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cpu.h (40978B)


      1 #ifndef MIPS_CPU_H
      2 #define MIPS_CPU_H
      3 
      4 #include "cpu-qom.h"
      5 #include "exec/cpu-defs.h"
      6 #include "fpu/softfloat-types.h"
      7 #include "hw/clock.h"
      8 #include "mips-defs.h"
      9 
     10 #define TCG_GUEST_DEFAULT_MO (0)
     11 
     12 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
     13 
     14 /* MSA Context */
     15 #define MSA_WRLEN (128)
     16 
     17 typedef union wr_t wr_t;
     18 union wr_t {
     19     int8_t  b[MSA_WRLEN / 8];
     20     int16_t h[MSA_WRLEN / 16];
     21     int32_t w[MSA_WRLEN / 32];
     22     int64_t d[MSA_WRLEN / 64];
     23 };
     24 
     25 typedef union fpr_t fpr_t;
     26 union fpr_t {
     27     float64  fd;   /* ieee double precision */
     28     float32  fs[2];/* ieee single precision */
     29     uint64_t d;    /* binary double fixed-point */
     30     uint32_t w[2]; /* binary single fixed-point */
     31 /* FPU/MSA register mapping is not tested on big-endian hosts. */
     32     wr_t     wr;   /* vector data */
     33 };
     34 /*
     35  *define FP_ENDIAN_IDX to access the same location
     36  * in the fpr_t union regardless of the host endianness
     37  */
     38 #if HOST_BIG_ENDIAN
     39 #  define FP_ENDIAN_IDX 1
     40 #else
     41 #  define FP_ENDIAN_IDX 0
     42 #endif
     43 
     44 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
     45 struct CPUMIPSFPUContext {
     46     /* Floating point registers */
     47     fpr_t fpr[32];
     48     float_status fp_status;
     49     /* fpu implementation/revision register (fir) */
     50     uint32_t fcr0;
     51 #define FCR0_FREP 29
     52 #define FCR0_UFRP 28
     53 #define FCR0_HAS2008 23
     54 #define FCR0_F64 22
     55 #define FCR0_L 21
     56 #define FCR0_W 20
     57 #define FCR0_3D 19
     58 #define FCR0_PS 18
     59 #define FCR0_D 17
     60 #define FCR0_S 16
     61 #define FCR0_PRID 8
     62 #define FCR0_REV 0
     63     /* fcsr */
     64     uint32_t fcr31_rw_bitmask;
     65     uint32_t fcr31;
     66 #define FCR31_FS 24
     67 #define FCR31_ABS2008 19
     68 #define FCR31_NAN2008 18
     69 #define SET_FP_COND(num, env)     do { ((env).fcr31) |=                 \
     70                                        ((num) ? (1 << ((num) + 24)) :   \
     71                                                 (1 << 23));             \
     72                                      } while (0)
     73 #define CLEAR_FP_COND(num, env)   do { ((env).fcr31) &=                 \
     74                                        ~((num) ? (1 << ((num) + 24)) :  \
     75                                                  (1 << 23));            \
     76                                      } while (0)
     77 #define GET_FP_COND(env)         ((((env).fcr31 >> 24) & 0xfe) |        \
     78                                  (((env).fcr31 >> 23) & 0x1))
     79 #define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
     80 #define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
     81 #define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
     82 #define SET_FP_CAUSE(reg, v)      do { (reg) = ((reg) & ~(0x3f << 12)) | \
     83                                                ((v & 0x3f) << 12);       \
     84                                      } while (0)
     85 #define SET_FP_ENABLE(reg, v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | \
     86                                                ((v & 0x1f) << 7);        \
     87                                      } while (0)
     88 #define SET_FP_FLAGS(reg, v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | \
     89                                                ((v & 0x1f) << 2);        \
     90                                      } while (0)
     91 #define UPDATE_FP_FLAGS(reg, v)   do { (reg) |= ((v & 0x1f) << 2); } while (0)
     92 #define FP_INEXACT        1
     93 #define FP_UNDERFLOW      2
     94 #define FP_OVERFLOW       4
     95 #define FP_DIV0           8
     96 #define FP_INVALID        16
     97 #define FP_UNIMPLEMENTED  32
     98 };
     99 
    100 #define TARGET_INSN_START_EXTRA_WORDS 2
    101 
    102 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
    103 struct CPUMIPSMVPContext {
    104     int32_t CP0_MVPControl;
    105 #define CP0MVPCo_CPA    3
    106 #define CP0MVPCo_STLB   2
    107 #define CP0MVPCo_VPC    1
    108 #define CP0MVPCo_EVP    0
    109     int32_t CP0_MVPConf0;
    110 #define CP0MVPC0_M      31
    111 #define CP0MVPC0_TLBS   29
    112 #define CP0MVPC0_GS     28
    113 #define CP0MVPC0_PCP    27
    114 #define CP0MVPC0_PTLBE  16
    115 #define CP0MVPC0_TCA    15
    116 #define CP0MVPC0_PVPE   10
    117 #define CP0MVPC0_PTC    0
    118     int32_t CP0_MVPConf1;
    119 #define CP0MVPC1_CIM    31
    120 #define CP0MVPC1_CIF    30
    121 #define CP0MVPC1_PCX    20
    122 #define CP0MVPC1_PCP2   10
    123 #define CP0MVPC1_PCP1   0
    124 };
    125 
    126 typedef struct mips_def_t mips_def_t;
    127 
    128 #define MIPS_SHADOW_SET_MAX 16
    129 #define MIPS_TC_MAX 5
    130 #define MIPS_FPU_MAX 1
    131 #define MIPS_DSP_ACC 4
    132 #define MIPS_KSCRATCH_NUM 6
    133 #define MIPS_MAAR_MAX 16 /* Must be an even number. */
    134 
    135 
    136 /*
    137  *     Summary of CP0 registers
    138  *     ========================
    139  *
    140  *
    141  *     Register 0        Register 1        Register 2        Register 3
    142  *     ----------        ----------        ----------        ----------
    143  *
    144  * 0   Index             Random            EntryLo0          EntryLo1
    145  * 1   MVPControl        VPEControl        TCStatus          GlobalNumber
    146  * 2   MVPConf0          VPEConf0          TCBind
    147  * 3   MVPConf1          VPEConf1          TCRestart
    148  * 4   VPControl         YQMask            TCHalt
    149  * 5                     VPESchedule       TCContext
    150  * 6                     VPEScheFBack      TCSchedule
    151  * 7                     VPEOpt            TCScheFBack       TCOpt
    152  *
    153  *
    154  *     Register 4        Register 5        Register 6        Register 7
    155  *     ----------        ----------        ----------        ----------
    156  *
    157  * 0   Context           PageMask          Wired             HWREna
    158  * 1   ContextConfig     PageGrain         SRSConf0
    159  * 2   UserLocal         SegCtl0           SRSConf1
    160  * 3   XContextConfig    SegCtl1           SRSConf2
    161  * 4   DebugContextID    SegCtl2           SRSConf3
    162  * 5   MemoryMapID       PWBase            SRSConf4
    163  * 6                     PWField           PWCtl
    164  * 7                     PWSize
    165  *
    166  *
    167  *     Register 8        Register 9        Register 10       Register 11
    168  *     ----------        ----------        -----------       -----------
    169  *
    170  * 0   BadVAddr          Count             EntryHi           Compare
    171  * 1   BadInstr
    172  * 2   BadInstrP
    173  * 3   BadInstrX
    174  * 4                                       GuestCtl1         GuestCtl0Ext
    175  * 5                                       GuestCtl2
    176  * 6                     SAARI             GuestCtl3
    177  * 7                     SAAR
    178  *
    179  *
    180  *     Register 12       Register 13       Register 14       Register 15
    181  *     -----------       -----------       -----------       -----------
    182  *
    183  * 0   Status            Cause             EPC               PRId
    184  * 1   IntCtl                                                EBase
    185  * 2   SRSCtl                              NestedEPC         CDMMBase
    186  * 3   SRSMap                                                CMGCRBase
    187  * 4   View_IPL          View_RIPL                           BEVVA
    188  * 5   SRSMap2           NestedExc
    189  * 6   GuestCtl0
    190  * 7   GTOffset
    191  *
    192  *
    193  *     Register 16       Register 17       Register 18       Register 19
    194  *     -----------       -----------       -----------       -----------
    195  *
    196  * 0   Config            LLAddr            WatchLo0          WatchHi
    197  * 1   Config1           MAAR              WatchLo1          WatchHi
    198  * 2   Config2           MAARI             WatchLo2          WatchHi
    199  * 3   Config3                             WatchLo3          WatchHi
    200  * 4   Config4                             WatchLo4          WatchHi
    201  * 5   Config5                             WatchLo5          WatchHi
    202  * 6   Config6                             WatchLo6          WatchHi
    203  * 7   Config7                             WatchLo7          WatchHi
    204  *
    205  *
    206  *     Register 20       Register 21       Register 22       Register 23
    207  *     -----------       -----------       -----------       -----------
    208  *
    209  * 0   XContext                                              Debug
    210  * 1                                                         TraceControl
    211  * 2                                                         TraceControl2
    212  * 3                                                         UserTraceData1
    213  * 4                                                         TraceIBPC
    214  * 5                                                         TraceDBPC
    215  * 6                                                         Debug2
    216  * 7
    217  *
    218  *
    219  *     Register 24       Register 25       Register 26       Register 27
    220  *     -----------       -----------       -----------       -----------
    221  *
    222  * 0   DEPC              PerfCnt            ErrCtl          CacheErr
    223  * 1                     PerfCnt
    224  * 2   TraceControl3     PerfCnt
    225  * 3   UserTraceData2    PerfCnt
    226  * 4                     PerfCnt
    227  * 5                     PerfCnt
    228  * 6                     PerfCnt
    229  * 7                     PerfCnt
    230  *
    231  *
    232  *     Register 28       Register 29       Register 30       Register 31
    233  *     -----------       -----------       -----------       -----------
    234  *
    235  * 0   DataLo            DataHi            ErrorEPC          DESAVE
    236  * 1   TagLo             TagHi
    237  * 2   DataLo1           DataHi1                             KScratch<n>
    238  * 3   TagLo1            TagHi1                              KScratch<n>
    239  * 4   DataLo2           DataHi2                             KScratch<n>
    240  * 5   TagLo2            TagHi2                              KScratch<n>
    241  * 6   DataLo3           DataHi3                             KScratch<n>
    242  * 7   TagLo3            TagHi3                              KScratch<n>
    243  *
    244  */
    245 #define CP0_REGISTER_00     0
    246 #define CP0_REGISTER_01     1
    247 #define CP0_REGISTER_02     2
    248 #define CP0_REGISTER_03     3
    249 #define CP0_REGISTER_04     4
    250 #define CP0_REGISTER_05     5
    251 #define CP0_REGISTER_06     6
    252 #define CP0_REGISTER_07     7
    253 #define CP0_REGISTER_08     8
    254 #define CP0_REGISTER_09     9
    255 #define CP0_REGISTER_10    10
    256 #define CP0_REGISTER_11    11
    257 #define CP0_REGISTER_12    12
    258 #define CP0_REGISTER_13    13
    259 #define CP0_REGISTER_14    14
    260 #define CP0_REGISTER_15    15
    261 #define CP0_REGISTER_16    16
    262 #define CP0_REGISTER_17    17
    263 #define CP0_REGISTER_18    18
    264 #define CP0_REGISTER_19    19
    265 #define CP0_REGISTER_20    20
    266 #define CP0_REGISTER_21    21
    267 #define CP0_REGISTER_22    22
    268 #define CP0_REGISTER_23    23
    269 #define CP0_REGISTER_24    24
    270 #define CP0_REGISTER_25    25
    271 #define CP0_REGISTER_26    26
    272 #define CP0_REGISTER_27    27
    273 #define CP0_REGISTER_28    28
    274 #define CP0_REGISTER_29    29
    275 #define CP0_REGISTER_30    30
    276 #define CP0_REGISTER_31    31
    277 
    278 
    279 /* CP0 Register 00 */
    280 #define CP0_REG00__INDEX           0
    281 #define CP0_REG00__MVPCONTROL      1
    282 #define CP0_REG00__MVPCONF0        2
    283 #define CP0_REG00__MVPCONF1        3
    284 #define CP0_REG00__VPCONTROL       4
    285 /* CP0 Register 01 */
    286 #define CP0_REG01__RANDOM          0
    287 #define CP0_REG01__VPECONTROL      1
    288 #define CP0_REG01__VPECONF0        2
    289 #define CP0_REG01__VPECONF1        3
    290 #define CP0_REG01__YQMASK          4
    291 #define CP0_REG01__VPESCHEDULE     5
    292 #define CP0_REG01__VPESCHEFBACK    6
    293 #define CP0_REG01__VPEOPT          7
    294 /* CP0 Register 02 */
    295 #define CP0_REG02__ENTRYLO0        0
    296 #define CP0_REG02__TCSTATUS        1
    297 #define CP0_REG02__TCBIND          2
    298 #define CP0_REG02__TCRESTART       3
    299 #define CP0_REG02__TCHALT          4
    300 #define CP0_REG02__TCCONTEXT       5
    301 #define CP0_REG02__TCSCHEDULE      6
    302 #define CP0_REG02__TCSCHEFBACK     7
    303 /* CP0 Register 03 */
    304 #define CP0_REG03__ENTRYLO1        0
    305 #define CP0_REG03__GLOBALNUM       1
    306 #define CP0_REG03__TCOPT           7
    307 /* CP0 Register 04 */
    308 #define CP0_REG04__CONTEXT         0
    309 #define CP0_REG04__CONTEXTCONFIG   1
    310 #define CP0_REG04__USERLOCAL       2
    311 #define CP0_REG04__XCONTEXTCONFIG  3
    312 #define CP0_REG04__DBGCONTEXTID    4
    313 #define CP0_REG04__MMID            5
    314 /* CP0 Register 05 */
    315 #define CP0_REG05__PAGEMASK        0
    316 #define CP0_REG05__PAGEGRAIN       1
    317 #define CP0_REG05__SEGCTL0         2
    318 #define CP0_REG05__SEGCTL1         3
    319 #define CP0_REG05__SEGCTL2         4
    320 #define CP0_REG05__PWBASE          5
    321 #define CP0_REG05__PWFIELD         6
    322 #define CP0_REG05__PWSIZE          7
    323 /* CP0 Register 06 */
    324 #define CP0_REG06__WIRED           0
    325 #define CP0_REG06__SRSCONF0        1
    326 #define CP0_REG06__SRSCONF1        2
    327 #define CP0_REG06__SRSCONF2        3
    328 #define CP0_REG06__SRSCONF3        4
    329 #define CP0_REG06__SRSCONF4        5
    330 #define CP0_REG06__PWCTL           6
    331 /* CP0 Register 07 */
    332 #define CP0_REG07__HWRENA          0
    333 /* CP0 Register 08 */
    334 #define CP0_REG08__BADVADDR        0
    335 #define CP0_REG08__BADINSTR        1
    336 #define CP0_REG08__BADINSTRP       2
    337 #define CP0_REG08__BADINSTRX       3
    338 /* CP0 Register 09 */
    339 #define CP0_REG09__COUNT           0
    340 #define CP0_REG09__SAARI           6
    341 #define CP0_REG09__SAAR            7
    342 /* CP0 Register 10 */
    343 #define CP0_REG10__ENTRYHI         0
    344 #define CP0_REG10__GUESTCTL1       4
    345 #define CP0_REG10__GUESTCTL2       5
    346 #define CP0_REG10__GUESTCTL3       6
    347 /* CP0 Register 11 */
    348 #define CP0_REG11__COMPARE         0
    349 #define CP0_REG11__GUESTCTL0EXT    4
    350 /* CP0 Register 12 */
    351 #define CP0_REG12__STATUS          0
    352 #define CP0_REG12__INTCTL          1
    353 #define CP0_REG12__SRSCTL          2
    354 #define CP0_REG12__SRSMAP          3
    355 #define CP0_REG12__VIEW_IPL        4
    356 #define CP0_REG12__SRSMAP2         5
    357 #define CP0_REG12__GUESTCTL0       6
    358 #define CP0_REG12__GTOFFSET        7
    359 /* CP0 Register 13 */
    360 #define CP0_REG13__CAUSE           0
    361 #define CP0_REG13__VIEW_RIPL       4
    362 #define CP0_REG13__NESTEDEXC       5
    363 /* CP0 Register 14 */
    364 #define CP0_REG14__EPC             0
    365 #define CP0_REG14__NESTEDEPC       2
    366 /* CP0 Register 15 */
    367 #define CP0_REG15__PRID            0
    368 #define CP0_REG15__EBASE           1
    369 #define CP0_REG15__CDMMBASE        2
    370 #define CP0_REG15__CMGCRBASE       3
    371 #define CP0_REG15__BEVVA           4
    372 /* CP0 Register 16 */
    373 #define CP0_REG16__CONFIG          0
    374 #define CP0_REG16__CONFIG1         1
    375 #define CP0_REG16__CONFIG2         2
    376 #define CP0_REG16__CONFIG3         3
    377 #define CP0_REG16__CONFIG4         4
    378 #define CP0_REG16__CONFIG5         5
    379 #define CP0_REG16__CONFIG6         6
    380 #define CP0_REG16__CONFIG7         7
    381 /* CP0 Register 17 */
    382 #define CP0_REG17__LLADDR          0
    383 #define CP0_REG17__MAAR            1
    384 #define CP0_REG17__MAARI           2
    385 /* CP0 Register 18 */
    386 #define CP0_REG18__WATCHLO0        0
    387 #define CP0_REG18__WATCHLO1        1
    388 #define CP0_REG18__WATCHLO2        2
    389 #define CP0_REG18__WATCHLO3        3
    390 #define CP0_REG18__WATCHLO4        4
    391 #define CP0_REG18__WATCHLO5        5
    392 #define CP0_REG18__WATCHLO6        6
    393 #define CP0_REG18__WATCHLO7        7
    394 /* CP0 Register 19 */
    395 #define CP0_REG19__WATCHHI0        0
    396 #define CP0_REG19__WATCHHI1        1
    397 #define CP0_REG19__WATCHHI2        2
    398 #define CP0_REG19__WATCHHI3        3
    399 #define CP0_REG19__WATCHHI4        4
    400 #define CP0_REG19__WATCHHI5        5
    401 #define CP0_REG19__WATCHHI6        6
    402 #define CP0_REG19__WATCHHI7        7
    403 /* CP0 Register 20 */
    404 #define CP0_REG20__XCONTEXT        0
    405 /* CP0 Register 21 */
    406 /* CP0 Register 22 */
    407 /* CP0 Register 23 */
    408 #define CP0_REG23__DEBUG           0
    409 #define CP0_REG23__TRACECONTROL    1
    410 #define CP0_REG23__TRACECONTROL2   2
    411 #define CP0_REG23__USERTRACEDATA1  3
    412 #define CP0_REG23__TRACEIBPC       4
    413 #define CP0_REG23__TRACEDBPC       5
    414 #define CP0_REG23__DEBUG2          6
    415 /* CP0 Register 24 */
    416 #define CP0_REG24__DEPC            0
    417 /* CP0 Register 25 */
    418 #define CP0_REG25__PERFCTL0        0
    419 #define CP0_REG25__PERFCNT0        1
    420 #define CP0_REG25__PERFCTL1        2
    421 #define CP0_REG25__PERFCNT1        3
    422 #define CP0_REG25__PERFCTL2        4
    423 #define CP0_REG25__PERFCNT2        5
    424 #define CP0_REG25__PERFCTL3        6
    425 #define CP0_REG25__PERFCNT3        7
    426 /* CP0 Register 26 */
    427 #define CP0_REG26__ERRCTL          0
    428 /* CP0 Register 27 */
    429 #define CP0_REG27__CACHERR         0
    430 /* CP0 Register 28 */
    431 #define CP0_REG28__TAGLO           0
    432 #define CP0_REG28__DATALO          1
    433 #define CP0_REG28__TAGLO1          2
    434 #define CP0_REG28__DATALO1         3
    435 #define CP0_REG28__TAGLO2          4
    436 #define CP0_REG28__DATALO2         5
    437 #define CP0_REG28__TAGLO3          6
    438 #define CP0_REG28__DATALO3         7
    439 /* CP0 Register 29 */
    440 #define CP0_REG29__TAGHI           0
    441 #define CP0_REG29__DATAHI          1
    442 #define CP0_REG29__TAGHI1          2
    443 #define CP0_REG29__DATAHI1         3
    444 #define CP0_REG29__TAGHI2          4
    445 #define CP0_REG29__DATAHI2         5
    446 #define CP0_REG29__TAGHI3          6
    447 #define CP0_REG29__DATAHI3         7
    448 /* CP0 Register 30 */
    449 #define CP0_REG30__ERROREPC        0
    450 /* CP0 Register 31 */
    451 #define CP0_REG31__DESAVE          0
    452 #define CP0_REG31__KSCRATCH1       2
    453 #define CP0_REG31__KSCRATCH2       3
    454 #define CP0_REG31__KSCRATCH3       4
    455 #define CP0_REG31__KSCRATCH4       5
    456 #define CP0_REG31__KSCRATCH5       6
    457 #define CP0_REG31__KSCRATCH6       7
    458 
    459 
    460 typedef struct TCState TCState;
    461 struct TCState {
    462     target_ulong gpr[32];
    463 #if defined(TARGET_MIPS64)
    464     /*
    465      * For CPUs using 128-bit GPR registers, we put the lower halves in gpr[])
    466      * and the upper halves in gpr_hi[].
    467      */
    468     uint64_t gpr_hi[32];
    469 #endif /* TARGET_MIPS64 */
    470     target_ulong PC;
    471     target_ulong HI[MIPS_DSP_ACC];
    472     target_ulong LO[MIPS_DSP_ACC];
    473     target_ulong ACX[MIPS_DSP_ACC];
    474     target_ulong DSPControl;
    475     int32_t CP0_TCStatus;
    476 #define CP0TCSt_TCU3    31
    477 #define CP0TCSt_TCU2    30
    478 #define CP0TCSt_TCU1    29
    479 #define CP0TCSt_TCU0    28
    480 #define CP0TCSt_TMX     27
    481 #define CP0TCSt_RNST    23
    482 #define CP0TCSt_TDS     21
    483 #define CP0TCSt_DT      20
    484 #define CP0TCSt_DA      15
    485 #define CP0TCSt_A       13
    486 #define CP0TCSt_TKSU    11
    487 #define CP0TCSt_IXMT    10
    488 #define CP0TCSt_TASID   0
    489     int32_t CP0_TCBind;
    490 #define CP0TCBd_CurTC   21
    491 #define CP0TCBd_TBE     17
    492 #define CP0TCBd_CurVPE  0
    493     target_ulong CP0_TCHalt;
    494     target_ulong CP0_TCContext;
    495     target_ulong CP0_TCSchedule;
    496     target_ulong CP0_TCScheFBack;
    497     int32_t CP0_Debug_tcstatus;
    498     target_ulong CP0_UserLocal;
    499 
    500     int32_t msacsr;
    501 
    502 #define MSACSR_FS       24
    503 #define MSACSR_FS_MASK  (1 << MSACSR_FS)
    504 #define MSACSR_NX       18
    505 #define MSACSR_NX_MASK  (1 << MSACSR_NX)
    506 #define MSACSR_CEF      2
    507 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF)
    508 #define MSACSR_RM       0
    509 #define MSACSR_RM_MASK  (0x3 << MSACSR_RM)
    510 #define MSACSR_MASK     (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \
    511         MSACSR_FS_MASK)
    512 
    513     float_status msa_fp_status;
    514 
    515 #define NUMBER_OF_MXU_REGISTERS 16
    516     target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
    517     target_ulong mxu_cr;
    518 #define MXU_CR_LC       31
    519 #define MXU_CR_RC       30
    520 #define MXU_CR_BIAS     2
    521 #define MXU_CR_RD_EN    1
    522 #define MXU_CR_MXU_EN   0
    523 
    524 };
    525 
    526 struct MIPSITUState;
    527 typedef struct CPUArchState {
    528     TCState active_tc;
    529     CPUMIPSFPUContext active_fpu;
    530 
    531     uint32_t current_tc;
    532     uint32_t current_fpu;
    533 
    534     uint32_t SEGBITS;
    535     uint32_t PABITS;
    536 #if defined(TARGET_MIPS64)
    537 # define PABITS_BASE 36
    538 #else
    539 # define PABITS_BASE 32
    540 #endif
    541     target_ulong SEGMask;
    542     uint64_t PAMask;
    543 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
    544 
    545     int32_t msair;
    546 #define MSAIR_ProcID    8
    547 #define MSAIR_Rev       0
    548 
    549 /*
    550  * CP0 Register 0
    551  */
    552     int32_t CP0_Index;
    553     /* CP0_MVP* are per MVP registers. */
    554     int32_t CP0_VPControl;
    555 #define CP0VPCtl_DIS    0
    556 /*
    557  * CP0 Register 1
    558  */
    559     int32_t CP0_Random;
    560     int32_t CP0_VPEControl;
    561 #define CP0VPECo_YSI    21
    562 #define CP0VPECo_GSI    20
    563 #define CP0VPECo_EXCPT  16
    564 #define CP0VPECo_TE     15
    565 #define CP0VPECo_TargTC 0
    566     int32_t CP0_VPEConf0;
    567 #define CP0VPEC0_M      31
    568 #define CP0VPEC0_XTC    21
    569 #define CP0VPEC0_TCS    19
    570 #define CP0VPEC0_SCS    18
    571 #define CP0VPEC0_DSC    17
    572 #define CP0VPEC0_ICS    16
    573 #define CP0VPEC0_MVP    1
    574 #define CP0VPEC0_VPA    0
    575     int32_t CP0_VPEConf1;
    576 #define CP0VPEC1_NCX    20
    577 #define CP0VPEC1_NCP2   10
    578 #define CP0VPEC1_NCP1   0
    579     target_ulong CP0_YQMask;
    580     target_ulong CP0_VPESchedule;
    581     target_ulong CP0_VPEScheFBack;
    582     int32_t CP0_VPEOpt;
    583 #define CP0VPEOpt_IWX7  15
    584 #define CP0VPEOpt_IWX6  14
    585 #define CP0VPEOpt_IWX5  13
    586 #define CP0VPEOpt_IWX4  12
    587 #define CP0VPEOpt_IWX3  11
    588 #define CP0VPEOpt_IWX2  10
    589 #define CP0VPEOpt_IWX1  9
    590 #define CP0VPEOpt_IWX0  8
    591 #define CP0VPEOpt_DWX7  7
    592 #define CP0VPEOpt_DWX6  6
    593 #define CP0VPEOpt_DWX5  5
    594 #define CP0VPEOpt_DWX4  4
    595 #define CP0VPEOpt_DWX3  3
    596 #define CP0VPEOpt_DWX2  2
    597 #define CP0VPEOpt_DWX1  1
    598 #define CP0VPEOpt_DWX0  0
    599 /*
    600  * CP0 Register 2
    601  */
    602     uint64_t CP0_EntryLo0;
    603 /*
    604  * CP0 Register 3
    605  */
    606     uint64_t CP0_EntryLo1;
    607 #if defined(TARGET_MIPS64)
    608 # define CP0EnLo_RI 63
    609 # define CP0EnLo_XI 62
    610 #else
    611 # define CP0EnLo_RI 31
    612 # define CP0EnLo_XI 30
    613 #endif
    614     int32_t CP0_GlobalNumber;
    615 #define CP0GN_VPId 0
    616 /*
    617  * CP0 Register 4
    618  */
    619     target_ulong CP0_Context;
    620     int32_t CP0_MemoryMapID;
    621 /*
    622  * CP0 Register 5
    623  */
    624     int32_t CP0_PageMask;
    625 #define CP0PM_MASK 13
    626     int32_t CP0_PageGrain_rw_bitmask;
    627     int32_t CP0_PageGrain;
    628 #define CP0PG_RIE 31
    629 #define CP0PG_XIE 30
    630 #define CP0PG_ELPA 29
    631 #define CP0PG_IEC 27
    632     target_ulong CP0_SegCtl0;
    633     target_ulong CP0_SegCtl1;
    634     target_ulong CP0_SegCtl2;
    635 #define CP0SC_PA        9
    636 #define CP0SC_PA_MASK   (0x7FULL << CP0SC_PA)
    637 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA)
    638 #define CP0SC_AM        4
    639 #define CP0SC_AM_MASK   (0x7ULL << CP0SC_AM)
    640 #define CP0SC_AM_UK     0ULL
    641 #define CP0SC_AM_MK     1ULL
    642 #define CP0SC_AM_MSK    2ULL
    643 #define CP0SC_AM_MUSK   3ULL
    644 #define CP0SC_AM_MUSUK  4ULL
    645 #define CP0SC_AM_USK    5ULL
    646 #define CP0SC_AM_UUSK   7ULL
    647 #define CP0SC_EU        3
    648 #define CP0SC_EU_MASK   (1ULL << CP0SC_EU)
    649 #define CP0SC_C         0
    650 #define CP0SC_C_MASK    (0x7ULL << CP0SC_C)
    651 #define CP0SC_MASK      (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
    652                          CP0SC_PA_MASK)
    653 #define CP0SC_1GMASK    (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
    654                          CP0SC_PA_1GMASK)
    655 #define CP0SC0_MASK     (CP0SC_MASK | (CP0SC_MASK << 16))
    656 #define CP0SC1_XAM      59
    657 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM)
    658 #define CP0SC1_MASK     (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK)
    659 #define CP0SC2_XR       56
    660 #define CP0SC2_XR_MASK  (0xFFULL << CP0SC2_XR)
    661 #define CP0SC2_MASK     (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK)
    662     target_ulong CP0_PWBase;
    663     target_ulong CP0_PWField;
    664 #if defined(TARGET_MIPS64)
    665 #define CP0PF_BDI  32    /* 37..32 */
    666 #define CP0PF_GDI  24    /* 29..24 */
    667 #define CP0PF_UDI  18    /* 23..18 */
    668 #define CP0PF_MDI  12    /* 17..12 */
    669 #define CP0PF_PTI  6     /* 11..6  */
    670 #define CP0PF_PTEI 0     /*  5..0  */
    671 #else
    672 #define CP0PF_GDW  24    /* 29..24 */
    673 #define CP0PF_UDW  18    /* 23..18 */
    674 #define CP0PF_MDW  12    /* 17..12 */
    675 #define CP0PF_PTW  6     /* 11..6  */
    676 #define CP0PF_PTEW 0     /*  5..0  */
    677 #endif
    678     target_ulong CP0_PWSize;
    679 #if defined(TARGET_MIPS64)
    680 #define CP0PS_BDW  32    /* 37..32 */
    681 #endif
    682 #define CP0PS_PS   30
    683 #define CP0PS_GDW  24    /* 29..24 */
    684 #define CP0PS_UDW  18    /* 23..18 */
    685 #define CP0PS_MDW  12    /* 17..12 */
    686 #define CP0PS_PTW  6     /* 11..6  */
    687 #define CP0PS_PTEW 0     /*  5..0  */
    688 /*
    689  * CP0 Register 6
    690  */
    691     int32_t CP0_Wired;
    692     int32_t CP0_PWCtl;
    693 #define CP0PC_PWEN      31
    694 #if defined(TARGET_MIPS64)
    695 #define CP0PC_PWDIREXT  30
    696 #define CP0PC_XK        28
    697 #define CP0PC_XS        27
    698 #define CP0PC_XU        26
    699 #endif
    700 #define CP0PC_DPH       7
    701 #define CP0PC_HUGEPG    6
    702 #define CP0PC_PSN       0     /*  5..0  */
    703     int32_t CP0_SRSConf0_rw_bitmask;
    704     int32_t CP0_SRSConf0;
    705 #define CP0SRSC0_M      31
    706 #define CP0SRSC0_SRS3   20
    707 #define CP0SRSC0_SRS2   10
    708 #define CP0SRSC0_SRS1   0
    709     int32_t CP0_SRSConf1_rw_bitmask;
    710     int32_t CP0_SRSConf1;
    711 #define CP0SRSC1_M      31
    712 #define CP0SRSC1_SRS6   20
    713 #define CP0SRSC1_SRS5   10
    714 #define CP0SRSC1_SRS4   0
    715     int32_t CP0_SRSConf2_rw_bitmask;
    716     int32_t CP0_SRSConf2;
    717 #define CP0SRSC2_M      31
    718 #define CP0SRSC2_SRS9   20
    719 #define CP0SRSC2_SRS8   10
    720 #define CP0SRSC2_SRS7   0
    721     int32_t CP0_SRSConf3_rw_bitmask;
    722     int32_t CP0_SRSConf3;
    723 #define CP0SRSC3_M      31
    724 #define CP0SRSC3_SRS12  20
    725 #define CP0SRSC3_SRS11  10
    726 #define CP0SRSC3_SRS10  0
    727     int32_t CP0_SRSConf4_rw_bitmask;
    728     int32_t CP0_SRSConf4;
    729 #define CP0SRSC4_SRS15  20
    730 #define CP0SRSC4_SRS14  10
    731 #define CP0SRSC4_SRS13  0
    732 /*
    733  * CP0 Register 7
    734  */
    735     int32_t CP0_HWREna;
    736 /*
    737  * CP0 Register 8
    738  */
    739     target_ulong CP0_BadVAddr;
    740     uint32_t CP0_BadInstr;
    741     uint32_t CP0_BadInstrP;
    742     uint32_t CP0_BadInstrX;
    743 /*
    744  * CP0 Register 9
    745  */
    746     int32_t CP0_Count;
    747     uint32_t CP0_SAARI;
    748 #define CP0SAARI_TARGET 0    /*  5..0  */
    749     uint64_t CP0_SAAR[2];
    750 #define CP0SAAR_BASE    12   /* 43..12 */
    751 #define CP0SAAR_SIZE    1    /*  5..1  */
    752 #define CP0SAAR_EN      0
    753 /*
    754  * CP0 Register 10
    755  */
    756     target_ulong CP0_EntryHi;
    757 #define CP0EnHi_EHINV 10
    758     target_ulong CP0_EntryHi_ASID_mask;
    759 /*
    760  * CP0 Register 11
    761  */
    762     int32_t CP0_Compare;
    763 /*
    764  * CP0 Register 12
    765  */
    766     int32_t CP0_Status;
    767 #define CP0St_CU3   31
    768 #define CP0St_CU2   30
    769 #define CP0St_CU1   29
    770 #define CP0St_CU0   28
    771 #define CP0St_RP    27
    772 #define CP0St_FR    26
    773 #define CP0St_RE    25
    774 #define CP0St_MX    24
    775 #define CP0St_PX    23
    776 #define CP0St_BEV   22
    777 #define CP0St_TS    21
    778 #define CP0St_SR    20
    779 #define CP0St_NMI   19
    780 #define CP0St_IM    8
    781 #define CP0St_KX    7
    782 #define CP0St_SX    6
    783 #define CP0St_UX    5
    784 #define CP0St_KSU   3
    785 #define CP0St_ERL   2
    786 #define CP0St_EXL   1
    787 #define CP0St_IE    0
    788     int32_t CP0_IntCtl;
    789 #define CP0IntCtl_IPTI 29
    790 #define CP0IntCtl_IPPCI 26
    791 #define CP0IntCtl_VS 5
    792     int32_t CP0_SRSCtl;
    793 #define CP0SRSCtl_HSS 26
    794 #define CP0SRSCtl_EICSS 18
    795 #define CP0SRSCtl_ESS 12
    796 #define CP0SRSCtl_PSS 6
    797 #define CP0SRSCtl_CSS 0
    798     int32_t CP0_SRSMap;
    799 #define CP0SRSMap_SSV7 28
    800 #define CP0SRSMap_SSV6 24
    801 #define CP0SRSMap_SSV5 20
    802 #define CP0SRSMap_SSV4 16
    803 #define CP0SRSMap_SSV3 12
    804 #define CP0SRSMap_SSV2 8
    805 #define CP0SRSMap_SSV1 4
    806 #define CP0SRSMap_SSV0 0
    807 /*
    808  * CP0 Register 13
    809  */
    810     int32_t CP0_Cause;
    811 #define CP0Ca_BD   31
    812 #define CP0Ca_TI   30
    813 #define CP0Ca_CE   28
    814 #define CP0Ca_DC   27
    815 #define CP0Ca_PCI  26
    816 #define CP0Ca_IV   23
    817 #define CP0Ca_WP   22
    818 #define CP0Ca_IP    8
    819 #define CP0Ca_IP_mask 0x0000FF00
    820 #define CP0Ca_EC    2
    821 /*
    822  * CP0 Register 14
    823  */
    824     target_ulong CP0_EPC;
    825 /*
    826  * CP0 Register 15
    827  */
    828     int32_t CP0_PRid;
    829     target_ulong CP0_EBase;
    830     target_ulong CP0_EBaseWG_rw_bitmask;
    831 #define CP0EBase_WG 11
    832     target_ulong CP0_CMGCRBase;
    833 /*
    834  * CP0 Register 16 (after Release 1)
    835  */
    836     int32_t CP0_Config0;
    837 #define CP0C0_M    31
    838 #define CP0C0_K23  28    /* 30..28 */
    839 #define CP0C0_KU   25    /* 27..25 */
    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_NAPCGEN       2
    984 #define CP0C7_UNIMUEN       1
    985 #define CP0C7_VFPUCGEN      0
    986     uint64_t CP0_LLAddr;
    987     uint64_t CP0_MAAR[MIPS_MAAR_MAX];
    988     int32_t CP0_MAARI;
    989     /* XXX: Maybe make LLAddr per-TC? */
    990 /*
    991  * CP0 Register 17
    992  */
    993     target_ulong lladdr; /* LL virtual address compared against SC */
    994     target_ulong llval;
    995     uint64_t llval_wp;
    996     uint32_t llnewval_wp;
    997     uint64_t CP0_LLAddr_rw_bitmask;
    998     int CP0_LLAddr_shift;
    999 /*
   1000  * CP0 Register 18
   1001  */
   1002     target_ulong CP0_WatchLo[8];
   1003 /*
   1004  * CP0 Register 19
   1005  */
   1006     uint64_t CP0_WatchHi[8];
   1007 #define CP0WH_ASID 16
   1008 #define CP0WH_M    31
   1009 /*
   1010  * CP0 Register 20
   1011  */
   1012     target_ulong CP0_XContext;
   1013     int32_t CP0_Framemask;
   1014 /*
   1015  * CP0 Register 23
   1016  */
   1017     int32_t CP0_Debug;
   1018 #define CP0DB_DBD  31
   1019 #define CP0DB_DM   30
   1020 #define CP0DB_LSNM 28
   1021 #define CP0DB_Doze 27
   1022 #define CP0DB_Halt 26
   1023 #define CP0DB_CNT  25
   1024 #define CP0DB_IBEP 24
   1025 #define CP0DB_DBEP 21
   1026 #define CP0DB_IEXI 20
   1027 #define CP0DB_VER  15
   1028 #define CP0DB_DEC  10
   1029 #define CP0DB_SSt  8
   1030 #define CP0DB_DINT 5
   1031 #define CP0DB_DIB  4
   1032 #define CP0DB_DDBS 3
   1033 #define CP0DB_DDBL 2
   1034 #define CP0DB_DBp  1
   1035 #define CP0DB_DSS  0
   1036 /*
   1037  * CP0 Register 24
   1038  */
   1039     target_ulong CP0_DEPC;
   1040 /*
   1041  * CP0 Register 25
   1042  */
   1043     int32_t CP0_Performance0;
   1044 /*
   1045  * CP0 Register 26
   1046  */
   1047     int32_t CP0_ErrCtl;
   1048 #define CP0EC_WST 29
   1049 #define CP0EC_SPR 28
   1050 #define CP0EC_ITC 26
   1051 /*
   1052  * CP0 Register 28
   1053  */
   1054     uint64_t CP0_TagLo;
   1055     int32_t CP0_DataLo;
   1056 /*
   1057  * CP0 Register 29
   1058  */
   1059     int32_t CP0_TagHi;
   1060     int32_t CP0_DataHi;
   1061 /*
   1062  * CP0 Register 30
   1063  */
   1064     target_ulong CP0_ErrorEPC;
   1065 /*
   1066  * CP0 Register 31
   1067  */
   1068     int32_t CP0_DESAVE;
   1069     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
   1070 
   1071     /* We waste some space so we can handle shadow registers like TCs. */
   1072     TCState tcs[MIPS_SHADOW_SET_MAX];
   1073     CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
   1074     /* QEMU */
   1075     int error_code;
   1076 #define EXCP_TLB_NOMATCH   0x1
   1077 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
   1078     uint32_t hflags;    /* CPU State */
   1079     /* TMASK defines different execution modes */
   1080 #define MIPS_HFLAG_TMASK  0x3F5807FF
   1081 #define MIPS_HFLAG_MODE   0x00007 /* execution modes                    */
   1082     /*
   1083      * The KSU flags must be the lowest bits in hflags. The flag order
   1084      * must be the same as defined for CP0 Status. This allows to use
   1085      * the bits as the value of mmu_idx.
   1086      */
   1087 #define MIPS_HFLAG_KSU    0x00003 /* kernel/supervisor/user mode mask   */
   1088 #define MIPS_HFLAG_UM     0x00002 /* user mode flag                     */
   1089 #define MIPS_HFLAG_SM     0x00001 /* supervisor mode flag               */
   1090 #define MIPS_HFLAG_KM     0x00000 /* kernel mode flag                   */
   1091 #define MIPS_HFLAG_DM     0x00004 /* Debug mode                         */
   1092 #define MIPS_HFLAG_64     0x00008 /* 64-bit instructions enabled        */
   1093 #define MIPS_HFLAG_CP0    0x00010 /* CP0 enabled                        */
   1094 #define MIPS_HFLAG_FPU    0x00020 /* FPU enabled                        */
   1095 #define MIPS_HFLAG_F64    0x00040 /* 64-bit FPU enabled                 */
   1096     /*
   1097      * True if the MIPS IV COP1X instructions can be used.  This also
   1098      * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
   1099      * and RSQRT.D.
   1100      */
   1101 #define MIPS_HFLAG_COP1X  0x00080 /* COP1X instructions enabled         */
   1102 #define MIPS_HFLAG_RE     0x00100 /* Reversed endianness                */
   1103 #define MIPS_HFLAG_AWRAP  0x00200 /* 32-bit compatibility address wrapping */
   1104 #define MIPS_HFLAG_M16    0x00400 /* MIPS16 mode flag                   */
   1105 #define MIPS_HFLAG_M16_SHIFT 10
   1106     /*
   1107      * If translation is interrupted between the branch instruction and
   1108      * the delay slot, record what type of branch it is so that we can
   1109      * resume translation properly.  It might be possible to reduce
   1110      * this from three bits to two.
   1111      */
   1112 #define MIPS_HFLAG_BMASK_BASE  0x803800
   1113 #define MIPS_HFLAG_B      0x00800 /* Unconditional branch               */
   1114 #define MIPS_HFLAG_BC     0x01000 /* Conditional branch                 */
   1115 #define MIPS_HFLAG_BL     0x01800 /* Likely branch                      */
   1116 #define MIPS_HFLAG_BR     0x02000 /* branch to register (can't link TB) */
   1117     /* Extra flags about the current pending branch.  */
   1118 #define MIPS_HFLAG_BMASK_EXT 0x7C000
   1119 #define MIPS_HFLAG_B16    0x04000 /* branch instruction was 16 bits     */
   1120 #define MIPS_HFLAG_BDS16  0x08000 /* branch requires 16-bit delay slot  */
   1121 #define MIPS_HFLAG_BDS32  0x10000 /* branch requires 32-bit delay slot  */
   1122 #define MIPS_HFLAG_BDS_STRICT  0x20000 /* Strict delay slot size */
   1123 #define MIPS_HFLAG_BX     0x40000 /* branch exchanges execution mode    */
   1124 #define MIPS_HFLAG_BMASK  (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
   1125     /* MIPS DSP resources access. */
   1126 #define MIPS_HFLAG_DSP    0x080000   /* Enable access to DSP resources.    */
   1127 #define MIPS_HFLAG_DSP_R2 0x100000   /* Enable access to DSP R2 resources. */
   1128 #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */
   1129     /* Extra flag about HWREna register. */
   1130 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
   1131 #define MIPS_HFLAG_SBRI  0x400000 /* R6 SDBBP causes RI excpt. in user mode */
   1132 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot                   */
   1133 #define MIPS_HFLAG_MSA   0x1000000
   1134 #define MIPS_HFLAG_FRE   0x2000000 /* FRE enabled */
   1135 #define MIPS_HFLAG_ELPA  0x4000000
   1136 #define MIPS_HFLAG_ITC_CACHE  0x8000000 /* CACHE instr. operates on ITC tag */
   1137 #define MIPS_HFLAG_ERL   0x10000000 /* error level flag */
   1138     target_ulong btarget;        /* Jump / branch target               */
   1139     target_ulong bcond;          /* Branch condition (if needed)       */
   1140 
   1141     int SYNCI_Step; /* Address step size for SYNCI */
   1142     int CCRes; /* Cycle count resolution/divisor */
   1143     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
   1144     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
   1145     uint64_t insn_flags; /* Supported instruction set */
   1146     int saarp;
   1147 
   1148     /* Fields up to this point are cleared by a CPU reset */
   1149     struct {} end_reset_fields;
   1150 
   1151     /* Fields from here on are preserved across CPU reset. */
   1152     CPUMIPSMVPContext *mvp;
   1153 #if !defined(CONFIG_USER_ONLY)
   1154     CPUMIPSTLBContext *tlb;
   1155     void *irq[8];
   1156     struct MIPSITUState *itu;
   1157     MemoryRegion *itc_tag; /* ITC Configuration Tags */
   1158 #endif
   1159 
   1160     const mips_def_t *cpu_model;
   1161     QEMUTimer *timer; /* Internal timer */
   1162     target_ulong exception_base; /* ExceptionBase input to the core */
   1163     uint64_t cp0_count_ns; /* CP0_Count clock period (in nanoseconds) */
   1164 } CPUMIPSState;
   1165 
   1166 /**
   1167  * MIPSCPU:
   1168  * @env: #CPUMIPSState
   1169  * @clock: this CPU input clock (may be connected
   1170  *         to an output clock from another device).
   1171  *
   1172  * A MIPS CPU.
   1173  */
   1174 struct ArchCPU {
   1175     /*< private >*/
   1176     CPUState parent_obj;
   1177     /*< public >*/
   1178 
   1179     Clock *clock;
   1180     CPUNegativeOffsetState neg;
   1181     CPUMIPSState env;
   1182 };
   1183 
   1184 
   1185 void mips_cpu_list(void);
   1186 
   1187 #define cpu_list mips_cpu_list
   1188 
   1189 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
   1190 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
   1191 
   1192 /*
   1193  * MMU modes definitions. We carefully match the indices with our
   1194  * hflags layout.
   1195  */
   1196 #define MMU_USER_IDX 2
   1197 
   1198 static inline int hflags_mmu_index(uint32_t hflags)
   1199 {
   1200     if (hflags & MIPS_HFLAG_ERL) {
   1201         return 3; /* ERL */
   1202     } else {
   1203         return hflags & MIPS_HFLAG_KSU;
   1204     }
   1205 }
   1206 
   1207 static inline int cpu_mmu_index(CPUMIPSState *env, bool ifetch)
   1208 {
   1209     return hflags_mmu_index(env->hflags);
   1210 }
   1211 
   1212 #include "exec/cpu-all.h"
   1213 
   1214 /* Exceptions */
   1215 enum {
   1216     EXCP_NONE          = -1,
   1217     EXCP_RESET         = 0,
   1218     EXCP_SRESET,
   1219     EXCP_DSS,
   1220     EXCP_DINT,
   1221     EXCP_DDBL,
   1222     EXCP_DDBS,
   1223     EXCP_NMI,
   1224     EXCP_MCHECK,
   1225     EXCP_EXT_INTERRUPT, /* 8 */
   1226     EXCP_DFWATCH,
   1227     EXCP_DIB,
   1228     EXCP_IWATCH,
   1229     EXCP_AdEL,
   1230     EXCP_AdES,
   1231     EXCP_TLBF,
   1232     EXCP_IBE,
   1233     EXCP_DBp, /* 16 */
   1234     EXCP_SYSCALL,
   1235     EXCP_BREAK,
   1236     EXCP_CpU,
   1237     EXCP_RI,
   1238     EXCP_OVERFLOW,
   1239     EXCP_TRAP,
   1240     EXCP_FPE,
   1241     EXCP_DWATCH, /* 24 */
   1242     EXCP_LTLBL,
   1243     EXCP_TLBL,
   1244     EXCP_TLBS,
   1245     EXCP_DBE,
   1246     EXCP_THREAD,
   1247     EXCP_MDMX,
   1248     EXCP_C2E,
   1249     EXCP_CACHE, /* 32 */
   1250     EXCP_DSPDIS,
   1251     EXCP_MSADIS,
   1252     EXCP_MSAFPE,
   1253     EXCP_TLBXI,
   1254     EXCP_TLBRI,
   1255     EXCP_SEMIHOST,
   1256 
   1257     EXCP_LAST = EXCP_SEMIHOST,
   1258 };
   1259 
   1260 /*
   1261  * This is an internally generated WAKE request line.
   1262  * It is driven by the CPU itself. Raised when the MT
   1263  * block wants to wake a VPE from an inactive state and
   1264  * cleared when VPE goes from active to inactive.
   1265  */
   1266 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
   1267 
   1268 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
   1269 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
   1270 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
   1271 
   1272 bool cpu_type_supports_cps_smp(const char *cpu_type);
   1273 bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask);
   1274 bool cpu_type_supports_isa(const char *cpu_type, uint64_t isa);
   1275 
   1276 /* Check presence of MSA implementation */
   1277 static inline bool ase_msa_available(CPUMIPSState *env)
   1278 {
   1279     return env->CP0_Config3 & (1 << CP0C3_MSAP);
   1280 }
   1281 
   1282 /* Check presence of multi-threading ASE implementation */
   1283 static inline bool ase_mt_available(CPUMIPSState *env)
   1284 {
   1285     return env->CP0_Config3 & (1 << CP0C3_MT);
   1286 }
   1287 
   1288 static inline bool cpu_type_is_64bit(const char *cpu_type)
   1289 {
   1290     return cpu_type_supports_isa(cpu_type, CPU_MIPS64);
   1291 }
   1292 
   1293 void cpu_set_exception_base(int vp_index, target_ulong address);
   1294 
   1295 /* addr.c */
   1296 uint64_t cpu_mips_kseg0_to_phys(void *opaque, uint64_t addr);
   1297 uint64_t cpu_mips_phys_to_kseg0(void *opaque, uint64_t addr);
   1298 
   1299 uint64_t cpu_mips_kvm_um_phys_to_kseg0(void *opaque, uint64_t addr);
   1300 uint64_t cpu_mips_kseg1_to_phys(void *opaque, uint64_t addr);
   1301 uint64_t cpu_mips_phys_to_kseg1(void *opaque, uint64_t addr);
   1302 bool mips_um_ksegs_enabled(void);
   1303 void mips_um_ksegs_enable(void);
   1304 
   1305 #if !defined(CONFIG_USER_ONLY)
   1306 
   1307 /* mips_int.c */
   1308 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
   1309 
   1310 /* mips_itu.c */
   1311 void itc_reconfigure(struct MIPSITUState *tag);
   1312 
   1313 #endif /* !CONFIG_USER_ONLY */
   1314 
   1315 /* helper.c */
   1316 target_ulong exception_resume_pc(CPUMIPSState *env);
   1317 
   1318 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
   1319                                         target_ulong *cs_base, uint32_t *flags)
   1320 {
   1321     *pc = env->active_tc.PC;
   1322     *cs_base = 0;
   1323     *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
   1324                             MIPS_HFLAG_HWRENA_ULR);
   1325 }
   1326 
   1327 /**
   1328  * mips_cpu_create_with_clock:
   1329  * @typename: a MIPS CPU type.
   1330  * @cpu_refclk: this cpu input clock (an output clock of another device)
   1331  *
   1332  * Instantiates a MIPS CPU, set the input clock of the CPU to @cpu_refclk,
   1333  * then realizes the CPU.
   1334  *
   1335  * Returns: A #CPUState or %NULL if an error occurred.
   1336  */
   1337 MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk);
   1338 
   1339 #endif /* MIPS_CPU_H */