1 #ifndef SPARC_CPU_H 2 #define SPARC_CPU_H 3 4 #include "qemu/bswap.h" 5 #include "cpu-qom.h" 6 #include "exec/cpu-defs.h" 7 #include "qemu/cpu-float.h" 8 9 #if !defined(TARGET_SPARC64) 10 #define TARGET_DPREGS 16 11 #else 12 #define TARGET_DPREGS 32 13 #endif 14 15 /*#define EXCP_INTERRUPT 0x100*/ 16 17 /* Windowed register indexes. */ 18 enum { 19 WREG_O0, 20 WREG_O1, 21 WREG_O2, 22 WREG_O3, 23 WREG_O4, 24 WREG_O5, 25 WREG_O6, 26 WREG_O7, 27 28 WREG_L0, 29 WREG_L1, 30 WREG_L2, 31 WREG_L3, 32 WREG_L4, 33 WREG_L5, 34 WREG_L6, 35 WREG_L7, 36 37 WREG_I0, 38 WREG_I1, 39 WREG_I2, 40 WREG_I3, 41 WREG_I4, 42 WREG_I5, 43 WREG_I6, 44 WREG_I7, 45 46 WREG_SP = WREG_O6, 47 WREG_FP = WREG_I6, 48 }; 49 50 /* trap definitions */ 51 #ifndef TARGET_SPARC64 52 #define TT_TFAULT 0x01 53 #define TT_ILL_INSN 0x02 54 #define TT_PRIV_INSN 0x03 55 #define TT_NFPU_INSN 0x04 56 #define TT_WIN_OVF 0x05 57 #define TT_WIN_UNF 0x06 58 #define TT_UNALIGNED 0x07 59 #define TT_FP_EXCP 0x08 60 #define TT_DFAULT 0x09 61 #define TT_TOVF 0x0a 62 #define TT_EXTINT 0x10 63 #define TT_CODE_ACCESS 0x21 64 #define TT_UNIMP_FLUSH 0x25 65 #define TT_DATA_ACCESS 0x29 66 #define TT_DIV_ZERO 0x2a 67 #define TT_NCP_INSN 0x24 68 #define TT_TRAP 0x80 69 #else 70 #define TT_POWER_ON_RESET 0x01 71 #define TT_TFAULT 0x08 72 #define TT_CODE_ACCESS 0x0a 73 #define TT_ILL_INSN 0x10 74 #define TT_UNIMP_FLUSH TT_ILL_INSN 75 #define TT_PRIV_INSN 0x11 76 #define TT_NFPU_INSN 0x20 77 #define TT_FP_EXCP 0x21 78 #define TT_TOVF 0x23 79 #define TT_CLRWIN 0x24 80 #define TT_DIV_ZERO 0x28 81 #define TT_DFAULT 0x30 82 #define TT_DATA_ACCESS 0x32 83 #define TT_UNALIGNED 0x34 84 #define TT_PRIV_ACT 0x37 85 #define TT_INSN_REAL_TRANSLATION_MISS 0x3e 86 #define TT_DATA_REAL_TRANSLATION_MISS 0x3f 87 #define TT_EXTINT 0x40 88 #define TT_IVEC 0x60 89 #define TT_TMISS 0x64 90 #define TT_DMISS 0x68 91 #define TT_DPROT 0x6c 92 #define TT_SPILL 0x80 93 #define TT_FILL 0xc0 94 #define TT_WOTHER (1 << 5) 95 #define TT_TRAP 0x100 96 #define TT_HTRAP 0x180 97 #endif 98 99 #define PSR_NEG_SHIFT 23 100 #define PSR_NEG (1 << PSR_NEG_SHIFT) 101 #define PSR_ZERO_SHIFT 22 102 #define PSR_ZERO (1 << PSR_ZERO_SHIFT) 103 #define PSR_OVF_SHIFT 21 104 #define PSR_OVF (1 << PSR_OVF_SHIFT) 105 #define PSR_CARRY_SHIFT 20 106 #define PSR_CARRY (1 << PSR_CARRY_SHIFT) 107 #define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY) 108 #if !defined(TARGET_SPARC64) 109 #define PSR_EF (1<<12) 110 #define PSR_PIL 0xf00 111 #define PSR_S (1<<7) 112 #define PSR_PS (1<<6) 113 #define PSR_ET (1<<5) 114 #define PSR_CWP 0x1f 115 #endif 116 117 #define CC_SRC (env->cc_src) 118 #define CC_SRC2 (env->cc_src2) 119 #define CC_DST (env->cc_dst) 120 #define CC_OP (env->cc_op) 121 122 /* Even though lazy evaluation of CPU condition codes tends to be less 123 * important on RISC systems where condition codes are only updated 124 * when explicitly requested, SPARC uses it to update 32-bit and 64-bit 125 * condition codes. 126 */ 127 enum { 128 CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ 129 CC_OP_FLAGS, /* all cc are back in status register */ 130 CC_OP_DIV, /* modify N, Z and V, C = 0*/ 131 CC_OP_ADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 132 CC_OP_ADDX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 133 CC_OP_TADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 134 CC_OP_TADDTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 135 CC_OP_SUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 136 CC_OP_SUBX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 137 CC_OP_TSUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 138 CC_OP_TSUBTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 139 CC_OP_LOGIC, /* modify N and Z, C = V = 0, CC_DST = res */ 140 CC_OP_NB, 141 }; 142 143 /* Trap base register */ 144 #define TBR_BASE_MASK 0xfffff000 145 146 #if defined(TARGET_SPARC64) 147 #define PS_TCT (1<<12) /* UA2007, impl.dep. trap on control transfer */ 148 #define PS_IG (1<<11) /* v9, zero on UA2007 */ 149 #define PS_MG (1<<10) /* v9, zero on UA2007 */ 150 #define PS_CLE (1<<9) /* UA2007 */ 151 #define PS_TLE (1<<8) /* UA2007 */ 152 #define PS_RMO (1<<7) 153 #define PS_RED (1<<5) /* v9, zero on UA2007 */ 154 #define PS_PEF (1<<4) /* enable fpu */ 155 #define PS_AM (1<<3) /* address mask */ 156 #define PS_PRIV (1<<2) 157 #define PS_IE (1<<1) 158 #define PS_AG (1<<0) /* v9, zero on UA2007 */ 159 160 #define FPRS_DL (1 << 0) 161 #define FPRS_DU (1 << 1) 162 #define FPRS_FEF (1 << 2) 163 164 #define HS_PRIV (1<<2) 165 #endif 166 167 /* Fcc */ 168 #define FSR_RD1 (1ULL << 31) 169 #define FSR_RD0 (1ULL << 30) 170 #define FSR_RD_MASK (FSR_RD1 | FSR_RD0) 171 #define FSR_RD_NEAREST 0 172 #define FSR_RD_ZERO FSR_RD0 173 #define FSR_RD_POS FSR_RD1 174 #define FSR_RD_NEG (FSR_RD1 | FSR_RD0) 175 176 #define FSR_NVM (1ULL << 27) 177 #define FSR_OFM (1ULL << 26) 178 #define FSR_UFM (1ULL << 25) 179 #define FSR_DZM (1ULL << 24) 180 #define FSR_NXM (1ULL << 23) 181 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM) 182 183 #define FSR_NVA (1ULL << 9) 184 #define FSR_OFA (1ULL << 8) 185 #define FSR_UFA (1ULL << 7) 186 #define FSR_DZA (1ULL << 6) 187 #define FSR_NXA (1ULL << 5) 188 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA) 189 190 #define FSR_NVC (1ULL << 4) 191 #define FSR_OFC (1ULL << 3) 192 #define FSR_UFC (1ULL << 2) 193 #define FSR_DZC (1ULL << 1) 194 #define FSR_NXC (1ULL << 0) 195 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC) 196 197 #define FSR_FTT2 (1ULL << 16) 198 #define FSR_FTT1 (1ULL << 15) 199 #define FSR_FTT0 (1ULL << 14) 200 //gcc warns about constant overflow for ~FSR_FTT_MASK 201 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0) 202 #ifdef TARGET_SPARC64 203 #define FSR_FTT_NMASK 0xfffffffffffe3fffULL 204 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL 205 #define FSR_LDFSR_OLDMASK 0x0000003f000fc000ULL 206 #define FSR_LDXFSR_MASK 0x0000003fcfc00fffULL 207 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL 208 #else 209 #define FSR_FTT_NMASK 0xfffe3fffULL 210 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL 211 #define FSR_LDFSR_OLDMASK 0x000fc000ULL 212 #endif 213 #define FSR_LDFSR_MASK 0xcfc00fffULL 214 #define FSR_FTT_IEEE_EXCP (1ULL << 14) 215 #define FSR_FTT_UNIMPFPOP (3ULL << 14) 216 #define FSR_FTT_SEQ_ERROR (4ULL << 14) 217 #define FSR_FTT_INVAL_FPR (6ULL << 14) 218 219 #define FSR_FCC1_SHIFT 11 220 #define FSR_FCC1 (1ULL << FSR_FCC1_SHIFT) 221 #define FSR_FCC0_SHIFT 10 222 #define FSR_FCC0 (1ULL << FSR_FCC0_SHIFT) 223 224 /* MMU */ 225 #define MMU_E (1<<0) 226 #define MMU_NF (1<<1) 227 228 #define PTE_ENTRYTYPE_MASK 3 229 #define PTE_ACCESS_MASK 0x1c 230 #define PTE_ACCESS_SHIFT 2 231 #define PTE_PPN_SHIFT 7 232 #define PTE_ADDR_MASK 0xffffff00 233 234 #define PG_ACCESSED_BIT 5 235 #define PG_MODIFIED_BIT 6 236 #define PG_CACHE_BIT 7 237 238 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT) 239 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT) 240 #define PG_CACHE_MASK (1 << PG_CACHE_BIT) 241 242 /* 3 <= NWINDOWS <= 32. */ 243 #define MIN_NWINDOWS 3 244 #define MAX_NWINDOWS 32 245 246 #ifdef TARGET_SPARC64 247 typedef struct trap_state { 248 uint64_t tpc; 249 uint64_t tnpc; 250 uint64_t tstate; 251 uint32_t tt; 252 } trap_state; 253 #endif 254 #define TARGET_INSN_START_EXTRA_WORDS 1 255 256 struct sparc_def_t { 257 const char *name; 258 target_ulong iu_version; 259 uint32_t fpu_version; 260 uint32_t mmu_version; 261 uint32_t mmu_bm; 262 uint32_t mmu_ctpr_mask; 263 uint32_t mmu_cxr_mask; 264 uint32_t mmu_sfsr_mask; 265 uint32_t mmu_trcr_mask; 266 uint32_t mxcc_version; 267 uint32_t features; 268 uint32_t nwindows; 269 uint32_t maxtl; 270 }; 271 272 #define CPU_FEATURE_FLOAT (1 << 0) 273 #define CPU_FEATURE_FLOAT128 (1 << 1) 274 #define CPU_FEATURE_SWAP (1 << 2) 275 #define CPU_FEATURE_MUL (1 << 3) 276 #define CPU_FEATURE_DIV (1 << 4) 277 #define CPU_FEATURE_FLUSH (1 << 5) 278 #define CPU_FEATURE_FSQRT (1 << 6) 279 #define CPU_FEATURE_FMUL (1 << 7) 280 #define CPU_FEATURE_VIS1 (1 << 8) 281 #define CPU_FEATURE_VIS2 (1 << 9) 282 #define CPU_FEATURE_FSMULD (1 << 10) 283 #define CPU_FEATURE_HYPV (1 << 11) 284 #define CPU_FEATURE_CMT (1 << 12) 285 #define CPU_FEATURE_GL (1 << 13) 286 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ 287 #define CPU_FEATURE_ASR17 (1 << 15) 288 #define CPU_FEATURE_CACHE_CTRL (1 << 16) 289 #define CPU_FEATURE_POWERDOWN (1 << 17) 290 #define CPU_FEATURE_CASA (1 << 18) 291 292 #ifndef TARGET_SPARC64 293 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 294 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 295 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 296 CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD) 297 #else 298 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 299 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 300 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 301 CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 | \ 302 CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \ 303 CPU_FEATURE_CASA) 304 enum { 305 mmu_us_12, // Ultrasparc < III (64 entry TLB) 306 mmu_us_3, // Ultrasparc III (512 entry TLB) 307 mmu_us_4, // Ultrasparc IV (several TLBs, 32 and 256MB pages) 308 mmu_sun4v, // T1, T2 309 }; 310 #endif 311 312 #define TTE_VALID_BIT (1ULL << 63) 313 #define TTE_NFO_BIT (1ULL << 60) 314 #define TTE_IE_BIT (1ULL << 59) 315 #define TTE_USED_BIT (1ULL << 41) 316 #define TTE_LOCKED_BIT (1ULL << 6) 317 #define TTE_SIDEEFFECT_BIT (1ULL << 3) 318 #define TTE_PRIV_BIT (1ULL << 2) 319 #define TTE_W_OK_BIT (1ULL << 1) 320 #define TTE_GLOBAL_BIT (1ULL << 0) 321 322 #define TTE_NFO_BIT_UA2005 (1ULL << 62) 323 #define TTE_USED_BIT_UA2005 (1ULL << 47) 324 #define TTE_LOCKED_BIT_UA2005 (1ULL << 61) 325 #define TTE_SIDEEFFECT_BIT_UA2005 (1ULL << 11) 326 #define TTE_PRIV_BIT_UA2005 (1ULL << 8) 327 #define TTE_W_OK_BIT_UA2005 (1ULL << 6) 328 329 #define TTE_IS_VALID(tte) ((tte) & TTE_VALID_BIT) 330 #define TTE_IS_NFO(tte) ((tte) & TTE_NFO_BIT) 331 #define TTE_IS_IE(tte) ((tte) & TTE_IE_BIT) 332 #define TTE_IS_USED(tte) ((tte) & TTE_USED_BIT) 333 #define TTE_IS_LOCKED(tte) ((tte) & TTE_LOCKED_BIT) 334 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT) 335 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 336 #define TTE_IS_PRIV(tte) ((tte) & TTE_PRIV_BIT) 337 #define TTE_IS_W_OK(tte) ((tte) & TTE_W_OK_BIT) 338 339 #define TTE_IS_NFO_UA2005(tte) ((tte) & TTE_NFO_BIT_UA2005) 340 #define TTE_IS_USED_UA2005(tte) ((tte) & TTE_USED_BIT_UA2005) 341 #define TTE_IS_LOCKED_UA2005(tte) ((tte) & TTE_LOCKED_BIT_UA2005) 342 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 343 #define TTE_IS_PRIV_UA2005(tte) ((tte) & TTE_PRIV_BIT_UA2005) 344 #define TTE_IS_W_OK_UA2005(tte) ((tte) & TTE_W_OK_BIT_UA2005) 345 346 #define TTE_IS_GLOBAL(tte) ((tte) & TTE_GLOBAL_BIT) 347 348 #define TTE_SET_USED(tte) ((tte) |= TTE_USED_BIT) 349 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT) 350 351 #define TTE_PGSIZE(tte) (((tte) >> 61) & 3ULL) 352 #define TTE_PGSIZE_UA2005(tte) ((tte) & 7ULL) 353 #define TTE_PA(tte) ((tte) & 0x1ffffffe000ULL) 354 355 /* UltraSPARC T1 specific */ 356 #define TLB_UST1_IS_REAL_BIT (1ULL << 9) /* Real translation entry */ 357 #define TLB_UST1_IS_SUN4V_BIT (1ULL << 10) /* sun4u/sun4v TTE format switch */ 358 359 #define SFSR_NF_BIT (1ULL << 24) /* JPS1 NoFault */ 360 #define SFSR_TM_BIT (1ULL << 15) /* JPS1 TLB Miss */ 361 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13) /* USIIi VA out of range (IMMU) */ 362 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12) /* USIIi VA out of range (DMMU) */ 363 #define SFSR_FT_NFO_BIT (1ULL << 11) /* NFO page access */ 364 #define SFSR_FT_ILL_BIT (1ULL << 10) /* illegal LDA/STA ASI */ 365 #define SFSR_FT_ATOMIC_BIT (1ULL << 9) /* atomic op on noncacheable area */ 366 #define SFSR_FT_NF_E_BIT (1ULL << 8) /* NF access on side effect area */ 367 #define SFSR_FT_PRIV_BIT (1ULL << 7) /* privilege violation */ 368 #define SFSR_PR_BIT (1ULL << 3) /* privilege mode */ 369 #define SFSR_WRITE_BIT (1ULL << 2) /* write access mode */ 370 #define SFSR_OW_BIT (1ULL << 1) /* status overwritten */ 371 #define SFSR_VALID_BIT (1ULL << 0) /* status valid */ 372 373 #define SFSR_ASI_SHIFT 16 /* 23:16 ASI value */ 374 #define SFSR_ASI_MASK (0xffULL << SFSR_ASI_SHIFT) 375 #define SFSR_CT_PRIMARY (0ULL << 4) /* 5:4 context type */ 376 #define SFSR_CT_SECONDARY (1ULL << 4) 377 #define SFSR_CT_NUCLEUS (2ULL << 4) 378 #define SFSR_CT_NOTRANS (3ULL << 4) 379 #define SFSR_CT_MASK (3ULL << 4) 380 381 /* Leon3 cache control */ 382 383 /* Cache control: emulate the behavior of cache control registers but without 384 any effect on the emulated */ 385 386 #define CACHE_STATE_MASK 0x3 387 #define CACHE_DISABLED 0x0 388 #define CACHE_FROZEN 0x1 389 #define CACHE_ENABLED 0x3 390 391 /* Cache Control register fields */ 392 393 #define CACHE_CTRL_IF (1 << 4) /* Instruction Cache Freeze on Interrupt */ 394 #define CACHE_CTRL_DF (1 << 5) /* Data Cache Freeze on Interrupt */ 395 #define CACHE_CTRL_DP (1 << 14) /* Data cache flush pending */ 396 #define CACHE_CTRL_IP (1 << 15) /* Instruction cache flush pending */ 397 #define CACHE_CTRL_IB (1 << 16) /* Instruction burst fetch */ 398 #define CACHE_CTRL_FI (1 << 21) /* Flush Instruction cache (Write only) */ 399 #define CACHE_CTRL_FD (1 << 22) /* Flush Data cache (Write only) */ 400 #define CACHE_CTRL_DS (1 << 23) /* Data cache snoop enable */ 401 402 #define CONVERT_BIT(X, SRC, DST) \ 403 (SRC > DST ? (X) / (SRC / DST) & (DST) : ((X) & SRC) * (DST / SRC)) 404 405 typedef struct SparcTLBEntry { 406 uint64_t tag; 407 uint64_t tte; 408 } SparcTLBEntry; 409 410 struct CPUTimer 411 { 412 const char *name; 413 uint32_t frequency; 414 uint32_t disabled; 415 uint64_t disabled_mask; 416 uint32_t npt; 417 uint64_t npt_mask; 418 int64_t clock_offset; 419 QEMUTimer *qtimer; 420 }; 421 422 typedef struct CPUTimer CPUTimer; 423 424 typedef struct CPUArchState CPUSPARCState; 425 #if defined(TARGET_SPARC64) 426 typedef union { 427 uint64_t mmuregs[16]; 428 struct { 429 uint64_t tsb_tag_target; 430 uint64_t mmu_primary_context; 431 uint64_t mmu_secondary_context; 432 uint64_t sfsr; 433 uint64_t sfar; 434 uint64_t tsb; 435 uint64_t tag_access; 436 uint64_t virtual_watchpoint; 437 uint64_t physical_watchpoint; 438 uint64_t sun4v_ctx_config[2]; 439 uint64_t sun4v_tsb_pointers[4]; 440 }; 441 } SparcV9MMU; 442 #endif 443 struct CPUArchState { 444 target_ulong gregs[8]; /* general registers */ 445 target_ulong *regwptr; /* pointer to current register window */ 446 target_ulong pc; /* program counter */ 447 target_ulong npc; /* next program counter */ 448 target_ulong y; /* multiply/divide register */ 449 450 /* emulator internal flags handling */ 451 target_ulong cc_src, cc_src2; 452 target_ulong cc_dst; 453 uint32_t cc_op; 454 455 target_ulong cond; /* conditional branch result (XXX: save it in a 456 temporary register when possible) */ 457 458 uint32_t psr; /* processor state register */ 459 target_ulong fsr; /* FPU state register */ 460 CPU_DoubleU fpr[TARGET_DPREGS]; /* floating point registers */ 461 uint32_t cwp; /* index of current register window (extracted 462 from PSR) */ 463 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32) 464 uint32_t wim; /* window invalid mask */ 465 #endif 466 target_ulong tbr; /* trap base register */ 467 #if !defined(TARGET_SPARC64) 468 int psrs; /* supervisor mode (extracted from PSR) */ 469 int psrps; /* previous supervisor mode */ 470 int psret; /* enable traps */ 471 #endif 472 uint32_t psrpil; /* interrupt blocking level */ 473 uint32_t pil_in; /* incoming interrupt level bitmap */ 474 #if !defined(TARGET_SPARC64) 475 int psref; /* enable fpu */ 476 #endif 477 int interrupt_index; 478 /* NOTE: we allow 8 more registers to handle wrapping */ 479 target_ulong regbase[MAX_NWINDOWS * 16 + 8]; 480 481 /* Fields up to this point are cleared by a CPU reset */ 482 struct {} end_reset_fields; 483 484 /* Fields from here on are preserved across CPU reset. */ 485 target_ulong version; 486 uint32_t nwindows; 487 488 /* MMU regs */ 489 #if defined(TARGET_SPARC64) 490 uint64_t lsu; 491 #define DMMU_E 0x8 492 #define IMMU_E 0x4 493 SparcV9MMU immu; 494 SparcV9MMU dmmu; 495 SparcTLBEntry itlb[64]; 496 SparcTLBEntry dtlb[64]; 497 uint32_t mmu_version; 498 #else 499 uint32_t mmuregs[32]; 500 uint64_t mxccdata[4]; 501 uint64_t mxccregs[8]; 502 uint32_t mmubpctrv, mmubpctrc, mmubpctrs; 503 uint64_t mmubpaction; 504 uint64_t mmubpregs[4]; 505 uint64_t prom_addr; 506 #endif 507 /* temporary float registers */ 508 float128 qt0, qt1; 509 float_status fp_status; 510 #if defined(TARGET_SPARC64) 511 #define MAXTL_MAX 8 512 #define MAXTL_MASK (MAXTL_MAX - 1) 513 trap_state ts[MAXTL_MAX]; 514 uint32_t xcc; /* Extended integer condition codes */ 515 uint32_t asi; 516 uint32_t pstate; 517 uint32_t tl; 518 uint32_t maxtl; 519 uint32_t cansave, canrestore, otherwin, wstate, cleanwin; 520 uint64_t agregs[8]; /* alternate general registers */ 521 uint64_t bgregs[8]; /* backup for normal global registers */ 522 uint64_t igregs[8]; /* interrupt general registers */ 523 uint64_t mgregs[8]; /* mmu general registers */ 524 uint64_t glregs[8 * MAXTL_MAX]; 525 uint64_t fprs; 526 uint64_t tick_cmpr, stick_cmpr; 527 CPUTimer *tick, *stick; 528 #define TICK_NPT_MASK 0x8000000000000000ULL 529 #define TICK_INT_DIS 0x8000000000000000ULL 530 uint64_t gsr; 531 uint32_t gl; // UA2005 532 /* UA 2005 hyperprivileged registers */ 533 uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr; 534 uint64_t scratch[8]; 535 CPUTimer *hstick; // UA 2005 536 /* Interrupt vector registers */ 537 uint64_t ivec_status; 538 uint64_t ivec_data[3]; 539 uint32_t softint; 540 #define SOFTINT_TIMER 1 541 #define SOFTINT_STIMER (1 << 16) 542 #define SOFTINT_INTRMASK (0xFFFE) 543 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER) 544 #endif 545 sparc_def_t def; 546 547 void *irq_manager; 548 void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno); 549 550 /* Leon3 cache control */ 551 uint32_t cache_control; 552 }; 553 554 /** 555 * SPARCCPU: 556 * @env: #CPUSPARCState 557 * 558 * A SPARC CPU. 559 */ 560 struct ArchCPU { 561 /*< private >*/ 562 CPUState parent_obj; 563 /*< public >*/ 564 565 CPUNegativeOffsetState neg; 566 CPUSPARCState env; 567 }; 568 569 570 #ifndef CONFIG_USER_ONLY 571 extern const VMStateDescription vmstate_sparc_cpu; 572 #endif 573 574 void sparc_cpu_do_interrupt(CPUState *cpu); 575 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); 576 int sparc_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); 577 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 578 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, 579 MMUAccessType access_type, 580 int mmu_idx, 581 uintptr_t retaddr); 582 void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN; 583 584 #ifndef NO_CPU_IO_DEFS 585 /* cpu_init.c */ 586 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); 587 void sparc_cpu_list(void); 588 /* mmu_helper.c */ 589 bool sparc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, 590 MMUAccessType access_type, int mmu_idx, 591 bool probe, uintptr_t retaddr); 592 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev); 593 void dump_mmu(CPUSPARCState *env); 594 595 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) 596 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr, 597 uint8_t *buf, int len, bool is_write); 598 #endif 599 600 601 /* translate.c */ 602 void sparc_tcg_init(void); 603 604 /* cpu-exec.c */ 605 606 /* win_helper.c */ 607 target_ulong cpu_get_psr(CPUSPARCState *env1); 608 void cpu_put_psr(CPUSPARCState *env1, target_ulong val); 609 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val); 610 #ifdef TARGET_SPARC64 611 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate); 612 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl); 613 #endif 614 int cpu_cwp_inc(CPUSPARCState *env1, int cwp); 615 int cpu_cwp_dec(CPUSPARCState *env1, int cwp); 616 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp); 617 618 /* sun4m.c, sun4u.c */ 619 void cpu_check_irqs(CPUSPARCState *env); 620 621 #if defined (TARGET_SPARC64) 622 623 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask) 624 { 625 return (x & mask) == (y & mask); 626 } 627 628 #define MMU_CONTEXT_BITS 13 629 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1) 630 631 static inline int tlb_compare_context(const SparcTLBEntry *tlb, 632 uint64_t context) 633 { 634 return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK); 635 } 636 637 #endif 638 #endif 639 640 /* cpu-exec.c */ 641 #if !defined(CONFIG_USER_ONLY) 642 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, 643 vaddr addr, unsigned size, 644 MMUAccessType access_type, 645 int mmu_idx, MemTxAttrs attrs, 646 MemTxResult response, uintptr_t retaddr); 647 #if defined(TARGET_SPARC64) 648 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr, 649 int mmu_idx); 650 #endif 651 #endif 652 653 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU 654 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX 655 #define CPU_RESOLVING_TYPE TYPE_SPARC_CPU 656 657 #define cpu_list sparc_cpu_list 658 659 /* MMU modes definitions */ 660 #if defined (TARGET_SPARC64) 661 #define MMU_USER_IDX 0 662 #define MMU_USER_SECONDARY_IDX 1 663 #define MMU_KERNEL_IDX 2 664 #define MMU_KERNEL_SECONDARY_IDX 3 665 #define MMU_NUCLEUS_IDX 4 666 #define MMU_PHYS_IDX 5 667 #else 668 #define MMU_USER_IDX 0 669 #define MMU_KERNEL_IDX 1 670 #define MMU_PHYS_IDX 2 671 #endif 672 673 #if defined (TARGET_SPARC64) 674 static inline int cpu_has_hypervisor(CPUSPARCState *env1) 675 { 676 return env1->def.features & CPU_FEATURE_HYPV; 677 } 678 679 static inline int cpu_hypervisor_mode(CPUSPARCState *env1) 680 { 681 return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV); 682 } 683 684 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 685 { 686 return env1->pstate & PS_PRIV; 687 } 688 #else 689 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 690 { 691 return env1->psrs; 692 } 693 #endif 694 695 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch) 696 { 697 #if defined(CONFIG_USER_ONLY) 698 return MMU_USER_IDX; 699 #elif !defined(TARGET_SPARC64) 700 if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */ 701 return MMU_PHYS_IDX; 702 } else { 703 return env->psrs; 704 } 705 #else 706 /* IMMU or DMMU disabled. */ 707 if (ifetch 708 ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0 709 : (env->lsu & DMMU_E) == 0) { 710 return MMU_PHYS_IDX; 711 } else if (cpu_hypervisor_mode(env)) { 712 return MMU_PHYS_IDX; 713 } else if (env->tl > 0) { 714 return MMU_NUCLEUS_IDX; 715 } else if (cpu_supervisor_mode(env)) { 716 return MMU_KERNEL_IDX; 717 } else { 718 return MMU_USER_IDX; 719 } 720 #endif 721 } 722 723 static inline int cpu_interrupts_enabled(CPUSPARCState *env1) 724 { 725 #if !defined (TARGET_SPARC64) 726 if (env1->psret != 0) 727 return 1; 728 #else 729 if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) { 730 return 1; 731 } 732 #endif 733 734 return 0; 735 } 736 737 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil) 738 { 739 #if !defined(TARGET_SPARC64) 740 /* level 15 is non-maskable on sparc v8 */ 741 return pil == 15 || pil > env1->psrpil; 742 #else 743 return pil > env1->psrpil; 744 #endif 745 } 746 747 #include "exec/cpu-all.h" 748 749 #ifdef TARGET_SPARC64 750 /* sun4u.c */ 751 void cpu_tick_set_count(CPUTimer *timer, uint64_t count); 752 uint64_t cpu_tick_get_count(CPUTimer *timer); 753 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit); 754 trap_state* cpu_tsptr(CPUSPARCState* env); 755 #endif 756 757 #define TB_FLAG_MMU_MASK 7 758 #define TB_FLAG_FPU_ENABLED (1 << 4) 759 #define TB_FLAG_AM_ENABLED (1 << 5) 760 #define TB_FLAG_SUPER (1 << 6) 761 #define TB_FLAG_HYPER (1 << 7) 762 #define TB_FLAG_ASI_SHIFT 24 763 764 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc, 765 target_ulong *cs_base, uint32_t *pflags) 766 { 767 uint32_t flags; 768 *pc = env->pc; 769 *cs_base = env->npc; 770 flags = cpu_mmu_index(env, false); 771 #ifndef CONFIG_USER_ONLY 772 if (cpu_supervisor_mode(env)) { 773 flags |= TB_FLAG_SUPER; 774 } 775 #endif 776 #ifdef TARGET_SPARC64 777 #ifndef CONFIG_USER_ONLY 778 if (cpu_hypervisor_mode(env)) { 779 flags |= TB_FLAG_HYPER; 780 } 781 #endif 782 if (env->pstate & PS_AM) { 783 flags |= TB_FLAG_AM_ENABLED; 784 } 785 if ((env->def.features & CPU_FEATURE_FLOAT) 786 && (env->pstate & PS_PEF) 787 && (env->fprs & FPRS_FEF)) { 788 flags |= TB_FLAG_FPU_ENABLED; 789 } 790 flags |= env->asi << TB_FLAG_ASI_SHIFT; 791 #else 792 if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) { 793 flags |= TB_FLAG_FPU_ENABLED; 794 } 795 #endif 796 *pflags = flags; 797 } 798 799 static inline bool tb_fpu_enabled(int tb_flags) 800 { 801 #if defined(CONFIG_USER_ONLY) 802 return true; 803 #else 804 return tb_flags & TB_FLAG_FPU_ENABLED; 805 #endif 806 } 807 808 static inline bool tb_am_enabled(int tb_flags) 809 { 810 #ifndef TARGET_SPARC64 811 return false; 812 #else 813 return tb_flags & TB_FLAG_AM_ENABLED; 814 #endif 815 } 816 817 #ifdef TARGET_SPARC64 818 /* win_helper.c */ 819 target_ulong cpu_get_ccr(CPUSPARCState *env1); 820 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val); 821 target_ulong cpu_get_cwp64(CPUSPARCState *env1); 822 void cpu_put_cwp64(CPUSPARCState *env1, int cwp); 823 824 static inline uint64_t sparc64_tstate(CPUSPARCState *env) 825 { 826 uint64_t tstate = (cpu_get_ccr(env) << 32) | 827 ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) | 828 cpu_get_cwp64(env); 829 830 if (env->def.features & CPU_FEATURE_GL) { 831 tstate |= (env->gl & 7ULL) << 40; 832 } 833 return tstate; 834 } 835 #endif 836 837 #endif 838