1 /* 2 * Helpers for loads and stores 3 * 4 * Copyright (c) 2003-2005 Fabrice Bellard 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "qemu/log.h" 22 #include "cpu.h" 23 #include "tcg/tcg.h" 24 #include "exec/helper-proto.h" 25 #include "exec/exec-all.h" 26 #include "exec/cpu_ldst.h" 27 #include "asi.h" 28 29 //#define DEBUG_MMU 30 //#define DEBUG_MXCC 31 //#define DEBUG_UNASSIGNED 32 //#define DEBUG_ASI 33 //#define DEBUG_CACHE_CONTROL 34 35 #ifdef DEBUG_MMU 36 #define DPRINTF_MMU(fmt, ...) \ 37 do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0) 38 #else 39 #define DPRINTF_MMU(fmt, ...) do {} while (0) 40 #endif 41 42 #ifdef DEBUG_MXCC 43 #define DPRINTF_MXCC(fmt, ...) \ 44 do { printf("MXCC: " fmt , ## __VA_ARGS__); } while (0) 45 #else 46 #define DPRINTF_MXCC(fmt, ...) do {} while (0) 47 #endif 48 49 #ifdef DEBUG_ASI 50 #define DPRINTF_ASI(fmt, ...) \ 51 do { printf("ASI: " fmt , ## __VA_ARGS__); } while (0) 52 #endif 53 54 #ifdef DEBUG_CACHE_CONTROL 55 #define DPRINTF_CACHE_CONTROL(fmt, ...) \ 56 do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0) 57 #else 58 #define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0) 59 #endif 60 61 #ifdef TARGET_SPARC64 62 #ifndef TARGET_ABI32 63 #define AM_CHECK(env1) ((env1)->pstate & PS_AM) 64 #else 65 #define AM_CHECK(env1) (1) 66 #endif 67 #endif 68 69 #define QT0 (env->qt0) 70 #define QT1 (env->qt1) 71 72 #if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) 73 /* Calculates TSB pointer value for fault page size 74 * UltraSPARC IIi has fixed sizes (8k or 64k) for the page pointers 75 * UA2005 holds the page size configuration in mmu_ctx registers */ 76 static uint64_t ultrasparc_tsb_pointer(CPUSPARCState *env, 77 const SparcV9MMU *mmu, const int idx) 78 { 79 uint64_t tsb_register; 80 int page_size; 81 if (cpu_has_hypervisor(env)) { 82 int tsb_index = 0; 83 int ctx = mmu->tag_access & 0x1fffULL; 84 uint64_t ctx_register = mmu->sun4v_ctx_config[ctx ? 1 : 0]; 85 tsb_index = idx; 86 tsb_index |= ctx ? 2 : 0; 87 page_size = idx ? ctx_register >> 8 : ctx_register; 88 page_size &= 7; 89 tsb_register = mmu->sun4v_tsb_pointers[tsb_index]; 90 } else { 91 page_size = idx; 92 tsb_register = mmu->tsb; 93 } 94 int tsb_split = (tsb_register & 0x1000ULL) ? 1 : 0; 95 int tsb_size = tsb_register & 0xf; 96 97 uint64_t tsb_base_mask = (~0x1fffULL) << tsb_size; 98 99 /* move va bits to correct position, 100 * the context bits will be masked out later */ 101 uint64_t va = mmu->tag_access >> (3 * page_size + 9); 102 103 /* calculate tsb_base mask and adjust va if split is in use */ 104 if (tsb_split) { 105 if (idx == 0) { 106 va &= ~(1ULL << (13 + tsb_size)); 107 } else { 108 va |= (1ULL << (13 + tsb_size)); 109 } 110 tsb_base_mask <<= 1; 111 } 112 113 return ((tsb_register & tsb_base_mask) | (va & ~tsb_base_mask)) & ~0xfULL; 114 } 115 116 /* Calculates tag target register value by reordering bits 117 in tag access register */ 118 static uint64_t ultrasparc_tag_target(uint64_t tag_access_register) 119 { 120 return ((tag_access_register & 0x1fff) << 48) | (tag_access_register >> 22); 121 } 122 123 static void replace_tlb_entry(SparcTLBEntry *tlb, 124 uint64_t tlb_tag, uint64_t tlb_tte, 125 CPUSPARCState *env) 126 { 127 target_ulong mask, size, va, offset; 128 129 /* flush page range if translation is valid */ 130 if (TTE_IS_VALID(tlb->tte)) { 131 CPUState *cs = env_cpu(env); 132 133 size = 8192ULL << 3 * TTE_PGSIZE(tlb->tte); 134 mask = 1ULL + ~size; 135 136 va = tlb->tag & mask; 137 138 for (offset = 0; offset < size; offset += TARGET_PAGE_SIZE) { 139 tlb_flush_page(cs, va + offset); 140 } 141 } 142 143 tlb->tag = tlb_tag; 144 tlb->tte = tlb_tte; 145 } 146 147 static void demap_tlb(SparcTLBEntry *tlb, target_ulong demap_addr, 148 const char *strmmu, CPUSPARCState *env1) 149 { 150 unsigned int i; 151 target_ulong mask; 152 uint64_t context; 153 154 int is_demap_context = (demap_addr >> 6) & 1; 155 156 /* demap context */ 157 switch ((demap_addr >> 4) & 3) { 158 case 0: /* primary */ 159 context = env1->dmmu.mmu_primary_context; 160 break; 161 case 1: /* secondary */ 162 context = env1->dmmu.mmu_secondary_context; 163 break; 164 case 2: /* nucleus */ 165 context = 0; 166 break; 167 case 3: /* reserved */ 168 default: 169 return; 170 } 171 172 for (i = 0; i < 64; i++) { 173 if (TTE_IS_VALID(tlb[i].tte)) { 174 175 if (is_demap_context) { 176 /* will remove non-global entries matching context value */ 177 if (TTE_IS_GLOBAL(tlb[i].tte) || 178 !tlb_compare_context(&tlb[i], context)) { 179 continue; 180 } 181 } else { 182 /* demap page 183 will remove any entry matching VA */ 184 mask = 0xffffffffffffe000ULL; 185 mask <<= 3 * ((tlb[i].tte >> 61) & 3); 186 187 if (!compare_masked(demap_addr, tlb[i].tag, mask)) { 188 continue; 189 } 190 191 /* entry should be global or matching context value */ 192 if (!TTE_IS_GLOBAL(tlb[i].tte) && 193 !tlb_compare_context(&tlb[i], context)) { 194 continue; 195 } 196 } 197 198 replace_tlb_entry(&tlb[i], 0, 0, env1); 199 #ifdef DEBUG_MMU 200 DPRINTF_MMU("%s demap invalidated entry [%02u]\n", strmmu, i); 201 dump_mmu(env1); 202 #endif 203 } 204 } 205 } 206 207 static uint64_t sun4v_tte_to_sun4u(CPUSPARCState *env, uint64_t tag, 208 uint64_t sun4v_tte) 209 { 210 uint64_t sun4u_tte; 211 if (!(cpu_has_hypervisor(env) && (tag & TLB_UST1_IS_SUN4V_BIT))) { 212 /* is already in the sun4u format */ 213 return sun4v_tte; 214 } 215 sun4u_tte = TTE_PA(sun4v_tte) | (sun4v_tte & TTE_VALID_BIT); 216 sun4u_tte |= (sun4v_tte & 3ULL) << 61; /* TTE_PGSIZE */ 217 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_NFO_BIT_UA2005, TTE_NFO_BIT); 218 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_USED_BIT_UA2005, TTE_USED_BIT); 219 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_W_OK_BIT_UA2005, TTE_W_OK_BIT); 220 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_SIDEEFFECT_BIT_UA2005, 221 TTE_SIDEEFFECT_BIT); 222 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_PRIV_BIT_UA2005, TTE_PRIV_BIT); 223 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_LOCKED_BIT_UA2005, TTE_LOCKED_BIT); 224 return sun4u_tte; 225 } 226 227 static void replace_tlb_1bit_lru(SparcTLBEntry *tlb, 228 uint64_t tlb_tag, uint64_t tlb_tte, 229 const char *strmmu, CPUSPARCState *env1, 230 uint64_t addr) 231 { 232 unsigned int i, replace_used; 233 234 tlb_tte = sun4v_tte_to_sun4u(env1, addr, tlb_tte); 235 if (cpu_has_hypervisor(env1)) { 236 uint64_t new_vaddr = tlb_tag & ~0x1fffULL; 237 uint64_t new_size = 8192ULL << 3 * TTE_PGSIZE(tlb_tte); 238 uint32_t new_ctx = tlb_tag & 0x1fffU; 239 for (i = 0; i < 64; i++) { 240 uint32_t ctx = tlb[i].tag & 0x1fffU; 241 /* check if new mapping overlaps an existing one */ 242 if (new_ctx == ctx) { 243 uint64_t vaddr = tlb[i].tag & ~0x1fffULL; 244 uint64_t size = 8192ULL << 3 * TTE_PGSIZE(tlb[i].tte); 245 if (new_vaddr == vaddr 246 || (new_vaddr < vaddr + size 247 && vaddr < new_vaddr + new_size)) { 248 DPRINTF_MMU("auto demap entry [%d] %lx->%lx\n", i, vaddr, 249 new_vaddr); 250 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); 251 return; 252 } 253 } 254 255 } 256 } 257 /* Try replacing invalid entry */ 258 for (i = 0; i < 64; i++) { 259 if (!TTE_IS_VALID(tlb[i].tte)) { 260 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); 261 #ifdef DEBUG_MMU 262 DPRINTF_MMU("%s lru replaced invalid entry [%i]\n", strmmu, i); 263 dump_mmu(env1); 264 #endif 265 return; 266 } 267 } 268 269 /* All entries are valid, try replacing unlocked entry */ 270 271 for (replace_used = 0; replace_used < 2; ++replace_used) { 272 273 /* Used entries are not replaced on first pass */ 274 275 for (i = 0; i < 64; i++) { 276 if (!TTE_IS_LOCKED(tlb[i].tte) && !TTE_IS_USED(tlb[i].tte)) { 277 278 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); 279 #ifdef DEBUG_MMU 280 DPRINTF_MMU("%s lru replaced unlocked %s entry [%i]\n", 281 strmmu, (replace_used ? "used" : "unused"), i); 282 dump_mmu(env1); 283 #endif 284 return; 285 } 286 } 287 288 /* Now reset used bit and search for unused entries again */ 289 290 for (i = 0; i < 64; i++) { 291 TTE_SET_UNUSED(tlb[i].tte); 292 } 293 } 294 295 #ifdef DEBUG_MMU 296 DPRINTF_MMU("%s lru replacement: no free entries available, " 297 "replacing the last one\n", strmmu); 298 #endif 299 /* corner case: the last entry is replaced anyway */ 300 replace_tlb_entry(&tlb[63], tlb_tag, tlb_tte, env1); 301 } 302 303 #endif 304 305 #ifdef TARGET_SPARC64 306 /* returns true if access using this ASI is to have address translated by MMU 307 otherwise access is to raw physical address */ 308 /* TODO: check sparc32 bits */ 309 static inline int is_translating_asi(int asi) 310 { 311 /* Ultrasparc IIi translating asi 312 - note this list is defined by cpu implementation 313 */ 314 switch (asi) { 315 case 0x04 ... 0x11: 316 case 0x16 ... 0x19: 317 case 0x1E ... 0x1F: 318 case 0x24 ... 0x2C: 319 case 0x70 ... 0x73: 320 case 0x78 ... 0x79: 321 case 0x80 ... 0xFF: 322 return 1; 323 324 default: 325 return 0; 326 } 327 } 328 329 static inline target_ulong address_mask(CPUSPARCState *env1, target_ulong addr) 330 { 331 if (AM_CHECK(env1)) { 332 addr &= 0xffffffffULL; 333 } 334 return addr; 335 } 336 337 static inline target_ulong asi_address_mask(CPUSPARCState *env, 338 int asi, target_ulong addr) 339 { 340 if (is_translating_asi(asi)) { 341 addr = address_mask(env, addr); 342 } 343 return addr; 344 } 345 346 #ifndef CONFIG_USER_ONLY 347 static inline void do_check_asi(CPUSPARCState *env, int asi, uintptr_t ra) 348 { 349 /* ASIs >= 0x80 are user mode. 350 * ASIs >= 0x30 are hyper mode (or super if hyper is not available). 351 * ASIs <= 0x2f are super mode. 352 */ 353 if (asi < 0x80 354 && !cpu_hypervisor_mode(env) 355 && (!cpu_supervisor_mode(env) 356 || (asi >= 0x30 && cpu_has_hypervisor(env)))) { 357 cpu_raise_exception_ra(env, TT_PRIV_ACT, ra); 358 } 359 } 360 #endif /* !CONFIG_USER_ONLY */ 361 #endif 362 363 static void do_check_align(CPUSPARCState *env, target_ulong addr, 364 uint32_t align, uintptr_t ra) 365 { 366 if (addr & align) { 367 cpu_raise_exception_ra(env, TT_UNALIGNED, ra); 368 } 369 } 370 371 void helper_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align) 372 { 373 do_check_align(env, addr, align, GETPC()); 374 } 375 376 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && \ 377 defined(DEBUG_MXCC) 378 static void dump_mxcc(CPUSPARCState *env) 379 { 380 printf("mxccdata: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 381 "\n", 382 env->mxccdata[0], env->mxccdata[1], 383 env->mxccdata[2], env->mxccdata[3]); 384 printf("mxccregs: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 385 "\n" 386 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 387 "\n", 388 env->mxccregs[0], env->mxccregs[1], 389 env->mxccregs[2], env->mxccregs[3], 390 env->mxccregs[4], env->mxccregs[5], 391 env->mxccregs[6], env->mxccregs[7]); 392 } 393 #endif 394 395 #if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \ 396 && defined(DEBUG_ASI) 397 static void dump_asi(const char *txt, target_ulong addr, int asi, int size, 398 uint64_t r1) 399 { 400 switch (size) { 401 case 1: 402 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt, 403 addr, asi, r1 & 0xff); 404 break; 405 case 2: 406 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt, 407 addr, asi, r1 & 0xffff); 408 break; 409 case 4: 410 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt, 411 addr, asi, r1 & 0xffffffff); 412 break; 413 case 8: 414 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt, 415 addr, asi, r1); 416 break; 417 } 418 } 419 #endif 420 421 #ifndef CONFIG_USER_ONLY 422 #ifndef TARGET_SPARC64 423 static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr, 424 bool is_write, bool is_exec, int is_asi, 425 unsigned size, uintptr_t retaddr) 426 { 427 SPARCCPU *cpu = SPARC_CPU(cs); 428 CPUSPARCState *env = &cpu->env; 429 int fault_type; 430 431 #ifdef DEBUG_UNASSIGNED 432 if (is_asi) { 433 printf("Unassigned mem %s access of %d byte%s to " HWADDR_FMT_plx 434 " asi 0x%02x from " TARGET_FMT_lx "\n", 435 is_exec ? "exec" : is_write ? "write" : "read", size, 436 size == 1 ? "" : "s", addr, is_asi, env->pc); 437 } else { 438 printf("Unassigned mem %s access of %d byte%s to " HWADDR_FMT_plx 439 " from " TARGET_FMT_lx "\n", 440 is_exec ? "exec" : is_write ? "write" : "read", size, 441 size == 1 ? "" : "s", addr, env->pc); 442 } 443 #endif 444 /* Don't overwrite translation and access faults */ 445 fault_type = (env->mmuregs[3] & 0x1c) >> 2; 446 if ((fault_type > 4) || (fault_type == 0)) { 447 env->mmuregs[3] = 0; /* Fault status register */ 448 if (is_asi) { 449 env->mmuregs[3] |= 1 << 16; 450 } 451 if (env->psrs) { 452 env->mmuregs[3] |= 1 << 5; 453 } 454 if (is_exec) { 455 env->mmuregs[3] |= 1 << 6; 456 } 457 if (is_write) { 458 env->mmuregs[3] |= 1 << 7; 459 } 460 env->mmuregs[3] |= (5 << 2) | 2; 461 /* SuperSPARC will never place instruction fault addresses in the FAR */ 462 if (!is_exec) { 463 env->mmuregs[4] = addr; /* Fault address register */ 464 } 465 } 466 /* overflow (same type fault was not read before another fault) */ 467 if (fault_type == ((env->mmuregs[3] & 0x1c)) >> 2) { 468 env->mmuregs[3] |= 1; 469 } 470 471 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) { 472 int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS; 473 cpu_raise_exception_ra(env, tt, retaddr); 474 } 475 476 /* 477 * flush neverland mappings created during no-fault mode, 478 * so the sequential MMU faults report proper fault types 479 */ 480 if (env->mmuregs[0] & MMU_NF) { 481 tlb_flush(cs); 482 } 483 } 484 #else 485 static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr, 486 bool is_write, bool is_exec, int is_asi, 487 unsigned size, uintptr_t retaddr) 488 { 489 SPARCCPU *cpu = SPARC_CPU(cs); 490 CPUSPARCState *env = &cpu->env; 491 492 #ifdef DEBUG_UNASSIGNED 493 printf("Unassigned mem access to " HWADDR_FMT_plx " from " TARGET_FMT_lx 494 "\n", addr, env->pc); 495 #endif 496 497 if (is_exec) { /* XXX has_hypervisor */ 498 if (env->lsu & (IMMU_E)) { 499 cpu_raise_exception_ra(env, TT_CODE_ACCESS, retaddr); 500 } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { 501 cpu_raise_exception_ra(env, TT_INSN_REAL_TRANSLATION_MISS, retaddr); 502 } 503 } else { 504 if (env->lsu & (DMMU_E)) { 505 cpu_raise_exception_ra(env, TT_DATA_ACCESS, retaddr); 506 } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { 507 cpu_raise_exception_ra(env, TT_DATA_REAL_TRANSLATION_MISS, retaddr); 508 } 509 } 510 } 511 #endif 512 #endif 513 514 #ifndef TARGET_SPARC64 515 #ifndef CONFIG_USER_ONLY 516 517 518 /* Leon3 cache control */ 519 520 static void leon3_cache_control_st(CPUSPARCState *env, target_ulong addr, 521 uint64_t val, int size) 522 { 523 DPRINTF_CACHE_CONTROL("st addr:%08x, val:%" PRIx64 ", size:%d\n", 524 addr, val, size); 525 526 if (size != 4) { 527 DPRINTF_CACHE_CONTROL("32bits only\n"); 528 return; 529 } 530 531 switch (addr) { 532 case 0x00: /* Cache control */ 533 534 /* These values must always be read as zeros */ 535 val &= ~CACHE_CTRL_FD; 536 val &= ~CACHE_CTRL_FI; 537 val &= ~CACHE_CTRL_IB; 538 val &= ~CACHE_CTRL_IP; 539 val &= ~CACHE_CTRL_DP; 540 541 env->cache_control = val; 542 break; 543 case 0x04: /* Instruction cache configuration */ 544 case 0x08: /* Data cache configuration */ 545 /* Read Only */ 546 break; 547 default: 548 DPRINTF_CACHE_CONTROL("write unknown register %08x\n", addr); 549 break; 550 }; 551 } 552 553 static uint64_t leon3_cache_control_ld(CPUSPARCState *env, target_ulong addr, 554 int size) 555 { 556 uint64_t ret = 0; 557 558 if (size != 4) { 559 DPRINTF_CACHE_CONTROL("32bits only\n"); 560 return 0; 561 } 562 563 switch (addr) { 564 case 0x00: /* Cache control */ 565 ret = env->cache_control; 566 break; 567 568 /* Configuration registers are read and only always keep those 569 predefined values */ 570 571 case 0x04: /* Instruction cache configuration */ 572 ret = 0x10220000; 573 break; 574 case 0x08: /* Data cache configuration */ 575 ret = 0x18220000; 576 break; 577 default: 578 DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr); 579 break; 580 }; 581 DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n", 582 addr, ret, size); 583 return ret; 584 } 585 586 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, 587 int asi, uint32_t memop) 588 { 589 int size = 1 << (memop & MO_SIZE); 590 int sign = memop & MO_SIGN; 591 CPUState *cs = env_cpu(env); 592 uint64_t ret = 0; 593 #if defined(DEBUG_MXCC) || defined(DEBUG_ASI) 594 uint32_t last_addr = addr; 595 #endif 596 MemOpIdx oi; 597 598 do_check_align(env, addr, size - 1, GETPC()); 599 switch (asi) { 600 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */ 601 /* case ASI_LEON_CACHEREGS: Leon3 cache control */ 602 switch (addr) { 603 case 0x00: /* Leon3 Cache Control */ 604 case 0x08: /* Leon3 Instruction Cache config */ 605 case 0x0C: /* Leon3 Date Cache config */ 606 if (env->def.features & CPU_FEATURE_CACHE_CTRL) { 607 ret = leon3_cache_control_ld(env, addr, size); 608 } 609 break; 610 case 0x01c00a00: /* MXCC control register */ 611 if (size == 8) { 612 ret = env->mxccregs[3]; 613 } else { 614 qemu_log_mask(LOG_UNIMP, 615 "%08x: unimplemented access size: %d\n", addr, 616 size); 617 } 618 break; 619 case 0x01c00a04: /* MXCC control register */ 620 if (size == 4) { 621 ret = env->mxccregs[3]; 622 } else { 623 qemu_log_mask(LOG_UNIMP, 624 "%08x: unimplemented access size: %d\n", addr, 625 size); 626 } 627 break; 628 case 0x01c00c00: /* Module reset register */ 629 if (size == 8) { 630 ret = env->mxccregs[5]; 631 /* should we do something here? */ 632 } else { 633 qemu_log_mask(LOG_UNIMP, 634 "%08x: unimplemented access size: %d\n", addr, 635 size); 636 } 637 break; 638 case 0x01c00f00: /* MBus port address register */ 639 if (size == 8) { 640 ret = env->mxccregs[7]; 641 } else { 642 qemu_log_mask(LOG_UNIMP, 643 "%08x: unimplemented access size: %d\n", addr, 644 size); 645 } 646 break; 647 default: 648 qemu_log_mask(LOG_UNIMP, 649 "%08x: unimplemented address, size: %d\n", addr, 650 size); 651 break; 652 } 653 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, " 654 "addr = %08x -> ret = %" PRIx64 "," 655 "addr = %08x\n", asi, size, sign, last_addr, ret, addr); 656 #ifdef DEBUG_MXCC 657 dump_mxcc(env); 658 #endif 659 break; 660 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU probe */ 661 case ASI_LEON_MMUFLUSH: /* LEON3 MMU probe */ 662 { 663 int mmulev; 664 665 mmulev = (addr >> 8) & 15; 666 if (mmulev > 4) { 667 ret = 0; 668 } else { 669 ret = mmu_probe(env, addr, mmulev); 670 } 671 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n", 672 addr, mmulev, ret); 673 } 674 break; 675 case ASI_M_MMUREGS: /* SuperSparc MMU regs */ 676 case ASI_LEON_MMUREGS: /* LEON3 MMU regs */ 677 { 678 int reg = (addr >> 8) & 0x1f; 679 680 ret = env->mmuregs[reg]; 681 if (reg == 3) { /* Fault status cleared on read */ 682 env->mmuregs[3] = 0; 683 } else if (reg == 0x13) { /* Fault status read */ 684 ret = env->mmuregs[3]; 685 } else if (reg == 0x14) { /* Fault address read */ 686 ret = env->mmuregs[4]; 687 } 688 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret); 689 } 690 break; 691 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */ 692 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */ 693 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */ 694 break; 695 case ASI_KERNELTXT: /* Supervisor code access */ 696 oi = make_memop_idx(memop, cpu_mmu_index(env, true)); 697 switch (size) { 698 case 1: 699 ret = cpu_ldb_code_mmu(env, addr, oi, GETPC()); 700 break; 701 case 2: 702 ret = cpu_ldw_code_mmu(env, addr, oi, GETPC()); 703 break; 704 default: 705 case 4: 706 ret = cpu_ldl_code_mmu(env, addr, oi, GETPC()); 707 break; 708 case 8: 709 ret = cpu_ldq_code_mmu(env, addr, oi, GETPC()); 710 break; 711 } 712 break; 713 case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */ 714 case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */ 715 case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */ 716 case ASI_M_DATAC_DATA: /* SparcStation 5 D-cache data */ 717 break; 718 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */ 719 { 720 MemTxResult result; 721 hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32); 722 723 switch (size) { 724 case 1: 725 ret = address_space_ldub(cs->as, access_addr, 726 MEMTXATTRS_UNSPECIFIED, &result); 727 break; 728 case 2: 729 ret = address_space_lduw(cs->as, access_addr, 730 MEMTXATTRS_UNSPECIFIED, &result); 731 break; 732 default: 733 case 4: 734 ret = address_space_ldl(cs->as, access_addr, 735 MEMTXATTRS_UNSPECIFIED, &result); 736 break; 737 case 8: 738 ret = address_space_ldq(cs->as, access_addr, 739 MEMTXATTRS_UNSPECIFIED, &result); 740 break; 741 } 742 743 if (result != MEMTX_OK) { 744 sparc_raise_mmu_fault(cs, access_addr, false, false, false, 745 size, GETPC()); 746 } 747 break; 748 } 749 case 0x30: /* Turbosparc secondary cache diagnostic */ 750 case 0x31: /* Turbosparc RAM snoop */ 751 case 0x32: /* Turbosparc page table descriptor diagnostic */ 752 case 0x39: /* data cache diagnostic register */ 753 ret = 0; 754 break; 755 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers */ 756 { 757 int reg = (addr >> 8) & 3; 758 759 switch (reg) { 760 case 0: /* Breakpoint Value (Addr) */ 761 ret = env->mmubpregs[reg]; 762 break; 763 case 1: /* Breakpoint Mask */ 764 ret = env->mmubpregs[reg]; 765 break; 766 case 2: /* Breakpoint Control */ 767 ret = env->mmubpregs[reg]; 768 break; 769 case 3: /* Breakpoint Status */ 770 ret = env->mmubpregs[reg]; 771 env->mmubpregs[reg] = 0ULL; 772 break; 773 } 774 DPRINTF_MMU("read breakpoint reg[%d] 0x%016" PRIx64 "\n", reg, 775 ret); 776 } 777 break; 778 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */ 779 ret = env->mmubpctrv; 780 break; 781 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */ 782 ret = env->mmubpctrc; 783 break; 784 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */ 785 ret = env->mmubpctrs; 786 break; 787 case 0x4c: /* SuperSPARC MMU Breakpoint Action */ 788 ret = env->mmubpaction; 789 break; 790 case ASI_USERTXT: /* User code access, XXX */ 791 default: 792 sparc_raise_mmu_fault(cs, addr, false, false, asi, size, GETPC()); 793 ret = 0; 794 break; 795 796 case ASI_USERDATA: /* User data access */ 797 case ASI_KERNELDATA: /* Supervisor data access */ 798 case ASI_P: /* Implicit primary context data access (v9 only?) */ 799 case ASI_M_BYPASS: /* MMU passthrough */ 800 case ASI_LEON_BYPASS: /* LEON MMU passthrough */ 801 /* These are always handled inline. */ 802 g_assert_not_reached(); 803 } 804 if (sign) { 805 switch (size) { 806 case 1: 807 ret = (int8_t) ret; 808 break; 809 case 2: 810 ret = (int16_t) ret; 811 break; 812 case 4: 813 ret = (int32_t) ret; 814 break; 815 default: 816 break; 817 } 818 } 819 #ifdef DEBUG_ASI 820 dump_asi("read ", last_addr, asi, size, ret); 821 #endif 822 return ret; 823 } 824 825 void helper_st_asi(CPUSPARCState *env, target_ulong addr, uint64_t val, 826 int asi, uint32_t memop) 827 { 828 int size = 1 << (memop & MO_SIZE); 829 CPUState *cs = env_cpu(env); 830 831 do_check_align(env, addr, size - 1, GETPC()); 832 switch (asi) { 833 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */ 834 /* case ASI_LEON_CACHEREGS: Leon3 cache control */ 835 switch (addr) { 836 case 0x00: /* Leon3 Cache Control */ 837 case 0x08: /* Leon3 Instruction Cache config */ 838 case 0x0C: /* Leon3 Date Cache config */ 839 if (env->def.features & CPU_FEATURE_CACHE_CTRL) { 840 leon3_cache_control_st(env, addr, val, size); 841 } 842 break; 843 844 case 0x01c00000: /* MXCC stream data register 0 */ 845 if (size == 8) { 846 env->mxccdata[0] = val; 847 } else { 848 qemu_log_mask(LOG_UNIMP, 849 "%08x: unimplemented access size: %d\n", addr, 850 size); 851 } 852 break; 853 case 0x01c00008: /* MXCC stream data register 1 */ 854 if (size == 8) { 855 env->mxccdata[1] = val; 856 } else { 857 qemu_log_mask(LOG_UNIMP, 858 "%08x: unimplemented access size: %d\n", addr, 859 size); 860 } 861 break; 862 case 0x01c00010: /* MXCC stream data register 2 */ 863 if (size == 8) { 864 env->mxccdata[2] = val; 865 } else { 866 qemu_log_mask(LOG_UNIMP, 867 "%08x: unimplemented access size: %d\n", addr, 868 size); 869 } 870 break; 871 case 0x01c00018: /* MXCC stream data register 3 */ 872 if (size == 8) { 873 env->mxccdata[3] = val; 874 } else { 875 qemu_log_mask(LOG_UNIMP, 876 "%08x: unimplemented access size: %d\n", addr, 877 size); 878 } 879 break; 880 case 0x01c00100: /* MXCC stream source */ 881 { 882 int i; 883 884 if (size == 8) { 885 env->mxccregs[0] = val; 886 } else { 887 qemu_log_mask(LOG_UNIMP, 888 "%08x: unimplemented access size: %d\n", addr, 889 size); 890 } 891 892 for (i = 0; i < 4; i++) { 893 MemTxResult result; 894 hwaddr access_addr = (env->mxccregs[0] & 0xffffffffULL) + 8 * i; 895 896 env->mxccdata[i] = address_space_ldq(cs->as, 897 access_addr, 898 MEMTXATTRS_UNSPECIFIED, 899 &result); 900 if (result != MEMTX_OK) { 901 /* TODO: investigate whether this is the right behaviour */ 902 sparc_raise_mmu_fault(cs, access_addr, false, false, 903 false, size, GETPC()); 904 } 905 } 906 break; 907 } 908 case 0x01c00200: /* MXCC stream destination */ 909 { 910 int i; 911 912 if (size == 8) { 913 env->mxccregs[1] = val; 914 } else { 915 qemu_log_mask(LOG_UNIMP, 916 "%08x: unimplemented access size: %d\n", addr, 917 size); 918 } 919 920 for (i = 0; i < 4; i++) { 921 MemTxResult result; 922 hwaddr access_addr = (env->mxccregs[1] & 0xffffffffULL) + 8 * i; 923 924 address_space_stq(cs->as, access_addr, env->mxccdata[i], 925 MEMTXATTRS_UNSPECIFIED, &result); 926 927 if (result != MEMTX_OK) { 928 /* TODO: investigate whether this is the right behaviour */ 929 sparc_raise_mmu_fault(cs, access_addr, true, false, 930 false, size, GETPC()); 931 } 932 } 933 break; 934 } 935 case 0x01c00a00: /* MXCC control register */ 936 if (size == 8) { 937 env->mxccregs[3] = val; 938 } else { 939 qemu_log_mask(LOG_UNIMP, 940 "%08x: unimplemented access size: %d\n", addr, 941 size); 942 } 943 break; 944 case 0x01c00a04: /* MXCC control register */ 945 if (size == 4) { 946 env->mxccregs[3] = (env->mxccregs[3] & 0xffffffff00000000ULL) 947 | val; 948 } else { 949 qemu_log_mask(LOG_UNIMP, 950 "%08x: unimplemented access size: %d\n", addr, 951 size); 952 } 953 break; 954 case 0x01c00e00: /* MXCC error register */ 955 /* writing a 1 bit clears the error */ 956 if (size == 8) { 957 env->mxccregs[6] &= ~val; 958 } else { 959 qemu_log_mask(LOG_UNIMP, 960 "%08x: unimplemented access size: %d\n", addr, 961 size); 962 } 963 break; 964 case 0x01c00f00: /* MBus port address register */ 965 if (size == 8) { 966 env->mxccregs[7] = val; 967 } else { 968 qemu_log_mask(LOG_UNIMP, 969 "%08x: unimplemented access size: %d\n", addr, 970 size); 971 } 972 break; 973 default: 974 qemu_log_mask(LOG_UNIMP, 975 "%08x: unimplemented address, size: %d\n", addr, 976 size); 977 break; 978 } 979 DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %" PRIx64 "\n", 980 asi, size, addr, val); 981 #ifdef DEBUG_MXCC 982 dump_mxcc(env); 983 #endif 984 break; 985 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU flush */ 986 case ASI_LEON_MMUFLUSH: /* LEON3 MMU flush */ 987 { 988 int mmulev; 989 990 mmulev = (addr >> 8) & 15; 991 DPRINTF_MMU("mmu flush level %d\n", mmulev); 992 switch (mmulev) { 993 case 0: /* flush page */ 994 tlb_flush_page(cs, addr & 0xfffff000); 995 break; 996 case 1: /* flush segment (256k) */ 997 case 2: /* flush region (16M) */ 998 case 3: /* flush context (4G) */ 999 case 4: /* flush entire */ 1000 tlb_flush(cs); 1001 break; 1002 default: 1003 break; 1004 } 1005 #ifdef DEBUG_MMU 1006 dump_mmu(env); 1007 #endif 1008 } 1009 break; 1010 case ASI_M_MMUREGS: /* write MMU regs */ 1011 case ASI_LEON_MMUREGS: /* LEON3 write MMU regs */ 1012 { 1013 int reg = (addr >> 8) & 0x1f; 1014 uint32_t oldreg; 1015 1016 oldreg = env->mmuregs[reg]; 1017 switch (reg) { 1018 case 0: /* Control Register */ 1019 env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) | 1020 (val & 0x00ffffff); 1021 /* Mappings generated during no-fault mode 1022 are invalid in normal mode. */ 1023 if ((oldreg ^ env->mmuregs[reg]) 1024 & (MMU_NF | env->def.mmu_bm)) { 1025 tlb_flush(cs); 1026 } 1027 break; 1028 case 1: /* Context Table Pointer Register */ 1029 env->mmuregs[reg] = val & env->def.mmu_ctpr_mask; 1030 break; 1031 case 2: /* Context Register */ 1032 env->mmuregs[reg] = val & env->def.mmu_cxr_mask; 1033 if (oldreg != env->mmuregs[reg]) { 1034 /* we flush when the MMU context changes because 1035 QEMU has no MMU context support */ 1036 tlb_flush(cs); 1037 } 1038 break; 1039 case 3: /* Synchronous Fault Status Register with Clear */ 1040 case 4: /* Synchronous Fault Address Register */ 1041 break; 1042 case 0x10: /* TLB Replacement Control Register */ 1043 env->mmuregs[reg] = val & env->def.mmu_trcr_mask; 1044 break; 1045 case 0x13: /* Synchronous Fault Status Register with Read 1046 and Clear */ 1047 env->mmuregs[3] = val & env->def.mmu_sfsr_mask; 1048 break; 1049 case 0x14: /* Synchronous Fault Address Register */ 1050 env->mmuregs[4] = val; 1051 break; 1052 default: 1053 env->mmuregs[reg] = val; 1054 break; 1055 } 1056 if (oldreg != env->mmuregs[reg]) { 1057 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", 1058 reg, oldreg, env->mmuregs[reg]); 1059 } 1060 #ifdef DEBUG_MMU 1061 dump_mmu(env); 1062 #endif 1063 } 1064 break; 1065 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */ 1066 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */ 1067 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */ 1068 break; 1069 case ASI_M_TXTC_TAG: /* I-cache tag */ 1070 case ASI_M_TXTC_DATA: /* I-cache data */ 1071 case ASI_M_DATAC_TAG: /* D-cache tag */ 1072 case ASI_M_DATAC_DATA: /* D-cache data */ 1073 case ASI_M_FLUSH_PAGE: /* I/D-cache flush page */ 1074 case ASI_M_FLUSH_SEG: /* I/D-cache flush segment */ 1075 case ASI_M_FLUSH_REGION: /* I/D-cache flush region */ 1076 case ASI_M_FLUSH_CTX: /* I/D-cache flush context */ 1077 case ASI_M_FLUSH_USER: /* I/D-cache flush user */ 1078 break; 1079 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */ 1080 { 1081 MemTxResult result; 1082 hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32); 1083 1084 switch (size) { 1085 case 1: 1086 address_space_stb(cs->as, access_addr, val, 1087 MEMTXATTRS_UNSPECIFIED, &result); 1088 break; 1089 case 2: 1090 address_space_stw(cs->as, access_addr, val, 1091 MEMTXATTRS_UNSPECIFIED, &result); 1092 break; 1093 case 4: 1094 default: 1095 address_space_stl(cs->as, access_addr, val, 1096 MEMTXATTRS_UNSPECIFIED, &result); 1097 break; 1098 case 8: 1099 address_space_stq(cs->as, access_addr, val, 1100 MEMTXATTRS_UNSPECIFIED, &result); 1101 break; 1102 } 1103 if (result != MEMTX_OK) { 1104 sparc_raise_mmu_fault(cs, access_addr, true, false, false, 1105 size, GETPC()); 1106 } 1107 } 1108 break; 1109 case 0x30: /* store buffer tags or Turbosparc secondary cache diagnostic */ 1110 case 0x31: /* store buffer data, Ross RT620 I-cache flush or 1111 Turbosparc snoop RAM */ 1112 case 0x32: /* store buffer control or Turbosparc page table 1113 descriptor diagnostic */ 1114 case 0x36: /* I-cache flash clear */ 1115 case 0x37: /* D-cache flash clear */ 1116 break; 1117 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers*/ 1118 { 1119 int reg = (addr >> 8) & 3; 1120 1121 switch (reg) { 1122 case 0: /* Breakpoint Value (Addr) */ 1123 env->mmubpregs[reg] = (val & 0xfffffffffULL); 1124 break; 1125 case 1: /* Breakpoint Mask */ 1126 env->mmubpregs[reg] = (val & 0xfffffffffULL); 1127 break; 1128 case 2: /* Breakpoint Control */ 1129 env->mmubpregs[reg] = (val & 0x7fULL); 1130 break; 1131 case 3: /* Breakpoint Status */ 1132 env->mmubpregs[reg] = (val & 0xfULL); 1133 break; 1134 } 1135 DPRINTF_MMU("write breakpoint reg[%d] 0x%016x\n", reg, 1136 env->mmuregs[reg]); 1137 } 1138 break; 1139 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */ 1140 env->mmubpctrv = val & 0xffffffff; 1141 break; 1142 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */ 1143 env->mmubpctrc = val & 0x3; 1144 break; 1145 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */ 1146 env->mmubpctrs = val & 0x3; 1147 break; 1148 case 0x4c: /* SuperSPARC MMU Breakpoint Action */ 1149 env->mmubpaction = val & 0x1fff; 1150 break; 1151 case ASI_USERTXT: /* User code access, XXX */ 1152 case ASI_KERNELTXT: /* Supervisor code access, XXX */ 1153 default: 1154 sparc_raise_mmu_fault(cs, addr, true, false, asi, size, GETPC()); 1155 break; 1156 1157 case ASI_USERDATA: /* User data access */ 1158 case ASI_KERNELDATA: /* Supervisor data access */ 1159 case ASI_P: 1160 case ASI_M_BYPASS: /* MMU passthrough */ 1161 case ASI_LEON_BYPASS: /* LEON MMU passthrough */ 1162 case ASI_M_BCOPY: /* Block copy, sta access */ 1163 case ASI_M_BFILL: /* Block fill, stda access */ 1164 /* These are always handled inline. */ 1165 g_assert_not_reached(); 1166 } 1167 #ifdef DEBUG_ASI 1168 dump_asi("write", addr, asi, size, val); 1169 #endif 1170 } 1171 1172 #endif /* CONFIG_USER_ONLY */ 1173 #else /* TARGET_SPARC64 */ 1174 1175 #ifdef CONFIG_USER_ONLY 1176 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, 1177 int asi, uint32_t memop) 1178 { 1179 int size = 1 << (memop & MO_SIZE); 1180 int sign = memop & MO_SIGN; 1181 uint64_t ret = 0; 1182 1183 if (asi < 0x80) { 1184 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC()); 1185 } 1186 do_check_align(env, addr, size - 1, GETPC()); 1187 addr = asi_address_mask(env, asi, addr); 1188 1189 switch (asi) { 1190 case ASI_PNF: /* Primary no-fault */ 1191 case ASI_PNFL: /* Primary no-fault LE */ 1192 case ASI_SNF: /* Secondary no-fault */ 1193 case ASI_SNFL: /* Secondary no-fault LE */ 1194 if (page_check_range(addr, size, PAGE_READ) == -1) { 1195 ret = 0; 1196 break; 1197 } 1198 switch (size) { 1199 case 1: 1200 ret = cpu_ldub_data(env, addr); 1201 break; 1202 case 2: 1203 ret = cpu_lduw_data(env, addr); 1204 break; 1205 case 4: 1206 ret = cpu_ldl_data(env, addr); 1207 break; 1208 case 8: 1209 ret = cpu_ldq_data(env, addr); 1210 break; 1211 default: 1212 g_assert_not_reached(); 1213 } 1214 break; 1215 break; 1216 1217 case ASI_P: /* Primary */ 1218 case ASI_PL: /* Primary LE */ 1219 case ASI_S: /* Secondary */ 1220 case ASI_SL: /* Secondary LE */ 1221 /* These are always handled inline. */ 1222 g_assert_not_reached(); 1223 1224 default: 1225 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC()); 1226 } 1227 1228 /* Convert from little endian */ 1229 switch (asi) { 1230 case ASI_PNFL: /* Primary no-fault LE */ 1231 case ASI_SNFL: /* Secondary no-fault LE */ 1232 switch (size) { 1233 case 2: 1234 ret = bswap16(ret); 1235 break; 1236 case 4: 1237 ret = bswap32(ret); 1238 break; 1239 case 8: 1240 ret = bswap64(ret); 1241 break; 1242 } 1243 } 1244 1245 /* Convert to signed number */ 1246 if (sign) { 1247 switch (size) { 1248 case 1: 1249 ret = (int8_t) ret; 1250 break; 1251 case 2: 1252 ret = (int16_t) ret; 1253 break; 1254 case 4: 1255 ret = (int32_t) ret; 1256 break; 1257 } 1258 } 1259 #ifdef DEBUG_ASI 1260 dump_asi("read", addr, asi, size, ret); 1261 #endif 1262 return ret; 1263 } 1264 1265 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, 1266 int asi, uint32_t memop) 1267 { 1268 int size = 1 << (memop & MO_SIZE); 1269 #ifdef DEBUG_ASI 1270 dump_asi("write", addr, asi, size, val); 1271 #endif 1272 if (asi < 0x80) { 1273 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC()); 1274 } 1275 do_check_align(env, addr, size - 1, GETPC()); 1276 1277 switch (asi) { 1278 case ASI_P: /* Primary */ 1279 case ASI_PL: /* Primary LE */ 1280 case ASI_S: /* Secondary */ 1281 case ASI_SL: /* Secondary LE */ 1282 /* These are always handled inline. */ 1283 g_assert_not_reached(); 1284 1285 case ASI_PNF: /* Primary no-fault, RO */ 1286 case ASI_SNF: /* Secondary no-fault, RO */ 1287 case ASI_PNFL: /* Primary no-fault LE, RO */ 1288 case ASI_SNFL: /* Secondary no-fault LE, RO */ 1289 default: 1290 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC()); 1291 } 1292 } 1293 1294 #else /* CONFIG_USER_ONLY */ 1295 1296 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, 1297 int asi, uint32_t memop) 1298 { 1299 int size = 1 << (memop & MO_SIZE); 1300 int sign = memop & MO_SIGN; 1301 CPUState *cs = env_cpu(env); 1302 uint64_t ret = 0; 1303 #if defined(DEBUG_ASI) 1304 target_ulong last_addr = addr; 1305 #endif 1306 1307 asi &= 0xff; 1308 1309 do_check_asi(env, asi, GETPC()); 1310 do_check_align(env, addr, size - 1, GETPC()); 1311 addr = asi_address_mask(env, asi, addr); 1312 1313 switch (asi) { 1314 case ASI_PNF: 1315 case ASI_PNFL: 1316 case ASI_SNF: 1317 case ASI_SNFL: 1318 { 1319 MemOpIdx oi; 1320 int idx = (env->pstate & PS_PRIV 1321 ? (asi & 1 ? MMU_KERNEL_SECONDARY_IDX : MMU_KERNEL_IDX) 1322 : (asi & 1 ? MMU_USER_SECONDARY_IDX : MMU_USER_IDX)); 1323 1324 if (cpu_get_phys_page_nofault(env, addr, idx) == -1ULL) { 1325 #ifdef DEBUG_ASI 1326 dump_asi("read ", last_addr, asi, size, ret); 1327 #endif 1328 /* exception_index is set in get_physical_address_data. */ 1329 cpu_raise_exception_ra(env, cs->exception_index, GETPC()); 1330 } 1331 oi = make_memop_idx(memop, idx); 1332 switch (size) { 1333 case 1: 1334 ret = cpu_ldb_mmu(env, addr, oi, GETPC()); 1335 break; 1336 case 2: 1337 ret = cpu_ldw_mmu(env, addr, oi, GETPC()); 1338 break; 1339 case 4: 1340 ret = cpu_ldl_mmu(env, addr, oi, GETPC()); 1341 break; 1342 case 8: 1343 ret = cpu_ldq_mmu(env, addr, oi, GETPC()); 1344 break; 1345 default: 1346 g_assert_not_reached(); 1347 } 1348 } 1349 break; 1350 1351 case ASI_AIUP: /* As if user primary */ 1352 case ASI_AIUS: /* As if user secondary */ 1353 case ASI_AIUPL: /* As if user primary LE */ 1354 case ASI_AIUSL: /* As if user secondary LE */ 1355 case ASI_P: /* Primary */ 1356 case ASI_S: /* Secondary */ 1357 case ASI_PL: /* Primary LE */ 1358 case ASI_SL: /* Secondary LE */ 1359 case ASI_REAL: /* Bypass */ 1360 case ASI_REAL_IO: /* Bypass, non-cacheable */ 1361 case ASI_REAL_L: /* Bypass LE */ 1362 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */ 1363 case ASI_N: /* Nucleus */ 1364 case ASI_NL: /* Nucleus Little Endian (LE) */ 1365 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */ 1366 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */ 1367 case ASI_TWINX_AIUP: /* As if user primary, twinx */ 1368 case ASI_TWINX_AIUS: /* As if user secondary, twinx */ 1369 case ASI_TWINX_REAL: /* Real address, twinx */ 1370 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */ 1371 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */ 1372 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */ 1373 case ASI_TWINX_N: /* Nucleus, twinx */ 1374 case ASI_TWINX_NL: /* Nucleus, twinx, LE */ 1375 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */ 1376 case ASI_TWINX_P: /* Primary, twinx */ 1377 case ASI_TWINX_PL: /* Primary, twinx, LE */ 1378 case ASI_TWINX_S: /* Secondary, twinx */ 1379 case ASI_TWINX_SL: /* Secondary, twinx, LE */ 1380 /* These are always handled inline. */ 1381 g_assert_not_reached(); 1382 1383 case ASI_UPA_CONFIG: /* UPA config */ 1384 /* XXX */ 1385 break; 1386 case ASI_LSU_CONTROL: /* LSU */ 1387 ret = env->lsu; 1388 break; 1389 case ASI_IMMU: /* I-MMU regs */ 1390 { 1391 int reg = (addr >> 3) & 0xf; 1392 switch (reg) { 1393 case 0: 1394 /* 0x00 I-TSB Tag Target register */ 1395 ret = ultrasparc_tag_target(env->immu.tag_access); 1396 break; 1397 case 3: /* SFSR */ 1398 ret = env->immu.sfsr; 1399 break; 1400 case 5: /* TSB access */ 1401 ret = env->immu.tsb; 1402 break; 1403 case 6: 1404 /* 0x30 I-TSB Tag Access register */ 1405 ret = env->immu.tag_access; 1406 break; 1407 default: 1408 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); 1409 ret = 0; 1410 } 1411 break; 1412 } 1413 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer */ 1414 { 1415 /* env->immuregs[5] holds I-MMU TSB register value 1416 env->immuregs[6] holds I-MMU Tag Access register value */ 1417 ret = ultrasparc_tsb_pointer(env, &env->immu, 0); 1418 break; 1419 } 1420 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer */ 1421 { 1422 /* env->immuregs[5] holds I-MMU TSB register value 1423 env->immuregs[6] holds I-MMU Tag Access register value */ 1424 ret = ultrasparc_tsb_pointer(env, &env->immu, 1); 1425 break; 1426 } 1427 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */ 1428 { 1429 int reg = (addr >> 3) & 0x3f; 1430 1431 ret = env->itlb[reg].tte; 1432 break; 1433 } 1434 case ASI_ITLB_TAG_READ: /* I-MMU tag read */ 1435 { 1436 int reg = (addr >> 3) & 0x3f; 1437 1438 ret = env->itlb[reg].tag; 1439 break; 1440 } 1441 case ASI_DMMU: /* D-MMU regs */ 1442 { 1443 int reg = (addr >> 3) & 0xf; 1444 switch (reg) { 1445 case 0: 1446 /* 0x00 D-TSB Tag Target register */ 1447 ret = ultrasparc_tag_target(env->dmmu.tag_access); 1448 break; 1449 case 1: /* 0x08 Primary Context */ 1450 ret = env->dmmu.mmu_primary_context; 1451 break; 1452 case 2: /* 0x10 Secondary Context */ 1453 ret = env->dmmu.mmu_secondary_context; 1454 break; 1455 case 3: /* SFSR */ 1456 ret = env->dmmu.sfsr; 1457 break; 1458 case 4: /* 0x20 SFAR */ 1459 ret = env->dmmu.sfar; 1460 break; 1461 case 5: /* 0x28 TSB access */ 1462 ret = env->dmmu.tsb; 1463 break; 1464 case 6: /* 0x30 D-TSB Tag Access register */ 1465 ret = env->dmmu.tag_access; 1466 break; 1467 case 7: 1468 ret = env->dmmu.virtual_watchpoint; 1469 break; 1470 case 8: 1471 ret = env->dmmu.physical_watchpoint; 1472 break; 1473 default: 1474 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); 1475 ret = 0; 1476 } 1477 break; 1478 } 1479 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer */ 1480 { 1481 /* env->dmmuregs[5] holds D-MMU TSB register value 1482 env->dmmuregs[6] holds D-MMU Tag Access register value */ 1483 ret = ultrasparc_tsb_pointer(env, &env->dmmu, 0); 1484 break; 1485 } 1486 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer */ 1487 { 1488 /* env->dmmuregs[5] holds D-MMU TSB register value 1489 env->dmmuregs[6] holds D-MMU Tag Access register value */ 1490 ret = ultrasparc_tsb_pointer(env, &env->dmmu, 1); 1491 break; 1492 } 1493 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */ 1494 { 1495 int reg = (addr >> 3) & 0x3f; 1496 1497 ret = env->dtlb[reg].tte; 1498 break; 1499 } 1500 case ASI_DTLB_TAG_READ: /* D-MMU tag read */ 1501 { 1502 int reg = (addr >> 3) & 0x3f; 1503 1504 ret = env->dtlb[reg].tag; 1505 break; 1506 } 1507 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */ 1508 break; 1509 case ASI_INTR_RECEIVE: /* Interrupt data receive */ 1510 ret = env->ivec_status; 1511 break; 1512 case ASI_INTR_R: /* Incoming interrupt vector, RO */ 1513 { 1514 int reg = (addr >> 4) & 0x3; 1515 if (reg < 3) { 1516 ret = env->ivec_data[reg]; 1517 } 1518 break; 1519 } 1520 case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ 1521 if (unlikely((addr >= 0x20) && (addr < 0x30))) { 1522 /* Hyperprivileged access only */ 1523 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); 1524 } 1525 /* fall through */ 1526 case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ 1527 { 1528 unsigned int i = (addr >> 3) & 0x7; 1529 ret = env->scratch[i]; 1530 break; 1531 } 1532 case ASI_MMU: /* UA2005 Context ID registers */ 1533 switch ((addr >> 3) & 0x3) { 1534 case 1: 1535 ret = env->dmmu.mmu_primary_context; 1536 break; 1537 case 2: 1538 ret = env->dmmu.mmu_secondary_context; 1539 break; 1540 default: 1541 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1542 } 1543 break; 1544 case ASI_DCACHE_DATA: /* D-cache data */ 1545 case ASI_DCACHE_TAG: /* D-cache tag access */ 1546 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ 1547 case ASI_AFSR: /* E-cache asynchronous fault status */ 1548 case ASI_AFAR: /* E-cache asynchronous fault address */ 1549 case ASI_EC_TAG_DATA: /* E-cache tag data */ 1550 case ASI_IC_INSTR: /* I-cache instruction access */ 1551 case ASI_IC_TAG: /* I-cache tag access */ 1552 case ASI_IC_PRE_DECODE: /* I-cache predecode */ 1553 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */ 1554 case ASI_EC_W: /* E-cache tag */ 1555 case ASI_EC_R: /* E-cache tag */ 1556 break; 1557 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer */ 1558 case ASI_ITLB_DATA_IN: /* I-MMU data in, WO */ 1559 case ASI_IMMU_DEMAP: /* I-MMU demap, WO */ 1560 case ASI_DTLB_DATA_IN: /* D-MMU data in, WO */ 1561 case ASI_DMMU_DEMAP: /* D-MMU demap, WO */ 1562 case ASI_INTR_W: /* Interrupt vector, WO */ 1563 default: 1564 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); 1565 ret = 0; 1566 break; 1567 } 1568 1569 /* Convert to signed number */ 1570 if (sign) { 1571 switch (size) { 1572 case 1: 1573 ret = (int8_t) ret; 1574 break; 1575 case 2: 1576 ret = (int16_t) ret; 1577 break; 1578 case 4: 1579 ret = (int32_t) ret; 1580 break; 1581 default: 1582 break; 1583 } 1584 } 1585 #ifdef DEBUG_ASI 1586 dump_asi("read ", last_addr, asi, size, ret); 1587 #endif 1588 return ret; 1589 } 1590 1591 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, 1592 int asi, uint32_t memop) 1593 { 1594 int size = 1 << (memop & MO_SIZE); 1595 CPUState *cs = env_cpu(env); 1596 1597 #ifdef DEBUG_ASI 1598 dump_asi("write", addr, asi, size, val); 1599 #endif 1600 1601 asi &= 0xff; 1602 1603 do_check_asi(env, asi, GETPC()); 1604 do_check_align(env, addr, size - 1, GETPC()); 1605 addr = asi_address_mask(env, asi, addr); 1606 1607 switch (asi) { 1608 case ASI_AIUP: /* As if user primary */ 1609 case ASI_AIUS: /* As if user secondary */ 1610 case ASI_AIUPL: /* As if user primary LE */ 1611 case ASI_AIUSL: /* As if user secondary LE */ 1612 case ASI_P: /* Primary */ 1613 case ASI_S: /* Secondary */ 1614 case ASI_PL: /* Primary LE */ 1615 case ASI_SL: /* Secondary LE */ 1616 case ASI_REAL: /* Bypass */ 1617 case ASI_REAL_IO: /* Bypass, non-cacheable */ 1618 case ASI_REAL_L: /* Bypass LE */ 1619 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */ 1620 case ASI_N: /* Nucleus */ 1621 case ASI_NL: /* Nucleus Little Endian (LE) */ 1622 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */ 1623 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */ 1624 case ASI_TWINX_AIUP: /* As if user primary, twinx */ 1625 case ASI_TWINX_AIUS: /* As if user secondary, twinx */ 1626 case ASI_TWINX_REAL: /* Real address, twinx */ 1627 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */ 1628 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */ 1629 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */ 1630 case ASI_TWINX_N: /* Nucleus, twinx */ 1631 case ASI_TWINX_NL: /* Nucleus, twinx, LE */ 1632 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */ 1633 case ASI_TWINX_P: /* Primary, twinx */ 1634 case ASI_TWINX_PL: /* Primary, twinx, LE */ 1635 case ASI_TWINX_S: /* Secondary, twinx */ 1636 case ASI_TWINX_SL: /* Secondary, twinx, LE */ 1637 /* These are always handled inline. */ 1638 g_assert_not_reached(); 1639 /* these ASIs have different functions on UltraSPARC-IIIi 1640 * and UA2005 CPUs. Use the explicit numbers to avoid confusion 1641 */ 1642 case 0x31: 1643 case 0x32: 1644 case 0x39: 1645 case 0x3a: 1646 if (cpu_has_hypervisor(env)) { 1647 /* UA2005 1648 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS0 1649 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS1 1650 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS0 1651 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS1 1652 */ 1653 int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2); 1654 env->dmmu.sun4v_tsb_pointers[idx] = val; 1655 } else { 1656 helper_raise_exception(env, TT_ILL_INSN); 1657 } 1658 break; 1659 case 0x33: 1660 case 0x3b: 1661 if (cpu_has_hypervisor(env)) { 1662 /* UA2005 1663 * ASI_DMMU_CTX_ZERO_CONFIG 1664 * ASI_DMMU_CTX_NONZERO_CONFIG 1665 */ 1666 env->dmmu.sun4v_ctx_config[(asi & 8) >> 3] = val; 1667 } else { 1668 helper_raise_exception(env, TT_ILL_INSN); 1669 } 1670 break; 1671 case 0x35: 1672 case 0x36: 1673 case 0x3d: 1674 case 0x3e: 1675 if (cpu_has_hypervisor(env)) { 1676 /* UA2005 1677 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS0 1678 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS1 1679 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS0 1680 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS1 1681 */ 1682 int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2); 1683 env->immu.sun4v_tsb_pointers[idx] = val; 1684 } else { 1685 helper_raise_exception(env, TT_ILL_INSN); 1686 } 1687 break; 1688 case 0x37: 1689 case 0x3f: 1690 if (cpu_has_hypervisor(env)) { 1691 /* UA2005 1692 * ASI_IMMU_CTX_ZERO_CONFIG 1693 * ASI_IMMU_CTX_NONZERO_CONFIG 1694 */ 1695 env->immu.sun4v_ctx_config[(asi & 8) >> 3] = val; 1696 } else { 1697 helper_raise_exception(env, TT_ILL_INSN); 1698 } 1699 break; 1700 case ASI_UPA_CONFIG: /* UPA config */ 1701 /* XXX */ 1702 return; 1703 case ASI_LSU_CONTROL: /* LSU */ 1704 env->lsu = val & (DMMU_E | IMMU_E); 1705 return; 1706 case ASI_IMMU: /* I-MMU regs */ 1707 { 1708 int reg = (addr >> 3) & 0xf; 1709 uint64_t oldreg; 1710 1711 oldreg = env->immu.mmuregs[reg]; 1712 switch (reg) { 1713 case 0: /* RO */ 1714 return; 1715 case 1: /* Not in I-MMU */ 1716 case 2: 1717 return; 1718 case 3: /* SFSR */ 1719 if ((val & 1) == 0) { 1720 val = 0; /* Clear SFSR */ 1721 } 1722 env->immu.sfsr = val; 1723 break; 1724 case 4: /* RO */ 1725 return; 1726 case 5: /* TSB access */ 1727 DPRINTF_MMU("immu TSB write: 0x%016" PRIx64 " -> 0x%016" 1728 PRIx64 "\n", env->immu.tsb, val); 1729 env->immu.tsb = val; 1730 break; 1731 case 6: /* Tag access */ 1732 env->immu.tag_access = val; 1733 break; 1734 case 7: 1735 case 8: 1736 return; 1737 default: 1738 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1739 break; 1740 } 1741 1742 if (oldreg != env->immu.mmuregs[reg]) { 1743 DPRINTF_MMU("immu change reg[%d]: 0x%016" PRIx64 " -> 0x%016" 1744 PRIx64 "\n", reg, oldreg, env->immuregs[reg]); 1745 } 1746 #ifdef DEBUG_MMU 1747 dump_mmu(env); 1748 #endif 1749 return; 1750 } 1751 case ASI_ITLB_DATA_IN: /* I-MMU data in */ 1752 /* ignore real translation entries */ 1753 if (!(addr & TLB_UST1_IS_REAL_BIT)) { 1754 replace_tlb_1bit_lru(env->itlb, env->immu.tag_access, 1755 val, "immu", env, addr); 1756 } 1757 return; 1758 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */ 1759 { 1760 /* TODO: auto demap */ 1761 1762 unsigned int i = (addr >> 3) & 0x3f; 1763 1764 /* ignore real translation entries */ 1765 if (!(addr & TLB_UST1_IS_REAL_BIT)) { 1766 replace_tlb_entry(&env->itlb[i], env->immu.tag_access, 1767 sun4v_tte_to_sun4u(env, addr, val), env); 1768 } 1769 #ifdef DEBUG_MMU 1770 DPRINTF_MMU("immu data access replaced entry [%i]\n", i); 1771 dump_mmu(env); 1772 #endif 1773 return; 1774 } 1775 case ASI_IMMU_DEMAP: /* I-MMU demap */ 1776 demap_tlb(env->itlb, addr, "immu", env); 1777 return; 1778 case ASI_DMMU: /* D-MMU regs */ 1779 { 1780 int reg = (addr >> 3) & 0xf; 1781 uint64_t oldreg; 1782 1783 oldreg = env->dmmu.mmuregs[reg]; 1784 switch (reg) { 1785 case 0: /* RO */ 1786 case 4: 1787 return; 1788 case 3: /* SFSR */ 1789 if ((val & 1) == 0) { 1790 val = 0; /* Clear SFSR, Fault address */ 1791 env->dmmu.sfar = 0; 1792 } 1793 env->dmmu.sfsr = val; 1794 break; 1795 case 1: /* Primary context */ 1796 env->dmmu.mmu_primary_context = val; 1797 /* can be optimized to only flush MMU_USER_IDX 1798 and MMU_KERNEL_IDX entries */ 1799 tlb_flush(cs); 1800 break; 1801 case 2: /* Secondary context */ 1802 env->dmmu.mmu_secondary_context = val; 1803 /* can be optimized to only flush MMU_USER_SECONDARY_IDX 1804 and MMU_KERNEL_SECONDARY_IDX entries */ 1805 tlb_flush(cs); 1806 break; 1807 case 5: /* TSB access */ 1808 DPRINTF_MMU("dmmu TSB write: 0x%016" PRIx64 " -> 0x%016" 1809 PRIx64 "\n", env->dmmu.tsb, val); 1810 env->dmmu.tsb = val; 1811 break; 1812 case 6: /* Tag access */ 1813 env->dmmu.tag_access = val; 1814 break; 1815 case 7: /* Virtual Watchpoint */ 1816 env->dmmu.virtual_watchpoint = val; 1817 break; 1818 case 8: /* Physical Watchpoint */ 1819 env->dmmu.physical_watchpoint = val; 1820 break; 1821 default: 1822 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1823 break; 1824 } 1825 1826 if (oldreg != env->dmmu.mmuregs[reg]) { 1827 DPRINTF_MMU("dmmu change reg[%d]: 0x%016" PRIx64 " -> 0x%016" 1828 PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]); 1829 } 1830 #ifdef DEBUG_MMU 1831 dump_mmu(env); 1832 #endif 1833 return; 1834 } 1835 case ASI_DTLB_DATA_IN: /* D-MMU data in */ 1836 /* ignore real translation entries */ 1837 if (!(addr & TLB_UST1_IS_REAL_BIT)) { 1838 replace_tlb_1bit_lru(env->dtlb, env->dmmu.tag_access, 1839 val, "dmmu", env, addr); 1840 } 1841 return; 1842 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */ 1843 { 1844 unsigned int i = (addr >> 3) & 0x3f; 1845 1846 /* ignore real translation entries */ 1847 if (!(addr & TLB_UST1_IS_REAL_BIT)) { 1848 replace_tlb_entry(&env->dtlb[i], env->dmmu.tag_access, 1849 sun4v_tte_to_sun4u(env, addr, val), env); 1850 } 1851 #ifdef DEBUG_MMU 1852 DPRINTF_MMU("dmmu data access replaced entry [%i]\n", i); 1853 dump_mmu(env); 1854 #endif 1855 return; 1856 } 1857 case ASI_DMMU_DEMAP: /* D-MMU demap */ 1858 demap_tlb(env->dtlb, addr, "dmmu", env); 1859 return; 1860 case ASI_INTR_RECEIVE: /* Interrupt data receive */ 1861 env->ivec_status = val & 0x20; 1862 return; 1863 case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ 1864 if (unlikely((addr >= 0x20) && (addr < 0x30))) { 1865 /* Hyperprivileged access only */ 1866 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1867 } 1868 /* fall through */ 1869 case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ 1870 { 1871 unsigned int i = (addr >> 3) & 0x7; 1872 env->scratch[i] = val; 1873 return; 1874 } 1875 case ASI_MMU: /* UA2005 Context ID registers */ 1876 { 1877 switch ((addr >> 3) & 0x3) { 1878 case 1: 1879 env->dmmu.mmu_primary_context = val; 1880 env->immu.mmu_primary_context = val; 1881 tlb_flush_by_mmuidx(cs, 1882 (1 << MMU_USER_IDX) | (1 << MMU_KERNEL_IDX)); 1883 break; 1884 case 2: 1885 env->dmmu.mmu_secondary_context = val; 1886 env->immu.mmu_secondary_context = val; 1887 tlb_flush_by_mmuidx(cs, 1888 (1 << MMU_USER_SECONDARY_IDX) | 1889 (1 << MMU_KERNEL_SECONDARY_IDX)); 1890 break; 1891 default: 1892 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1893 } 1894 } 1895 return; 1896 case ASI_QUEUE: /* UA2005 CPU mondo queue */ 1897 case ASI_DCACHE_DATA: /* D-cache data */ 1898 case ASI_DCACHE_TAG: /* D-cache tag access */ 1899 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ 1900 case ASI_AFSR: /* E-cache asynchronous fault status */ 1901 case ASI_AFAR: /* E-cache asynchronous fault address */ 1902 case ASI_EC_TAG_DATA: /* E-cache tag data */ 1903 case ASI_IC_INSTR: /* I-cache instruction access */ 1904 case ASI_IC_TAG: /* I-cache tag access */ 1905 case ASI_IC_PRE_DECODE: /* I-cache predecode */ 1906 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */ 1907 case ASI_EC_W: /* E-cache tag */ 1908 case ASI_EC_R: /* E-cache tag */ 1909 return; 1910 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer, RO */ 1911 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer, RO */ 1912 case ASI_ITLB_TAG_READ: /* I-MMU tag read, RO */ 1913 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer, RO */ 1914 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer, RO */ 1915 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer, RO */ 1916 case ASI_DTLB_TAG_READ: /* D-MMU tag read, RO */ 1917 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */ 1918 case ASI_INTR_R: /* Incoming interrupt vector, RO */ 1919 case ASI_PNF: /* Primary no-fault, RO */ 1920 case ASI_SNF: /* Secondary no-fault, RO */ 1921 case ASI_PNFL: /* Primary no-fault LE, RO */ 1922 case ASI_SNFL: /* Secondary no-fault LE, RO */ 1923 default: 1924 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); 1925 return; 1926 } 1927 } 1928 #endif /* CONFIG_USER_ONLY */ 1929 #endif /* TARGET_SPARC64 */ 1930 1931 #if !defined(CONFIG_USER_ONLY) 1932 1933 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, 1934 vaddr addr, unsigned size, 1935 MMUAccessType access_type, 1936 int mmu_idx, MemTxAttrs attrs, 1937 MemTxResult response, uintptr_t retaddr) 1938 { 1939 bool is_write = access_type == MMU_DATA_STORE; 1940 bool is_exec = access_type == MMU_INST_FETCH; 1941 bool is_asi = false; 1942 1943 sparc_raise_mmu_fault(cs, physaddr, is_write, is_exec, 1944 is_asi, size, retaddr); 1945 } 1946 #endif 1947