xref: /openbmc/qemu/target/mips/cpu.h (revision 29a0af61)
1 #ifndef MIPS_CPU_H
2 #define MIPS_CPU_H
3 
4 #define ALIGNED_ONLY
5 
6 #include "qemu-common.h"
7 #include "cpu-qom.h"
8 #include "exec/cpu-defs.h"
9 #include "fpu/softfloat.h"
10 #include "mips-defs.h"
11 
12 #define TCG_GUEST_DEFAULT_MO (0)
13 
14 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
15 
16 /* MSA Context */
17 #define MSA_WRLEN (128)
18 
19 typedef union wr_t wr_t;
20 union wr_t {
21     int8_t  b[MSA_WRLEN / 8];
22     int16_t h[MSA_WRLEN / 16];
23     int32_t w[MSA_WRLEN / 32];
24     int64_t d[MSA_WRLEN / 64];
25 };
26 
27 typedef union fpr_t fpr_t;
28 union fpr_t {
29     float64  fd;   /* ieee double precision */
30     float32  fs[2];/* ieee single precision */
31     uint64_t d;    /* binary double fixed-point */
32     uint32_t w[2]; /* binary single fixed-point */
33 /* FPU/MSA register mapping is not tested on big-endian hosts. */
34     wr_t     wr;   /* vector data */
35 };
36 /*
37  *define FP_ENDIAN_IDX to access the same location
38  * in the fpr_t union regardless of the host endianness
39  */
40 #if defined(HOST_WORDS_BIGENDIAN)
41 #  define FP_ENDIAN_IDX 1
42 #else
43 #  define FP_ENDIAN_IDX 0
44 #endif
45 
46 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
47 struct CPUMIPSFPUContext {
48     /* Floating point registers */
49     fpr_t fpr[32];
50     float_status fp_status;
51     /* fpu implementation/revision register (fir) */
52     uint32_t fcr0;
53 #define FCR0_FREP 29
54 #define FCR0_UFRP 28
55 #define FCR0_HAS2008 23
56 #define FCR0_F64 22
57 #define FCR0_L 21
58 #define FCR0_W 20
59 #define FCR0_3D 19
60 #define FCR0_PS 18
61 #define FCR0_D 17
62 #define FCR0_S 16
63 #define FCR0_PRID 8
64 #define FCR0_REV 0
65     /* fcsr */
66     uint32_t fcr31_rw_bitmask;
67     uint32_t fcr31;
68 #define FCR31_FS 24
69 #define FCR31_ABS2008 19
70 #define FCR31_NAN2008 18
71 #define SET_FP_COND(num, env)     do { ((env).fcr31) |=                 \
72                                        ((num) ? (1 << ((num) + 24)) :   \
73                                                 (1 << 23));             \
74                                      } while (0)
75 #define CLEAR_FP_COND(num, env)   do { ((env).fcr31) &=                 \
76                                        ~((num) ? (1 << ((num) + 24)) :  \
77                                                  (1 << 23));            \
78                                      } while (0)
79 #define GET_FP_COND(env)         ((((env).fcr31 >> 24) & 0xfe) |        \
80                                  (((env).fcr31 >> 23) & 0x1))
81 #define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
82 #define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
83 #define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
84 #define SET_FP_CAUSE(reg, v)      do { (reg) = ((reg) & ~(0x3f << 12)) | \
85                                                ((v & 0x3f) << 12);       \
86                                      } while (0)
87 #define SET_FP_ENABLE(reg, v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | \
88                                                ((v & 0x1f) << 7);        \
89                                      } while (0)
90 #define SET_FP_FLAGS(reg, v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | \
91                                                ((v & 0x1f) << 2);        \
92                                      } while (0)
93 #define UPDATE_FP_FLAGS(reg, v)   do { (reg) |= ((v & 0x1f) << 2); } while (0)
94 #define FP_INEXACT        1
95 #define FP_UNDERFLOW      2
96 #define FP_OVERFLOW       4
97 #define FP_DIV0           8
98 #define FP_INVALID        16
99 #define FP_UNIMPLEMENTED  32
100 };
101 
102 #define TARGET_INSN_START_EXTRA_WORDS 2
103 
104 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
105 struct CPUMIPSMVPContext {
106     int32_t CP0_MVPControl;
107 #define CP0MVPCo_CPA    3
108 #define CP0MVPCo_STLB   2
109 #define CP0MVPCo_VPC    1
110 #define CP0MVPCo_EVP    0
111     int32_t CP0_MVPConf0;
112 #define CP0MVPC0_M      31
113 #define CP0MVPC0_TLBS   29
114 #define CP0MVPC0_GS     28
115 #define CP0MVPC0_PCP    27
116 #define CP0MVPC0_PTLBE  16
117 #define CP0MVPC0_TCA    15
118 #define CP0MVPC0_PVPE   10
119 #define CP0MVPC0_PTC    0
120     int32_t CP0_MVPConf1;
121 #define CP0MVPC1_CIM    31
122 #define CP0MVPC1_CIF    30
123 #define CP0MVPC1_PCX    20
124 #define CP0MVPC1_PCP2   10
125 #define CP0MVPC1_PCP1   0
126 };
127 
128 typedef struct mips_def_t mips_def_t;
129 
130 #define MIPS_SHADOW_SET_MAX 16
131 #define MIPS_TC_MAX 5
132 #define MIPS_FPU_MAX 1
133 #define MIPS_DSP_ACC 4
134 #define MIPS_KSCRATCH_NUM 6
135 #define MIPS_MAAR_MAX 16 /* Must be an even number. */
136 
137 
138 /*
139  *     Summary of CP0 registers
140  *     ========================
141  *
142  *
143  *     Register 0        Register 1        Register 2        Register 3
144  *     ----------        ----------        ----------        ----------
145  *
146  * 0   Index             Random            EntryLo0          EntryLo1
147  * 1   MVPControl        VPEControl        TCStatus          GlobalNumber
148  * 2   MVPConf0          VPEConf0          TCBind
149  * 3   MVPConf1          VPEConf1          TCRestart
150  * 4   VPControl         YQMask            TCHalt
151  * 5                     VPESchedule       TCContext
152  * 6                     VPEScheFBack      TCSchedule
153  * 7                     VPEOpt            TCScheFBack       TCOpt
154  *
155  *
156  *     Register 4        Register 5        Register 6        Register 7
157  *     ----------        ----------        ----------        ----------
158  *
159  * 0   Context           PageMask          Wired             HWREna
160  * 1   ContextConfig     PageGrain         SRSConf0
161  * 2   UserLocal         SegCtl0           SRSConf1
162  * 3   XContextConfig    SegCtl1           SRSConf2
163  * 4   DebugContextID    SegCtl2           SRSConf3
164  * 5   MemoryMapID       PWBase            SRSConf4
165  * 6                     PWField           PWCtl
166  * 7                     PWSize
167  *
168  *
169  *     Register 8        Register 9        Register 10       Register 11
170  *     ----------        ----------        -----------       -----------
171  *
172  * 0   BadVAddr          Count             EntryHi           Compare
173  * 1   BadInstr
174  * 2   BadInstrP
175  * 3   BadInstrX
176  * 4                                       GuestCtl1         GuestCtl0Ext
177  * 5                                       GuestCtl2
178  * 6                     SAARI             GuestCtl3
179  * 7                     SAAR
180  *
181  *
182  *     Register 12       Register 13       Register 14       Register 15
183  *     -----------       -----------       -----------       -----------
184  *
185  * 0   Status            Cause             EPC               PRId
186  * 1   IntCtl                                                EBase
187  * 2   SRSCtl                              NestedEPC         CDMMBase
188  * 3   SRSMap                                                CMGCRBase
189  * 4   View_IPL          View_RIPL                           BEVVA
190  * 5   SRSMap2           NestedExc
191  * 6   GuestCtl0
192  * 7   GTOffset
193  *
194  *
195  *     Register 16       Register 17       Register 18       Register 19
196  *     -----------       -----------       -----------       -----------
197  *
198  * 0   Config            LLAddr            WatchLo           WatchHi
199  * 1   Config1           MAAR              WatchLo           WatchHi
200  * 2   Config2           MAARI             WatchLo           WatchHi
201  * 3   Config3                             WatchLo           WatchHi
202  * 4   Config4                             WatchLo           WatchHi
203  * 5   Config5                             WatchLo           WatchHi
204  * 6                                       WatchLo           WatchHi
205  * 7                                       WatchLo           WatchHi
206  *
207  *
208  *     Register 20       Register 21       Register 22       Register 23
209  *     -----------       -----------       -----------       -----------
210  *
211  * 0   XContext                                              Debug
212  * 1                                                         TraceControl
213  * 2                                                         TraceControl2
214  * 3                                                         UserTraceData1
215  * 4                                                         TraceIBPC
216  * 5                                                         TraceDBPC
217  * 6                                                         Debug2
218  * 7
219  *
220  *
221  *     Register 24       Register 25       Register 26       Register 27
222  *     -----------       -----------       -----------       -----------
223  *
224  * 0   DEPC              PerfCnt            ErrCtl          CacheErr
225  * 1                     PerfCnt
226  * 2   TraceControl3     PerfCnt
227  * 3   UserTraceData2    PerfCnt
228  * 4                     PerfCnt
229  * 5                     PerfCnt
230  * 6                     PerfCnt
231  * 7                     PerfCnt
232  *
233  *
234  *     Register 28       Register 29       Register 30       Register 31
235  *     -----------       -----------       -----------       -----------
236  *
237  * 0   DataLo            DataHi            ErrorEPC          DESAVE
238  * 1   TagLo             TagHi
239  * 2   DataLo            DataHi                              KScratch<n>
240  * 3   TagLo             TagHi                               KScratch<n>
241  * 4   DataLo            DataHi                              KScratch<n>
242  * 5   TagLo             TagHi                               KScratch<n>
243  * 6   DataLo            DataHi                              KScratch<n>
244  * 7   TagLo             TagHi                               KScratch<n>
245  *
246  */
247 #define CP0_REGISTER_00     0
248 #define CP0_REGISTER_01     1
249 #define CP0_REGISTER_02     2
250 #define CP0_REGISTER_03     3
251 #define CP0_REGISTER_04     4
252 #define CP0_REGISTER_05     5
253 #define CP0_REGISTER_06     6
254 #define CP0_REGISTER_07     7
255 #define CP0_REGISTER_08     8
256 #define CP0_REGISTER_09     9
257 #define CP0_REGISTER_10    10
258 #define CP0_REGISTER_11    11
259 #define CP0_REGISTER_12    12
260 #define CP0_REGISTER_13    13
261 #define CP0_REGISTER_14    14
262 #define CP0_REGISTER_15    15
263 #define CP0_REGISTER_16    16
264 #define CP0_REGISTER_17    17
265 #define CP0_REGISTER_18    18
266 #define CP0_REGISTER_19    19
267 #define CP0_REGISTER_20    20
268 #define CP0_REGISTER_21    21
269 #define CP0_REGISTER_22    22
270 #define CP0_REGISTER_23    23
271 #define CP0_REGISTER_24    24
272 #define CP0_REGISTER_25    25
273 #define CP0_REGISTER_26    26
274 #define CP0_REGISTER_27    27
275 #define CP0_REGISTER_28    28
276 #define CP0_REGISTER_29    29
277 #define CP0_REGISTER_30    30
278 #define CP0_REGISTER_31    31
279 
280 
281 /* CP0 Register 00 */
282 #define CP0_REG00__INDEX           0
283 #define CP0_REG00__VPCONTROL       4
284 /* CP0 Register 01 */
285 /* CP0 Register 02 */
286 #define CP0_REG02__ENTRYLO0        0
287 /* CP0 Register 03 */
288 #define CP0_REG03__ENTRYLO1        0
289 #define CP0_REG03__GLOBALNUM       1
290 /* CP0 Register 04 */
291 #define CP0_REG04__CONTEXT         0
292 #define CP0_REG04__USERLOCAL       2
293 #define CP0_REG04__DBGCONTEXTID    4
294 #define CP0_REG00__MMID            5
295 /* CP0 Register 05 */
296 #define CP0_REG05__PAGEMASK        0
297 #define CP0_REG05__PAGEGRAIN       1
298 /* CP0 Register 06 */
299 #define CP0_REG06__WIRED           0
300 /* CP0 Register 07 */
301 #define CP0_REG07__HWRENA          0
302 /* CP0 Register 08 */
303 #define CP0_REG08__BADVADDR        0
304 #define CP0_REG08__BADINSTR        1
305 #define CP0_REG08__BADINSTRP       2
306 /* CP0 Register 09 */
307 #define CP0_REG09__COUNT           0
308 #define CP0_REG09__SAARI           6
309 #define CP0_REG09__SAAR            7
310 /* CP0 Register 10 */
311 #define CP0_REG10__ENTRYHI         0
312 #define CP0_REG10__GUESTCTL1       4
313 #define CP0_REG10__GUESTCTL2       5
314 /* CP0 Register 11 */
315 #define CP0_REG11__COMPARE         0
316 #define CP0_REG11__GUESTCTL0EXT    4
317 /* CP0 Register 12 */
318 #define CP0_REG12__STATUS          0
319 #define CP0_REG12__INTCTL          1
320 #define CP0_REG12__SRSCTL          2
321 #define CP0_REG12__GUESTCTL0       6
322 #define CP0_REG12__GTOFFSET        7
323 /* CP0 Register 13 */
324 #define CP0_REG13__CAUSE           0
325 /* CP0 Register 14 */
326 #define CP0_REG14__EPC             0
327 /* CP0 Register 15 */
328 #define CP0_REG15__PRID            0
329 #define CP0_REG15__EBASE           1
330 #define CP0_REG15__CDMMBASE        2
331 #define CP0_REG15__CMGCRBASE       3
332 /* CP0 Register 16 */
333 #define CP0_REG16__CONFIG          0
334 #define CP0_REG16__CONFIG1         1
335 #define CP0_REG16__CONFIG2         2
336 #define CP0_REG16__CONFIG3         3
337 #define CP0_REG16__CONFIG4         4
338 #define CP0_REG16__CONFIG5         5
339 #define CP0_REG00__CONFIG7         7
340 /* CP0 Register 17 */
341 #define CP0_REG17__LLADDR          0
342 #define CP0_REG17__MAAR            1
343 #define CP0_REG17__MAARI           2
344 /* CP0 Register 18 */
345 #define CP0_REG18__WATCHLO0        0
346 #define CP0_REG18__WATCHLO1        1
347 #define CP0_REG18__WATCHLO2        2
348 #define CP0_REG18__WATCHLO3        3
349 /* CP0 Register 19 */
350 #define CP0_REG19__WATCHHI0        0
351 #define CP0_REG19__WATCHHI1        1
352 #define CP0_REG19__WATCHHI2        2
353 #define CP0_REG19__WATCHHI3        3
354 /* CP0 Register 20 */
355 #define CP0_REG20__XCONTEXT        0
356 /* CP0 Register 21 */
357 /* CP0 Register 22 */
358 /* CP0 Register 23 */
359 #define CP0_REG23__DEBUG           0
360 /* CP0 Register 24 */
361 #define CP0_REG24__DEPC            0
362 /* CP0 Register 25 */
363 #define CP0_REG25__PERFCTL0        0
364 #define CP0_REG25__PERFCNT0        1
365 #define CP0_REG25__PERFCTL1        2
366 #define CP0_REG25__PERFCNT1        3
367 #define CP0_REG25__PERFCTL2        4
368 #define CP0_REG25__PERFCNT2        5
369 #define CP0_REG25__PERFCTL3        6
370 #define CP0_REG25__PERFCNT3        7
371 /* CP0 Register 26 */
372 #define CP0_REG00__ERRCTL          0
373 /* CP0 Register 27 */
374 #define CP0_REG27__CACHERR         0
375 /* CP0 Register 28 */
376 #define CP0_REG28__ITAGLO          0
377 #define CP0_REG28__IDATALO         1
378 #define CP0_REG28__DTAGLO          2
379 #define CP0_REG28__DDATALO         3
380 /* CP0 Register 29 */
381 #define CP0_REG29__IDATAHI         1
382 #define CP0_REG29__DDATAHI         3
383 /* CP0 Register 30 */
384 #define CP0_REG30__ERROREPC        0
385 /* CP0 Register 31 */
386 #define CP0_REG31__DESAVE          0
387 #define CP0_REG31__KSCRATCH1       2
388 #define CP0_REG31__KSCRATCH2       3
389 #define CP0_REG31__KSCRATCH3       4
390 #define CP0_REG31__KSCRATCH4       5
391 #define CP0_REG31__KSCRATCH5       6
392 #define CP0_REG31__KSCRATCH6       7
393 
394 
395 typedef struct TCState TCState;
396 struct TCState {
397     target_ulong gpr[32];
398     target_ulong PC;
399     target_ulong HI[MIPS_DSP_ACC];
400     target_ulong LO[MIPS_DSP_ACC];
401     target_ulong ACX[MIPS_DSP_ACC];
402     target_ulong DSPControl;
403     int32_t CP0_TCStatus;
404 #define CP0TCSt_TCU3    31
405 #define CP0TCSt_TCU2    30
406 #define CP0TCSt_TCU1    29
407 #define CP0TCSt_TCU0    28
408 #define CP0TCSt_TMX     27
409 #define CP0TCSt_RNST    23
410 #define CP0TCSt_TDS     21
411 #define CP0TCSt_DT      20
412 #define CP0TCSt_DA      15
413 #define CP0TCSt_A       13
414 #define CP0TCSt_TKSU    11
415 #define CP0TCSt_IXMT    10
416 #define CP0TCSt_TASID   0
417     int32_t CP0_TCBind;
418 #define CP0TCBd_CurTC   21
419 #define CP0TCBd_TBE     17
420 #define CP0TCBd_CurVPE  0
421     target_ulong CP0_TCHalt;
422     target_ulong CP0_TCContext;
423     target_ulong CP0_TCSchedule;
424     target_ulong CP0_TCScheFBack;
425     int32_t CP0_Debug_tcstatus;
426     target_ulong CP0_UserLocal;
427 
428     int32_t msacsr;
429 
430 #define MSACSR_FS       24
431 #define MSACSR_FS_MASK  (1 << MSACSR_FS)
432 #define MSACSR_NX       18
433 #define MSACSR_NX_MASK  (1 << MSACSR_NX)
434 #define MSACSR_CEF      2
435 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF)
436 #define MSACSR_RM       0
437 #define MSACSR_RM_MASK  (0x3 << MSACSR_RM)
438 #define MSACSR_MASK     (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \
439         MSACSR_FS_MASK)
440 
441     float_status msa_fp_status;
442 
443     /* Upper 64-bit MMRs (multimedia registers); the lower 64-bit are GPRs */
444     uint64_t mmr[32];
445 
446 #define NUMBER_OF_MXU_REGISTERS 16
447     target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
448     target_ulong mxu_cr;
449 #define MXU_CR_LC       31
450 #define MXU_CR_RC       30
451 #define MXU_CR_BIAS     2
452 #define MXU_CR_RD_EN    1
453 #define MXU_CR_MXU_EN   0
454 
455 };
456 
457 struct MIPSITUState;
458 typedef struct CPUMIPSState CPUMIPSState;
459 struct CPUMIPSState {
460     TCState active_tc;
461     CPUMIPSFPUContext active_fpu;
462 
463     uint32_t current_tc;
464     uint32_t current_fpu;
465 
466     uint32_t SEGBITS;
467     uint32_t PABITS;
468 #if defined(TARGET_MIPS64)
469 # define PABITS_BASE 36
470 #else
471 # define PABITS_BASE 32
472 #endif
473     target_ulong SEGMask;
474     uint64_t PAMask;
475 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
476 
477     int32_t msair;
478 #define MSAIR_ProcID    8
479 #define MSAIR_Rev       0
480 
481 /*
482  * CP0 Register 0
483  */
484     int32_t CP0_Index;
485     /* CP0_MVP* are per MVP registers. */
486     int32_t CP0_VPControl;
487 #define CP0VPCtl_DIS    0
488 /*
489  * CP0 Register 1
490  */
491     int32_t CP0_Random;
492     int32_t CP0_VPEControl;
493 #define CP0VPECo_YSI    21
494 #define CP0VPECo_GSI    20
495 #define CP0VPECo_EXCPT  16
496 #define CP0VPECo_TE     15
497 #define CP0VPECo_TargTC 0
498     int32_t CP0_VPEConf0;
499 #define CP0VPEC0_M      31
500 #define CP0VPEC0_XTC    21
501 #define CP0VPEC0_TCS    19
502 #define CP0VPEC0_SCS    18
503 #define CP0VPEC0_DSC    17
504 #define CP0VPEC0_ICS    16
505 #define CP0VPEC0_MVP    1
506 #define CP0VPEC0_VPA    0
507     int32_t CP0_VPEConf1;
508 #define CP0VPEC1_NCX    20
509 #define CP0VPEC1_NCP2   10
510 #define CP0VPEC1_NCP1   0
511     target_ulong CP0_YQMask;
512     target_ulong CP0_VPESchedule;
513     target_ulong CP0_VPEScheFBack;
514     int32_t CP0_VPEOpt;
515 #define CP0VPEOpt_IWX7  15
516 #define CP0VPEOpt_IWX6  14
517 #define CP0VPEOpt_IWX5  13
518 #define CP0VPEOpt_IWX4  12
519 #define CP0VPEOpt_IWX3  11
520 #define CP0VPEOpt_IWX2  10
521 #define CP0VPEOpt_IWX1  9
522 #define CP0VPEOpt_IWX0  8
523 #define CP0VPEOpt_DWX7  7
524 #define CP0VPEOpt_DWX6  6
525 #define CP0VPEOpt_DWX5  5
526 #define CP0VPEOpt_DWX4  4
527 #define CP0VPEOpt_DWX3  3
528 #define CP0VPEOpt_DWX2  2
529 #define CP0VPEOpt_DWX1  1
530 #define CP0VPEOpt_DWX0  0
531 /*
532  * CP0 Register 2
533  */
534     uint64_t CP0_EntryLo0;
535 /*
536  * CP0 Register 3
537  */
538     uint64_t CP0_EntryLo1;
539 #if defined(TARGET_MIPS64)
540 # define CP0EnLo_RI 63
541 # define CP0EnLo_XI 62
542 #else
543 # define CP0EnLo_RI 31
544 # define CP0EnLo_XI 30
545 #endif
546     int32_t CP0_GlobalNumber;
547 #define CP0GN_VPId 0
548 /*
549  * CP0 Register 4
550  */
551     target_ulong CP0_Context;
552     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
553     int32_t CP0_MemoryMapID;
554 /*
555  * CP0 Register 5
556  */
557     int32_t CP0_PageMask;
558     int32_t CP0_PageGrain_rw_bitmask;
559     int32_t CP0_PageGrain;
560 #define CP0PG_RIE 31
561 #define CP0PG_XIE 30
562 #define CP0PG_ELPA 29
563 #define CP0PG_IEC 27
564     target_ulong CP0_SegCtl0;
565     target_ulong CP0_SegCtl1;
566     target_ulong CP0_SegCtl2;
567 #define CP0SC_PA        9
568 #define CP0SC_PA_MASK   (0x7FULL << CP0SC_PA)
569 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA)
570 #define CP0SC_AM        4
571 #define CP0SC_AM_MASK   (0x7ULL << CP0SC_AM)
572 #define CP0SC_AM_UK     0ULL
573 #define CP0SC_AM_MK     1ULL
574 #define CP0SC_AM_MSK    2ULL
575 #define CP0SC_AM_MUSK   3ULL
576 #define CP0SC_AM_MUSUK  4ULL
577 #define CP0SC_AM_USK    5ULL
578 #define CP0SC_AM_UUSK   7ULL
579 #define CP0SC_EU        3
580 #define CP0SC_EU_MASK   (1ULL << CP0SC_EU)
581 #define CP0SC_C         0
582 #define CP0SC_C_MASK    (0x7ULL << CP0SC_C)
583 #define CP0SC_MASK      (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
584                          CP0SC_PA_MASK)
585 #define CP0SC_1GMASK    (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
586                          CP0SC_PA_1GMASK)
587 #define CP0SC0_MASK     (CP0SC_MASK | (CP0SC_MASK << 16))
588 #define CP0SC1_XAM      59
589 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM)
590 #define CP0SC1_MASK     (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK)
591 #define CP0SC2_XR       56
592 #define CP0SC2_XR_MASK  (0xFFULL << CP0SC2_XR)
593 #define CP0SC2_MASK     (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK)
594     target_ulong CP0_PWBase;
595     target_ulong CP0_PWField;
596 #if defined(TARGET_MIPS64)
597 #define CP0PF_BDI  32    /* 37..32 */
598 #define CP0PF_GDI  24    /* 29..24 */
599 #define CP0PF_UDI  18    /* 23..18 */
600 #define CP0PF_MDI  12    /* 17..12 */
601 #define CP0PF_PTI  6     /* 11..6  */
602 #define CP0PF_PTEI 0     /*  5..0  */
603 #else
604 #define CP0PF_GDW  24    /* 29..24 */
605 #define CP0PF_UDW  18    /* 23..18 */
606 #define CP0PF_MDW  12    /* 17..12 */
607 #define CP0PF_PTW  6     /* 11..6  */
608 #define CP0PF_PTEW 0     /*  5..0  */
609 #endif
610     target_ulong CP0_PWSize;
611 #if defined(TARGET_MIPS64)
612 #define CP0PS_BDW  32    /* 37..32 */
613 #endif
614 #define CP0PS_PS   30
615 #define CP0PS_GDW  24    /* 29..24 */
616 #define CP0PS_UDW  18    /* 23..18 */
617 #define CP0PS_MDW  12    /* 17..12 */
618 #define CP0PS_PTW  6     /* 11..6  */
619 #define CP0PS_PTEW 0     /*  5..0  */
620 /*
621  * CP0 Register 6
622  */
623     int32_t CP0_Wired;
624     int32_t CP0_PWCtl;
625 #define CP0PC_PWEN      31
626 #if defined(TARGET_MIPS64)
627 #define CP0PC_PWDIREXT  30
628 #define CP0PC_XK        28
629 #define CP0PC_XS        27
630 #define CP0PC_XU        26
631 #endif
632 #define CP0PC_DPH       7
633 #define CP0PC_HUGEPG    6
634 #define CP0PC_PSN       0     /*  5..0  */
635     int32_t CP0_SRSConf0_rw_bitmask;
636     int32_t CP0_SRSConf0;
637 #define CP0SRSC0_M      31
638 #define CP0SRSC0_SRS3   20
639 #define CP0SRSC0_SRS2   10
640 #define CP0SRSC0_SRS1   0
641     int32_t CP0_SRSConf1_rw_bitmask;
642     int32_t CP0_SRSConf1;
643 #define CP0SRSC1_M      31
644 #define CP0SRSC1_SRS6   20
645 #define CP0SRSC1_SRS5   10
646 #define CP0SRSC1_SRS4   0
647     int32_t CP0_SRSConf2_rw_bitmask;
648     int32_t CP0_SRSConf2;
649 #define CP0SRSC2_M      31
650 #define CP0SRSC2_SRS9   20
651 #define CP0SRSC2_SRS8   10
652 #define CP0SRSC2_SRS7   0
653     int32_t CP0_SRSConf3_rw_bitmask;
654     int32_t CP0_SRSConf3;
655 #define CP0SRSC3_M      31
656 #define CP0SRSC3_SRS12  20
657 #define CP0SRSC3_SRS11  10
658 #define CP0SRSC3_SRS10  0
659     int32_t CP0_SRSConf4_rw_bitmask;
660     int32_t CP0_SRSConf4;
661 #define CP0SRSC4_SRS15  20
662 #define CP0SRSC4_SRS14  10
663 #define CP0SRSC4_SRS13  0
664 /*
665  * CP0 Register 7
666  */
667     int32_t CP0_HWREna;
668 /*
669  * CP0 Register 8
670  */
671     target_ulong CP0_BadVAddr;
672     uint32_t CP0_BadInstr;
673     uint32_t CP0_BadInstrP;
674     uint32_t CP0_BadInstrX;
675 /*
676  * CP0 Register 9
677  */
678     int32_t CP0_Count;
679     uint32_t CP0_SAARI;
680 #define CP0SAARI_TARGET 0    /*  5..0  */
681     uint64_t CP0_SAAR[2];
682 #define CP0SAAR_BASE    12   /* 43..12 */
683 #define CP0SAAR_SIZE    1    /*  5..1  */
684 #define CP0SAAR_EN      0
685 /*
686  * CP0 Register 10
687  */
688     target_ulong CP0_EntryHi;
689 #define CP0EnHi_EHINV 10
690     target_ulong CP0_EntryHi_ASID_mask;
691 /*
692  * CP0 Register 11
693  */
694     int32_t CP0_Compare;
695 /*
696  * CP0 Register 12
697  */
698     int32_t CP0_Status;
699 #define CP0St_CU3   31
700 #define CP0St_CU2   30
701 #define CP0St_CU1   29
702 #define CP0St_CU0   28
703 #define CP0St_RP    27
704 #define CP0St_FR    26
705 #define CP0St_RE    25
706 #define CP0St_MX    24
707 #define CP0St_PX    23
708 #define CP0St_BEV   22
709 #define CP0St_TS    21
710 #define CP0St_SR    20
711 #define CP0St_NMI   19
712 #define CP0St_IM    8
713 #define CP0St_KX    7
714 #define CP0St_SX    6
715 #define CP0St_UX    5
716 #define CP0St_KSU   3
717 #define CP0St_ERL   2
718 #define CP0St_EXL   1
719 #define CP0St_IE    0
720     int32_t CP0_IntCtl;
721 #define CP0IntCtl_IPTI 29
722 #define CP0IntCtl_IPPCI 26
723 #define CP0IntCtl_VS 5
724     int32_t CP0_SRSCtl;
725 #define CP0SRSCtl_HSS 26
726 #define CP0SRSCtl_EICSS 18
727 #define CP0SRSCtl_ESS 12
728 #define CP0SRSCtl_PSS 6
729 #define CP0SRSCtl_CSS 0
730     int32_t CP0_SRSMap;
731 #define CP0SRSMap_SSV7 28
732 #define CP0SRSMap_SSV6 24
733 #define CP0SRSMap_SSV5 20
734 #define CP0SRSMap_SSV4 16
735 #define CP0SRSMap_SSV3 12
736 #define CP0SRSMap_SSV2 8
737 #define CP0SRSMap_SSV1 4
738 #define CP0SRSMap_SSV0 0
739 /*
740  * CP0 Register 13
741  */
742     int32_t CP0_Cause;
743 #define CP0Ca_BD   31
744 #define CP0Ca_TI   30
745 #define CP0Ca_CE   28
746 #define CP0Ca_DC   27
747 #define CP0Ca_PCI  26
748 #define CP0Ca_IV   23
749 #define CP0Ca_WP   22
750 #define CP0Ca_IP    8
751 #define CP0Ca_IP_mask 0x0000FF00
752 #define CP0Ca_EC    2
753 /*
754  * CP0 Register 14
755  */
756     target_ulong CP0_EPC;
757 /*
758  * CP0 Register 15
759  */
760     int32_t CP0_PRid;
761     target_ulong CP0_EBase;
762     target_ulong CP0_EBaseWG_rw_bitmask;
763 #define CP0EBase_WG 11
764     target_ulong CP0_CMGCRBase;
765 /*
766  * CP0 Register 16
767  */
768     int32_t CP0_Config0;
769 #define CP0C0_M    31
770 #define CP0C0_K23  28    /* 30..28 */
771 #define CP0C0_KU   25    /* 27..25 */
772 #define CP0C0_MDU  20
773 #define CP0C0_MM   18
774 #define CP0C0_BM   16
775 #define CP0C0_Impl 16    /* 24..16 */
776 #define CP0C0_BE   15
777 #define CP0C0_AT   13    /* 14..13 */
778 #define CP0C0_AR   10    /* 12..10 */
779 #define CP0C0_MT   7     /*  9..7  */
780 #define CP0C0_VI   3
781 #define CP0C0_K0   0     /*  2..0  */
782     int32_t CP0_Config1;
783 #define CP0C1_M    31
784 #define CP0C1_MMU  25    /* 30..25 */
785 #define CP0C1_IS   22    /* 24..22 */
786 #define CP0C1_IL   19    /* 21..19 */
787 #define CP0C1_IA   16    /* 18..16 */
788 #define CP0C1_DS   13    /* 15..13 */
789 #define CP0C1_DL   10    /* 12..10 */
790 #define CP0C1_DA   7     /*  9..7  */
791 #define CP0C1_C2   6
792 #define CP0C1_MD   5
793 #define CP0C1_PC   4
794 #define CP0C1_WR   3
795 #define CP0C1_CA   2
796 #define CP0C1_EP   1
797 #define CP0C1_FP   0
798     int32_t CP0_Config2;
799 #define CP0C2_M    31
800 #define CP0C2_TU   28    /* 30..28 */
801 #define CP0C2_TS   24    /* 27..24 */
802 #define CP0C2_TL   20    /* 23..20 */
803 #define CP0C2_TA   16    /* 19..16 */
804 #define CP0C2_SU   12    /* 15..12 */
805 #define CP0C2_SS   8     /* 11..8  */
806 #define CP0C2_SL   4     /*  7..4  */
807 #define CP0C2_SA   0     /*  3..0  */
808     int32_t CP0_Config3;
809 #define CP0C3_M            31
810 #define CP0C3_BPG          30
811 #define CP0C3_CMGCR        29
812 #define CP0C3_MSAP         28
813 #define CP0C3_BP           27
814 #define CP0C3_BI           26
815 #define CP0C3_SC           25
816 #define CP0C3_PW           24
817 #define CP0C3_VZ           23
818 #define CP0C3_IPLV         21    /* 22..21 */
819 #define CP0C3_MMAR         18    /* 20..18 */
820 #define CP0C3_MCU          17
821 #define CP0C3_ISA_ON_EXC   16
822 #define CP0C3_ISA          14    /* 15..14 */
823 #define CP0C3_ULRI         13
824 #define CP0C3_RXI          12
825 #define CP0C3_DSP2P        11
826 #define CP0C3_DSPP         10
827 #define CP0C3_CTXTC        9
828 #define CP0C3_ITL          8
829 #define CP0C3_LPA          7
830 #define CP0C3_VEIC         6
831 #define CP0C3_VInt         5
832 #define CP0C3_SP           4
833 #define CP0C3_CDMM         3
834 #define CP0C3_MT           2
835 #define CP0C3_SM           1
836 #define CP0C3_TL           0
837     int32_t CP0_Config4;
838     int32_t CP0_Config4_rw_bitmask;
839 #define CP0C4_M            31
840 #define CP0C4_IE           29    /* 30..29 */
841 #define CP0C4_AE           28
842 #define CP0C4_VTLBSizeExt  24    /* 27..24 */
843 #define CP0C4_KScrExist    16
844 #define CP0C4_MMUExtDef    14
845 #define CP0C4_FTLBPageSize 8     /* 12..8  */
846 /* bit layout if MMUExtDef=1 */
847 #define CP0C4_MMUSizeExt   0     /*  7..0  */
848 /* bit layout if MMUExtDef=2 */
849 #define CP0C4_FTLBWays     4     /*  7..4  */
850 #define CP0C4_FTLBSets     0     /*  3..0  */
851     int32_t CP0_Config5;
852     int32_t CP0_Config5_rw_bitmask;
853 #define CP0C5_M            31
854 #define CP0C5_K            30
855 #define CP0C5_CV           29
856 #define CP0C5_EVA          28
857 #define CP0C5_MSAEn        27
858 #define CP0C5_PMJ          23    /* 25..23 */
859 #define CP0C5_WR2          22
860 #define CP0C5_NMS          21
861 #define CP0C5_ULS          20
862 #define CP0C5_XPA          19
863 #define CP0C5_CRCP         18
864 #define CP0C5_MI           17
865 #define CP0C5_GI           15    /* 16..15 */
866 #define CP0C5_CA2          14
867 #define CP0C5_XNP          13
868 #define CP0C5_DEC          11
869 #define CP0C5_L2C          10
870 #define CP0C5_UFE          9
871 #define CP0C5_FRE          8
872 #define CP0C5_VP           7
873 #define CP0C5_SBRI         6
874 #define CP0C5_MVH          5
875 #define CP0C5_LLB          4
876 #define CP0C5_MRP          3
877 #define CP0C5_UFR          2
878 #define CP0C5_NFExists     0
879     int32_t CP0_Config6;
880     int32_t CP0_Config7;
881     uint64_t CP0_LLAddr;
882     uint64_t CP0_MAAR[MIPS_MAAR_MAX];
883     int32_t CP0_MAARI;
884     /* XXX: Maybe make LLAddr per-TC? */
885 /*
886  * CP0 Register 17
887  */
888     target_ulong lladdr; /* LL virtual address compared against SC */
889     target_ulong llval;
890     uint64_t llval_wp;
891     uint32_t llnewval_wp;
892     uint64_t CP0_LLAddr_rw_bitmask;
893     int CP0_LLAddr_shift;
894 /*
895  * CP0 Register 18
896  */
897     target_ulong CP0_WatchLo[8];
898 /*
899  * CP0 Register 19
900  */
901     int32_t CP0_WatchHi[8];
902 #define CP0WH_ASID 16
903 /*
904  * CP0 Register 20
905  */
906     target_ulong CP0_XContext;
907     int32_t CP0_Framemask;
908 /*
909  * CP0 Register 23
910  */
911     int32_t CP0_Debug;
912 #define CP0DB_DBD  31
913 #define CP0DB_DM   30
914 #define CP0DB_LSNM 28
915 #define CP0DB_Doze 27
916 #define CP0DB_Halt 26
917 #define CP0DB_CNT  25
918 #define CP0DB_IBEP 24
919 #define CP0DB_DBEP 21
920 #define CP0DB_IEXI 20
921 #define CP0DB_VER  15
922 #define CP0DB_DEC  10
923 #define CP0DB_SSt  8
924 #define CP0DB_DINT 5
925 #define CP0DB_DIB  4
926 #define CP0DB_DDBS 3
927 #define CP0DB_DDBL 2
928 #define CP0DB_DBp  1
929 #define CP0DB_DSS  0
930 /*
931  * CP0 Register 24
932  */
933     target_ulong CP0_DEPC;
934 /*
935  * CP0 Register 25
936  */
937     int32_t CP0_Performance0;
938 /*
939  * CP0 Register 26
940  */
941     int32_t CP0_ErrCtl;
942 #define CP0EC_WST 29
943 #define CP0EC_SPR 28
944 #define CP0EC_ITC 26
945 /*
946  * CP0 Register 28
947  */
948     uint64_t CP0_TagLo;
949     int32_t CP0_DataLo;
950 /*
951  * CP0 Register 29
952  */
953     int32_t CP0_TagHi;
954     int32_t CP0_DataHi;
955 /*
956  * CP0 Register 30
957  */
958     target_ulong CP0_ErrorEPC;
959 /*
960  * CP0 Register 31
961  */
962     int32_t CP0_DESAVE;
963 
964     /* We waste some space so we can handle shadow registers like TCs. */
965     TCState tcs[MIPS_SHADOW_SET_MAX];
966     CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
967     /* QEMU */
968     int error_code;
969 #define EXCP_TLB_NOMATCH   0x1
970 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
971     uint32_t hflags;    /* CPU State */
972     /* TMASK defines different execution modes */
973 #define MIPS_HFLAG_TMASK  0x1F5807FF
974 #define MIPS_HFLAG_MODE   0x00007 /* execution modes                    */
975     /*
976      * The KSU flags must be the lowest bits in hflags. The flag order
977      * must be the same as defined for CP0 Status. This allows to use
978      * the bits as the value of mmu_idx.
979      */
980 #define MIPS_HFLAG_KSU    0x00003 /* kernel/supervisor/user mode mask   */
981 #define MIPS_HFLAG_UM     0x00002 /* user mode flag                     */
982 #define MIPS_HFLAG_SM     0x00001 /* supervisor mode flag               */
983 #define MIPS_HFLAG_KM     0x00000 /* kernel mode flag                   */
984 #define MIPS_HFLAG_DM     0x00004 /* Debug mode                         */
985 #define MIPS_HFLAG_64     0x00008 /* 64-bit instructions enabled        */
986 #define MIPS_HFLAG_CP0    0x00010 /* CP0 enabled                        */
987 #define MIPS_HFLAG_FPU    0x00020 /* FPU enabled                        */
988 #define MIPS_HFLAG_F64    0x00040 /* 64-bit FPU enabled                 */
989     /*
990      * True if the MIPS IV COP1X instructions can be used.  This also
991      * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
992      * and RSQRT.D.
993      */
994 #define MIPS_HFLAG_COP1X  0x00080 /* COP1X instructions enabled         */
995 #define MIPS_HFLAG_RE     0x00100 /* Reversed endianness                */
996 #define MIPS_HFLAG_AWRAP  0x00200 /* 32-bit compatibility address wrapping */
997 #define MIPS_HFLAG_M16    0x00400 /* MIPS16 mode flag                   */
998 #define MIPS_HFLAG_M16_SHIFT 10
999     /*
1000      * If translation is interrupted between the branch instruction and
1001      * the delay slot, record what type of branch it is so that we can
1002      * resume translation properly.  It might be possible to reduce
1003      * this from three bits to two.
1004      */
1005 #define MIPS_HFLAG_BMASK_BASE  0x803800
1006 #define MIPS_HFLAG_B      0x00800 /* Unconditional branch               */
1007 #define MIPS_HFLAG_BC     0x01000 /* Conditional branch                 */
1008 #define MIPS_HFLAG_BL     0x01800 /* Likely branch                      */
1009 #define MIPS_HFLAG_BR     0x02000 /* branch to register (can't link TB) */
1010     /* Extra flags about the current pending branch.  */
1011 #define MIPS_HFLAG_BMASK_EXT 0x7C000
1012 #define MIPS_HFLAG_B16    0x04000 /* branch instruction was 16 bits     */
1013 #define MIPS_HFLAG_BDS16  0x08000 /* branch requires 16-bit delay slot  */
1014 #define MIPS_HFLAG_BDS32  0x10000 /* branch requires 32-bit delay slot  */
1015 #define MIPS_HFLAG_BDS_STRICT  0x20000 /* Strict delay slot size */
1016 #define MIPS_HFLAG_BX     0x40000 /* branch exchanges execution mode    */
1017 #define MIPS_HFLAG_BMASK  (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
1018     /* MIPS DSP resources access. */
1019 #define MIPS_HFLAG_DSP    0x080000   /* Enable access to DSP resources.    */
1020 #define MIPS_HFLAG_DSP_R2 0x100000   /* Enable access to DSP R2 resources. */
1021 #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */
1022     /* Extra flag about HWREna register. */
1023 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
1024 #define MIPS_HFLAG_SBRI  0x400000 /* R6 SDBBP causes RI excpt. in user mode */
1025 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot                   */
1026 #define MIPS_HFLAG_MSA   0x1000000
1027 #define MIPS_HFLAG_FRE   0x2000000 /* FRE enabled */
1028 #define MIPS_HFLAG_ELPA  0x4000000
1029 #define MIPS_HFLAG_ITC_CACHE  0x8000000 /* CACHE instr. operates on ITC tag */
1030 #define MIPS_HFLAG_ERL   0x10000000 /* error level flag */
1031     target_ulong btarget;        /* Jump / branch target               */
1032     target_ulong bcond;          /* Branch condition (if needed)       */
1033 
1034     int SYNCI_Step; /* Address step size for SYNCI */
1035     int CCRes; /* Cycle count resolution/divisor */
1036     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
1037     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
1038     uint64_t insn_flags; /* Supported instruction set */
1039     int saarp;
1040 
1041     /* Fields up to this point are cleared by a CPU reset */
1042     struct {} end_reset_fields;
1043 
1044     CPU_COMMON
1045 
1046     /* Fields from here on are preserved across CPU reset. */
1047     CPUMIPSMVPContext *mvp;
1048 #if !defined(CONFIG_USER_ONLY)
1049     CPUMIPSTLBContext *tlb;
1050 #endif
1051 
1052     const mips_def_t *cpu_model;
1053     void *irq[8];
1054     QEMUTimer *timer; /* Internal timer */
1055     struct MIPSITUState *itu;
1056     MemoryRegion *itc_tag; /* ITC Configuration Tags */
1057     target_ulong exception_base; /* ExceptionBase input to the core */
1058 };
1059 
1060 /**
1061  * MIPSCPU:
1062  * @env: #CPUMIPSState
1063  *
1064  * A MIPS CPU.
1065  */
1066 struct MIPSCPU {
1067     /*< private >*/
1068     CPUState parent_obj;
1069     /*< public >*/
1070 
1071     CPUMIPSState env;
1072 };
1073 
1074 static inline MIPSCPU *mips_env_get_cpu(CPUMIPSState *env)
1075 {
1076     return container_of(env, MIPSCPU, env);
1077 }
1078 
1079 #define ENV_OFFSET offsetof(MIPSCPU, env)
1080 
1081 void mips_cpu_list(void);
1082 
1083 #define cpu_signal_handler cpu_mips_signal_handler
1084 #define cpu_list mips_cpu_list
1085 
1086 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
1087 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
1088 
1089 /*
1090  * MMU modes definitions. We carefully match the indices with our
1091  * hflags layout.
1092  */
1093 #define MMU_MODE0_SUFFIX _kernel
1094 #define MMU_MODE1_SUFFIX _super
1095 #define MMU_MODE2_SUFFIX _user
1096 #define MMU_MODE3_SUFFIX _error
1097 #define MMU_USER_IDX 2
1098 
1099 static inline int hflags_mmu_index(uint32_t hflags)
1100 {
1101     if (hflags & MIPS_HFLAG_ERL) {
1102         return 3; /* ERL */
1103     } else {
1104         return hflags & MIPS_HFLAG_KSU;
1105     }
1106 }
1107 
1108 static inline int cpu_mmu_index(CPUMIPSState *env, bool ifetch)
1109 {
1110     return hflags_mmu_index(env->hflags);
1111 }
1112 
1113 typedef CPUMIPSState CPUArchState;
1114 typedef MIPSCPU ArchCPU;
1115 
1116 #include "exec/cpu-all.h"
1117 
1118 /*
1119  * Memory access type :
1120  * may be needed for precise access rights control and precise exceptions.
1121  */
1122 enum {
1123     /* 1 bit to define user level / supervisor access */
1124     ACCESS_USER  = 0x00,
1125     ACCESS_SUPER = 0x01,
1126     /* 1 bit to indicate direction */
1127     ACCESS_STORE = 0x02,
1128     /* Type of instruction that generated the access */
1129     ACCESS_CODE  = 0x10, /* Code fetch access                */
1130     ACCESS_INT   = 0x20, /* Integer load/store access        */
1131     ACCESS_FLOAT = 0x30, /* floating point load/store access */
1132 };
1133 
1134 /* Exceptions */
1135 enum {
1136     EXCP_NONE          = -1,
1137     EXCP_RESET         = 0,
1138     EXCP_SRESET,
1139     EXCP_DSS,
1140     EXCP_DINT,
1141     EXCP_DDBL,
1142     EXCP_DDBS,
1143     EXCP_NMI,
1144     EXCP_MCHECK,
1145     EXCP_EXT_INTERRUPT, /* 8 */
1146     EXCP_DFWATCH,
1147     EXCP_DIB,
1148     EXCP_IWATCH,
1149     EXCP_AdEL,
1150     EXCP_AdES,
1151     EXCP_TLBF,
1152     EXCP_IBE,
1153     EXCP_DBp, /* 16 */
1154     EXCP_SYSCALL,
1155     EXCP_BREAK,
1156     EXCP_CpU,
1157     EXCP_RI,
1158     EXCP_OVERFLOW,
1159     EXCP_TRAP,
1160     EXCP_FPE,
1161     EXCP_DWATCH, /* 24 */
1162     EXCP_LTLBL,
1163     EXCP_TLBL,
1164     EXCP_TLBS,
1165     EXCP_DBE,
1166     EXCP_THREAD,
1167     EXCP_MDMX,
1168     EXCP_C2E,
1169     EXCP_CACHE, /* 32 */
1170     EXCP_DSPDIS,
1171     EXCP_MSADIS,
1172     EXCP_MSAFPE,
1173     EXCP_TLBXI,
1174     EXCP_TLBRI,
1175 
1176     EXCP_LAST = EXCP_TLBRI,
1177 };
1178 
1179 /*
1180  * This is an internally generated WAKE request line.
1181  * It is driven by the CPU itself. Raised when the MT
1182  * block wants to wake a VPE from an inactive state and
1183  * cleared when VPE goes from active to inactive.
1184  */
1185 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
1186 
1187 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
1188 
1189 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
1190 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
1191 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
1192 
1193 bool cpu_supports_cps_smp(const char *cpu_type);
1194 bool cpu_supports_isa(const char *cpu_type, uint64_t isa);
1195 void cpu_set_exception_base(int vp_index, target_ulong address);
1196 
1197 /* mips_int.c */
1198 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
1199 
1200 /* mips_itu.c */
1201 void itc_reconfigure(struct MIPSITUState *tag);
1202 
1203 /* helper.c */
1204 target_ulong exception_resume_pc(CPUMIPSState *env);
1205 
1206 static inline void restore_snan_bit_mode(CPUMIPSState *env)
1207 {
1208     set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) == 0,
1209                         &env->active_fpu.fp_status);
1210 }
1211 
1212 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
1213                                         target_ulong *cs_base, uint32_t *flags)
1214 {
1215     *pc = env->active_tc.PC;
1216     *cs_base = 0;
1217     *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
1218                             MIPS_HFLAG_HWRENA_ULR);
1219 }
1220 
1221 #endif /* MIPS_CPU_H */
1222