summaryrefslogtreecommitdiff
path: root/target-sparc/cpu.h
blob: 5fb0ed1aad068b603cd91018391283ff363de1e4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
#ifndef SPARC_CPU_H
#define SPARC_CPU_H

#include "qemu-common.h"
#include "qemu/bswap.h"
#include "cpu-qom.h"

#define ALIGNED_ONLY

#if !defined(TARGET_SPARC64)
#define TARGET_LONG_BITS 32
#define TARGET_DPREGS 16
#define TARGET_PAGE_BITS 12 /* 4k */
#define TARGET_PHYS_ADDR_SPACE_BITS 36
#define TARGET_VIRT_ADDR_SPACE_BITS 32
#else
#define TARGET_LONG_BITS 64
#define TARGET_DPREGS 32
#define TARGET_PAGE_BITS 13 /* 8k */
#define TARGET_PHYS_ADDR_SPACE_BITS 41
# ifdef TARGET_ABI32
#  define TARGET_VIRT_ADDR_SPACE_BITS 32
# else
#  define TARGET_VIRT_ADDR_SPACE_BITS 44
# endif
#endif

#define CPUArchState struct CPUSPARCState

#include "exec/cpu-defs.h"

#include "fpu/softfloat.h"

/*#define EXCP_INTERRUPT 0x100*/

/* trap definitions */
#ifndef TARGET_SPARC64
#define TT_TFAULT   0x01
#define TT_ILL_INSN 0x02
#define TT_PRIV_INSN 0x03
#define TT_NFPU_INSN 0x04
#define TT_WIN_OVF  0x05
#define TT_WIN_UNF  0x06
#define TT_UNALIGNED 0x07
#define TT_FP_EXCP  0x08
#define TT_DFAULT   0x09
#define TT_TOVF     0x0a
#define TT_EXTINT   0x10
#define TT_CODE_ACCESS 0x21
#define TT_UNIMP_FLUSH 0x25
#define TT_DATA_ACCESS 0x29
#define TT_DIV_ZERO 0x2a
#define TT_NCP_INSN 0x24
#define TT_TRAP     0x80
#else
#define TT_POWER_ON_RESET 0x01
#define TT_TFAULT   0x08
#define TT_CODE_ACCESS 0x0a
#define TT_ILL_INSN 0x10
#define TT_UNIMP_FLUSH TT_ILL_INSN
#define TT_PRIV_INSN 0x11
#define TT_NFPU_INSN 0x20
#define TT_FP_EXCP  0x21
#define TT_TOVF     0x23
#define TT_CLRWIN   0x24
#define TT_DIV_ZERO 0x28
#define TT_DFAULT   0x30
#define TT_DATA_ACCESS 0x32
#define TT_UNALIGNED 0x34
#define TT_PRIV_ACT 0x37
#define TT_EXTINT   0x40
#define TT_IVEC     0x60
#define TT_TMISS    0x64
#define TT_DMISS    0x68
#define TT_DPROT    0x6c
#define TT_SPILL    0x80
#define TT_FILL     0xc0
#define TT_WOTHER   (1 << 5)
#define TT_TRAP     0x100
#endif

#define PSR_NEG_SHIFT 23
#define PSR_NEG   (1 << PSR_NEG_SHIFT)
#define PSR_ZERO_SHIFT 22
#define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
#define PSR_OVF_SHIFT 21
#define PSR_OVF   (1 << PSR_OVF_SHIFT)
#define PSR_CARRY_SHIFT 20
#define PSR_CARRY (1 << PSR_CARRY_SHIFT)
#define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
#if !defined(TARGET_SPARC64)
#define PSR_EF    (1<<12)
#define PSR_PIL   0xf00
#define PSR_S     (1<<7)
#define PSR_PS    (1<<6)
#define PSR_ET    (1<<5)
#define PSR_CWP   0x1f
#endif

#define CC_SRC (env->cc_src)
#define CC_SRC2 (env->cc_src2)
#define CC_DST (env->cc_dst)
#define CC_OP  (env->cc_op)

/* Even though lazy evaluation of CPU condition codes tends to be less
 * important on RISC systems where condition codes are only updated
 * when explicitly requested, SPARC uses it to update 32-bit and 64-bit
 * condition codes.
 */
enum {
    CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
    CC_OP_FLAGS,   /* all cc are back in status register */
    CC_OP_DIV,     /* modify N, Z and V, C = 0*/
    CC_OP_ADD,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_ADDX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_TADD,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_TADDTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
    CC_OP_SUB,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_SUBX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_TSUB,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
    CC_OP_TSUBTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
    CC_OP_LOGIC,   /* modify N and Z, C = V = 0, CC_DST = res */
    CC_OP_NB,
};

/* Trap base register */
#define TBR_BASE_MASK 0xfffff000

#if defined(TARGET_SPARC64)
#define PS_TCT   (1<<12) /* UA2007, impl.dep. trap on control transfer */
#define PS_IG    (1<<11) /* v9, zero on UA2007 */
#define PS_MG    (1<<10) /* v9, zero on UA2007 */
#define PS_CLE   (1<<9) /* UA2007 */
#define PS_TLE   (1<<8) /* UA2007 */
#define PS_RMO   (1<<7)
#define PS_RED   (1<<5) /* v9, zero on UA2007 */
#define PS_PEF   (1<<4) /* enable fpu */
#define PS_AM    (1<<3) /* address mask */
#define PS_PRIV  (1<<2)
#define PS_IE    (1<<1)
#define PS_AG    (1<<0) /* v9, zero on UA2007 */

#define FPRS_FEF (1<<2)

#define HS_PRIV  (1<<2)
#endif

/* Fcc */
#define FSR_RD1        (1ULL << 31)
#define FSR_RD0        (1ULL << 30)
#define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
#define FSR_RD_NEAREST 0
#define FSR_RD_ZERO    FSR_RD0
#define FSR_RD_POS     FSR_RD1
#define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)

#define FSR_NVM   (1ULL << 27)
#define FSR_OFM   (1ULL << 26)
#define FSR_UFM   (1ULL << 25)
#define FSR_DZM   (1ULL << 24)
#define FSR_NXM   (1ULL << 23)
#define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)

#define FSR_NVA   (1ULL << 9)
#define FSR_OFA   (1ULL << 8)
#define FSR_UFA   (1ULL << 7)
#define FSR_DZA   (1ULL << 6)
#define FSR_NXA   (1ULL << 5)
#define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)

#define FSR_NVC   (1ULL << 4)
#define FSR_OFC   (1ULL << 3)
#define FSR_UFC   (1ULL << 2)
#define FSR_DZC   (1ULL << 1)
#define FSR_NXC   (1ULL << 0)
#define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)

#define FSR_FTT2   (1ULL << 16)
#define FSR_FTT1   (1ULL << 15)
#define FSR_FTT0   (1ULL << 14)
//gcc warns about constant overflow for ~FSR_FTT_MASK
//#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
#ifdef TARGET_SPARC64
#define FSR_FTT_NMASK      0xfffffffffffe3fffULL
#define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
#define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
#define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
#define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
#else
#define FSR_FTT_NMASK      0xfffe3fffULL
#define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
#define FSR_LDFSR_OLDMASK  0x000fc000ULL
#endif
#define FSR_LDFSR_MASK     0xcfc00fffULL
#define FSR_FTT_IEEE_EXCP (1ULL << 14)
#define FSR_FTT_UNIMPFPOP (3ULL << 14)
#define FSR_FTT_SEQ_ERROR (4ULL << 14)
#define FSR_FTT_INVAL_FPR (6ULL << 14)

#define FSR_FCC1_SHIFT 11
#define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
#define FSR_FCC0_SHIFT 10
#define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)

/* MMU */
#define MMU_E     (1<<0)
#define MMU_NF    (1<<1)

#define PTE_ENTRYTYPE_MASK 3
#define PTE_ACCESS_MASK    0x1c
#define PTE_ACCESS_SHIFT   2
#define PTE_PPN_SHIFT      7
#define PTE_ADDR_MASK      0xffffff00

#define PG_ACCESSED_BIT 5
#define PG_MODIFIED_BIT 6
#define PG_CACHE_BIT    7

#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
#define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
#define PG_CACHE_MASK    (1 << PG_CACHE_BIT)

/* 3 <= NWINDOWS <= 32. */
#define MIN_NWINDOWS 3
#define MAX_NWINDOWS 32

#if !defined(TARGET_SPARC64)
#define NB_MMU_MODES 3
#else
#define NB_MMU_MODES 7
typedef struct trap_state {
    uint64_t tpc;
    uint64_t tnpc;
    uint64_t tstate;
    uint32_t tt;
} trap_state;
#endif
#define TARGET_INSN_START_EXTRA_WORDS 1

typedef struct sparc_def_t {
    const char *name;
    target_ulong iu_version;
    uint32_t fpu_version;
    uint32_t mmu_version;
    uint32_t mmu_bm;
    uint32_t mmu_ctpr_mask;
    uint32_t mmu_cxr_mask;
    uint32_t mmu_sfsr_mask;
    uint32_t mmu_trcr_mask;
    uint32_t mxcc_version;
    uint32_t features;
    uint32_t nwindows;
    uint32_t maxtl;
} sparc_def_t;

#define CPU_FEATURE_FLOAT        (1 << 0)
#define CPU_FEATURE_FLOAT128     (1 << 1)
#define CPU_FEATURE_SWAP         (1 << 2)
#define CPU_FEATURE_MUL          (1 << 3)
#define CPU_FEATURE_DIV          (1 << 4)
#define CPU_FEATURE_FLUSH        (1 << 5)
#define CPU_FEATURE_FSQRT        (1 << 6)
#define CPU_FEATURE_FMUL         (1 << 7)
#define CPU_FEATURE_VIS1         (1 << 8)
#define CPU_FEATURE_VIS2         (1 << 9)
#define CPU_FEATURE_FSMULD       (1 << 10)
#define CPU_FEATURE_HYPV         (1 << 11)
#define CPU_FEATURE_CMT          (1 << 12)
#define CPU_FEATURE_GL           (1 << 13)
#define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
#define CPU_FEATURE_ASR17        (1 << 15)
#define CPU_FEATURE_CACHE_CTRL   (1 << 16)
#define CPU_FEATURE_POWERDOWN    (1 << 17)
#define CPU_FEATURE_CASA         (1 << 18)

#ifndef TARGET_SPARC64
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
                              CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
                              CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
                              CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
#else
#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
                              CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
                              CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
                              CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
                              CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
                              CPU_FEATURE_CASA)
enum {
    mmu_us_12, // Ultrasparc < III (64 entry TLB)
    mmu_us_3,  // Ultrasparc III (512 entry TLB)
    mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
    mmu_sun4v, // T1, T2
};
#endif

#define TTE_VALID_BIT       (1ULL << 63)
#define TTE_NFO_BIT         (1ULL << 60)
#define TTE_USED_BIT        (1ULL << 41)
#define TTE_LOCKED_BIT      (1ULL <<  6)
#define TTE_SIDEEFFECT_BIT  (1ULL <<  3)
#define TTE_PRIV_BIT        (1ULL <<  2)
#define TTE_W_OK_BIT        (1ULL <<  1)
#define TTE_GLOBAL_BIT      (1ULL <<  0)

#define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
#define TTE_IS_NFO(tte)     ((tte) & TTE_NFO_BIT)
#define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
#define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
#define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT)
#define TTE_IS_PRIV(tte)    ((tte) & TTE_PRIV_BIT)
#define TTE_IS_W_OK(tte)    ((tte) & TTE_W_OK_BIT)
#define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)

#define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
#define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)

#define TTE_PGSIZE(tte)     (((tte) >> 61) & 3ULL)
#define TTE_PA(tte)         ((tte) & 0x1ffffffe000ULL)

#define SFSR_NF_BIT         (1ULL << 24)   /* JPS1 NoFault */
#define SFSR_TM_BIT         (1ULL << 15)   /* JPS1 TLB Miss */
#define SFSR_FT_VA_IMMU_BIT (1ULL << 13)   /* USIIi VA out of range (IMMU) */
#define SFSR_FT_VA_DMMU_BIT (1ULL << 12)   /* USIIi VA out of range (DMMU) */
#define SFSR_FT_NFO_BIT     (1ULL << 11)   /* NFO page access */
#define SFSR_FT_ILL_BIT     (1ULL << 10)   /* illegal LDA/STA ASI */
#define SFSR_FT_ATOMIC_BIT  (1ULL <<  9)   /* atomic op on noncacheable area */
#define SFSR_FT_NF_E_BIT    (1ULL <<  8)   /* NF access on side effect area */
#define SFSR_FT_PRIV_BIT    (1ULL <<  7)   /* privilege violation */
#define SFSR_PR_BIT         (1ULL <<  3)   /* privilege mode */
#define SFSR_WRITE_BIT      (1ULL <<  2)   /* write access mode */
#define SFSR_OW_BIT         (1ULL <<  1)   /* status overwritten */
#define SFSR_VALID_BIT      (1ULL <<  0)   /* status valid */

#define SFSR_ASI_SHIFT      16             /* 23:16 ASI value */
#define SFSR_ASI_MASK       (0xffULL << SFSR_ASI_SHIFT)
#define SFSR_CT_PRIMARY     (0ULL <<  4)   /* 5:4 context type */
#define SFSR_CT_SECONDARY   (1ULL <<  4)
#define SFSR_CT_NUCLEUS     (2ULL <<  4)
#define SFSR_CT_NOTRANS     (3ULL <<  4)
#define SFSR_CT_MASK        (3ULL <<  4)

/* Leon3 cache control */

/* Cache control: emulate the behavior of cache control registers but without
   any effect on the emulated */

#define CACHE_STATE_MASK 0x3
#define CACHE_DISABLED   0x0
#define CACHE_FROZEN     0x1
#define CACHE_ENABLED    0x3

/* Cache Control register fields */

#define CACHE_CTRL_IF (1 <<  4)  /* Instruction Cache Freeze on Interrupt */
#define CACHE_CTRL_DF (1 <<  5)  /* Data Cache Freeze on Interrupt */
#define CACHE_CTRL_DP (1 << 14)  /* Data cache flush pending */
#define CACHE_CTRL_IP (1 << 15)  /* Instruction cache flush pending */
#define CACHE_CTRL_IB (1 << 16)  /* Instruction burst fetch */
#define CACHE_CTRL_FI (1 << 21)  /* Flush Instruction cache (Write only) */
#define CACHE_CTRL_FD (1 << 22)  /* Flush Data cache (Write only) */
#define CACHE_CTRL_DS (1 << 23)  /* Data cache snoop enable */

typedef struct SparcTLBEntry {
    uint64_t tag;
    uint64_t tte;
} SparcTLBEntry;

struct CPUTimer
{
    const char *name;
    uint32_t    frequency;
    uint32_t    disabled;
    uint64_t    disabled_mask;
    uint32_t    npt;
    uint64_t    npt_mask;
    int64_t     clock_offset;
    QEMUTimer  *qtimer;
};

typedef struct CPUTimer CPUTimer;

typedef struct CPUSPARCState CPUSPARCState;

struct CPUSPARCState {
    target_ulong gregs[8]; /* general registers */
    target_ulong *regwptr; /* pointer to current register window */
    target_ulong pc;       /* program counter */
    target_ulong npc;      /* next program counter */
    target_ulong y;        /* multiply/divide register */

    /* emulator internal flags handling */
    target_ulong cc_src, cc_src2;
    target_ulong cc_dst;
    uint32_t cc_op;

    target_ulong cond; /* conditional branch result (XXX: save it in a
                          temporary register when possible) */

    uint32_t psr;      /* processor state register */
    target_ulong fsr;      /* FPU state register */
    CPU_DoubleU fpr[TARGET_DPREGS];  /* floating point registers */
    uint32_t cwp;      /* index of current register window (extracted
                          from PSR) */
#if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
    uint32_t wim;      /* window invalid mask */
#endif
    target_ulong tbr;  /* trap base register */
#if !defined(TARGET_SPARC64)
    int      psrs;     /* supervisor mode (extracted from PSR) */
    int      psrps;    /* previous supervisor mode */
    int      psret;    /* enable traps */
#endif
    uint32_t psrpil;   /* interrupt blocking level */
    uint32_t pil_in;   /* incoming interrupt level bitmap */
#if !defined(TARGET_SPARC64)
    int      psref;    /* enable fpu */
#endif
    int interrupt_index;
    /* NOTE: we allow 8 more registers to handle wrapping */
    target_ulong regbase[MAX_NWINDOWS * 16 + 8];

    CPU_COMMON

    /* Fields from here on are preserved across CPU reset. */
    target_ulong version;
    uint32_t nwindows;

    /* MMU regs */
#if defined(TARGET_SPARC64)
    uint64_t lsu;
#define DMMU_E 0x8
#define IMMU_E 0x4
    //typedef struct SparcMMU
    union {
        uint64_t immuregs[16];
        struct {
            uint64_t tsb_tag_target;
            uint64_t unused_mmu_primary_context;   // use DMMU
            uint64_t unused_mmu_secondary_context; // use DMMU
            uint64_t sfsr;
            uint64_t sfar;
            uint64_t tsb;
            uint64_t tag_access;
        } immu;
    };
    union {
        uint64_t dmmuregs[16];
        struct {
            uint64_t tsb_tag_target;
            uint64_t mmu_primary_context;
            uint64_t mmu_secondary_context;
            uint64_t sfsr;
            uint64_t sfar;
            uint64_t tsb;
            uint64_t tag_access;
        } dmmu;
    };
    SparcTLBEntry itlb[64];
    SparcTLBEntry dtlb[64];
    uint32_t mmu_version;
#else
    uint32_t mmuregs[32];
    uint64_t mxccdata[4];
    uint64_t mxccregs[8];
    uint32_t mmubpctrv, mmubpctrc, mmubpctrs;
    uint64_t mmubpaction;
    uint64_t mmubpregs[4];
    uint64_t prom_addr;
#endif
    /* temporary float registers */
    float128 qt0, qt1;
    float_status fp_status;
#if defined(TARGET_SPARC64)
#define MAXTL_MAX 8
#define MAXTL_MASK (MAXTL_MAX - 1)
    trap_state ts[MAXTL_MAX];
    uint32_t xcc;               /* Extended integer condition codes */
    uint32_t asi;
    uint32_t pstate;
    uint32_t tl;
    uint32_t maxtl;
    uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
    uint64_t agregs[8]; /* alternate general registers */
    uint64_t bgregs[8]; /* backup for normal global registers */
    uint64_t igregs[8]; /* interrupt general registers */
    uint64_t mgregs[8]; /* mmu general registers */
    uint64_t fprs;
    uint64_t tick_cmpr, stick_cmpr;
    CPUTimer *tick, *stick;
#define TICK_NPT_MASK        0x8000000000000000ULL
#define TICK_INT_DIS         0x8000000000000000ULL
    uint64_t gsr;
    uint32_t gl; // UA2005
    /* UA 2005 hyperprivileged registers */
    uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
    CPUTimer *hstick; // UA 2005
    /* Interrupt vector registers */
    uint64_t ivec_status;
    uint64_t ivec_data[3];
    uint32_t softint;
#define SOFTINT_TIMER   1
#define SOFTINT_STIMER  (1 << 16)
#define SOFTINT_INTRMASK (0xFFFE)
#define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
#endif
    sparc_def_t *def;

    void *irq_manager;
    void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno);

    /* Leon3 cache control */
    uint32_t cache_control;
};

/**
 * SPARCCPU:
 * @env: #CPUSPARCState
 *
 * A SPARC CPU.
 */
struct SPARCCPU {
    /*< private >*/
    CPUState parent_obj;
    /*< public >*/

    CPUSPARCState env;
};

static inline SPARCCPU *sparc_env_get_cpu(CPUSPARCState *env)
{
    return container_of(env, SPARCCPU, env);
}

#define ENV_GET_CPU(e) CPU(sparc_env_get_cpu(e))

#define ENV_OFFSET offsetof(SPARCCPU, env)

#ifndef CONFIG_USER_ONLY
extern const struct VMStateDescription vmstate_sparc_cpu;
#endif

void sparc_cpu_do_interrupt(CPUState *cpu);
void sparc_cpu_dump_state(CPUState *cpu, FILE *f,
                          fprintf_function cpu_fprintf, int flags);
hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
int sparc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
                                                 MMUAccessType access_type,
                                                 int mmu_idx,
                                                 uintptr_t retaddr);
void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN;

#ifndef NO_CPU_IO_DEFS
/* cpu_init.c */
SPARCCPU *cpu_sparc_init(const char *cpu_model);
void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf);
/* mmu_helper.c */
int sparc_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
                               int mmu_idx);
target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUSPARCState *env);

#if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr,
                              uint8_t *buf, int len, bool is_write);
#endif


/* translate.c */
void gen_intermediate_code_init(CPUSPARCState *env);

/* cpu-exec.c */

/* win_helper.c */
target_ulong cpu_get_psr(CPUSPARCState *env1);
void cpu_put_psr(CPUSPARCState *env1, target_ulong val);
void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val);
#ifdef TARGET_SPARC64
target_ulong cpu_get_ccr(CPUSPARCState *env1);
void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
target_ulong cpu_get_cwp64(CPUSPARCState *env1);
void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate);
#endif
int cpu_cwp_inc(CPUSPARCState *env1, int cwp);
int cpu_cwp_dec(CPUSPARCState *env1, int cwp);
void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);

/* int_helper.c */
void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno);

/* sun4m.c, sun4u.c */
void cpu_check_irqs(CPUSPARCState *env);

/* leon3.c */
void leon3_irq_ack(void *irq_manager, int intno);

#if defined (TARGET_SPARC64)

static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
{
    return (x & mask) == (y & mask);
}

#define MMU_CONTEXT_BITS 13
#define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)

static inline int tlb_compare_context(const SparcTLBEntry *tlb,
                                      uint64_t context)
{
    return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
}

#endif
#endif

/* cpu-exec.c */
#if !defined(CONFIG_USER_ONLY)
void sparc_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
                                 bool is_write, bool is_exec, int is_asi,
                                 unsigned size);
#if defined(TARGET_SPARC64)
hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr,
                                           int mmu_idx);
#endif
#endif
int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);

#ifndef NO_CPU_IO_DEFS
#define cpu_init(cpu_model) CPU(cpu_sparc_init(cpu_model))
#endif

#define cpu_signal_handler cpu_sparc_signal_handler
#define cpu_list sparc_cpu_list

/* MMU modes definitions */
#if defined (TARGET_SPARC64)
#define MMU_USER_IDX   0
#define MMU_USER_SECONDARY_IDX   1
#define MMU_KERNEL_IDX 2
#define MMU_KERNEL_SECONDARY_IDX 3
#define MMU_NUCLEUS_IDX 4
#define MMU_HYPV_IDX   5
#define MMU_PHYS_IDX   6
#else
#define MMU_USER_IDX   0
#define MMU_KERNEL_IDX 1
#define MMU_PHYS_IDX   2
#endif

#if defined (TARGET_SPARC64)
static inline int cpu_has_hypervisor(CPUSPARCState *env1)
{
    return env1->def->features & CPU_FEATURE_HYPV;
}

static inline int cpu_hypervisor_mode(CPUSPARCState *env1)
{
    return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
}

static inline int cpu_supervisor_mode(CPUSPARCState *env1)
{
    return env1->pstate & PS_PRIV;
}
#endif

static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
{
#if defined(CONFIG_USER_ONLY)
    return MMU_USER_IDX;
#elif !defined(TARGET_SPARC64)
    if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
        return MMU_PHYS_IDX;
    } else {
        return env->psrs;
    }
#else
    /* IMMU or DMMU disabled.  */
    if (ifetch
        ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0
        : (env->lsu & DMMU_E) == 0) {
        return MMU_PHYS_IDX;
    } else if (env->tl > 0) {
        return MMU_NUCLEUS_IDX;
    } else if (cpu_hypervisor_mode(env)) {
        return MMU_HYPV_IDX;
    } else if (cpu_supervisor_mode(env)) {
        return MMU_KERNEL_IDX;
    } else {
        return MMU_USER_IDX;
    }
#endif
}

static inline int cpu_interrupts_enabled(CPUSPARCState *env1)
{
#if !defined (TARGET_SPARC64)
    if (env1->psret != 0)
        return 1;
#else
    if (env1->pstate & PS_IE)
        return 1;
#endif

    return 0;
}

static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil)
{
#if !defined(TARGET_SPARC64)
    /* level 15 is non-maskable on sparc v8 */
    return pil == 15 || pil > env1->psrpil;
#else
    return pil > env1->psrpil;
#endif
}

#include "exec/cpu-all.h"

#ifdef TARGET_SPARC64
/* sun4u.c */
void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
uint64_t cpu_tick_get_count(CPUTimer *timer);
void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
trap_state* cpu_tsptr(CPUSPARCState* env);
#endif

#define TB_FLAG_MMU_MASK     7
#define TB_FLAG_FPU_ENABLED  (1 << 4)
#define TB_FLAG_AM_ENABLED   (1 << 5)
#define TB_FLAG_ASI_SHIFT    24

static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
                                        target_ulong *cs_base, uint32_t *pflags)
{
    uint32_t flags;
    *pc = env->pc;
    *cs_base = env->npc;
    flags = cpu_mmu_index(env, false);
#ifdef TARGET_SPARC64
    if (env->pstate & PS_AM) {
        flags |= TB_FLAG_AM_ENABLED;
    }
    if ((env->def->features & CPU_FEATURE_FLOAT)
        && (env->pstate & PS_PEF)
        && (env->fprs & FPRS_FEF)) {
        flags |= TB_FLAG_FPU_ENABLED;
    }
    flags |= env->asi << TB_FLAG_ASI_SHIFT;
#else
    if ((env->def->features & CPU_FEATURE_FLOAT) && env->psref) {
        flags |= TB_FLAG_FPU_ENABLED;
    }
#endif
    *pflags = flags;
}

static inline bool tb_fpu_enabled(int tb_flags)
{
#if defined(CONFIG_USER_ONLY)
    return true;
#else
    return tb_flags & TB_FLAG_FPU_ENABLED;
#endif
}

static inline bool tb_am_enabled(int tb_flags)
{
#ifndef TARGET_SPARC64
    return false;
#else
    return tb_flags & TB_FLAG_AM_ENABLED;
#endif
}

#endif