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 8 #if !defined(TARGET_SPARC64) 9 #define TARGET_DPREGS 16 10 #else 11 #define TARGET_DPREGS 32 12 #endif 13 14 /*#define EXCP_INTERRUPT 0x100*/ 15 16 /* Windowed register indexes. */ 17 enum { 18 WREG_O0, 19 WREG_O1, 20 WREG_O2, 21 WREG_O3, 22 WREG_O4, 23 WREG_O5, 24 WREG_O6, 25 WREG_O7, 26 27 WREG_L0, 28 WREG_L1, 29 WREG_L2, 30 WREG_L3, 31 WREG_L4, 32 WREG_L5, 33 WREG_L6, 34 WREG_L7, 35 36 WREG_I0, 37 WREG_I1, 38 WREG_I2, 39 WREG_I3, 40 WREG_I4, 41 WREG_I5, 42 WREG_I6, 43 WREG_I7, 44 45 WREG_SP = WREG_O6, 46 WREG_FP = WREG_I6, 47 }; 48 49 /* trap definitions */ 50 #ifndef TARGET_SPARC64 51 #define TT_TFAULT 0x01 52 #define TT_ILL_INSN 0x02 53 #define TT_PRIV_INSN 0x03 54 #define TT_NFPU_INSN 0x04 55 #define TT_WIN_OVF 0x05 56 #define TT_WIN_UNF 0x06 57 #define TT_UNALIGNED 0x07 58 #define TT_FP_EXCP 0x08 59 #define TT_DFAULT 0x09 60 #define TT_TOVF 0x0a 61 #define TT_EXTINT 0x10 62 #define TT_CODE_ACCESS 0x21 63 #define TT_UNIMP_FLUSH 0x25 64 #define TT_DATA_ACCESS 0x29 65 #define TT_DIV_ZERO 0x2a 66 #define TT_NCP_INSN 0x24 67 #define TT_TRAP 0x80 68 #else 69 #define TT_POWER_ON_RESET 0x01 70 #define TT_TFAULT 0x08 71 #define TT_CODE_ACCESS 0x0a 72 #define TT_ILL_INSN 0x10 73 #define TT_UNIMP_FLUSH TT_ILL_INSN 74 #define TT_PRIV_INSN 0x11 75 #define TT_NFPU_INSN 0x20 76 #define TT_FP_EXCP 0x21 77 #define TT_TOVF 0x23 78 #define TT_CLRWIN 0x24 79 #define TT_DIV_ZERO 0x28 80 #define TT_DFAULT 0x30 81 #define TT_DATA_ACCESS 0x32 82 #define TT_UNALIGNED 0x34 83 #define TT_PRIV_ACT 0x37 84 #define TT_INSN_REAL_TRANSLATION_MISS 0x3e 85 #define TT_DATA_REAL_TRANSLATION_MISS 0x3f 86 #define TT_EXTINT 0x40 87 #define TT_IVEC 0x60 88 #define TT_TMISS 0x64 89 #define TT_DMISS 0x68 90 #define TT_DPROT 0x6c 91 #define TT_SPILL 0x80 92 #define TT_FILL 0xc0 93 #define TT_WOTHER (1 << 5) 94 #define TT_TRAP 0x100 95 #define TT_HTRAP 0x180 96 #endif 97 98 #define PSR_NEG_SHIFT 23 99 #define PSR_NEG (1 << PSR_NEG_SHIFT) 100 #define PSR_ZERO_SHIFT 22 101 #define PSR_ZERO (1 << PSR_ZERO_SHIFT) 102 #define PSR_OVF_SHIFT 21 103 #define PSR_OVF (1 << PSR_OVF_SHIFT) 104 #define PSR_CARRY_SHIFT 20 105 #define PSR_CARRY (1 << PSR_CARRY_SHIFT) 106 #define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY) 107 #if !defined(TARGET_SPARC64) 108 #define PSR_EF (1<<12) 109 #define PSR_PIL 0xf00 110 #define PSR_S (1<<7) 111 #define PSR_PS (1<<6) 112 #define PSR_ET (1<<5) 113 #define PSR_CWP 0x1f 114 #endif 115 116 #define CC_SRC (env->cc_src) 117 #define CC_SRC2 (env->cc_src2) 118 #define CC_DST (env->cc_dst) 119 #define CC_OP (env->cc_op) 120 121 /* Even though lazy evaluation of CPU condition codes tends to be less 122 * important on RISC systems where condition codes are only updated 123 * when explicitly requested, SPARC uses it to update 32-bit and 64-bit 124 * condition codes. 125 */ 126 enum { 127 CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ 128 CC_OP_FLAGS, /* all cc are back in status register */ 129 CC_OP_DIV, /* modify N, Z and V, C = 0*/ 130 CC_OP_ADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 131 CC_OP_ADDX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 132 CC_OP_TADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 133 CC_OP_TADDTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 134 CC_OP_SUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 135 CC_OP_SUBX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 136 CC_OP_TSUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 137 CC_OP_TSUBTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 138 CC_OP_LOGIC, /* modify N and Z, C = V = 0, CC_DST = res */ 139 CC_OP_NB, 140 }; 141 142 /* Trap base register */ 143 #define TBR_BASE_MASK 0xfffff000 144 145 #if defined(TARGET_SPARC64) 146 #define PS_TCT (1<<12) /* UA2007, impl.dep. trap on control transfer */ 147 #define PS_IG (1<<11) /* v9, zero on UA2007 */ 148 #define PS_MG (1<<10) /* v9, zero on UA2007 */ 149 #define PS_CLE (1<<9) /* UA2007 */ 150 #define PS_TLE (1<<8) /* UA2007 */ 151 #define PS_RMO (1<<7) 152 #define PS_RED (1<<5) /* v9, zero on UA2007 */ 153 #define PS_PEF (1<<4) /* enable fpu */ 154 #define PS_AM (1<<3) /* address mask */ 155 #define PS_PRIV (1<<2) 156 #define PS_IE (1<<1) 157 #define PS_AG (1<<0) /* v9, zero on UA2007 */ 158 159 #define FPRS_DL (1 << 0) 160 #define FPRS_DU (1 << 1) 161 #define FPRS_FEF (1 << 2) 162 163 #define HS_PRIV (1<<2) 164 #endif 165 166 /* Fcc */ 167 #define FSR_RD1 (1ULL << 31) 168 #define FSR_RD0 (1ULL << 30) 169 #define FSR_RD_MASK (FSR_RD1 | FSR_RD0) 170 #define FSR_RD_NEAREST 0 171 #define FSR_RD_ZERO FSR_RD0 172 #define FSR_RD_POS FSR_RD1 173 #define FSR_RD_NEG (FSR_RD1 | FSR_RD0) 174 175 #define FSR_NVM (1ULL << 27) 176 #define FSR_OFM (1ULL << 26) 177 #define FSR_UFM (1ULL << 25) 178 #define FSR_DZM (1ULL << 24) 179 #define FSR_NXM (1ULL << 23) 180 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM) 181 182 #define FSR_NVA (1ULL << 9) 183 #define FSR_OFA (1ULL << 8) 184 #define FSR_UFA (1ULL << 7) 185 #define FSR_DZA (1ULL << 6) 186 #define FSR_NXA (1ULL << 5) 187 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA) 188 189 #define FSR_NVC (1ULL << 4) 190 #define FSR_OFC (1ULL << 3) 191 #define FSR_UFC (1ULL << 2) 192 #define FSR_DZC (1ULL << 1) 193 #define FSR_NXC (1ULL << 0) 194 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC) 195 196 #define FSR_FTT2 (1ULL << 16) 197 #define FSR_FTT1 (1ULL << 15) 198 #define FSR_FTT0 (1ULL << 14) 199 //gcc warns about constant overflow for ~FSR_FTT_MASK 200 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0) 201 #ifdef TARGET_SPARC64 202 #define FSR_FTT_NMASK 0xfffffffffffe3fffULL 203 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL 204 #define FSR_LDFSR_OLDMASK 0x0000003f000fc000ULL 205 #define FSR_LDXFSR_MASK 0x0000003fcfc00fffULL 206 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL 207 #else 208 #define FSR_FTT_NMASK 0xfffe3fffULL 209 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL 210 #define FSR_LDFSR_OLDMASK 0x000fc000ULL 211 #endif 212 #define FSR_LDFSR_MASK 0xcfc00fffULL 213 #define FSR_FTT_IEEE_EXCP (1ULL << 14) 214 #define FSR_FTT_UNIMPFPOP (3ULL << 14) 215 #define FSR_FTT_SEQ_ERROR (4ULL << 14) 216 #define FSR_FTT_INVAL_FPR (6ULL << 14) 217 218 #define FSR_FCC1_SHIFT 11 219 #define FSR_FCC1 (1ULL << FSR_FCC1_SHIFT) 220 #define FSR_FCC0_SHIFT 10 221 #define FSR_FCC0 (1ULL << FSR_FCC0_SHIFT) 222 223 /* MMU */ 224 #define MMU_E (1<<0) 225 #define MMU_NF (1<<1) 226 227 #define PTE_ENTRYTYPE_MASK 3 228 #define PTE_ACCESS_MASK 0x1c 229 #define PTE_ACCESS_SHIFT 2 230 #define PTE_PPN_SHIFT 7 231 #define PTE_ADDR_MASK 0xffffff00 232 233 #define PG_ACCESSED_BIT 5 234 #define PG_MODIFIED_BIT 6 235 #define PG_CACHE_BIT 7 236 237 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT) 238 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT) 239 #define PG_CACHE_MASK (1 << PG_CACHE_BIT) 240 241 /* 3 <= NWINDOWS <= 32. */ 242 #define MIN_NWINDOWS 3 243 #define MAX_NWINDOWS 32 244 245 #ifdef TARGET_SPARC64 246 typedef struct trap_state { 247 uint64_t tpc; 248 uint64_t tnpc; 249 uint64_t tstate; 250 uint32_t tt; 251 } trap_state; 252 #endif 253 #define TARGET_INSN_START_EXTRA_WORDS 1 254 255 struct sparc_def_t { 256 const char *name; 257 target_ulong iu_version; 258 uint32_t fpu_version; 259 uint32_t mmu_version; 260 uint32_t mmu_bm; 261 uint32_t mmu_ctpr_mask; 262 uint32_t mmu_cxr_mask; 263 uint32_t mmu_sfsr_mask; 264 uint32_t mmu_trcr_mask; 265 uint32_t mxcc_version; 266 uint32_t features; 267 uint32_t nwindows; 268 uint32_t maxtl; 269 }; 270 271 #define CPU_FEATURE_FLOAT (1 << 0) 272 #define CPU_FEATURE_FLOAT128 (1 << 1) 273 #define CPU_FEATURE_SWAP (1 << 2) 274 #define CPU_FEATURE_MUL (1 << 3) 275 #define CPU_FEATURE_DIV (1 << 4) 276 #define CPU_FEATURE_FLUSH (1 << 5) 277 #define CPU_FEATURE_FSQRT (1 << 6) 278 #define CPU_FEATURE_FMUL (1 << 7) 279 #define CPU_FEATURE_VIS1 (1 << 8) 280 #define CPU_FEATURE_VIS2 (1 << 9) 281 #define CPU_FEATURE_FSMULD (1 << 10) 282 #define CPU_FEATURE_HYPV (1 << 11) 283 #define CPU_FEATURE_CMT (1 << 12) 284 #define CPU_FEATURE_GL (1 << 13) 285 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ 286 #define CPU_FEATURE_ASR17 (1 << 15) 287 #define CPU_FEATURE_CACHE_CTRL (1 << 16) 288 #define CPU_FEATURE_POWERDOWN (1 << 17) 289 #define CPU_FEATURE_CASA (1 << 18) 290 291 #ifndef TARGET_SPARC64 292 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 293 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 294 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 295 CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD) 296 #else 297 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 298 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 299 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 300 CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 | \ 301 CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \ 302 CPU_FEATURE_CASA) 303 enum { 304 mmu_us_12, // Ultrasparc < III (64 entry TLB) 305 mmu_us_3, // Ultrasparc III (512 entry TLB) 306 mmu_us_4, // Ultrasparc IV (several TLBs, 32 and 256MB pages) 307 mmu_sun4v, // T1, T2 308 }; 309 #endif 310 311 #define TTE_VALID_BIT (1ULL << 63) 312 #define TTE_NFO_BIT (1ULL << 60) 313 #define TTE_IE_BIT (1ULL << 59) 314 #define TTE_USED_BIT (1ULL << 41) 315 #define TTE_LOCKED_BIT (1ULL << 6) 316 #define TTE_SIDEEFFECT_BIT (1ULL << 3) 317 #define TTE_PRIV_BIT (1ULL << 2) 318 #define TTE_W_OK_BIT (1ULL << 1) 319 #define TTE_GLOBAL_BIT (1ULL << 0) 320 321 #define TTE_NFO_BIT_UA2005 (1ULL << 62) 322 #define TTE_USED_BIT_UA2005 (1ULL << 47) 323 #define TTE_LOCKED_BIT_UA2005 (1ULL << 61) 324 #define TTE_SIDEEFFECT_BIT_UA2005 (1ULL << 11) 325 #define TTE_PRIV_BIT_UA2005 (1ULL << 8) 326 #define TTE_W_OK_BIT_UA2005 (1ULL << 6) 327 328 #define TTE_IS_VALID(tte) ((tte) & TTE_VALID_BIT) 329 #define TTE_IS_NFO(tte) ((tte) & TTE_NFO_BIT) 330 #define TTE_IS_IE(tte) ((tte) & TTE_IE_BIT) 331 #define TTE_IS_USED(tte) ((tte) & TTE_USED_BIT) 332 #define TTE_IS_LOCKED(tte) ((tte) & TTE_LOCKED_BIT) 333 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT) 334 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 335 #define TTE_IS_PRIV(tte) ((tte) & TTE_PRIV_BIT) 336 #define TTE_IS_W_OK(tte) ((tte) & TTE_W_OK_BIT) 337 338 #define TTE_IS_NFO_UA2005(tte) ((tte) & TTE_NFO_BIT_UA2005) 339 #define TTE_IS_USED_UA2005(tte) ((tte) & TTE_USED_BIT_UA2005) 340 #define TTE_IS_LOCKED_UA2005(tte) ((tte) & TTE_LOCKED_BIT_UA2005) 341 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 342 #define TTE_IS_PRIV_UA2005(tte) ((tte) & TTE_PRIV_BIT_UA2005) 343 #define TTE_IS_W_OK_UA2005(tte) ((tte) & TTE_W_OK_BIT_UA2005) 344 345 #define TTE_IS_GLOBAL(tte) ((tte) & TTE_GLOBAL_BIT) 346 347 #define TTE_SET_USED(tte) ((tte) |= TTE_USED_BIT) 348 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT) 349 350 #define TTE_PGSIZE(tte) (((tte) >> 61) & 3ULL) 351 #define TTE_PGSIZE_UA2005(tte) ((tte) & 7ULL) 352 #define TTE_PA(tte) ((tte) & 0x1ffffffe000ULL) 353 354 /* UltraSPARC T1 specific */ 355 #define TLB_UST1_IS_REAL_BIT (1ULL << 9) /* Real translation entry */ 356 #define TLB_UST1_IS_SUN4V_BIT (1ULL << 10) /* sun4u/sun4v TTE format switch */ 357 358 #define SFSR_NF_BIT (1ULL << 24) /* JPS1 NoFault */ 359 #define SFSR_TM_BIT (1ULL << 15) /* JPS1 TLB Miss */ 360 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13) /* USIIi VA out of range (IMMU) */ 361 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12) /* USIIi VA out of range (DMMU) */ 362 #define SFSR_FT_NFO_BIT (1ULL << 11) /* NFO page access */ 363 #define SFSR_FT_ILL_BIT (1ULL << 10) /* illegal LDA/STA ASI */ 364 #define SFSR_FT_ATOMIC_BIT (1ULL << 9) /* atomic op on noncacheable area */ 365 #define SFSR_FT_NF_E_BIT (1ULL << 8) /* NF access on side effect area */ 366 #define SFSR_FT_PRIV_BIT (1ULL << 7) /* privilege violation */ 367 #define SFSR_PR_BIT (1ULL << 3) /* privilege mode */ 368 #define SFSR_WRITE_BIT (1ULL << 2) /* write access mode */ 369 #define SFSR_OW_BIT (1ULL << 1) /* status overwritten */ 370 #define SFSR_VALID_BIT (1ULL << 0) /* status valid */ 371 372 #define SFSR_ASI_SHIFT 16 /* 23:16 ASI value */ 373 #define SFSR_ASI_MASK (0xffULL << SFSR_ASI_SHIFT) 374 #define SFSR_CT_PRIMARY (0ULL << 4) /* 5:4 context type */ 375 #define SFSR_CT_SECONDARY (1ULL << 4) 376 #define SFSR_CT_NUCLEUS (2ULL << 4) 377 #define SFSR_CT_NOTRANS (3ULL << 4) 378 #define SFSR_CT_MASK (3ULL << 4) 379 380 /* Leon3 cache control */ 381 382 /* Cache control: emulate the behavior of cache control registers but without 383 any effect on the emulated */ 384 385 #define CACHE_STATE_MASK 0x3 386 #define CACHE_DISABLED 0x0 387 #define CACHE_FROZEN 0x1 388 #define CACHE_ENABLED 0x3 389 390 /* Cache Control register fields */ 391 392 #define CACHE_CTRL_IF (1 << 4) /* Instruction Cache Freeze on Interrupt */ 393 #define CACHE_CTRL_DF (1 << 5) /* Data Cache Freeze on Interrupt */ 394 #define CACHE_CTRL_DP (1 << 14) /* Data cache flush pending */ 395 #define CACHE_CTRL_IP (1 << 15) /* Instruction cache flush pending */ 396 #define CACHE_CTRL_IB (1 << 16) /* Instruction burst fetch */ 397 #define CACHE_CTRL_FI (1 << 21) /* Flush Instruction cache (Write only) */ 398 #define CACHE_CTRL_FD (1 << 22) /* Flush Data cache (Write only) */ 399 #define CACHE_CTRL_DS (1 << 23) /* Data cache snoop enable */ 400 401 #define CONVERT_BIT(X, SRC, DST) \ 402 (SRC > DST ? (X) / (SRC / DST) & (DST) : ((X) & SRC) * (DST / SRC)) 403 404 typedef struct SparcTLBEntry { 405 uint64_t tag; 406 uint64_t tte; 407 } SparcTLBEntry; 408 409 struct CPUTimer 410 { 411 const char *name; 412 uint32_t frequency; 413 uint32_t disabled; 414 uint64_t disabled_mask; 415 uint32_t npt; 416 uint64_t npt_mask; 417 int64_t clock_offset; 418 QEMUTimer *qtimer; 419 }; 420 421 typedef struct CPUTimer CPUTimer; 422 423 typedef struct CPUSPARCState CPUSPARCState; 424 #if defined(TARGET_SPARC64) 425 typedef union { 426 uint64_t mmuregs[16]; 427 struct { 428 uint64_t tsb_tag_target; 429 uint64_t mmu_primary_context; 430 uint64_t mmu_secondary_context; 431 uint64_t sfsr; 432 uint64_t sfar; 433 uint64_t tsb; 434 uint64_t tag_access; 435 uint64_t virtual_watchpoint; 436 uint64_t physical_watchpoint; 437 uint64_t sun4v_ctx_config[2]; 438 uint64_t sun4v_tsb_pointers[4]; 439 }; 440 } SparcV9MMU; 441 #endif 442 struct CPUSPARCState { 443 target_ulong gregs[8]; /* general registers */ 444 target_ulong *regwptr; /* pointer to current register window */ 445 target_ulong pc; /* program counter */ 446 target_ulong npc; /* next program counter */ 447 target_ulong y; /* multiply/divide register */ 448 449 /* emulator internal flags handling */ 450 target_ulong cc_src, cc_src2; 451 target_ulong cc_dst; 452 uint32_t cc_op; 453 454 target_ulong cond; /* conditional branch result (XXX: save it in a 455 temporary register when possible) */ 456 457 uint32_t psr; /* processor state register */ 458 target_ulong fsr; /* FPU state register */ 459 CPU_DoubleU fpr[TARGET_DPREGS]; /* floating point registers */ 460 uint32_t cwp; /* index of current register window (extracted 461 from PSR) */ 462 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32) 463 uint32_t wim; /* window invalid mask */ 464 #endif 465 target_ulong tbr; /* trap base register */ 466 #if !defined(TARGET_SPARC64) 467 int psrs; /* supervisor mode (extracted from PSR) */ 468 int psrps; /* previous supervisor mode */ 469 int psret; /* enable traps */ 470 #endif 471 uint32_t psrpil; /* interrupt blocking level */ 472 uint32_t pil_in; /* incoming interrupt level bitmap */ 473 #if !defined(TARGET_SPARC64) 474 int psref; /* enable fpu */ 475 #endif 476 int interrupt_index; 477 /* NOTE: we allow 8 more registers to handle wrapping */ 478 target_ulong regbase[MAX_NWINDOWS * 16 + 8]; 479 480 /* Fields up to this point are cleared by a CPU reset */ 481 struct {} end_reset_fields; 482 483 /* Fields from here on are preserved across CPU reset. */ 484 target_ulong version; 485 uint32_t nwindows; 486 487 /* MMU regs */ 488 #if defined(TARGET_SPARC64) 489 uint64_t lsu; 490 #define DMMU_E 0x8 491 #define IMMU_E 0x4 492 SparcV9MMU immu; 493 SparcV9MMU dmmu; 494 SparcTLBEntry itlb[64]; 495 SparcTLBEntry dtlb[64]; 496 uint32_t mmu_version; 497 #else 498 uint32_t mmuregs[32]; 499 uint64_t mxccdata[4]; 500 uint64_t mxccregs[8]; 501 uint32_t mmubpctrv, mmubpctrc, mmubpctrs; 502 uint64_t mmubpaction; 503 uint64_t mmubpregs[4]; 504 uint64_t prom_addr; 505 #endif 506 /* temporary float registers */ 507 float128 qt0, qt1; 508 float_status fp_status; 509 #if defined(TARGET_SPARC64) 510 #define MAXTL_MAX 8 511 #define MAXTL_MASK (MAXTL_MAX - 1) 512 trap_state ts[MAXTL_MAX]; 513 uint32_t xcc; /* Extended integer condition codes */ 514 uint32_t asi; 515 uint32_t pstate; 516 uint32_t tl; 517 uint32_t maxtl; 518 uint32_t cansave, canrestore, otherwin, wstate, cleanwin; 519 uint64_t agregs[8]; /* alternate general registers */ 520 uint64_t bgregs[8]; /* backup for normal global registers */ 521 uint64_t igregs[8]; /* interrupt general registers */ 522 uint64_t mgregs[8]; /* mmu general registers */ 523 uint64_t glregs[8 * MAXTL_MAX]; 524 uint64_t fprs; 525 uint64_t tick_cmpr, stick_cmpr; 526 CPUTimer *tick, *stick; 527 #define TICK_NPT_MASK 0x8000000000000000ULL 528 #define TICK_INT_DIS 0x8000000000000000ULL 529 uint64_t gsr; 530 uint32_t gl; // UA2005 531 /* UA 2005 hyperprivileged registers */ 532 uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr; 533 uint64_t scratch[8]; 534 CPUTimer *hstick; // UA 2005 535 /* Interrupt vector registers */ 536 uint64_t ivec_status; 537 uint64_t ivec_data[3]; 538 uint32_t softint; 539 #define SOFTINT_TIMER 1 540 #define SOFTINT_STIMER (1 << 16) 541 #define SOFTINT_INTRMASK (0xFFFE) 542 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER) 543 #endif 544 sparc_def_t def; 545 546 void *irq_manager; 547 void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno); 548 549 /* Leon3 cache control */ 550 uint32_t cache_control; 551 }; 552 553 /** 554 * SPARCCPU: 555 * @env: #CPUSPARCState 556 * 557 * A SPARC CPU. 558 */ 559 struct SPARCCPU { 560 /*< private >*/ 561 CPUState parent_obj; 562 /*< public >*/ 563 564 CPUNegativeOffsetState neg; 565 CPUSPARCState env; 566 }; 567 568 569 #ifndef CONFIG_USER_ONLY 570 extern const VMStateDescription vmstate_sparc_cpu; 571 #endif 572 573 void sparc_cpu_do_interrupt(CPUState *cpu); 574 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); 575 int sparc_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); 576 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 577 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, 578 MMUAccessType access_type, 579 int mmu_idx, 580 uintptr_t retaddr); 581 void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN; 582 583 #ifndef NO_CPU_IO_DEFS 584 /* cpu_init.c */ 585 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); 586 void sparc_cpu_list(void); 587 /* mmu_helper.c */ 588 bool sparc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, 589 MMUAccessType access_type, int mmu_idx, 590 bool probe, uintptr_t retaddr); 591 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev); 592 void dump_mmu(CPUSPARCState *env); 593 594 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) 595 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr, 596 uint8_t *buf, int len, bool is_write); 597 #endif 598 599 600 /* translate.c */ 601 void sparc_tcg_init(void); 602 603 /* cpu-exec.c */ 604 605 /* win_helper.c */ 606 target_ulong cpu_get_psr(CPUSPARCState *env1); 607 void cpu_put_psr(CPUSPARCState *env1, target_ulong val); 608 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val); 609 #ifdef TARGET_SPARC64 610 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate); 611 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl); 612 #endif 613 int cpu_cwp_inc(CPUSPARCState *env1, int cwp); 614 int cpu_cwp_dec(CPUSPARCState *env1, int cwp); 615 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp); 616 617 /* sun4m.c, sun4u.c */ 618 void cpu_check_irqs(CPUSPARCState *env); 619 620 #if defined (TARGET_SPARC64) 621 622 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask) 623 { 624 return (x & mask) == (y & mask); 625 } 626 627 #define MMU_CONTEXT_BITS 13 628 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1) 629 630 static inline int tlb_compare_context(const SparcTLBEntry *tlb, 631 uint64_t context) 632 { 633 return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK); 634 } 635 636 #endif 637 #endif 638 639 /* cpu-exec.c */ 640 #if !defined(CONFIG_USER_ONLY) 641 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, 642 vaddr addr, unsigned size, 643 MMUAccessType access_type, 644 int mmu_idx, MemTxAttrs attrs, 645 MemTxResult response, uintptr_t retaddr); 646 #if defined(TARGET_SPARC64) 647 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr, 648 int mmu_idx); 649 #endif 650 #endif 651 652 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU 653 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX 654 #define CPU_RESOLVING_TYPE TYPE_SPARC_CPU 655 656 #define cpu_list sparc_cpu_list 657 658 /* MMU modes definitions */ 659 #if defined (TARGET_SPARC64) 660 #define MMU_USER_IDX 0 661 #define MMU_USER_SECONDARY_IDX 1 662 #define MMU_KERNEL_IDX 2 663 #define MMU_KERNEL_SECONDARY_IDX 3 664 #define MMU_NUCLEUS_IDX 4 665 #define MMU_PHYS_IDX 5 666 #else 667 #define MMU_USER_IDX 0 668 #define MMU_KERNEL_IDX 1 669 #define MMU_PHYS_IDX 2 670 #endif 671 672 #if defined (TARGET_SPARC64) 673 static inline int cpu_has_hypervisor(CPUSPARCState *env1) 674 { 675 return env1->def.features & CPU_FEATURE_HYPV; 676 } 677 678 static inline int cpu_hypervisor_mode(CPUSPARCState *env1) 679 { 680 return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV); 681 } 682 683 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 684 { 685 return env1->pstate & PS_PRIV; 686 } 687 #else 688 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 689 { 690 return env1->psrs; 691 } 692 #endif 693 694 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch) 695 { 696 #if defined(CONFIG_USER_ONLY) 697 return MMU_USER_IDX; 698 #elif !defined(TARGET_SPARC64) 699 if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */ 700 return MMU_PHYS_IDX; 701 } else { 702 return env->psrs; 703 } 704 #else 705 /* IMMU or DMMU disabled. */ 706 if (ifetch 707 ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0 708 : (env->lsu & DMMU_E) == 0) { 709 return MMU_PHYS_IDX; 710 } else if (cpu_hypervisor_mode(env)) { 711 return MMU_PHYS_IDX; 712 } else if (env->tl > 0) { 713 return MMU_NUCLEUS_IDX; 714 } else if (cpu_supervisor_mode(env)) { 715 return MMU_KERNEL_IDX; 716 } else { 717 return MMU_USER_IDX; 718 } 719 #endif 720 } 721 722 static inline int cpu_interrupts_enabled(CPUSPARCState *env1) 723 { 724 #if !defined (TARGET_SPARC64) 725 if (env1->psret != 0) 726 return 1; 727 #else 728 if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) { 729 return 1; 730 } 731 #endif 732 733 return 0; 734 } 735 736 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil) 737 { 738 #if !defined(TARGET_SPARC64) 739 /* level 15 is non-maskable on sparc v8 */ 740 return pil == 15 || pil > env1->psrpil; 741 #else 742 return pil > env1->psrpil; 743 #endif 744 } 745 746 typedef CPUSPARCState CPUArchState; 747 typedef SPARCCPU ArchCPU; 748 749 #include "exec/cpu-all.h" 750 751 #ifdef TARGET_SPARC64 752 /* sun4u.c */ 753 void cpu_tick_set_count(CPUTimer *timer, uint64_t count); 754 uint64_t cpu_tick_get_count(CPUTimer *timer); 755 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit); 756 trap_state* cpu_tsptr(CPUSPARCState* env); 757 #endif 758 759 #define TB_FLAG_MMU_MASK 7 760 #define TB_FLAG_FPU_ENABLED (1 << 4) 761 #define TB_FLAG_AM_ENABLED (1 << 5) 762 #define TB_FLAG_SUPER (1 << 6) 763 #define TB_FLAG_HYPER (1 << 7) 764 #define TB_FLAG_ASI_SHIFT 24 765 766 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc, 767 target_ulong *cs_base, uint32_t *pflags) 768 { 769 uint32_t flags; 770 *pc = env->pc; 771 *cs_base = env->npc; 772 flags = cpu_mmu_index(env, false); 773 #ifndef CONFIG_USER_ONLY 774 if (cpu_supervisor_mode(env)) { 775 flags |= TB_FLAG_SUPER; 776 } 777 #endif 778 #ifdef TARGET_SPARC64 779 #ifndef CONFIG_USER_ONLY 780 if (cpu_hypervisor_mode(env)) { 781 flags |= TB_FLAG_HYPER; 782 } 783 #endif 784 if (env->pstate & PS_AM) { 785 flags |= TB_FLAG_AM_ENABLED; 786 } 787 if ((env->def.features & CPU_FEATURE_FLOAT) 788 && (env->pstate & PS_PEF) 789 && (env->fprs & FPRS_FEF)) { 790 flags |= TB_FLAG_FPU_ENABLED; 791 } 792 flags |= env->asi << TB_FLAG_ASI_SHIFT; 793 #else 794 if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) { 795 flags |= TB_FLAG_FPU_ENABLED; 796 } 797 #endif 798 *pflags = flags; 799 } 800 801 static inline bool tb_fpu_enabled(int tb_flags) 802 { 803 #if defined(CONFIG_USER_ONLY) 804 return true; 805 #else 806 return tb_flags & TB_FLAG_FPU_ENABLED; 807 #endif 808 } 809 810 static inline bool tb_am_enabled(int tb_flags) 811 { 812 #ifndef TARGET_SPARC64 813 return false; 814 #else 815 return tb_flags & TB_FLAG_AM_ENABLED; 816 #endif 817 } 818 819 #ifdef TARGET_SPARC64 820 /* win_helper.c */ 821 target_ulong cpu_get_ccr(CPUSPARCState *env1); 822 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val); 823 target_ulong cpu_get_cwp64(CPUSPARCState *env1); 824 void cpu_put_cwp64(CPUSPARCState *env1, int cwp); 825 826 static inline uint64_t sparc64_tstate(CPUSPARCState *env) 827 { 828 uint64_t tstate = (cpu_get_ccr(env) << 32) | 829 ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) | 830 cpu_get_cwp64(env); 831 832 if (env->def.features & CPU_FEATURE_GL) { 833 tstate |= (env->gl & 7ULL) << 40; 834 } 835 return tstate; 836 } 837 #endif 838 839 #endif 840