1 #ifndef MIPS_CPU_H 2 #define MIPS_CPU_H 3 4 #define ALIGNED_ONLY 5 6 #define CPUArchState struct CPUMIPSState 7 8 #include "qemu-common.h" 9 #include "cpu-qom.h" 10 #include "mips-defs.h" 11 #include "exec/cpu-defs.h" 12 #include "fpu/softfloat.h" 13 14 struct CPUMIPSState; 15 16 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext; 17 18 /* MSA Context */ 19 #define MSA_WRLEN (128) 20 21 typedef union wr_t wr_t; 22 union wr_t { 23 int8_t b[MSA_WRLEN/8]; 24 int16_t h[MSA_WRLEN/16]; 25 int32_t w[MSA_WRLEN/32]; 26 int64_t d[MSA_WRLEN/64]; 27 }; 28 29 typedef union fpr_t fpr_t; 30 union fpr_t { 31 float64 fd; /* ieee double precision */ 32 float32 fs[2];/* ieee single precision */ 33 uint64_t d; /* binary double fixed-point */ 34 uint32_t w[2]; /* binary single fixed-point */ 35 /* FPU/MSA register mapping is not tested on big-endian hosts. */ 36 wr_t wr; /* vector data */ 37 }; 38 /* define FP_ENDIAN_IDX to access the same location 39 * in the fpr_t union regardless of the host endianness 40 */ 41 #if defined(HOST_WORDS_BIGENDIAN) 42 # define FP_ENDIAN_IDX 1 43 #else 44 # define FP_ENDIAN_IDX 0 45 #endif 46 47 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext; 48 struct CPUMIPSFPUContext { 49 /* Floating point registers */ 50 fpr_t fpr[32]; 51 float_status fp_status; 52 /* fpu implementation/revision register (fir) */ 53 uint32_t fcr0; 54 #define FCR0_FREP 29 55 #define FCR0_UFRP 28 56 #define FCR0_HAS2008 23 57 #define FCR0_F64 22 58 #define FCR0_L 21 59 #define FCR0_W 20 60 #define FCR0_3D 19 61 #define FCR0_PS 18 62 #define FCR0_D 17 63 #define FCR0_S 16 64 #define FCR0_PRID 8 65 #define FCR0_REV 0 66 /* fcsr */ 67 uint32_t fcr31_rw_bitmask; 68 uint32_t fcr31; 69 #define FCR31_FS 24 70 #define FCR31_ABS2008 19 71 #define FCR31_NAN2008 18 72 #define SET_FP_COND(num,env) do { ((env).fcr31) |= ((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0) 73 #define CLEAR_FP_COND(num,env) do { ((env).fcr31) &= ~((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0) 74 #define GET_FP_COND(env) ((((env).fcr31 >> 24) & 0xfe) | (((env).fcr31 >> 23) & 0x1)) 75 #define GET_FP_CAUSE(reg) (((reg) >> 12) & 0x3f) 76 #define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f) 77 #define GET_FP_FLAGS(reg) (((reg) >> 2) & 0x1f) 78 #define SET_FP_CAUSE(reg,v) do { (reg) = ((reg) & ~(0x3f << 12)) | ((v & 0x3f) << 12); } while(0) 79 #define SET_FP_ENABLE(reg,v) do { (reg) = ((reg) & ~(0x1f << 7)) | ((v & 0x1f) << 7); } while(0) 80 #define SET_FP_FLAGS(reg,v) do { (reg) = ((reg) & ~(0x1f << 2)) | ((v & 0x1f) << 2); } while(0) 81 #define UPDATE_FP_FLAGS(reg,v) do { (reg) |= ((v & 0x1f) << 2); } while(0) 82 #define FP_INEXACT 1 83 #define FP_UNDERFLOW 2 84 #define FP_OVERFLOW 4 85 #define FP_DIV0 8 86 #define FP_INVALID 16 87 #define FP_UNIMPLEMENTED 32 88 }; 89 90 #define NB_MMU_MODES 4 91 #define TARGET_INSN_START_EXTRA_WORDS 2 92 93 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext; 94 struct CPUMIPSMVPContext { 95 int32_t CP0_MVPControl; 96 #define CP0MVPCo_CPA 3 97 #define CP0MVPCo_STLB 2 98 #define CP0MVPCo_VPC 1 99 #define CP0MVPCo_EVP 0 100 int32_t CP0_MVPConf0; 101 #define CP0MVPC0_M 31 102 #define CP0MVPC0_TLBS 29 103 #define CP0MVPC0_GS 28 104 #define CP0MVPC0_PCP 27 105 #define CP0MVPC0_PTLBE 16 106 #define CP0MVPC0_TCA 15 107 #define CP0MVPC0_PVPE 10 108 #define CP0MVPC0_PTC 0 109 int32_t CP0_MVPConf1; 110 #define CP0MVPC1_CIM 31 111 #define CP0MVPC1_CIF 30 112 #define CP0MVPC1_PCX 20 113 #define CP0MVPC1_PCP2 10 114 #define CP0MVPC1_PCP1 0 115 }; 116 117 typedef struct mips_def_t mips_def_t; 118 119 #define MIPS_SHADOW_SET_MAX 16 120 #define MIPS_TC_MAX 5 121 #define MIPS_FPU_MAX 1 122 #define MIPS_DSP_ACC 4 123 #define MIPS_KSCRATCH_NUM 6 124 #define MIPS_MAAR_MAX 16 /* Must be an even number. */ 125 126 typedef struct TCState TCState; 127 struct TCState { 128 target_ulong gpr[32]; 129 target_ulong PC; 130 target_ulong HI[MIPS_DSP_ACC]; 131 target_ulong LO[MIPS_DSP_ACC]; 132 target_ulong ACX[MIPS_DSP_ACC]; 133 target_ulong DSPControl; 134 int32_t CP0_TCStatus; 135 #define CP0TCSt_TCU3 31 136 #define CP0TCSt_TCU2 30 137 #define CP0TCSt_TCU1 29 138 #define CP0TCSt_TCU0 28 139 #define CP0TCSt_TMX 27 140 #define CP0TCSt_RNST 23 141 #define CP0TCSt_TDS 21 142 #define CP0TCSt_DT 20 143 #define CP0TCSt_DA 15 144 #define CP0TCSt_A 13 145 #define CP0TCSt_TKSU 11 146 #define CP0TCSt_IXMT 10 147 #define CP0TCSt_TASID 0 148 int32_t CP0_TCBind; 149 #define CP0TCBd_CurTC 21 150 #define CP0TCBd_TBE 17 151 #define CP0TCBd_CurVPE 0 152 target_ulong CP0_TCHalt; 153 target_ulong CP0_TCContext; 154 target_ulong CP0_TCSchedule; 155 target_ulong CP0_TCScheFBack; 156 int32_t CP0_Debug_tcstatus; 157 target_ulong CP0_UserLocal; 158 159 int32_t msacsr; 160 161 #define MSACSR_FS 24 162 #define MSACSR_FS_MASK (1 << MSACSR_FS) 163 #define MSACSR_NX 18 164 #define MSACSR_NX_MASK (1 << MSACSR_NX) 165 #define MSACSR_CEF 2 166 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF) 167 #define MSACSR_RM 0 168 #define MSACSR_RM_MASK (0x3 << MSACSR_RM) 169 #define MSACSR_MASK (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \ 170 MSACSR_FS_MASK) 171 172 float_status msa_fp_status; 173 }; 174 175 typedef struct CPUMIPSState CPUMIPSState; 176 struct CPUMIPSState { 177 TCState active_tc; 178 CPUMIPSFPUContext active_fpu; 179 180 uint32_t current_tc; 181 uint32_t current_fpu; 182 183 uint32_t SEGBITS; 184 uint32_t PABITS; 185 #if defined(TARGET_MIPS64) 186 # define PABITS_BASE 36 187 #else 188 # define PABITS_BASE 32 189 #endif 190 target_ulong SEGMask; 191 uint64_t PAMask; 192 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1) 193 194 int32_t msair; 195 #define MSAIR_ProcID 8 196 #define MSAIR_Rev 0 197 198 int32_t CP0_Index; 199 /* CP0_MVP* are per MVP registers. */ 200 int32_t CP0_VPControl; 201 #define CP0VPCtl_DIS 0 202 int32_t CP0_Random; 203 int32_t CP0_VPEControl; 204 #define CP0VPECo_YSI 21 205 #define CP0VPECo_GSI 20 206 #define CP0VPECo_EXCPT 16 207 #define CP0VPECo_TE 15 208 #define CP0VPECo_TargTC 0 209 int32_t CP0_VPEConf0; 210 #define CP0VPEC0_M 31 211 #define CP0VPEC0_XTC 21 212 #define CP0VPEC0_TCS 19 213 #define CP0VPEC0_SCS 18 214 #define CP0VPEC0_DSC 17 215 #define CP0VPEC0_ICS 16 216 #define CP0VPEC0_MVP 1 217 #define CP0VPEC0_VPA 0 218 int32_t CP0_VPEConf1; 219 #define CP0VPEC1_NCX 20 220 #define CP0VPEC1_NCP2 10 221 #define CP0VPEC1_NCP1 0 222 target_ulong CP0_YQMask; 223 target_ulong CP0_VPESchedule; 224 target_ulong CP0_VPEScheFBack; 225 int32_t CP0_VPEOpt; 226 #define CP0VPEOpt_IWX7 15 227 #define CP0VPEOpt_IWX6 14 228 #define CP0VPEOpt_IWX5 13 229 #define CP0VPEOpt_IWX4 12 230 #define CP0VPEOpt_IWX3 11 231 #define CP0VPEOpt_IWX2 10 232 #define CP0VPEOpt_IWX1 9 233 #define CP0VPEOpt_IWX0 8 234 #define CP0VPEOpt_DWX7 7 235 #define CP0VPEOpt_DWX6 6 236 #define CP0VPEOpt_DWX5 5 237 #define CP0VPEOpt_DWX4 4 238 #define CP0VPEOpt_DWX3 3 239 #define CP0VPEOpt_DWX2 2 240 #define CP0VPEOpt_DWX1 1 241 #define CP0VPEOpt_DWX0 0 242 uint64_t CP0_EntryLo0; 243 uint64_t CP0_EntryLo1; 244 #if defined(TARGET_MIPS64) 245 # define CP0EnLo_RI 63 246 # define CP0EnLo_XI 62 247 #else 248 # define CP0EnLo_RI 31 249 # define CP0EnLo_XI 30 250 #endif 251 int32_t CP0_GlobalNumber; 252 #define CP0GN_VPId 0 253 target_ulong CP0_Context; 254 target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM]; 255 int32_t CP0_PageMask; 256 int32_t CP0_PageGrain_rw_bitmask; 257 int32_t CP0_PageGrain; 258 #define CP0PG_RIE 31 259 #define CP0PG_XIE 30 260 #define CP0PG_ELPA 29 261 #define CP0PG_IEC 27 262 target_ulong CP0_SegCtl0; 263 target_ulong CP0_SegCtl1; 264 target_ulong CP0_SegCtl2; 265 #define CP0SC_PA 9 266 #define CP0SC_PA_MASK (0x7FULL << CP0SC_PA) 267 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA) 268 #define CP0SC_AM 4 269 #define CP0SC_AM_MASK (0x7ULL << CP0SC_AM) 270 #define CP0SC_AM_UK 0ULL 271 #define CP0SC_AM_MK 1ULL 272 #define CP0SC_AM_MSK 2ULL 273 #define CP0SC_AM_MUSK 3ULL 274 #define CP0SC_AM_MUSUK 4ULL 275 #define CP0SC_AM_USK 5ULL 276 #define CP0SC_AM_UUSK 7ULL 277 #define CP0SC_EU 3 278 #define CP0SC_EU_MASK (1ULL << CP0SC_EU) 279 #define CP0SC_C 0 280 #define CP0SC_C_MASK (0x7ULL << CP0SC_C) 281 #define CP0SC_MASK (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \ 282 CP0SC_PA_MASK) 283 #define CP0SC_1GMASK (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \ 284 CP0SC_PA_1GMASK) 285 #define CP0SC0_MASK (CP0SC_MASK | (CP0SC_MASK << 16)) 286 #define CP0SC1_XAM 59 287 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM) 288 #define CP0SC1_MASK (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK) 289 #define CP0SC2_XR 56 290 #define CP0SC2_XR_MASK (0xFFULL << CP0SC2_XR) 291 #define CP0SC2_MASK (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK) 292 int32_t CP0_Wired; 293 int32_t CP0_SRSConf0_rw_bitmask; 294 int32_t CP0_SRSConf0; 295 #define CP0SRSC0_M 31 296 #define CP0SRSC0_SRS3 20 297 #define CP0SRSC0_SRS2 10 298 #define CP0SRSC0_SRS1 0 299 int32_t CP0_SRSConf1_rw_bitmask; 300 int32_t CP0_SRSConf1; 301 #define CP0SRSC1_M 31 302 #define CP0SRSC1_SRS6 20 303 #define CP0SRSC1_SRS5 10 304 #define CP0SRSC1_SRS4 0 305 int32_t CP0_SRSConf2_rw_bitmask; 306 int32_t CP0_SRSConf2; 307 #define CP0SRSC2_M 31 308 #define CP0SRSC2_SRS9 20 309 #define CP0SRSC2_SRS8 10 310 #define CP0SRSC2_SRS7 0 311 int32_t CP0_SRSConf3_rw_bitmask; 312 int32_t CP0_SRSConf3; 313 #define CP0SRSC3_M 31 314 #define CP0SRSC3_SRS12 20 315 #define CP0SRSC3_SRS11 10 316 #define CP0SRSC3_SRS10 0 317 int32_t CP0_SRSConf4_rw_bitmask; 318 int32_t CP0_SRSConf4; 319 #define CP0SRSC4_SRS15 20 320 #define CP0SRSC4_SRS14 10 321 #define CP0SRSC4_SRS13 0 322 int32_t CP0_HWREna; 323 target_ulong CP0_BadVAddr; 324 uint32_t CP0_BadInstr; 325 uint32_t CP0_BadInstrP; 326 int32_t CP0_Count; 327 target_ulong CP0_EntryHi; 328 #define CP0EnHi_EHINV 10 329 target_ulong CP0_EntryHi_ASID_mask; 330 int32_t CP0_Compare; 331 int32_t CP0_Status; 332 #define CP0St_CU3 31 333 #define CP0St_CU2 30 334 #define CP0St_CU1 29 335 #define CP0St_CU0 28 336 #define CP0St_RP 27 337 #define CP0St_FR 26 338 #define CP0St_RE 25 339 #define CP0St_MX 24 340 #define CP0St_PX 23 341 #define CP0St_BEV 22 342 #define CP0St_TS 21 343 #define CP0St_SR 20 344 #define CP0St_NMI 19 345 #define CP0St_IM 8 346 #define CP0St_KX 7 347 #define CP0St_SX 6 348 #define CP0St_UX 5 349 #define CP0St_KSU 3 350 #define CP0St_ERL 2 351 #define CP0St_EXL 1 352 #define CP0St_IE 0 353 int32_t CP0_IntCtl; 354 #define CP0IntCtl_IPTI 29 355 #define CP0IntCtl_IPPCI 26 356 #define CP0IntCtl_VS 5 357 int32_t CP0_SRSCtl; 358 #define CP0SRSCtl_HSS 26 359 #define CP0SRSCtl_EICSS 18 360 #define CP0SRSCtl_ESS 12 361 #define CP0SRSCtl_PSS 6 362 #define CP0SRSCtl_CSS 0 363 int32_t CP0_SRSMap; 364 #define CP0SRSMap_SSV7 28 365 #define CP0SRSMap_SSV6 24 366 #define CP0SRSMap_SSV5 20 367 #define CP0SRSMap_SSV4 16 368 #define CP0SRSMap_SSV3 12 369 #define CP0SRSMap_SSV2 8 370 #define CP0SRSMap_SSV1 4 371 #define CP0SRSMap_SSV0 0 372 int32_t CP0_Cause; 373 #define CP0Ca_BD 31 374 #define CP0Ca_TI 30 375 #define CP0Ca_CE 28 376 #define CP0Ca_DC 27 377 #define CP0Ca_PCI 26 378 #define CP0Ca_IV 23 379 #define CP0Ca_WP 22 380 #define CP0Ca_IP 8 381 #define CP0Ca_IP_mask 0x0000FF00 382 #define CP0Ca_EC 2 383 target_ulong CP0_EPC; 384 int32_t CP0_PRid; 385 target_ulong CP0_EBase; 386 target_ulong CP0_EBaseWG_rw_bitmask; 387 #define CP0EBase_WG 11 388 target_ulong CP0_CMGCRBase; 389 int32_t CP0_Config0; 390 #define CP0C0_M 31 391 #define CP0C0_K23 28 392 #define CP0C0_KU 25 393 #define CP0C0_MDU 20 394 #define CP0C0_MM 18 395 #define CP0C0_BM 16 396 #define CP0C0_BE 15 397 #define CP0C0_AT 13 398 #define CP0C0_AR 10 399 #define CP0C0_MT 7 400 #define CP0C0_VI 3 401 #define CP0C0_K0 0 402 int32_t CP0_Config1; 403 #define CP0C1_M 31 404 #define CP0C1_MMU 25 405 #define CP0C1_IS 22 406 #define CP0C1_IL 19 407 #define CP0C1_IA 16 408 #define CP0C1_DS 13 409 #define CP0C1_DL 10 410 #define CP0C1_DA 7 411 #define CP0C1_C2 6 412 #define CP0C1_MD 5 413 #define CP0C1_PC 4 414 #define CP0C1_WR 3 415 #define CP0C1_CA 2 416 #define CP0C1_EP 1 417 #define CP0C1_FP 0 418 int32_t CP0_Config2; 419 #define CP0C2_M 31 420 #define CP0C2_TU 28 421 #define CP0C2_TS 24 422 #define CP0C2_TL 20 423 #define CP0C2_TA 16 424 #define CP0C2_SU 12 425 #define CP0C2_SS 8 426 #define CP0C2_SL 4 427 #define CP0C2_SA 0 428 int32_t CP0_Config3; 429 #define CP0C3_M 31 430 #define CP0C3_BPG 30 431 #define CP0C3_CMGCR 29 432 #define CP0C3_MSAP 28 433 #define CP0C3_BP 27 434 #define CP0C3_BI 26 435 #define CP0C3_SC 25 436 #define CP0C3_IPLW 21 437 #define CP0C3_MMAR 18 438 #define CP0C3_MCU 17 439 #define CP0C3_ISA_ON_EXC 16 440 #define CP0C3_ISA 14 441 #define CP0C3_ULRI 13 442 #define CP0C3_RXI 12 443 #define CP0C3_DSP2P 11 444 #define CP0C3_DSPP 10 445 #define CP0C3_LPA 7 446 #define CP0C3_VEIC 6 447 #define CP0C3_VInt 5 448 #define CP0C3_SP 4 449 #define CP0C3_CDMM 3 450 #define CP0C3_MT 2 451 #define CP0C3_SM 1 452 #define CP0C3_TL 0 453 int32_t CP0_Config4; 454 int32_t CP0_Config4_rw_bitmask; 455 #define CP0C4_M 31 456 #define CP0C4_IE 29 457 #define CP0C4_AE 28 458 #define CP0C4_KScrExist 16 459 #define CP0C4_MMUExtDef 14 460 #define CP0C4_FTLBPageSize 8 461 #define CP0C4_FTLBWays 4 462 #define CP0C4_FTLBSets 0 463 #define CP0C4_MMUSizeExt 0 464 int32_t CP0_Config5; 465 int32_t CP0_Config5_rw_bitmask; 466 #define CP0C5_M 31 467 #define CP0C5_K 30 468 #define CP0C5_CV 29 469 #define CP0C5_EVA 28 470 #define CP0C5_MSAEn 27 471 #define CP0C5_XNP 13 472 #define CP0C5_UFE 9 473 #define CP0C5_FRE 8 474 #define CP0C5_VP 7 475 #define CP0C5_SBRI 6 476 #define CP0C5_MVH 5 477 #define CP0C5_LLB 4 478 #define CP0C5_MRP 3 479 #define CP0C5_UFR 2 480 #define CP0C5_NFExists 0 481 int32_t CP0_Config6; 482 int32_t CP0_Config7; 483 uint64_t CP0_MAAR[MIPS_MAAR_MAX]; 484 int32_t CP0_MAARI; 485 /* XXX: Maybe make LLAddr per-TC? */ 486 uint64_t lladdr; 487 target_ulong llval; 488 target_ulong llnewval; 489 target_ulong llreg; 490 uint64_t CP0_LLAddr_rw_bitmask; 491 int CP0_LLAddr_shift; 492 target_ulong CP0_WatchLo[8]; 493 int32_t CP0_WatchHi[8]; 494 #define CP0WH_ASID 16 495 target_ulong CP0_XContext; 496 int32_t CP0_Framemask; 497 int32_t CP0_Debug; 498 #define CP0DB_DBD 31 499 #define CP0DB_DM 30 500 #define CP0DB_LSNM 28 501 #define CP0DB_Doze 27 502 #define CP0DB_Halt 26 503 #define CP0DB_CNT 25 504 #define CP0DB_IBEP 24 505 #define CP0DB_DBEP 21 506 #define CP0DB_IEXI 20 507 #define CP0DB_VER 15 508 #define CP0DB_DEC 10 509 #define CP0DB_SSt 8 510 #define CP0DB_DINT 5 511 #define CP0DB_DIB 4 512 #define CP0DB_DDBS 3 513 #define CP0DB_DDBL 2 514 #define CP0DB_DBp 1 515 #define CP0DB_DSS 0 516 target_ulong CP0_DEPC; 517 int32_t CP0_Performance0; 518 int32_t CP0_ErrCtl; 519 #define CP0EC_WST 29 520 #define CP0EC_SPR 28 521 #define CP0EC_ITC 26 522 uint64_t CP0_TagLo; 523 int32_t CP0_DataLo; 524 int32_t CP0_TagHi; 525 int32_t CP0_DataHi; 526 target_ulong CP0_ErrorEPC; 527 int32_t CP0_DESAVE; 528 /* We waste some space so we can handle shadow registers like TCs. */ 529 TCState tcs[MIPS_SHADOW_SET_MAX]; 530 CPUMIPSFPUContext fpus[MIPS_FPU_MAX]; 531 /* QEMU */ 532 int error_code; 533 #define EXCP_TLB_NOMATCH 0x1 534 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */ 535 uint32_t hflags; /* CPU State */ 536 /* TMASK defines different execution modes */ 537 #define MIPS_HFLAG_TMASK 0x1F5807FF 538 #define MIPS_HFLAG_MODE 0x00007 /* execution modes */ 539 /* The KSU flags must be the lowest bits in hflags. The flag order 540 must be the same as defined for CP0 Status. This allows to use 541 the bits as the value of mmu_idx. */ 542 #define MIPS_HFLAG_KSU 0x00003 /* kernel/supervisor/user mode mask */ 543 #define MIPS_HFLAG_UM 0x00002 /* user mode flag */ 544 #define MIPS_HFLAG_SM 0x00001 /* supervisor mode flag */ 545 #define MIPS_HFLAG_KM 0x00000 /* kernel mode flag */ 546 #define MIPS_HFLAG_DM 0x00004 /* Debug mode */ 547 #define MIPS_HFLAG_64 0x00008 /* 64-bit instructions enabled */ 548 #define MIPS_HFLAG_CP0 0x00010 /* CP0 enabled */ 549 #define MIPS_HFLAG_FPU 0x00020 /* FPU enabled */ 550 #define MIPS_HFLAG_F64 0x00040 /* 64-bit FPU enabled */ 551 /* True if the MIPS IV COP1X instructions can be used. This also 552 controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S 553 and RSQRT.D. */ 554 #define MIPS_HFLAG_COP1X 0x00080 /* COP1X instructions enabled */ 555 #define MIPS_HFLAG_RE 0x00100 /* Reversed endianness */ 556 #define MIPS_HFLAG_AWRAP 0x00200 /* 32-bit compatibility address wrapping */ 557 #define MIPS_HFLAG_M16 0x00400 /* MIPS16 mode flag */ 558 #define MIPS_HFLAG_M16_SHIFT 10 559 /* If translation is interrupted between the branch instruction and 560 * the delay slot, record what type of branch it is so that we can 561 * resume translation properly. It might be possible to reduce 562 * this from three bits to two. */ 563 #define MIPS_HFLAG_BMASK_BASE 0x803800 564 #define MIPS_HFLAG_B 0x00800 /* Unconditional branch */ 565 #define MIPS_HFLAG_BC 0x01000 /* Conditional branch */ 566 #define MIPS_HFLAG_BL 0x01800 /* Likely branch */ 567 #define MIPS_HFLAG_BR 0x02000 /* branch to register (can't link TB) */ 568 /* Extra flags about the current pending branch. */ 569 #define MIPS_HFLAG_BMASK_EXT 0x7C000 570 #define MIPS_HFLAG_B16 0x04000 /* branch instruction was 16 bits */ 571 #define MIPS_HFLAG_BDS16 0x08000 /* branch requires 16-bit delay slot */ 572 #define MIPS_HFLAG_BDS32 0x10000 /* branch requires 32-bit delay slot */ 573 #define MIPS_HFLAG_BDS_STRICT 0x20000 /* Strict delay slot size */ 574 #define MIPS_HFLAG_BX 0x40000 /* branch exchanges execution mode */ 575 #define MIPS_HFLAG_BMASK (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT) 576 /* MIPS DSP resources access. */ 577 #define MIPS_HFLAG_DSP 0x080000 /* Enable access to MIPS DSP resources. */ 578 #define MIPS_HFLAG_DSPR2 0x100000 /* Enable access to MIPS DSPR2 resources. */ 579 /* Extra flag about HWREna register. */ 580 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */ 581 #define MIPS_HFLAG_SBRI 0x400000 /* R6 SDBBP causes RI excpt. in user mode */ 582 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot */ 583 #define MIPS_HFLAG_MSA 0x1000000 584 #define MIPS_HFLAG_FRE 0x2000000 /* FRE enabled */ 585 #define MIPS_HFLAG_ELPA 0x4000000 586 #define MIPS_HFLAG_ITC_CACHE 0x8000000 /* CACHE instr. operates on ITC tag */ 587 #define MIPS_HFLAG_ERL 0x10000000 /* error level flag */ 588 target_ulong btarget; /* Jump / branch target */ 589 target_ulong bcond; /* Branch condition (if needed) */ 590 591 int SYNCI_Step; /* Address step size for SYNCI */ 592 int CCRes; /* Cycle count resolution/divisor */ 593 uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */ 594 uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */ 595 int insn_flags; /* Supported instruction set */ 596 597 /* Fields up to this point are cleared by a CPU reset */ 598 struct {} end_reset_fields; 599 600 CPU_COMMON 601 602 /* Fields from here on are preserved across CPU reset. */ 603 CPUMIPSMVPContext *mvp; 604 #if !defined(CONFIG_USER_ONLY) 605 CPUMIPSTLBContext *tlb; 606 #endif 607 608 const mips_def_t *cpu_model; 609 void *irq[8]; 610 QEMUTimer *timer; /* Internal timer */ 611 MemoryRegion *itc_tag; /* ITC Configuration Tags */ 612 target_ulong exception_base; /* ExceptionBase input to the core */ 613 }; 614 615 /** 616 * MIPSCPU: 617 * @env: #CPUMIPSState 618 * 619 * A MIPS CPU. 620 */ 621 struct MIPSCPU { 622 /*< private >*/ 623 CPUState parent_obj; 624 /*< public >*/ 625 626 CPUMIPSState env; 627 }; 628 629 static inline MIPSCPU *mips_env_get_cpu(CPUMIPSState *env) 630 { 631 return container_of(env, MIPSCPU, env); 632 } 633 634 #define ENV_GET_CPU(e) CPU(mips_env_get_cpu(e)) 635 636 #define ENV_OFFSET offsetof(MIPSCPU, env) 637 638 void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf); 639 640 #define cpu_signal_handler cpu_mips_signal_handler 641 #define cpu_list mips_cpu_list 642 643 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env); 644 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env); 645 646 /* MMU modes definitions. We carefully match the indices with our 647 hflags layout. */ 648 #define MMU_MODE0_SUFFIX _kernel 649 #define MMU_MODE1_SUFFIX _super 650 #define MMU_MODE2_SUFFIX _user 651 #define MMU_MODE3_SUFFIX _error 652 #define MMU_USER_IDX 2 653 654 static inline int hflags_mmu_index(uint32_t hflags) 655 { 656 if (hflags & MIPS_HFLAG_ERL) { 657 return 3; /* ERL */ 658 } else { 659 return hflags & MIPS_HFLAG_KSU; 660 } 661 } 662 663 static inline int cpu_mmu_index (CPUMIPSState *env, bool ifetch) 664 { 665 return hflags_mmu_index(env->hflags); 666 } 667 668 #include "exec/cpu-all.h" 669 670 /* Memory access type : 671 * may be needed for precise access rights control and precise exceptions. 672 */ 673 enum { 674 /* 1 bit to define user level / supervisor access */ 675 ACCESS_USER = 0x00, 676 ACCESS_SUPER = 0x01, 677 /* 1 bit to indicate direction */ 678 ACCESS_STORE = 0x02, 679 /* Type of instruction that generated the access */ 680 ACCESS_CODE = 0x10, /* Code fetch access */ 681 ACCESS_INT = 0x20, /* Integer load/store access */ 682 ACCESS_FLOAT = 0x30, /* floating point load/store access */ 683 }; 684 685 /* Exceptions */ 686 enum { 687 EXCP_NONE = -1, 688 EXCP_RESET = 0, 689 EXCP_SRESET, 690 EXCP_DSS, 691 EXCP_DINT, 692 EXCP_DDBL, 693 EXCP_DDBS, 694 EXCP_NMI, 695 EXCP_MCHECK, 696 EXCP_EXT_INTERRUPT, /* 8 */ 697 EXCP_DFWATCH, 698 EXCP_DIB, 699 EXCP_IWATCH, 700 EXCP_AdEL, 701 EXCP_AdES, 702 EXCP_TLBF, 703 EXCP_IBE, 704 EXCP_DBp, /* 16 */ 705 EXCP_SYSCALL, 706 EXCP_BREAK, 707 EXCP_CpU, 708 EXCP_RI, 709 EXCP_OVERFLOW, 710 EXCP_TRAP, 711 EXCP_FPE, 712 EXCP_DWATCH, /* 24 */ 713 EXCP_LTLBL, 714 EXCP_TLBL, 715 EXCP_TLBS, 716 EXCP_DBE, 717 EXCP_THREAD, 718 EXCP_MDMX, 719 EXCP_C2E, 720 EXCP_CACHE, /* 32 */ 721 EXCP_DSPDIS, 722 EXCP_MSADIS, 723 EXCP_MSAFPE, 724 EXCP_TLBXI, 725 EXCP_TLBRI, 726 727 EXCP_LAST = EXCP_TLBRI, 728 }; 729 /* Dummy exception for conditional stores. */ 730 #define EXCP_SC 0x100 731 732 /* 733 * This is an internally generated WAKE request line. 734 * It is driven by the CPU itself. Raised when the MT 735 * block wants to wake a VPE from an inactive state and 736 * cleared when VPE goes from active to inactive. 737 */ 738 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0 739 740 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc); 741 742 #define cpu_init(cpu_model) cpu_generic_init(TYPE_MIPS_CPU, cpu_model) 743 744 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU 745 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX 746 747 bool cpu_supports_cps_smp(const char *cpu_type); 748 bool cpu_supports_isa(const char *cpu_type, unsigned int isa); 749 void cpu_set_exception_base(int vp_index, target_ulong address); 750 751 /* mips_int.c */ 752 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level); 753 754 /* helper.c */ 755 target_ulong exception_resume_pc (CPUMIPSState *env); 756 757 static inline void restore_snan_bit_mode(CPUMIPSState *env) 758 { 759 set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) == 0, 760 &env->active_fpu.fp_status); 761 } 762 763 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc, 764 target_ulong *cs_base, uint32_t *flags) 765 { 766 *pc = env->active_tc.PC; 767 *cs_base = 0; 768 *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK | 769 MIPS_HFLAG_HWRENA_ULR); 770 } 771 772 #endif /* MIPS_CPU_H */ 773