6 //#define DEBUG_UNALIGNED
7 //#define DEBUG_UNASSIGNED
10 #define DPRINTF_MMU(fmt, args...) \
11 do { printf("MMU: " fmt , ##args); } while (0)
13 #define DPRINTF_MMU(fmt, args...)
17 #define DPRINTF_MXCC(fmt, args...) \
18 do { printf("MXCC: " fmt , ##args); } while (0)
20 #define DPRINTF_MXCC(fmt, args...)
23 void raise_exception(int tt)
25 env->exception_index = tt;
29 void check_ieee_exceptions()
31 T0 = get_float_exception_flags(&env->fp_status);
34 /* Copy IEEE 754 flags into FSR */
35 if (T0 & float_flag_invalid)
37 if (T0 & float_flag_overflow)
39 if (T0 & float_flag_underflow)
41 if (T0 & float_flag_divbyzero)
43 if (T0 & float_flag_inexact)
46 if ((env->fsr & FSR_CEXC_MASK) & ((env->fsr & FSR_TEM_MASK) >> 23))
48 /* Unmasked exception, generate a trap */
49 env->fsr |= FSR_FTT_IEEE_EXCP;
50 raise_exception(TT_FP_EXCP);
54 /* Accumulate exceptions */
55 env->fsr |= (env->fsr & FSR_CEXC_MASK) << 5;
60 #ifdef USE_INT_TO_FLOAT_HELPERS
63 set_float_exception_flags(0, &env->fp_status);
64 FT0 = int32_to_float32(*((int32_t *)&FT1), &env->fp_status);
65 check_ieee_exceptions();
70 DT0 = int32_to_float64(*((int32_t *)&FT1), &env->fp_status);
75 set_float_exception_flags(0, &env->fp_status);
76 FT0 = int64_to_float32(*((int64_t *)&DT1), &env->fp_status);
77 check_ieee_exceptions();
82 set_float_exception_flags(0, &env->fp_status);
83 DT0 = int64_to_float64(*((int64_t *)&DT1), &env->fp_status);
84 check_ieee_exceptions();
91 FT0 = float32_abs(FT1);
97 DT0 = float64_abs(DT1);
103 set_float_exception_flags(0, &env->fp_status);
104 FT0 = float32_sqrt(FT1, &env->fp_status);
105 check_ieee_exceptions();
110 set_float_exception_flags(0, &env->fp_status);
111 DT0 = float64_sqrt(DT1, &env->fp_status);
112 check_ieee_exceptions();
115 #define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
116 void glue(do_, name) (void) \
118 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
119 switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
120 case float_relation_unordered: \
121 T0 = (FSR_FCC1 | FSR_FCC0) << FS; \
122 if ((env->fsr & FSR_NVM) || TRAP) { \
124 env->fsr |= FSR_NVC; \
125 env->fsr |= FSR_FTT_IEEE_EXCP; \
126 raise_exception(TT_FP_EXCP); \
128 env->fsr |= FSR_NVA; \
131 case float_relation_less: \
132 T0 = FSR_FCC0 << FS; \
134 case float_relation_greater: \
135 T0 = FSR_FCC1 << FS; \
144 GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
145 GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
147 GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
148 GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
150 #ifdef TARGET_SPARC64
151 GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
152 GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
154 GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
155 GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
157 GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
158 GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
160 GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
161 GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
163 GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
164 GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
166 GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
167 GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
170 #ifndef TARGET_SPARC64
171 #ifndef CONFIG_USER_ONLY
174 static void dump_mxcc(CPUState *env)
176 printf("mxccdata: %016llx %016llx %016llx %016llx\n",
177 env->mxccdata[0], env->mxccdata[1], env->mxccdata[2], env->mxccdata[3]);
178 printf("mxccregs: %016llx %016llx %016llx %016llx\n"
179 " %016llx %016llx %016llx %016llx\n",
180 env->mxccregs[0], env->mxccregs[1], env->mxccregs[2], env->mxccregs[3],
181 env->mxccregs[4], env->mxccregs[5], env->mxccregs[6], env->mxccregs[7]);
185 void helper_ld_asi(int asi, int size, int sign)
190 uint32_t last_T0 = T0;
194 case 2: /* SuperSparc MXCC registers */
196 case 0x01c00a00: /* MXCC control register */
198 ret = env->mxccregs[3];
199 T0 = env->mxccregs[3] >> 32;
201 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
203 case 0x01c00a04: /* MXCC control register */
205 ret = env->mxccregs[3];
207 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
209 case 0x01c00f00: /* MBus port address register */
211 ret = env->mxccregs[7];
212 T0 = env->mxccregs[7] >> 32;
214 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
217 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
220 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, T0 = %08x -> ret = %08x,"
221 "T0 = %08x\n", asi, size, sign, last_T0, ret, T0);
226 case 3: /* MMU probe */
230 mmulev = (T0 >> 8) & 15;
234 ret = mmu_probe(env, T0, mmulev);
237 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
240 case 4: /* read MMU regs */
242 int reg = (T0 >> 8) & 0xf;
244 ret = env->mmuregs[reg];
245 if (reg == 3) /* Fault status cleared on read */
246 env->mmuregs[reg] = 0;
247 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
250 case 9: /* Supervisor code access */
256 ret = lduw_code(T0 & ~1);
260 ret = ldl_code(T0 & ~3);
263 tmp = ldq_code(T0 & ~7);
265 T0 = tmp & 0xffffffff;
269 case 0xa: /* User data access */
275 ret = lduw_user(T0 & ~1);
279 ret = ldl_user(T0 & ~3);
282 tmp = ldq_user(T0 & ~7);
284 T0 = tmp & 0xffffffff;
288 case 0xb: /* Supervisor data access */
291 ret = ldub_kernel(T0);
294 ret = lduw_kernel(T0 & ~1);
298 ret = ldl_kernel(T0 & ~3);
301 tmp = ldq_kernel(T0 & ~7);
303 T0 = tmp & 0xffffffff;
307 case 0xc: /* I-cache tag */
308 case 0xd: /* I-cache data */
309 case 0xe: /* D-cache tag */
310 case 0xf: /* D-cache data */
312 case 0x20: /* MMU passthrough */
318 ret = lduw_phys(T0 & ~1);
322 ret = ldl_phys(T0 & ~3);
325 tmp = ldq_phys(T0 & ~7);
327 T0 = tmp & 0xffffffff;
331 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
332 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
335 ret = ldub_phys((target_phys_addr_t)T0
336 | ((target_phys_addr_t)(asi & 0xf) << 32));
339 ret = lduw_phys((target_phys_addr_t)(T0 & ~1)
340 | ((target_phys_addr_t)(asi & 0xf) << 32));
344 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
345 | ((target_phys_addr_t)(asi & 0xf) << 32));
348 tmp = ldq_phys((target_phys_addr_t)(T0 & ~7)
349 | ((target_phys_addr_t)(asi & 0xf) << 32));
351 T0 = tmp & 0xffffffff;
355 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
357 do_unassigned_access(T0, 0, 0, 1);
378 void helper_st_asi(int asi, int size)
381 case 2: /* SuperSparc MXCC registers */
383 case 0x01c00000: /* MXCC stream data register 0 */
385 env->mxccdata[0] = ((uint64_t)T1 << 32) | T2;
387 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
389 case 0x01c00008: /* MXCC stream data register 1 */
391 env->mxccdata[1] = ((uint64_t)T1 << 32) | T2;
393 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
395 case 0x01c00010: /* MXCC stream data register 2 */
397 env->mxccdata[2] = ((uint64_t)T1 << 32) | T2;
399 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
401 case 0x01c00018: /* MXCC stream data register 3 */
403 env->mxccdata[3] = ((uint64_t)T1 << 32) | T2;
405 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
407 case 0x01c00100: /* MXCC stream source */
409 env->mxccregs[0] = ((uint64_t)T1 << 32) | T2;
411 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
412 env->mxccdata[0] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 0);
413 env->mxccdata[1] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 8);
414 env->mxccdata[2] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 16);
415 env->mxccdata[3] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 24);
417 case 0x01c00200: /* MXCC stream destination */
419 env->mxccregs[1] = ((uint64_t)T1 << 32) | T2;
421 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
422 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 0, env->mxccdata[0]);
423 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 8, env->mxccdata[1]);
424 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 16, env->mxccdata[2]);
425 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 24, env->mxccdata[3]);
427 case 0x01c00a00: /* MXCC control register */
429 env->mxccregs[3] = ((uint64_t)T1 << 32) | T2;
431 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
433 case 0x01c00a04: /* MXCC control register */
435 env->mxccregs[3] = (env->mxccregs[0xa] & 0xffffffff00000000) | T1;
437 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
439 case 0x01c00e00: /* MXCC error register */
441 env->mxccregs[6] = ((uint64_t)T1 << 32) | T2;
443 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
444 if (env->mxccregs[6] == 0xffffffffffffffffULL) {
445 // this is probably a reset
448 case 0x01c00f00: /* MBus port address register */
450 env->mxccregs[7] = ((uint64_t)T1 << 32) | T2;
452 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
455 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
458 DPRINTF_MXCC("asi = %d, size = %d, T0 = %08x, T1 = %08x\n", asi, size, T0, T1);
463 case 3: /* MMU flush */
467 mmulev = (T0 >> 8) & 15;
468 DPRINTF_MMU("mmu flush level %d\n", mmulev);
470 case 0: // flush page
471 tlb_flush_page(env, T0 & 0xfffff000);
473 case 1: // flush segment (256k)
474 case 2: // flush region (16M)
475 case 3: // flush context (4G)
476 case 4: // flush entire
487 case 4: /* write MMU regs */
489 int reg = (T0 >> 8) & 0xf;
492 oldreg = env->mmuregs[reg];
495 env->mmuregs[reg] &= ~(MMU_E | MMU_NF | MMU_BM);
496 env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF | MMU_BM);
497 // Mappings generated during no-fault mode or MMU
498 // disabled mode are invalid in normal mode
499 if (oldreg != env->mmuregs[reg])
503 env->mmuregs[reg] = T1;
504 if (oldreg != env->mmuregs[reg]) {
505 /* we flush when the MMU context changes because
506 QEMU has no MMU context support */
514 env->mmuregs[reg] = T1;
517 if (oldreg != env->mmuregs[reg]) {
518 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
525 case 0xa: /* User data access */
531 stw_user(T0 & ~1, T1);
535 stl_user(T0 & ~3, T1);
538 stq_user(T0 & ~7, ((uint64_t)T1 << 32) | T2);
542 case 0xb: /* Supervisor data access */
548 stw_kernel(T0 & ~1, T1);
552 stl_kernel(T0 & ~3, T1);
555 stq_kernel(T0 & ~7, ((uint64_t)T1 << 32) | T2);
559 case 0xc: /* I-cache tag */
560 case 0xd: /* I-cache data */
561 case 0xe: /* D-cache tag */
562 case 0xf: /* D-cache data */
563 case 0x10: /* I/D-cache flush page */
564 case 0x11: /* I/D-cache flush segment */
565 case 0x12: /* I/D-cache flush region */
566 case 0x13: /* I/D-cache flush context */
567 case 0x14: /* I/D-cache flush user */
569 case 0x17: /* Block copy, sta access */
572 // address (T0) = dst
575 uint32_t src = T1 & ~3, dst = T0 & ~3, temp;
577 for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
578 temp = ldl_kernel(src);
579 stl_kernel(dst, temp);
583 case 0x1f: /* Block fill, stda access */
586 // address (T0) = dst
589 uint32_t dst = T0 & 7;
592 val = (((uint64_t)T1) << 32) | T2;
594 for (i = 0; i < 32; i += 8, dst += 8)
595 stq_kernel(dst, val);
598 case 0x20: /* MMU passthrough */
605 stw_phys(T0 & ~1, T1);
609 stl_phys(T0 & ~3, T1);
612 stq_phys(T0 & ~7, ((uint64_t)T1 << 32) | T2);
617 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
618 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
622 stb_phys((target_phys_addr_t)T0
623 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
626 stw_phys((target_phys_addr_t)(T0 & ~1)
627 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
631 stl_phys((target_phys_addr_t)(T0 & ~3)
632 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
635 stq_phys((target_phys_addr_t)(T0 & ~7)
636 | ((target_phys_addr_t)(asi & 0xf) << 32),
637 ((uint64_t)T1 << 32) | T2);
642 case 0x31: /* Ross RT620 I-cache flush */
643 case 0x36: /* I-cache flash clear */
644 case 0x37: /* D-cache flash clear */
646 case 9: /* Supervisor code access, XXX */
647 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
649 do_unassigned_access(T0, 1, 0, 1);
654 #endif /* CONFIG_USER_ONLY */
655 #else /* TARGET_SPARC64 */
657 #ifdef CONFIG_USER_ONLY
658 void helper_ld_asi(int asi, int size, int sign)
663 raise_exception(TT_PRIV_ACT);
666 case 0x80: // Primary
667 case 0x82: // Primary no-fault
668 case 0x88: // Primary LE
669 case 0x8a: // Primary no-fault LE
676 ret = lduw_raw(T0 & ~1);
679 ret = ldl_raw(T0 & ~3);
683 ret = ldq_raw(T0 & ~7);
688 case 0x81: // Secondary
689 case 0x83: // Secondary no-fault
690 case 0x89: // Secondary LE
691 case 0x8b: // Secondary no-fault LE
698 /* Convert from little endian */
700 case 0x88: // Primary LE
701 case 0x89: // Secondary LE
702 case 0x8a: // Primary no-fault LE
703 case 0x8b: // Secondary no-fault LE
721 /* Convert to signed number */
740 void helper_st_asi(int asi, int size)
743 raise_exception(TT_PRIV_ACT);
745 /* Convert to little endian */
747 case 0x88: // Primary LE
748 case 0x89: // Secondary LE
767 case 0x80: // Primary
768 case 0x88: // Primary LE
775 stw_raw(T0 & ~1, T1);
778 stl_raw(T0 & ~3, T1);
782 stq_raw(T0 & ~7, T1);
787 case 0x81: // Secondary
788 case 0x89: // Secondary LE
792 case 0x82: // Primary no-fault, RO
793 case 0x83: // Secondary no-fault, RO
794 case 0x8a: // Primary no-fault LE, RO
795 case 0x8b: // Secondary no-fault LE, RO
797 do_unassigned_access(T0, 1, 0, 1);
802 #else /* CONFIG_USER_ONLY */
804 void helper_ld_asi(int asi, int size, int sign)
808 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
809 || (asi >= 0x30 && asi < 0x80) && !(env->hpstate & HS_PRIV))
810 raise_exception(TT_PRIV_ACT);
813 case 0x10: // As if user primary
814 case 0x18: // As if user primary LE
815 case 0x80: // Primary
816 case 0x82: // Primary no-fault
817 case 0x88: // Primary LE
818 case 0x8a: // Primary no-fault LE
819 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
820 if (env->hpstate & HS_PRIV) {
826 ret = lduw_hypv(T0 & ~1);
829 ret = ldl_hypv(T0 & ~3);
833 ret = ldq_hypv(T0 & ~7);
839 ret = ldub_kernel(T0);
842 ret = lduw_kernel(T0 & ~1);
845 ret = ldl_kernel(T0 & ~3);
849 ret = ldq_kernel(T0 & ~7);
859 ret = lduw_user(T0 & ~1);
862 ret = ldl_user(T0 & ~3);
866 ret = ldq_user(T0 & ~7);
872 case 0x15: // Bypass, non-cacheable
873 case 0x1c: // Bypass LE
874 case 0x1d: // Bypass, non-cacheable LE
881 ret = lduw_phys(T0 & ~1);
884 ret = ldl_phys(T0 & ~3);
888 ret = ldq_phys(T0 & ~7);
893 case 0x04: // Nucleus
894 case 0x0c: // Nucleus Little Endian (LE)
895 case 0x11: // As if user secondary
896 case 0x19: // As if user secondary LE
897 case 0x24: // Nucleus quad LDD 128 bit atomic
898 case 0x2c: // Nucleus quad LDD 128 bit atomic
899 case 0x4a: // UPA config
900 case 0x81: // Secondary
901 case 0x83: // Secondary no-fault
902 case 0x89: // Secondary LE
903 case 0x8b: // Secondary no-fault LE
909 case 0x50: // I-MMU regs
911 int reg = (T0 >> 3) & 0xf;
913 ret = env->immuregs[reg];
916 case 0x51: // I-MMU 8k TSB pointer
917 case 0x52: // I-MMU 64k TSB pointer
918 case 0x55: // I-MMU data access
921 case 0x56: // I-MMU tag read
925 for (i = 0; i < 64; i++) {
926 // Valid, ctx match, vaddr match
927 if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
928 env->itlb_tag[i] == T0) {
929 ret = env->itlb_tag[i];
935 case 0x58: // D-MMU regs
937 int reg = (T0 >> 3) & 0xf;
939 ret = env->dmmuregs[reg];
942 case 0x5e: // D-MMU tag read
946 for (i = 0; i < 64; i++) {
947 // Valid, ctx match, vaddr match
948 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
949 env->dtlb_tag[i] == T0) {
950 ret = env->dtlb_tag[i];
956 case 0x59: // D-MMU 8k TSB pointer
957 case 0x5a: // D-MMU 64k TSB pointer
958 case 0x5b: // D-MMU data pointer
959 case 0x5d: // D-MMU data access
960 case 0x48: // Interrupt dispatch, RO
961 case 0x49: // Interrupt data receive
962 case 0x7f: // Incoming interrupt vector, RO
965 case 0x54: // I-MMU data in, WO
966 case 0x57: // I-MMU demap, WO
967 case 0x5c: // D-MMU data in, WO
968 case 0x5f: // D-MMU demap, WO
969 case 0x77: // Interrupt vector, WO
971 do_unassigned_access(T0, 0, 0, 1);
976 /* Convert from little endian */
978 case 0x0c: // Nucleus Little Endian (LE)
979 case 0x18: // As if user primary LE
980 case 0x19: // As if user secondary LE
981 case 0x1c: // Bypass LE
982 case 0x1d: // Bypass, non-cacheable LE
983 case 0x88: // Primary LE
984 case 0x89: // Secondary LE
985 case 0x8a: // Primary no-fault LE
986 case 0x8b: // Secondary no-fault LE
1004 /* Convert to signed number */
1011 ret = (int16_t) ret;
1014 ret = (int32_t) ret;
1023 void helper_st_asi(int asi, int size)
1025 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
1026 || (asi >= 0x30 && asi < 0x80) && !(env->hpstate & HS_PRIV))
1027 raise_exception(TT_PRIV_ACT);
1029 /* Convert to little endian */
1031 case 0x0c: // Nucleus Little Endian (LE)
1032 case 0x18: // As if user primary LE
1033 case 0x19: // As if user secondary LE
1034 case 0x1c: // Bypass LE
1035 case 0x1d: // Bypass, non-cacheable LE
1036 case 0x88: // Primary LE
1037 case 0x89: // Secondary LE
1056 case 0x10: // As if user primary
1057 case 0x18: // As if user primary LE
1058 case 0x80: // Primary
1059 case 0x88: // Primary LE
1060 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
1061 if (env->hpstate & HS_PRIV) {
1067 stw_hypv(T0 & ~1, T1);
1070 stl_hypv(T0 & ~3, T1);
1074 stq_hypv(T0 & ~7, T1);
1083 stw_kernel(T0 & ~1, T1);
1086 stl_kernel(T0 & ~3, T1);
1090 stq_kernel(T0 & ~7, T1);
1100 stw_user(T0 & ~1, T1);
1103 stl_user(T0 & ~3, T1);
1107 stq_user(T0 & ~7, T1);
1112 case 0x14: // Bypass
1113 case 0x15: // Bypass, non-cacheable
1114 case 0x1c: // Bypass LE
1115 case 0x1d: // Bypass, non-cacheable LE
1122 stw_phys(T0 & ~1, T1);
1125 stl_phys(T0 & ~3, T1);
1129 stq_phys(T0 & ~7, T1);
1134 case 0x04: // Nucleus
1135 case 0x0c: // Nucleus Little Endian (LE)
1136 case 0x11: // As if user secondary
1137 case 0x19: // As if user secondary LE
1138 case 0x24: // Nucleus quad LDD 128 bit atomic
1139 case 0x2c: // Nucleus quad LDD 128 bit atomic
1140 case 0x4a: // UPA config
1141 case 0x81: // Secondary
1142 case 0x89: // Secondary LE
1150 env->lsu = T1 & (DMMU_E | IMMU_E);
1151 // Mappings generated during D/I MMU disabled mode are
1152 // invalid in normal mode
1153 if (oldreg != env->lsu) {
1154 DPRINTF_MMU("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
1162 case 0x50: // I-MMU regs
1164 int reg = (T0 >> 3) & 0xf;
1167 oldreg = env->immuregs[reg];
1172 case 1: // Not in I-MMU
1179 T1 = 0; // Clear SFSR
1181 case 5: // TSB access
1182 case 6: // Tag access
1186 env->immuregs[reg] = T1;
1187 if (oldreg != env->immuregs[reg]) {
1188 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1195 case 0x54: // I-MMU data in
1199 // Try finding an invalid entry
1200 for (i = 0; i < 64; i++) {
1201 if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
1202 env->itlb_tag[i] = env->immuregs[6];
1203 env->itlb_tte[i] = T1;
1207 // Try finding an unlocked entry
1208 for (i = 0; i < 64; i++) {
1209 if ((env->itlb_tte[i] & 0x40) == 0) {
1210 env->itlb_tag[i] = env->immuregs[6];
1211 env->itlb_tte[i] = T1;
1218 case 0x55: // I-MMU data access
1220 unsigned int i = (T0 >> 3) & 0x3f;
1222 env->itlb_tag[i] = env->immuregs[6];
1223 env->itlb_tte[i] = T1;
1226 case 0x57: // I-MMU demap
1229 case 0x58: // D-MMU regs
1231 int reg = (T0 >> 3) & 0xf;
1234 oldreg = env->dmmuregs[reg];
1240 if ((T1 & 1) == 0) {
1241 T1 = 0; // Clear SFSR, Fault address
1242 env->dmmuregs[4] = 0;
1244 env->dmmuregs[reg] = T1;
1246 case 1: // Primary context
1247 case 2: // Secondary context
1248 case 5: // TSB access
1249 case 6: // Tag access
1250 case 7: // Virtual Watchpoint
1251 case 8: // Physical Watchpoint
1255 env->dmmuregs[reg] = T1;
1256 if (oldreg != env->dmmuregs[reg]) {
1257 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1264 case 0x5c: // D-MMU data in
1268 // Try finding an invalid entry
1269 for (i = 0; i < 64; i++) {
1270 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
1271 env->dtlb_tag[i] = env->dmmuregs[6];
1272 env->dtlb_tte[i] = T1;
1276 // Try finding an unlocked entry
1277 for (i = 0; i < 64; i++) {
1278 if ((env->dtlb_tte[i] & 0x40) == 0) {
1279 env->dtlb_tag[i] = env->dmmuregs[6];
1280 env->dtlb_tte[i] = T1;
1287 case 0x5d: // D-MMU data access
1289 unsigned int i = (T0 >> 3) & 0x3f;
1291 env->dtlb_tag[i] = env->dmmuregs[6];
1292 env->dtlb_tte[i] = T1;
1295 case 0x5f: // D-MMU demap
1296 case 0x49: // Interrupt data receive
1299 case 0x51: // I-MMU 8k TSB pointer, RO
1300 case 0x52: // I-MMU 64k TSB pointer, RO
1301 case 0x56: // I-MMU tag read, RO
1302 case 0x59: // D-MMU 8k TSB pointer, RO
1303 case 0x5a: // D-MMU 64k TSB pointer, RO
1304 case 0x5b: // D-MMU data pointer, RO
1305 case 0x5e: // D-MMU tag read, RO
1306 case 0x48: // Interrupt dispatch, RO
1307 case 0x7f: // Incoming interrupt vector, RO
1308 case 0x82: // Primary no-fault, RO
1309 case 0x83: // Secondary no-fault, RO
1310 case 0x8a: // Primary no-fault LE, RO
1311 case 0x8b: // Secondary no-fault LE, RO
1313 do_unassigned_access(T0, 1, 0, 1);
1317 #endif /* CONFIG_USER_ONLY */
1319 void helper_ldf_asi(int asi, int size, int rd)
1321 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1325 case 0xf0: // Block load primary
1326 case 0xf1: // Block load secondary
1327 case 0xf8: // Block load primary LE
1328 case 0xf9: // Block load secondary LE
1330 raise_exception(TT_ILL_INSN);
1334 raise_exception(TT_UNALIGNED);
1337 for (i = 0; i < 16; i++) {
1338 helper_ld_asi(asi & 0x8f, 4, 0);
1339 *(uint32_t *)&env->fpr[rd++] = T1;
1350 helper_ld_asi(asi, size, 0);
1354 *((uint32_t *)&FT0) = T1;
1357 *((int64_t *)&DT0) = T1;
1363 void helper_stf_asi(int asi, int size, int rd)
1365 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1369 case 0xf0: // Block store primary
1370 case 0xf1: // Block store secondary
1371 case 0xf8: // Block store primary LE
1372 case 0xf9: // Block store secondary LE
1374 raise_exception(TT_ILL_INSN);
1378 raise_exception(TT_UNALIGNED);
1381 for (i = 0; i < 16; i++) {
1382 T1 = *(uint32_t *)&env->fpr[rd++];
1383 helper_st_asi(asi & 0x8f, 4);
1397 T1 = *((uint32_t *)&FT0);
1400 T1 = *((int64_t *)&DT0);
1403 helper_st_asi(asi, size);
1407 #endif /* TARGET_SPARC64 */
1409 #ifndef TARGET_SPARC64
1414 if (env->psret == 1)
1415 raise_exception(TT_ILL_INSN);
1418 cwp = (env->cwp + 1) & (NWINDOWS - 1);
1419 if (env->wim & (1 << cwp)) {
1420 raise_exception(TT_WIN_UNF);
1423 env->psrs = env->psrps;
1427 void helper_ldfsr(void)
1430 switch (env->fsr & FSR_RD_MASK) {
1431 case FSR_RD_NEAREST:
1432 rnd_mode = float_round_nearest_even;
1436 rnd_mode = float_round_to_zero;
1439 rnd_mode = float_round_up;
1442 rnd_mode = float_round_down;
1445 set_float_rounding_mode(rnd_mode, &env->fp_status);
1450 env->exception_index = EXCP_DEBUG;
1454 #ifndef TARGET_SPARC64
1457 if ((T0 & PSR_CWP) >= NWINDOWS)
1458 raise_exception(TT_ILL_INSN);
1472 T0 = (T1 & 0x5555555555555555ULL) + ((T1 >> 1) & 0x5555555555555555ULL);
1473 T0 = (T0 & 0x3333333333333333ULL) + ((T0 >> 2) & 0x3333333333333333ULL);
1474 T0 = (T0 & 0x0f0f0f0f0f0f0f0fULL) + ((T0 >> 4) & 0x0f0f0f0f0f0f0f0fULL);
1475 T0 = (T0 & 0x00ff00ff00ff00ffULL) + ((T0 >> 8) & 0x00ff00ff00ff00ffULL);
1476 T0 = (T0 & 0x0000ffff0000ffffULL) + ((T0 >> 16) & 0x0000ffff0000ffffULL);
1477 T0 = (T0 & 0x00000000ffffffffULL) + ((T0 >> 32) & 0x00000000ffffffffULL);
1480 static inline uint64_t *get_gregset(uint64_t pstate)
1495 static inline void change_pstate(uint64_t new_pstate)
1497 uint64_t pstate_regs, new_pstate_regs;
1498 uint64_t *src, *dst;
1500 pstate_regs = env->pstate & 0xc01;
1501 new_pstate_regs = new_pstate & 0xc01;
1502 if (new_pstate_regs != pstate_regs) {
1503 // Switch global register bank
1504 src = get_gregset(new_pstate_regs);
1505 dst = get_gregset(pstate_regs);
1506 memcpy32(dst, env->gregs);
1507 memcpy32(env->gregs, src);
1509 env->pstate = new_pstate;
1512 void do_wrpstate(void)
1514 change_pstate(T0 & 0xf3f);
1520 env->pc = env->tnpc[env->tl];
1521 env->npc = env->tnpc[env->tl] + 4;
1522 PUT_CCR(env, env->tstate[env->tl] >> 32);
1523 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1524 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1525 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1531 env->pc = env->tpc[env->tl];
1532 env->npc = env->tnpc[env->tl];
1533 PUT_CCR(env, env->tstate[env->tl] >> 32);
1534 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1535 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1536 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1540 void set_cwp(int new_cwp)
1542 /* put the modified wrap registers at their proper location */
1543 if (env->cwp == (NWINDOWS - 1))
1544 memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
1546 /* put the wrap registers at their temporary location */
1547 if (new_cwp == (NWINDOWS - 1))
1548 memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
1549 env->regwptr = env->regbase + (new_cwp * 16);
1550 REGWPTR = env->regwptr;
1553 void cpu_set_cwp(CPUState *env1, int new_cwp)
1555 CPUState *saved_env;
1557 target_ulong *saved_regwptr;
1562 saved_regwptr = REGWPTR;
1568 REGWPTR = saved_regwptr;
1572 #ifdef TARGET_SPARC64
1573 void do_interrupt(int intno)
1576 if (loglevel & CPU_LOG_INT) {
1578 fprintf(logfile, "%6d: v=%04x pc=%016" PRIx64 " npc=%016" PRIx64 " SP=%016" PRIx64 "\n",
1581 env->npc, env->regwptr[6]);
1582 cpu_dump_state(env, logfile, fprintf, 0);
1588 fprintf(logfile, " code=");
1589 ptr = (uint8_t *)env->pc;
1590 for(i = 0; i < 16; i++) {
1591 fprintf(logfile, " %02x", ldub(ptr + i));
1593 fprintf(logfile, "\n");
1599 #if !defined(CONFIG_USER_ONLY)
1600 if (env->tl == MAXTL) {
1601 cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
1605 env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
1606 ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
1607 env->tpc[env->tl] = env->pc;
1608 env->tnpc[env->tl] = env->npc;
1609 env->tt[env->tl] = intno;
1610 change_pstate(PS_PEF | PS_PRIV | PS_AG);
1612 if (intno == TT_CLRWIN)
1613 set_cwp((env->cwp - 1) & (NWINDOWS - 1));
1614 else if ((intno & 0x1c0) == TT_SPILL)
1615 set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
1616 else if ((intno & 0x1c0) == TT_FILL)
1617 set_cwp((env->cwp + 1) & (NWINDOWS - 1));
1618 env->tbr &= ~0x7fffULL;
1619 env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
1620 if (env->tl < MAXTL - 1) {
1623 env->pstate |= PS_RED;
1624 if (env->tl != MAXTL)
1628 env->npc = env->pc + 4;
1629 env->exception_index = 0;
1632 void do_interrupt(int intno)
1637 if (loglevel & CPU_LOG_INT) {
1639 fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",
1642 env->npc, env->regwptr[6]);
1643 cpu_dump_state(env, logfile, fprintf, 0);
1649 fprintf(logfile, " code=");
1650 ptr = (uint8_t *)env->pc;
1651 for(i = 0; i < 16; i++) {
1652 fprintf(logfile, " %02x", ldub(ptr + i));
1654 fprintf(logfile, "\n");
1660 #if !defined(CONFIG_USER_ONLY)
1661 if (env->psret == 0) {
1662 cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
1667 cwp = (env->cwp - 1) & (NWINDOWS - 1);
1669 env->regwptr[9] = env->pc;
1670 env->regwptr[10] = env->npc;
1671 env->psrps = env->psrs;
1673 env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
1675 env->npc = env->pc + 4;
1676 env->exception_index = 0;
1680 #if !defined(CONFIG_USER_ONLY)
1682 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1685 #define MMUSUFFIX _mmu
1686 #define ALIGNED_ONLY
1687 #define GETPC() (__builtin_return_address(0))
1690 #include "softmmu_template.h"
1693 #include "softmmu_template.h"
1696 #include "softmmu_template.h"
1699 #include "softmmu_template.h"
1701 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1704 #ifdef DEBUG_UNALIGNED
1705 printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
1707 raise_exception(TT_UNALIGNED);
1710 /* try to fill the TLB and return an exception if error. If retaddr is
1711 NULL, it means that the function was called in C code (i.e. not
1712 from generated code or from helper.c) */
1713 /* XXX: fix it to restore all registers */
1714 void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
1716 TranslationBlock *tb;
1719 CPUState *saved_env;
1721 /* XXX: hack to restore env in all cases, even if not called from
1724 env = cpu_single_env;
1726 ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
1729 /* now we have a real cpu fault */
1730 pc = (unsigned long)retaddr;
1731 tb = tb_find_pc(pc);
1733 /* the PC is inside the translated code. It means that we have
1734 a virtual CPU fault */
1735 cpu_restore_state(tb, env, pc, (void *)T2);
1745 #ifndef TARGET_SPARC64
1746 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1749 CPUState *saved_env;
1751 /* XXX: hack to restore env in all cases, even if not called from
1754 env = cpu_single_env;
1755 if (env->mmuregs[3]) /* Fault status register */
1756 env->mmuregs[3] = 1; /* overflow (not read before another fault) */
1758 env->mmuregs[3] |= 1 << 16;
1760 env->mmuregs[3] |= 1 << 5;
1762 env->mmuregs[3] |= 1 << 6;
1764 env->mmuregs[3] |= 1 << 7;
1765 env->mmuregs[3] |= (5 << 2) | 2;
1766 env->mmuregs[4] = addr; /* Fault address register */
1767 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
1768 #ifdef DEBUG_UNASSIGNED
1769 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
1770 "\n", addr, env->pc);
1773 raise_exception(TT_CODE_ACCESS);
1775 raise_exception(TT_DATA_ACCESS);
1780 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1783 #ifdef DEBUG_UNASSIGNED
1784 CPUState *saved_env;
1786 /* XXX: hack to restore env in all cases, even if not called from
1789 env = cpu_single_env;
1790 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
1795 raise_exception(TT_CODE_ACCESS);
1797 raise_exception(TT_DATA_ACCESS);
1801 #ifdef TARGET_SPARC64
1802 void do_tick_set_count(void *opaque, uint64_t count)
1804 #if !defined(CONFIG_USER_ONLY)
1805 ptimer_set_count(opaque, -count);
1809 uint64_t do_tick_get_count(void *opaque)
1811 #if !defined(CONFIG_USER_ONLY)
1812 return -ptimer_get_count(opaque);
1818 void do_tick_set_limit(void *opaque, uint64_t limit)
1820 #if !defined(CONFIG_USER_ONLY)
1821 ptimer_set_limit(opaque, -limit, 0);