target-sparc/cpu.h

   1 #ifndef CPU_SPARC_H
   2 #define CPU_SPARC_H
   3
   4 #include "config.h"
   5 #include "qemu-common.h"
   6
   7 #if !defined(TARGET_SPARC64)
   8 #define TARGET_LONG_BITS 32
   9 #define TARGET_FPREGS 32
  10 #define TARGET_PAGE_BITS 12 /* 4k */
  11 #define TARGET_PHYS_ADDR_SPACE_BITS 36
  12 #define TARGET_VIRT_ADDR_SPACE_BITS 32
  13 #else
  14 #define TARGET_LONG_BITS 64
  15 #define TARGET_FPREGS 64
  16 #define TARGET_PAGE_BITS 13 /* 8k */
  17 #define TARGET_PHYS_ADDR_SPACE_BITS 41
  18 # ifdef TARGET_ABI32
  19 #  define TARGET_VIRT_ADDR_SPACE_BITS 32
  20 # else
  21 #  define TARGET_VIRT_ADDR_SPACE_BITS 44
  22 # endif
  23 #endif
  24
  25 #define CPUState struct CPUSPARCState
  26
  27 #include "cpu-defs.h"
  28
  29 #include "softfloat.h"
  30
  31 #define TARGET_HAS_ICE 1
  32
  33 #if !defined(TARGET_SPARC64)
  34 #define ELF_MACHINE     EM_SPARC
  35 #else
  36 #define ELF_MACHINE     EM_SPARCV9
  37 #endif
  38
  39 /*#define EXCP_INTERRUPT 0x100*/
  40
  41 /* trap definitions */
  42 #ifndef TARGET_SPARC64
  43 #define TT_TFAULT   0x01
  44 #define TT_ILL_INSN 0x02
  45 #define TT_PRIV_INSN 0x03
  46 #define TT_NFPU_INSN 0x04
  47 #define TT_WIN_OVF  0x05
  48 #define TT_WIN_UNF  0x06
  49 #define TT_UNALIGNED 0x07
  50 #define TT_FP_EXCP  0x08
  51 #define TT_DFAULT   0x09
  52 #define TT_TOVF     0x0a
  53 #define TT_EXTINT   0x10
  54 #define TT_CODE_ACCESS 0x21
  55 #define TT_UNIMP_FLUSH 0x25
  56 #define TT_DATA_ACCESS 0x29
  57 #define TT_DIV_ZERO 0x2a
  58 #define TT_NCP_INSN 0x24
  59 #define TT_TRAP     0x80
  60 #else
  61 #define TT_POWER_ON_RESET 0x01
  62 #define TT_TFAULT   0x08
  63 #define TT_CODE_ACCESS 0x0a
  64 #define TT_ILL_INSN 0x10
  65 #define TT_UNIMP_FLUSH TT_ILL_INSN
  66 #define TT_PRIV_INSN 0x11
  67 #define TT_NFPU_INSN 0x20
  68 #define TT_FP_EXCP  0x21
  69 #define TT_TOVF     0x23
  70 #define TT_CLRWIN   0x24
  71 #define TT_DIV_ZERO 0x28
  72 #define TT_DFAULT   0x30
  73 #define TT_DATA_ACCESS 0x32
  74 #define TT_UNALIGNED 0x34
  75 #define TT_PRIV_ACT 0x37
  76 #define TT_EXTINT   0x40
  77 #define TT_IVEC     0x60
  78 #define TT_TMISS    0x64
  79 #define TT_DMISS    0x68
  80 #define TT_DPROT    0x6c
  81 #define TT_SPILL    0x80
  82 #define TT_FILL     0xc0
  83 #define TT_WOTHER   (1 << 5)
  84 #define TT_TRAP     0x100
  85 #endif
  86
  87 #define PSR_NEG_SHIFT 23
  88 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
  89 #define PSR_ZERO_SHIFT 22
  90 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
  91 #define PSR_OVF_SHIFT 21
  92 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
  93 #define PSR_CARRY_SHIFT 20
  94 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
  95 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
  96 #if !defined(TARGET_SPARC64)
  97 #define PSR_EF    (1<<12)
  98 #define PSR_PIL   0xf00
  99 #define PSR_S     (1<<7)
 100 #define PSR_PS    (1<<6)
 101 #define PSR_ET    (1<<5)
 102 #define PSR_CWP   0x1f
 103 #endif
 104
 105 #define CC_SRC (env->cc_src)
 106 #define CC_SRC2 (env->cc_src2)
 107 #define CC_DST (env->cc_dst)
 108 #define CC_OP  (env->cc_op)
 109
 110 enum {
 111     CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
 112     CC_OP_FLAGS,   /* all cc are back in status register */
 113     CC_OP_DIV,     /* modify N, Z and V, C = 0*/
 114     CC_OP_ADD,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 115     CC_OP_ADDX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 116     CC_OP_TADD,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 117     CC_OP_TADDTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 118     CC_OP_SUB,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 119     CC_OP_SUBX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 120     CC_OP_TSUB,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 121     CC_OP_TSUBTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 122     CC_OP_LOGIC,   /* modify N and Z, C = V = 0, CC_DST = res */
 123     CC_OP_NB,
 124 };
 125
 126 /* Trap base register */
 127 #define TBR_BASE_MASK 0xfffff000
 128
 129 #if defined(TARGET_SPARC64)
 130 #define PS_TCT   (1<<12) /* UA2007, impl.dep. trap on control transfer */
 131 #define PS_IG    (1<<11) /* v9, zero on UA2007 */
 132 #define PS_MG    (1<<10) /* v9, zero on UA2007 */
 133 #define PS_CLE   (1<<9) /* UA2007 */
 134 #define PS_TLE   (1<<8) /* UA2007 */
 135 #define PS_RMO   (1<<7)
 136 #define PS_RED   (1<<5) /* v9, zero on UA2007 */
 137 #define PS_PEF   (1<<4) /* enable fpu */
 138 #define PS_AM    (1<<3) /* address mask */
 139 #define PS_PRIV  (1<<2)
 140 #define PS_IE    (1<<1)
 141 #define PS_AG    (1<<0) /* v9, zero on UA2007 */
 142
 143 #define FPRS_FEF (1<<2)
 144
 145 #define HS_PRIV  (1<<2)
 146 #endif
 147
 148 /* Fcc */
 149 #define FSR_RD1        (1ULL << 31)
 150 #define FSR_RD0        (1ULL << 30)
 151 #define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
 152 #define FSR_RD_NEAREST 0
 153 #define FSR_RD_ZERO    FSR_RD0
 154 #define FSR_RD_POS     FSR_RD1
 155 #define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)
 156
 157 #define FSR_NVM   (1ULL << 27)
 158 #define FSR_OFM   (1ULL << 26)
 159 #define FSR_UFM   (1ULL << 25)
 160 #define FSR_DZM   (1ULL << 24)
 161 #define FSR_NXM   (1ULL << 23)
 162 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
 163
 164 #define FSR_NVA   (1ULL << 9)
 165 #define FSR_OFA   (1ULL << 8)
 166 #define FSR_UFA   (1ULL << 7)
 167 #define FSR_DZA   (1ULL << 6)
 168 #define FSR_NXA   (1ULL << 5)
 169 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
 170
 171 #define FSR_NVC   (1ULL << 4)
 172 #define FSR_OFC   (1ULL << 3)
 173 #define FSR_UFC   (1ULL << 2)
 174 #define FSR_DZC   (1ULL << 1)
 175 #define FSR_NXC   (1ULL << 0)
 176 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
 177
 178 #define FSR_FTT2   (1ULL << 16)
 179 #define FSR_FTT1   (1ULL << 15)
 180 #define FSR_FTT0   (1ULL << 14)
 181 //gcc warns about constant overflow for ~FSR_FTT_MASK
 182 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
 183 #ifdef TARGET_SPARC64
 184 #define FSR_FTT_NMASK      0xfffffffffffe3fffULL
 185 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
 186 #define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
 187 #define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
 188 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
 189 #else
 190 #define FSR_FTT_NMASK      0xfffe3fffULL
 191 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
 192 #define FSR_LDFSR_OLDMASK  0x000fc000ULL
 193 #endif
 194 #define FSR_LDFSR_MASK     0xcfc00fffULL
 195 #define FSR_FTT_IEEE_EXCP (1ULL << 14)
 196 #define FSR_FTT_UNIMPFPOP (3ULL << 14)
 197 #define FSR_FTT_SEQ_ERROR (4ULL << 14)
 198 #define FSR_FTT_INVAL_FPR (6ULL << 14)
 199
 200 #define FSR_FCC1_SHIFT 11
 201 #define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
 202 #define FSR_FCC0_SHIFT 10
 203 #define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)
 204
 205 /* MMU */
 206 #define MMU_E     (1<<0)
 207 #define MMU_NF    (1<<1)
 208
 209 #define PTE_ENTRYTYPE_MASK 3
 210 #define PTE_ACCESS_MASK    0x1c
 211 #define PTE_ACCESS_SHIFT   2
 212 #define PTE_PPN_SHIFT      7
 213 #define PTE_ADDR_MASK      0xffffff00
 214
 215 #define PG_ACCESSED_BIT 5
 216 #define PG_MODIFIED_BIT 6
 217 #define PG_CACHE_BIT    7
 218
 219 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
 220 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 221 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)
 222
 223 /* 3 <= NWINDOWS <= 32. */
 224 #define MIN_NWINDOWS 3
 225 #define MAX_NWINDOWS 32
 226
 227 #if !defined(TARGET_SPARC64)
 228 #define NB_MMU_MODES 2
 229 #else
 230 #define NB_MMU_MODES 6
 231 typedef struct trap_state {
 232     uint64_t tpc;
 233     uint64_t tnpc;
 234     uint64_t tstate;
 235     uint32_t tt;
 236 } trap_state;
 237 #endif
 238
 239 typedef struct sparc_def_t {
 240     const char *name;
 241     target_ulong iu_version;
 242     uint32_t fpu_version;
 243     uint32_t mmu_version;
 244     uint32_t mmu_bm;
 245     uint32_t mmu_ctpr_mask;
 246     uint32_t mmu_cxr_mask;
 247     uint32_t mmu_sfsr_mask;
 248     uint32_t mmu_trcr_mask;
 249     uint32_t mxcc_version;
 250     uint32_t features;
 251     uint32_t nwindows;
 252     uint32_t maxtl;
 253 } sparc_def_t;
 254
 255 #define CPU_FEATURE_FLOAT        (1 << 0)
 256 #define CPU_FEATURE_FLOAT128     (1 << 1)
 257 #define CPU_FEATURE_SWAP         (1 << 2)
 258 #define CPU_FEATURE_MUL          (1 << 3)
 259 #define CPU_FEATURE_DIV          (1 << 4)
 260 #define CPU_FEATURE_FLUSH        (1 << 5)
 261 #define CPU_FEATURE_FSQRT        (1 << 6)
 262 #define CPU_FEATURE_FMUL         (1 << 7)
 263 #define CPU_FEATURE_VIS1         (1 << 8)
 264 #define CPU_FEATURE_VIS2         (1 << 9)
 265 #define CPU_FEATURE_FSMULD       (1 << 10)
 266 #define CPU_FEATURE_HYPV         (1 << 11)
 267 #define CPU_FEATURE_CMT          (1 << 12)
 268 #define CPU_FEATURE_GL           (1 << 13)
 269 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
 270 #define CPU_FEATURE_ASR17        (1 << 15)
 271 #define CPU_FEATURE_CACHE_CTRL   (1 << 16)
 272
 273 #ifndef TARGET_SPARC64
 274 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 275                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 276                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 277                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 278 #else
 279 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 280                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 281                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 282                               CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
 283                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD)
 284 enum {
 285     mmu_us_12, // Ultrasparc < III (64 entry TLB)
 286     mmu_us_3,  // Ultrasparc III (512 entry TLB)
 287     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
 288     mmu_sun4v, // T1, T2
 289 };
 290 #endif
 291
 292 #define TTE_VALID_BIT       (1ULL << 63)
 293 #define TTE_USED_BIT        (1ULL << 41)
 294 #define TTE_LOCKED_BIT      (1ULL <<  6)
 295 #define TTE_GLOBAL_BIT      (1ULL <<  0)
 296
 297 #define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
 298 #define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
 299 #define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
 300 #define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)
 301
 302 #define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
 303 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)
 304
 305 typedef struct SparcTLBEntry {
 306     uint64_t tag;
 307     uint64_t tte;
 308 } SparcTLBEntry;
 309
 310 struct CPUTimer
 311 {
 312     const char *name;
 313     uint32_t    frequency;
 314     uint32_t    disabled;
 315     uint64_t    disabled_mask;
 316     int64_t     clock_offset;
 317     struct QEMUTimer  *qtimer;
 318 };
 319
 320 typedef struct CPUTimer CPUTimer;
 321
 322 struct QEMUFile;
 323 void cpu_put_timer(struct QEMUFile *f, CPUTimer *s);
 324 void cpu_get_timer(struct QEMUFile *f, CPUTimer *s);
 325
 326 typedef struct CPUSPARCState {
 327     target_ulong gregs[8]; /* general registers */
 328     target_ulong *regwptr; /* pointer to current register window */
 329     target_ulong pc;       /* program counter */
 330     target_ulong npc;      /* next program counter */
 331     target_ulong y;        /* multiply/divide register */
 332
 333     /* emulator internal flags handling */
 334     target_ulong cc_src, cc_src2;
 335     target_ulong cc_dst;
 336     uint32_t cc_op;
 337
 338     target_ulong t0, t1; /* temporaries live across basic blocks */
 339     target_ulong cond; /* conditional branch result (XXX: save it in a
 340                           temporary register when possible) */
 341
 342     uint32_t psr;      /* processor state register */
 343     target_ulong fsr;      /* FPU state register */
 344     float32 fpr[TARGET_FPREGS];  /* floating point registers */
 345     uint32_t cwp;      /* index of current register window (extracted
 346                           from PSR) */
 347 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
 348     uint32_t wim;      /* window invalid mask */
 349 #endif
 350     target_ulong tbr;  /* trap base register */
 351 #if !defined(TARGET_SPARC64)
 352     int      psrs;     /* supervisor mode (extracted from PSR) */
 353     int      psrps;    /* previous supervisor mode */
 354     int      psret;    /* enable traps */
 355 #endif
 356     uint32_t psrpil;   /* interrupt blocking level */
 357     uint32_t pil_in;   /* incoming interrupt level bitmap */
 358 #if !defined(TARGET_SPARC64)
 359     int      psref;    /* enable fpu */
 360 #endif
 361     target_ulong version;
 362     int interrupt_index;
 363     uint32_t nwindows;
 364     /* NOTE: we allow 8 more registers to handle wrapping */
 365     target_ulong regbase[MAX_NWINDOWS * 16 + 8];
 366
 367     CPU_COMMON
 368
 369     /* MMU regs */
 370 #if defined(TARGET_SPARC64)
 371     uint64_t lsu;
 372 #define DMMU_E 0x8
 373 #define IMMU_E 0x4
 374     //typedef struct SparcMMU
 375     union {
 376         uint64_t immuregs[16];
 377         struct {
 378             uint64_t tsb_tag_target;
 379             uint64_t unused_mmu_primary_context;   // use DMMU
 380             uint64_t unused_mmu_secondary_context; // use DMMU
 381             uint64_t sfsr;
 382             uint64_t sfar;
 383             uint64_t tsb;
 384             uint64_t tag_access;
 385         } immu;
 386     };
 387     union {
 388         uint64_t dmmuregs[16];
 389         struct {
 390             uint64_t tsb_tag_target;
 391             uint64_t mmu_primary_context;
 392             uint64_t mmu_secondary_context;
 393             uint64_t sfsr;
 394             uint64_t sfar;
 395             uint64_t tsb;
 396             uint64_t tag_access;
 397         } dmmu;
 398     };
 399     SparcTLBEntry itlb[64];
 400     SparcTLBEntry dtlb[64];
 401     uint32_t mmu_version;
 402 #else
 403     uint32_t mmuregs[32];
 404     uint64_t mxccdata[4];
 405     uint64_t mxccregs[8];
 406     uint32_t mmubpctrv, mmubpctrc, mmubpctrs;
 407     uint64_t mmubpaction;
 408     uint64_t mmubpregs[4];
 409     uint64_t prom_addr;
 410 #endif
 411     /* temporary float registers */
 412     float64 dt0, dt1;
 413     float128 qt0, qt1;
 414     float_status fp_status;
 415 #if defined(TARGET_SPARC64)
 416 #define MAXTL_MAX 8
 417 #define MAXTL_MASK (MAXTL_MAX - 1)
 418     trap_state ts[MAXTL_MAX];
 419     uint32_t xcc;               /* Extended integer condition codes */
 420     uint32_t asi;
 421     uint32_t pstate;
 422     uint32_t tl;
 423     uint32_t maxtl;
 424     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
 425     uint64_t agregs[8]; /* alternate general registers */
 426     uint64_t bgregs[8]; /* backup for normal global registers */
 427     uint64_t igregs[8]; /* interrupt general registers */
 428     uint64_t mgregs[8]; /* mmu general registers */
 429     uint64_t fprs;
 430     uint64_t tick_cmpr, stick_cmpr;
 431     CPUTimer *tick, *stick;
 432 #define TICK_NPT_MASK        0x8000000000000000ULL
 433 #define TICK_INT_DIS         0x8000000000000000ULL
 434     uint64_t gsr;
 435     uint32_t gl; // UA2005
 436     /* UA 2005 hyperprivileged registers */
 437     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
 438     CPUTimer *hstick; // UA 2005
 439     uint32_t softint;
 440 #define SOFTINT_TIMER   1
 441 #define SOFTINT_STIMER  (1 << 16)
 442 #define SOFTINT_INTRMASK (0xFFFE)
 443 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
 444 #endif
 445     sparc_def_t *def;
 446
 447     void *irq_manager;
 448     void (*qemu_irq_ack) (void *irq_manager, int intno);
 449
 450     /* Leon3 cache control */
 451     uint32_t cache_control;
 452 } CPUSPARCState;
 453
 454 #ifndef NO_CPU_IO_DEFS
 455 /* helper.c */
 456 CPUSPARCState *cpu_sparc_init(const char *cpu_model);
 457 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 458 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 459 int cpu_sparc_handle_mmu_fault(CPUSPARCState *env1, target_ulong address, int rw,
 460                                int mmu_idx, int is_softmmu);
 461 #define cpu_handle_mmu_fault cpu_sparc_handle_mmu_fault
 462 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 463 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUState *env);
 464
 465 /* translate.c */
 466 void gen_intermediate_code_init(CPUSPARCState *env);
 467
 468 /* cpu-exec.c */
 469 int cpu_sparc_exec(CPUSPARCState *s);
 470
 471 /* op_helper.c */
 472 target_ulong cpu_get_psr(CPUState *env1);
 473 void cpu_put_psr(CPUState *env1, target_ulong val);
 474 #ifdef TARGET_SPARC64
 475 target_ulong cpu_get_ccr(CPUState *env1);
 476 void cpu_put_ccr(CPUState *env1, target_ulong val);
 477 target_ulong cpu_get_cwp64(CPUState *env1);
 478 void cpu_put_cwp64(CPUState *env1, int cwp);
 479 void cpu_change_pstate(CPUState *env1, uint32_t new_pstate);
 480 #endif
 481 int cpu_cwp_inc(CPUState *env1, int cwp);
 482 int cpu_cwp_dec(CPUState *env1, int cwp);
 483 void cpu_set_cwp(CPUState *env1, int new_cwp);
 484 void leon3_irq_manager(void *irq_manager, int intno);
 485
 486 /* sun4m.c, sun4u.c */
 487 void cpu_check_irqs(CPUSPARCState *env);
 488
 489 /* leon3.c */
 490 void leon3_irq_ack(void *irq_manager, int intno);
 491
 492 #if defined (TARGET_SPARC64)
 493
 494 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
 495 {
 496     return (x & mask) == (y & mask);
 497 }
 498
 499 #define MMU_CONTEXT_BITS 13
 500 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)
 501
 502 static inline int tlb_compare_context(const SparcTLBEntry *tlb,
 503                                       uint64_t context)
 504 {
 505     return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
 506 }
 507
 508 #endif
 509 #endif
 510
 511 /* cpu-exec.c */
 512 #if !defined(CONFIG_USER_ONLY)
 513 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
 514                           int is_asi, int size);
 515 target_phys_addr_t cpu_get_phys_page_nofault(CPUState *env, target_ulong addr,
 516                                            int mmu_idx);
 517
 518 #endif
 519 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
 520
 521 #define cpu_init cpu_sparc_init
 522 #define cpu_exec cpu_sparc_exec
 523 #define cpu_gen_code cpu_sparc_gen_code
 524 #define cpu_signal_handler cpu_sparc_signal_handler
 525 #define cpu_list sparc_cpu_list
 526
 527 #define CPU_SAVE_VERSION 7
 528
 529 /* MMU modes definitions */
 530 #if defined (TARGET_SPARC64)
 531 #define MMU_USER_IDX   0
 532 #define MMU_MODE0_SUFFIX _user
 533 #define MMU_USER_SECONDARY_IDX   1
 534 #define MMU_MODE1_SUFFIX _user_secondary
 535 #define MMU_KERNEL_IDX 2
 536 #define MMU_MODE2_SUFFIX _kernel
 537 #define MMU_KERNEL_SECONDARY_IDX 3
 538 #define MMU_MODE3_SUFFIX _kernel_secondary
 539 #define MMU_NUCLEUS_IDX 4
 540 #define MMU_MODE4_SUFFIX _nucleus
 541 #define MMU_HYPV_IDX   5
 542 #define MMU_MODE5_SUFFIX _hypv
 543 #else
 544 #define MMU_USER_IDX   0
 545 #define MMU_MODE0_SUFFIX _user
 546 #define MMU_KERNEL_IDX 1
 547 #define MMU_MODE1_SUFFIX _kernel
 548 #endif
 549
 550 #if defined (TARGET_SPARC64)
 551 static inline int cpu_has_hypervisor(CPUState *env1)
 552 {
 553     return env1->def->features & CPU_FEATURE_HYPV;
 554 }
 555
 556 static inline int cpu_hypervisor_mode(CPUState *env1)
 557 {
 558     return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
 559 }
 560
 561 static inline int cpu_supervisor_mode(CPUState *env1)
 562 {
 563     return env1->pstate & PS_PRIV;
 564 }
 565 #endif
 566
 567 static inline int cpu_mmu_index(CPUState *env1)
 568 {
 569 #if defined(CONFIG_USER_ONLY)
 570     return MMU_USER_IDX;
 571 #elif !defined(TARGET_SPARC64)
 572     return env1->psrs;
 573 #else
 574     if (env1->tl > 0) {
 575         return MMU_NUCLEUS_IDX;
 576     } else if (cpu_hypervisor_mode(env1)) {
 577         return MMU_HYPV_IDX;
 578     } else if (cpu_supervisor_mode(env1)) {
 579         return MMU_KERNEL_IDX;
 580     } else {
 581         return MMU_USER_IDX;
 582     }
 583 #endif
 584 }
 585
 586 static inline int cpu_interrupts_enabled(CPUState *env1)
 587 {
 588 #if !defined (TARGET_SPARC64)
 589     if (env1->psret != 0)
 590         return 1;
 591 #else
 592     if (env1->pstate & PS_IE)
 593         return 1;
 594 #endif
 595
 596     return 0;
 597 }
 598
 599 static inline int cpu_pil_allowed(CPUState *env1, int pil)
 600 {
 601 #if !defined(TARGET_SPARC64)
 602     /* level 15 is non-maskable on sparc v8 */
 603     return pil == 15 || pil > env1->psrpil;
 604 #else
 605     return pil > env1->psrpil;
 606 #endif
 607 }
 608
 609 static inline int cpu_fpu_enabled(CPUState *env1)
 610 {
 611 #if defined(CONFIG_USER_ONLY)
 612     return 1;
 613 #elif !defined(TARGET_SPARC64)
 614     return env1->psref;
 615 #else
 616     return ((env1->pstate & PS_PEF) != 0) && ((env1->fprs & FPRS_FEF) != 0);
 617 #endif
 618 }
 619
 620 #if defined(CONFIG_USER_ONLY)
 621 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 622 {
 623     if (newsp)
 624         env->regwptr[22] = newsp;
 625     env->regwptr[0] = 0;
 626     /* FIXME: Do we also need to clear CF?  */
 627     /* XXXXX */
 628     printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
 629 }
 630 #endif
 631
 632 #include "cpu-all.h"
 633
 634 #ifdef TARGET_SPARC64
 635 /* sun4u.c */
 636 void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
 637 uint64_t cpu_tick_get_count(CPUTimer *timer);
 638 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
 639 trap_state* cpu_tsptr(CPUState* env);
 640 #endif
 641
 642 static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
 643                                         target_ulong *cs_base, int *flags)
 644 {
 645     *pc = env->pc;
 646     *cs_base = env->npc;
 647 #ifdef TARGET_SPARC64
 648     // AM . Combined FPU enable bits . PRIV . DMMU enabled . IMMU enabled
 649     *flags = ((env->pstate & PS_AM) << 2)          /* 5 */
 650         | (((env->pstate & PS_PEF) >> 1)           /* 3 */
 651         | ((env->fprs & FPRS_FEF) << 2))           /* 4 */
 652         | (env->pstate & PS_PRIV)                  /* 2 */
 653         | ((env->lsu & (DMMU_E | IMMU_E)) >> 2)    /* 1, 0 */
 654         | ((env->tl & 0xff) << 8)
 655         | (env->dmmu.mmu_primary_context << 16);   /* 16... */
 656 #else
 657     // FPU enable . Supervisor
 658     *flags = (env->psref << 4) | env->psrs;
 659 #endif
 660 }
 661
 662 /* helper.c */
 663 void do_interrupt(CPUState *env);
 664
 665 static inline bool cpu_has_work(CPUState *env1)
 666 {
 667     return (env1->interrupt_request & CPU_INTERRUPT_HARD) &&
 668            cpu_interrupts_enabled(env1);
 669 }
 670
 671 #include "exec-all.h"
 672
 673 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
 674 {
 675     env->pc = tb->pc;
 676     env->npc = tb->cs_base;
 677 }
 678
 679 #endif