xref: /openbmc/qemu/target/mips/cpu.h (revision 64552b6b)
1 #ifndef MIPS_CPU_H
2 #define MIPS_CPU_H
3 
4 #define ALIGNED_ONLY
5 
6 #include "cpu-qom.h"
7 #include "exec/cpu-defs.h"
8 #include "fpu/softfloat.h"
9 #include "mips-defs.h"
10 
11 #define TCG_GUEST_DEFAULT_MO (0)
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 defined(HOST_WORDS_BIGENDIAN)
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            WatchLo           WatchHi
198  * 1   Config1           MAAR              WatchLo           WatchHi
199  * 2   Config2           MAARI             WatchLo           WatchHi
200  * 3   Config3                             WatchLo           WatchHi
201  * 4   Config4                             WatchLo           WatchHi
202  * 5   Config5                             WatchLo           WatchHi
203  * 6                                       WatchLo           WatchHi
204  * 7                                       WatchLo           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   DataLo            DataHi                              KScratch<n>
239  * 3   TagLo             TagHi                               KScratch<n>
240  * 4   DataLo            DataHi                              KScratch<n>
241  * 5   TagLo             TagHi                               KScratch<n>
242  * 6   DataLo            DataHi                              KScratch<n>
243  * 7   TagLo             TagHi                               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__VPCONTROL       4
283 /* CP0 Register 01 */
284 /* CP0 Register 02 */
285 #define CP0_REG02__ENTRYLO0        0
286 /* CP0 Register 03 */
287 #define CP0_REG03__ENTRYLO1        0
288 #define CP0_REG03__GLOBALNUM       1
289 /* CP0 Register 04 */
290 #define CP0_REG04__CONTEXT         0
291 #define CP0_REG04__USERLOCAL       2
292 #define CP0_REG04__DBGCONTEXTID    4
293 #define CP0_REG00__MMID            5
294 /* CP0 Register 05 */
295 #define CP0_REG05__PAGEMASK        0
296 #define CP0_REG05__PAGEGRAIN       1
297 /* CP0 Register 06 */
298 #define CP0_REG06__WIRED           0
299 /* CP0 Register 07 */
300 #define CP0_REG07__HWRENA          0
301 /* CP0 Register 08 */
302 #define CP0_REG08__BADVADDR        0
303 #define CP0_REG08__BADINSTR        1
304 #define CP0_REG08__BADINSTRP       2
305 /* CP0 Register 09 */
306 #define CP0_REG09__COUNT           0
307 #define CP0_REG09__SAARI           6
308 #define CP0_REG09__SAAR            7
309 /* CP0 Register 10 */
310 #define CP0_REG10__ENTRYHI         0
311 #define CP0_REG10__GUESTCTL1       4
312 #define CP0_REG10__GUESTCTL2       5
313 /* CP0 Register 11 */
314 #define CP0_REG11__COMPARE         0
315 #define CP0_REG11__GUESTCTL0EXT    4
316 /* CP0 Register 12 */
317 #define CP0_REG12__STATUS          0
318 #define CP0_REG12__INTCTL          1
319 #define CP0_REG12__SRSCTL          2
320 #define CP0_REG12__GUESTCTL0       6
321 #define CP0_REG12__GTOFFSET        7
322 /* CP0 Register 13 */
323 #define CP0_REG13__CAUSE           0
324 /* CP0 Register 14 */
325 #define CP0_REG14__EPC             0
326 /* CP0 Register 15 */
327 #define CP0_REG15__PRID            0
328 #define CP0_REG15__EBASE           1
329 #define CP0_REG15__CDMMBASE        2
330 #define CP0_REG15__CMGCRBASE       3
331 /* CP0 Register 16 */
332 #define CP0_REG16__CONFIG          0
333 #define CP0_REG16__CONFIG1         1
334 #define CP0_REG16__CONFIG2         2
335 #define CP0_REG16__CONFIG3         3
336 #define CP0_REG16__CONFIG4         4
337 #define CP0_REG16__CONFIG5         5
338 #define CP0_REG00__CONFIG7         7
339 /* CP0 Register 17 */
340 #define CP0_REG17__LLADDR          0
341 #define CP0_REG17__MAAR            1
342 #define CP0_REG17__MAARI           2
343 /* CP0 Register 18 */
344 #define CP0_REG18__WATCHLO0        0
345 #define CP0_REG18__WATCHLO1        1
346 #define CP0_REG18__WATCHLO2        2
347 #define CP0_REG18__WATCHLO3        3
348 /* CP0 Register 19 */
349 #define CP0_REG19__WATCHHI0        0
350 #define CP0_REG19__WATCHHI1        1
351 #define CP0_REG19__WATCHHI2        2
352 #define CP0_REG19__WATCHHI3        3
353 /* CP0 Register 20 */
354 #define CP0_REG20__XCONTEXT        0
355 /* CP0 Register 21 */
356 /* CP0 Register 22 */
357 /* CP0 Register 23 */
358 #define CP0_REG23__DEBUG           0
359 /* CP0 Register 24 */
360 #define CP0_REG24__DEPC            0
361 /* CP0 Register 25 */
362 #define CP0_REG25__PERFCTL0        0
363 #define CP0_REG25__PERFCNT0        1
364 #define CP0_REG25__PERFCTL1        2
365 #define CP0_REG25__PERFCNT1        3
366 #define CP0_REG25__PERFCTL2        4
367 #define CP0_REG25__PERFCNT2        5
368 #define CP0_REG25__PERFCTL3        6
369 #define CP0_REG25__PERFCNT3        7
370 /* CP0 Register 26 */
371 #define CP0_REG00__ERRCTL          0
372 /* CP0 Register 27 */
373 #define CP0_REG27__CACHERR         0
374 /* CP0 Register 28 */
375 #define CP0_REG28__ITAGLO          0
376 #define CP0_REG28__IDATALO         1
377 #define CP0_REG28__DTAGLO          2
378 #define CP0_REG28__DDATALO         3
379 /* CP0 Register 29 */
380 #define CP0_REG29__IDATAHI         1
381 #define CP0_REG29__DDATAHI         3
382 /* CP0 Register 30 */
383 #define CP0_REG30__ERROREPC        0
384 /* CP0 Register 31 */
385 #define CP0_REG31__DESAVE          0
386 #define CP0_REG31__KSCRATCH1       2
387 #define CP0_REG31__KSCRATCH2       3
388 #define CP0_REG31__KSCRATCH3       4
389 #define CP0_REG31__KSCRATCH4       5
390 #define CP0_REG31__KSCRATCH5       6
391 #define CP0_REG31__KSCRATCH6       7
392 
393 
394 typedef struct TCState TCState;
395 struct TCState {
396     target_ulong gpr[32];
397     target_ulong PC;
398     target_ulong HI[MIPS_DSP_ACC];
399     target_ulong LO[MIPS_DSP_ACC];
400     target_ulong ACX[MIPS_DSP_ACC];
401     target_ulong DSPControl;
402     int32_t CP0_TCStatus;
403 #define CP0TCSt_TCU3    31
404 #define CP0TCSt_TCU2    30
405 #define CP0TCSt_TCU1    29
406 #define CP0TCSt_TCU0    28
407 #define CP0TCSt_TMX     27
408 #define CP0TCSt_RNST    23
409 #define CP0TCSt_TDS     21
410 #define CP0TCSt_DT      20
411 #define CP0TCSt_DA      15
412 #define CP0TCSt_A       13
413 #define CP0TCSt_TKSU    11
414 #define CP0TCSt_IXMT    10
415 #define CP0TCSt_TASID   0
416     int32_t CP0_TCBind;
417 #define CP0TCBd_CurTC   21
418 #define CP0TCBd_TBE     17
419 #define CP0TCBd_CurVPE  0
420     target_ulong CP0_TCHalt;
421     target_ulong CP0_TCContext;
422     target_ulong CP0_TCSchedule;
423     target_ulong CP0_TCScheFBack;
424     int32_t CP0_Debug_tcstatus;
425     target_ulong CP0_UserLocal;
426 
427     int32_t msacsr;
428 
429 #define MSACSR_FS       24
430 #define MSACSR_FS_MASK  (1 << MSACSR_FS)
431 #define MSACSR_NX       18
432 #define MSACSR_NX_MASK  (1 << MSACSR_NX)
433 #define MSACSR_CEF      2
434 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF)
435 #define MSACSR_RM       0
436 #define MSACSR_RM_MASK  (0x3 << MSACSR_RM)
437 #define MSACSR_MASK     (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \
438         MSACSR_FS_MASK)
439 
440     float_status msa_fp_status;
441 
442     /* Upper 64-bit MMRs (multimedia registers); the lower 64-bit are GPRs */
443     uint64_t mmr[32];
444 
445 #define NUMBER_OF_MXU_REGISTERS 16
446     target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
447     target_ulong mxu_cr;
448 #define MXU_CR_LC       31
449 #define MXU_CR_RC       30
450 #define MXU_CR_BIAS     2
451 #define MXU_CR_RD_EN    1
452 #define MXU_CR_MXU_EN   0
453 
454 };
455 
456 struct MIPSITUState;
457 typedef struct CPUMIPSState CPUMIPSState;
458 struct CPUMIPSState {
459     TCState active_tc;
460     CPUMIPSFPUContext active_fpu;
461 
462     uint32_t current_tc;
463     uint32_t current_fpu;
464 
465     uint32_t SEGBITS;
466     uint32_t PABITS;
467 #if defined(TARGET_MIPS64)
468 # define PABITS_BASE 36
469 #else
470 # define PABITS_BASE 32
471 #endif
472     target_ulong SEGMask;
473     uint64_t PAMask;
474 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
475 
476     int32_t msair;
477 #define MSAIR_ProcID    8
478 #define MSAIR_Rev       0
479 
480 /*
481  * CP0 Register 0
482  */
483     int32_t CP0_Index;
484     /* CP0_MVP* are per MVP registers. */
485     int32_t CP0_VPControl;
486 #define CP0VPCtl_DIS    0
487 /*
488  * CP0 Register 1
489  */
490     int32_t CP0_Random;
491     int32_t CP0_VPEControl;
492 #define CP0VPECo_YSI    21
493 #define CP0VPECo_GSI    20
494 #define CP0VPECo_EXCPT  16
495 #define CP0VPECo_TE     15
496 #define CP0VPECo_TargTC 0
497     int32_t CP0_VPEConf0;
498 #define CP0VPEC0_M      31
499 #define CP0VPEC0_XTC    21
500 #define CP0VPEC0_TCS    19
501 #define CP0VPEC0_SCS    18
502 #define CP0VPEC0_DSC    17
503 #define CP0VPEC0_ICS    16
504 #define CP0VPEC0_MVP    1
505 #define CP0VPEC0_VPA    0
506     int32_t CP0_VPEConf1;
507 #define CP0VPEC1_NCX    20
508 #define CP0VPEC1_NCP2   10
509 #define CP0VPEC1_NCP1   0
510     target_ulong CP0_YQMask;
511     target_ulong CP0_VPESchedule;
512     target_ulong CP0_VPEScheFBack;
513     int32_t CP0_VPEOpt;
514 #define CP0VPEOpt_IWX7  15
515 #define CP0VPEOpt_IWX6  14
516 #define CP0VPEOpt_IWX5  13
517 #define CP0VPEOpt_IWX4  12
518 #define CP0VPEOpt_IWX3  11
519 #define CP0VPEOpt_IWX2  10
520 #define CP0VPEOpt_IWX1  9
521 #define CP0VPEOpt_IWX0  8
522 #define CP0VPEOpt_DWX7  7
523 #define CP0VPEOpt_DWX6  6
524 #define CP0VPEOpt_DWX5  5
525 #define CP0VPEOpt_DWX4  4
526 #define CP0VPEOpt_DWX3  3
527 #define CP0VPEOpt_DWX2  2
528 #define CP0VPEOpt_DWX1  1
529 #define CP0VPEOpt_DWX0  0
530 /*
531  * CP0 Register 2
532  */
533     uint64_t CP0_EntryLo0;
534 /*
535  * CP0 Register 3
536  */
537     uint64_t CP0_EntryLo1;
538 #if defined(TARGET_MIPS64)
539 # define CP0EnLo_RI 63
540 # define CP0EnLo_XI 62
541 #else
542 # define CP0EnLo_RI 31
543 # define CP0EnLo_XI 30
544 #endif
545     int32_t CP0_GlobalNumber;
546 #define CP0GN_VPId 0
547 /*
548  * CP0 Register 4
549  */
550     target_ulong CP0_Context;
551     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
552     int32_t CP0_MemoryMapID;
553 /*
554  * CP0 Register 5
555  */
556     int32_t CP0_PageMask;
557     int32_t CP0_PageGrain_rw_bitmask;
558     int32_t CP0_PageGrain;
559 #define CP0PG_RIE 31
560 #define CP0PG_XIE 30
561 #define CP0PG_ELPA 29
562 #define CP0PG_IEC 27
563     target_ulong CP0_SegCtl0;
564     target_ulong CP0_SegCtl1;
565     target_ulong CP0_SegCtl2;
566 #define CP0SC_PA        9
567 #define CP0SC_PA_MASK   (0x7FULL << CP0SC_PA)
568 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA)
569 #define CP0SC_AM        4
570 #define CP0SC_AM_MASK   (0x7ULL << CP0SC_AM)
571 #define CP0SC_AM_UK     0ULL
572 #define CP0SC_AM_MK     1ULL
573 #define CP0SC_AM_MSK    2ULL
574 #define CP0SC_AM_MUSK   3ULL
575 #define CP0SC_AM_MUSUK  4ULL
576 #define CP0SC_AM_USK    5ULL
577 #define CP0SC_AM_UUSK   7ULL
578 #define CP0SC_EU        3
579 #define CP0SC_EU_MASK   (1ULL << CP0SC_EU)
580 #define CP0SC_C         0
581 #define CP0SC_C_MASK    (0x7ULL << CP0SC_C)
582 #define CP0SC_MASK      (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
583                          CP0SC_PA_MASK)
584 #define CP0SC_1GMASK    (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
585                          CP0SC_PA_1GMASK)
586 #define CP0SC0_MASK     (CP0SC_MASK | (CP0SC_MASK << 16))
587 #define CP0SC1_XAM      59
588 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM)
589 #define CP0SC1_MASK     (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK)
590 #define CP0SC2_XR       56
591 #define CP0SC2_XR_MASK  (0xFFULL << CP0SC2_XR)
592 #define CP0SC2_MASK     (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK)
593     target_ulong CP0_PWBase;
594     target_ulong CP0_PWField;
595 #if defined(TARGET_MIPS64)
596 #define CP0PF_BDI  32    /* 37..32 */
597 #define CP0PF_GDI  24    /* 29..24 */
598 #define CP0PF_UDI  18    /* 23..18 */
599 #define CP0PF_MDI  12    /* 17..12 */
600 #define CP0PF_PTI  6     /* 11..6  */
601 #define CP0PF_PTEI 0     /*  5..0  */
602 #else
603 #define CP0PF_GDW  24    /* 29..24 */
604 #define CP0PF_UDW  18    /* 23..18 */
605 #define CP0PF_MDW  12    /* 17..12 */
606 #define CP0PF_PTW  6     /* 11..6  */
607 #define CP0PF_PTEW 0     /*  5..0  */
608 #endif
609     target_ulong CP0_PWSize;
610 #if defined(TARGET_MIPS64)
611 #define CP0PS_BDW  32    /* 37..32 */
612 #endif
613 #define CP0PS_PS   30
614 #define CP0PS_GDW  24    /* 29..24 */
615 #define CP0PS_UDW  18    /* 23..18 */
616 #define CP0PS_MDW  12    /* 17..12 */
617 #define CP0PS_PTW  6     /* 11..6  */
618 #define CP0PS_PTEW 0     /*  5..0  */
619 /*
620  * CP0 Register 6
621  */
622     int32_t CP0_Wired;
623     int32_t CP0_PWCtl;
624 #define CP0PC_PWEN      31
625 #if defined(TARGET_MIPS64)
626 #define CP0PC_PWDIREXT  30
627 #define CP0PC_XK        28
628 #define CP0PC_XS        27
629 #define CP0PC_XU        26
630 #endif
631 #define CP0PC_DPH       7
632 #define CP0PC_HUGEPG    6
633 #define CP0PC_PSN       0     /*  5..0  */
634     int32_t CP0_SRSConf0_rw_bitmask;
635     int32_t CP0_SRSConf0;
636 #define CP0SRSC0_M      31
637 #define CP0SRSC0_SRS3   20
638 #define CP0SRSC0_SRS2   10
639 #define CP0SRSC0_SRS1   0
640     int32_t CP0_SRSConf1_rw_bitmask;
641     int32_t CP0_SRSConf1;
642 #define CP0SRSC1_M      31
643 #define CP0SRSC1_SRS6   20
644 #define CP0SRSC1_SRS5   10
645 #define CP0SRSC1_SRS4   0
646     int32_t CP0_SRSConf2_rw_bitmask;
647     int32_t CP0_SRSConf2;
648 #define CP0SRSC2_M      31
649 #define CP0SRSC2_SRS9   20
650 #define CP0SRSC2_SRS8   10
651 #define CP0SRSC2_SRS7   0
652     int32_t CP0_SRSConf3_rw_bitmask;
653     int32_t CP0_SRSConf3;
654 #define CP0SRSC3_M      31
655 #define CP0SRSC3_SRS12  20
656 #define CP0SRSC3_SRS11  10
657 #define CP0SRSC3_SRS10  0
658     int32_t CP0_SRSConf4_rw_bitmask;
659     int32_t CP0_SRSConf4;
660 #define CP0SRSC4_SRS15  20
661 #define CP0SRSC4_SRS14  10
662 #define CP0SRSC4_SRS13  0
663 /*
664  * CP0 Register 7
665  */
666     int32_t CP0_HWREna;
667 /*
668  * CP0 Register 8
669  */
670     target_ulong CP0_BadVAddr;
671     uint32_t CP0_BadInstr;
672     uint32_t CP0_BadInstrP;
673     uint32_t CP0_BadInstrX;
674 /*
675  * CP0 Register 9
676  */
677     int32_t CP0_Count;
678     uint32_t CP0_SAARI;
679 #define CP0SAARI_TARGET 0    /*  5..0  */
680     uint64_t CP0_SAAR[2];
681 #define CP0SAAR_BASE    12   /* 43..12 */
682 #define CP0SAAR_SIZE    1    /*  5..1  */
683 #define CP0SAAR_EN      0
684 /*
685  * CP0 Register 10
686  */
687     target_ulong CP0_EntryHi;
688 #define CP0EnHi_EHINV 10
689     target_ulong CP0_EntryHi_ASID_mask;
690 /*
691  * CP0 Register 11
692  */
693     int32_t CP0_Compare;
694 /*
695  * CP0 Register 12
696  */
697     int32_t CP0_Status;
698 #define CP0St_CU3   31
699 #define CP0St_CU2   30
700 #define CP0St_CU1   29
701 #define CP0St_CU0   28
702 #define CP0St_RP    27
703 #define CP0St_FR    26
704 #define CP0St_RE    25
705 #define CP0St_MX    24
706 #define CP0St_PX    23
707 #define CP0St_BEV   22
708 #define CP0St_TS    21
709 #define CP0St_SR    20
710 #define CP0St_NMI   19
711 #define CP0St_IM    8
712 #define CP0St_KX    7
713 #define CP0St_SX    6
714 #define CP0St_UX    5
715 #define CP0St_KSU   3
716 #define CP0St_ERL   2
717 #define CP0St_EXL   1
718 #define CP0St_IE    0
719     int32_t CP0_IntCtl;
720 #define CP0IntCtl_IPTI 29
721 #define CP0IntCtl_IPPCI 26
722 #define CP0IntCtl_VS 5
723     int32_t CP0_SRSCtl;
724 #define CP0SRSCtl_HSS 26
725 #define CP0SRSCtl_EICSS 18
726 #define CP0SRSCtl_ESS 12
727 #define CP0SRSCtl_PSS 6
728 #define CP0SRSCtl_CSS 0
729     int32_t CP0_SRSMap;
730 #define CP0SRSMap_SSV7 28
731 #define CP0SRSMap_SSV6 24
732 #define CP0SRSMap_SSV5 20
733 #define CP0SRSMap_SSV4 16
734 #define CP0SRSMap_SSV3 12
735 #define CP0SRSMap_SSV2 8
736 #define CP0SRSMap_SSV1 4
737 #define CP0SRSMap_SSV0 0
738 /*
739  * CP0 Register 13
740  */
741     int32_t CP0_Cause;
742 #define CP0Ca_BD   31
743 #define CP0Ca_TI   30
744 #define CP0Ca_CE   28
745 #define CP0Ca_DC   27
746 #define CP0Ca_PCI  26
747 #define CP0Ca_IV   23
748 #define CP0Ca_WP   22
749 #define CP0Ca_IP    8
750 #define CP0Ca_IP_mask 0x0000FF00
751 #define CP0Ca_EC    2
752 /*
753  * CP0 Register 14
754  */
755     target_ulong CP0_EPC;
756 /*
757  * CP0 Register 15
758  */
759     int32_t CP0_PRid;
760     target_ulong CP0_EBase;
761     target_ulong CP0_EBaseWG_rw_bitmask;
762 #define CP0EBase_WG 11
763     target_ulong CP0_CMGCRBase;
764 /*
765  * CP0 Register 16
766  */
767     int32_t CP0_Config0;
768 #define CP0C0_M    31
769 #define CP0C0_K23  28    /* 30..28 */
770 #define CP0C0_KU   25    /* 27..25 */
771 #define CP0C0_MDU  20
772 #define CP0C0_MM   18
773 #define CP0C0_BM   16
774 #define CP0C0_Impl 16    /* 24..16 */
775 #define CP0C0_BE   15
776 #define CP0C0_AT   13    /* 14..13 */
777 #define CP0C0_AR   10    /* 12..10 */
778 #define CP0C0_MT   7     /*  9..7  */
779 #define CP0C0_VI   3
780 #define CP0C0_K0   0     /*  2..0  */
781     int32_t CP0_Config1;
782 #define CP0C1_M    31
783 #define CP0C1_MMU  25    /* 30..25 */
784 #define CP0C1_IS   22    /* 24..22 */
785 #define CP0C1_IL   19    /* 21..19 */
786 #define CP0C1_IA   16    /* 18..16 */
787 #define CP0C1_DS   13    /* 15..13 */
788 #define CP0C1_DL   10    /* 12..10 */
789 #define CP0C1_DA   7     /*  9..7  */
790 #define CP0C1_C2   6
791 #define CP0C1_MD   5
792 #define CP0C1_PC   4
793 #define CP0C1_WR   3
794 #define CP0C1_CA   2
795 #define CP0C1_EP   1
796 #define CP0C1_FP   0
797     int32_t CP0_Config2;
798 #define CP0C2_M    31
799 #define CP0C2_TU   28    /* 30..28 */
800 #define CP0C2_TS   24    /* 27..24 */
801 #define CP0C2_TL   20    /* 23..20 */
802 #define CP0C2_TA   16    /* 19..16 */
803 #define CP0C2_SU   12    /* 15..12 */
804 #define CP0C2_SS   8     /* 11..8  */
805 #define CP0C2_SL   4     /*  7..4  */
806 #define CP0C2_SA   0     /*  3..0  */
807     int32_t CP0_Config3;
808 #define CP0C3_M            31
809 #define CP0C3_BPG          30
810 #define CP0C3_CMGCR        29
811 #define CP0C3_MSAP         28
812 #define CP0C3_BP           27
813 #define CP0C3_BI           26
814 #define CP0C3_SC           25
815 #define CP0C3_PW           24
816 #define CP0C3_VZ           23
817 #define CP0C3_IPLV         21    /* 22..21 */
818 #define CP0C3_MMAR         18    /* 20..18 */
819 #define CP0C3_MCU          17
820 #define CP0C3_ISA_ON_EXC   16
821 #define CP0C3_ISA          14    /* 15..14 */
822 #define CP0C3_ULRI         13
823 #define CP0C3_RXI          12
824 #define CP0C3_DSP2P        11
825 #define CP0C3_DSPP         10
826 #define CP0C3_CTXTC        9
827 #define CP0C3_ITL          8
828 #define CP0C3_LPA          7
829 #define CP0C3_VEIC         6
830 #define CP0C3_VInt         5
831 #define CP0C3_SP           4
832 #define CP0C3_CDMM         3
833 #define CP0C3_MT           2
834 #define CP0C3_SM           1
835 #define CP0C3_TL           0
836     int32_t CP0_Config4;
837     int32_t CP0_Config4_rw_bitmask;
838 #define CP0C4_M            31
839 #define CP0C4_IE           29    /* 30..29 */
840 #define CP0C4_AE           28
841 #define CP0C4_VTLBSizeExt  24    /* 27..24 */
842 #define CP0C4_KScrExist    16
843 #define CP0C4_MMUExtDef    14
844 #define CP0C4_FTLBPageSize 8     /* 12..8  */
845 /* bit layout if MMUExtDef=1 */
846 #define CP0C4_MMUSizeExt   0     /*  7..0  */
847 /* bit layout if MMUExtDef=2 */
848 #define CP0C4_FTLBWays     4     /*  7..4  */
849 #define CP0C4_FTLBSets     0     /*  3..0  */
850     int32_t CP0_Config5;
851     int32_t CP0_Config5_rw_bitmask;
852 #define CP0C5_M            31
853 #define CP0C5_K            30
854 #define CP0C5_CV           29
855 #define CP0C5_EVA          28
856 #define CP0C5_MSAEn        27
857 #define CP0C5_PMJ          23    /* 25..23 */
858 #define CP0C5_WR2          22
859 #define CP0C5_NMS          21
860 #define CP0C5_ULS          20
861 #define CP0C5_XPA          19
862 #define CP0C5_CRCP         18
863 #define CP0C5_MI           17
864 #define CP0C5_GI           15    /* 16..15 */
865 #define CP0C5_CA2          14
866 #define CP0C5_XNP          13
867 #define CP0C5_DEC          11
868 #define CP0C5_L2C          10
869 #define CP0C5_UFE          9
870 #define CP0C5_FRE          8
871 #define CP0C5_VP           7
872 #define CP0C5_SBRI         6
873 #define CP0C5_MVH          5
874 #define CP0C5_LLB          4
875 #define CP0C5_MRP          3
876 #define CP0C5_UFR          2
877 #define CP0C5_NFExists     0
878     int32_t CP0_Config6;
879     int32_t CP0_Config7;
880     uint64_t CP0_LLAddr;
881     uint64_t CP0_MAAR[MIPS_MAAR_MAX];
882     int32_t CP0_MAARI;
883     /* XXX: Maybe make LLAddr per-TC? */
884 /*
885  * CP0 Register 17
886  */
887     target_ulong lladdr; /* LL virtual address compared against SC */
888     target_ulong llval;
889     uint64_t llval_wp;
890     uint32_t llnewval_wp;
891     uint64_t CP0_LLAddr_rw_bitmask;
892     int CP0_LLAddr_shift;
893 /*
894  * CP0 Register 18
895  */
896     target_ulong CP0_WatchLo[8];
897 /*
898  * CP0 Register 19
899  */
900     int32_t CP0_WatchHi[8];
901 #define CP0WH_ASID 16
902 /*
903  * CP0 Register 20
904  */
905     target_ulong CP0_XContext;
906     int32_t CP0_Framemask;
907 /*
908  * CP0 Register 23
909  */
910     int32_t CP0_Debug;
911 #define CP0DB_DBD  31
912 #define CP0DB_DM   30
913 #define CP0DB_LSNM 28
914 #define CP0DB_Doze 27
915 #define CP0DB_Halt 26
916 #define CP0DB_CNT  25
917 #define CP0DB_IBEP 24
918 #define CP0DB_DBEP 21
919 #define CP0DB_IEXI 20
920 #define CP0DB_VER  15
921 #define CP0DB_DEC  10
922 #define CP0DB_SSt  8
923 #define CP0DB_DINT 5
924 #define CP0DB_DIB  4
925 #define CP0DB_DDBS 3
926 #define CP0DB_DDBL 2
927 #define CP0DB_DBp  1
928 #define CP0DB_DSS  0
929 /*
930  * CP0 Register 24
931  */
932     target_ulong CP0_DEPC;
933 /*
934  * CP0 Register 25
935  */
936     int32_t CP0_Performance0;
937 /*
938  * CP0 Register 26
939  */
940     int32_t CP0_ErrCtl;
941 #define CP0EC_WST 29
942 #define CP0EC_SPR 28
943 #define CP0EC_ITC 26
944 /*
945  * CP0 Register 28
946  */
947     uint64_t CP0_TagLo;
948     int32_t CP0_DataLo;
949 /*
950  * CP0 Register 29
951  */
952     int32_t CP0_TagHi;
953     int32_t CP0_DataHi;
954 /*
955  * CP0 Register 30
956  */
957     target_ulong CP0_ErrorEPC;
958 /*
959  * CP0 Register 31
960  */
961     int32_t CP0_DESAVE;
962 
963     /* We waste some space so we can handle shadow registers like TCs. */
964     TCState tcs[MIPS_SHADOW_SET_MAX];
965     CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
966     /* QEMU */
967     int error_code;
968 #define EXCP_TLB_NOMATCH   0x1
969 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
970     uint32_t hflags;    /* CPU State */
971     /* TMASK defines different execution modes */
972 #define MIPS_HFLAG_TMASK  0x1F5807FF
973 #define MIPS_HFLAG_MODE   0x00007 /* execution modes                    */
974     /*
975      * The KSU flags must be the lowest bits in hflags. The flag order
976      * must be the same as defined for CP0 Status. This allows to use
977      * the bits as the value of mmu_idx.
978      */
979 #define MIPS_HFLAG_KSU    0x00003 /* kernel/supervisor/user mode mask   */
980 #define MIPS_HFLAG_UM     0x00002 /* user mode flag                     */
981 #define MIPS_HFLAG_SM     0x00001 /* supervisor mode flag               */
982 #define MIPS_HFLAG_KM     0x00000 /* kernel mode flag                   */
983 #define MIPS_HFLAG_DM     0x00004 /* Debug mode                         */
984 #define MIPS_HFLAG_64     0x00008 /* 64-bit instructions enabled        */
985 #define MIPS_HFLAG_CP0    0x00010 /* CP0 enabled                        */
986 #define MIPS_HFLAG_FPU    0x00020 /* FPU enabled                        */
987 #define MIPS_HFLAG_F64    0x00040 /* 64-bit FPU enabled                 */
988     /*
989      * True if the MIPS IV COP1X instructions can be used.  This also
990      * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
991      * and RSQRT.D.
992      */
993 #define MIPS_HFLAG_COP1X  0x00080 /* COP1X instructions enabled         */
994 #define MIPS_HFLAG_RE     0x00100 /* Reversed endianness                */
995 #define MIPS_HFLAG_AWRAP  0x00200 /* 32-bit compatibility address wrapping */
996 #define MIPS_HFLAG_M16    0x00400 /* MIPS16 mode flag                   */
997 #define MIPS_HFLAG_M16_SHIFT 10
998     /*
999      * If translation is interrupted between the branch instruction and
1000      * the delay slot, record what type of branch it is so that we can
1001      * resume translation properly.  It might be possible to reduce
1002      * this from three bits to two.
1003      */
1004 #define MIPS_HFLAG_BMASK_BASE  0x803800
1005 #define MIPS_HFLAG_B      0x00800 /* Unconditional branch               */
1006 #define MIPS_HFLAG_BC     0x01000 /* Conditional branch                 */
1007 #define MIPS_HFLAG_BL     0x01800 /* Likely branch                      */
1008 #define MIPS_HFLAG_BR     0x02000 /* branch to register (can't link TB) */
1009     /* Extra flags about the current pending branch.  */
1010 #define MIPS_HFLAG_BMASK_EXT 0x7C000
1011 #define MIPS_HFLAG_B16    0x04000 /* branch instruction was 16 bits     */
1012 #define MIPS_HFLAG_BDS16  0x08000 /* branch requires 16-bit delay slot  */
1013 #define MIPS_HFLAG_BDS32  0x10000 /* branch requires 32-bit delay slot  */
1014 #define MIPS_HFLAG_BDS_STRICT  0x20000 /* Strict delay slot size */
1015 #define MIPS_HFLAG_BX     0x40000 /* branch exchanges execution mode    */
1016 #define MIPS_HFLAG_BMASK  (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
1017     /* MIPS DSP resources access. */
1018 #define MIPS_HFLAG_DSP    0x080000   /* Enable access to DSP resources.    */
1019 #define MIPS_HFLAG_DSP_R2 0x100000   /* Enable access to DSP R2 resources. */
1020 #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */
1021     /* Extra flag about HWREna register. */
1022 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
1023 #define MIPS_HFLAG_SBRI  0x400000 /* R6 SDBBP causes RI excpt. in user mode */
1024 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot                   */
1025 #define MIPS_HFLAG_MSA   0x1000000
1026 #define MIPS_HFLAG_FRE   0x2000000 /* FRE enabled */
1027 #define MIPS_HFLAG_ELPA  0x4000000
1028 #define MIPS_HFLAG_ITC_CACHE  0x8000000 /* CACHE instr. operates on ITC tag */
1029 #define MIPS_HFLAG_ERL   0x10000000 /* error level flag */
1030     target_ulong btarget;        /* Jump / branch target               */
1031     target_ulong bcond;          /* Branch condition (if needed)       */
1032 
1033     int SYNCI_Step; /* Address step size for SYNCI */
1034     int CCRes; /* Cycle count resolution/divisor */
1035     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
1036     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
1037     uint64_t insn_flags; /* Supported instruction set */
1038     int saarp;
1039 
1040     /* Fields up to this point are cleared by a CPU reset */
1041     struct {} end_reset_fields;
1042 
1043     /* Fields from here on are preserved across CPU reset. */
1044     CPUMIPSMVPContext *mvp;
1045 #if !defined(CONFIG_USER_ONLY)
1046     CPUMIPSTLBContext *tlb;
1047 #endif
1048 
1049     const mips_def_t *cpu_model;
1050     void *irq[8];
1051     QEMUTimer *timer; /* Internal timer */
1052     struct MIPSITUState *itu;
1053     MemoryRegion *itc_tag; /* ITC Configuration Tags */
1054     target_ulong exception_base; /* ExceptionBase input to the core */
1055 };
1056 
1057 /**
1058  * MIPSCPU:
1059  * @env: #CPUMIPSState
1060  *
1061  * A MIPS CPU.
1062  */
1063 struct MIPSCPU {
1064     /*< private >*/
1065     CPUState parent_obj;
1066     /*< public >*/
1067 
1068     CPUNegativeOffsetState neg;
1069     CPUMIPSState env;
1070 };
1071 
1072 
1073 void mips_cpu_list(void);
1074 
1075 #define cpu_signal_handler cpu_mips_signal_handler
1076 #define cpu_list mips_cpu_list
1077 
1078 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
1079 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
1080 
1081 /*
1082  * MMU modes definitions. We carefully match the indices with our
1083  * hflags layout.
1084  */
1085 #define MMU_MODE0_SUFFIX _kernel
1086 #define MMU_MODE1_SUFFIX _super
1087 #define MMU_MODE2_SUFFIX _user
1088 #define MMU_MODE3_SUFFIX _error
1089 #define MMU_USER_IDX 2
1090 
1091 static inline int hflags_mmu_index(uint32_t hflags)
1092 {
1093     if (hflags & MIPS_HFLAG_ERL) {
1094         return 3; /* ERL */
1095     } else {
1096         return hflags & MIPS_HFLAG_KSU;
1097     }
1098 }
1099 
1100 static inline int cpu_mmu_index(CPUMIPSState *env, bool ifetch)
1101 {
1102     return hflags_mmu_index(env->hflags);
1103 }
1104 
1105 typedef CPUMIPSState CPUArchState;
1106 typedef MIPSCPU ArchCPU;
1107 
1108 #include "exec/cpu-all.h"
1109 
1110 /*
1111  * Memory access type :
1112  * may be needed for precise access rights control and precise exceptions.
1113  */
1114 enum {
1115     /* 1 bit to define user level / supervisor access */
1116     ACCESS_USER  = 0x00,
1117     ACCESS_SUPER = 0x01,
1118     /* 1 bit to indicate direction */
1119     ACCESS_STORE = 0x02,
1120     /* Type of instruction that generated the access */
1121     ACCESS_CODE  = 0x10, /* Code fetch access                */
1122     ACCESS_INT   = 0x20, /* Integer load/store access        */
1123     ACCESS_FLOAT = 0x30, /* floating point load/store access */
1124 };
1125 
1126 /* Exceptions */
1127 enum {
1128     EXCP_NONE          = -1,
1129     EXCP_RESET         = 0,
1130     EXCP_SRESET,
1131     EXCP_DSS,
1132     EXCP_DINT,
1133     EXCP_DDBL,
1134     EXCP_DDBS,
1135     EXCP_NMI,
1136     EXCP_MCHECK,
1137     EXCP_EXT_INTERRUPT, /* 8 */
1138     EXCP_DFWATCH,
1139     EXCP_DIB,
1140     EXCP_IWATCH,
1141     EXCP_AdEL,
1142     EXCP_AdES,
1143     EXCP_TLBF,
1144     EXCP_IBE,
1145     EXCP_DBp, /* 16 */
1146     EXCP_SYSCALL,
1147     EXCP_BREAK,
1148     EXCP_CpU,
1149     EXCP_RI,
1150     EXCP_OVERFLOW,
1151     EXCP_TRAP,
1152     EXCP_FPE,
1153     EXCP_DWATCH, /* 24 */
1154     EXCP_LTLBL,
1155     EXCP_TLBL,
1156     EXCP_TLBS,
1157     EXCP_DBE,
1158     EXCP_THREAD,
1159     EXCP_MDMX,
1160     EXCP_C2E,
1161     EXCP_CACHE, /* 32 */
1162     EXCP_DSPDIS,
1163     EXCP_MSADIS,
1164     EXCP_MSAFPE,
1165     EXCP_TLBXI,
1166     EXCP_TLBRI,
1167 
1168     EXCP_LAST = EXCP_TLBRI,
1169 };
1170 
1171 /*
1172  * This is an internally generated WAKE request line.
1173  * It is driven by the CPU itself. Raised when the MT
1174  * block wants to wake a VPE from an inactive state and
1175  * cleared when VPE goes from active to inactive.
1176  */
1177 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
1178 
1179 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
1180 
1181 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
1182 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
1183 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
1184 
1185 bool cpu_supports_cps_smp(const char *cpu_type);
1186 bool cpu_supports_isa(const char *cpu_type, uint64_t isa);
1187 void cpu_set_exception_base(int vp_index, target_ulong address);
1188 
1189 /* mips_int.c */
1190 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
1191 
1192 /* mips_itu.c */
1193 void itc_reconfigure(struct MIPSITUState *tag);
1194 
1195 /* helper.c */
1196 target_ulong exception_resume_pc(CPUMIPSState *env);
1197 
1198 static inline void restore_snan_bit_mode(CPUMIPSState *env)
1199 {
1200     set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) == 0,
1201                         &env->active_fpu.fp_status);
1202 }
1203 
1204 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
1205                                         target_ulong *cs_base, uint32_t *flags)
1206 {
1207     *pc = env->active_tc.PC;
1208     *cs_base = 0;
1209     *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
1210                             MIPS_HFLAG_HWRENA_ULR);
1211 }
1212 
1213 #endif /* MIPS_CPU_H */
1214