target/mips/cpu.h

   1 #ifndef MIPS_CPU_H
   2 #define MIPS_CPU_H
   3
   4 #include "cpu-qom.h"
   5 #include "exec/cpu-defs.h"
   6 #ifndef CONFIG_USER_ONLY
   7 #include "exec/memory.h"
   8 #endif
   9 #include "fpu/softfloat-types.h"
  10 #include "hw/clock.h"
  11 #include "mips-defs.h"
  12
  13 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
  14
  15 /* MSA Context */
  16 #define MSA_WRLEN (128)
  17
  18 typedef union wr_t wr_t;
  19 union wr_t {
  20     int8_t  b[MSA_WRLEN / 8];
  21     int16_t h[MSA_WRLEN / 16];
  22     int32_t w[MSA_WRLEN / 32];
  23     int64_t d[MSA_WRLEN / 64];
  24 };
  25
  26 typedef union fpr_t fpr_t;
  27 union fpr_t {
  28     float64  fd;   /* ieee double precision */
  29     float32  fs[2];/* ieee single precision */
  30     uint64_t d;    /* binary double fixed-point */
  31     uint32_t w[2]; /* binary single fixed-point */
  32 /* FPU/MSA register mapping is not tested on big-endian hosts. */
  33     wr_t     wr;   /* vector data */
  34 };
  35 /*
  36  *define FP_ENDIAN_IDX to access the same location
  37  * in the fpr_t union regardless of the host endianness
  38  */
  39 #if HOST_BIG_ENDIAN
  40 #  define FP_ENDIAN_IDX 1
  41 #else
  42 #  define FP_ENDIAN_IDX 0
  43 #endif
  44
  45 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
  46 struct CPUMIPSFPUContext {
  47     /* Floating point registers */
  48     fpr_t fpr[32];
  49     float_status fp_status;
  50     /* fpu implementation/revision register (fir) */
  51     uint32_t fcr0;
  52 #define FCR0_FREP 29
  53 #define FCR0_UFRP 28
  54 #define FCR0_HAS2008 23
  55 #define FCR0_F64 22
  56 #define FCR0_L 21
  57 #define FCR0_W 20
  58 #define FCR0_3D 19
  59 #define FCR0_PS 18
  60 #define FCR0_D 17
  61 #define FCR0_S 16
  62 #define FCR0_PRID 8
  63 #define FCR0_REV 0
  64     /* fcsr */
  65     uint32_t fcr31_rw_bitmask;
  66     uint32_t fcr31;
  67 #define FCR31_FS 24
  68 #define FCR31_ABS2008 19
  69 #define FCR31_NAN2008 18
  70 #define SET_FP_COND(num, env)     do { ((env).fcr31) |=                 \
  71                                        ((num) ? (1 << ((num) + 24)) :   \
  72                                                 (1 << 23));             \
  73                                      } while (0)
  74 #define CLEAR_FP_COND(num, env)   do { ((env).fcr31) &=                 \
  75                                        ~((num) ? (1 << ((num) + 24)) :  \
  76                                                  (1 << 23));            \
  77                                      } while (0)
  78 #define GET_FP_COND(env)         ((((env).fcr31 >> 24) & 0xfe) |        \
  79                                  (((env).fcr31 >> 23) & 0x1))
  80 #define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
  81 #define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
  82 #define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
  83 #define SET_FP_CAUSE(reg, v)      do { (reg) = ((reg) & ~(0x3f << 12)) | \
  84                                                ((v & 0x3f) << 12);       \
  85                                      } while (0)
  86 #define SET_FP_ENABLE(reg, v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | \
  87                                                ((v & 0x1f) << 7);        \
  88                                      } while (0)
  89 #define SET_FP_FLAGS(reg, v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | \
  90                                                ((v & 0x1f) << 2);        \
  91                                      } while (0)
  92 #define UPDATE_FP_FLAGS(reg, v)   do { (reg) |= ((v & 0x1f) << 2); } while (0)
  93 #define FP_INEXACT        1
  94 #define FP_UNDERFLOW      2
  95 #define FP_OVERFLOW       4
  96 #define FP_DIV0           8
  97 #define FP_INVALID        16
  98 #define FP_UNIMPLEMENTED  32
  99 };
 100
 101 #define TARGET_INSN_START_EXTRA_WORDS 2
 102
 103 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
 104 struct CPUMIPSMVPContext {
 105     int32_t CP0_MVPControl;
 106 #define CP0MVPCo_CPA    3
 107 #define CP0MVPCo_STLB   2
 108 #define CP0MVPCo_VPC    1
 109 #define CP0MVPCo_EVP    0
 110     int32_t CP0_MVPConf0;
 111 #define CP0MVPC0_M      31
 112 #define CP0MVPC0_TLBS   29
 113 #define CP0MVPC0_GS     28
 114 #define CP0MVPC0_PCP    27
 115 #define CP0MVPC0_PTLBE  16
 116 #define CP0MVPC0_TCA    15
 117 #define CP0MVPC0_PVPE   10
 118 #define CP0MVPC0_PTC    0
 119     int32_t CP0_MVPConf1;
 120 #define CP0MVPC1_CIM    31
 121 #define CP0MVPC1_CIF    30
 122 #define CP0MVPC1_PCX    20
 123 #define CP0MVPC1_PCP2   10
 124 #define CP0MVPC1_PCP1   0
 125 };
 126
 127 typedef struct mips_def_t mips_def_t;
 128
 129 #define MIPS_SHADOW_SET_MAX 16
 130 #define MIPS_TC_MAX 5
 131 #define MIPS_FPU_MAX 1
 132 #define MIPS_DSP_ACC 4
 133 #define MIPS_KSCRATCH_NUM 6
 134 #define MIPS_MAAR_MAX 16 /* Must be an even number. */
 135
 136
 137 /*
 138  *     Summary of CP0 registers
 139  *     ========================
 140  *
 141  *
 142  *     Register 0        Register 1        Register 2        Register 3
 143  *     ----------        ----------        ----------        ----------
 144  *
 145  * 0   Index             Random            EntryLo0          EntryLo1
 146  * 1   MVPControl        VPEControl        TCStatus          GlobalNumber
 147  * 2   MVPConf0          VPEConf0          TCBind
 148  * 3   MVPConf1          VPEConf1          TCRestart
 149  * 4   VPControl         YQMask            TCHalt
 150  * 5                     VPESchedule       TCContext
 151  * 6                     VPEScheFBack      TCSchedule
 152  * 7                     VPEOpt            TCScheFBack       TCOpt
 153  *
 154  *
 155  *     Register 4        Register 5        Register 6        Register 7
 156  *     ----------        ----------        ----------        ----------
 157  *
 158  * 0   Context           PageMask          Wired             HWREna
 159  * 1   ContextConfig     PageGrain         SRSConf0
 160  * 2   UserLocal         SegCtl0           SRSConf1
 161  * 3   XContextConfig    SegCtl1           SRSConf2
 162  * 4   DebugContextID    SegCtl2           SRSConf3
 163  * 5   MemoryMapID       PWBase            SRSConf4
 164  * 6                     PWField           PWCtl
 165  * 7                     PWSize
 166  *
 167  *
 168  *     Register 8        Register 9        Register 10       Register 11
 169  *     ----------        ----------        -----------       -----------
 170  *
 171  * 0   BadVAddr          Count             EntryHi           Compare
 172  * 1   BadInstr
 173  * 2   BadInstrP
 174  * 3   BadInstrX
 175  * 4                                       GuestCtl1         GuestCtl0Ext
 176  * 5                                       GuestCtl2
 177  * 6                     SAARI             GuestCtl3
 178  * 7                     SAAR
 179  *
 180  *
 181  *     Register 12       Register 13       Register 14       Register 15
 182  *     -----------       -----------       -----------       -----------
 183  *
 184  * 0   Status            Cause             EPC               PRId
 185  * 1   IntCtl                                                EBase
 186  * 2   SRSCtl                              NestedEPC         CDMMBase
 187  * 3   SRSMap                                                CMGCRBase
 188  * 4   View_IPL          View_RIPL                           BEVVA
 189  * 5   SRSMap2           NestedExc
 190  * 6   GuestCtl0
 191  * 7   GTOffset
 192  *
 193  *
 194  *     Register 16       Register 17       Register 18       Register 19
 195  *     -----------       -----------       -----------       -----------
 196  *
 197  * 0   Config            LLAddr            WatchLo0          WatchHi
 198  * 1   Config1           MAAR              WatchLo1          WatchHi
 199  * 2   Config2           MAARI             WatchLo2          WatchHi
 200  * 3   Config3                             WatchLo3          WatchHi
 201  * 4   Config4                             WatchLo4          WatchHi
 202  * 5   Config5                             WatchLo5          WatchHi
 203  * 6   Config6                             WatchLo6          WatchHi
 204  * 7   Config7                             WatchLo7          WatchHi
 205  *
 206  *
 207  *     Register 20       Register 21       Register 22       Register 23
 208  *     -----------       -----------       -----------       -----------
 209  *
 210  * 0   XContext                                              Debug
 211  * 1                                                         TraceControl
 212  * 2                                                         TraceControl2
 213  * 3                                                         UserTraceData1
 214  * 4                                                         TraceIBPC
 215  * 5                                                         TraceDBPC
 216  * 6                                                         Debug2
 217  * 7
 218  *
 219  *
 220  *     Register 24       Register 25       Register 26       Register 27
 221  *     -----------       -----------       -----------       -----------
 222  *
 223  * 0   DEPC              PerfCnt            ErrCtl          CacheErr
 224  * 1                     PerfCnt
 225  * 2   TraceControl3     PerfCnt
 226  * 3   UserTraceData2    PerfCnt
 227  * 4                     PerfCnt
 228  * 5                     PerfCnt
 229  * 6                     PerfCnt
 230  * 7                     PerfCnt
 231  *
 232  *
 233  *     Register 28       Register 29       Register 30       Register 31
 234  *     -----------       -----------       -----------       -----------
 235  *
 236  * 0   DataLo            DataHi            ErrorEPC          DESAVE
 237  * 1   TagLo             TagHi
 238  * 2   DataLo1           DataHi1                             KScratch<n>
 239  * 3   TagLo1            TagHi1                              KScratch<n>
 240  * 4   DataLo2           DataHi2                             KScratch<n>
 241  * 5   TagLo2            TagHi2                              KScratch<n>
 242  * 6   DataLo3           DataHi3                             KScratch<n>
 243  * 7   TagLo3            TagHi3                              KScratch<n>
 244  *
 245  */
 246 #define CP0_REGISTER_00     0
 247 #define CP0_REGISTER_01     1
 248 #define CP0_REGISTER_02     2
 249 #define CP0_REGISTER_03     3
 250 #define CP0_REGISTER_04     4
 251 #define CP0_REGISTER_05     5
 252 #define CP0_REGISTER_06     6
 253 #define CP0_REGISTER_07     7
 254 #define CP0_REGISTER_08     8
 255 #define CP0_REGISTER_09     9
 256 #define CP0_REGISTER_10    10
 257 #define CP0_REGISTER_11    11
 258 #define CP0_REGISTER_12    12
 259 #define CP0_REGISTER_13    13
 260 #define CP0_REGISTER_14    14
 261 #define CP0_REGISTER_15    15
 262 #define CP0_REGISTER_16    16
 263 #define CP0_REGISTER_17    17
 264 #define CP0_REGISTER_18    18
 265 #define CP0_REGISTER_19    19
 266 #define CP0_REGISTER_20    20
 267 #define CP0_REGISTER_21    21
 268 #define CP0_REGISTER_22    22
 269 #define CP0_REGISTER_23    23
 270 #define CP0_REGISTER_24    24
 271 #define CP0_REGISTER_25    25
 272 #define CP0_REGISTER_26    26
 273 #define CP0_REGISTER_27    27
 274 #define CP0_REGISTER_28    28
 275 #define CP0_REGISTER_29    29
 276 #define CP0_REGISTER_30    30
 277 #define CP0_REGISTER_31    31
 278
 279
 280 /* CP0 Register 00 */
 281 #define CP0_REG00__INDEX           0
 282 #define CP0_REG00__MVPCONTROL      1
 283 #define CP0_REG00__MVPCONF0        2
 284 #define CP0_REG00__MVPCONF1        3
 285 #define CP0_REG00__VPCONTROL       4
 286 /* CP0 Register 01 */
 287 #define CP0_REG01__RANDOM          0
 288 #define CP0_REG01__VPECONTROL      1
 289 #define CP0_REG01__VPECONF0        2
 290 #define CP0_REG01__VPECONF1        3
 291 #define CP0_REG01__YQMASK          4
 292 #define CP0_REG01__VPESCHEDULE     5
 293 #define CP0_REG01__VPESCHEFBACK    6
 294 #define CP0_REG01__VPEOPT          7
 295 /* CP0 Register 02 */
 296 #define CP0_REG02__ENTRYLO0        0
 297 #define CP0_REG02__TCSTATUS        1
 298 #define CP0_REG02__TCBIND          2
 299 #define CP0_REG02__TCRESTART       3
 300 #define CP0_REG02__TCHALT          4
 301 #define CP0_REG02__TCCONTEXT       5
 302 #define CP0_REG02__TCSCHEDULE      6
 303 #define CP0_REG02__TCSCHEFBACK     7
 304 /* CP0 Register 03 */
 305 #define CP0_REG03__ENTRYLO1        0
 306 #define CP0_REG03__GLOBALNUM       1
 307 #define CP0_REG03__TCOPT           7
 308 /* CP0 Register 04 */
 309 #define CP0_REG04__CONTEXT         0
 310 #define CP0_REG04__CONTEXTCONFIG   1
 311 #define CP0_REG04__USERLOCAL       2
 312 #define CP0_REG04__XCONTEXTCONFIG  3
 313 #define CP0_REG04__DBGCONTEXTID    4
 314 #define CP0_REG04__MMID            5
 315 /* CP0 Register 05 */
 316 #define CP0_REG05__PAGEMASK        0
 317 #define CP0_REG05__PAGEGRAIN       1
 318 #define CP0_REG05__SEGCTL0         2
 319 #define CP0_REG05__SEGCTL1         3
 320 #define CP0_REG05__SEGCTL2         4
 321 #define CP0_REG05__PWBASE          5
 322 #define CP0_REG05__PWFIELD         6
 323 #define CP0_REG05__PWSIZE          7
 324 /* CP0 Register 06 */
 325 #define CP0_REG06__WIRED           0
 326 #define CP0_REG06__SRSCONF0        1
 327 #define CP0_REG06__SRSCONF1        2
 328 #define CP0_REG06__SRSCONF2        3
 329 #define CP0_REG06__SRSCONF3        4
 330 #define CP0_REG06__SRSCONF4        5
 331 #define CP0_REG06__PWCTL           6
 332 /* CP0 Register 07 */
 333 #define CP0_REG07__HWRENA          0
 334 /* CP0 Register 08 */
 335 #define CP0_REG08__BADVADDR        0
 336 #define CP0_REG08__BADINSTR        1
 337 #define CP0_REG08__BADINSTRP       2
 338 #define CP0_REG08__BADINSTRX       3
 339 /* CP0 Register 09 */
 340 #define CP0_REG09__COUNT           0
 341 #define CP0_REG09__SAARI           6
 342 #define CP0_REG09__SAAR            7
 343 /* CP0 Register 10 */
 344 #define CP0_REG10__ENTRYHI         0
 345 #define CP0_REG10__GUESTCTL1       4
 346 #define CP0_REG10__GUESTCTL2       5
 347 #define CP0_REG10__GUESTCTL3       6
 348 /* CP0 Register 11 */
 349 #define CP0_REG11__COMPARE         0
 350 #define CP0_REG11__GUESTCTL0EXT    4
 351 /* CP0 Register 12 */
 352 #define CP0_REG12__STATUS          0
 353 #define CP0_REG12__INTCTL          1
 354 #define CP0_REG12__SRSCTL          2
 355 #define CP0_REG12__SRSMAP          3
 356 #define CP0_REG12__VIEW_IPL        4
 357 #define CP0_REG12__SRSMAP2         5
 358 #define CP0_REG12__GUESTCTL0       6
 359 #define CP0_REG12__GTOFFSET        7
 360 /* CP0 Register 13 */
 361 #define CP0_REG13__CAUSE           0
 362 #define CP0_REG13__VIEW_RIPL       4
 363 #define CP0_REG13__NESTEDEXC       5
 364 /* CP0 Register 14 */
 365 #define CP0_REG14__EPC             0
 366 #define CP0_REG14__NESTEDEPC       2
 367 /* CP0 Register 15 */
 368 #define CP0_REG15__PRID            0
 369 #define CP0_REG15__EBASE           1
 370 #define CP0_REG15__CDMMBASE        2
 371 #define CP0_REG15__CMGCRBASE       3
 372 #define CP0_REG15__BEVVA           4
 373 /* CP0 Register 16 */
 374 #define CP0_REG16__CONFIG          0
 375 #define CP0_REG16__CONFIG1         1
 376 #define CP0_REG16__CONFIG2         2
 377 #define CP0_REG16__CONFIG3         3
 378 #define CP0_REG16__CONFIG4         4
 379 #define CP0_REG16__CONFIG5         5
 380 #define CP0_REG16__CONFIG6         6
 381 #define CP0_REG16__CONFIG7         7
 382 /* CP0 Register 17 */
 383 #define CP0_REG17__LLADDR          0
 384 #define CP0_REG17__MAAR            1
 385 #define CP0_REG17__MAARI           2
 386 /* CP0 Register 18 */
 387 #define CP0_REG18__WATCHLO0        0
 388 #define CP0_REG18__WATCHLO1        1
 389 #define CP0_REG18__WATCHLO2        2
 390 #define CP0_REG18__WATCHLO3        3
 391 #define CP0_REG18__WATCHLO4        4
 392 #define CP0_REG18__WATCHLO5        5
 393 #define CP0_REG18__WATCHLO6        6
 394 #define CP0_REG18__WATCHLO7        7
 395 /* CP0 Register 19 */
 396 #define CP0_REG19__WATCHHI0        0
 397 #define CP0_REG19__WATCHHI1        1
 398 #define CP0_REG19__WATCHHI2        2
 399 #define CP0_REG19__WATCHHI3        3
 400 #define CP0_REG19__WATCHHI4        4
 401 #define CP0_REG19__WATCHHI5        5
 402 #define CP0_REG19__WATCHHI6        6
 403 #define CP0_REG19__WATCHHI7        7
 404 /* CP0 Register 20 */
 405 #define CP0_REG20__XCONTEXT        0
 406 /* CP0 Register 21 */
 407 /* CP0 Register 22 */
 408 /* CP0 Register 23 */
 409 #define CP0_REG23__DEBUG           0
 410 #define CP0_REG23__TRACECONTROL    1
 411 #define CP0_REG23__TRACECONTROL2   2
 412 #define CP0_REG23__USERTRACEDATA1  3
 413 #define CP0_REG23__TRACEIBPC       4
 414 #define CP0_REG23__TRACEDBPC       5
 415 #define CP0_REG23__DEBUG2          6
 416 /* CP0 Register 24 */
 417 #define CP0_REG24__DEPC            0
 418 /* CP0 Register 25 */
 419 #define CP0_REG25__PERFCTL0        0
 420 #define CP0_REG25__PERFCNT0        1
 421 #define CP0_REG25__PERFCTL1        2
 422 #define CP0_REG25__PERFCNT1        3
 423 #define CP0_REG25__PERFCTL2        4
 424 #define CP0_REG25__PERFCNT2        5
 425 #define CP0_REG25__PERFCTL3        6
 426 #define CP0_REG25__PERFCNT3        7
 427 /* CP0 Register 26 */
 428 #define CP0_REG26__ERRCTL          0
 429 /* CP0 Register 27 */
 430 #define CP0_REG27__CACHERR         0
 431 /* CP0 Register 28 */
 432 #define CP0_REG28__TAGLO           0
 433 #define CP0_REG28__DATALO          1
 434 #define CP0_REG28__TAGLO1          2
 435 #define CP0_REG28__DATALO1         3
 436 #define CP0_REG28__TAGLO2          4
 437 #define CP0_REG28__DATALO2         5
 438 #define CP0_REG28__TAGLO3          6
 439 #define CP0_REG28__DATALO3         7
 440 /* CP0 Register 29 */
 441 #define CP0_REG29__TAGHI           0
 442 #define CP0_REG29__DATAHI          1
 443 #define CP0_REG29__TAGHI1          2
 444 #define CP0_REG29__DATAHI1         3
 445 #define CP0_REG29__TAGHI2          4
 446 #define CP0_REG29__DATAHI2         5
 447 #define CP0_REG29__TAGHI3          6
 448 #define CP0_REG29__DATAHI3         7
 449 /* CP0 Register 30 */
 450 #define CP0_REG30__ERROREPC        0
 451 /* CP0 Register 31 */
 452 #define CP0_REG31__DESAVE          0
 453 #define CP0_REG31__KSCRATCH1       2
 454 #define CP0_REG31__KSCRATCH2       3
 455 #define CP0_REG31__KSCRATCH3       4
 456 #define CP0_REG31__KSCRATCH4       5
 457 #define CP0_REG31__KSCRATCH5       6
 458 #define CP0_REG31__KSCRATCH6       7
 459
 460
 461 typedef struct TCState TCState;
 462 struct TCState {
 463     target_ulong gpr[32];
 464 #if defined(TARGET_MIPS64)
 465     /*
 466      * For CPUs using 128-bit GPR registers, we put the lower halves in gpr[])
 467      * and the upper halves in gpr_hi[].
 468      */
 469     uint64_t gpr_hi[32];
 470 #endif /* TARGET_MIPS64 */
 471     target_ulong PC;
 472     target_ulong HI[MIPS_DSP_ACC];
 473     target_ulong LO[MIPS_DSP_ACC];
 474     target_ulong ACX[MIPS_DSP_ACC];
 475     target_ulong DSPControl;
 476     int32_t CP0_TCStatus;
 477 #define CP0TCSt_TCU3    31
 478 #define CP0TCSt_TCU2    30
 479 #define CP0TCSt_TCU1    29
 480 #define CP0TCSt_TCU0    28
 481 #define CP0TCSt_TMX     27
 482 #define CP0TCSt_RNST    23
 483 #define CP0TCSt_TDS     21
 484 #define CP0TCSt_DT      20
 485 #define CP0TCSt_DA      15
 486 #define CP0TCSt_A       13
 487 #define CP0TCSt_TKSU    11
 488 #define CP0TCSt_IXMT    10
 489 #define CP0TCSt_TASID   0
 490     int32_t CP0_TCBind;
 491 #define CP0TCBd_CurTC   21
 492 #define CP0TCBd_TBE     17
 493 #define CP0TCBd_CurVPE  0
 494     target_ulong CP0_TCHalt;
 495     target_ulong CP0_TCContext;
 496     target_ulong CP0_TCSchedule;
 497     target_ulong CP0_TCScheFBack;
 498     int32_t CP0_Debug_tcstatus;
 499     target_ulong CP0_UserLocal;
 500
 501     int32_t msacsr;
 502
 503 #define MSACSR_FS       24
 504 #define MSACSR_FS_MASK  (1 << MSACSR_FS)
 505 #define MSACSR_NX       18
 506 #define MSACSR_NX_MASK  (1 << MSACSR_NX)
 507 #define MSACSR_CEF      2
 508 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF)
 509 #define MSACSR_RM       0
 510 #define MSACSR_RM_MASK  (0x3 << MSACSR_RM)
 511 #define MSACSR_MASK     (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \
 512         MSACSR_FS_MASK)
 513
 514     float_status msa_fp_status;
 515
 516 #define NUMBER_OF_MXU_REGISTERS 16
 517     target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
 518     target_ulong mxu_cr;
 519 #define MXU_CR_LC       31
 520 #define MXU_CR_RC       30
 521 #define MXU_CR_BIAS     2
 522 #define MXU_CR_RD_EN    1
 523 #define MXU_CR_MXU_EN   0
 524
 525 };
 526
 527 struct MIPSITUState;
 528 typedef struct CPUArchState {
 529     TCState active_tc;
 530     CPUMIPSFPUContext active_fpu;
 531
 532     uint32_t current_tc;
 533     uint32_t current_fpu;
 534
 535     uint32_t SEGBITS;
 536     uint32_t PABITS;
 537 #if defined(TARGET_MIPS64)
 538 # define PABITS_BASE 36
 539 #else
 540 # define PABITS_BASE 32
 541 #endif
 542     target_ulong SEGMask;
 543     uint64_t PAMask;
 544 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
 545
 546     int32_t msair;
 547 #define MSAIR_ProcID    8
 548 #define MSAIR_Rev       0
 549
 550 /*
 551  * CP0 Register 0
 552  */
 553     int32_t CP0_Index;
 554     /* CP0_MVP* are per MVP registers. */
 555     int32_t CP0_VPControl;
 556 #define CP0VPCtl_DIS    0
 557 /*
 558  * CP0 Register 1
 559  */
 560     int32_t CP0_Random;
 561     int32_t CP0_VPEControl;
 562 #define CP0VPECo_YSI    21
 563 #define CP0VPECo_GSI    20
 564 #define CP0VPECo_EXCPT  16
 565 #define CP0VPECo_TE     15
 566 #define CP0VPECo_TargTC 0
 567     int32_t CP0_VPEConf0;
 568 #define CP0VPEC0_M      31
 569 #define CP0VPEC0_XTC    21
 570 #define CP0VPEC0_TCS    19
 571 #define CP0VPEC0_SCS    18
 572 #define CP0VPEC0_DSC    17
 573 #define CP0VPEC0_ICS    16
 574 #define CP0VPEC0_MVP    1
 575 #define CP0VPEC0_VPA    0
 576     int32_t CP0_VPEConf1;
 577 #define CP0VPEC1_NCX    20
 578 #define CP0VPEC1_NCP2   10
 579 #define CP0VPEC1_NCP1   0
 580     target_ulong CP0_YQMask;
 581     target_ulong CP0_VPESchedule;
 582     target_ulong CP0_VPEScheFBack;
 583     int32_t CP0_VPEOpt;
 584 #define CP0VPEOpt_IWX7  15
 585 #define CP0VPEOpt_IWX6  14
 586 #define CP0VPEOpt_IWX5  13
 587 #define CP0VPEOpt_IWX4  12
 588 #define CP0VPEOpt_IWX3  11
 589 #define CP0VPEOpt_IWX2  10
 590 #define CP0VPEOpt_IWX1  9
 591 #define CP0VPEOpt_IWX0  8
 592 #define CP0VPEOpt_DWX7  7
 593 #define CP0VPEOpt_DWX6  6
 594 #define CP0VPEOpt_DWX5  5
 595 #define CP0VPEOpt_DWX4  4
 596 #define CP0VPEOpt_DWX3  3
 597 #define CP0VPEOpt_DWX2  2
 598 #define CP0VPEOpt_DWX1  1
 599 #define CP0VPEOpt_DWX0  0
 600 /*
 601  * CP0 Register 2
 602  */
 603     uint64_t CP0_EntryLo0;
 604 /*
 605  * CP0 Register 3
 606  */
 607     uint64_t CP0_EntryLo1;
 608 #if defined(TARGET_MIPS64)
 609 # define CP0EnLo_RI 63
 610 # define CP0EnLo_XI 62
 611 #else
 612 # define CP0EnLo_RI 31
 613 # define CP0EnLo_XI 30
 614 #endif
 615     int32_t CP0_GlobalNumber;
 616 #define CP0GN_VPId 0
 617 /*
 618  * CP0 Register 4
 619  */
 620     target_ulong CP0_Context;
 621     int32_t CP0_MemoryMapID;
 622 /*
 623  * CP0 Register 5
 624  */
 625     int32_t CP0_PageMask;
 626 #define CP0PM_MASK 13
 627     int32_t CP0_PageGrain_rw_bitmask;
 628     int32_t CP0_PageGrain;
 629 #define CP0PG_RIE 31
 630 #define CP0PG_XIE 30
 631 #define CP0PG_ELPA 29
 632 #define CP0PG_IEC 27
 633     target_ulong CP0_SegCtl0;
 634     target_ulong CP0_SegCtl1;
 635     target_ulong CP0_SegCtl2;
 636 #define CP0SC_PA        9
 637 #define CP0SC_PA_MASK   (0x7FULL << CP0SC_PA)
 638 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA)
 639 #define CP0SC_AM        4
 640 #define CP0SC_AM_MASK   (0x7ULL << CP0SC_AM)
 641 #define CP0SC_AM_UK     0ULL
 642 #define CP0SC_AM_MK     1ULL
 643 #define CP0SC_AM_MSK    2ULL
 644 #define CP0SC_AM_MUSK   3ULL
 645 #define CP0SC_AM_MUSUK  4ULL
 646 #define CP0SC_AM_USK    5ULL
 647 #define CP0SC_AM_UUSK   7ULL
 648 #define CP0SC_EU        3
 649 #define CP0SC_EU_MASK   (1ULL << CP0SC_EU)
 650 #define CP0SC_C         0
 651 #define CP0SC_C_MASK    (0x7ULL << CP0SC_C)
 652 #define CP0SC_MASK      (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
 653                          CP0SC_PA_MASK)
 654 #define CP0SC_1GMASK    (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
 655                          CP0SC_PA_1GMASK)
 656 #define CP0SC0_MASK     (CP0SC_MASK | (CP0SC_MASK << 16))
 657 #define CP0SC1_XAM      59
 658 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM)
 659 #define CP0SC1_MASK     (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK)
 660 #define CP0SC2_XR       56
 661 #define CP0SC2_XR_MASK  (0xFFULL << CP0SC2_XR)
 662 #define CP0SC2_MASK     (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK)
 663     target_ulong CP0_PWBase;
 664     target_ulong CP0_PWField;
 665 #if defined(TARGET_MIPS64)
 666 #define CP0PF_BDI  32    /* 37..32 */
 667 #define CP0PF_GDI  24    /* 29..24 */
 668 #define CP0PF_UDI  18    /* 23..18 */
 669 #define CP0PF_MDI  12    /* 17..12 */
 670 #define CP0PF_PTI  6     /* 11..6  */
 671 #define CP0PF_PTEI 0     /*  5..0  */
 672 #else
 673 #define CP0PF_GDW  24    /* 29..24 */
 674 #define CP0PF_UDW  18    /* 23..18 */
 675 #define CP0PF_MDW  12    /* 17..12 */
 676 #define CP0PF_PTW  6     /* 11..6  */
 677 #define CP0PF_PTEW 0     /*  5..0  */
 678 #endif
 679     target_ulong CP0_PWSize;
 680 #if defined(TARGET_MIPS64)
 681 #define CP0PS_BDW  32    /* 37..32 */
 682 #endif
 683 #define CP0PS_PS   30
 684 #define CP0PS_GDW  24    /* 29..24 */
 685 #define CP0PS_UDW  18    /* 23..18 */
 686 #define CP0PS_MDW  12    /* 17..12 */
 687 #define CP0PS_PTW  6     /* 11..6  */
 688 #define CP0PS_PTEW 0     /*  5..0  */
 689 /*
 690  * CP0 Register 6
 691  */
 692     int32_t CP0_Wired;
 693     int32_t CP0_PWCtl;
 694 #define CP0PC_PWEN      31
 695 #if defined(TARGET_MIPS64)
 696 #define CP0PC_PWDIREXT  30
 697 #define CP0PC_XK        28
 698 #define CP0PC_XS        27
 699 #define CP0PC_XU        26
 700 #endif
 701 #define CP0PC_DPH       7
 702 #define CP0PC_HUGEPG    6
 703 #define CP0PC_PSN       0     /*  5..0  */
 704     int32_t CP0_SRSConf0_rw_bitmask;
 705     int32_t CP0_SRSConf0;
 706 #define CP0SRSC0_M      31
 707 #define CP0SRSC0_SRS3   20
 708 #define CP0SRSC0_SRS2   10
 709 #define CP0SRSC0_SRS1   0
 710     int32_t CP0_SRSConf1_rw_bitmask;
 711     int32_t CP0_SRSConf1;
 712 #define CP0SRSC1_M      31
 713 #define CP0SRSC1_SRS6   20
 714 #define CP0SRSC1_SRS5   10
 715 #define CP0SRSC1_SRS4   0
 716     int32_t CP0_SRSConf2_rw_bitmask;
 717     int32_t CP0_SRSConf2;
 718 #define CP0SRSC2_M      31
 719 #define CP0SRSC2_SRS9   20
 720 #define CP0SRSC2_SRS8   10
 721 #define CP0SRSC2_SRS7   0
 722     int32_t CP0_SRSConf3_rw_bitmask;
 723     int32_t CP0_SRSConf3;
 724 #define CP0SRSC3_M      31
 725 #define CP0SRSC3_SRS12  20
 726 #define CP0SRSC3_SRS11  10
 727 #define CP0SRSC3_SRS10  0
 728     int32_t CP0_SRSConf4_rw_bitmask;
 729     int32_t CP0_SRSConf4;
 730 #define CP0SRSC4_SRS15  20
 731 #define CP0SRSC4_SRS14  10
 732 #define CP0SRSC4_SRS13  0
 733 /*
 734  * CP0 Register 7
 735  */
 736     int32_t CP0_HWREna;
 737 /*
 738  * CP0 Register 8
 739  */
 740     target_ulong CP0_BadVAddr;
 741     uint32_t CP0_BadInstr;
 742     uint32_t CP0_BadInstrP;
 743     uint32_t CP0_BadInstrX;
 744 /*
 745  * CP0 Register 9
 746  */
 747     int32_t CP0_Count;
 748 #define CP0SAARI_TARGET 0    /*  5..0  */
 749 #define CP0SAAR_BASE    12   /* 43..12 */
 750 #define CP0SAAR_SIZE    1    /*  5..1  */
 751 #define CP0SAAR_EN      0
 752 /*
 753  * CP0 Register 10
 754  */
 755     target_ulong CP0_EntryHi;
 756 #define CP0EnHi_EHINV 10
 757     target_ulong CP0_EntryHi_ASID_mask;
 758 /*
 759  * CP0 Register 11
 760  */
 761     int32_t CP0_Compare;
 762 /*
 763  * CP0 Register 12
 764  */
 765     int32_t CP0_Status;
 766 #define CP0St_CU3   31
 767 #define CP0St_CU2   30
 768 #define CP0St_CU1   29
 769 #define CP0St_CU0   28
 770 #define CP0St_RP    27
 771 #define CP0St_FR    26
 772 #define CP0St_RE    25
 773 #define CP0St_MX    24
 774 #define CP0St_PX    23
 775 #define CP0St_BEV   22
 776 #define CP0St_TS    21
 777 #define CP0St_SR    20
 778 #define CP0St_NMI   19
 779 #define CP0St_IM    8
 780 #define CP0St_KX    7
 781 #define CP0St_SX    6
 782 #define CP0St_UX    5
 783 #define CP0St_KSU   3
 784 #define CP0St_ERL   2
 785 #define CP0St_EXL   1
 786 #define CP0St_IE    0
 787     int32_t CP0_IntCtl;
 788 #define CP0IntCtl_IPTI 29
 789 #define CP0IntCtl_IPPCI 26
 790 #define CP0IntCtl_VS 5
 791     int32_t CP0_SRSCtl;
 792 #define CP0SRSCtl_HSS 26
 793 #define CP0SRSCtl_EICSS 18
 794 #define CP0SRSCtl_ESS 12
 795 #define CP0SRSCtl_PSS 6
 796 #define CP0SRSCtl_CSS 0
 797     int32_t CP0_SRSMap;
 798 #define CP0SRSMap_SSV7 28
 799 #define CP0SRSMap_SSV6 24
 800 #define CP0SRSMap_SSV5 20
 801 #define CP0SRSMap_SSV4 16
 802 #define CP0SRSMap_SSV3 12
 803 #define CP0SRSMap_SSV2 8
 804 #define CP0SRSMap_SSV1 4
 805 #define CP0SRSMap_SSV0 0
 806 /*
 807  * CP0 Register 13
 808  */
 809     int32_t CP0_Cause;
 810 #define CP0Ca_BD   31
 811 #define CP0Ca_TI   30
 812 #define CP0Ca_CE   28
 813 #define CP0Ca_DC   27
 814 #define CP0Ca_PCI  26
 815 #define CP0Ca_IV   23
 816 #define CP0Ca_WP   22
 817 #define CP0Ca_IP    8
 818 #define CP0Ca_IP_mask 0x0000FF00
 819 #define CP0Ca_EC    2
 820 /*
 821  * CP0 Register 14
 822  */
 823     target_ulong CP0_EPC;
 824 /*
 825  * CP0 Register 15
 826  */
 827     int32_t CP0_PRid;
 828     target_ulong CP0_EBase;
 829     target_ulong CP0_EBaseWG_rw_bitmask;
 830 #define CP0EBase_WG 11
 831     target_ulong CP0_CMGCRBase;
 832 /*
 833  * CP0 Register 16 (after Release 1)
 834  */
 835     int32_t CP0_Config0;
 836 #define CP0C0_M    31
 837 #define CP0C0_K23  28    /* 30..28 */
 838 #define CP0C0_KU   25    /* 27..25 */
 839 #define CP0C0_SB   21
 840 #define CP0C0_MDU  20
 841 #define CP0C0_MM   18
 842 #define CP0C0_BM   16
 843 #define CP0C0_Impl 16    /* 24..16 */
 844 #define CP0C0_BE   15
 845 #define CP0C0_AT   13    /* 14..13 */
 846 #define CP0C0_AR   10    /* 12..10 */
 847 #define CP0C0_MT   7     /*  9..7  */
 848 #define CP0C0_VI   3
 849 #define CP0C0_K0   0     /*  2..0  */
 850 #define CP0C0_AR_LENGTH 3
 851 /*
 852  * CP0 Register 16 (before Release 1)
 853  */
 854 #define CP0C0_Impl 16    /* 24..16 */
 855 #define CP0C0_IC   9     /* 11..9 */
 856 #define CP0C0_DC   6     /*  8..6 */
 857 #define CP0C0_IB   5
 858 #define CP0C0_DB   4
 859     int32_t CP0_Config1;
 860 #define CP0C1_M    31
 861 #define CP0C1_MMU  25    /* 30..25 */
 862 #define CP0C1_IS   22    /* 24..22 */
 863 #define CP0C1_IL   19    /* 21..19 */
 864 #define CP0C1_IA   16    /* 18..16 */
 865 #define CP0C1_DS   13    /* 15..13 */
 866 #define CP0C1_DL   10    /* 12..10 */
 867 #define CP0C1_DA   7     /*  9..7  */
 868 #define CP0C1_C2   6
 869 #define CP0C1_MD   5
 870 #define CP0C1_PC   4
 871 #define CP0C1_WR   3
 872 #define CP0C1_CA   2
 873 #define CP0C1_EP   1
 874 #define CP0C1_FP   0
 875     int32_t CP0_Config2;
 876 #define CP0C2_M    31
 877 #define CP0C2_TU   28    /* 30..28 */
 878 #define CP0C2_TS   24    /* 27..24 */
 879 #define CP0C2_TL   20    /* 23..20 */
 880 #define CP0C2_TA   16    /* 19..16 */
 881 #define CP0C2_SU   12    /* 15..12 */
 882 #define CP0C2_SS   8     /* 11..8  */
 883 #define CP0C2_SL   4     /*  7..4  */
 884 #define CP0C2_SA   0     /*  3..0  */
 885     int32_t CP0_Config3;
 886 #define CP0C3_M            31
 887 #define CP0C3_BPG          30
 888 #define CP0C3_CMGCR        29
 889 #define CP0C3_MSAP         28
 890 #define CP0C3_BP           27
 891 #define CP0C3_BI           26
 892 #define CP0C3_SC           25
 893 #define CP0C3_PW           24
 894 #define CP0C3_VZ           23
 895 #define CP0C3_IPLV         21    /* 22..21 */
 896 #define CP0C3_MMAR         18    /* 20..18 */
 897 #define CP0C3_MCU          17
 898 #define CP0C3_ISA_ON_EXC   16
 899 #define CP0C3_ISA          14    /* 15..14 */
 900 #define CP0C3_ULRI         13
 901 #define CP0C3_RXI          12
 902 #define CP0C3_DSP2P        11
 903 #define CP0C3_DSPP         10
 904 #define CP0C3_CTXTC        9
 905 #define CP0C3_ITL          8
 906 #define CP0C3_LPA          7
 907 #define CP0C3_VEIC         6
 908 #define CP0C3_VInt         5
 909 #define CP0C3_SP           4
 910 #define CP0C3_CDMM         3
 911 #define CP0C3_MT           2
 912 #define CP0C3_SM           1
 913 #define CP0C3_TL           0
 914     int32_t CP0_Config4;
 915     int32_t CP0_Config4_rw_bitmask;
 916 #define CP0C4_M            31
 917 #define CP0C4_IE           29    /* 30..29 */
 918 #define CP0C4_AE           28
 919 #define CP0C4_VTLBSizeExt  24    /* 27..24 */
 920 #define CP0C4_KScrExist    16
 921 #define CP0C4_MMUExtDef    14
 922 #define CP0C4_FTLBPageSize 8     /* 12..8  */
 923 /* bit layout if MMUExtDef=1 */
 924 #define CP0C4_MMUSizeExt   0     /*  7..0  */
 925 /* bit layout if MMUExtDef=2 */
 926 #define CP0C4_FTLBWays     4     /*  7..4  */
 927 #define CP0C4_FTLBSets     0     /*  3..0  */
 928     int32_t CP0_Config5;
 929     int32_t CP0_Config5_rw_bitmask;
 930 #define CP0C5_M            31
 931 #define CP0C5_K            30
 932 #define CP0C5_CV           29
 933 #define CP0C5_EVA          28
 934 #define CP0C5_MSAEn        27
 935 #define CP0C5_PMJ          23    /* 25..23 */
 936 #define CP0C5_WR2          22
 937 #define CP0C5_NMS          21
 938 #define CP0C5_ULS          20
 939 #define CP0C5_XPA          19
 940 #define CP0C5_CRCP         18
 941 #define CP0C5_MI           17
 942 #define CP0C5_GI           15    /* 16..15 */
 943 #define CP0C5_CA2          14
 944 #define CP0C5_XNP          13
 945 #define CP0C5_DEC          11
 946 #define CP0C5_L2C          10
 947 #define CP0C5_UFE          9
 948 #define CP0C5_FRE          8
 949 #define CP0C5_VP           7
 950 #define CP0C5_SBRI         6
 951 #define CP0C5_MVH          5
 952 #define CP0C5_LLB          4
 953 #define CP0C5_MRP          3
 954 #define CP0C5_UFR          2
 955 #define CP0C5_NFExists     0
 956     int32_t CP0_Config6;
 957     int32_t CP0_Config6_rw_bitmask;
 958 #define CP0C6_BPPASS          31
 959 #define CP0C6_KPOS            24
 960 #define CP0C6_KE              23
 961 #define CP0C6_VTLBONLY        22
 962 #define CP0C6_LASX            21
 963 #define CP0C6_SSEN            20
 964 #define CP0C6_DISDRTIME       19
 965 #define CP0C6_PIXNUEN         18
 966 #define CP0C6_SCRAND          17
 967 #define CP0C6_LLEXCEN         16
 968 #define CP0C6_DISVC           15
 969 #define CP0C6_VCLRU           14
 970 #define CP0C6_DCLRU           13
 971 #define CP0C6_PIXUEN          12
 972 #define CP0C6_DISBLKLYEN      11
 973 #define CP0C6_UMEMUALEN       10
 974 #define CP0C6_SFBEN           8
 975 #define CP0C6_FLTINT          7
 976 #define CP0C6_VLTINT          6
 977 #define CP0C6_DISBTB          5
 978 #define CP0C6_STPREFCTL       2
 979 #define CP0C6_INSTPREF        1
 980 #define CP0C6_DATAPREF        0
 981     int32_t CP0_Config7;
 982     int64_t CP0_Config7_rw_bitmask;
 983 #define CP0C7_WII          31
 984 #define CP0C7_NAPCGEN       2
 985 #define CP0C7_UNIMUEN       1
 986 #define CP0C7_VFPUCGEN      0
 987     uint64_t CP0_LLAddr;
 988     uint64_t CP0_MAAR[MIPS_MAAR_MAX];
 989     int32_t CP0_MAARI;
 990     /* XXX: Maybe make LLAddr per-TC? */
 991 /*
 992  * CP0 Register 17
 993  */
 994     target_ulong lladdr; /* LL virtual address compared against SC */
 995     target_ulong llval;
 996     uint64_t llval_wp;
 997     uint32_t llnewval_wp;
 998     uint64_t CP0_LLAddr_rw_bitmask;
 999     int CP0_LLAddr_shift;
1000 /*
1001  * CP0 Register 18
1002  */
1003     target_ulong CP0_WatchLo[8];
1004 /*
1005  * CP0 Register 19
1006  */
1007     uint64_t CP0_WatchHi[8];
1008 #define CP0WH_ASID 16
1009 #define CP0WH_M    31
1010 /*
1011  * CP0 Register 20
1012  */
1013     target_ulong CP0_XContext;
1014     int32_t CP0_Framemask;
1015 /*
1016  * CP0 Register 23
1017  */
1018     int32_t CP0_Debug;
1019 #define CP0DB_DBD  31
1020 #define CP0DB_DM   30
1021 #define CP0DB_LSNM 28
1022 #define CP0DB_Doze 27
1023 #define CP0DB_Halt 26
1024 #define CP0DB_CNT  25
1025 #define CP0DB_IBEP 24
1026 #define CP0DB_DBEP 21
1027 #define CP0DB_IEXI 20
1028 #define CP0DB_VER  15
1029 #define CP0DB_DEC  10
1030 #define CP0DB_SSt  8
1031 #define CP0DB_DINT 5
1032 #define CP0DB_DIB  4
1033 #define CP0DB_DDBS 3
1034 #define CP0DB_DDBL 2
1035 #define CP0DB_DBp  1
1036 #define CP0DB_DSS  0
1037 /*
1038  * CP0 Register 24
1039  */
1040     target_ulong CP0_DEPC;
1041 /*
1042  * CP0 Register 25
1043  */
1044     int32_t CP0_Performance0;
1045 /*
1046  * CP0 Register 26
1047  */
1048     int32_t CP0_ErrCtl;
1049 #define CP0EC_WST 29
1050 #define CP0EC_SPR 28
1051 #define CP0EC_ITC 26
1052 /*
1053  * CP0 Register 28
1054  */
1055     uint64_t CP0_TagLo;
1056     int32_t CP0_DataLo;
1057 /*
1058  * CP0 Register 29
1059  */
1060     int32_t CP0_TagHi;
1061     int32_t CP0_DataHi;
1062 /*
1063  * CP0 Register 30
1064  */
1065     target_ulong CP0_ErrorEPC;
1066 /*
1067  * CP0 Register 31
1068  */
1069     int32_t CP0_DESAVE;
1070     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
1071 /*
1072  * Loongson CSR CPUCFG registers
1073  */
1074     uint32_t lcsr_cpucfg1;
1075 #define CPUCFG1_FP     0
1076 #define CPUCFG1_FPREV  1
1077 #define CPUCFG1_MMI    4
1078 #define CPUCFG1_MSA1   5
1079 #define CPUCFG1_MSA2   6
1080 #define CPUCFG1_LSLDR0 16
1081 #define CPUCFG1_LSPERF 17
1082 #define CPUCFG1_LSPERFX 18
1083 #define CPUCFG1_LSSYNCI 19
1084 #define CPUCFG1_LLEXC   20
1085 #define CPUCFG1_SCRAND  21
1086 #define CPUCFG1_MUALP   25
1087 #define CPUCFG1_KMUALEN 26
1088 #define CPUCFG1_ITLBT   27
1089 #define CPUCFG1_SFBP    29
1090 #define CPUCFG1_CDMAP   30
1091     uint32_t lcsr_cpucfg2;
1092 #define CPUCFG2_LEXT1   0
1093 #define CPUCFG2_LEXT2   1
1094 #define CPUCFG2_LEXT3   2
1095 #define CPUCFG2_LSPW    3
1096 #define CPUCFG2_LCSRP   27
1097 #define CPUCFG2_LDISBLIKELY 28
1098
1099     /* We waste some space so we can handle shadow registers like TCs. */
1100     TCState tcs[MIPS_SHADOW_SET_MAX];
1101     CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
1102     /* QEMU */
1103     int error_code;
1104 #define EXCP_TLB_NOMATCH   0x1
1105 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
1106     uint32_t hflags;    /* CPU State */
1107     /* TMASK defines different execution modes */
1108 #define MIPS_HFLAG_TMASK  0x3F5807FF
1109 #define MIPS_HFLAG_MODE   0x00007 /* execution modes                    */
1110     /*
1111      * The KSU flags must be the lowest bits in hflags. The flag order
1112      * must be the same as defined for CP0 Status. This allows to use
1113      * the bits as the value of mmu_idx.
1114      */
1115 #define MIPS_HFLAG_KSU    0x00003 /* kernel/supervisor/user mode mask   */
1116 #define MIPS_HFLAG_UM     0x00002 /* user mode flag                     */
1117 #define MIPS_HFLAG_SM     0x00001 /* supervisor mode flag               */
1118 #define MIPS_HFLAG_KM     0x00000 /* kernel mode flag                   */
1119 #define MIPS_HFLAG_DM     0x00004 /* Debug mode                         */
1120 #define MIPS_HFLAG_64     0x00008 /* 64-bit instructions enabled        */
1121 #define MIPS_HFLAG_CP0    0x00010 /* CP0 enabled                        */
1122 #define MIPS_HFLAG_FPU    0x00020 /* FPU enabled                        */
1123 #define MIPS_HFLAG_F64    0x00040 /* 64-bit FPU enabled                 */
1124     /*
1125      * True if the MIPS IV COP1X instructions can be used.  This also
1126      * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
1127      * and RSQRT.D.
1128      */
1129 #define MIPS_HFLAG_COP1X  0x00080 /* COP1X instructions enabled         */
1130 #define MIPS_HFLAG_RE     0x00100 /* Reversed endianness                */
1131 #define MIPS_HFLAG_AWRAP  0x00200 /* 32-bit compatibility address wrapping */
1132 #define MIPS_HFLAG_M16    0x00400 /* MIPS16 mode flag                   */
1133 #define MIPS_HFLAG_M16_SHIFT 10
1134     /*
1135      * If translation is interrupted between the branch instruction and
1136      * the delay slot, record what type of branch it is so that we can
1137      * resume translation properly.  It might be possible to reduce
1138      * this from three bits to two.
1139      */
1140 #define MIPS_HFLAG_BMASK_BASE  0x803800
1141 #define MIPS_HFLAG_B      0x00800 /* Unconditional branch               */
1142 #define MIPS_HFLAG_BC     0x01000 /* Conditional branch                 */
1143 #define MIPS_HFLAG_BL     0x01800 /* Likely branch                      */
1144 #define MIPS_HFLAG_BR     0x02000 /* branch to register (can't link TB) */
1145     /* Extra flags about the current pending branch.  */
1146 #define MIPS_HFLAG_BMASK_EXT 0x7C000
1147 #define MIPS_HFLAG_B16    0x04000 /* branch instruction was 16 bits     */
1148 #define MIPS_HFLAG_BDS16  0x08000 /* branch requires 16-bit delay slot  */
1149 #define MIPS_HFLAG_BDS32  0x10000 /* branch requires 32-bit delay slot  */
1150 #define MIPS_HFLAG_BDS_STRICT  0x20000 /* Strict delay slot size */
1151 #define MIPS_HFLAG_BX     0x40000 /* branch exchanges execution mode    */
1152 #define MIPS_HFLAG_BMASK  (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
1153     /* MIPS DSP resources access. */
1154 #define MIPS_HFLAG_DSP    0x080000   /* Enable access to DSP resources.    */
1155 #define MIPS_HFLAG_DSP_R2 0x100000   /* Enable access to DSP R2 resources. */
1156 #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */
1157     /* Extra flag about HWREna register. */
1158 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
1159 #define MIPS_HFLAG_SBRI  0x400000 /* R6 SDBBP causes RI excpt. in user mode */
1160 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot                   */
1161 #define MIPS_HFLAG_MSA   0x1000000
1162 #define MIPS_HFLAG_FRE   0x2000000 /* FRE enabled */
1163 #define MIPS_HFLAG_ELPA  0x4000000
1164 #define MIPS_HFLAG_ITC_CACHE  0x8000000 /* CACHE instr. operates on ITC tag */
1165 #define MIPS_HFLAG_ERL   0x10000000 /* error level flag */
1166     target_ulong btarget;        /* Jump / branch target               */
1167     target_ulong bcond;          /* Branch condition (if needed)       */
1168
1169     int SYNCI_Step; /* Address step size for SYNCI */
1170     int CCRes; /* Cycle count resolution/divisor */
1171     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
1172     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
1173     uint64_t insn_flags; /* Supported instruction set */
1174
1175     /* Fields up to this point are cleared by a CPU reset */
1176     struct {} end_reset_fields;
1177
1178     /* Fields from here on are preserved across CPU reset. */
1179     CPUMIPSMVPContext *mvp;
1180 #if !defined(CONFIG_USER_ONLY)
1181     CPUMIPSTLBContext *tlb;
1182     qemu_irq irq[8];
1183     MemoryRegion *itc_tag; /* ITC Configuration Tags */
1184
1185     /* Loongson IOCSR memory */
1186     struct {
1187         AddressSpace as;
1188         MemoryRegion mr;
1189     } iocsr;
1190 #endif
1191
1192     const mips_def_t *cpu_model;
1193     QEMUTimer *timer; /* Internal timer */
1194     Clock *count_clock; /* CP0_Count clock */
1195     target_ulong exception_base; /* ExceptionBase input to the core */
1196 } CPUMIPSState;
1197
1198 /**
1199  * MIPSCPU:
1200  * @env: #CPUMIPSState
1201  * @clock: this CPU input clock (may be connected
1202  *         to an output clock from another device).
1203  *
1204  * A MIPS CPU.
1205  */
1206 struct ArchCPU {
1207     CPUState parent_obj;
1208
1209     CPUMIPSState env;
1210
1211     Clock *clock;
1212     Clock *count_div; /* Divider for CP0_Count clock */
1213 };
1214
1215 /**
1216  * MIPSCPUClass:
1217  * @parent_realize: The parent class' realize handler.
1218  * @parent_phases: The parent class' reset phase handlers.
1219  *
1220  * A MIPS CPU model.
1221  */
1222 struct MIPSCPUClass {
1223     CPUClass parent_class;
1224
1225     DeviceRealize parent_realize;
1226     ResettablePhases parent_phases;
1227     const struct mips_def_t *cpu_def;
1228
1229     /* Used for the jazz board to modify mips_cpu_do_transaction_failed. */
1230     bool no_data_aborts;
1231 };
1232
1233 void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
1234 uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
1235
1236 /*
1237  * MMU modes definitions. We carefully match the indices with our
1238  * hflags layout.
1239  */
1240 #define MMU_KERNEL_IDX 0
1241 #define MMU_USER_IDX 2
1242 #define MMU_ERL_IDX 3
1243
1244 static inline int hflags_mmu_index(uint32_t hflags)
1245 {
1246     if (hflags & MIPS_HFLAG_ERL) {
1247         return MMU_ERL_IDX;
1248     } else {
1249         return hflags & MIPS_HFLAG_KSU;
1250     }
1251 }
1252
1253 static inline int mips_env_mmu_index(CPUMIPSState *env)
1254 {
1255     return hflags_mmu_index(env->hflags);
1256 }
1257
1258 #include "exec/cpu-all.h"
1259
1260 /* Exceptions */
1261 enum {
1262     EXCP_NONE          = -1,
1263     EXCP_RESET         = 0,
1264     EXCP_SRESET,
1265     EXCP_DSS,
1266     EXCP_DINT,
1267     EXCP_DDBL,
1268     EXCP_DDBS,
1269     EXCP_NMI,
1270     EXCP_MCHECK,
1271     EXCP_EXT_INTERRUPT, /* 8 */
1272     EXCP_DFWATCH,
1273     EXCP_DIB,
1274     EXCP_IWATCH,
1275     EXCP_AdEL,
1276     EXCP_AdES,
1277     EXCP_TLBF,
1278     EXCP_IBE,
1279     EXCP_DBp, /* 16 */
1280     EXCP_SYSCALL,
1281     EXCP_BREAK,
1282     EXCP_CpU,
1283     EXCP_RI,
1284     EXCP_OVERFLOW,
1285     EXCP_TRAP,
1286     EXCP_FPE,
1287     EXCP_DWATCH, /* 24 */
1288     EXCP_LTLBL,
1289     EXCP_TLBL,
1290     EXCP_TLBS,
1291     EXCP_DBE,
1292     EXCP_THREAD,
1293     EXCP_MDMX,
1294     EXCP_C2E,
1295     EXCP_CACHE, /* 32 */
1296     EXCP_DSPDIS,
1297     EXCP_MSADIS,
1298     EXCP_MSAFPE,
1299     EXCP_TLBXI,
1300     EXCP_TLBRI,
1301     EXCP_SEMIHOST,
1302
1303     EXCP_LAST = EXCP_SEMIHOST,
1304 };
1305
1306 /*
1307  * This is an internally generated WAKE request line.
1308  * It is driven by the CPU itself. Raised when the MT
1309  * block wants to wake a VPE from an inactive state and
1310  * cleared when VPE goes from active to inactive.
1311  */
1312 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
1313
1314 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
1315
1316 bool cpu_type_supports_cps_smp(const char *cpu_type);
1317 bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask);
1318 bool cpu_type_supports_isa(const char *cpu_type, uint64_t isa);
1319
1320 /* Check presence of MSA implementation */
1321 static inline bool ase_msa_available(CPUMIPSState *env)
1322 {
1323     return env->CP0_Config3 & (1 << CP0C3_MSAP);
1324 }
1325
1326 /* Check presence of Loongson CSR instructions */
1327 static inline bool ase_lcsr_available(CPUMIPSState *env)
1328 {
1329     return env->lcsr_cpucfg2 & (1 << CPUCFG2_LCSRP);
1330 }
1331
1332 /* Check presence of multi-threading ASE implementation */
1333 static inline bool ase_mt_available(CPUMIPSState *env)
1334 {
1335     return env->CP0_Config3 & (1 << CP0C3_MT);
1336 }
1337
1338 static inline bool cpu_type_is_64bit(const char *cpu_type)
1339 {
1340     return cpu_type_supports_isa(cpu_type, CPU_MIPS64);
1341 }
1342
1343 void cpu_set_exception_base(int vp_index, target_ulong address);
1344
1345 /* addr.c */
1346 uint64_t cpu_mips_kseg0_to_phys(void *opaque, uint64_t addr);
1347 uint64_t cpu_mips_phys_to_kseg0(void *opaque, uint64_t addr);
1348
1349 uint64_t cpu_mips_kseg1_to_phys(void *opaque, uint64_t addr);
1350 uint64_t cpu_mips_phys_to_kseg1(void *opaque, uint64_t addr);
1351
1352 #if !defined(CONFIG_USER_ONLY)
1353
1354 /* HW declaration specific to the MIPS target */
1355 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
1356 void cpu_mips_irq_init_cpu(MIPSCPU *cpu);
1357 void cpu_mips_clock_init(MIPSCPU *cpu);
1358
1359 #endif /* !CONFIG_USER_ONLY */
1360
1361 /* helper.c */
1362 target_ulong exception_resume_pc(CPUMIPSState *env);
1363
1364 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, vaddr *pc,
1365                                         uint64_t *cs_base, uint32_t *flags)
1366 {
1367     *pc = env->active_tc.PC;
1368     *cs_base = 0;
1369     *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
1370                             MIPS_HFLAG_HWRENA_ULR);
1371 }
1372
1373 /**
1374  * mips_cpu_create_with_clock:
1375  * @typename: a MIPS CPU type.
1376  * @cpu_refclk: this cpu input clock (an output clock of another device)
1377  *
1378  * Instantiates a MIPS CPU, set the input clock of the CPU to @cpu_refclk,
1379  * then realizes the CPU.
1380  *
1381  * Returns: A #CPUState or %NULL if an error occurred.
1382  */
1383 MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk);
1384
1385 #endif /* MIPS_CPU_H */