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_EXTINT   0x40
  72 #define TT_IVEC     0x60
  73 #define TT_TMISS    0x64
  74 #define TT_DMISS    0x68
  75 #define TT_DPROT    0x6c
  76 #define TT_SPILL    0x80
  77 #define TT_FILL     0xc0
  78 #define TT_WOTHER   (1 << 5)
  79 #define TT_TRAP     0x100
  80 #endif
  81
  82 #define PSR_NEG_SHIFT 23
  83 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
  84 #define PSR_ZERO_SHIFT 22
  85 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
  86 #define PSR_OVF_SHIFT 21
  87 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
  88 #define PSR_CARRY_SHIFT 20
  89 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
  90 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
  91 #if !defined(TARGET_SPARC64)
  92 #define PSR_EF    (1<<12)
  93 #define PSR_PIL   0xf00
  94 #define PSR_S     (1<<7)
  95 #define PSR_PS    (1<<6)
  96 #define PSR_ET    (1<<5)
  97 #define PSR_CWP   0x1f
  98 #endif
  99
 100 #define CC_SRC (env->cc_src)
 101 #define CC_SRC2 (env->cc_src2)
 102 #define CC_DST (env->cc_dst)
 103 #define CC_OP  (env->cc_op)
 104
 105 /* Even though lazy evaluation of CPU condition codes tends to be less
 106  * important on RISC systems where condition codes are only updated
 107  * when explicitly requested, SPARC uses it to update 32-bit and 64-bit
 108  * condition codes.
 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 3
 229 #else
 230 #define NB_MMU_MODES 7
 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 #define TARGET_INSN_START_EXTRA_WORDS 1
 239
 240 typedef struct sparc_def_t {
 241     const char *name;
 242     target_ulong iu_version;
 243     uint32_t fpu_version;
 244     uint32_t mmu_version;
 245     uint32_t mmu_bm;
 246     uint32_t mmu_ctpr_mask;
 247     uint32_t mmu_cxr_mask;
 248     uint32_t mmu_sfsr_mask;
 249     uint32_t mmu_trcr_mask;
 250     uint32_t mxcc_version;
 251     uint32_t features;
 252     uint32_t nwindows;
 253     uint32_t maxtl;
 254 } sparc_def_t;
 255
 256 #define CPU_FEATURE_FLOAT        (1 << 0)
 257 #define CPU_FEATURE_FLOAT128     (1 << 1)
 258 #define CPU_FEATURE_SWAP         (1 << 2)
 259 #define CPU_FEATURE_MUL          (1 << 3)
 260 #define CPU_FEATURE_DIV          (1 << 4)
 261 #define CPU_FEATURE_FLUSH        (1 << 5)
 262 #define CPU_FEATURE_FSQRT        (1 << 6)
 263 #define CPU_FEATURE_FMUL         (1 << 7)
 264 #define CPU_FEATURE_VIS1         (1 << 8)
 265 #define CPU_FEATURE_VIS2         (1 << 9)
 266 #define CPU_FEATURE_FSMULD       (1 << 10)
 267 #define CPU_FEATURE_HYPV         (1 << 11)
 268 #define CPU_FEATURE_CMT          (1 << 12)
 269 #define CPU_FEATURE_GL           (1 << 13)
 270 #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
 271 #define CPU_FEATURE_ASR17        (1 << 15)
 272 #define CPU_FEATURE_CACHE_CTRL   (1 << 16)
 273 #define CPU_FEATURE_POWERDOWN    (1 << 17)
 274 #define CPU_FEATURE_CASA         (1 << 18)
 275
 276 #ifndef TARGET_SPARC64
 277 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 278                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 279                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 280                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 281 #else
 282 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
 283                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
 284                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
 285                               CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
 286                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
 287                               CPU_FEATURE_CASA)
 288 enum {
 289     mmu_us_12, // Ultrasparc < III (64 entry TLB)
 290     mmu_us_3,  // Ultrasparc III (512 entry TLB)
 291     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
 292     mmu_sun4v, // T1, T2
 293 };
 294 #endif
 295
 296 #define TTE_VALID_BIT       (1ULL << 63)
 297 #define TTE_NFO_BIT         (1ULL << 60)
 298 #define TTE_USED_BIT        (1ULL << 41)
 299 #define TTE_LOCKED_BIT      (1ULL <<  6)
 300 #define TTE_SIDEEFFECT_BIT  (1ULL <<  3)
 301 #define TTE_PRIV_BIT        (1ULL <<  2)
 302 #define TTE_W_OK_BIT        (1ULL <<  1)
 303 #define TTE_GLOBAL_BIT      (1ULL <<  0)
 304
 305 #define TTE_IS_VALID(tte)   ((tte) & TTE_VALID_BIT)
 306 #define TTE_IS_NFO(tte)     ((tte) & TTE_NFO_BIT)
 307 #define TTE_IS_USED(tte)    ((tte) & TTE_USED_BIT)
 308 #define TTE_IS_LOCKED(tte)  ((tte) & TTE_LOCKED_BIT)
 309 #define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT)
 310 #define TTE_IS_PRIV(tte)    ((tte) & TTE_PRIV_BIT)
 311 #define TTE_IS_W_OK(tte)    ((tte) & TTE_W_OK_BIT)
 312 #define TTE_IS_GLOBAL(tte)  ((tte) & TTE_GLOBAL_BIT)
 313
 314 #define TTE_SET_USED(tte)   ((tte) |= TTE_USED_BIT)
 315 #define TTE_SET_UNUSED(tte) ((tte) &= ~TTE_USED_BIT)
 316
 317 #define TTE_PGSIZE(tte)     (((tte) >> 61) & 3ULL)
 318 #define TTE_PA(tte)         ((tte) & 0x1ffffffe000ULL)
 319
 320 #define SFSR_NF_BIT         (1ULL << 24)   /* JPS1 NoFault */
 321 #define SFSR_TM_BIT         (1ULL << 15)   /* JPS1 TLB Miss */
 322 #define SFSR_FT_VA_IMMU_BIT (1ULL << 13)   /* USIIi VA out of range (IMMU) */
 323 #define SFSR_FT_VA_DMMU_BIT (1ULL << 12)   /* USIIi VA out of range (DMMU) */
 324 #define SFSR_FT_NFO_BIT     (1ULL << 11)   /* NFO page access */
 325 #define SFSR_FT_ILL_BIT     (1ULL << 10)   /* illegal LDA/STA ASI */
 326 #define SFSR_FT_ATOMIC_BIT  (1ULL <<  9)   /* atomic op on noncacheable area */
 327 #define SFSR_FT_NF_E_BIT    (1ULL <<  8)   /* NF access on side effect area */
 328 #define SFSR_FT_PRIV_BIT    (1ULL <<  7)   /* privilege violation */
 329 #define SFSR_PR_BIT         (1ULL <<  3)   /* privilege mode */
 330 #define SFSR_WRITE_BIT      (1ULL <<  2)   /* write access mode */
 331 #define SFSR_OW_BIT         (1ULL <<  1)   /* status overwritten */
 332 #define SFSR_VALID_BIT      (1ULL <<  0)   /* status valid */
 333
 334 #define SFSR_ASI_SHIFT      16             /* 23:16 ASI value */
 335 #define SFSR_ASI_MASK       (0xffULL << SFSR_ASI_SHIFT)
 336 #define SFSR_CT_PRIMARY     (0ULL <<  4)   /* 5:4 context type */
 337 #define SFSR_CT_SECONDARY   (1ULL <<  4)
 338 #define SFSR_CT_NUCLEUS     (2ULL <<  4)
 339 #define SFSR_CT_NOTRANS     (3ULL <<  4)
 340 #define SFSR_CT_MASK        (3ULL <<  4)
 341
 342 /* Leon3 cache control */
 343
 344 /* Cache control: emulate the behavior of cache control registers but without
 345    any effect on the emulated */
 346
 347 #define CACHE_STATE_MASK 0x3
 348 #define CACHE_DISABLED   0x0
 349 #define CACHE_FROZEN     0x1
 350 #define CACHE_ENABLED    0x3
 351
 352 /* Cache Control register fields */
 353
 354 #define CACHE_CTRL_IF (1 <<  4)  /* Instruction Cache Freeze on Interrupt */
 355 #define CACHE_CTRL_DF (1 <<  5)  /* Data Cache Freeze on Interrupt */
 356 #define CACHE_CTRL_DP (1 << 14)  /* Data cache flush pending */
 357 #define CACHE_CTRL_IP (1 << 15)  /* Instruction cache flush pending */
 358 #define CACHE_CTRL_IB (1 << 16)  /* Instruction burst fetch */
 359 #define CACHE_CTRL_FI (1 << 21)  /* Flush Instruction cache (Write only) */
 360 #define CACHE_CTRL_FD (1 << 22)  /* Flush Data cache (Write only) */
 361 #define CACHE_CTRL_DS (1 << 23)  /* Data cache snoop enable */
 362
 363 typedef struct SparcTLBEntry {
 364     uint64_t tag;
 365     uint64_t tte;
 366 } SparcTLBEntry;
 367
 368 struct CPUTimer
 369 {
 370     const char *name;
 371     uint32_t    frequency;
 372     uint32_t    disabled;
 373     uint64_t    disabled_mask;
 374     uint32_t    npt;
 375     uint64_t    npt_mask;
 376     int64_t     clock_offset;
 377     QEMUTimer  *qtimer;
 378 };
 379
 380 typedef struct CPUTimer CPUTimer;
 381
 382 typedef struct CPUSPARCState CPUSPARCState;
 383
 384 struct CPUSPARCState {
 385     target_ulong gregs[8]; /* general registers */
 386     target_ulong *regwptr; /* pointer to current register window */
 387     target_ulong pc;       /* program counter */
 388     target_ulong npc;      /* next program counter */
 389     target_ulong y;        /* multiply/divide register */
 390
 391     /* emulator internal flags handling */
 392     target_ulong cc_src, cc_src2;
 393     target_ulong cc_dst;
 394     uint32_t cc_op;
 395
 396     target_ulong cond; /* conditional branch result (XXX: save it in a
 397                           temporary register when possible) */
 398
 399     uint32_t psr;      /* processor state register */
 400     target_ulong fsr;      /* FPU state register */
 401     CPU_DoubleU fpr[TARGET_DPREGS];  /* floating point registers */
 402     uint32_t cwp;      /* index of current register window (extracted
 403                           from PSR) */
 404 #if !defined(TARGET_SPARC64) || defined(TARGET_ABI32)
 405     uint32_t wim;      /* window invalid mask */
 406 #endif
 407     target_ulong tbr;  /* trap base register */
 408 #if !defined(TARGET_SPARC64)
 409     int      psrs;     /* supervisor mode (extracted from PSR) */
 410     int      psrps;    /* previous supervisor mode */
 411     int      psret;    /* enable traps */
 412 #endif
 413     uint32_t psrpil;   /* interrupt blocking level */
 414     uint32_t pil_in;   /* incoming interrupt level bitmap */
 415 #if !defined(TARGET_SPARC64)
 416     int      psref;    /* enable fpu */
 417 #endif
 418     int interrupt_index;
 419     /* NOTE: we allow 8 more registers to handle wrapping */
 420     target_ulong regbase[MAX_NWINDOWS * 16 + 8];
 421
 422     CPU_COMMON
 423
 424     /* Fields from here on are preserved across CPU reset. */
 425     target_ulong version;
 426     uint32_t nwindows;
 427
 428     /* MMU regs */
 429 #if defined(TARGET_SPARC64)
 430     uint64_t lsu;
 431 #define DMMU_E 0x8
 432 #define IMMU_E 0x4
 433     //typedef struct SparcMMU
 434     union {
 435         uint64_t immuregs[16];
 436         struct {
 437             uint64_t tsb_tag_target;
 438             uint64_t unused_mmu_primary_context;   // use DMMU
 439             uint64_t unused_mmu_secondary_context; // use DMMU
 440             uint64_t sfsr;
 441             uint64_t sfar;
 442             uint64_t tsb;
 443             uint64_t tag_access;
 444         } immu;
 445     };
 446     union {
 447         uint64_t dmmuregs[16];
 448         struct {
 449             uint64_t tsb_tag_target;
 450             uint64_t mmu_primary_context;
 451             uint64_t mmu_secondary_context;
 452             uint64_t sfsr;
 453             uint64_t sfar;
 454             uint64_t tsb;
 455             uint64_t tag_access;
 456         } dmmu;
 457     };
 458     SparcTLBEntry itlb[64];
 459     SparcTLBEntry dtlb[64];
 460     uint32_t mmu_version;
 461 #else
 462     uint32_t mmuregs[32];
 463     uint64_t mxccdata[4];
 464     uint64_t mxccregs[8];
 465     uint32_t mmubpctrv, mmubpctrc, mmubpctrs;
 466     uint64_t mmubpaction;
 467     uint64_t mmubpregs[4];
 468     uint64_t prom_addr;
 469 #endif
 470     /* temporary float registers */
 471     float128 qt0, qt1;
 472     float_status fp_status;
 473 #if defined(TARGET_SPARC64)
 474 #define MAXTL_MAX 8
 475 #define MAXTL_MASK (MAXTL_MAX - 1)
 476     trap_state ts[MAXTL_MAX];
 477     uint32_t xcc;               /* Extended integer condition codes */
 478     uint32_t asi;
 479     uint32_t pstate;
 480     uint32_t tl;
 481     uint32_t maxtl;
 482     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
 483     uint64_t agregs[8]; /* alternate general registers */
 484     uint64_t bgregs[8]; /* backup for normal global registers */
 485     uint64_t igregs[8]; /* interrupt general registers */
 486     uint64_t mgregs[8]; /* mmu general registers */
 487     uint64_t fprs;
 488     uint64_t tick_cmpr, stick_cmpr;
 489     CPUTimer *tick, *stick;
 490 #define TICK_NPT_MASK        0x8000000000000000ULL
 491 #define TICK_INT_DIS         0x8000000000000000ULL
 492     uint64_t gsr;
 493     uint32_t gl; // UA2005
 494     /* UA 2005 hyperprivileged registers */
 495     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
 496     CPUTimer *hstick; // UA 2005
 497     /* Interrupt vector registers */
 498     uint64_t ivec_status;
 499     uint64_t ivec_data[3];
 500     uint32_t softint;
 501 #define SOFTINT_TIMER   1
 502 #define SOFTINT_STIMER  (1 << 16)
 503 #define SOFTINT_INTRMASK (0xFFFE)
 504 #define SOFTINT_REG_MASK (SOFTINT_STIMER|SOFTINT_INTRMASK|SOFTINT_TIMER)
 505 #endif
 506     sparc_def_t *def;
 507
 508     void *irq_manager;
 509     void (*qemu_irq_ack)(CPUSPARCState *env, void *irq_manager, int intno);
 510
 511     /* Leon3 cache control */
 512     uint32_t cache_control;
 513 };
 514
 515 /**
 516  * SPARCCPU:
 517  * @env: #CPUSPARCState
 518  *
 519  * A SPARC CPU.
 520  */
 521 struct SPARCCPU {
 522     /*< private >*/
 523     CPUState parent_obj;
 524     /*< public >*/
 525
 526     CPUSPARCState env;
 527 };
 528
 529 static inline SPARCCPU *sparc_env_get_cpu(CPUSPARCState *env)
 530 {
 531     return container_of(env, SPARCCPU, env);
 532 }
 533
 534 #define ENV_GET_CPU(e) CPU(sparc_env_get_cpu(e))
 535
 536 #define ENV_OFFSET offsetof(SPARCCPU, env)
 537
 538 #ifndef CONFIG_USER_ONLY
 539 extern const struct VMStateDescription vmstate_sparc_cpu;
 540 #endif
 541
 542 void sparc_cpu_do_interrupt(CPUState *cpu);
 543 void sparc_cpu_dump_state(CPUState *cpu, FILE *f,
 544                           fprintf_function cpu_fprintf, int flags);
 545 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 546 int sparc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 547 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 548 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
 549                                                  MMUAccessType access_type,
 550                                                  int mmu_idx,
 551                                                  uintptr_t retaddr);
 552 void cpu_raise_exception_ra(CPUSPARCState *, int, uintptr_t) QEMU_NORETURN;
 553
 554 #ifndef NO_CPU_IO_DEFS
 555 /* cpu_init.c */
 556 SPARCCPU *cpu_sparc_init(const char *cpu_model);
 557 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 558 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 559 /* mmu_helper.c */
 560 int sparc_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
 561                                int mmu_idx);
 562 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 563 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUSPARCState *env);
 564
 565 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
 566 int sparc_cpu_memory_rw_debug(CPUState *cpu, vaddr addr,
 567                               uint8_t *buf, int len, bool is_write);
 568 #endif
 569
 570
 571 /* translate.c */
 572 void gen_intermediate_code_init(CPUSPARCState *env);
 573
 574 /* cpu-exec.c */
 575
 576 /* win_helper.c */
 577 target_ulong cpu_get_psr(CPUSPARCState *env1);
 578 void cpu_put_psr(CPUSPARCState *env1, target_ulong val);
 579 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val);
 580 #ifdef TARGET_SPARC64
 581 target_ulong cpu_get_ccr(CPUSPARCState *env1);
 582 void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
 583 target_ulong cpu_get_cwp64(CPUSPARCState *env1);
 584 void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
 585 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate);
 586 #endif
 587 int cpu_cwp_inc(CPUSPARCState *env1, int cwp);
 588 int cpu_cwp_dec(CPUSPARCState *env1, int cwp);
 589 void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
 590
 591 /* int_helper.c */
 592 void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno);
 593
 594 /* sun4m.c, sun4u.c */
 595 void cpu_check_irqs(CPUSPARCState *env);
 596
 597 /* leon3.c */
 598 void leon3_irq_ack(void *irq_manager, int intno);
 599
 600 #if defined (TARGET_SPARC64)
 601
 602 static inline int compare_masked(uint64_t x, uint64_t y, uint64_t mask)
 603 {
 604     return (x & mask) == (y & mask);
 605 }
 606
 607 #define MMU_CONTEXT_BITS 13
 608 #define MMU_CONTEXT_MASK ((1 << MMU_CONTEXT_BITS) - 1)
 609
 610 static inline int tlb_compare_context(const SparcTLBEntry *tlb,
 611                                       uint64_t context)
 612 {
 613     return compare_masked(context, tlb->tag, MMU_CONTEXT_MASK);
 614 }
 615
 616 #endif
 617 #endif
 618
 619 /* cpu-exec.c */
 620 #if !defined(CONFIG_USER_ONLY)
 621 void sparc_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
 622                                  bool is_write, bool is_exec, int is_asi,
 623                                  unsigned size);
 624 #if defined(TARGET_SPARC64)
 625 hwaddr cpu_get_phys_page_nofault(CPUSPARCState *env, target_ulong addr,
 626                                            int mmu_idx);
 627 #endif
 628 #endif
 629 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
 630
 631 #ifndef NO_CPU_IO_DEFS
 632 #define cpu_init(cpu_model) CPU(cpu_sparc_init(cpu_model))
 633 #endif
 634
 635 #define cpu_signal_handler cpu_sparc_signal_handler
 636 #define cpu_list sparc_cpu_list
 637
 638 /* MMU modes definitions */
 639 #if defined (TARGET_SPARC64)
 640 #define MMU_USER_IDX   0
 641 #define MMU_USER_SECONDARY_IDX   1
 642 #define MMU_KERNEL_IDX 2
 643 #define MMU_KERNEL_SECONDARY_IDX 3
 644 #define MMU_NUCLEUS_IDX 4
 645 #define MMU_HYPV_IDX   5
 646 #define MMU_PHYS_IDX   6
 647 #else
 648 #define MMU_USER_IDX   0
 649 #define MMU_KERNEL_IDX 1
 650 #define MMU_PHYS_IDX   2
 651 #endif
 652
 653 #if defined (TARGET_SPARC64)
 654 static inline int cpu_has_hypervisor(CPUSPARCState *env1)
 655 {
 656     return env1->def->features & CPU_FEATURE_HYPV;
 657 }
 658
 659 static inline int cpu_hypervisor_mode(CPUSPARCState *env1)
 660 {
 661     return cpu_has_hypervisor(env1) && (env1->hpstate & HS_PRIV);
 662 }
 663
 664 static inline int cpu_supervisor_mode(CPUSPARCState *env1)
 665 {
 666     return env1->pstate & PS_PRIV;
 667 }
 668 #endif
 669
 670 static inline int cpu_mmu_index(CPUSPARCState *env, bool ifetch)
 671 {
 672 #if defined(CONFIG_USER_ONLY)
 673     return MMU_USER_IDX;
 674 #elif !defined(TARGET_SPARC64)
 675     if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
 676         return MMU_PHYS_IDX;
 677     } else {
 678         return env->psrs;
 679     }
 680 #else
 681     /* IMMU or DMMU disabled.  */
 682     if (ifetch
 683         ? (env->lsu & IMMU_E) == 0 || (env->pstate & PS_RED) != 0
 684         : (env->lsu & DMMU_E) == 0) {
 685         return MMU_PHYS_IDX;
 686     } else if (env->tl > 0) {
 687         return MMU_NUCLEUS_IDX;
 688     } else if (cpu_hypervisor_mode(env)) {
 689         return MMU_HYPV_IDX;
 690     } else if (cpu_supervisor_mode(env)) {
 691         return MMU_KERNEL_IDX;
 692     } else {
 693         return MMU_USER_IDX;
 694     }
 695 #endif
 696 }
 697
 698 static inline int cpu_interrupts_enabled(CPUSPARCState *env1)
 699 {
 700 #if !defined (TARGET_SPARC64)
 701     if (env1->psret != 0)
 702         return 1;
 703 #else
 704     if (env1->pstate & PS_IE)
 705         return 1;
 706 #endif
 707
 708     return 0;
 709 }
 710
 711 static inline int cpu_pil_allowed(CPUSPARCState *env1, int pil)
 712 {
 713 #if !defined(TARGET_SPARC64)
 714     /* level 15 is non-maskable on sparc v8 */
 715     return pil == 15 || pil > env1->psrpil;
 716 #else
 717     return pil > env1->psrpil;
 718 #endif
 719 }
 720
 721 #include "exec/cpu-all.h"
 722
 723 #ifdef TARGET_SPARC64
 724 /* sun4u.c */
 725 void cpu_tick_set_count(CPUTimer *timer, uint64_t count);
 726 uint64_t cpu_tick_get_count(CPUTimer *timer);
 727 void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
 728 trap_state* cpu_tsptr(CPUSPARCState* env);
 729 #endif
 730
 731 #define TB_FLAG_MMU_MASK     7
 732 #define TB_FLAG_FPU_ENABLED  (1 << 4)
 733 #define TB_FLAG_AM_ENABLED   (1 << 5)
 734 #define TB_FLAG_ASI_SHIFT    24
 735
 736 static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, target_ulong *pc,
 737                                         target_ulong *cs_base, uint32_t *pflags)
 738 {
 739     uint32_t flags;
 740     *pc = env->pc;
 741     *cs_base = env->npc;
 742     flags = cpu_mmu_index(env, false);
 743 #ifdef TARGET_SPARC64
 744     if (env->pstate & PS_AM) {
 745         flags |= TB_FLAG_AM_ENABLED;
 746     }
 747     if ((env->def->features & CPU_FEATURE_FLOAT)
 748         && (env->pstate & PS_PEF)
 749         && (env->fprs & FPRS_FEF)) {
 750         flags |= TB_FLAG_FPU_ENABLED;
 751     }
 752     flags |= env->asi << TB_FLAG_ASI_SHIFT;
 753 #else
 754     if ((env->def->features & CPU_FEATURE_FLOAT) && env->psref) {
 755         flags |= TB_FLAG_FPU_ENABLED;
 756     }
 757 #endif
 758     *pflags = flags;
 759 }
 760
 761 static inline bool tb_fpu_enabled(int tb_flags)
 762 {
 763 #if defined(CONFIG_USER_ONLY)
 764     return true;
 765 #else
 766     return tb_flags & TB_FLAG_FPU_ENABLED;
 767 #endif
 768 }
 769
 770 static inline bool tb_am_enabled(int tb_flags)
 771 {
 772 #ifndef TARGET_SPARC64
 773     return false;
 774 #else
 775     return tb_flags & TB_FLAG_AM_ENABLED;
 776 #endif
 777 }
 778
 779 #endif