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