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 /* trap definitions */ 17 #ifndef TARGET_SPARC64 18 #define TT_TFAULT 0x01 19 #define TT_ILL_INSN 0x02 20 #define TT_PRIV_INSN 0x03 21 #define TT_NFPU_INSN 0x04 22 #define TT_WIN_OVF 0x05 23 #define TT_WIN_UNF 0x06 24 #define TT_UNALIGNED 0x07 25 #define TT_FP_EXCP 0x08 26 #define TT_DFAULT 0x09 27 #define TT_TOVF 0x0a 28 #define TT_EXTINT 0x10 29 #define TT_CODE_ACCESS 0x21 30 #define TT_UNIMP_FLUSH 0x25 31 #define TT_DATA_ACCESS 0x29 32 #define TT_DIV_ZERO 0x2a 33 #define TT_NCP_INSN 0x24 34 #define TT_TRAP 0x80 35 #else 36 #define TT_POWER_ON_RESET 0x01 37 #define TT_TFAULT 0x08 38 #define TT_CODE_ACCESS 0x0a 39 #define TT_ILL_INSN 0x10 40 #define TT_UNIMP_FLUSH TT_ILL_INSN 41 #define TT_PRIV_INSN 0x11 42 #define TT_NFPU_INSN 0x20 43 #define TT_FP_EXCP 0x21 44 #define TT_TOVF 0x23 45 #define TT_CLRWIN 0x24 46 #define TT_DIV_ZERO 0x28 47 #define TT_DFAULT 0x30 48 #define TT_DATA_ACCESS 0x32 49 #define TT_UNALIGNED 0x34 50 #define TT_PRIV_ACT 0x37 51 #define TT_INSN_REAL_TRANSLATION_MISS 0x3e 52 #define TT_DATA_REAL_TRANSLATION_MISS 0x3f 53 #define TT_EXTINT 0x40 54 #define TT_IVEC 0x60 55 #define TT_TMISS 0x64 56 #define TT_DMISS 0x68 57 #define TT_DPROT 0x6c 58 #define TT_SPILL 0x80 59 #define TT_FILL 0xc0 60 #define TT_WOTHER (1 << 5) 61 #define TT_TRAP 0x100 62 #define TT_HTRAP 0x180 63 #endif 64 65 #define PSR_NEG_SHIFT 23 66 #define PSR_NEG (1 << PSR_NEG_SHIFT) 67 #define PSR_ZERO_SHIFT 22 68 #define PSR_ZERO (1 << PSR_ZERO_SHIFT) 69 #define PSR_OVF_SHIFT 21 70 #define PSR_OVF (1 << PSR_OVF_SHIFT) 71 #define PSR_CARRY_SHIFT 20 72 #define PSR_CARRY (1 << PSR_CARRY_SHIFT) 73 #define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY) 74 #if !defined(TARGET_SPARC64) 75 #define PSR_EF (1<<12) 76 #define PSR_PIL 0xf00 77 #define PSR_S (1<<7) 78 #define PSR_PS (1<<6) 79 #define PSR_ET (1<<5) 80 #define PSR_CWP 0x1f 81 #endif 82 83 #define CC_SRC (env->cc_src) 84 #define CC_SRC2 (env->cc_src2) 85 #define CC_DST (env->cc_dst) 86 #define CC_OP (env->cc_op) 87 88 /* Even though lazy evaluation of CPU condition codes tends to be less 89 * important on RISC systems where condition codes are only updated 90 * when explicitly requested, SPARC uses it to update 32-bit and 64-bit 91 * condition codes. 92 */ 93 enum { 94 CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ 95 CC_OP_FLAGS, /* all cc are back in status register */ 96 CC_OP_DIV, /* modify N, Z and V, C = 0*/ 97 CC_OP_ADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 98 CC_OP_ADDX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 99 CC_OP_TADD, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 100 CC_OP_TADDTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 101 CC_OP_SUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 102 CC_OP_SUBX, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 103 CC_OP_TSUB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ 104 CC_OP_TSUBTV, /* modify all flags except V, CC_DST = res, CC_SRC = src1 */ 105 CC_OP_LOGIC, /* modify N and Z, C = V = 0, CC_DST = res */ 106 CC_OP_NB, 107 }; 108 109 /* Trap base register */ 110 #define TBR_BASE_MASK 0xfffff000 111 112 #if defined(TARGET_SPARC64) 113 #define PS_TCT (1<<12) /* UA2007, impl.dep. trap on control transfer */ 114 #define PS_IG (1<<11) /* v9, zero on UA2007 */ 115 #define PS_MG (1<<10) /* v9, zero on UA2007 */ 116 #define PS_CLE (1<<9) /* UA2007 */ 117 #define PS_TLE (1<<8) /* UA2007 */ 118 #define PS_RMO (1<<7) 119 #define PS_RED (1<<5) /* v9, zero on UA2007 */ 120 #define PS_PEF (1<<4) /* enable fpu */ 121 #define PS_AM (1<<3) /* address mask */ 122 #define PS_PRIV (1<<2) 123 #define PS_IE (1<<1) 124 #define PS_AG (1<<0) /* v9, zero on UA2007 */ 125 126 #define FPRS_FEF (1<<2) 127 128 #define HS_PRIV (1<<2) 129 #endif 130 131 /* Fcc */ 132 #define FSR_RD1 (1ULL << 31) 133 #define FSR_RD0 (1ULL << 30) 134 #define FSR_RD_MASK (FSR_RD1 | FSR_RD0) 135 #define FSR_RD_NEAREST 0 136 #define FSR_RD_ZERO FSR_RD0 137 #define FSR_RD_POS FSR_RD1 138 #define FSR_RD_NEG (FSR_RD1 | FSR_RD0) 139 140 #define FSR_NVM (1ULL << 27) 141 #define FSR_OFM (1ULL << 26) 142 #define FSR_UFM (1ULL << 25) 143 #define FSR_DZM (1ULL << 24) 144 #define FSR_NXM (1ULL << 23) 145 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM) 146 147 #define FSR_NVA (1ULL << 9) 148 #define FSR_OFA (1ULL << 8) 149 #define FSR_UFA (1ULL << 7) 150 #define FSR_DZA (1ULL << 6) 151 #define FSR_NXA (1ULL << 5) 152 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA) 153 154 #define FSR_NVC (1ULL << 4) 155 #define FSR_OFC (1ULL << 3) 156 #define FSR_UFC (1ULL << 2) 157 #define FSR_DZC (1ULL << 1) 158 #define FSR_NXC (1ULL << 0) 159 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC) 160 161 #define FSR_FTT2 (1ULL << 16) 162 #define FSR_FTT1 (1ULL << 15) 163 #define FSR_FTT0 (1ULL << 14) 164 //gcc warns about constant overflow for ~FSR_FTT_MASK 165 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0) 166 #ifdef TARGET_SPARC64 167 #define FSR_FTT_NMASK 0xfffffffffffe3fffULL 168 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL 169 #define FSR_LDFSR_OLDMASK 0x0000003f000fc000ULL 170 #define FSR_LDXFSR_MASK 0x0000003fcfc00fffULL 171 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL 172 #else 173 #define FSR_FTT_NMASK 0xfffe3fffULL 174 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL 175 #define FSR_LDFSR_OLDMASK 0x000fc000ULL 176 #endif 177 #define FSR_LDFSR_MASK 0xcfc00fffULL 178 #define FSR_FTT_IEEE_EXCP (1ULL << 14) 179 #define FSR_FTT_UNIMPFPOP (3ULL << 14) 180 #define FSR_FTT_SEQ_ERROR (4ULL << 14) 181 #define FSR_FTT_INVAL_FPR (6ULL << 14) 182 183 #define FSR_FCC1_SHIFT 11 184 #define FSR_FCC1 (1ULL << FSR_FCC1_SHIFT) 185 #define FSR_FCC0_SHIFT 10 186 #define FSR_FCC0 (1ULL << FSR_FCC0_SHIFT) 187 188 /* MMU */ 189 #define MMU_E (1<<0) 190 #define MMU_NF (1<<1) 191 192 #define PTE_ENTRYTYPE_MASK 3 193 #define PTE_ACCESS_MASK 0x1c 194 #define PTE_ACCESS_SHIFT 2 195 #define PTE_PPN_SHIFT 7 196 #define PTE_ADDR_MASK 0xffffff00 197 198 #define PG_ACCESSED_BIT 5 199 #define PG_MODIFIED_BIT 6 200 #define PG_CACHE_BIT 7 201 202 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT) 203 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT) 204 #define PG_CACHE_MASK (1 << PG_CACHE_BIT) 205 206 /* 3 <= NWINDOWS <= 32. */ 207 #define MIN_NWINDOWS 3 208 #define MAX_NWINDOWS 32 209 210 #ifdef TARGET_SPARC64 211 typedef struct trap_state { 212 uint64_t tpc; 213 uint64_t tnpc; 214 uint64_t tstate; 215 uint32_t tt; 216 } trap_state; 217 #endif 218 #define TARGET_INSN_START_EXTRA_WORDS 1 219 220 struct sparc_def_t { 221 const char *name; 222 target_ulong iu_version; 223 uint32_t fpu_version; 224 uint32_t mmu_version; 225 uint32_t mmu_bm; 226 uint32_t mmu_ctpr_mask; 227 uint32_t mmu_cxr_mask; 228 uint32_t mmu_sfsr_mask; 229 uint32_t mmu_trcr_mask; 230 uint32_t mxcc_version; 231 uint32_t features; 232 uint32_t nwindows; 233 uint32_t maxtl; 234 }; 235 236 #define CPU_FEATURE_FLOAT (1 << 0) 237 #define CPU_FEATURE_FLOAT128 (1 << 1) 238 #define CPU_FEATURE_SWAP (1 << 2) 239 #define CPU_FEATURE_MUL (1 << 3) 240 #define CPU_FEATURE_DIV (1 << 4) 241 #define CPU_FEATURE_FLUSH (1 << 5) 242 #define CPU_FEATURE_FSQRT (1 << 6) 243 #define CPU_FEATURE_FMUL (1 << 7) 244 #define CPU_FEATURE_VIS1 (1 << 8) 245 #define CPU_FEATURE_VIS2 (1 << 9) 246 #define CPU_FEATURE_FSMULD (1 << 10) 247 #define CPU_FEATURE_HYPV (1 << 11) 248 #define CPU_FEATURE_CMT (1 << 12) 249 #define CPU_FEATURE_GL (1 << 13) 250 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ 251 #define CPU_FEATURE_ASR17 (1 << 15) 252 #define CPU_FEATURE_CACHE_CTRL (1 << 16) 253 #define CPU_FEATURE_POWERDOWN (1 << 17) 254 #define CPU_FEATURE_CASA (1 << 18) 255 256 #ifndef TARGET_SPARC64 257 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 258 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 259 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 260 CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD) 261 #else 262 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ 263 CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ 264 CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \ 265 CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 | \ 266 CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \ 267 CPU_FEATURE_CASA) 268 enum { 269 mmu_us_12, // Ultrasparc < III (64 entry TLB) 270 mmu_us_3, // Ultrasparc III (512 entry TLB) 271 mmu_us_4, // Ultrasparc IV (several TLBs, 32 and 256MB pages) 272 mmu_sun4v, // T1, T2 273 }; 274 #endif 275 276 #define TTE_VALID_BIT (1ULL << 63) 277 #define TTE_NFO_BIT (1ULL << 60) 278 #define TTE_IE_BIT (1ULL << 59) 279 #define TTE_USED_BIT (1ULL << 41) 280 #define TTE_LOCKED_BIT (1ULL << 6) 281 #define TTE_SIDEEFFECT_BIT (1ULL << 3) 282 #define TTE_PRIV_BIT (1ULL << 2) 283 #define TTE_W_OK_BIT (1ULL << 1) 284 #define TTE_GLOBAL_BIT (1ULL << 0) 285 286 #define TTE_NFO_BIT_UA2005 (1ULL << 62) 287 #define TTE_USED_BIT_UA2005 (1ULL << 47) 288 #define TTE_LOCKED_BIT_UA2005 (1ULL << 61) 289 #define TTE_SIDEEFFECT_BIT_UA2005 (1ULL << 11) 290 #define TTE_PRIV_BIT_UA2005 (1ULL << 8) 291 #define TTE_W_OK_BIT_UA2005 (1ULL << 6) 292 293 #define TTE_IS_VALID(tte) ((tte) & TTE_VALID_BIT) 294 #define TTE_IS_NFO(tte) ((tte) & TTE_NFO_BIT) 295 #define TTE_IS_IE(tte) ((tte) & TTE_IE_BIT) 296 #define TTE_IS_USED(tte) ((tte) & TTE_USED_BIT) 297 #define TTE_IS_LOCKED(tte) ((tte) & TTE_LOCKED_BIT) 298 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT) 299 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 300 #define TTE_IS_PRIV(tte) ((tte) & TTE_PRIV_BIT) 301 #define TTE_IS_W_OK(tte) ((tte) & TTE_W_OK_BIT) 302 303 #define TTE_IS_NFO_UA2005(tte) ((tte) & TTE_NFO_BIT_UA2005) 304 #define TTE_IS_USED_UA2005(tte) ((tte) & TTE_USED_BIT_UA2005) 305 #define TTE_IS_LOCKED_UA2005(tte) ((tte) & TTE_LOCKED_BIT_UA2005) 306 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005) 307 #define TTE_IS_PRIV_UA2005(tte) ((tte) & TTE_PRIV_BIT_UA2005) 308 #define TTE_IS_W_OK_UA2005(tte) ((tte) & TTE_W_OK_BIT_UA2005) 309 310 #define TTE_IS_GLOBAL(tte) ((tte) & TTE_GLOBAL_BIT) 311 312 #define TTE_SET_USED(tte) ((tte) |= TTE_USED_BIT) 313 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT) 314 315 #define TTE_PGSIZE(tte) (((tte) >> 61) & 3ULL) 316 #define TTE_PGSIZE_UA2005(tte) ((tte) & 7ULL) 317 #define TTE_PA(tte) ((tte) & 0x1ffffffe000ULL) 318 319 /* UltraSPARC T1 specific */ 320 #define TLB_UST1_IS_REAL_BIT (1ULL << 9) /* Real translation entry */ 321 #define TLB_UST1_IS_SUN4V_BIT (1ULL << 10) /* sun4u/sun4v TTE format switch */ 322 323 #define SFSR_NF_BIT (1ULL << 24) /* JPS1 NoFault */ 324 #define SFSR_TM_BIT (1ULL << 15) /* JPS1 TLB Miss */ 325 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13) /* USIIi VA out of range (IMMU) */ 326 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12) /* USIIi VA out of range (DMMU) */ 327 #define SFSR_FT_NFO_BIT (1ULL << 11) /* NFO page access */ 328 #define SFSR_FT_ILL_BIT (1ULL << 10) /* illegal LDA/STA ASI */ 329 #define SFSR_FT_ATOMIC_BIT (1ULL << 9) /* atomic op on noncacheable area */ 330 #define SFSR_FT_NF_E_BIT (1ULL << 8) /* NF access on side effect area */ 331 #define SFSR_FT_PRIV_BIT (1ULL << 7) /* privilege violation */ 332 #define SFSR_PR_BIT (1ULL << 3) /* privilege mode */ 333 #define SFSR_WRITE_BIT (1ULL << 2) /* write access mode */ 334 #define SFSR_OW_BIT (1ULL << 1) /* status overwritten */ 335 #define SFSR_VALID_BIT (1ULL << 0) /* status valid */ 336 337 #define SFSR_ASI_SHIFT 16 /* 23:16 ASI value */ 338 #define SFSR_ASI_MASK (0xffULL << SFSR_ASI_SHIFT) 339 #define SFSR_CT_PRIMARY (0ULL << 4) /* 5:4 context type */ 340 #define SFSR_CT_SECONDARY (1ULL << 4) 341 #define SFSR_CT_NUCLEUS (2ULL << 4) 342 #define SFSR_CT_NOTRANS (3ULL << 4) 343 #define SFSR_CT_MASK (3ULL << 4) 344 345 /* Leon3 cache control */ 346 347 /* Cache control: emulate the behavior of cache control registers but without 348 any effect on the emulated */ 349 350 #define CACHE_STATE_MASK 0x3 351 #define CACHE_DISABLED 0x0 352 #define CACHE_FROZEN 0x1 353 #define CACHE_ENABLED 0x3 354 355 /* Cache Control register fields */ 356 357 #define CACHE_CTRL_IF (1 << 4) /* Instruction Cache Freeze on Interrupt */ 358 #define CACHE_CTRL_DF (1 << 5) /* Data Cache Freeze on Interrupt */ 359 #define CACHE_CTRL_DP (1 << 14) /* Data cache flush pending */ 360 #define CACHE_CTRL_IP (1 << 15) /* Instruction cache flush pending */ 361 #define CACHE_CTRL_IB (1 << 16) /* Instruction burst fetch */ 362 #define CACHE_CTRL_FI (1 << 21) /* Flush Instruction cache (Write only) */ 363 #define CACHE_CTRL_FD (1 << 22) /* Flush Data cache (Write only) */ 364 #define CACHE_CTRL_DS (1 << 23) /* Data cache snoop enable */ 365 366 #define CONVERT_BIT(X, SRC, DST) \ 367 (SRC > DST ? (X) / (SRC / DST) & (DST) : ((X) & SRC) * (DST / SRC)) 368 369 typedef struct SparcTLBEntry { 370 uint64_t tag; 371 uint64_t tte; 372 } SparcTLBEntry; 373 374 struct CPUTimer 375 { 376 const char *name; 377 uint32_t frequency; 378 uint32_t disabled; 379 uint64_t disabled_mask; 380 uint32_t npt; 381 uint64_t npt_mask; 382 int64_t clock_offset; 383 QEMUTimer *qtimer; 384 }; 385 386 typedef struct CPUTimer CPUTimer; 387 388 typedef struct CPUSPARCState CPUSPARCState; 389 #if defined(TARGET_SPARC64) 390 typedef union { 391 uint64_t mmuregs[16]; 392 struct { 393 uint64_t tsb_tag_target; 394 uint64_t mmu_primary_context; 395 uint64_t mmu_secondary_context; 396 uint64_t sfsr; 397 uint64_t sfar; 398 uint64_t tsb; 399 uint64_t tag_access; 400 uint64_t virtual_watchpoint; 401 uint64_t physical_watchpoint; 402 uint64_t sun4v_ctx_config[2]; 403 uint64_t sun4v_tsb_pointers[4]; 404 }; 405 } SparcV9MMU; 406 #endif 407 struct CPUSPARCState { 408 target_ulong gregs[8]; /* general registers */ 409 target_ulong *regwptr; /* pointer to current register window */ 410 target_ulong pc; /* program counter */ 411 target_ulong npc; /* next program counter */ 412 target_ulong y; /* multiply/divide register */ 413 414 /* emulator internal flags handling */ 415 target_ulong cc_src, cc_src2; 416 target_ulong cc_dst; 417 uint32_t cc_op; 418 419 target_ulong cond; /* conditional branch result (XXX: save it in a 420 temporary register when possible) */ 421 422 uint32_t psr; /* processor state register */ 423 target_ulong fsr; /* FPU state register */ 424 CPU_DoubleU fpr[TARGET_DPREGS]; /* floating point registers */ 425 uint32_t cwp; /* index of current register window (extracted 426 from PSR) */ 427 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32) 428 uint32_t wim; /* window invalid mask */ 429 #endif 430 target_ulong tbr; /* trap base register */ 431 #if !defined(TARGET_SPARC64) 432 int psrs; /* supervisor mode (extracted from PSR) */ 433 int psrps; /* previous supervisor mode */ 434 int psret; /* enable traps */ 435 #endif 436 uint32_t psrpil; /* interrupt blocking level */ 437 uint32_t pil_in; /* incoming interrupt level bitmap */ 438 #if !defined(TARGET_SPARC64) 439 int psref; /* enable fpu */ 440 #endif 441 int interrupt_index; 442 /* NOTE: we allow 8 more registers to handle wrapping */ 443 target_ulong regbase[MAX_NWINDOWS * 16 + 8]; 444 445 /* Fields up to this point are cleared by a CPU reset */ 446 struct {} end_reset_fields; 447 448 /* Fields from here on are preserved across CPU reset. */ 449 target_ulong version; 450 uint32_t nwindows; 451 452 /* MMU regs */ 453 #if defined(TARGET_SPARC64) 454 uint64_t lsu; 455 #define DMMU_E 0x8 456 #define IMMU_E 0x4 457 SparcV9MMU immu; 458 SparcV9MMU dmmu; 459 SparcTLBEntry itlb[64]; 460 SparcTLBEntry dtlb[64]; 461 uint32_t mmu_version; 462 #else 463 uint32_t mmuregs[32]; 464 uint64_t mxccdata[4]; 465 uint64_t mxccregs[8]; 466 uint32_t mmubpctrv, mmubpctrc, mmubpctrs; 467 uint64_t mmubpaction; 468 uint64_t mmubpregs[4]; 469 uint64_t prom_addr; 470 #endif 471 /* temporary float registers */ 472 float128 qt0, qt1; 473 float_status fp_status; 474 #if defined(TARGET_SPARC64) 475 #define MAXTL_MAX 8 476 #define MAXTL_MASK (MAXTL_MAX - 1) 477 trap_state ts[MAXTL_MAX]; 478 uint32_t xcc; /* Extended integer condition codes */ 479 uint32_t asi; 480 uint32_t pstate; 481 uint32_t tl; 482 uint32_t maxtl; 483 uint32_t cansave, canrestore, otherwin, wstate, cleanwin; 484 uint64_t agregs[8]; /* alternate general registers */ 485 uint64_t bgregs[8]; /* backup for normal global registers */ 486 uint64_t igregs[8]; /* interrupt general registers */ 487 uint64_t mgregs[8]; /* mmu general registers */ 488 uint64_t glregs[8 * MAXTL_MAX]; 489 uint64_t fprs; 490 uint64_t tick_cmpr, stick_cmpr; 491 CPUTimer *tick, *stick; 492 #define TICK_NPT_MASK 0x8000000000000000ULL 493 #define TICK_INT_DIS 0x8000000000000000ULL 494 uint64_t gsr; 495 uint32_t gl; // UA2005 496 /* UA 2005 hyperprivileged registers */ 497 uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr; 498 uint64_t scratch[8]; 499 CPUTimer *hstick; // UA 2005 500 /* Interrupt vector registers */ 501 uint64_t ivec_status; 502 uint64_t ivec_data[3]; 503 uint32_t softint; 504 #define SOFTINT_TIMER 1 505 #define SOFTINT_STIMER (1 << 16) 506 #define SOFTINT_INTRMASK (0xFFFE) 507 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER) 508 #endif 509 sparc_def_t def; 510 511 void *irq_manager; 512 void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno); 513 514 /* Leon3 cache control */ 515 uint32_t cache_control; 516 }; 517 518 /** 519 * SPARCCPU: 520 * @env: #CPUSPARCState 521 * 522 * A SPARC CPU. 523 */ 524 struct SPARCCPU { 525 /*< private >*/ 526 CPUState parent_obj; 527 /*< public >*/ 528 529 CPUNegativeOffsetState neg; 530 CPUSPARCState env; 531 }; 532 533 534 #ifndef CONFIG_USER_ONLY 535 extern const VMStateDescription vmstate_sparc_cpu; 536 #endif 537 538 void sparc_cpu_do_interrupt(CPUState *cpu); 539 void sparc_cpu_dump_state(CPUState *cpu, FILE *f, int flags); 540 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); 541 int sparc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); 542 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 543 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, 544 MMUAccessType access_type, 545 int mmu_idx, 546 uintptr_t retaddr); 547 void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN; 548 549 #ifndef NO_CPU_IO_DEFS 550 /* cpu_init.c */ 551 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu); 552 void sparc_cpu_list(void); 553 /* mmu_helper.c */ 554 bool sparc_cpu_tlb_fill(CPUState *cs, vaddr address, int size, 555 MMUAccessType access_type, int mmu_idx, 556 bool probe, uintptr_t retaddr); 557 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev); 558 void dump_mmu(CPUSPARCState *env); 559 560 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) 561 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr, 562 uint8_t *buf, int len, bool is_write); 563 #endif 564 565 566 /* translate.c */ 567 void sparc_tcg_init(void); 568 569 /* cpu-exec.c */ 570 571 /* win_helper.c */ 572 target_ulong cpu_get_psr(CPUSPARCState *env1); 573 void cpu_put_psr(CPUSPARCState *env1, target_ulong val); 574 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val); 575 #ifdef TARGET_SPARC64 576 target_ulong cpu_get_ccr(CPUSPARCState *env1); 577 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val); 578 target_ulong cpu_get_cwp64(CPUSPARCState *env1); 579 void cpu_put_cwp64(CPUSPARCState *env1, int cwp); 580 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate); 581 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl); 582 #endif 583 int cpu_cwp_inc(CPUSPARCState *env1, int cwp); 584 int cpu_cwp_dec(CPUSPARCState *env1, int cwp); 585 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp); 586 587 /* int_helper.c */ 588 void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno); 589 590 /* sun4m.c, sun4u.c */ 591 void cpu_check_irqs(CPUSPARCState *env); 592 593 /* leon3.c */ 594 void leon3_irq_ack(void *irq_manager, int intno); 595 596 #if defined (TARGET_SPARC64) 597 598 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask) 599 { 600 return (x & mask) == (y & mask); 601 } 602 603 #define MMU_CONTEXT_BITS 13 604 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1) 605 606 static inline int tlb_compare_context(const SparcTLBEntry *tlb, 607 uint64_t context) 608 { 609 return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK); 610 } 611 612 #endif 613 #endif 614 615 /* cpu-exec.c */ 616 #if !defined(CONFIG_USER_ONLY) 617 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, 618 vaddr addr, unsigned size, 619 MMUAccessType access_type, 620 int mmu_idx, MemTxAttrs attrs, 621 MemTxResult response, uintptr_t retaddr); 622 #if defined(TARGET_SPARC64) 623 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr, 624 int mmu_idx); 625 #endif 626 #endif 627 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc); 628 629 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU 630 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX 631 #define CPU_RESOLVING_TYPE TYPE_SPARC_CPU 632 633 #define cpu_signal_handler cpu_sparc_signal_handler 634 #define cpu_list sparc_cpu_list 635 636 /* MMU modes definitions */ 637 #if defined (TARGET_SPARC64) 638 #define MMU_USER_IDX 0 639 #define MMU_USER_SECONDARY_IDX 1 640 #define MMU_KERNEL_IDX 2 641 #define MMU_KERNEL_SECONDARY_IDX 3 642 #define MMU_NUCLEUS_IDX 4 643 #define MMU_PHYS_IDX 5 644 #else 645 #define MMU_USER_IDX 0 646 #define MMU_KERNEL_IDX 1 647 #define MMU_PHYS_IDX 2 648 #endif 649 650 #if defined (TARGET_SPARC64) 651 static inline int cpu_has_hypervisor(CPUSPARCState *env1) 652 { 653 return env1->def.features & CPU_FEATURE_HYPV; 654 } 655 656 static inline int cpu_hypervisor_mode(CPUSPARCState *env1) 657 { 658 return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV); 659 } 660 661 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 662 { 663 return env1->pstate & PS_PRIV; 664 } 665 #else 666 static inline int cpu_supervisor_mode(CPUSPARCState *env1) 667 { 668 return env1->psrs; 669 } 670 #endif 671 672 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch) 673 { 674 #if defined(CONFIG_USER_ONLY) 675 return MMU_USER_IDX; 676 #elif !defined(TARGET_SPARC64) 677 if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */ 678 return MMU_PHYS_IDX; 679 } else { 680 return env->psrs; 681 } 682 #else 683 /* IMMU or DMMU disabled. */ 684 if (ifetch 685 ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0 686 : (env->lsu & DMMU_E) == 0) { 687 return MMU_PHYS_IDX; 688 } else if (cpu_hypervisor_mode(env)) { 689 return MMU_PHYS_IDX; 690 } else if (env->tl > 0) { 691 return MMU_NUCLEUS_IDX; 692 } else if (cpu_supervisor_mode(env)) { 693 return MMU_KERNEL_IDX; 694 } else { 695 return MMU_USER_IDX; 696 } 697 #endif 698 } 699 700 static inline int cpu_interrupts_enabled(CPUSPARCState *env1) 701 { 702 #if !defined (TARGET_SPARC64) 703 if (env1->psret != 0) 704 return 1; 705 #else 706 if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) { 707 return 1; 708 } 709 #endif 710 711 return 0; 712 } 713 714 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil) 715 { 716 #if !defined(TARGET_SPARC64) 717 /* level 15 is non-maskable on sparc v8 */ 718 return pil == 15 || pil > env1->psrpil; 719 #else 720 return pil > env1->psrpil; 721 #endif 722 } 723 724 typedef CPUSPARCState CPUArchState; 725 typedef SPARCCPU ArchCPU; 726 727 #include "exec/cpu-all.h" 728 729 #ifdef TARGET_SPARC64 730 /* sun4u.c */ 731 void cpu_tick_set_count(CPUTimer *timer, uint64_t count); 732 uint64_t cpu_tick_get_count(CPUTimer *timer); 733 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit); 734 trap_state* cpu_tsptr(CPUSPARCState* env); 735 #endif 736 737 #define TB_FLAG_MMU_MASK 7 738 #define TB_FLAG_FPU_ENABLED (1 << 4) 739 #define TB_FLAG_AM_ENABLED (1 << 5) 740 #define TB_FLAG_SUPER (1 << 6) 741 #define TB_FLAG_HYPER (1 << 7) 742 #define TB_FLAG_ASI_SHIFT 24 743 744 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc, 745 target_ulong *cs_base, uint32_t *pflags) 746 { 747 uint32_t flags; 748 *pc = env->pc; 749 *cs_base = env->npc; 750 flags = cpu_mmu_index(env, false); 751 #ifndef CONFIG_USER_ONLY 752 if (cpu_supervisor_mode(env)) { 753 flags |= TB_FLAG_SUPER; 754 } 755 #endif 756 #ifdef TARGET_SPARC64 757 #ifndef CONFIG_USER_ONLY 758 if (cpu_hypervisor_mode(env)) { 759 flags |= TB_FLAG_HYPER; 760 } 761 #endif 762 if (env->pstate & PS_AM) { 763 flags |= TB_FLAG_AM_ENABLED; 764 } 765 if ((env->def.features & CPU_FEATURE_FLOAT) 766 && (env->pstate & PS_PEF) 767 && (env->fprs & FPRS_FEF)) { 768 flags |= TB_FLAG_FPU_ENABLED; 769 } 770 flags |= env->asi << TB_FLAG_ASI_SHIFT; 771 #else 772 if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) { 773 flags |= TB_FLAG_FPU_ENABLED; 774 } 775 #endif 776 *pflags = flags; 777 } 778 779 static inline bool tb_fpu_enabled(int tb_flags) 780 { 781 #if defined(CONFIG_USER_ONLY) 782 return true; 783 #else 784 return tb_flags & TB_FLAG_FPU_ENABLED; 785 #endif 786 } 787 788 static inline bool tb_am_enabled(int tb_flags) 789 { 790 #ifndef TARGET_SPARC64 791 return false; 792 #else 793 return tb_flags & TB_FLAG_AM_ENABLED; 794 #endif 795 } 796 797 #endif 798