target/sparc/cpu.h

   1 #ifndef SPARC_CPU_H
   2 #define SPARC_CPU_H
   3
   4 #include "qemu/bswap.h"
   5 #include "cpu-qom.h"
   6 #include "exec/cpu-defs.h"
   7 #include "qemu/cpu-float.h"
   8
   9 #if !defined(TARGET_SPARC64)
  10 #define TARGET_DPREGS 16
  11 #else
  12 #define TARGET_DPREGS 32
  13 #endif
  14
  15 /*#define EXCP_INTERRUPT 0x100*/
  16
  17 /* Windowed register indexes.  */
  18 enum {
  19     WREG_O0,
  20     WREG_O1,
  21     WREG_O2,
  22     WREG_O3,
  23     WREG_O4,
  24     WREG_O5,
  25     WREG_O6,
  26     WREG_O7,
  27
  28     WREG_L0,
  29     WREG_L1,
  30     WREG_L2,
  31     WREG_L3,
  32     WREG_L4,
  33     WREG_L5,
  34     WREG_L6,
  35     WREG_L7,
  36
  37     WREG_I0,
  38     WREG_I1,
  39     WREG_I2,
  40     WREG_I3,
  41     WREG_I4,
  42     WREG_I5,
  43     WREG_I6,
  44     WREG_I7,
  45
  46     WREG_SP = WREG_O6,
  47     WREG_FP = WREG_I6,
  48 };
  49
  50 /* trap definitions */
  51 #ifndef TARGET_SPARC64
  52 #define TT_TFAULT   0x01
  53 #define TT_ILL_INSN 0x02
  54 #define TT_PRIV_INSN 0x03
  55 #define TT_NFPU_INSN 0x04
  56 #define TT_WIN_OVF  0x05
  57 #define TT_WIN_UNF  0x06
  58 #define TT_UNALIGNED 0x07
  59 #define TT_FP_EXCP  0x08
  60 #define TT_DFAULT   0x09
  61 #define TT_TOVF     0x0a
  62 #define TT_EXTINT   0x10
  63 #define TT_CODE_ACCESS 0x21
  64 #define TT_UNIMP_FLUSH 0x25
  65 #define TT_DATA_ACCESS 0x29
  66 #define TT_DIV_ZERO 0x2a
  67 #define TT_NCP_INSN 0x24
  68 #define TT_TRAP     0x80
  69 #else
  70 #define TT_POWER_ON_RESET 0x01
  71 #define TT_TFAULT   0x08
  72 #define TT_CODE_ACCESS 0x0a
  73 #define TT_ILL_INSN 0x10
  74 #define TT_UNIMP_FLUSH TT_ILL_INSN
  75 #define TT_PRIV_INSN 0x11
  76 #define TT_NFPU_INSN 0x20
  77 #define TT_FP_EXCP  0x21
  78 #define TT_TOVF     0x23
  79 #define TT_CLRWIN   0x24
  80 #define TT_DIV_ZERO 0x28
  81 #define TT_DFAULT   0x30
  82 #define TT_DATA_ACCESS 0x32
  83 #define TT_UNALIGNED 0x34
  84 #define TT_PRIV_ACT 0x37
  85 #define TT_INSN_REAL_TRANSLATION_MISS 0x3e
  86 #define TT_DATA_REAL_TRANSLATION_MISS 0x3f
  87 #define TT_EXTINT   0x40
  88 #define TT_IVEC     0x60
  89 #define TT_TMISS    0x64
  90 #define TT_DMISS    0x68
  91 #define TT_DPROT    0x6c
  92 #define TT_SPILL    0x80
  93 #define TT_FILL     0xc0
  94 #define TT_WOTHER   (1 << 5)
  95 #define TT_TRAP     0x100
  96 #define TT_HTRAP    0x180
  97 #endif
  98
  99 #define PSR_NEG_SHIFT 23
 100 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
 101 #define PSR_ZERO_SHIFT 22
 102 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
 103 #define PSR_OVF_SHIFT 21
 104 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
 105 #define PSR_CARRY_SHIFT 20
 106 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
 107 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
 108 #if !defined(TARGET_SPARC64)
 109 #define PSR_EF    (1<<12)
 110 #define PSR_PIL   0xf00
 111 #define PSR_S     (1<<7)
 112 #define PSR_PS    (1<<6)
 113 #define PSR_ET    (1<<5)
 114 #define PSR_CWP   0x1f
 115 #endif
 116
 117 #define CC_SRC (env->cc_src)
 118 #define CC_SRC2 (env->cc_src2)
 119 #define CC_DST (env->cc_dst)
 120 #define CC_OP  (env->cc_op)
 121
 122 /* Even though lazy evaluation of CPU condition codes tends to be less
 123  * important on RISC systems where condition codes are only updated
 124  * when explicitly requested, SPARC uses it to update 32-bit and 64-bit
 125  * condition codes.
 126  */
 127 enum {
 128     CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
 129     CC_OP_FLAGS,   /* all cc are back in status register */
 130     CC_OP_DIV,     /* modify N, Z and V, C = 0*/
 131     CC_OP_ADD,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 132     CC_OP_ADDX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 133     CC_OP_TADD,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 134     CC_OP_TADDTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 135     CC_OP_SUB,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 136     CC_OP_SUBX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 137     CC_OP_TSUB,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 138     CC_OP_TSUBTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 139     CC_OP_LOGIC,   /* modify N and Z, C = V = 0, CC_DST = res */
 140     CC_OP_NB,
 141 };
 142
 143 /* Trap base register */
 144 #define TBR_BASE_MASK 0xfffff000
 145
 146 #if defined(TARGET_SPARC64)
 147 #define PS_TCT   (1<<12) /* UA2007, impl.dep. trap on control transfer */
 148 #define PS_IG    (1<<11) /* v9, zero on UA2007 */
 149 #define PS_MG    (1<<10) /* v9, zero on UA2007 */
 150 #define PS_CLE   (1<<9) /* UA2007 */
 151 #define PS_TLE   (1<<8) /* UA2007 */
 152 #define PS_RMO   (1<<7)
 153 #define PS_RED   (1<<5) /* v9, zero on UA2007 */
 154 #define PS_PEF   (1<<4) /* enable fpu */
 155 #define PS_AM    (1<<3) /* address mask */
 156 #define PS_PRIV  (1<<2)
 157 #define PS_IE    (1<<1)
 158 #define PS_AG    (1<<0) /* v9, zero on UA2007 */
 159
 160 #define FPRS_DL (1 << 0)
 161 #define FPRS_DU (1 << 1)
 162 #define FPRS_FEF (1 << 2)
 163
 164 #define HS_PRIV  (1<<2)
 165 #endif
 166
 167 /* Fcc */
 168 #define FSR_RD1        (1ULL << 31)
 169 #define FSR_RD0        (1ULL << 30)
 170 #define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
 171 #define FSR_RD_NEAREST 0
 172 #define FSR_RD_ZERO    FSR_RD0
 173 #define FSR_RD_POS     FSR_RD1
 174 #define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)
 175
 176 #define FSR_NVM   (1ULL << 27)
 177 #define FSR_OFM   (1ULL << 26)
 178 #define FSR_UFM   (1ULL << 25)
 179 #define FSR_DZM   (1ULL << 24)
 180 #define FSR_NXM   (1ULL << 23)
 181 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
 182
 183 #define FSR_NVA   (1ULL << 9)
 184 #define FSR_OFA   (1ULL << 8)
 185 #define FSR_UFA   (1ULL << 7)
 186 #define FSR_DZA   (1ULL << 6)
 187 #define FSR_NXA   (1ULL << 5)
 188 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
 189
 190 #define FSR_NVC   (1ULL << 4)
 191 #define FSR_OFC   (1ULL << 3)
 192 #define FSR_UFC   (1ULL << 2)
 193 #define FSR_DZC   (1ULL << 1)
 194 #define FSR_NXC   (1ULL << 0)
 195 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
 196
 197 #define FSR_FTT2   (1ULL << 16)
 198 #define FSR_FTT1   (1ULL << 15)
 199 #define FSR_FTT0   (1ULL << 14)
 200 //gcc warns about constant overflow for ~FSR_FTT_MASK
 201 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
 202 #ifdef TARGET_SPARC64
 203 #define FSR_FTT_NMASK      0xfffffffffffe3fffULL
 204 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
 205 #define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
 206 #define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
 207 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
 208 #else
 209 #define FSR_FTT_NMASK      0xfffe3fffULL
 210 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
 211 #define FSR_LDFSR_OLDMASK  0x000fc000ULL
 212 #endif
 213 #define FSR_LDFSR_MASK     0xcfc00fffULL
 214 #define FSR_FTT_IEEE_EXCP (1ULL << 14)
 215 #define FSR_FTT_UNIMPFPOP (3ULL << 14)
 216 #define FSR_FTT_SEQ_ERROR (4ULL << 14)
 217 #define FSR_FTT_INVAL_FPR (6ULL << 14)
 218
 219 #define FSR_FCC1_SHIFT 11
 220 #define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
 221 #define FSR_FCC0_SHIFT 10
 222 #define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)
 223
 224 /* MMU */
 225 #define MMU_E     (1<<0)
 226 #define MMU_NF    (1<<1)
 227
 228 #define PTE_ENTRYTYPE_MASK 3
 229 #define PTE_ACCESS_MASK    0x1c
 230 #define PTE_ACCESS_SHIFT   2
 231 #define PTE_PPN_SHIFT      7
 232 #define PTE_ADDR_MASK      0xffffff00
 233
 234 #define PG_ACCESSED_BIT 5
 235 #define PG_MODIFIED_BIT 6
 236 #define PG_CACHE_BIT    7
 237
 238 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
 239 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 240 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)
 241
 242 /* 3 <= NWINDOWS <= 32. */
 243 #define MIN_NWINDOWS 3
 244 #define MAX_NWINDOWS 32
 245
 246 #ifdef TARGET_SPARC64
 247 typedef struct trap_state {
 248     uint64_t tpc;
 249     uint64_t tnpc;
 250     uint64_t tstate;
 251     uint32_t tt;
 252 } trap_state;
 253 #endif
 254 #define TARGET_INSN_START_EXTRA_WORDS 1
 255
 256 struct sparc_def_t {
 257     const char *name;
 258     target_ulong iu_version;
 259     uint32_t fpu_version;
 260     uint32_t mmu_version;
 261     uint32_t mmu_bm;
 262     uint32_t mmu_ctpr_mask;
 263     uint32_t mmu_cxr_mask;
 264     uint32_t mmu_sfsr_mask;
 265     uint32_t mmu_trcr_mask;
 266     uint32_t mxcc_version;
 267     uint32_t features;
 268     uint32_t nwindows;
 269     uint32_t maxtl;
 270 };
 271
 272 #define CPU_FEATURE_FLOAT        (1 << 0)
 273 #define CPU_FEATURE_FLOAT128     (1 << 1)
 274 #define CPU_FEATURE_SWAP         (1 << 2)
 275 #define CPU_FEATURE_MUL          (1 << 3)
 276 #define CPU_FEATURE_DIV          (1 << 4)
 277 #define CPU_FEATURE_FLUSH        (1 << 5)
 278 #define CPU_FEATURE_FSQRT        (1 << 6)
 279 #define CPU_FEATURE_FMUL         (1 << 7)
 280 #define CPU_FEATURE_VIS1         (1 << 8)
 281 #define CPU_FEATURE_VIS2         (1 << 9)
 282 #define CPU_FEATURE_FSMULD       (1 << 10)
 283 #define CPU_FEATURE_HYPV         (1 << 11)
 284 #define CPU_FEATURE_CMT          (1 << 12)
 285 #define CPU_FEATURE_GL           (1 << 13)
 286 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
 287 #define CPU_FEATURE_ASR17        (1 << 15)
 288 #define CPU_FEATURE_CACHE_CTRL   (1 << 16)
 289 #define CPU_FEATURE_POWERDOWN    (1 << 17)
 290 #define CPU_FEATURE_CASA         (1 << 18)
 291
 292 #ifndef TARGET_SPARC64
 293 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 294                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 295                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 296                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 297 #else
 298 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 299                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 300                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 301                               CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
 302                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
 303                               CPU_FEATURE_CASA)
 304 enum {
 305     mmu_us_12, // Ultrasparc < III (64 entry TLB)
 306     mmu_us_3,  // Ultrasparc III (512 entry TLB)
 307     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
 308     mmu_sun4v, // T1, T2
 309 };
 310 #endif
 311
 312 #define TTE_VALID_BIT       (1ULL << 63)
 313 #define TTE_NFO_BIT         (1ULL << 60)
 314 #define TTE_IE_BIT          (1ULL << 59)
 315 #define TTE_USED_BIT        (1ULL << 41)
 316 #define TTE_LOCKED_BIT      (1ULL <<  6)
 317 #define TTE_SIDEEFFECT_BIT  (1ULL <<  3)
 318 #define TTE_PRIV_BIT        (1ULL <<  2)
 319 #define TTE_W_OK_BIT        (1ULL <<  1)
 320 #define TTE_GLOBAL_BIT      (1ULL <<  0)
 321
 322 #define TTE_NFO_BIT_UA2005  (1ULL << 62)
 323 #define TTE_USED_BIT_UA2005 (1ULL << 47)
 324 #define TTE_LOCKED_BIT_UA2005 (1ULL <<  61)
 325 #define TTE_SIDEEFFECT_BIT_UA2005 (1ULL <<  11)
 326 #define TTE_PRIV_BIT_UA2005 (1ULL <<  8)
 327 #define TTE_W_OK_BIT_UA2005 (1ULL <<  6)
 328
 329 #define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
 330 #define TTE_IS_NFO(tte)     ((tte) & TTE_NFO_BIT)
 331 #define TTE_IS_IE(tte)      ((tte) & TTE_IE_BIT)
 332 #define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
 333 #define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
 334 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT)
 335 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005)
 336 #define TTE_IS_PRIV(tte)    ((tte) & TTE_PRIV_BIT)
 337 #define TTE_IS_W_OK(tte)    ((tte) & TTE_W_OK_BIT)
 338
 339 #define TTE_IS_NFO_UA2005(tte)     ((tte) & TTE_NFO_BIT_UA2005)
 340 #define TTE_IS_USED_UA2005(tte)    ((tte) & TTE_USED_BIT_UA2005)
 341 #define TTE_IS_LOCKED_UA2005(tte)  ((tte) & TTE_LOCKED_BIT_UA2005)
 342 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005)
 343 #define TTE_IS_PRIV_UA2005(tte)    ((tte) & TTE_PRIV_BIT_UA2005)
 344 #define TTE_IS_W_OK_UA2005(tte)    ((tte) & TTE_W_OK_BIT_UA2005)
 345
 346 #define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)
 347
 348 #define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
 349 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)
 350
 351 #define TTE_PGSIZE(tte)     (((tte) >> 61) & 3ULL)
 352 #define TTE_PGSIZE_UA2005(tte)     ((tte) & 7ULL)
 353 #define TTE_PA(tte)         ((tte) & 0x1ffffffe000ULL)
 354
 355 /* UltraSPARC T1 specific */
 356 #define TLB_UST1_IS_REAL_BIT   (1ULL << 9)  /* Real translation entry */
 357 #define TLB_UST1_IS_SUN4V_BIT  (1ULL << 10) /* sun4u/sun4v TTE format switch */
 358
 359 #define SFSR_NF_BIT         (1ULL << 24)   /* JPS1 NoFault */
 360 #define SFSR_TM_BIT         (1ULL << 15)   /* JPS1 TLB Miss */
 361 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13)   /* USIIi VA out of range (IMMU) */
 362 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12)   /* USIIi VA out of range (DMMU) */
 363 #define SFSR_FT_NFO_BIT     (1ULL << 11)   /* NFO page access */
 364 #define SFSR_FT_ILL_BIT     (1ULL << 10)   /* illegal LDA/STA ASI */
 365 #define SFSR_FT_ATOMIC_BIT  (1ULL <<  9)   /* atomic op on noncacheable area */
 366 #define SFSR_FT_NF_E_BIT    (1ULL <<  8)   /* NF access on side effect area */
 367 #define SFSR_FT_PRIV_BIT    (1ULL <<  7)   /* privilege violation */
 368 #define SFSR_PR_BIT         (1ULL <<  3)   /* privilege mode */
 369 #define SFSR_WRITE_BIT      (1ULL <<  2)   /* write access mode */
 370 #define SFSR_OW_BIT         (1ULL <<  1)   /* status overwritten */
 371 #define SFSR_VALID_BIT      (1ULL <<  0)   /* status valid */
 372
 373 #define SFSR_ASI_SHIFT      16             /* 23:16 ASI value */
 374 #define SFSR_ASI_MASK       (0xffULL << SFSR_ASI_SHIFT)
 375 #define SFSR_CT_PRIMARY     (0ULL <<  4)   /* 5:4 context type */
 376 #define SFSR_CT_SECONDARY   (1ULL <<  4)
 377 #define SFSR_CT_NUCLEUS     (2ULL <<  4)
 378 #define SFSR_CT_NOTRANS     (3ULL <<  4)
 379 #define SFSR_CT_MASK        (3ULL <<  4)
 380
 381 /* Leon3 cache control */
 382
 383 /* Cache control: emulate the behavior of cache control registers but without
 384    any effect on the emulated */
 385
 386 #define CACHE_STATE_MASK 0x3
 387 #define CACHE_DISABLED   0x0
 388 #define CACHE_FROZEN     0x1
 389 #define CACHE_ENABLED    0x3
 390
 391 /* Cache Control register fields */
 392
 393 #define CACHE_CTRL_IF (1 <<  4)  /* Instruction Cache Freeze on Interrupt */
 394 #define CACHE_CTRL_DF (1 <<  5)  /* Data Cache Freeze on Interrupt */
 395 #define CACHE_CTRL_DP (1 << 14)  /* Data cache flush pending */
 396 #define CACHE_CTRL_IP (1 << 15)  /* Instruction cache flush pending */
 397 #define CACHE_CTRL_IB (1 << 16)  /* Instruction burst fetch */
 398 #define CACHE_CTRL_FI (1 << 21)  /* Flush Instruction cache (Write only) */
 399 #define CACHE_CTRL_FD (1 << 22)  /* Flush Data cache (Write only) */
 400 #define CACHE_CTRL_DS (1 << 23)  /* Data cache snoop enable */
 401
 402 #define CONVERT_BIT(X, SRC, DST) \
 403          (SRC > DST ? (X) / (SRC / DST) & (DST) : ((X) & SRC) * (DST / SRC))
 404
 405 typedef struct SparcTLBEntry {
 406     uint64_t tag;
 407     uint64_t tte;
 408 } SparcTLBEntry;
 409
 410 struct CPUTimer
 411 {
 412     const char *name;
 413     uint32_t    frequency;
 414     uint32_t    disabled;
 415     uint64_t    disabled_mask;
 416     uint32_t    npt;
 417     uint64_t    npt_mask;
 418     int64_t     clock_offset;
 419     QEMUTimer  *qtimer;
 420 };
 421
 422 typedef struct CPUTimer CPUTimer;
 423
 424 typedef struct CPUArchState CPUSPARCState;
 425 #if defined(TARGET_SPARC64)
 426 typedef union {
 427    uint64_t mmuregs[16];
 428    struct {
 429     uint64_t tsb_tag_target;
 430     uint64_t mmu_primary_context;
 431     uint64_t mmu_secondary_context;
 432     uint64_t sfsr;
 433     uint64_t sfar;
 434     uint64_t tsb;
 435     uint64_t tag_access;
 436     uint64_t virtual_watchpoint;
 437     uint64_t physical_watchpoint;
 438     uint64_t sun4v_ctx_config[2];
 439     uint64_t sun4v_tsb_pointers[4];
 440    };
 441 } SparcV9MMU;
 442 #endif
 443 struct CPUArchState {
 444     target_ulong gregs[8]; /* general registers */
 445     target_ulong *regwptr; /* pointer to current register window */
 446     target_ulong pc;       /* program counter */
 447     target_ulong npc;      /* next program counter */
 448     target_ulong y;        /* multiply/divide register */
 449
 450     /* emulator internal flags handling */
 451     target_ulong cc_src, cc_src2;
 452     target_ulong cc_dst;
 453     uint32_t cc_op;
 454
 455     target_ulong cond; /* conditional branch result (XXX: save it in a
 456                           temporary register when possible) */
 457
 458     uint32_t psr;      /* processor state register */
 459     target_ulong fsr;      /* FPU state register */
 460     CPU_DoubleU fpr[TARGET_DPREGS];  /* floating point registers */
 461     uint32_t cwp;      /* index of current register window (extracted
 462                           from PSR) */
 463 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
 464     uint32_t wim;      /* window invalid mask */
 465 #endif
 466     target_ulong tbr;  /* trap base register */
 467 #if !defined(TARGET_SPARC64)
 468     int      psrs;     /* supervisor mode (extracted from PSR) */
 469     int      psrps;    /* previous supervisor mode */
 470     int      psret;    /* enable traps */
 471 #endif
 472     uint32_t psrpil;   /* interrupt blocking level */
 473     uint32_t pil_in;   /* incoming interrupt level bitmap */
 474 #if !defined(TARGET_SPARC64)
 475     int      psref;    /* enable fpu */
 476 #endif
 477     int interrupt_index;
 478     /* NOTE: we allow 8 more registers to handle wrapping */
 479     target_ulong regbase[MAX_NWINDOWS * 16 + 8];
 480
 481     /* Fields up to this point are cleared by a CPU reset */
 482     struct {} end_reset_fields;
 483
 484     /* Fields from here on are preserved across CPU reset. */
 485     target_ulong version;
 486     uint32_t nwindows;
 487
 488     /* MMU regs */
 489 #if defined(TARGET_SPARC64)
 490     uint64_t lsu;
 491 #define DMMU_E 0x8
 492 #define IMMU_E 0x4
 493     SparcV9MMU immu;
 494     SparcV9MMU dmmu;
 495     SparcTLBEntry itlb[64];
 496     SparcTLBEntry dtlb[64];
 497     uint32_t mmu_version;
 498 #else
 499     uint32_t mmuregs[32];
 500     uint64_t mxccdata[4];
 501     uint64_t mxccregs[8];
 502     uint32_t mmubpctrv, mmubpctrc, mmubpctrs;
 503     uint64_t mmubpaction;
 504     uint64_t mmubpregs[4];
 505     uint64_t prom_addr;
 506 #endif
 507     /* temporary float registers */
 508     float128 qt0, qt1;
 509     float_status fp_status;
 510 #if defined(TARGET_SPARC64)
 511 #define MAXTL_MAX 8
 512 #define MAXTL_MASK (MAXTL_MAX - 1)
 513     trap_state ts[MAXTL_MAX];
 514     uint32_t xcc;               /* Extended integer condition codes */
 515     uint32_t asi;
 516     uint32_t pstate;
 517     uint32_t tl;
 518     uint32_t maxtl;
 519     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
 520     uint64_t agregs[8]; /* alternate general registers */
 521     uint64_t bgregs[8]; /* backup for normal global registers */
 522     uint64_t igregs[8]; /* interrupt general registers */
 523     uint64_t mgregs[8]; /* mmu general registers */
 524     uint64_t glregs[8 * MAXTL_MAX];
 525     uint64_t fprs;
 526     uint64_t tick_cmpr, stick_cmpr;
 527     CPUTimer *tick, *stick;
 528 #define TICK_NPT_MASK        0x8000000000000000ULL
 529 #define TICK_INT_DIS         0x8000000000000000ULL
 530     uint64_t gsr;
 531     uint32_t gl; // UA2005
 532     /* UA 2005 hyperprivileged registers */
 533     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
 534     uint64_t scratch[8];
 535     CPUTimer *hstick; // UA 2005
 536     /* Interrupt vector registers */
 537     uint64_t ivec_status;
 538     uint64_t ivec_data[3];
 539     uint32_t softint;
 540 #define SOFTINT_TIMER   1
 541 #define SOFTINT_STIMER  (1 << 16)
 542 #define SOFTINT_INTRMASK (0xFFFE)
 543 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
 544 #endif
 545     sparc_def_t def;
 546
 547     void *irq_manager;
 548     void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno);
 549
 550     /* Leon3 cache control */
 551     uint32_t cache_control;
 552 };
 553
 554 /**
 555  * SPARCCPU:
 556  * @env: #CPUSPARCState
 557  *
 558  * A SPARC CPU.
 559  */
 560 struct ArchCPU {
 561     /*< private >*/
 562     CPUState parent_obj;
 563     /*< public >*/
 564
 565     CPUNegativeOffsetState neg;
 566     CPUSPARCState env;
 567 };
 568
 569
 570 #ifndef CONFIG_USER_ONLY
 571 extern const VMStateDescription vmstate_sparc_cpu;
 572 #endif
 573
 574 void sparc_cpu_do_interrupt(CPUState *cpu);
 575 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 576 int sparc_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
 577 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 578 G_NORETURN void sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
 579                                               MMUAccessType access_type,
 580                                               int mmu_idx,
 581                                               uintptr_t retaddr);
 582 G_NORETURN void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t);
 583
 584 #ifndef NO_CPU_IO_DEFS
 585 /* cpu_init.c */
 586 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 587 void sparc_cpu_list(void);
 588 /* mmu_helper.c */
 589 bool sparc_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
 590                         MMUAccessType access_type, int mmu_idx,
 591                         bool probe, uintptr_t retaddr);
 592 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 593 void dump_mmu(CPUSPARCState *env);
 594
 595 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 596 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr,
 597                               uint8_t *buf, int len, bool is_write);
 598 #endif
 599
 600
 601 /* translate.c */
 602 void sparc_tcg_init(void);
 603
 604 /* cpu-exec.c */
 605
 606 /* win_helper.c */
 607 target_ulong cpu_get_psr(CPUSPARCState *env1);
 608 void cpu_put_psr(CPUSPARCState *env1, target_ulong val);
 609 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val);
 610 #ifdef TARGET_SPARC64
 611 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate);
 612 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl);
 613 #endif
 614 int cpu_cwp_inc(CPUSPARCState *env1, int cwp);
 615 int cpu_cwp_dec(CPUSPARCState *env1, int cwp);
 616 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
 617
 618 /* sun4m.c, sun4u.c */
 619 void cpu_check_irqs(CPUSPARCState *env);
 620
 621 #if defined (TARGET_SPARC64)
 622
 623 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
 624 {
 625     return (x & mask) == (y & mask);
 626 }
 627
 628 #define MMU_CONTEXT_BITS 13
 629 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)
 630
 631 static inline int tlb_compare_context(const SparcTLBEntry *tlb,
 632                                       uint64_t context)
 633 {
 634     return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
 635 }
 636
 637 #endif
 638 #endif
 639
 640 /* cpu-exec.c */
 641 #if !defined(CONFIG_USER_ONLY)
 642 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
 643                                      vaddr addr, unsigned size,
 644                                      MMUAccessType access_type,
 645                                      int mmu_idx, MemTxAttrs attrs,
 646                                      MemTxResult response, uintptr_t retaddr);
 647 #if defined(TARGET_SPARC64)
 648 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr,
 649                                            int mmu_idx);
 650 #endif
 651 #endif
 652
 653 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU
 654 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX
 655 #define CPU_RESOLVING_TYPE TYPE_SPARC_CPU
 656
 657 #define cpu_list sparc_cpu_list
 658
 659 /* MMU modes definitions */
 660 #if defined (TARGET_SPARC64)
 661 #define MMU_USER_IDX   0
 662 #define MMU_USER_SECONDARY_IDX   1
 663 #define MMU_KERNEL_IDX 2
 664 #define MMU_KERNEL_SECONDARY_IDX 3
 665 #define MMU_NUCLEUS_IDX 4
 666 #define MMU_PHYS_IDX   5
 667 #else
 668 #define MMU_USER_IDX   0
 669 #define MMU_KERNEL_IDX 1
 670 #define MMU_PHYS_IDX   2
 671 #endif
 672
 673 #if defined (TARGET_SPARC64)
 674 static inline int cpu_has_hypervisor(CPUSPARCState *env1)
 675 {
 676     return env1->def.features & CPU_FEATURE_HYPV;
 677 }
 678
 679 static inline int cpu_hypervisor_mode(CPUSPARCState *env1)
 680 {
 681     return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
 682 }
 683
 684 static inline int cpu_supervisor_mode(CPUSPARCState *env1)
 685 {
 686     return env1->pstate & PS_PRIV;
 687 }
 688 #else
 689 static inline int cpu_supervisor_mode(CPUSPARCState *env1)
 690 {
 691     return env1->psrs;
 692 }
 693 #endif
 694
 695 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
 696 {
 697 #if defined(CONFIG_USER_ONLY)
 698     return MMU_USER_IDX;
 699 #elif !defined(TARGET_SPARC64)
 700     if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
 701         return MMU_PHYS_IDX;
 702     } else {
 703         return env->psrs;
 704     }
 705 #else
 706     /* IMMU or DMMU disabled.  */
 707     if (ifetch
 708         ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0
 709         : (env->lsu & DMMU_E) == 0) {
 710         return MMU_PHYS_IDX;
 711     } else if (cpu_hypervisor_mode(env)) {
 712         return MMU_PHYS_IDX;
 713     } else if (env->tl > 0) {
 714         return MMU_NUCLEUS_IDX;
 715     } else if (cpu_supervisor_mode(env)) {
 716         return MMU_KERNEL_IDX;
 717     } else {
 718         return MMU_USER_IDX;
 719     }
 720 #endif
 721 }
 722
 723 static inline int cpu_interrupts_enabled(CPUSPARCState *env1)
 724 {
 725 #if !defined (TARGET_SPARC64)
 726     if (env1->psret != 0)
 727         return 1;
 728 #else
 729     if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) {
 730         return 1;
 731     }
 732 #endif
 733
 734     return 0;
 735 }
 736
 737 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil)
 738 {
 739 #if !defined(TARGET_SPARC64)
 740     /* level 15 is non-maskable on sparc v8 */
 741     return pil == 15 || pil > env1->psrpil;
 742 #else
 743     return pil > env1->psrpil;
 744 #endif
 745 }
 746
 747 #include "exec/cpu-all.h"
 748
 749 #ifdef TARGET_SPARC64
 750 /* sun4u.c */
 751 void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
 752 uint64_t cpu_tick_get_count(CPUTimer *timer);
 753 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
 754 trap_state* cpu_tsptr(CPUSPARCState* env);
 755 #endif
 756
 757 #define TB_FLAG_MMU_MASK     7
 758 #define TB_FLAG_FPU_ENABLED  (1 << 4)
 759 #define TB_FLAG_AM_ENABLED   (1 << 5)
 760 #define TB_FLAG_SUPER        (1 << 6)
 761 #define TB_FLAG_HYPER        (1 << 7)
 762 #define TB_FLAG_ASI_SHIFT    24
 763
 764 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
 765                                         target_ulong *cs_base, uint32_t *pflags)
 766 {
 767     uint32_t flags;
 768     *pc = env->pc;
 769     *cs_base = env->npc;
 770     flags = cpu_mmu_index(env, false);
 771 #ifndef CONFIG_USER_ONLY
 772     if (cpu_supervisor_mode(env)) {
 773         flags |= TB_FLAG_SUPER;
 774     }
 775 #endif
 776 #ifdef TARGET_SPARC64
 777 #ifndef CONFIG_USER_ONLY
 778     if (cpu_hypervisor_mode(env)) {
 779         flags |= TB_FLAG_HYPER;
 780     }
 781 #endif
 782     if (env->pstate & PS_AM) {
 783         flags |= TB_FLAG_AM_ENABLED;
 784     }
 785     if ((env->def.features & CPU_FEATURE_FLOAT)
 786         && (env->pstate & PS_PEF)
 787         && (env->fprs & FPRS_FEF)) {
 788         flags |= TB_FLAG_FPU_ENABLED;
 789     }
 790     flags |= env->asi << TB_FLAG_ASI_SHIFT;
 791 #else
 792     if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) {
 793         flags |= TB_FLAG_FPU_ENABLED;
 794     }
 795 #endif
 796     *pflags = flags;
 797 }
 798
 799 static inline bool tb_fpu_enabled(int tb_flags)
 800 {
 801 #if defined(CONFIG_USER_ONLY)
 802     return true;
 803 #else
 804     return tb_flags & TB_FLAG_FPU_ENABLED;
 805 #endif
 806 }
 807
 808 static inline bool tb_am_enabled(int tb_flags)
 809 {
 810 #ifndef TARGET_SPARC64
 811     return false;
 812 #else
 813     return tb_flags & TB_FLAG_AM_ENABLED;
 814 #endif
 815 }
 816
 817 #ifdef TARGET_SPARC64
 818 /* win_helper.c */
 819 target_ulong cpu_get_ccr(CPUSPARCState *env1);
 820 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
 821 target_ulong cpu_get_cwp64(CPUSPARCState *env1);
 822 void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
 823
 824 static inline uint64_t sparc64_tstate(CPUSPARCState *env)
 825 {
 826     uint64_t tstate = (cpu_get_ccr(env) << 32) |
 827         ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
 828         cpu_get_cwp64(env);
 829
 830     if (env->def.features & CPU_FEATURE_GL) {
 831         tstate |= (env->gl & 7ULL) << 40;
 832     }
 833     return tstate;
 834 }
 835 #endif
 836
 837 #endif