target/sparc/cpu.h

   1 #ifndef SPARC_CPU_H
   2 #define SPARC_CPU_H
   3
   4 #include "qemu-common.h"
   5 #include "qemu/bswap.h"
   6 #include "cpu-qom.h"
   7
   8 #define ALIGNED_ONLY
   9
  10 #if !defined(TARGET_SPARC64)
  11 #define TARGET_LONG_BITS 32
  12 #define TARGET_DPREGS 16
  13 #define TARGET_PAGE_BITS 12 /* 4k */
  14 #define TARGET_PHYS_ADDR_SPACE_BITS 36
  15 #define TARGET_VIRT_ADDR_SPACE_BITS 32
  16 #else
  17 #define TARGET_LONG_BITS 64
  18 #define TARGET_DPREGS 32
  19 #define TARGET_PAGE_BITS 13 /* 8k */
  20 #define TARGET_PHYS_ADDR_SPACE_BITS 41
  21 # ifdef TARGET_ABI32
  22 #  define TARGET_VIRT_ADDR_SPACE_BITS 32
  23 # else
  24 #  define TARGET_VIRT_ADDR_SPACE_BITS 44
  25 # endif
  26 #endif
  27
  28 #define CPUArchState struct CPUSPARCState
  29
  30 #include "exec/cpu-defs.h"
  31
  32 #include "fpu/softfloat.h"
  33
  34 /*#define EXCP_INTERRUPT 0x100*/
  35
  36 /* trap definitions */
  37 #ifndef TARGET_SPARC64
  38 #define TT_TFAULT   0x01
  39 #define TT_ILL_INSN 0x02
  40 #define TT_PRIV_INSN 0x03
  41 #define TT_NFPU_INSN 0x04
  42 #define TT_WIN_OVF  0x05
  43 #define TT_WIN_UNF  0x06
  44 #define TT_UNALIGNED 0x07
  45 #define TT_FP_EXCP  0x08
  46 #define TT_DFAULT   0x09
  47 #define TT_TOVF     0x0a
  48 #define TT_EXTINT   0x10
  49 #define TT_CODE_ACCESS 0x21
  50 #define TT_UNIMP_FLUSH 0x25
  51 #define TT_DATA_ACCESS 0x29
  52 #define TT_DIV_ZERO 0x2a
  53 #define TT_NCP_INSN 0x24
  54 #define TT_TRAP     0x80
  55 #else
  56 #define TT_POWER_ON_RESET 0x01
  57 #define TT_TFAULT   0x08
  58 #define TT_CODE_ACCESS 0x0a
  59 #define TT_ILL_INSN 0x10
  60 #define TT_UNIMP_FLUSH TT_ILL_INSN
  61 #define TT_PRIV_INSN 0x11
  62 #define TT_NFPU_INSN 0x20
  63 #define TT_FP_EXCP  0x21
  64 #define TT_TOVF     0x23
  65 #define TT_CLRWIN   0x24
  66 #define TT_DIV_ZERO 0x28
  67 #define TT_DFAULT   0x30
  68 #define TT_DATA_ACCESS 0x32
  69 #define TT_UNALIGNED 0x34
  70 #define TT_PRIV_ACT 0x37
  71 #define TT_INSN_REAL_TRANSLATION_MISS 0x3e
  72 #define TT_DATA_REAL_TRANSLATION_MISS 0x3f
  73 #define TT_EXTINT   0x40
  74 #define TT_IVEC     0x60
  75 #define TT_TMISS    0x64
  76 #define TT_DMISS    0x68
  77 #define TT_DPROT    0x6c
  78 #define TT_SPILL    0x80
  79 #define TT_FILL     0xc0
  80 #define TT_WOTHER   (1 << 5)
  81 #define TT_TRAP     0x100
  82 #define TT_HTRAP    0x180
  83 #endif
  84
  85 #define PSR_NEG_SHIFT 23
  86 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
  87 #define PSR_ZERO_SHIFT 22
  88 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
  89 #define PSR_OVF_SHIFT 21
  90 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
  91 #define PSR_CARRY_SHIFT 20
  92 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
  93 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
  94 #if !defined(TARGET_SPARC64)
  95 #define PSR_EF    (1<<12)
  96 #define PSR_PIL   0xf00
  97 #define PSR_S     (1<<7)
  98 #define PSR_PS    (1<<6)
  99 #define PSR_ET    (1<<5)
 100 #define PSR_CWP   0x1f
 101 #endif
 102
 103 #define CC_SRC (env->cc_src)
 104 #define CC_SRC2 (env->cc_src2)
 105 #define CC_DST (env->cc_dst)
 106 #define CC_OP  (env->cc_op)
 107
 108 /* Even though lazy evaluation of CPU condition codes tends to be less
 109  * important on RISC systems where condition codes are only updated
 110  * when explicitly requested, SPARC uses it to update 32-bit and 64-bit
 111  * condition codes.
 112  */
 113 enum {
 114     CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
 115     CC_OP_FLAGS,   /* all cc are back in status register */
 116     CC_OP_DIV,     /* modify N, Z and V, C = 0*/
 117     CC_OP_ADD,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 118     CC_OP_ADDX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 119     CC_OP_TADD,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 120     CC_OP_TADDTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 121     CC_OP_SUB,     /* modify all flags, CC_DST = res, CC_SRC = src1 */
 122     CC_OP_SUBX,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 123     CC_OP_TSUB,    /* modify all flags, CC_DST = res, CC_SRC = src1 */
 124     CC_OP_TSUBTV,  /* modify all flags except V, CC_DST = res, CC_SRC = src1 */
 125     CC_OP_LOGIC,   /* modify N and Z, C = V = 0, CC_DST = res */
 126     CC_OP_NB,
 127 };
 128
 129 /* Trap base register */
 130 #define TBR_BASE_MASK 0xfffff000
 131
 132 #if defined(TARGET_SPARC64)
 133 #define PS_TCT   (1<<12) /* UA2007, impl.dep. trap on control transfer */
 134 #define PS_IG    (1<<11) /* v9, zero on UA2007 */
 135 #define PS_MG    (1<<10) /* v9, zero on UA2007 */
 136 #define PS_CLE   (1<<9) /* UA2007 */
 137 #define PS_TLE   (1<<8) /* UA2007 */
 138 #define PS_RMO   (1<<7)
 139 #define PS_RED   (1<<5) /* v9, zero on UA2007 */
 140 #define PS_PEF   (1<<4) /* enable fpu */
 141 #define PS_AM    (1<<3) /* address mask */
 142 #define PS_PRIV  (1<<2)
 143 #define PS_IE    (1<<1)
 144 #define PS_AG    (1<<0) /* v9, zero on UA2007 */
 145
 146 #define FPRS_FEF (1<<2)
 147
 148 #define HS_PRIV  (1<<2)
 149 #endif
 150
 151 /* Fcc */
 152 #define FSR_RD1        (1ULL << 31)
 153 #define FSR_RD0        (1ULL << 30)
 154 #define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
 155 #define FSR_RD_NEAREST 0
 156 #define FSR_RD_ZERO    FSR_RD0
 157 #define FSR_RD_POS     FSR_RD1
 158 #define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)
 159
 160 #define FSR_NVM   (1ULL << 27)
 161 #define FSR_OFM   (1ULL << 26)
 162 #define FSR_UFM   (1ULL << 25)
 163 #define FSR_DZM   (1ULL << 24)
 164 #define FSR_NXM   (1ULL << 23)
 165 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
 166
 167 #define FSR_NVA   (1ULL << 9)
 168 #define FSR_OFA   (1ULL << 8)
 169 #define FSR_UFA   (1ULL << 7)
 170 #define FSR_DZA   (1ULL << 6)
 171 #define FSR_NXA   (1ULL << 5)
 172 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
 173
 174 #define FSR_NVC   (1ULL << 4)
 175 #define FSR_OFC   (1ULL << 3)
 176 #define FSR_UFC   (1ULL << 2)
 177 #define FSR_DZC   (1ULL << 1)
 178 #define FSR_NXC   (1ULL << 0)
 179 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
 180
 181 #define FSR_FTT2   (1ULL << 16)
 182 #define FSR_FTT1   (1ULL << 15)
 183 #define FSR_FTT0   (1ULL << 14)
 184 //gcc warns about constant overflow for ~FSR_FTT_MASK
 185 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
 186 #ifdef TARGET_SPARC64
 187 #define FSR_FTT_NMASK      0xfffffffffffe3fffULL
 188 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
 189 #define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
 190 #define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
 191 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
 192 #else
 193 #define FSR_FTT_NMASK      0xfffe3fffULL
 194 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
 195 #define FSR_LDFSR_OLDMASK  0x000fc000ULL
 196 #endif
 197 #define FSR_LDFSR_MASK     0xcfc00fffULL
 198 #define FSR_FTT_IEEE_EXCP (1ULL << 14)
 199 #define FSR_FTT_UNIMPFPOP (3ULL << 14)
 200 #define FSR_FTT_SEQ_ERROR (4ULL << 14)
 201 #define FSR_FTT_INVAL_FPR (6ULL << 14)
 202
 203 #define FSR_FCC1_SHIFT 11
 204 #define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
 205 #define FSR_FCC0_SHIFT 10
 206 #define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)
 207
 208 /* MMU */
 209 #define MMU_E     (1<<0)
 210 #define MMU_NF    (1<<1)
 211
 212 #define PTE_ENTRYTYPE_MASK 3
 213 #define PTE_ACCESS_MASK    0x1c
 214 #define PTE_ACCESS_SHIFT   2
 215 #define PTE_PPN_SHIFT      7
 216 #define PTE_ADDR_MASK      0xffffff00
 217
 218 #define PG_ACCESSED_BIT 5
 219 #define PG_MODIFIED_BIT 6
 220 #define PG_CACHE_BIT    7
 221
 222 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
 223 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 224 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)
 225
 226 /* 3 <= NWINDOWS <= 32. */
 227 #define MIN_NWINDOWS 3
 228 #define MAX_NWINDOWS 32
 229
 230 #if !defined(TARGET_SPARC64)
 231 #define NB_MMU_MODES 3
 232 #else
 233 #define NB_MMU_MODES 6
 234 typedef struct trap_state {
 235     uint64_t tpc;
 236     uint64_t tnpc;
 237     uint64_t tstate;
 238     uint32_t tt;
 239 } trap_state;
 240 #endif
 241 #define TARGET_INSN_START_EXTRA_WORDS 1
 242
 243 struct sparc_def_t {
 244     const char *name;
 245     target_ulong iu_version;
 246     uint32_t fpu_version;
 247     uint32_t mmu_version;
 248     uint32_t mmu_bm;
 249     uint32_t mmu_ctpr_mask;
 250     uint32_t mmu_cxr_mask;
 251     uint32_t mmu_sfsr_mask;
 252     uint32_t mmu_trcr_mask;
 253     uint32_t mxcc_version;
 254     uint32_t features;
 255     uint32_t nwindows;
 256     uint32_t maxtl;
 257 };
 258
 259 #define CPU_FEATURE_FLOAT        (1 << 0)
 260 #define CPU_FEATURE_FLOAT128     (1 << 1)
 261 #define CPU_FEATURE_SWAP         (1 << 2)
 262 #define CPU_FEATURE_MUL          (1 << 3)
 263 #define CPU_FEATURE_DIV          (1 << 4)
 264 #define CPU_FEATURE_FLUSH        (1 << 5)
 265 #define CPU_FEATURE_FSQRT        (1 << 6)
 266 #define CPU_FEATURE_FMUL         (1 << 7)
 267 #define CPU_FEATURE_VIS1         (1 << 8)
 268 #define CPU_FEATURE_VIS2         (1 << 9)
 269 #define CPU_FEATURE_FSMULD       (1 << 10)
 270 #define CPU_FEATURE_HYPV         (1 << 11)
 271 #define CPU_FEATURE_CMT          (1 << 12)
 272 #define CPU_FEATURE_GL           (1 << 13)
 273 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
 274 #define CPU_FEATURE_ASR17        (1 << 15)
 275 #define CPU_FEATURE_CACHE_CTRL   (1 << 16)
 276 #define CPU_FEATURE_POWERDOWN    (1 << 17)
 277 #define CPU_FEATURE_CASA         (1 << 18)
 278
 279 #ifndef TARGET_SPARC64
 280 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 281                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 282                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 283                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 284 #else
 285 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 286                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 287                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 288                               CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
 289                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
 290                               CPU_FEATURE_CASA)
 291 enum {
 292     mmu_us_12, // Ultrasparc < III (64 entry TLB)
 293     mmu_us_3,  // Ultrasparc III (512 entry TLB)
 294     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
 295     mmu_sun4v, // T1, T2
 296 };
 297 #endif
 298
 299 #define TTE_VALID_BIT       (1ULL << 63)
 300 #define TTE_NFO_BIT         (1ULL << 60)
 301 #define TTE_USED_BIT        (1ULL << 41)
 302 #define TTE_LOCKED_BIT      (1ULL <<  6)
 303 #define TTE_SIDEEFFECT_BIT  (1ULL <<  3)
 304 #define TTE_PRIV_BIT        (1ULL <<  2)
 305 #define TTE_W_OK_BIT        (1ULL <<  1)
 306 #define TTE_GLOBAL_BIT      (1ULL <<  0)
 307
 308 #define TTE_NFO_BIT_UA2005  (1ULL << 62)
 309 #define TTE_USED_BIT_UA2005 (1ULL << 47)
 310 #define TTE_LOCKED_BIT_UA2005 (1ULL <<  61)
 311 #define TTE_SIDEEFFECT_BIT_UA2005 (1ULL <<  11)
 312 #define TTE_PRIV_BIT_UA2005 (1ULL <<  8)
 313 #define TTE_W_OK_BIT_UA2005 (1ULL <<  6)
 314
 315 #define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
 316 #define TTE_IS_NFO(tte)     ((tte) & TTE_NFO_BIT)
 317 #define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
 318 #define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
 319 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT)
 320 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005)
 321 #define TTE_IS_PRIV(tte)    ((tte) & TTE_PRIV_BIT)
 322 #define TTE_IS_W_OK(tte)    ((tte) & TTE_W_OK_BIT)
 323
 324 #define TTE_IS_NFO_UA2005(tte)     ((tte) & TTE_NFO_BIT_UA2005)
 325 #define TTE_IS_USED_UA2005(tte)    ((tte) & TTE_USED_BIT_UA2005)
 326 #define TTE_IS_LOCKED_UA2005(tte)  ((tte) & TTE_LOCKED_BIT_UA2005)
 327 #define TTE_IS_SIDEEFFECT_UA2005(tte) ((tte) & TTE_SIDEEFFECT_BIT_UA2005)
 328 #define TTE_IS_PRIV_UA2005(tte)    ((tte) & TTE_PRIV_BIT_UA2005)
 329 #define TTE_IS_W_OK_UA2005(tte)    ((tte) & TTE_W_OK_BIT_UA2005)
 330
 331 #define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)
 332
 333 #define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
 334 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)
 335
 336 #define TTE_PGSIZE(tte)     (((tte) >> 61) & 3ULL)
 337 #define TTE_PGSIZE_UA2005(tte)     ((tte) & 7ULL)
 338 #define TTE_PA(tte)         ((tte) & 0x1ffffffe000ULL)
 339
 340 /* UltraSPARC T1 specific */
 341 #define TLB_UST1_IS_REAL_BIT   (1ULL << 9)  /* Real translation entry */
 342 #define TLB_UST1_IS_SUN4V_BIT  (1ULL << 10) /* sun4u/sun4v TTE format switch */
 343
 344 #define SFSR_NF_BIT         (1ULL << 24)   /* JPS1 NoFault */
 345 #define SFSR_TM_BIT         (1ULL << 15)   /* JPS1 TLB Miss */
 346 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13)   /* USIIi VA out of range (IMMU) */
 347 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12)   /* USIIi VA out of range (DMMU) */
 348 #define SFSR_FT_NFO_BIT     (1ULL << 11)   /* NFO page access */
 349 #define SFSR_FT_ILL_BIT     (1ULL << 10)   /* illegal LDA/STA ASI */
 350 #define SFSR_FT_ATOMIC_BIT  (1ULL <<  9)   /* atomic op on noncacheable area */
 351 #define SFSR_FT_NF_E_BIT    (1ULL <<  8)   /* NF access on side effect area */
 352 #define SFSR_FT_PRIV_BIT    (1ULL <<  7)   /* privilege violation */
 353 #define SFSR_PR_BIT         (1ULL <<  3)   /* privilege mode */
 354 #define SFSR_WRITE_BIT      (1ULL <<  2)   /* write access mode */
 355 #define SFSR_OW_BIT         (1ULL <<  1)   /* status overwritten */
 356 #define SFSR_VALID_BIT      (1ULL <<  0)   /* status valid */
 357
 358 #define SFSR_ASI_SHIFT      16             /* 23:16 ASI value */
 359 #define SFSR_ASI_MASK       (0xffULL << SFSR_ASI_SHIFT)
 360 #define SFSR_CT_PRIMARY     (0ULL <<  4)   /* 5:4 context type */
 361 #define SFSR_CT_SECONDARY   (1ULL <<  4)
 362 #define SFSR_CT_NUCLEUS     (2ULL <<  4)
 363 #define SFSR_CT_NOTRANS     (3ULL <<  4)
 364 #define SFSR_CT_MASK        (3ULL <<  4)
 365
 366 /* Leon3 cache control */
 367
 368 /* Cache control: emulate the behavior of cache control registers but without
 369    any effect on the emulated */
 370
 371 #define CACHE_STATE_MASK 0x3
 372 #define CACHE_DISABLED   0x0
 373 #define CACHE_FROZEN     0x1
 374 #define CACHE_ENABLED    0x3
 375
 376 /* Cache Control register fields */
 377
 378 #define CACHE_CTRL_IF (1 <<  4)  /* Instruction Cache Freeze on Interrupt */
 379 #define CACHE_CTRL_DF (1 <<  5)  /* Data Cache Freeze on Interrupt */
 380 #define CACHE_CTRL_DP (1 << 14)  /* Data cache flush pending */
 381 #define CACHE_CTRL_IP (1 << 15)  /* Instruction cache flush pending */
 382 #define CACHE_CTRL_IB (1 << 16)  /* Instruction burst fetch */
 383 #define CACHE_CTRL_FI (1 << 21)  /* Flush Instruction cache (Write only) */
 384 #define CACHE_CTRL_FD (1 << 22)  /* Flush Data cache (Write only) */
 385 #define CACHE_CTRL_DS (1 << 23)  /* Data cache snoop enable */
 386
 387 #define CONVERT_BIT(X, SRC, DST) \
 388          (SRC > DST ? (X) / (SRC / DST) & (DST) : ((X) & SRC) * (DST / SRC))
 389
 390 typedef struct SparcTLBEntry {
 391     uint64_t tag;
 392     uint64_t tte;
 393 } SparcTLBEntry;
 394
 395 struct CPUTimer
 396 {
 397     const char *name;
 398     uint32_t    frequency;
 399     uint32_t    disabled;
 400     uint64_t    disabled_mask;
 401     uint32_t    npt;
 402     uint64_t    npt_mask;
 403     int64_t     clock_offset;
 404     QEMUTimer  *qtimer;
 405 };
 406
 407 typedef struct CPUTimer CPUTimer;
 408
 409 typedef struct CPUSPARCState CPUSPARCState;
 410 #if defined(TARGET_SPARC64)
 411 typedef union {
 412    uint64_t mmuregs[16];
 413    struct {
 414     uint64_t tsb_tag_target;
 415     uint64_t mmu_primary_context;
 416     uint64_t mmu_secondary_context;
 417     uint64_t sfsr;
 418     uint64_t sfar;
 419     uint64_t tsb;
 420     uint64_t tag_access;
 421     uint64_t virtual_watchpoint;
 422     uint64_t physical_watchpoint;
 423     uint64_t sun4v_ctx_config[2];
 424     uint64_t sun4v_tsb_pointers[4];
 425    };
 426 } SparcV9MMU;
 427 #endif
 428 struct CPUSPARCState {
 429     target_ulong gregs[8]; /* general registers */
 430     target_ulong *regwptr; /* pointer to current register window */
 431     target_ulong pc;       /* program counter */
 432     target_ulong npc;      /* next program counter */
 433     target_ulong y;        /* multiply/divide register */
 434
 435     /* emulator internal flags handling */
 436     target_ulong cc_src, cc_src2;
 437     target_ulong cc_dst;
 438     uint32_t cc_op;
 439
 440     target_ulong cond; /* conditional branch result (XXX: save it in a
 441                           temporary register when possible) */
 442
 443     uint32_t psr;      /* processor state register */
 444     target_ulong fsr;      /* FPU state register */
 445     CPU_DoubleU fpr[TARGET_DPREGS];  /* floating point registers */
 446     uint32_t cwp;      /* index of current register window (extracted
 447                           from PSR) */
 448 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
 449     uint32_t wim;      /* window invalid mask */
 450 #endif
 451     target_ulong tbr;  /* trap base register */
 452 #if !defined(TARGET_SPARC64)
 453     int      psrs;     /* supervisor mode (extracted from PSR) */
 454     int      psrps;    /* previous supervisor mode */
 455     int      psret;    /* enable traps */
 456 #endif
 457     uint32_t psrpil;   /* interrupt blocking level */
 458     uint32_t pil_in;   /* incoming interrupt level bitmap */
 459 #if !defined(TARGET_SPARC64)
 460     int      psref;    /* enable fpu */
 461 #endif
 462     int interrupt_index;
 463     /* NOTE: we allow 8 more registers to handle wrapping */
 464     target_ulong regbase[MAX_NWINDOWS * 16 + 8];
 465
 466     /* Fields up to this point are cleared by a CPU reset */
 467     struct {} end_reset_fields;
 468
 469     CPU_COMMON
 470
 471     /* Fields from here on are preserved across CPU reset. */
 472     target_ulong version;
 473     uint32_t nwindows;
 474
 475     /* MMU regs */
 476 #if defined(TARGET_SPARC64)
 477     uint64_t lsu;
 478 #define DMMU_E 0x8
 479 #define IMMU_E 0x4
 480     SparcV9MMU immu;
 481     SparcV9MMU dmmu;
 482     SparcTLBEntry itlb[64];
 483     SparcTLBEntry dtlb[64];
 484     uint32_t mmu_version;
 485 #else
 486     uint32_t mmuregs[32];
 487     uint64_t mxccdata[4];
 488     uint64_t mxccregs[8];
 489     uint32_t mmubpctrv, mmubpctrc, mmubpctrs;
 490     uint64_t mmubpaction;
 491     uint64_t mmubpregs[4];
 492     uint64_t prom_addr;
 493 #endif
 494     /* temporary float registers */
 495     float128 qt0, qt1;
 496     float_status fp_status;
 497 #if defined(TARGET_SPARC64)
 498 #define MAXTL_MAX 8
 499 #define MAXTL_MASK (MAXTL_MAX - 1)
 500     trap_state ts[MAXTL_MAX];
 501     uint32_t xcc;               /* Extended integer condition codes */
 502     uint32_t asi;
 503     uint32_t pstate;
 504     uint32_t tl;
 505     uint32_t maxtl;
 506     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
 507     uint64_t agregs[8]; /* alternate general registers */
 508     uint64_t bgregs[8]; /* backup for normal global registers */
 509     uint64_t igregs[8]; /* interrupt general registers */
 510     uint64_t mgregs[8]; /* mmu general registers */
 511     uint64_t glregs[8 * MAXTL_MAX];
 512     uint64_t fprs;
 513     uint64_t tick_cmpr, stick_cmpr;
 514     CPUTimer *tick, *stick;
 515 #define TICK_NPT_MASK        0x8000000000000000ULL
 516 #define TICK_INT_DIS         0x8000000000000000ULL
 517     uint64_t gsr;
 518     uint32_t gl; // UA2005
 519     /* UA 2005 hyperprivileged registers */
 520     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
 521     uint64_t scratch[8];
 522     CPUTimer *hstick; // UA 2005
 523     /* Interrupt vector registers */
 524     uint64_t ivec_status;
 525     uint64_t ivec_data[3];
 526     uint32_t softint;
 527 #define SOFTINT_TIMER   1
 528 #define SOFTINT_STIMER  (1 << 16)
 529 #define SOFTINT_INTRMASK (0xFFFE)
 530 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
 531 #endif
 532     sparc_def_t def;
 533
 534     void *irq_manager;
 535     void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno);
 536
 537     /* Leon3 cache control */
 538     uint32_t cache_control;
 539 };
 540
 541 /**
 542  * SPARCCPU:
 543  * @env: #CPUSPARCState
 544  *
 545  * A SPARC CPU.
 546  */
 547 struct SPARCCPU {
 548     /*< private >*/
 549     CPUState parent_obj;
 550     /*< public >*/
 551
 552     CPUSPARCState env;
 553 };
 554
 555 static inline SPARCCPU *sparc_env_get_cpu(CPUSPARCState *env)
 556 {
 557     return container_of(env, SPARCCPU, env);
 558 }
 559
 560 #define ENV_GET_CPU(e) CPU(sparc_env_get_cpu(e))
 561
 562 #define ENV_OFFSET offsetof(SPARCCPU, env)
 563
 564 #ifndef CONFIG_USER_ONLY
 565 extern const struct VMStateDescription vmstate_sparc_cpu;
 566 #endif
 567
 568 void sparc_cpu_do_interrupt(CPUState *cpu);
 569 void sparc_cpu_dump_state(CPUState *cpu, FILE *f,
 570                           fprintf_function cpu_fprintf, int flags);
 571 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 572 int sparc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 573 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 574 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
 575                                                  MMUAccessType access_type,
 576                                                  int mmu_idx,
 577                                                  uintptr_t retaddr);
 578 void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN;
 579
 580 #ifndef NO_CPU_IO_DEFS
 581 /* cpu_init.c */
 582 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 583 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 584 /* mmu_helper.c */
 585 int sparc_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 586                                int mmu_idx);
 587 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 588 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUSPARCState *env);
 589
 590 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 591 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr,
 592                               uint8_t *buf, int len, bool is_write);
 593 #endif
 594
 595
 596 /* translate.c */
 597 void sparc_tcg_init(void);
 598
 599 /* cpu-exec.c */
 600
 601 /* win_helper.c */
 602 target_ulong cpu_get_psr(CPUSPARCState *env1);
 603 void cpu_put_psr(CPUSPARCState *env1, target_ulong val);
 604 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val);
 605 #ifdef TARGET_SPARC64
 606 target_ulong cpu_get_ccr(CPUSPARCState *env1);
 607 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
 608 target_ulong cpu_get_cwp64(CPUSPARCState *env1);
 609 void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
 610 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate);
 611 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl);
 612 #endif
 613 int cpu_cwp_inc(CPUSPARCState *env1, int cwp);
 614 int cpu_cwp_dec(CPUSPARCState *env1, int cwp);
 615 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
 616
 617 /* int_helper.c */
 618 void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno);
 619
 620 /* sun4m.c, sun4u.c */
 621 void cpu_check_irqs(CPUSPARCState *env);
 622
 623 /* leon3.c */
 624 void leon3_irq_ack(void *irq_manager, int intno);
 625
 626 #if defined (TARGET_SPARC64)
 627
 628 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
 629 {
 630     return (x & mask) == (y & mask);
 631 }
 632
 633 #define MMU_CONTEXT_BITS 13
 634 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)
 635
 636 static inline int tlb_compare_context(const SparcTLBEntry *tlb,
 637                                       uint64_t context)
 638 {
 639     return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
 640 }
 641
 642 #endif
 643 #endif
 644
 645 /* cpu-exec.c */
 646 #if !defined(CONFIG_USER_ONLY)
 647 void sparc_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
 648                                  bool is_write, bool is_exec, int is_asi,
 649                                  unsigned size);
 650 #if defined(TARGET_SPARC64)
 651 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr,
 652                                            int mmu_idx);
 653 #endif
 654 #endif
 655 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
 656
 657 #ifndef NO_CPU_IO_DEFS
 658 #define cpu_init(cpu_model) cpu_generic_init(TYPE_SPARC_CPU, cpu_model)
 659 #endif
 660
 661 #define SPARC_CPU_TYPE_SUFFIX "-" TYPE_SPARC_CPU
 662 #define SPARC_CPU_TYPE_NAME(model) model SPARC_CPU_TYPE_SUFFIX
 663
 664 #define cpu_signal_handler cpu_sparc_signal_handler
 665 #define cpu_list sparc_cpu_list
 666
 667 /* MMU modes definitions */
 668 #if defined (TARGET_SPARC64)
 669 #define MMU_USER_IDX   0
 670 #define MMU_USER_SECONDARY_IDX   1
 671 #define MMU_KERNEL_IDX 2
 672 #define MMU_KERNEL_SECONDARY_IDX 3
 673 #define MMU_NUCLEUS_IDX 4
 674 #define MMU_PHYS_IDX   5
 675 #else
 676 #define MMU_USER_IDX   0
 677 #define MMU_KERNEL_IDX 1
 678 #define MMU_PHYS_IDX   2
 679 #endif
 680
 681 #if defined (TARGET_SPARC64)
 682 static inline int cpu_has_hypervisor(CPUSPARCState *env1)
 683 {
 684     return env1->def.features & CPU_FEATURE_HYPV;
 685 }
 686
 687 static inline int cpu_hypervisor_mode(CPUSPARCState *env1)
 688 {
 689     return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
 690 }
 691
 692 static inline int cpu_supervisor_mode(CPUSPARCState *env1)
 693 {
 694     return env1->pstate & PS_PRIV;
 695 }
 696 #else
 697 static inline int cpu_supervisor_mode(CPUSPARCState *env1)
 698 {
 699     return env1->psrs;
 700 }
 701 #endif
 702
 703 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
 704 {
 705 #if defined(CONFIG_USER_ONLY)
 706     return MMU_USER_IDX;
 707 #elif !defined(TARGET_SPARC64)
 708     if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
 709         return MMU_PHYS_IDX;
 710     } else {
 711         return env->psrs;
 712     }
 713 #else
 714     /* IMMU or DMMU disabled.  */
 715     if (ifetch
 716         ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0
 717         : (env->lsu & DMMU_E) == 0) {
 718         return MMU_PHYS_IDX;
 719     } else if (cpu_hypervisor_mode(env)) {
 720         return MMU_PHYS_IDX;
 721     } else if (env->tl > 0) {
 722         return MMU_NUCLEUS_IDX;
 723     } else if (cpu_supervisor_mode(env)) {
 724         return MMU_KERNEL_IDX;
 725     } else {
 726         return MMU_USER_IDX;
 727     }
 728 #endif
 729 }
 730
 731 static inline int cpu_interrupts_enabled(CPUSPARCState *env1)
 732 {
 733 #if !defined (TARGET_SPARC64)
 734     if (env1->psret != 0)
 735         return 1;
 736 #else
 737     if ((env1->pstate & PS_IE) && !cpu_hypervisor_mode(env1)) {
 738         return 1;
 739     }
 740 #endif
 741
 742     return 0;
 743 }
 744
 745 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil)
 746 {
 747 #if !defined(TARGET_SPARC64)
 748     /* level 15 is non-maskable on sparc v8 */
 749     return pil == 15 || pil > env1->psrpil;
 750 #else
 751     return pil > env1->psrpil;
 752 #endif
 753 }
 754
 755 #include "exec/cpu-all.h"
 756
 757 #ifdef TARGET_SPARC64
 758 /* sun4u.c */
 759 void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
 760 uint64_t cpu_tick_get_count(CPUTimer *timer);
 761 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
 762 trap_state* cpu_tsptr(CPUSPARCState* env);
 763 #endif
 764
 765 #define TB_FLAG_MMU_MASK     7
 766 #define TB_FLAG_FPU_ENABLED  (1 << 4)
 767 #define TB_FLAG_AM_ENABLED   (1 << 5)
 768 #define TB_FLAG_SUPER        (1 << 6)
 769 #define TB_FLAG_HYPER        (1 << 7)
 770 #define TB_FLAG_ASI_SHIFT    24
 771
 772 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
 773                                         target_ulong *cs_base, uint32_t *pflags)
 774 {
 775     uint32_t flags;
 776     *pc = env->pc;
 777     *cs_base = env->npc;
 778     flags = cpu_mmu_index(env, false);
 779 #ifndef CONFIG_USER_ONLY
 780     if (cpu_supervisor_mode(env)) {
 781         flags |= TB_FLAG_SUPER;
 782     }
 783 #endif
 784 #ifdef TARGET_SPARC64
 785 #ifndef CONFIG_USER_ONLY
 786     if (cpu_hypervisor_mode(env)) {
 787         flags |= TB_FLAG_HYPER;
 788     }
 789 #endif
 790     if (env->pstate & PS_AM) {
 791         flags |= TB_FLAG_AM_ENABLED;
 792     }
 793     if ((env->def.features & CPU_FEATURE_FLOAT)
 794         && (env->pstate & PS_PEF)
 795         && (env->fprs & FPRS_FEF)) {
 796         flags |= TB_FLAG_FPU_ENABLED;
 797     }
 798     flags |= env->asi << TB_FLAG_ASI_SHIFT;
 799 #else
 800     if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) {
 801         flags |= TB_FLAG_FPU_ENABLED;
 802     }
 803 #endif
 804     *pflags = flags;
 805 }
 806
 807 static inline bool tb_fpu_enabled(int tb_flags)
 808 {
 809 #if defined(CONFIG_USER_ONLY)
 810     return true;
 811 #else
 812     return tb_flags & TB_FLAG_FPU_ENABLED;
 813 #endif
 814 }
 815
 816 static inline bool tb_am_enabled(int tb_flags)
 817 {
 818 #ifndef TARGET_SPARC64
 819     return false;
 820 #else
 821     return tb_flags & TB_FLAG_AM_ENABLED;
 822 #endif
 823 }
 824
 825 #endif