xref: /openbmc/qemu/target/mips/cpu.h (revision 0d5fae3e)
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 "mips-defs.h"
8 
9 #define TCG_GUEST_DEFAULT_MO (0)
10 
11 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
12 
13 /* MSA Context */
14 #define MSA_WRLEN (128)
15 
16 typedef union wr_t wr_t;
17 union wr_t {
18     int8_t  b[MSA_WRLEN / 8];
19     int16_t h[MSA_WRLEN / 16];
20     int32_t w[MSA_WRLEN / 32];
21     int64_t d[MSA_WRLEN / 64];
22 };
23 
24 typedef union fpr_t fpr_t;
25 union fpr_t {
26     float64  fd;   /* ieee double precision */
27     float32  fs[2];/* ieee single precision */
28     uint64_t d;    /* binary double fixed-point */
29     uint32_t w[2]; /* binary single fixed-point */
30 /* FPU/MSA register mapping is not tested on big-endian hosts. */
31     wr_t     wr;   /* vector data */
32 };
33 /*
34  *define FP_ENDIAN_IDX to access the same location
35  * in the fpr_t union regardless of the host endianness
36  */
37 #if defined(HOST_WORDS_BIGENDIAN)
38 #  define FP_ENDIAN_IDX 1
39 #else
40 #  define FP_ENDIAN_IDX 0
41 #endif
42 
43 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
44 struct CPUMIPSFPUContext {
45     /* Floating point registers */
46     fpr_t fpr[32];
47     float_status fp_status;
48     /* fpu implementation/revision register (fir) */
49     uint32_t fcr0;
50 #define FCR0_FREP 29
51 #define FCR0_UFRP 28
52 #define FCR0_HAS2008 23
53 #define FCR0_F64 22
54 #define FCR0_L 21
55 #define FCR0_W 20
56 #define FCR0_3D 19
57 #define FCR0_PS 18
58 #define FCR0_D 17
59 #define FCR0_S 16
60 #define FCR0_PRID 8
61 #define FCR0_REV 0
62     /* fcsr */
63     uint32_t fcr31_rw_bitmask;
64     uint32_t fcr31;
65 #define FCR31_FS 24
66 #define FCR31_ABS2008 19
67 #define FCR31_NAN2008 18
68 #define SET_FP_COND(num, env)     do { ((env).fcr31) |=                 \
69                                        ((num) ? (1 << ((num) + 24)) :   \
70                                                 (1 << 23));             \
71                                      } while (0)
72 #define CLEAR_FP_COND(num, env)   do { ((env).fcr31) &=                 \
73                                        ~((num) ? (1 << ((num) + 24)) :  \
74                                                  (1 << 23));            \
75                                      } while (0)
76 #define GET_FP_COND(env)         ((((env).fcr31 >> 24) & 0xfe) |        \
77                                  (((env).fcr31 >> 23) & 0x1))
78 #define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
79 #define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
80 #define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
81 #define SET_FP_CAUSE(reg, v)      do { (reg) = ((reg) & ~(0x3f << 12)) | \
82                                                ((v & 0x3f) << 12);       \
83                                      } while (0)
84 #define SET_FP_ENABLE(reg, v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | \
85                                                ((v & 0x1f) << 7);        \
86                                      } while (0)
87 #define SET_FP_FLAGS(reg, v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | \
88                                                ((v & 0x1f) << 2);        \
89                                      } while (0)
90 #define UPDATE_FP_FLAGS(reg, v)   do { (reg) |= ((v & 0x1f) << 2); } while (0)
91 #define FP_INEXACT        1
92 #define FP_UNDERFLOW      2
93 #define FP_OVERFLOW       4
94 #define FP_DIV0           8
95 #define FP_INVALID        16
96 #define FP_UNIMPLEMENTED  32
97 };
98 
99 #define TARGET_INSN_START_EXTRA_WORDS 2
100 
101 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
102 struct CPUMIPSMVPContext {
103     int32_t CP0_MVPControl;
104 #define CP0MVPCo_CPA    3
105 #define CP0MVPCo_STLB   2
106 #define CP0MVPCo_VPC    1
107 #define CP0MVPCo_EVP    0
108     int32_t CP0_MVPConf0;
109 #define CP0MVPC0_M      31
110 #define CP0MVPC0_TLBS   29
111 #define CP0MVPC0_GS     28
112 #define CP0MVPC0_PCP    27
113 #define CP0MVPC0_PTLBE  16
114 #define CP0MVPC0_TCA    15
115 #define CP0MVPC0_PVPE   10
116 #define CP0MVPC0_PTC    0
117     int32_t CP0_MVPConf1;
118 #define CP0MVPC1_CIM    31
119 #define CP0MVPC1_CIF    30
120 #define CP0MVPC1_PCX    20
121 #define CP0MVPC1_PCP2   10
122 #define CP0MVPC1_PCP1   0
123 };
124 
125 typedef struct mips_def_t mips_def_t;
126 
127 #define MIPS_SHADOW_SET_MAX 16
128 #define MIPS_TC_MAX 5
129 #define MIPS_FPU_MAX 1
130 #define MIPS_DSP_ACC 4
131 #define MIPS_KSCRATCH_NUM 6
132 #define MIPS_MAAR_MAX 16 /* Must be an even number. */
133 
134 
135 /*
136  *     Summary of CP0 registers
137  *     ========================
138  *
139  *
140  *     Register 0        Register 1        Register 2        Register 3
141  *     ----------        ----------        ----------        ----------
142  *
143  * 0   Index             Random            EntryLo0          EntryLo1
144  * 1   MVPControl        VPEControl        TCStatus          GlobalNumber
145  * 2   MVPConf0          VPEConf0          TCBind
146  * 3   MVPConf1          VPEConf1          TCRestart
147  * 4   VPControl         YQMask            TCHalt
148  * 5                     VPESchedule       TCContext
149  * 6                     VPEScheFBack      TCSchedule
150  * 7                     VPEOpt            TCScheFBack       TCOpt
151  *
152  *
153  *     Register 4        Register 5        Register 6        Register 7
154  *     ----------        ----------        ----------        ----------
155  *
156  * 0   Context           PageMask          Wired             HWREna
157  * 1   ContextConfig     PageGrain         SRSConf0
158  * 2   UserLocal         SegCtl0           SRSConf1
159  * 3   XContextConfig    SegCtl1           SRSConf2
160  * 4   DebugContextID    SegCtl2           SRSConf3
161  * 5   MemoryMapID       PWBase            SRSConf4
162  * 6                     PWField           PWCtl
163  * 7                     PWSize
164  *
165  *
166  *     Register 8        Register 9        Register 10       Register 11
167  *     ----------        ----------        -----------       -----------
168  *
169  * 0   BadVAddr          Count             EntryHi           Compare
170  * 1   BadInstr
171  * 2   BadInstrP
172  * 3   BadInstrX
173  * 4                                       GuestCtl1         GuestCtl0Ext
174  * 5                                       GuestCtl2
175  * 6                     SAARI             GuestCtl3
176  * 7                     SAAR
177  *
178  *
179  *     Register 12       Register 13       Register 14       Register 15
180  *     -----------       -----------       -----------       -----------
181  *
182  * 0   Status            Cause             EPC               PRId
183  * 1   IntCtl                                                EBase
184  * 2   SRSCtl                              NestedEPC         CDMMBase
185  * 3   SRSMap                                                CMGCRBase
186  * 4   View_IPL          View_RIPL                           BEVVA
187  * 5   SRSMap2           NestedExc
188  * 6   GuestCtl0
189  * 7   GTOffset
190  *
191  *
192  *     Register 16       Register 17       Register 18       Register 19
193  *     -----------       -----------       -----------       -----------
194  *
195  * 0   Config            LLAddr            WatchLo0          WatchHi
196  * 1   Config1           MAAR              WatchLo1          WatchHi
197  * 2   Config2           MAARI             WatchLo2          WatchHi
198  * 3   Config3                             WatchLo3          WatchHi
199  * 4   Config4                             WatchLo4          WatchHi
200  * 5   Config5                             WatchLo5          WatchHi
201  * 6                                       WatchLo6          WatchHi
202  * 7                                       WatchLo7          WatchHi
203  *
204  *
205  *     Register 20       Register 21       Register 22       Register 23
206  *     -----------       -----------       -----------       -----------
207  *
208  * 0   XContext                                              Debug
209  * 1                                                         TraceControl
210  * 2                                                         TraceControl2
211  * 3                                                         UserTraceData1
212  * 4                                                         TraceIBPC
213  * 5                                                         TraceDBPC
214  * 6                                                         Debug2
215  * 7
216  *
217  *
218  *     Register 24       Register 25       Register 26       Register 27
219  *     -----------       -----------       -----------       -----------
220  *
221  * 0   DEPC              PerfCnt            ErrCtl          CacheErr
222  * 1                     PerfCnt
223  * 2   TraceControl3     PerfCnt
224  * 3   UserTraceData2    PerfCnt
225  * 4                     PerfCnt
226  * 5                     PerfCnt
227  * 6                     PerfCnt
228  * 7                     PerfCnt
229  *
230  *
231  *     Register 28       Register 29       Register 30       Register 31
232  *     -----------       -----------       -----------       -----------
233  *
234  * 0   DataLo            DataHi            ErrorEPC          DESAVE
235  * 1   TagLo             TagHi
236  * 2   DataLo1           DataHi1                             KScratch<n>
237  * 3   TagLo1            TagHi1                              KScratch<n>
238  * 4   DataLo2           DataHi2                             KScratch<n>
239  * 5   TagLo2            TagHi2                              KScratch<n>
240  * 6   DataLo3           DataHi3                             KScratch<n>
241  * 7   TagLo3            TagHi3                              KScratch<n>
242  *
243  */
244 #define CP0_REGISTER_00     0
245 #define CP0_REGISTER_01     1
246 #define CP0_REGISTER_02     2
247 #define CP0_REGISTER_03     3
248 #define CP0_REGISTER_04     4
249 #define CP0_REGISTER_05     5
250 #define CP0_REGISTER_06     6
251 #define CP0_REGISTER_07     7
252 #define CP0_REGISTER_08     8
253 #define CP0_REGISTER_09     9
254 #define CP0_REGISTER_10    10
255 #define CP0_REGISTER_11    11
256 #define CP0_REGISTER_12    12
257 #define CP0_REGISTER_13    13
258 #define CP0_REGISTER_14    14
259 #define CP0_REGISTER_15    15
260 #define CP0_REGISTER_16    16
261 #define CP0_REGISTER_17    17
262 #define CP0_REGISTER_18    18
263 #define CP0_REGISTER_19    19
264 #define CP0_REGISTER_20    20
265 #define CP0_REGISTER_21    21
266 #define CP0_REGISTER_22    22
267 #define CP0_REGISTER_23    23
268 #define CP0_REGISTER_24    24
269 #define CP0_REGISTER_25    25
270 #define CP0_REGISTER_26    26
271 #define CP0_REGISTER_27    27
272 #define CP0_REGISTER_28    28
273 #define CP0_REGISTER_29    29
274 #define CP0_REGISTER_30    30
275 #define CP0_REGISTER_31    31
276 
277 
278 /* CP0 Register 00 */
279 #define CP0_REG00__INDEX           0
280 #define CP0_REG00__MVPCONTROL      1
281 #define CP0_REG00__MVPCONF0        2
282 #define CP0_REG00__MVPCONF1        3
283 #define CP0_REG00__VPCONTROL       4
284 /* CP0 Register 01 */
285 #define CP0_REG01__RANDOM          0
286 #define CP0_REG01__VPECONTROL      1
287 #define CP0_REG01__VPECONF0        2
288 #define CP0_REG01__VPECONF1        3
289 #define CP0_REG01__YQMASK          4
290 #define CP0_REG01__VPESCHEDULE     5
291 #define CP0_REG01__VPESCHEFBACK    6
292 #define CP0_REG01__VPEOPT          7
293 /* CP0 Register 02 */
294 #define CP0_REG02__ENTRYLO0        0
295 #define CP0_REG02__TCSTATUS        1
296 #define CP0_REG02__TCBIND          2
297 #define CP0_REG02__TCRESTART       3
298 #define CP0_REG02__TCHALT          4
299 #define CP0_REG02__TCCONTEXT       5
300 #define CP0_REG02__TCSCHEDULE      6
301 #define CP0_REG02__TCSCHEFBACK     7
302 /* CP0 Register 03 */
303 #define CP0_REG03__ENTRYLO1        0
304 #define CP0_REG03__GLOBALNUM       1
305 #define CP0_REG03__TCOPT           7
306 /* CP0 Register 04 */
307 #define CP0_REG04__CONTEXT         0
308 #define CP0_REG04__CONTEXTCONFIG   1
309 #define CP0_REG04__USERLOCAL       2
310 #define CP0_REG04__XCONTEXTCONFIG  3
311 #define CP0_REG04__DBGCONTEXTID    4
312 #define CP0_REG00__MMID            5
313 /* CP0 Register 05 */
314 #define CP0_REG05__PAGEMASK        0
315 #define CP0_REG05__PAGEGRAIN       1
316 #define CP0_REG05__SEGCTL0         2
317 #define CP0_REG05__SEGCTL1         3
318 #define CP0_REG05__SEGCTL2         4
319 #define CP0_REG05__PWBASE          5
320 #define CP0_REG05__PWFIELD         6
321 #define CP0_REG05__PWSIZE          7
322 /* CP0 Register 06 */
323 #define CP0_REG06__WIRED           0
324 #define CP0_REG06__SRSCONF0        1
325 #define CP0_REG06__SRSCONF1        2
326 #define CP0_REG06__SRSCONF2        3
327 #define CP0_REG06__SRSCONF3        4
328 #define CP0_REG06__SRSCONF4        5
329 #define CP0_REG06__PWCTL           6
330 /* CP0 Register 07 */
331 #define CP0_REG07__HWRENA          0
332 /* CP0 Register 08 */
333 #define CP0_REG08__BADVADDR        0
334 #define CP0_REG08__BADINSTR        1
335 #define CP0_REG08__BADINSTRP       2
336 #define CP0_REG08__BADINSTRX       3
337 /* CP0 Register 09 */
338 #define CP0_REG09__COUNT           0
339 #define CP0_REG09__SAARI           6
340 #define CP0_REG09__SAAR            7
341 /* CP0 Register 10 */
342 #define CP0_REG10__ENTRYHI         0
343 #define CP0_REG10__GUESTCTL1       4
344 #define CP0_REG10__GUESTCTL2       5
345 #define CP0_REG10__GUESTCTL3       6
346 /* CP0 Register 11 */
347 #define CP0_REG11__COMPARE         0
348 #define CP0_REG11__GUESTCTL0EXT    4
349 /* CP0 Register 12 */
350 #define CP0_REG12__STATUS          0
351 #define CP0_REG12__INTCTL          1
352 #define CP0_REG12__SRSCTL          2
353 #define CP0_REG12__SRSMAP          3
354 #define CP0_REG12__VIEW_IPL        4
355 #define CP0_REG12__SRSMAP2         5
356 #define CP0_REG12__GUESTCTL0       6
357 #define CP0_REG12__GTOFFSET        7
358 /* CP0 Register 13 */
359 #define CP0_REG13__CAUSE           0
360 #define CP0_REG13__VIEW_RIPL       4
361 #define CP0_REG13__NESTEDEXC       5
362 /* CP0 Register 14 */
363 #define CP0_REG14__EPC             0
364 #define CP0_REG14__NESTEDEPC       2
365 /* CP0 Register 15 */
366 #define CP0_REG15__PRID            0
367 #define CP0_REG15__EBASE           1
368 #define CP0_REG15__CDMMBASE        2
369 #define CP0_REG15__CMGCRBASE       3
370 #define CP0_REG15__BEVVA           4
371 /* CP0 Register 16 */
372 #define CP0_REG16__CONFIG          0
373 #define CP0_REG16__CONFIG1         1
374 #define CP0_REG16__CONFIG2         2
375 #define CP0_REG16__CONFIG3         3
376 #define CP0_REG16__CONFIG4         4
377 #define CP0_REG16__CONFIG5         5
378 #define CP0_REG16__CONFIG6         6
379 #define CP0_REG16__CONFIG7         7
380 /* CP0 Register 17 */
381 #define CP0_REG17__LLADDR          0
382 #define CP0_REG17__MAAR            1
383 #define CP0_REG17__MAARI           2
384 /* CP0 Register 18 */
385 #define CP0_REG18__WATCHLO0        0
386 #define CP0_REG18__WATCHLO1        1
387 #define CP0_REG18__WATCHLO2        2
388 #define CP0_REG18__WATCHLO3        3
389 #define CP0_REG18__WATCHLO4        4
390 #define CP0_REG18__WATCHLO5        5
391 #define CP0_REG18__WATCHLO6        6
392 #define CP0_REG18__WATCHLO7        7
393 /* CP0 Register 19 */
394 #define CP0_REG19__WATCHHI0        0
395 #define CP0_REG19__WATCHHI1        1
396 #define CP0_REG19__WATCHHI2        2
397 #define CP0_REG19__WATCHHI3        3
398 #define CP0_REG19__WATCHHI4        4
399 #define CP0_REG19__WATCHHI5        5
400 #define CP0_REG19__WATCHHI6        6
401 #define CP0_REG19__WATCHHI7        7
402 /* CP0 Register 20 */
403 #define CP0_REG20__XCONTEXT        0
404 /* CP0 Register 21 */
405 /* CP0 Register 22 */
406 /* CP0 Register 23 */
407 #define CP0_REG23__DEBUG           0
408 #define CP0_REG23__TRACECONTROL    1
409 #define CP0_REG23__TRACECONTROL2   2
410 #define CP0_REG23__USERTRACEDATA1  3
411 #define CP0_REG23__TRACEIBPC       4
412 #define CP0_REG23__TRACEDBPC       5
413 #define CP0_REG23__DEBUG2          6
414 /* CP0 Register 24 */
415 #define CP0_REG24__DEPC            0
416 /* CP0 Register 25 */
417 #define CP0_REG25__PERFCTL0        0
418 #define CP0_REG25__PERFCNT0        1
419 #define CP0_REG25__PERFCTL1        2
420 #define CP0_REG25__PERFCNT1        3
421 #define CP0_REG25__PERFCTL2        4
422 #define CP0_REG25__PERFCNT2        5
423 #define CP0_REG25__PERFCTL3        6
424 #define CP0_REG25__PERFCNT3        7
425 /* CP0 Register 26 */
426 #define CP0_REG26__ERRCTL          0
427 /* CP0 Register 27 */
428 #define CP0_REG27__CACHERR         0
429 /* CP0 Register 28 */
430 #define CP0_REG28__TAGLO           0
431 #define CP0_REG28__DATALO          1
432 #define CP0_REG28__TAGLO1          2
433 #define CP0_REG28__DATALO1         3
434 #define CP0_REG28__TAGLO2          4
435 #define CP0_REG28__DATALO2         5
436 #define CP0_REG28__TAGLO3          6
437 #define CP0_REG28__DATALO3         7
438 /* CP0 Register 29 */
439 #define CP0_REG29__TAGHI           0
440 #define CP0_REG29__DATAHI          1
441 #define CP0_REG29__TAGHI1          2
442 #define CP0_REG29__DATAHI1         3
443 #define CP0_REG29__TAGHI2          4
444 #define CP0_REG29__DATAHI2         5
445 #define CP0_REG29__TAGHI3          6
446 #define CP0_REG29__DATAHI3         7
447 /* CP0 Register 30 */
448 #define CP0_REG30__ERROREPC        0
449 /* CP0 Register 31 */
450 #define CP0_REG31__DESAVE          0
451 #define CP0_REG31__KSCRATCH1       2
452 #define CP0_REG31__KSCRATCH2       3
453 #define CP0_REG31__KSCRATCH3       4
454 #define CP0_REG31__KSCRATCH4       5
455 #define CP0_REG31__KSCRATCH5       6
456 #define CP0_REG31__KSCRATCH6       7
457 
458 
459 typedef struct TCState TCState;
460 struct TCState {
461     target_ulong gpr[32];
462     target_ulong PC;
463     target_ulong HI[MIPS_DSP_ACC];
464     target_ulong LO[MIPS_DSP_ACC];
465     target_ulong ACX[MIPS_DSP_ACC];
466     target_ulong DSPControl;
467     int32_t CP0_TCStatus;
468 #define CP0TCSt_TCU3    31
469 #define CP0TCSt_TCU2    30
470 #define CP0TCSt_TCU1    29
471 #define CP0TCSt_TCU0    28
472 #define CP0TCSt_TMX     27
473 #define CP0TCSt_RNST    23
474 #define CP0TCSt_TDS     21
475 #define CP0TCSt_DT      20
476 #define CP0TCSt_DA      15
477 #define CP0TCSt_A       13
478 #define CP0TCSt_TKSU    11
479 #define CP0TCSt_IXMT    10
480 #define CP0TCSt_TASID   0
481     int32_t CP0_TCBind;
482 #define CP0TCBd_CurTC   21
483 #define CP0TCBd_TBE     17
484 #define CP0TCBd_CurVPE  0
485     target_ulong CP0_TCHalt;
486     target_ulong CP0_TCContext;
487     target_ulong CP0_TCSchedule;
488     target_ulong CP0_TCScheFBack;
489     int32_t CP0_Debug_tcstatus;
490     target_ulong CP0_UserLocal;
491 
492     int32_t msacsr;
493 
494 #define MSACSR_FS       24
495 #define MSACSR_FS_MASK  (1 << MSACSR_FS)
496 #define MSACSR_NX       18
497 #define MSACSR_NX_MASK  (1 << MSACSR_NX)
498 #define MSACSR_CEF      2
499 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF)
500 #define MSACSR_RM       0
501 #define MSACSR_RM_MASK  (0x3 << MSACSR_RM)
502 #define MSACSR_MASK     (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \
503         MSACSR_FS_MASK)
504 
505     float_status msa_fp_status;
506 
507     /* Upper 64-bit MMRs (multimedia registers); the lower 64-bit are GPRs */
508     uint64_t mmr[32];
509 
510 #define NUMBER_OF_MXU_REGISTERS 16
511     target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
512     target_ulong mxu_cr;
513 #define MXU_CR_LC       31
514 #define MXU_CR_RC       30
515 #define MXU_CR_BIAS     2
516 #define MXU_CR_RD_EN    1
517 #define MXU_CR_MXU_EN   0
518 
519 };
520 
521 struct MIPSITUState;
522 typedef struct CPUMIPSState CPUMIPSState;
523 struct CPUMIPSState {
524     TCState active_tc;
525     CPUMIPSFPUContext active_fpu;
526 
527     uint32_t current_tc;
528     uint32_t current_fpu;
529 
530     uint32_t SEGBITS;
531     uint32_t PABITS;
532 #if defined(TARGET_MIPS64)
533 # define PABITS_BASE 36
534 #else
535 # define PABITS_BASE 32
536 #endif
537     target_ulong SEGMask;
538     uint64_t PAMask;
539 #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
540 
541     int32_t msair;
542 #define MSAIR_ProcID    8
543 #define MSAIR_Rev       0
544 
545 /*
546  * CP0 Register 0
547  */
548     int32_t CP0_Index;
549     /* CP0_MVP* are per MVP registers. */
550     int32_t CP0_VPControl;
551 #define CP0VPCtl_DIS    0
552 /*
553  * CP0 Register 1
554  */
555     int32_t CP0_Random;
556     int32_t CP0_VPEControl;
557 #define CP0VPECo_YSI    21
558 #define CP0VPECo_GSI    20
559 #define CP0VPECo_EXCPT  16
560 #define CP0VPECo_TE     15
561 #define CP0VPECo_TargTC 0
562     int32_t CP0_VPEConf0;
563 #define CP0VPEC0_M      31
564 #define CP0VPEC0_XTC    21
565 #define CP0VPEC0_TCS    19
566 #define CP0VPEC0_SCS    18
567 #define CP0VPEC0_DSC    17
568 #define CP0VPEC0_ICS    16
569 #define CP0VPEC0_MVP    1
570 #define CP0VPEC0_VPA    0
571     int32_t CP0_VPEConf1;
572 #define CP0VPEC1_NCX    20
573 #define CP0VPEC1_NCP2   10
574 #define CP0VPEC1_NCP1   0
575     target_ulong CP0_YQMask;
576     target_ulong CP0_VPESchedule;
577     target_ulong CP0_VPEScheFBack;
578     int32_t CP0_VPEOpt;
579 #define CP0VPEOpt_IWX7  15
580 #define CP0VPEOpt_IWX6  14
581 #define CP0VPEOpt_IWX5  13
582 #define CP0VPEOpt_IWX4  12
583 #define CP0VPEOpt_IWX3  11
584 #define CP0VPEOpt_IWX2  10
585 #define CP0VPEOpt_IWX1  9
586 #define CP0VPEOpt_IWX0  8
587 #define CP0VPEOpt_DWX7  7
588 #define CP0VPEOpt_DWX6  6
589 #define CP0VPEOpt_DWX5  5
590 #define CP0VPEOpt_DWX4  4
591 #define CP0VPEOpt_DWX3  3
592 #define CP0VPEOpt_DWX2  2
593 #define CP0VPEOpt_DWX1  1
594 #define CP0VPEOpt_DWX0  0
595 /*
596  * CP0 Register 2
597  */
598     uint64_t CP0_EntryLo0;
599 /*
600  * CP0 Register 3
601  */
602     uint64_t CP0_EntryLo1;
603 #if defined(TARGET_MIPS64)
604 # define CP0EnLo_RI 63
605 # define CP0EnLo_XI 62
606 #else
607 # define CP0EnLo_RI 31
608 # define CP0EnLo_XI 30
609 #endif
610     int32_t CP0_GlobalNumber;
611 #define CP0GN_VPId 0
612 /*
613  * CP0 Register 4
614  */
615     target_ulong CP0_Context;
616     int32_t CP0_MemoryMapID;
617 /*
618  * CP0 Register 5
619  */
620     int32_t CP0_PageMask;
621     int32_t CP0_PageGrain_rw_bitmask;
622     int32_t CP0_PageGrain;
623 #define CP0PG_RIE 31
624 #define CP0PG_XIE 30
625 #define CP0PG_ELPA 29
626 #define CP0PG_IEC 27
627     target_ulong CP0_SegCtl0;
628     target_ulong CP0_SegCtl1;
629     target_ulong CP0_SegCtl2;
630 #define CP0SC_PA        9
631 #define CP0SC_PA_MASK   (0x7FULL << CP0SC_PA)
632 #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA)
633 #define CP0SC_AM        4
634 #define CP0SC_AM_MASK   (0x7ULL << CP0SC_AM)
635 #define CP0SC_AM_UK     0ULL
636 #define CP0SC_AM_MK     1ULL
637 #define CP0SC_AM_MSK    2ULL
638 #define CP0SC_AM_MUSK   3ULL
639 #define CP0SC_AM_MUSUK  4ULL
640 #define CP0SC_AM_USK    5ULL
641 #define CP0SC_AM_UUSK   7ULL
642 #define CP0SC_EU        3
643 #define CP0SC_EU_MASK   (1ULL << CP0SC_EU)
644 #define CP0SC_C         0
645 #define CP0SC_C_MASK    (0x7ULL << CP0SC_C)
646 #define CP0SC_MASK      (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
647                          CP0SC_PA_MASK)
648 #define CP0SC_1GMASK    (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \
649                          CP0SC_PA_1GMASK)
650 #define CP0SC0_MASK     (CP0SC_MASK | (CP0SC_MASK << 16))
651 #define CP0SC1_XAM      59
652 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM)
653 #define CP0SC1_MASK     (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK)
654 #define CP0SC2_XR       56
655 #define CP0SC2_XR_MASK  (0xFFULL << CP0SC2_XR)
656 #define CP0SC2_MASK     (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK)
657     target_ulong CP0_PWBase;
658     target_ulong CP0_PWField;
659 #if defined(TARGET_MIPS64)
660 #define CP0PF_BDI  32    /* 37..32 */
661 #define CP0PF_GDI  24    /* 29..24 */
662 #define CP0PF_UDI  18    /* 23..18 */
663 #define CP0PF_MDI  12    /* 17..12 */
664 #define CP0PF_PTI  6     /* 11..6  */
665 #define CP0PF_PTEI 0     /*  5..0  */
666 #else
667 #define CP0PF_GDW  24    /* 29..24 */
668 #define CP0PF_UDW  18    /* 23..18 */
669 #define CP0PF_MDW  12    /* 17..12 */
670 #define CP0PF_PTW  6     /* 11..6  */
671 #define CP0PF_PTEW 0     /*  5..0  */
672 #endif
673     target_ulong CP0_PWSize;
674 #if defined(TARGET_MIPS64)
675 #define CP0PS_BDW  32    /* 37..32 */
676 #endif
677 #define CP0PS_PS   30
678 #define CP0PS_GDW  24    /* 29..24 */
679 #define CP0PS_UDW  18    /* 23..18 */
680 #define CP0PS_MDW  12    /* 17..12 */
681 #define CP0PS_PTW  6     /* 11..6  */
682 #define CP0PS_PTEW 0     /*  5..0  */
683 /*
684  * CP0 Register 6
685  */
686     int32_t CP0_Wired;
687     int32_t CP0_PWCtl;
688 #define CP0PC_PWEN      31
689 #if defined(TARGET_MIPS64)
690 #define CP0PC_PWDIREXT  30
691 #define CP0PC_XK        28
692 #define CP0PC_XS        27
693 #define CP0PC_XU        26
694 #endif
695 #define CP0PC_DPH       7
696 #define CP0PC_HUGEPG    6
697 #define CP0PC_PSN       0     /*  5..0  */
698     int32_t CP0_SRSConf0_rw_bitmask;
699     int32_t CP0_SRSConf0;
700 #define CP0SRSC0_M      31
701 #define CP0SRSC0_SRS3   20
702 #define CP0SRSC0_SRS2   10
703 #define CP0SRSC0_SRS1   0
704     int32_t CP0_SRSConf1_rw_bitmask;
705     int32_t CP0_SRSConf1;
706 #define CP0SRSC1_M      31
707 #define CP0SRSC1_SRS6   20
708 #define CP0SRSC1_SRS5   10
709 #define CP0SRSC1_SRS4   0
710     int32_t CP0_SRSConf2_rw_bitmask;
711     int32_t CP0_SRSConf2;
712 #define CP0SRSC2_M      31
713 #define CP0SRSC2_SRS9   20
714 #define CP0SRSC2_SRS8   10
715 #define CP0SRSC2_SRS7   0
716     int32_t CP0_SRSConf3_rw_bitmask;
717     int32_t CP0_SRSConf3;
718 #define CP0SRSC3_M      31
719 #define CP0SRSC3_SRS12  20
720 #define CP0SRSC3_SRS11  10
721 #define CP0SRSC3_SRS10  0
722     int32_t CP0_SRSConf4_rw_bitmask;
723     int32_t CP0_SRSConf4;
724 #define CP0SRSC4_SRS15  20
725 #define CP0SRSC4_SRS14  10
726 #define CP0SRSC4_SRS13  0
727 /*
728  * CP0 Register 7
729  */
730     int32_t CP0_HWREna;
731 /*
732  * CP0 Register 8
733  */
734     target_ulong CP0_BadVAddr;
735     uint32_t CP0_BadInstr;
736     uint32_t CP0_BadInstrP;
737     uint32_t CP0_BadInstrX;
738 /*
739  * CP0 Register 9
740  */
741     int32_t CP0_Count;
742     uint32_t CP0_SAARI;
743 #define CP0SAARI_TARGET 0    /*  5..0  */
744     uint64_t CP0_SAAR[2];
745 #define CP0SAAR_BASE    12   /* 43..12 */
746 #define CP0SAAR_SIZE    1    /*  5..1  */
747 #define CP0SAAR_EN      0
748 /*
749  * CP0 Register 10
750  */
751     target_ulong CP0_EntryHi;
752 #define CP0EnHi_EHINV 10
753     target_ulong CP0_EntryHi_ASID_mask;
754 /*
755  * CP0 Register 11
756  */
757     int32_t CP0_Compare;
758 /*
759  * CP0 Register 12
760  */
761     int32_t CP0_Status;
762 #define CP0St_CU3   31
763 #define CP0St_CU2   30
764 #define CP0St_CU1   29
765 #define CP0St_CU0   28
766 #define CP0St_RP    27
767 #define CP0St_FR    26
768 #define CP0St_RE    25
769 #define CP0St_MX    24
770 #define CP0St_PX    23
771 #define CP0St_BEV   22
772 #define CP0St_TS    21
773 #define CP0St_SR    20
774 #define CP0St_NMI   19
775 #define CP0St_IM    8
776 #define CP0St_KX    7
777 #define CP0St_SX    6
778 #define CP0St_UX    5
779 #define CP0St_KSU   3
780 #define CP0St_ERL   2
781 #define CP0St_EXL   1
782 #define CP0St_IE    0
783     int32_t CP0_IntCtl;
784 #define CP0IntCtl_IPTI 29
785 #define CP0IntCtl_IPPCI 26
786 #define CP0IntCtl_VS 5
787     int32_t CP0_SRSCtl;
788 #define CP0SRSCtl_HSS 26
789 #define CP0SRSCtl_EICSS 18
790 #define CP0SRSCtl_ESS 12
791 #define CP0SRSCtl_PSS 6
792 #define CP0SRSCtl_CSS 0
793     int32_t CP0_SRSMap;
794 #define CP0SRSMap_SSV7 28
795 #define CP0SRSMap_SSV6 24
796 #define CP0SRSMap_SSV5 20
797 #define CP0SRSMap_SSV4 16
798 #define CP0SRSMap_SSV3 12
799 #define CP0SRSMap_SSV2 8
800 #define CP0SRSMap_SSV1 4
801 #define CP0SRSMap_SSV0 0
802 /*
803  * CP0 Register 13
804  */
805     int32_t CP0_Cause;
806 #define CP0Ca_BD   31
807 #define CP0Ca_TI   30
808 #define CP0Ca_CE   28
809 #define CP0Ca_DC   27
810 #define CP0Ca_PCI  26
811 #define CP0Ca_IV   23
812 #define CP0Ca_WP   22
813 #define CP0Ca_IP    8
814 #define CP0Ca_IP_mask 0x0000FF00
815 #define CP0Ca_EC    2
816 /*
817  * CP0 Register 14
818  */
819     target_ulong CP0_EPC;
820 /*
821  * CP0 Register 15
822  */
823     int32_t CP0_PRid;
824     target_ulong CP0_EBase;
825     target_ulong CP0_EBaseWG_rw_bitmask;
826 #define CP0EBase_WG 11
827     target_ulong CP0_CMGCRBase;
828 /*
829  * CP0 Register 16
830  */
831     int32_t CP0_Config0;
832 #define CP0C0_M    31
833 #define CP0C0_K23  28    /* 30..28 */
834 #define CP0C0_KU   25    /* 27..25 */
835 #define CP0C0_MDU  20
836 #define CP0C0_MM   18
837 #define CP0C0_BM   16
838 #define CP0C0_Impl 16    /* 24..16 */
839 #define CP0C0_BE   15
840 #define CP0C0_AT   13    /* 14..13 */
841 #define CP0C0_AR   10    /* 12..10 */
842 #define CP0C0_MT   7     /*  9..7  */
843 #define CP0C0_VI   3
844 #define CP0C0_K0   0     /*  2..0  */
845     int32_t CP0_Config1;
846 #define CP0C1_M    31
847 #define CP0C1_MMU  25    /* 30..25 */
848 #define CP0C1_IS   22    /* 24..22 */
849 #define CP0C1_IL   19    /* 21..19 */
850 #define CP0C1_IA   16    /* 18..16 */
851 #define CP0C1_DS   13    /* 15..13 */
852 #define CP0C1_DL   10    /* 12..10 */
853 #define CP0C1_DA   7     /*  9..7  */
854 #define CP0C1_C2   6
855 #define CP0C1_MD   5
856 #define CP0C1_PC   4
857 #define CP0C1_WR   3
858 #define CP0C1_CA   2
859 #define CP0C1_EP   1
860 #define CP0C1_FP   0
861     int32_t CP0_Config2;
862 #define CP0C2_M    31
863 #define CP0C2_TU   28    /* 30..28 */
864 #define CP0C2_TS   24    /* 27..24 */
865 #define CP0C2_TL   20    /* 23..20 */
866 #define CP0C2_TA   16    /* 19..16 */
867 #define CP0C2_SU   12    /* 15..12 */
868 #define CP0C2_SS   8     /* 11..8  */
869 #define CP0C2_SL   4     /*  7..4  */
870 #define CP0C2_SA   0     /*  3..0  */
871     int32_t CP0_Config3;
872 #define CP0C3_M            31
873 #define CP0C3_BPG          30
874 #define CP0C3_CMGCR        29
875 #define CP0C3_MSAP         28
876 #define CP0C3_BP           27
877 #define CP0C3_BI           26
878 #define CP0C3_SC           25
879 #define CP0C3_PW           24
880 #define CP0C3_VZ           23
881 #define CP0C3_IPLV         21    /* 22..21 */
882 #define CP0C3_MMAR         18    /* 20..18 */
883 #define CP0C3_MCU          17
884 #define CP0C3_ISA_ON_EXC   16
885 #define CP0C3_ISA          14    /* 15..14 */
886 #define CP0C3_ULRI         13
887 #define CP0C3_RXI          12
888 #define CP0C3_DSP2P        11
889 #define CP0C3_DSPP         10
890 #define CP0C3_CTXTC        9
891 #define CP0C3_ITL          8
892 #define CP0C3_LPA          7
893 #define CP0C3_VEIC         6
894 #define CP0C3_VInt         5
895 #define CP0C3_SP           4
896 #define CP0C3_CDMM         3
897 #define CP0C3_MT           2
898 #define CP0C3_SM           1
899 #define CP0C3_TL           0
900     int32_t CP0_Config4;
901     int32_t CP0_Config4_rw_bitmask;
902 #define CP0C4_M            31
903 #define CP0C4_IE           29    /* 30..29 */
904 #define CP0C4_AE           28
905 #define CP0C4_VTLBSizeExt  24    /* 27..24 */
906 #define CP0C4_KScrExist    16
907 #define CP0C4_MMUExtDef    14
908 #define CP0C4_FTLBPageSize 8     /* 12..8  */
909 /* bit layout if MMUExtDef=1 */
910 #define CP0C4_MMUSizeExt   0     /*  7..0  */
911 /* bit layout if MMUExtDef=2 */
912 #define CP0C4_FTLBWays     4     /*  7..4  */
913 #define CP0C4_FTLBSets     0     /*  3..0  */
914     int32_t CP0_Config5;
915     int32_t CP0_Config5_rw_bitmask;
916 #define CP0C5_M            31
917 #define CP0C5_K            30
918 #define CP0C5_CV           29
919 #define CP0C5_EVA          28
920 #define CP0C5_MSAEn        27
921 #define CP0C5_PMJ          23    /* 25..23 */
922 #define CP0C5_WR2          22
923 #define CP0C5_NMS          21
924 #define CP0C5_ULS          20
925 #define CP0C5_XPA          19
926 #define CP0C5_CRCP         18
927 #define CP0C5_MI           17
928 #define CP0C5_GI           15    /* 16..15 */
929 #define CP0C5_CA2          14
930 #define CP0C5_XNP          13
931 #define CP0C5_DEC          11
932 #define CP0C5_L2C          10
933 #define CP0C5_UFE          9
934 #define CP0C5_FRE          8
935 #define CP0C5_VP           7
936 #define CP0C5_SBRI         6
937 #define CP0C5_MVH          5
938 #define CP0C5_LLB          4
939 #define CP0C5_MRP          3
940 #define CP0C5_UFR          2
941 #define CP0C5_NFExists     0
942     int32_t CP0_Config6;
943     int32_t CP0_Config7;
944     uint64_t CP0_LLAddr;
945     uint64_t CP0_MAAR[MIPS_MAAR_MAX];
946     int32_t CP0_MAARI;
947     /* XXX: Maybe make LLAddr per-TC? */
948 /*
949  * CP0 Register 17
950  */
951     target_ulong lladdr; /* LL virtual address compared against SC */
952     target_ulong llval;
953     uint64_t llval_wp;
954     uint32_t llnewval_wp;
955     uint64_t CP0_LLAddr_rw_bitmask;
956     int CP0_LLAddr_shift;
957 /*
958  * CP0 Register 18
959  */
960     target_ulong CP0_WatchLo[8];
961 /*
962  * CP0 Register 19
963  */
964     int32_t CP0_WatchHi[8];
965 #define CP0WH_ASID 16
966 /*
967  * CP0 Register 20
968  */
969     target_ulong CP0_XContext;
970     int32_t CP0_Framemask;
971 /*
972  * CP0 Register 23
973  */
974     int32_t CP0_Debug;
975 #define CP0DB_DBD  31
976 #define CP0DB_DM   30
977 #define CP0DB_LSNM 28
978 #define CP0DB_Doze 27
979 #define CP0DB_Halt 26
980 #define CP0DB_CNT  25
981 #define CP0DB_IBEP 24
982 #define CP0DB_DBEP 21
983 #define CP0DB_IEXI 20
984 #define CP0DB_VER  15
985 #define CP0DB_DEC  10
986 #define CP0DB_SSt  8
987 #define CP0DB_DINT 5
988 #define CP0DB_DIB  4
989 #define CP0DB_DDBS 3
990 #define CP0DB_DDBL 2
991 #define CP0DB_DBp  1
992 #define CP0DB_DSS  0
993 /*
994  * CP0 Register 24
995  */
996     target_ulong CP0_DEPC;
997 /*
998  * CP0 Register 25
999  */
1000     int32_t CP0_Performance0;
1001 /*
1002  * CP0 Register 26
1003  */
1004     int32_t CP0_ErrCtl;
1005 #define CP0EC_WST 29
1006 #define CP0EC_SPR 28
1007 #define CP0EC_ITC 26
1008 /*
1009  * CP0 Register 28
1010  */
1011     uint64_t CP0_TagLo;
1012     int32_t CP0_DataLo;
1013 /*
1014  * CP0 Register 29
1015  */
1016     int32_t CP0_TagHi;
1017     int32_t CP0_DataHi;
1018 /*
1019  * CP0 Register 30
1020  */
1021     target_ulong CP0_ErrorEPC;
1022 /*
1023  * CP0 Register 31
1024  */
1025     int32_t CP0_DESAVE;
1026     target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM];
1027 
1028     /* We waste some space so we can handle shadow registers like TCs. */
1029     TCState tcs[MIPS_SHADOW_SET_MAX];
1030     CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
1031     /* QEMU */
1032     int error_code;
1033 #define EXCP_TLB_NOMATCH   0x1
1034 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
1035     uint32_t hflags;    /* CPU State */
1036     /* TMASK defines different execution modes */
1037 #define MIPS_HFLAG_TMASK  0x1F5807FF
1038 #define MIPS_HFLAG_MODE   0x00007 /* execution modes                    */
1039     /*
1040      * The KSU flags must be the lowest bits in hflags. The flag order
1041      * must be the same as defined for CP0 Status. This allows to use
1042      * the bits as the value of mmu_idx.
1043      */
1044 #define MIPS_HFLAG_KSU    0x00003 /* kernel/supervisor/user mode mask   */
1045 #define MIPS_HFLAG_UM     0x00002 /* user mode flag                     */
1046 #define MIPS_HFLAG_SM     0x00001 /* supervisor mode flag               */
1047 #define MIPS_HFLAG_KM     0x00000 /* kernel mode flag                   */
1048 #define MIPS_HFLAG_DM     0x00004 /* Debug mode                         */
1049 #define MIPS_HFLAG_64     0x00008 /* 64-bit instructions enabled        */
1050 #define MIPS_HFLAG_CP0    0x00010 /* CP0 enabled                        */
1051 #define MIPS_HFLAG_FPU    0x00020 /* FPU enabled                        */
1052 #define MIPS_HFLAG_F64    0x00040 /* 64-bit FPU enabled                 */
1053     /*
1054      * True if the MIPS IV COP1X instructions can be used.  This also
1055      * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
1056      * and RSQRT.D.
1057      */
1058 #define MIPS_HFLAG_COP1X  0x00080 /* COP1X instructions enabled         */
1059 #define MIPS_HFLAG_RE     0x00100 /* Reversed endianness                */
1060 #define MIPS_HFLAG_AWRAP  0x00200 /* 32-bit compatibility address wrapping */
1061 #define MIPS_HFLAG_M16    0x00400 /* MIPS16 mode flag                   */
1062 #define MIPS_HFLAG_M16_SHIFT 10
1063     /*
1064      * If translation is interrupted between the branch instruction and
1065      * the delay slot, record what type of branch it is so that we can
1066      * resume translation properly.  It might be possible to reduce
1067      * this from three bits to two.
1068      */
1069 #define MIPS_HFLAG_BMASK_BASE  0x803800
1070 #define MIPS_HFLAG_B      0x00800 /* Unconditional branch               */
1071 #define MIPS_HFLAG_BC     0x01000 /* Conditional branch                 */
1072 #define MIPS_HFLAG_BL     0x01800 /* Likely branch                      */
1073 #define MIPS_HFLAG_BR     0x02000 /* branch to register (can't link TB) */
1074     /* Extra flags about the current pending branch.  */
1075 #define MIPS_HFLAG_BMASK_EXT 0x7C000
1076 #define MIPS_HFLAG_B16    0x04000 /* branch instruction was 16 bits     */
1077 #define MIPS_HFLAG_BDS16  0x08000 /* branch requires 16-bit delay slot  */
1078 #define MIPS_HFLAG_BDS32  0x10000 /* branch requires 32-bit delay slot  */
1079 #define MIPS_HFLAG_BDS_STRICT  0x20000 /* Strict delay slot size */
1080 #define MIPS_HFLAG_BX     0x40000 /* branch exchanges execution mode    */
1081 #define MIPS_HFLAG_BMASK  (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
1082     /* MIPS DSP resources access. */
1083 #define MIPS_HFLAG_DSP    0x080000   /* Enable access to DSP resources.    */
1084 #define MIPS_HFLAG_DSP_R2 0x100000   /* Enable access to DSP R2 resources. */
1085 #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */
1086     /* Extra flag about HWREna register. */
1087 #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */
1088 #define MIPS_HFLAG_SBRI  0x400000 /* R6 SDBBP causes RI excpt. in user mode */
1089 #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot                   */
1090 #define MIPS_HFLAG_MSA   0x1000000
1091 #define MIPS_HFLAG_FRE   0x2000000 /* FRE enabled */
1092 #define MIPS_HFLAG_ELPA  0x4000000
1093 #define MIPS_HFLAG_ITC_CACHE  0x8000000 /* CACHE instr. operates on ITC tag */
1094 #define MIPS_HFLAG_ERL   0x10000000 /* error level flag */
1095     target_ulong btarget;        /* Jump / branch target               */
1096     target_ulong bcond;          /* Branch condition (if needed)       */
1097 
1098     int SYNCI_Step; /* Address step size for SYNCI */
1099     int CCRes; /* Cycle count resolution/divisor */
1100     uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
1101     uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
1102     uint64_t insn_flags; /* Supported instruction set */
1103     int saarp;
1104 
1105     /* Fields up to this point are cleared by a CPU reset */
1106     struct {} end_reset_fields;
1107 
1108     /* Fields from here on are preserved across CPU reset. */
1109     CPUMIPSMVPContext *mvp;
1110 #if !defined(CONFIG_USER_ONLY)
1111     CPUMIPSTLBContext *tlb;
1112 #endif
1113 
1114     const mips_def_t *cpu_model;
1115     void *irq[8];
1116     QEMUTimer *timer; /* Internal timer */
1117     struct MIPSITUState *itu;
1118     MemoryRegion *itc_tag; /* ITC Configuration Tags */
1119     target_ulong exception_base; /* ExceptionBase input to the core */
1120 };
1121 
1122 /**
1123  * MIPSCPU:
1124  * @env: #CPUMIPSState
1125  *
1126  * A MIPS CPU.
1127  */
1128 struct MIPSCPU {
1129     /*< private >*/
1130     CPUState parent_obj;
1131     /*< public >*/
1132 
1133     CPUNegativeOffsetState neg;
1134     CPUMIPSState env;
1135 };
1136 
1137 
1138 void mips_cpu_list(void);
1139 
1140 #define cpu_signal_handler cpu_mips_signal_handler
1141 #define cpu_list mips_cpu_list
1142 
1143 extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
1144 extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
1145 
1146 /*
1147  * MMU modes definitions. We carefully match the indices with our
1148  * hflags layout.
1149  */
1150 #define MMU_MODE0_SUFFIX _kernel
1151 #define MMU_MODE1_SUFFIX _super
1152 #define MMU_MODE2_SUFFIX _user
1153 #define MMU_MODE3_SUFFIX _error
1154 #define MMU_USER_IDX 2
1155 
1156 static inline int hflags_mmu_index(uint32_t hflags)
1157 {
1158     if (hflags & MIPS_HFLAG_ERL) {
1159         return 3; /* ERL */
1160     } else {
1161         return hflags & MIPS_HFLAG_KSU;
1162     }
1163 }
1164 
1165 static inline int cpu_mmu_index(CPUMIPSState *env, bool ifetch)
1166 {
1167     return hflags_mmu_index(env->hflags);
1168 }
1169 
1170 typedef CPUMIPSState CPUArchState;
1171 typedef MIPSCPU ArchCPU;
1172 
1173 #include "exec/cpu-all.h"
1174 
1175 /*
1176  * Memory access type :
1177  * may be needed for precise access rights control and precise exceptions.
1178  */
1179 enum {
1180     /* 1 bit to define user level / supervisor access */
1181     ACCESS_USER  = 0x00,
1182     ACCESS_SUPER = 0x01,
1183     /* 1 bit to indicate direction */
1184     ACCESS_STORE = 0x02,
1185     /* Type of instruction that generated the access */
1186     ACCESS_CODE  = 0x10, /* Code fetch access                */
1187     ACCESS_INT   = 0x20, /* Integer load/store access        */
1188     ACCESS_FLOAT = 0x30, /* floating point load/store access */
1189 };
1190 
1191 /* Exceptions */
1192 enum {
1193     EXCP_NONE          = -1,
1194     EXCP_RESET         = 0,
1195     EXCP_SRESET,
1196     EXCP_DSS,
1197     EXCP_DINT,
1198     EXCP_DDBL,
1199     EXCP_DDBS,
1200     EXCP_NMI,
1201     EXCP_MCHECK,
1202     EXCP_EXT_INTERRUPT, /* 8 */
1203     EXCP_DFWATCH,
1204     EXCP_DIB,
1205     EXCP_IWATCH,
1206     EXCP_AdEL,
1207     EXCP_AdES,
1208     EXCP_TLBF,
1209     EXCP_IBE,
1210     EXCP_DBp, /* 16 */
1211     EXCP_SYSCALL,
1212     EXCP_BREAK,
1213     EXCP_CpU,
1214     EXCP_RI,
1215     EXCP_OVERFLOW,
1216     EXCP_TRAP,
1217     EXCP_FPE,
1218     EXCP_DWATCH, /* 24 */
1219     EXCP_LTLBL,
1220     EXCP_TLBL,
1221     EXCP_TLBS,
1222     EXCP_DBE,
1223     EXCP_THREAD,
1224     EXCP_MDMX,
1225     EXCP_C2E,
1226     EXCP_CACHE, /* 32 */
1227     EXCP_DSPDIS,
1228     EXCP_MSADIS,
1229     EXCP_MSAFPE,
1230     EXCP_TLBXI,
1231     EXCP_TLBRI,
1232 
1233     EXCP_LAST = EXCP_TLBRI,
1234 };
1235 
1236 /*
1237  * This is an internally generated WAKE request line.
1238  * It is driven by the CPU itself. Raised when the MT
1239  * block wants to wake a VPE from an inactive state and
1240  * cleared when VPE goes from active to inactive.
1241  */
1242 #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
1243 
1244 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
1245 
1246 #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU
1247 #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX
1248 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
1249 
1250 bool cpu_supports_cps_smp(const char *cpu_type);
1251 bool cpu_supports_isa(const char *cpu_type, uint64_t isa);
1252 void cpu_set_exception_base(int vp_index, target_ulong address);
1253 
1254 /* mips_int.c */
1255 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level);
1256 
1257 /* mips_itu.c */
1258 void itc_reconfigure(struct MIPSITUState *tag);
1259 
1260 /* helper.c */
1261 target_ulong exception_resume_pc(CPUMIPSState *env);
1262 
1263 static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
1264                                         target_ulong *cs_base, uint32_t *flags)
1265 {
1266     *pc = env->active_tc.PC;
1267     *cs_base = 0;
1268     *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK |
1269                             MIPS_HFLAG_HWRENA_ULR);
1270 }
1271 
1272 #endif /* MIPS_CPU_H */
1273