm_mmu *, bool, u64, u64, void *, u32,
 274                   struct lock_class_key *, const char *,
 275                   struct nvkm_vmm **);
 276
 277 #define VMM_PRINT(l,v,p,f,a...) do {                                           \
 278         struct nvkm_vmm *_vmm = (v);                                           \
 279         if (CONFIG_NOUVEAU_DEBUG >= (l) && _vmm->debug >= (l)) {               \
 280                 nvkm_printk_(&_vmm->mmu->subdev, 0, p, "%s: "f"\n",            \
 281                              _vmm->name, ##a);                                 \
 282         }                                                                      \
 283 } while(0)
 284 #define VMM_DEBUG(v,f,a...) VMM_PRINT(NV_DBG_DEBUG, (v), info, f, ##a)
 285 #define VMM_TRACE(v,f,a...) VMM_PRINT(NV_DBG_TRACE, (v), info, f, ##a)
 286 #define VMM_SPAM(v,f,a...)  VMM_PRINT(NV_DBG_SPAM , (v),  dbg, f, ##a)
 287
 288 #define VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,BASE,SIZE,NEXT) do {            \
 289         nvkm_kmap((PT)->memory);                                               \
 290         while (PTEN) {                                                         \
 291                 u64 _ptes = ((SIZE) - MAP->off) >> MAP->page->shift;           \
 292                 u64 _addr = ((BASE) + MAP->off);                               \
 293                                                                                \
 294                 if (_ptes > PTEN) {                                            \
 295                         MAP->off += PTEN << MAP->page->shift;                  \
 296                         _ptes = PTEN;                                          \
 297                 } else {                                                       \
 298                         MAP->off = 0;                                          \
 299                         NEXT;                                                  \
 300                 }                                                              \
 301                                                                                \
 302                 VMM_SPAM(VMM, "ITER %08x %08x PTE(s)", PTEI, (u32)_ptes);      \
 303                                                                                \
 304                 FILL(VMM, PT, PTEI, _ptes, MAP, _addr);                        \
 305                 PTEI += _ptes;                                                 \
 306                 PTEN -= _ptes;                                                 \
 307         };                                                                     \
 308         nvkm_done((PT)->memory);                                               \
 309 } while(0)
 310
 311 #define VMM_MAP_ITER_MEM(VMM,PT,PTEI,PTEN,MAP,FILL)                            \
 312         VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,                                \
 313                      ((u64)MAP->mem->offset << NVKM_RAM_MM_SHIFT),             \
 314                      ((u64)MAP->mem->length << NVKM_RAM_MM_SHIFT),             \
 315                      (MAP->mem = MAP->mem->next))
 316 #define VMM_MAP_ITER_DMA(VMM,PT,PTEI,PTEN,MAP,FILL)                            \
 317         VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,                                \
 318                      *MAP->dma, PAGE_SIZE, MAP->dma++)
 319 #define VMM_MAP_ITER_SGL(VMM,PT,PTEI,PTEN,MAP,FILL)                            \
 320         VMM_MAP_ITER(VMM,PT,PTEI,PTEN,MAP,FILL,                                \
 321                      sg_dma_address(MAP->sgl), sg_dma_len(MAP->sgl),           \
 322                      (MAP->sgl = sg_next(MAP->sgl)))
 323
 324 #define VMM_FO(m,o,d,c,b) nvkm_fo##b((m)->memory, (o), (d), (c))
 325 #define VMM_WO(m,o,d,c,b) nvkm_wo##b((m)->memory, (o), (d))
 326 #define VMM_XO(m,v,o,d,c,b,fn,f,a...) do {                                     \
 327         const u32 _pteo = (o); u##b _data = (d);                               \
 328         VMM_SPAM((v), "   %010llx "f, (m)->addr + _pteo, _data, ##a);          \
 329         VMM_##fn((m), (m)->base + _pteo, _data, (c), b);                       \
 330 } while(0)
 331
 332 #define VMM_WO032(m,v,o,d) VMM_XO((m),(v),(o),(d),  1, 32, WO, "%08x")
 333 #define VMM_FO032(m,v,o,d,c)                                                   \
 334         VMM_XO((m),(v),(o),(d),(c), 32, FO, "%08x %08x", (c))
 335
 336 #define VMM_WO064(m,v,o,d) VMM_XO((m),(v),(o),(d),  1, 64, WO, "%016llx")
 337 #define VMM_FO064(m,v,o,d,c)                                                   \
 338         VMM_XO((m),(v),(o),(d),(c), 64, FO, "%016llx %08x", (c))
 339
 340 #define VMM_XO128(m,v,o,lo,hi,c,f,a...) do {                                   \
 341         u32 _pteo = (o), _ptes = (c);                                          \
 342         const u64 _addr = (m)->addr + _pteo;                                   \
 343         VMM_SPAM((v), "   %010llx %016llx%016llx"f, _addr, (hi), (lo), ##a);   \
 344         while (_ptes--) {                                                      \
 345                 nvkm_wo64((m)->memory, (m)->base + _pteo + 0, (lo));           \
 346                 nvkm_wo64((m)->memory, (m)->base + _pteo + 8, (hi));           \
 347                 _pteo += 0x10;                                                 \
 348         }                                                                      \
 349 } while(0)
 350
 351 #define VMM_WO128(m,v,o,lo,hi) VMM_XO128((m),(v),(o),(lo),(hi), 1, "")
 352 #define VMM_FO128(m,v,o,lo,hi,c) do {                                          \
 353         nvkm_kmap((m)->memory);                                                \
 354         VMM_XO128((m),(v),(o),(lo),(hi),(c), " %08x", (c));                    \
 355         nvkm_done((m)->memory);                                                \
 356 } while(0)
 357 #endif