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);
76 FT0 = float32_abs(FT1);
82 DT0 = float64_abs(DT1);
88 set_float_exception_flags(0, &env->fp_status);
89 FT0 = float32_sqrt(FT1, &env->fp_status);
90 check_ieee_exceptions();
95 set_float_exception_flags(0, &env->fp_status);
96 DT0 = float64_sqrt(DT1, &env->fp_status);
97 check_ieee_exceptions();
100 #define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
101 void glue(do_, name) (void) \
103 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
104 switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
105 case float_relation_unordered: \
106 T0 = (FSR_FCC1 | FSR_FCC0) << FS; \
107 if ((env->fsr & FSR_NVM) || TRAP) { \
109 env->fsr |= FSR_NVC; \
110 env->fsr |= FSR_FTT_IEEE_EXCP; \
111 raise_exception(TT_FP_EXCP); \
113 env->fsr |= FSR_NVA; \
116 case float_relation_less: \
117 T0 = FSR_FCC0 << FS; \
119 case float_relation_greater: \
120 T0 = FSR_FCC1 << FS; \
129 GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
130 GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
132 GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
133 GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
135 #ifdef TARGET_SPARC64
136 GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
137 GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
139 GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
140 GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
142 GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
143 GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
145 GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
146 GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
148 GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
149 GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
151 GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
152 GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
155 #ifndef TARGET_SPARC64
156 #ifndef CONFIG_USER_ONLY
159 static void dump_mxcc(CPUState *env)
161 printf("mxccdata: %016llx %016llx %016llx %016llx\n",
162 env->mxccdata[0], env->mxccdata[1], env->mxccdata[2], env->mxccdata[3]);
163 printf("mxccregs: %016llx %016llx %016llx %016llx\n"
164 " %016llx %016llx %016llx %016llx\n",
165 env->mxccregs[0], env->mxccregs[1], env->mxccregs[2], env->mxccregs[3],
166 env->mxccregs[4], env->mxccregs[5], env->mxccregs[6], env->mxccregs[7]);
170 void helper_ld_asi(int asi, int size, int sign)
174 uint32_t last_T0 = T0;
178 case 2: /* SuperSparc MXCC registers */
180 case 0x01c00a00: /* MXCC control register */
182 ret = env->mxccregs[3];
183 T0 = env->mxccregs[3] >> 32;
185 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
187 case 0x01c00a04: /* MXCC control register */
189 ret = env->mxccregs[3];
191 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
193 case 0x01c00f00: /* MBus port address register */
195 ret = env->mxccregs[7];
196 T0 = env->mxccregs[7] >> 32;
198 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
201 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
204 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, T0 = %08x -> ret = %08x,"
205 "T0 = %08x\n", asi, size, sign, last_T0, ret, T0);
210 case 3: /* MMU probe */
214 mmulev = (T0 >> 8) & 15;
218 ret = mmu_probe(env, T0, mmulev);
221 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
224 case 4: /* read MMU regs */
226 int reg = (T0 >> 8) & 0xf;
228 ret = env->mmuregs[reg];
229 if (reg == 3) /* Fault status cleared on read */
230 env->mmuregs[reg] = 0;
231 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
234 case 9: /* Supervisor code access */
240 ret = lduw_code(T0 & ~1);
244 ret = ldl_code(T0 & ~3);
247 ret = ldl_code(T0 & ~3);
248 T0 = ldl_code((T0 + 4) & ~3);
252 case 0xa: /* User data access */
258 ret = lduw_user(T0 & ~1);
262 ret = ldl_user(T0 & ~3);
265 ret = ldl_user(T0 & ~3);
266 T0 = ldl_user((T0 + 4) & ~3);
270 case 0xb: /* Supervisor data access */
273 ret = ldub_kernel(T0);
276 ret = lduw_kernel(T0 & ~1);
280 ret = ldl_kernel(T0 & ~3);
283 ret = ldl_kernel(T0 & ~3);
284 T0 = ldl_kernel((T0 + 4) & ~3);
288 case 0xc: /* I-cache tag */
289 case 0xd: /* I-cache data */
290 case 0xe: /* D-cache tag */
291 case 0xf: /* D-cache data */
293 case 0x20: /* MMU passthrough */
299 ret = lduw_phys(T0 & ~1);
303 ret = ldl_phys(T0 & ~3);
306 ret = ldl_phys(T0 & ~3);
307 T0 = ldl_phys((T0 + 4) & ~3);
311 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
312 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
315 ret = ldub_phys((target_phys_addr_t)T0
316 | ((target_phys_addr_t)(asi & 0xf) << 32));
319 ret = lduw_phys((target_phys_addr_t)(T0 & ~1)
320 | ((target_phys_addr_t)(asi & 0xf) << 32));
324 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
325 | ((target_phys_addr_t)(asi & 0xf) << 32));
328 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
329 | ((target_phys_addr_t)(asi & 0xf) << 32));
330 T0 = ldl_phys((target_phys_addr_t)((T0 + 4) & ~3)
331 | ((target_phys_addr_t)(asi & 0xf) << 32));
335 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
337 do_unassigned_access(T0, 0, 0, 1);
358 void helper_st_asi(int asi, int size)
361 case 2: /* SuperSparc MXCC registers */
363 case 0x01c00000: /* MXCC stream data register 0 */
365 env->mxccdata[0] = ((uint64_t)T1 << 32) | T2;
367 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
369 case 0x01c00008: /* MXCC stream data register 1 */
371 env->mxccdata[1] = ((uint64_t)T1 << 32) | T2;
373 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
375 case 0x01c00010: /* MXCC stream data register 2 */
377 env->mxccdata[2] = ((uint64_t)T1 << 32) | T2;
379 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
381 case 0x01c00018: /* MXCC stream data register 3 */
383 env->mxccdata[3] = ((uint64_t)T1 << 32) | T2;
385 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
387 case 0x01c00100: /* MXCC stream source */
389 env->mxccregs[0] = ((uint64_t)T1 << 32) | T2;
391 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
392 env->mxccdata[0] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 0);
393 env->mxccdata[1] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 8);
394 env->mxccdata[2] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 16);
395 env->mxccdata[3] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 24);
397 case 0x01c00200: /* MXCC stream destination */
399 env->mxccregs[1] = ((uint64_t)T1 << 32) | T2;
401 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
402 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 0, env->mxccdata[0]);
403 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 8, env->mxccdata[1]);
404 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 16, env->mxccdata[2]);
405 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 24, env->mxccdata[3]);
407 case 0x01c00a00: /* MXCC control register */
409 env->mxccregs[3] = ((uint64_t)T1 << 32) | T2;
411 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
413 case 0x01c00a04: /* MXCC control register */
415 env->mxccregs[3] = (env->mxccregs[0xa] & 0xffffffff00000000) | T1;
417 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
419 case 0x01c00e00: /* MXCC error register */
421 env->mxccregs[6] = ((uint64_t)T1 << 32) | T2;
423 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
424 if (env->mxccregs[6] == 0xffffffffffffffffULL) {
425 // this is probably a reset
428 case 0x01c00f00: /* MBus port address register */
430 env->mxccregs[7] = ((uint64_t)T1 << 32) | T2;
432 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
435 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
438 DPRINTF_MXCC("asi = %d, size = %d, T0 = %08x, T1 = %08x\n", asi, size, T0, T1);
443 case 3: /* MMU flush */
447 mmulev = (T0 >> 8) & 15;
448 DPRINTF_MMU("mmu flush level %d\n", mmulev);
450 case 0: // flush page
451 tlb_flush_page(env, T0 & 0xfffff000);
453 case 1: // flush segment (256k)
454 case 2: // flush region (16M)
455 case 3: // flush context (4G)
456 case 4: // flush entire
467 case 4: /* write MMU regs */
469 int reg = (T0 >> 8) & 0xf;
472 oldreg = env->mmuregs[reg];
475 env->mmuregs[reg] &= ~(MMU_E | MMU_NF | MMU_BM);
476 env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF | MMU_BM);
477 // Mappings generated during no-fault mode or MMU
478 // disabled mode are invalid in normal mode
479 if (oldreg != env->mmuregs[reg])
483 env->mmuregs[reg] = T1;
484 if (oldreg != env->mmuregs[reg]) {
485 /* we flush when the MMU context changes because
486 QEMU has no MMU context support */
494 env->mmuregs[reg] = T1;
497 if (oldreg != env->mmuregs[reg]) {
498 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
505 case 0xa: /* User data access */
511 stw_user(T0 & ~1, T1);
515 stl_user(T0 & ~3, T1);
518 stl_user(T0 & ~3, T1);
519 stl_user((T0 + 4) & ~3, T2);
523 case 0xb: /* Supervisor data access */
529 stw_kernel(T0 & ~1, T1);
533 stl_kernel(T0 & ~3, T1);
536 stl_kernel(T0 & ~3, T1);
537 stl_kernel((T0 + 4) & ~3, T2);
541 case 0xc: /* I-cache tag */
542 case 0xd: /* I-cache data */
543 case 0xe: /* D-cache tag */
544 case 0xf: /* D-cache data */
545 case 0x10: /* I/D-cache flush page */
546 case 0x11: /* I/D-cache flush segment */
547 case 0x12: /* I/D-cache flush region */
548 case 0x13: /* I/D-cache flush context */
549 case 0x14: /* I/D-cache flush user */
551 case 0x17: /* Block copy, sta access */
554 // address (T0) = dst
557 uint32_t src = T1 & ~3, dst = T0 & ~3, temp;
559 for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
560 temp = ldl_kernel(src);
561 stl_kernel(dst, temp);
565 case 0x1f: /* Block fill, stda access */
568 // address (T0) = dst
571 uint32_t dst = T0 & 7;
574 val = (((uint64_t)T1) << 32) | T2;
576 for (i = 0; i < 32; i += 8, dst += 8)
577 stq_kernel(dst, val);
580 case 0x20: /* MMU passthrough */
587 stw_phys(T0 & ~1, T1);
591 stl_phys(T0 & ~3, T1);
594 stl_phys(T0 & ~3, T1);
595 stl_phys((T0 + 4) & ~3, T2);
600 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
601 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
605 stb_phys((target_phys_addr_t)T0
606 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
609 stw_phys((target_phys_addr_t)(T0 & ~1)
610 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
614 stl_phys((target_phys_addr_t)(T0 & ~3)
615 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
618 stl_phys((target_phys_addr_t)(T0 & ~3)
619 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
620 stl_phys((target_phys_addr_t)((T0 + 4) & ~3)
621 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
626 case 0x31: /* Ross RT620 I-cache flush */
627 case 0x36: /* I-cache flash clear */
628 case 0x37: /* D-cache flash clear */
630 case 9: /* Supervisor code access, XXX */
631 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
633 do_unassigned_access(T0, 1, 0, 1);
638 #endif /* CONFIG_USER_ONLY */
639 #else /* TARGET_SPARC64 */
641 #ifdef CONFIG_USER_ONLY
642 void helper_ld_asi(int asi, int size, int sign)
647 raise_exception(TT_PRIV_ACT);
650 case 0x80: // Primary
651 case 0x82: // Primary no-fault
652 case 0x88: // Primary LE
653 case 0x8a: // Primary no-fault LE
660 ret = lduw_raw(T0 & ~1);
663 ret = ldl_raw(T0 & ~3);
667 ret = ldq_raw(T0 & ~7);
672 case 0x81: // Secondary
673 case 0x83: // Secondary no-fault
674 case 0x89: // Secondary LE
675 case 0x8b: // Secondary no-fault LE
682 /* Convert from little endian */
684 case 0x88: // Primary LE
685 case 0x89: // Secondary LE
686 case 0x8a: // Primary no-fault LE
687 case 0x8b: // Secondary no-fault LE
705 /* Convert to signed number */
724 void helper_st_asi(int asi, int size)
727 raise_exception(TT_PRIV_ACT);
729 /* Convert to little endian */
731 case 0x88: // Primary LE
732 case 0x89: // Secondary LE
751 case 0x80: // Primary
752 case 0x88: // Primary LE
759 stw_raw(T0 & ~1, T1);
762 stl_raw(T0 & ~3, T1);
766 stq_raw(T0 & ~7, T1);
771 case 0x81: // Secondary
772 case 0x89: // Secondary LE
776 case 0x82: // Primary no-fault, RO
777 case 0x83: // Secondary no-fault, RO
778 case 0x8a: // Primary no-fault LE, RO
779 case 0x8b: // Secondary no-fault LE, RO
781 do_unassigned_access(T0, 1, 0, 1);
786 #else /* CONFIG_USER_ONLY */
788 void helper_ld_asi(int asi, int size, int sign)
792 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
793 raise_exception(TT_PRIV_ACT);
796 case 0x10: // As if user primary
797 case 0x18: // As if user primary LE
798 case 0x80: // Primary
799 case 0x82: // Primary no-fault
800 case 0x88: // Primary LE
801 case 0x8a: // Primary no-fault LE
802 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
805 ret = ldub_kernel(T0);
808 ret = lduw_kernel(T0 & ~1);
811 ret = ldl_kernel(T0 & ~3);
815 ret = ldq_kernel(T0 & ~7);
824 ret = lduw_user(T0 & ~1);
827 ret = ldl_user(T0 & ~3);
831 ret = ldq_user(T0 & ~7);
837 case 0x15: // Bypass, non-cacheable
838 case 0x1c: // Bypass LE
839 case 0x1d: // Bypass, non-cacheable LE
846 ret = lduw_phys(T0 & ~1);
849 ret = ldl_phys(T0 & ~3);
853 ret = ldq_phys(T0 & ~7);
858 case 0x04: // Nucleus
859 case 0x0c: // Nucleus Little Endian (LE)
860 case 0x11: // As if user secondary
861 case 0x19: // As if user secondary LE
862 case 0x24: // Nucleus quad LDD 128 bit atomic
863 case 0x2c: // Nucleus quad LDD 128 bit atomic
864 case 0x4a: // UPA config
865 case 0x81: // Secondary
866 case 0x83: // Secondary no-fault
867 case 0x89: // Secondary LE
868 case 0x8b: // Secondary no-fault LE
874 case 0x50: // I-MMU regs
876 int reg = (T0 >> 3) & 0xf;
878 ret = env->immuregs[reg];
881 case 0x51: // I-MMU 8k TSB pointer
882 case 0x52: // I-MMU 64k TSB pointer
883 case 0x55: // I-MMU data access
886 case 0x56: // I-MMU tag read
890 for (i = 0; i < 64; i++) {
891 // Valid, ctx match, vaddr match
892 if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
893 env->itlb_tag[i] == T0) {
894 ret = env->itlb_tag[i];
900 case 0x58: // D-MMU regs
902 int reg = (T0 >> 3) & 0xf;
904 ret = env->dmmuregs[reg];
907 case 0x5e: // D-MMU tag read
911 for (i = 0; i < 64; i++) {
912 // Valid, ctx match, vaddr match
913 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
914 env->dtlb_tag[i] == T0) {
915 ret = env->dtlb_tag[i];
921 case 0x59: // D-MMU 8k TSB pointer
922 case 0x5a: // D-MMU 64k TSB pointer
923 case 0x5b: // D-MMU data pointer
924 case 0x5d: // D-MMU data access
925 case 0x48: // Interrupt dispatch, RO
926 case 0x49: // Interrupt data receive
927 case 0x7f: // Incoming interrupt vector, RO
930 case 0x54: // I-MMU data in, WO
931 case 0x57: // I-MMU demap, WO
932 case 0x5c: // D-MMU data in, WO
933 case 0x5f: // D-MMU demap, WO
934 case 0x77: // Interrupt vector, WO
936 do_unassigned_access(T0, 0, 0, 1);
941 /* Convert from little endian */
943 case 0x0c: // Nucleus Little Endian (LE)
944 case 0x18: // As if user primary LE
945 case 0x19: // As if user secondary LE
946 case 0x1c: // Bypass LE
947 case 0x1d: // Bypass, non-cacheable LE
948 case 0x88: // Primary LE
949 case 0x89: // Secondary LE
950 case 0x8a: // Primary no-fault LE
951 case 0x8b: // Secondary no-fault LE
969 /* Convert to signed number */
988 void helper_st_asi(int asi, int size)
990 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
991 raise_exception(TT_PRIV_ACT);
993 /* Convert to little endian */
995 case 0x0c: // Nucleus Little Endian (LE)
996 case 0x18: // As if user primary LE
997 case 0x19: // As if user secondary LE
998 case 0x1c: // Bypass LE
999 case 0x1d: // Bypass, non-cacheable LE
1000 case 0x88: // Primary LE
1001 case 0x89: // Secondary LE
1020 case 0x10: // As if user primary
1021 case 0x18: // As if user primary LE
1022 case 0x80: // Primary
1023 case 0x88: // Primary LE
1024 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
1030 stw_kernel(T0 & ~1, T1);
1033 stl_kernel(T0 & ~3, T1);
1037 stq_kernel(T0 & ~7, T1);
1046 stw_user(T0 & ~1, T1);
1049 stl_user(T0 & ~3, T1);
1053 stq_user(T0 & ~7, T1);
1058 case 0x14: // Bypass
1059 case 0x15: // Bypass, non-cacheable
1060 case 0x1c: // Bypass LE
1061 case 0x1d: // Bypass, non-cacheable LE
1068 stw_phys(T0 & ~1, T1);
1071 stl_phys(T0 & ~3, T1);
1075 stq_phys(T0 & ~7, T1);
1080 case 0x04: // Nucleus
1081 case 0x0c: // Nucleus Little Endian (LE)
1082 case 0x11: // As if user secondary
1083 case 0x19: // As if user secondary LE
1084 case 0x24: // Nucleus quad LDD 128 bit atomic
1085 case 0x2c: // Nucleus quad LDD 128 bit atomic
1086 case 0x4a: // UPA config
1087 case 0x81: // Secondary
1088 case 0x89: // Secondary LE
1096 env->lsu = T1 & (DMMU_E | IMMU_E);
1097 // Mappings generated during D/I MMU disabled mode are
1098 // invalid in normal mode
1099 if (oldreg != env->lsu) {
1100 DPRINTF_MMU("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
1108 case 0x50: // I-MMU regs
1110 int reg = (T0 >> 3) & 0xf;
1113 oldreg = env->immuregs[reg];
1118 case 1: // Not in I-MMU
1125 T1 = 0; // Clear SFSR
1127 case 5: // TSB access
1128 case 6: // Tag access
1132 env->immuregs[reg] = T1;
1133 if (oldreg != env->immuregs[reg]) {
1134 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1141 case 0x54: // I-MMU data in
1145 // Try finding an invalid entry
1146 for (i = 0; i < 64; i++) {
1147 if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
1148 env->itlb_tag[i] = env->immuregs[6];
1149 env->itlb_tte[i] = T1;
1153 // Try finding an unlocked entry
1154 for (i = 0; i < 64; i++) {
1155 if ((env->itlb_tte[i] & 0x40) == 0) {
1156 env->itlb_tag[i] = env->immuregs[6];
1157 env->itlb_tte[i] = T1;
1164 case 0x55: // I-MMU data access
1166 unsigned int i = (T0 >> 3) & 0x3f;
1168 env->itlb_tag[i] = env->immuregs[6];
1169 env->itlb_tte[i] = T1;
1172 case 0x57: // I-MMU demap
1175 case 0x58: // D-MMU regs
1177 int reg = (T0 >> 3) & 0xf;
1180 oldreg = env->dmmuregs[reg];
1186 if ((T1 & 1) == 0) {
1187 T1 = 0; // Clear SFSR, Fault address
1188 env->dmmuregs[4] = 0;
1190 env->dmmuregs[reg] = T1;
1192 case 1: // Primary context
1193 case 2: // Secondary context
1194 case 5: // TSB access
1195 case 6: // Tag access
1196 case 7: // Virtual Watchpoint
1197 case 8: // Physical Watchpoint
1201 env->dmmuregs[reg] = T1;
1202 if (oldreg != env->dmmuregs[reg]) {
1203 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1210 case 0x5c: // D-MMU data in
1214 // Try finding an invalid entry
1215 for (i = 0; i < 64; i++) {
1216 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
1217 env->dtlb_tag[i] = env->dmmuregs[6];
1218 env->dtlb_tte[i] = T1;
1222 // Try finding an unlocked entry
1223 for (i = 0; i < 64; i++) {
1224 if ((env->dtlb_tte[i] & 0x40) == 0) {
1225 env->dtlb_tag[i] = env->dmmuregs[6];
1226 env->dtlb_tte[i] = T1;
1233 case 0x5d: // D-MMU data access
1235 unsigned int i = (T0 >> 3) & 0x3f;
1237 env->dtlb_tag[i] = env->dmmuregs[6];
1238 env->dtlb_tte[i] = T1;
1241 case 0x5f: // D-MMU demap
1242 case 0x49: // Interrupt data receive
1245 case 0x51: // I-MMU 8k TSB pointer, RO
1246 case 0x52: // I-MMU 64k TSB pointer, RO
1247 case 0x56: // I-MMU tag read, RO
1248 case 0x59: // D-MMU 8k TSB pointer, RO
1249 case 0x5a: // D-MMU 64k TSB pointer, RO
1250 case 0x5b: // D-MMU data pointer, RO
1251 case 0x5e: // D-MMU tag read, RO
1252 case 0x48: // Interrupt dispatch, RO
1253 case 0x7f: // Incoming interrupt vector, RO
1254 case 0x82: // Primary no-fault, RO
1255 case 0x83: // Secondary no-fault, RO
1256 case 0x8a: // Primary no-fault LE, RO
1257 case 0x8b: // Secondary no-fault LE, RO
1259 do_unassigned_access(T0, 1, 0, 1);
1263 #endif /* CONFIG_USER_ONLY */
1265 void helper_ldf_asi(int asi, int size, int rd)
1267 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1271 case 0xf0: // Block load primary
1272 case 0xf1: // Block load secondary
1273 case 0xf8: // Block load primary LE
1274 case 0xf9: // Block load secondary LE
1276 raise_exception(TT_ILL_INSN);
1280 raise_exception(TT_UNALIGNED);
1283 for (i = 0; i < 16; i++) {
1284 helper_ld_asi(asi & 0x8f, 4, 0);
1285 *(uint32_t *)&env->fpr[rd++] = T1;
1296 helper_ld_asi(asi, size, 0);
1300 *((uint32_t *)&FT0) = T1;
1303 *((int64_t *)&DT0) = T1;
1309 void helper_stf_asi(int asi, int size, int rd)
1311 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1315 case 0xf0: // Block store primary
1316 case 0xf1: // Block store secondary
1317 case 0xf8: // Block store primary LE
1318 case 0xf9: // Block store secondary LE
1320 raise_exception(TT_ILL_INSN);
1324 raise_exception(TT_UNALIGNED);
1327 for (i = 0; i < 16; i++) {
1328 T1 = *(uint32_t *)&env->fpr[rd++];
1329 helper_st_asi(asi & 0x8f, 4);
1343 T1 = *((uint32_t *)&FT0);
1346 T1 = *((int64_t *)&DT0);
1349 helper_st_asi(asi, size);
1353 #endif /* TARGET_SPARC64 */
1355 #ifndef TARGET_SPARC64
1360 if (env->psret == 1)
1361 raise_exception(TT_ILL_INSN);
1364 cwp = (env->cwp + 1) & (NWINDOWS - 1);
1365 if (env->wim & (1 << cwp)) {
1366 raise_exception(TT_WIN_UNF);
1369 env->psrs = env->psrps;
1373 void helper_ldfsr(void)
1376 switch (env->fsr & FSR_RD_MASK) {
1377 case FSR_RD_NEAREST:
1378 rnd_mode = float_round_nearest_even;
1382 rnd_mode = float_round_to_zero;
1385 rnd_mode = float_round_up;
1388 rnd_mode = float_round_down;
1391 set_float_rounding_mode(rnd_mode, &env->fp_status);
1396 env->exception_index = EXCP_DEBUG;
1400 #ifndef TARGET_SPARC64
1403 if ((T0 & PSR_CWP) >= NWINDOWS)
1404 raise_exception(TT_ILL_INSN);
1418 T0 = (T1 & 0x5555555555555555ULL) + ((T1 >> 1) & 0x5555555555555555ULL);
1419 T0 = (T0 & 0x3333333333333333ULL) + ((T0 >> 2) & 0x3333333333333333ULL);
1420 T0 = (T0 & 0x0f0f0f0f0f0f0f0fULL) + ((T0 >> 4) & 0x0f0f0f0f0f0f0f0fULL);
1421 T0 = (T0 & 0x00ff00ff00ff00ffULL) + ((T0 >> 8) & 0x00ff00ff00ff00ffULL);
1422 T0 = (T0 & 0x0000ffff0000ffffULL) + ((T0 >> 16) & 0x0000ffff0000ffffULL);
1423 T0 = (T0 & 0x00000000ffffffffULL) + ((T0 >> 32) & 0x00000000ffffffffULL);
1426 static inline uint64_t *get_gregset(uint64_t pstate)
1441 static inline void change_pstate(uint64_t new_pstate)
1443 uint64_t pstate_regs, new_pstate_regs;
1444 uint64_t *src, *dst;
1446 pstate_regs = env->pstate & 0xc01;
1447 new_pstate_regs = new_pstate & 0xc01;
1448 if (new_pstate_regs != pstate_regs) {
1449 // Switch global register bank
1450 src = get_gregset(new_pstate_regs);
1451 dst = get_gregset(pstate_regs);
1452 memcpy32(dst, env->gregs);
1453 memcpy32(env->gregs, src);
1455 env->pstate = new_pstate;
1458 void do_wrpstate(void)
1460 change_pstate(T0 & 0xf3f);
1466 env->pc = env->tnpc[env->tl];
1467 env->npc = env->tnpc[env->tl] + 4;
1468 PUT_CCR(env, env->tstate[env->tl] >> 32);
1469 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1470 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1471 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1477 env->pc = env->tpc[env->tl];
1478 env->npc = env->tnpc[env->tl];
1479 PUT_CCR(env, env->tstate[env->tl] >> 32);
1480 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1481 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1482 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1486 void set_cwp(int new_cwp)
1488 /* put the modified wrap registers at their proper location */
1489 if (env->cwp == (NWINDOWS - 1))
1490 memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
1492 /* put the wrap registers at their temporary location */
1493 if (new_cwp == (NWINDOWS - 1))
1494 memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
1495 env->regwptr = env->regbase + (new_cwp * 16);
1496 REGWPTR = env->regwptr;
1499 void cpu_set_cwp(CPUState *env1, int new_cwp)
1501 CPUState *saved_env;
1503 target_ulong *saved_regwptr;
1508 saved_regwptr = REGWPTR;
1514 REGWPTR = saved_regwptr;
1518 #ifdef TARGET_SPARC64
1519 void do_interrupt(int intno)
1522 if (loglevel & CPU_LOG_INT) {
1524 fprintf(logfile, "%6d: v=%04x pc=%016" PRIx64 " npc=%016" PRIx64 " SP=%016" PRIx64 "\n",
1527 env->npc, env->regwptr[6]);
1528 cpu_dump_state(env, logfile, fprintf, 0);
1534 fprintf(logfile, " code=");
1535 ptr = (uint8_t *)env->pc;
1536 for(i = 0; i < 16; i++) {
1537 fprintf(logfile, " %02x", ldub(ptr + i));
1539 fprintf(logfile, "\n");
1545 #if !defined(CONFIG_USER_ONLY)
1546 if (env->tl == MAXTL) {
1547 cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
1551 env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
1552 ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
1553 env->tpc[env->tl] = env->pc;
1554 env->tnpc[env->tl] = env->npc;
1555 env->tt[env->tl] = intno;
1556 change_pstate(PS_PEF | PS_PRIV | PS_AG);
1558 if (intno == TT_CLRWIN)
1559 set_cwp((env->cwp - 1) & (NWINDOWS - 1));
1560 else if ((intno & 0x1c0) == TT_SPILL)
1561 set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
1562 else if ((intno & 0x1c0) == TT_FILL)
1563 set_cwp((env->cwp + 1) & (NWINDOWS - 1));
1564 env->tbr &= ~0x7fffULL;
1565 env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
1566 if (env->tl < MAXTL - 1) {
1569 env->pstate |= PS_RED;
1570 if (env->tl != MAXTL)
1574 env->npc = env->pc + 4;
1575 env->exception_index = 0;
1578 void do_interrupt(int intno)
1583 if (loglevel & CPU_LOG_INT) {
1585 fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",
1588 env->npc, env->regwptr[6]);
1589 cpu_dump_state(env, logfile, fprintf, 0);
1595 fprintf(logfile, " code=");
1596 ptr = (uint8_t *)env->pc;
1597 for(i = 0; i < 16; i++) {
1598 fprintf(logfile, " %02x", ldub(ptr + i));
1600 fprintf(logfile, "\n");
1606 #if !defined(CONFIG_USER_ONLY)
1607 if (env->psret == 0) {
1608 cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
1613 cwp = (env->cwp - 1) & (NWINDOWS - 1);
1615 env->regwptr[9] = env->pc;
1616 env->regwptr[10] = env->npc;
1617 env->psrps = env->psrs;
1619 env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
1621 env->npc = env->pc + 4;
1622 env->exception_index = 0;
1626 #if !defined(CONFIG_USER_ONLY)
1628 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1631 #define MMUSUFFIX _mmu
1632 #define ALIGNED_ONLY
1633 #define GETPC() (__builtin_return_address(0))
1636 #include "softmmu_template.h"
1639 #include "softmmu_template.h"
1642 #include "softmmu_template.h"
1645 #include "softmmu_template.h"
1647 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1650 #ifdef DEBUG_UNALIGNED
1651 printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
1653 raise_exception(TT_UNALIGNED);
1656 /* try to fill the TLB and return an exception if error. If retaddr is
1657 NULL, it means that the function was called in C code (i.e. not
1658 from generated code or from helper.c) */
1659 /* XXX: fix it to restore all registers */
1660 void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
1662 TranslationBlock *tb;
1665 CPUState *saved_env;
1667 /* XXX: hack to restore env in all cases, even if not called from
1670 env = cpu_single_env;
1672 ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
1675 /* now we have a real cpu fault */
1676 pc = (unsigned long)retaddr;
1677 tb = tb_find_pc(pc);
1679 /* the PC is inside the translated code. It means that we have
1680 a virtual CPU fault */
1681 cpu_restore_state(tb, env, pc, (void *)T2);
1691 #ifndef TARGET_SPARC64
1692 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1695 CPUState *saved_env;
1697 /* XXX: hack to restore env in all cases, even if not called from
1700 env = cpu_single_env;
1701 if (env->mmuregs[3]) /* Fault status register */
1702 env->mmuregs[3] = 1; /* overflow (not read before another fault) */
1704 env->mmuregs[3] |= 1 << 16;
1706 env->mmuregs[3] |= 1 << 5;
1708 env->mmuregs[3] |= 1 << 6;
1710 env->mmuregs[3] |= 1 << 7;
1711 env->mmuregs[3] |= (5 << 2) | 2;
1712 env->mmuregs[4] = addr; /* Fault address register */
1713 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
1714 #ifdef DEBUG_UNASSIGNED
1715 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
1716 "\n", addr, env->pc);
1719 raise_exception(TT_CODE_ACCESS);
1721 raise_exception(TT_DATA_ACCESS);
1726 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1729 #ifdef DEBUG_UNASSIGNED
1730 CPUState *saved_env;
1732 /* XXX: hack to restore env in all cases, even if not called from
1735 env = cpu_single_env;
1736 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
1741 raise_exception(TT_CODE_ACCESS);
1743 raise_exception(TT_DATA_ACCESS);
1747 #ifdef TARGET_SPARC64
1748 void do_tick_set_count(void *opaque, uint64_t count)
1750 #if !defined(CONFIG_USER_ONLY)
1751 ptimer_set_count(opaque, -count);
1755 uint64_t do_tick_get_count(void *opaque)
1757 #if !defined(CONFIG_USER_ONLY)
1758 return -ptimer_get_count(opaque);
1764 void do_tick_set_limit(void *opaque, uint64_t limit)
1766 #if !defined(CONFIG_USER_ONLY)
1767 ptimer_set_limit(opaque, -limit, 0);