target-sparc/cpu.h

   1 #ifndef CPU_SPARC_H
   2 #define CPU_SPARC_H
   3
   4 #include "config.h"
   5
   6 #if !defined(TARGET_SPARC64)
   7 #define TARGET_LONG_BITS 32
   8 #define TARGET_FPREGS 32
   9 #define TARGET_PAGE_BITS 12 /* 4k */
  10 #define TARGET_PHYS_ADDR_SPACE_BITS 36
  11 #define TARGET_VIRT_ADDR_SPACE_BITS 32
  12 #else
  13 #define TARGET_LONG_BITS 64
  14 #define TARGET_FPREGS 64
  15 #define TARGET_PAGE_BITS 13 /* 8k */
  16 #define TARGET_PHYS_ADDR_SPACE_BITS 41
  17 # ifdef TARGET_ABI32
  18 #  define TARGET_VIRT_ADDR_SPACE_BITS 32
  19 # else
  20 #  define TARGET_VIRT_ADDR_SPACE_BITS 44
  21 # endif
  22 #endif
  23
  24 #define CPUState struct CPUSPARCState
  25
  26 #include "cpu-defs.h"
  27
  28 #include "softfloat.h"
  29
  30 #define TARGET_HAS_ICE 1
  31
  32 #if !defined(TARGET_SPARC64)
  33 #define ELF_MACHINE     EM_SPARC
  34 #else
  35 #define ELF_MACHINE     EM_SPARCV9
  36 #endif
  37
  38 /*#define EXCP_INTERRUPT 0x100*/
  39
  40 /* trap definitions */
  41 #ifndef TARGET_SPARC64
  42 #define TT_TFAULT   0x01
  43 #define TT_ILL_INSN 0x02
  44 #define TT_PRIV_INSN 0x03
  45 #define TT_NFPU_INSN 0x04
  46 #define TT_WIN_OVF  0x05
  47 #define TT_WIN_UNF  0x06
  48 #define TT_UNALIGNED 0x07
  49 #define TT_FP_EXCP  0x08
  50 #define TT_DFAULT   0x09
  51 #define TT_TOVF     0x0a
  52 #define TT_EXTINT   0x10
  53 #define TT_CODE_ACCESS 0x21
  54 #define TT_UNIMP_FLUSH 0x25
  55 #define TT_DATA_ACCESS 0x29
  56 #define TT_DIV_ZERO 0x2a
  57 #define TT_NCP_INSN 0x24
  58 #define TT_TRAP     0x80
  59 #else
  60 #define TT_POWER_ON_RESET 0x01
  61 #define TT_TFAULT   0x08
  62 #define TT_CODE_ACCESS 0x0a
  63 #define TT_ILL_INSN 0x10
  64 #define TT_UNIMP_FLUSH TT_ILL_INSN
  65 #define TT_PRIV_INSN 0x11
  66 #define TT_NFPU_INSN 0x20
  67 #define TT_FP_EXCP  0x21
  68 #define TT_TOVF     0x23
  69 #define TT_CLRWIN   0x24
  70 #define TT_DIV_ZERO 0x28
  71 #define TT_DFAULT   0x30
  72 #define TT_DATA_ACCESS 0x32
  73 #define TT_UNALIGNED 0x34
  74 #define TT_PRIV_ACT 0x37
  75 #define TT_EXTINT   0x40
  76 #define TT_IVEC     0x60
  77 #define TT_TMISS    0x64
  78 #define TT_DMISS    0x68
  79 #define TT_DPROT    0x6c
  80 #define TT_SPILL    0x80
  81 #define TT_FILL     0xc0
  82 #define TT_WOTHER   (1 << 5)
  83 #define TT_TRAP     0x100
  84 #endif
  85
  86 #define PSR_NEG_SHIFT 23
  87 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
  88 #define PSR_ZERO_SHIFT 22
  89 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
  90 #define PSR_OVF_SHIFT 21
  91 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
  92 #define PSR_CARRY_SHIFT 20
  93 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
  94 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
  95 #if !defined(TARGET_SPARC64)
  96 #define PSR_EF    (1<<12)
  97 #define PSR_PIL   0xf00
  98 #define PSR_S     (1<<7)
  99 #define PSR_PS    (1<<6)
 100 #define PSR_ET    (1<<5)
 101 #define PSR_CWP   0x1f
 102 #endif
 103
 104 #define CC_SRC (env->cc_src)
 105 #define CC_SRC2 (env->cc_src2)
 106 #define CC_DST (env->cc_dst)
 107 #define CC_OP  (env->cc_op)
 108
 109 enum {
 110     CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
 111     CC_OP_FLAGS,   /* all cc are back in status register */
 112     CC_OP_DIV,     /* modify N, Z and V, C = 0*/
 113     CC_OP_ADD,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 114     CC_OP_ADDX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 115     CC_OP_TADD,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 116     CC_OP_TADDTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 117     CC_OP_SUB,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 118     CC_OP_SUBX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 119     CC_OP_TSUB,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 120     CC_OP_TSUBTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 121     CC_OP_LOGIC,   /* modify N and Z, C = V = 0, CC_DST = res */
 122     CC_OP_NB,
 123 };
 124
 125 /* Trap base register */
 126 #define TBR_BASE_MASK 0xfffff000
 127
 128 #if defined(TARGET_SPARC64)
 129 #define PS_TCT   (1<<12) /* UA2007, impl.dep. trap on control transfer */
 130 #define PS_IG    (1<<11) /* v9, zero on UA2007 */
 131 #define PS_MG    (1<<10) /* v9, zero on UA2007 */
 132 #define PS_CLE   (1<<9) /* UA2007 */
 133 #define PS_TLE   (1<<8) /* UA2007 */
 134 #define PS_RMO   (1<<7)
 135 #define PS_RED   (1<<5) /* v9, zero on UA2007 */
 136 #define PS_PEF   (1<<4) /* enable fpu */
 137 #define PS_AM    (1<<3) /* address mask */
 138 #define PS_PRIV  (1<<2)
 139 #define PS_IE    (1<<1)
 140 #define PS_AG    (1<<0) /* v9, zero on UA2007 */
 141
 142 #define FPRS_FEF (1<<2)
 143
 144 #define HS_PRIV  (1<<2)
 145 #endif
 146
 147 /* Fcc */
 148 #define FSR_RD1        (1ULL << 31)
 149 #define FSR_RD0        (1ULL << 30)
 150 #define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
 151 #define FSR_RD_NEAREST 0
 152 #define FSR_RD_ZERO    FSR_RD0
 153 #define FSR_RD_POS     FSR_RD1
 154 #define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)
 155
 156 #define FSR_NVM   (1ULL << 27)
 157 #define FSR_OFM   (1ULL << 26)
 158 #define FSR_UFM   (1ULL << 25)
 159 #define FSR_DZM   (1ULL << 24)
 160 #define FSR_NXM   (1ULL << 23)
 161 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
 162
 163 #define FSR_NVA   (1ULL << 9)
 164 #define FSR_OFA   (1ULL << 8)
 165 #define FSR_UFA   (1ULL << 7)
 166 #define FSR_DZA   (1ULL << 6)
 167 #define FSR_NXA   (1ULL << 5)
 168 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
 169
 170 #define FSR_NVC   (1ULL << 4)
 171 #define FSR_OFC   (1ULL << 3)
 172 #define FSR_UFC   (1ULL << 2)
 173 #define FSR_DZC   (1ULL << 1)
 174 #define FSR_NXC   (1ULL << 0)
 175 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
 176
 177 #define FSR_FTT2   (1ULL << 16)
 178 #define FSR_FTT1   (1ULL << 15)
 179 #define FSR_FTT0   (1ULL << 14)
 180 //gcc warns about constant overflow for ~FSR_FTT_MASK
 181 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
 182 #ifdef TARGET_SPARC64
 183 #define FSR_FTT_NMASK      0xfffffffffffe3fffULL
 184 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
 185 #define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
 186 #define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
 187 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
 188 #else
 189 #define FSR_FTT_NMASK      0xfffe3fffULL
 190 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
 191 #define FSR_LDFSR_OLDMASK  0x000fc000ULL
 192 #endif
 193 #define FSR_LDFSR_MASK     0xcfc00fffULL
 194 #define FSR_FTT_IEEE_EXCP (1ULL << 14)
 195 #define FSR_FTT_UNIMPFPOP (3ULL << 14)
 196 #define FSR_FTT_SEQ_ERROR (4ULL << 14)
 197 #define FSR_FTT_INVAL_FPR (6ULL << 14)
 198
 199 #define FSR_FCC1_SHIFT 11
 200 #define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
 201 #define FSR_FCC0_SHIFT 10
 202 #define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)
 203
 204 /* MMU */
 205 #define MMU_E     (1<<0)
 206 #define MMU_NF    (1<<1)
 207
 208 #define PTE_ENTRYTYPE_MASK 3
 209 #define PTE_ACCESS_MASK    0x1c
 210 #define PTE_ACCESS_SHIFT   2
 211 #define PTE_PPN_SHIFT      7
 212 #define PTE_ADDR_MASK      0xffffff00
 213
 214 #define PG_ACCESSED_BIT 5
 215 #define PG_MODIFIED_BIT 6
 216 #define PG_CACHE_BIT    7
 217
 218 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
 219 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 220 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)
 221
 222 /* 3 <= NWINDOWS <= 32. */
 223 #define MIN_NWINDOWS 3
 224 #define MAX_NWINDOWS 32
 225
 226 #if !defined(TARGET_SPARC64)
 227 #define NB_MMU_MODES 2
 228 #else
 229 #define NB_MMU_MODES 6
 230 typedef struct trap_state {
 231     uint64_t tpc;
 232     uint64_t tnpc;
 233     uint64_t tstate;
 234     uint32_t tt;
 235 } trap_state;
 236 #endif
 237
 238 typedef struct sparc_def_t {
 239     const char *name;
 240     target_ulong iu_version;
 241     uint32_t fpu_version;
 242     uint32_t mmu_version;
 243     uint32_t mmu_bm;
 244     uint32_t mmu_ctpr_mask;
 245     uint32_t mmu_cxr_mask;
 246     uint32_t mmu_sfsr_mask;
 247     uint32_t mmu_trcr_mask;
 248     uint32_t mxcc_version;
 249     uint32_t features;
 250     uint32_t nwindows;
 251     uint32_t maxtl;
 252 } sparc_def_t;
 253
 254 #define CPU_FEATURE_FLOAT    (1 << 0)
 255 #define CPU_FEATURE_FLOAT128 (1 << 1)
 256 #define CPU_FEATURE_SWAP     (1 << 2)
 257 #define CPU_FEATURE_MUL      (1 << 3)
 258 #define CPU_FEATURE_DIV      (1 << 4)
 259 #define CPU_FEATURE_FLUSH    (1 << 5)
 260 #define CPU_FEATURE_FSQRT    (1 << 6)
 261 #define CPU_FEATURE_FMUL     (1 << 7)
 262 #define CPU_FEATURE_VIS1     (1 << 8)
 263 #define CPU_FEATURE_VIS2     (1 << 9)
 264 #define CPU_FEATURE_FSMULD   (1 << 10)
 265 #define CPU_FEATURE_HYPV     (1 << 11)
 266 #define CPU_FEATURE_CMT      (1 << 12)
 267 #define CPU_FEATURE_GL       (1 << 13)
 268 #ifndef TARGET_SPARC64
 269 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 270                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 271                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 272                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 273 #else
 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_VIS1 |   \
 278                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD)
 279 enum {
 280     mmu_us_12, // Ultrasparc < III (64 entry TLB)
 281     mmu_us_3,  // Ultrasparc III (512 entry TLB)
 282     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
 283     mmu_sun4v, // T1, T2
 284 };
 285 #endif
 286
 287 #define TTE_VALID_BIT       (1ULL << 63)
 288 #define TTE_USED_BIT        (1ULL << 41)
 289 #define TTE_LOCKED_BIT      (1ULL <<  6)
 290 #define TTE_GLOBAL_BIT      (1ULL <<  0)
 291
 292 #define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
 293 #define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
 294 #define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
 295 #define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)
 296
 297 #define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
 298 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)
 299
 300 typedef struct SparcTLBEntry {
 301     uint64_t tag;
 302     uint64_t tte;
 303 } SparcTLBEntry;
 304
 305 struct CPUTimer
 306 {
 307     const char *name;
 308     uint32_t    frequency;
 309     uint32_t    disabled;
 310     uint64_t    disabled_mask;
 311     int64_t     clock_offset;
 312     struct QEMUTimer  *qtimer;
 313 };
 314
 315 typedef struct CPUTimer CPUTimer;
 316
 317 struct QEMUFile;
 318 void cpu_put_timer(struct QEMUFile *f, CPUTimer *s);
 319 void cpu_get_timer(struct QEMUFile *f, CPUTimer *s);
 320
 321 typedef struct CPUSPARCState {
 322     target_ulong gregs[8]; /* general registers */
 323     target_ulong *regwptr; /* pointer to current register window */
 324     target_ulong pc;       /* program counter */
 325     target_ulong npc;      /* next program counter */
 326     target_ulong y;        /* multiply/divide register */
 327
 328     /* emulator internal flags handling */
 329     target_ulong cc_src, cc_src2;
 330     target_ulong cc_dst;
 331     uint32_t cc_op;
 332
 333     target_ulong t0, t1; /* temporaries live across basic blocks */
 334     target_ulong cond; /* conditional branch result (XXX: save it in a
 335                           temporary register when possible) */
 336
 337     uint32_t psr;      /* processor state register */
 338     target_ulong fsr;      /* FPU state register */
 339     float32 fpr[TARGET_FPREGS];  /* floating point registers */
 340     uint32_t cwp;      /* index of current register window (extracted
 341                           from PSR) */
 342 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
 343     uint32_t wim;      /* window invalid mask */
 344 #endif
 345     target_ulong tbr;  /* trap base register */
 346 #if !defined(TARGET_SPARC64)
 347     int      psrs;     /* supervisor mode (extracted from PSR) */
 348     int      psrps;    /* previous supervisor mode */
 349     int      psret;    /* enable traps */
 350 #endif
 351     uint32_t psrpil;   /* interrupt blocking level */
 352     uint32_t pil_in;   /* incoming interrupt level bitmap */
 353 #if !defined(TARGET_SPARC64)
 354     int      psref;    /* enable fpu */
 355 #endif
 356     target_ulong version;
 357     int interrupt_index;
 358     uint32_t nwindows;
 359     /* NOTE: we allow 8 more registers to handle wrapping */
 360     target_ulong regbase[MAX_NWINDOWS * 16 + 8];
 361
 362     CPU_COMMON
 363
 364     /* MMU regs */
 365 #if defined(TARGET_SPARC64)
 366     uint64_t lsu;
 367 #define DMMU_E 0x8
 368 #define IMMU_E 0x4
 369     //typedef struct SparcMMU
 370     union {
 371         uint64_t immuregs[16];
 372         struct {
 373             uint64_t tsb_tag_target;
 374             uint64_t unused_mmu_primary_context;   // use DMMU
 375             uint64_t unused_mmu_secondary_context; // use DMMU
 376             uint64_t sfsr;
 377             uint64_t sfar;
 378             uint64_t tsb;
 379             uint64_t tag_access;
 380         } immu;
 381     };
 382     union {
 383         uint64_t dmmuregs[16];
 384         struct {
 385             uint64_t tsb_tag_target;
 386             uint64_t mmu_primary_context;
 387             uint64_t mmu_secondary_context;
 388             uint64_t sfsr;
 389             uint64_t sfar;
 390             uint64_t tsb;
 391             uint64_t tag_access;
 392         } dmmu;
 393     };
 394     SparcTLBEntry itlb[64];
 395     SparcTLBEntry dtlb[64];
 396     uint32_t mmu_version;
 397 #else
 398     uint32_t mmuregs[32];
 399     uint64_t mxccdata[4];
 400     uint64_t mxccregs[8];
 401     uint64_t mmubpregs[4];
 402     uint64_t prom_addr;
 403 #endif
 404     /* temporary float registers */
 405     float64 dt0, dt1;
 406     float128 qt0, qt1;
 407     float_status fp_status;
 408 #if defined(TARGET_SPARC64)
 409 #define MAXTL_MAX 8
 410 #define MAXTL_MASK (MAXTL_MAX - 1)
 411     trap_state ts[MAXTL_MAX];
 412     uint32_t xcc;               /* Extended integer condition codes */
 413     uint32_t asi;
 414     uint32_t pstate;
 415     uint32_t tl;
 416     uint32_t maxtl;
 417     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
 418     uint64_t agregs[8]; /* alternate general registers */
 419     uint64_t bgregs[8]; /* backup for normal global registers */
 420     uint64_t igregs[8]; /* interrupt general registers */
 421     uint64_t mgregs[8]; /* mmu general registers */
 422     uint64_t fprs;
 423     uint64_t tick_cmpr, stick_cmpr;
 424     CPUTimer *tick, *stick;
 425 #define TICK_NPT_MASK        0x8000000000000000ULL
 426 #define TICK_INT_DIS         0x8000000000000000ULL
 427     uint64_t gsr;
 428     uint32_t gl; // UA2005
 429     /* UA 2005 hyperprivileged registers */
 430     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
 431     CPUTimer *hstick; // UA 2005
 432     uint32_t softint;
 433 #define SOFTINT_TIMER   1
 434 #define SOFTINT_STIMER  (1 << 16)
 435 #define SOFTINT_INTRMASK (0xFFFE)
 436 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
 437 #endif
 438     sparc_def_t *def;
 439 } CPUSPARCState;
 440
 441 #ifndef NO_CPU_IO_DEFS
 442 /* helper.c */
 443 CPUSPARCState *cpu_sparc_init(const char *cpu_model);
 444 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 445 void sparc_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt,
 446                                                  ...));
 447 void cpu_lock(void);
 448 void cpu_unlock(void);
 449 int cpu_sparc_handle_mmu_fault(CPUSPARCState *env1, target_ulong address, int rw,
 450                                int mmu_idx, int is_softmmu);
 451 #define cpu_handle_mmu_fault cpu_sparc_handle_mmu_fault
 452 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 453 void dump_mmu(CPUSPARCState *env);
 454
 455 /* translate.c */
 456 void gen_intermediate_code_init(CPUSPARCState *env);
 457
 458 /* cpu-exec.c */
 459 int cpu_sparc_exec(CPUSPARCState *s);
 460
 461 /* op_helper.c */
 462 target_ulong cpu_get_psr(CPUState *env1);
 463 void cpu_put_psr(CPUState *env1, target_ulong val);
 464 #ifdef TARGET_SPARC64
 465 target_ulong cpu_get_ccr(CPUState *env1);
 466 void cpu_put_ccr(CPUState *env1, target_ulong val);
 467 target_ulong cpu_get_cwp64(CPUState *env1);
 468 void cpu_put_cwp64(CPUState *env1, int cwp);
 469 #endif
 470 int cpu_cwp_inc(CPUState *env1, int cwp);
 471 int cpu_cwp_dec(CPUState *env1, int cwp);
 472 void cpu_set_cwp(CPUState *env1, int new_cwp);
 473
 474 /* sun4m.c, sun4u.c */
 475 void cpu_check_irqs(CPUSPARCState *env);
 476
 477 #if defined (TARGET_SPARC64)
 478
 479 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
 480 {
 481     return (x & mask) == (y & mask);
 482 }
 483
 484 #define MMU_CONTEXT_BITS 13
 485 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)
 486
 487 static inline int tlb_compare_context(const SparcTLBEntry *tlb,
 488                                       uint64_t context)
 489 {
 490     return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
 491 }
 492
 493 #endif
 494 #endif
 495
 496 /* cpu-exec.c */
 497 #if !defined(CONFIG_USER_ONLY)
 498 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
 499                           int is_asi, int size);
 500 target_phys_addr_t cpu_get_phys_page_nofault(CPUState *env, target_ulong addr,
 501                                            int mmu_idx);
 502
 503 #endif
 504 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
 505
 506 #define cpu_init cpu_sparc_init
 507 #define cpu_exec cpu_sparc_exec
 508 #define cpu_gen_code cpu_sparc_gen_code
 509 #define cpu_signal_handler cpu_sparc_signal_handler
 510 #define cpu_list sparc_cpu_list
 511
 512 #define CPU_SAVE_VERSION 6
 513
 514 /* MMU modes definitions */
 515 #if defined (TARGET_SPARC64)
 516 #define MMU_USER_IDX   0
 517 #define MMU_MODE0_SUFFIX _user
 518 #define MMU_USER_SECONDARY_IDX   1
 519 #define MMU_MODE1_SUFFIX _user_secondary
 520 #define MMU_KERNEL_IDX 2
 521 #define MMU_MODE2_SUFFIX _kernel
 522 #define MMU_KERNEL_SECONDARY_IDX 3
 523 #define MMU_MODE3_SUFFIX _kernel_secondary
 524 #define MMU_NUCLEUS_IDX 4
 525 #define MMU_MODE4_SUFFIX _nucleus
 526 #define MMU_HYPV_IDX   5
 527 #define MMU_MODE5_SUFFIX _hypv
 528 #else
 529 #define MMU_USER_IDX   0
 530 #define MMU_MODE0_SUFFIX _user
 531 #define MMU_KERNEL_IDX 1
 532 #define MMU_MODE1_SUFFIX _kernel
 533 #endif
 534
 535 #if defined (TARGET_SPARC64)
 536 static inline int cpu_has_hypervisor(CPUState *env1)
 537 {
 538     return env1->def->features & CPU_FEATURE_HYPV;
 539 }
 540
 541 static inline int cpu_hypervisor_mode(CPUState *env1)
 542 {
 543     return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
 544 }
 545
 546 static inline int cpu_supervisor_mode(CPUState *env1)
 547 {
 548     return env1->pstate & PS_PRIV;
 549 }
 550 #endif
 551
 552 static inline int cpu_mmu_index(CPUState *env1)
 553 {
 554 #if defined(CONFIG_USER_ONLY)
 555     return MMU_USER_IDX;
 556 #elif !defined(TARGET_SPARC64)
 557     return env1->psrs;
 558 #else
 559     if (env1->tl > 0) {
 560         return MMU_NUCLEUS_IDX;
 561     } else if (cpu_hypervisor_mode(env1)) {
 562         return MMU_HYPV_IDX;
 563     } else if (cpu_supervisor_mode(env1)) {
 564         return MMU_KERNEL_IDX;
 565     } else {
 566         return MMU_USER_IDX;
 567     }
 568 #endif
 569 }
 570
 571 static inline int cpu_interrupts_enabled(CPUState *env1)
 572 {
 573 #if !defined (TARGET_SPARC64)
 574     if (env1->psret != 0)
 575         return 1;
 576 #else
 577     if (env1->pstate & PS_IE)
 578         return 1;
 579 #endif
 580
 581     return 0;
 582 }
 583
 584 static inline int cpu_pil_allowed(CPUState *env1, int pil)
 585 {
 586 #if !defined(TARGET_SPARC64)
 587     /* level 15 is non-maskable on sparc v8 */
 588     return pil == 15 || pil > env1->psrpil;
 589 #else
 590     return pil > env1->psrpil;
 591 #endif
 592 }
 593
 594 static inline int cpu_fpu_enabled(CPUState *env1)
 595 {
 596 #if defined(CONFIG_USER_ONLY)
 597     return 1;
 598 #elif !defined(TARGET_SPARC64)
 599     return env1->psref;
 600 #else
 601     return ((env1->pstate & PS_PEF) != 0) && ((env1->fprs & FPRS_FEF) != 0);
 602 #endif
 603 }
 604
 605 #if defined(CONFIG_USER_ONLY)
 606 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 607 {
 608     if (newsp)
 609         env->regwptr[22] = newsp;
 610     env->regwptr[0] = 0;
 611     /* FIXME: Do we also need to clear CF?  */
 612     /* XXXXX */
 613     printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
 614 }
 615 #endif
 616
 617 #include "cpu-all.h"
 618
 619 #ifdef TARGET_SPARC64
 620 /* sun4u.c */
 621 void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
 622 uint64_t cpu_tick_get_count(CPUTimer *timer);
 623 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
 624 trap_state* cpu_tsptr(CPUState* env);
 625 #endif
 626
 627 static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
 628                                         target_ulong *cs_base, int *flags)
 629 {
 630     *pc = env->pc;
 631     *cs_base = env->npc;
 632 #ifdef TARGET_SPARC64
 633     // AM . Combined FPU enable bits . PRIV . DMMU enabled . IMMU enabled
 634     *flags = ((env->pstate & PS_AM) << 2)          /* 5 */
 635         | (((env->pstate & PS_PEF) >> 1)           /* 3 */
 636         | ((env->fprs & FPRS_FEF) << 2))           /* 4 */
 637         | (env->pstate & PS_PRIV)                  /* 2 */
 638         | ((env->lsu & (DMMU_E | IMMU_E)) >> 2)    /* 1, 0 */
 639         | ((env->tl & 0xff) << 8)
 640         | (env->dmmu.mmu_primary_context << 16);   /* 16... */
 641 #else
 642     // FPU enable . Supervisor
 643     *flags = (env->psref << 4) | env->psrs;
 644 #endif
 645 }
 646
 647 #endif