2 #include "host-utils.h"
7 //#define DEBUG_UNALIGNED
8 //#define DEBUG_UNASSIGNED
12 #define DPRINTF_MMU(fmt, args...) \
13 do { printf("MMU: " fmt , ##args); } while (0)
15 #define DPRINTF_MMU(fmt, args...)
19 #define DPRINTF_MXCC(fmt, args...) \
20 do { printf("MXCC: " fmt , ##args); } while (0)
22 #define DPRINTF_MXCC(fmt, args...)
26 #define DPRINTF_ASI(fmt, args...) \
27 do { printf("ASI: " fmt , ##args); } while (0)
29 #define DPRINTF_ASI(fmt, args...)
32 void raise_exception(int tt)
34 env->exception_index = tt;
38 void check_ieee_exceptions()
40 T0 = get_float_exception_flags(&env->fp_status);
43 /* Copy IEEE 754 flags into FSR */
44 if (T0 & float_flag_invalid)
46 if (T0 & float_flag_overflow)
48 if (T0 & float_flag_underflow)
50 if (T0 & float_flag_divbyzero)
52 if (T0 & float_flag_inexact)
55 if ((env->fsr & FSR_CEXC_MASK) & ((env->fsr & FSR_TEM_MASK) >> 23))
57 /* Unmasked exception, generate a trap */
58 env->fsr |= FSR_FTT_IEEE_EXCP;
59 raise_exception(TT_FP_EXCP);
63 /* Accumulate exceptions */
64 env->fsr |= (env->fsr & FSR_CEXC_MASK) << 5;
69 #ifdef USE_INT_TO_FLOAT_HELPERS
72 set_float_exception_flags(0, &env->fp_status);
73 FT0 = int32_to_float32(*((int32_t *)&FT1), &env->fp_status);
74 check_ieee_exceptions();
79 DT0 = int32_to_float64(*((int32_t *)&FT1), &env->fp_status);
82 #if defined(CONFIG_USER_ONLY)
85 QT0 = int32_to_float128(*((int32_t *)&FT1), &env->fp_status);
92 set_float_exception_flags(0, &env->fp_status);
93 FT0 = int64_to_float32(*((int64_t *)&DT1), &env->fp_status);
94 check_ieee_exceptions();
99 set_float_exception_flags(0, &env->fp_status);
100 DT0 = int64_to_float64(*((int64_t *)&DT1), &env->fp_status);
101 check_ieee_exceptions();
104 #if defined(CONFIG_USER_ONLY)
107 set_float_exception_flags(0, &env->fp_status);
108 QT0 = int64_to_float128(*((int32_t *)&DT1), &env->fp_status);
109 check_ieee_exceptions();
117 FT0 = float32_abs(FT1);
120 #ifdef TARGET_SPARC64
123 DT0 = float64_abs(DT1);
126 #if defined(CONFIG_USER_ONLY)
129 QT0 = float128_abs(QT1);
136 set_float_exception_flags(0, &env->fp_status);
137 FT0 = float32_sqrt(FT1, &env->fp_status);
138 check_ieee_exceptions();
143 set_float_exception_flags(0, &env->fp_status);
144 DT0 = float64_sqrt(DT1, &env->fp_status);
145 check_ieee_exceptions();
148 #if defined(CONFIG_USER_ONLY)
151 set_float_exception_flags(0, &env->fp_status);
152 QT0 = float128_sqrt(QT1, &env->fp_status);
153 check_ieee_exceptions();
157 #define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
158 void glue(do_, name) (void) \
160 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
161 switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
162 case float_relation_unordered: \
163 T0 = (FSR_FCC1 | FSR_FCC0) << FS; \
164 if ((env->fsr & FSR_NVM) || TRAP) { \
166 env->fsr |= FSR_NVC; \
167 env->fsr |= FSR_FTT_IEEE_EXCP; \
168 raise_exception(TT_FP_EXCP); \
170 env->fsr |= FSR_NVA; \
173 case float_relation_less: \
174 T0 = FSR_FCC0 << FS; \
176 case float_relation_greater: \
177 T0 = FSR_FCC1 << FS; \
186 GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
187 GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
189 GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
190 GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
192 #ifdef CONFIG_USER_ONLY
193 GEN_FCMP(fcmpq, float128, QT0, QT1, 0, 0);
194 GEN_FCMP(fcmpeq, float128, QT0, QT1, 0, 1);
197 #ifdef TARGET_SPARC64
198 GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
199 GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
201 GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
202 GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
204 GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
205 GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
207 GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
208 GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
210 GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
211 GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
213 GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
214 GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
215 #ifdef CONFIG_USER_ONLY
216 GEN_FCMP(fcmpq_fcc1, float128, QT0, QT1, 22, 0);
217 GEN_FCMP(fcmpq_fcc2, float128, QT0, QT1, 24, 0);
218 GEN_FCMP(fcmpq_fcc3, float128, QT0, QT1, 26, 0);
219 GEN_FCMP(fcmpeq_fcc1, float128, QT0, QT1, 22, 1);
220 GEN_FCMP(fcmpeq_fcc2, float128, QT0, QT1, 24, 1);
221 GEN_FCMP(fcmpeq_fcc3, float128, QT0, QT1, 26, 1);
225 #ifndef TARGET_SPARC64
226 #ifndef CONFIG_USER_ONLY
229 static void dump_mxcc(CPUState *env)
231 printf("mxccdata: %016llx %016llx %016llx %016llx\n",
232 env->mxccdata[0], env->mxccdata[1], env->mxccdata[2], env->mxccdata[3]);
233 printf("mxccregs: %016llx %016llx %016llx %016llx\n"
234 " %016llx %016llx %016llx %016llx\n",
235 env->mxccregs[0], env->mxccregs[1], env->mxccregs[2], env->mxccregs[3],
236 env->mxccregs[4], env->mxccregs[5], env->mxccregs[6], env->mxccregs[7]);
241 static void dump_asi(const char * txt, uint32_t addr, int asi, int size,
242 uint32_t r1, uint32_t r2)
247 DPRINTF_ASI("%s %08x asi 0x%02x = %02x\n", txt, addr, asi, r1 & 0xff);
250 DPRINTF_ASI("%s %08x asi 0x%02x = %04x\n", txt, addr, asi, r1 & 0xffff);
253 DPRINTF_ASI("%s %08x asi 0x%02x = %08x\n", txt, addr, asi, r1);
256 DPRINTF_ASI("%s %08x asi 0x%02x = %016llx\n", txt, addr, asi,
257 r2 | ((uint64_t)r1 << 32));
263 void helper_ld_asi(int asi, int size, int sign)
267 #if defined(DEBUG_MXCC) || defined(DEBUG_ASI)
268 uint32_t last_T0 = T0;
272 case 2: /* SuperSparc MXCC registers */
274 case 0x01c00a00: /* MXCC control register */
276 ret = env->mxccregs[3] >> 32;
277 T0 = env->mxccregs[3];
279 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
281 case 0x01c00a04: /* MXCC control register */
283 ret = env->mxccregs[3];
285 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
287 case 0x01c00c00: /* Module reset register */
289 ret = env->mxccregs[5] >> 32;
290 T0 = env->mxccregs[5];
291 // should we do something here?
293 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
295 case 0x01c00f00: /* MBus port address register */
297 ret = env->mxccregs[7] >> 32;
298 T0 = env->mxccregs[7];
300 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
303 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
306 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, T0 = %08x -> ret = %08x,"
307 "T0 = %08x\n", asi, size, sign, last_T0, ret, T0);
312 case 3: /* MMU probe */
316 mmulev = (T0 >> 8) & 15;
320 ret = mmu_probe(env, T0, mmulev);
323 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
326 case 4: /* read MMU regs */
328 int reg = (T0 >> 8) & 0x1f;
330 ret = env->mmuregs[reg];
331 if (reg == 3) /* Fault status cleared on read */
333 else if (reg == 0x13) /* Fault status read */
334 ret = env->mmuregs[3];
335 else if (reg == 0x14) /* Fault address read */
336 ret = env->mmuregs[4];
337 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
340 case 9: /* Supervisor code access */
346 ret = lduw_code(T0 & ~1);
350 ret = ldl_code(T0 & ~3);
353 tmp = ldq_code(T0 & ~7);
359 case 0xa: /* User data access */
365 ret = lduw_user(T0 & ~1);
369 ret = ldl_user(T0 & ~3);
372 tmp = ldq_user(T0 & ~7);
378 case 0xb: /* Supervisor data access */
381 ret = ldub_kernel(T0);
384 ret = lduw_kernel(T0 & ~1);
388 ret = ldl_kernel(T0 & ~3);
391 tmp = ldq_kernel(T0 & ~7);
397 case 0xc: /* I-cache tag */
398 case 0xd: /* I-cache data */
399 case 0xe: /* D-cache tag */
400 case 0xf: /* D-cache data */
402 case 0x20: /* MMU passthrough */
408 ret = lduw_phys(T0 & ~1);
412 ret = ldl_phys(T0 & ~3);
415 tmp = ldq_phys(T0 & ~7);
421 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
424 ret = ldub_phys((target_phys_addr_t)T0
425 | ((target_phys_addr_t)(asi & 0xf) << 32));
428 ret = lduw_phys((target_phys_addr_t)(T0 & ~1)
429 | ((target_phys_addr_t)(asi & 0xf) << 32));
433 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
434 | ((target_phys_addr_t)(asi & 0xf) << 32));
437 tmp = ldq_phys((target_phys_addr_t)(T0 & ~7)
438 | ((target_phys_addr_t)(asi & 0xf) << 32));
444 case 0x39: /* data cache diagnostic register */
448 do_unassigned_access(T0, 0, 0, asi);
468 dump_asi("read ", last_T0, asi, size, T1, T0);
472 void helper_st_asi(int asi, int size)
475 case 2: /* SuperSparc MXCC registers */
477 case 0x01c00000: /* MXCC stream data register 0 */
479 env->mxccdata[0] = ((uint64_t)T1 << 32) | T2;
481 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
483 case 0x01c00008: /* MXCC stream data register 1 */
485 env->mxccdata[1] = ((uint64_t)T1 << 32) | T2;
487 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
489 case 0x01c00010: /* MXCC stream data register 2 */
491 env->mxccdata[2] = ((uint64_t)T1 << 32) | T2;
493 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
495 case 0x01c00018: /* MXCC stream data register 3 */
497 env->mxccdata[3] = ((uint64_t)T1 << 32) | T2;
499 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
501 case 0x01c00100: /* MXCC stream source */
503 env->mxccregs[0] = ((uint64_t)T1 << 32) | T2;
505 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
506 env->mxccdata[0] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 0);
507 env->mxccdata[1] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 8);
508 env->mxccdata[2] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 16);
509 env->mxccdata[3] = ldq_phys((env->mxccregs[0] & 0xffffffffULL) + 24);
511 case 0x01c00200: /* MXCC stream destination */
513 env->mxccregs[1] = ((uint64_t)T1 << 32) | T2;
515 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
516 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 0, env->mxccdata[0]);
517 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 8, env->mxccdata[1]);
518 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 16, env->mxccdata[2]);
519 stq_phys((env->mxccregs[1] & 0xffffffffULL) + 24, env->mxccdata[3]);
521 case 0x01c00a00: /* MXCC control register */
523 env->mxccregs[3] = ((uint64_t)T1 << 32) | T2;
525 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
527 case 0x01c00a04: /* MXCC control register */
529 env->mxccregs[3] = (env->mxccregs[0xa] & 0xffffffff00000000ULL) | T1;
531 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
533 case 0x01c00e00: /* MXCC error register */
534 // writing a 1 bit clears the error
536 env->mxccregs[6] &= ~(((uint64_t)T1 << 32) | T2);
538 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
540 case 0x01c00f00: /* MBus port address register */
542 env->mxccregs[7] = ((uint64_t)T1 << 32) | T2;
544 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
547 DPRINTF_MXCC("%08x: unimplemented address, size: %d\n", T0, size);
550 DPRINTF_MXCC("asi = %d, size = %d, T0 = %08x, T1 = %08x\n", asi, size, T0, T1);
555 case 3: /* MMU flush */
559 mmulev = (T0 >> 8) & 15;
560 DPRINTF_MMU("mmu flush level %d\n", mmulev);
562 case 0: // flush page
563 tlb_flush_page(env, T0 & 0xfffff000);
565 case 1: // flush segment (256k)
566 case 2: // flush region (16M)
567 case 3: // flush context (4G)
568 case 4: // flush entire
579 case 4: /* write MMU regs */
581 int reg = (T0 >> 8) & 0x1f;
584 oldreg = env->mmuregs[reg];
587 env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) |
589 // Mappings generated during no-fault mode or MMU
590 // disabled mode are invalid in normal mode
591 if ((oldreg & (MMU_E | MMU_NF | env->mmu_bm)) !=
592 (env->mmuregs[reg] & (MMU_E | MMU_NF | env->mmu_bm)))
596 env->mmuregs[reg] = T1;
597 if (oldreg != env->mmuregs[reg]) {
598 /* we flush when the MMU context changes because
599 QEMU has no MMU context support */
607 env->mmuregs[3] = T1;
610 env->mmuregs[4] = T1;
613 env->mmuregs[reg] = T1;
616 if (oldreg != env->mmuregs[reg]) {
617 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
624 case 0xa: /* User data access */
630 stw_user(T0 & ~1, T1);
634 stl_user(T0 & ~3, T1);
637 stq_user(T0 & ~7, ((uint64_t)T1 << 32) | T2);
641 case 0xb: /* Supervisor data access */
647 stw_kernel(T0 & ~1, T1);
651 stl_kernel(T0 & ~3, T1);
654 stq_kernel(T0 & ~7, ((uint64_t)T1 << 32) | T2);
658 case 0xc: /* I-cache tag */
659 case 0xd: /* I-cache data */
660 case 0xe: /* D-cache tag */
661 case 0xf: /* D-cache data */
662 case 0x10: /* I/D-cache flush page */
663 case 0x11: /* I/D-cache flush segment */
664 case 0x12: /* I/D-cache flush region */
665 case 0x13: /* I/D-cache flush context */
666 case 0x14: /* I/D-cache flush user */
668 case 0x17: /* Block copy, sta access */
671 // address (T0) = dst
674 uint32_t src = T1 & ~3, dst = T0 & ~3, temp;
676 for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
677 temp = ldl_kernel(src);
678 stl_kernel(dst, temp);
682 case 0x1f: /* Block fill, stda access */
685 // address (T0) = dst
688 uint32_t dst = T0 & 7;
691 val = (((uint64_t)T1) << 32) | T2;
693 for (i = 0; i < 32; i += 8, dst += 8)
694 stq_kernel(dst, val);
697 case 0x20: /* MMU passthrough */
704 stw_phys(T0 & ~1, T1);
708 stl_phys(T0 & ~3, T1);
711 stq_phys(T0 & ~7, ((uint64_t)T1 << 32) | T2);
716 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
717 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
721 stb_phys((target_phys_addr_t)T0
722 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
725 stw_phys((target_phys_addr_t)(T0 & ~1)
726 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
730 stl_phys((target_phys_addr_t)(T0 & ~3)
731 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
734 stq_phys((target_phys_addr_t)(T0 & ~7)
735 | ((target_phys_addr_t)(asi & 0xf) << 32),
736 ((uint64_t)T1 << 32) | T2);
741 case 0x30: /* store buffer tags */
742 case 0x31: /* store buffer data or Ross RT620 I-cache flush */
743 case 0x32: /* store buffer control */
744 case 0x36: /* I-cache flash clear */
745 case 0x37: /* D-cache flash clear */
746 case 0x38: /* breakpoint diagnostics */
747 case 0x4c: /* breakpoint action */
749 case 9: /* Supervisor code access, XXX */
750 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
752 do_unassigned_access(T0, 1, 0, asi);
756 dump_asi("write", T0, asi, size, T1, T2);
760 #endif /* CONFIG_USER_ONLY */
761 #else /* TARGET_SPARC64 */
763 #ifdef CONFIG_USER_ONLY
764 void helper_ld_asi(int asi, int size, int sign)
769 raise_exception(TT_PRIV_ACT);
772 case 0x80: // Primary
773 case 0x82: // Primary no-fault
774 case 0x88: // Primary LE
775 case 0x8a: // Primary no-fault LE
782 ret = lduw_raw(T0 & ~1);
785 ret = ldl_raw(T0 & ~3);
789 ret = ldq_raw(T0 & ~7);
794 case 0x81: // Secondary
795 case 0x83: // Secondary no-fault
796 case 0x89: // Secondary LE
797 case 0x8b: // Secondary no-fault LE
804 /* Convert from little endian */
806 case 0x88: // Primary LE
807 case 0x89: // Secondary LE
808 case 0x8a: // Primary no-fault LE
809 case 0x8b: // Secondary no-fault LE
827 /* Convert to signed number */
846 void helper_st_asi(int asi, int size)
849 raise_exception(TT_PRIV_ACT);
851 /* Convert to little endian */
853 case 0x88: // Primary LE
854 case 0x89: // Secondary LE
873 case 0x80: // Primary
874 case 0x88: // Primary LE
881 stw_raw(T0 & ~1, T1);
884 stl_raw(T0 & ~3, T1);
888 stq_raw(T0 & ~7, T1);
893 case 0x81: // Secondary
894 case 0x89: // Secondary LE
898 case 0x82: // Primary no-fault, RO
899 case 0x83: // Secondary no-fault, RO
900 case 0x8a: // Primary no-fault LE, RO
901 case 0x8b: // Secondary no-fault LE, RO
903 do_unassigned_access(T0, 1, 0, 1);
908 #else /* CONFIG_USER_ONLY */
910 void helper_ld_asi(int asi, int size, int sign)
914 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
915 || (asi >= 0x30 && asi < 0x80 && !(env->hpstate & HS_PRIV)))
916 raise_exception(TT_PRIV_ACT);
919 case 0x10: // As if user primary
920 case 0x18: // As if user primary LE
921 case 0x80: // Primary
922 case 0x82: // Primary no-fault
923 case 0x88: // Primary LE
924 case 0x8a: // Primary no-fault LE
925 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
926 if (env->hpstate & HS_PRIV) {
932 ret = lduw_hypv(T0 & ~1);
935 ret = ldl_hypv(T0 & ~3);
939 ret = ldq_hypv(T0 & ~7);
945 ret = ldub_kernel(T0);
948 ret = lduw_kernel(T0 & ~1);
951 ret = ldl_kernel(T0 & ~3);
955 ret = ldq_kernel(T0 & ~7);
965 ret = lduw_user(T0 & ~1);
968 ret = ldl_user(T0 & ~3);
972 ret = ldq_user(T0 & ~7);
978 case 0x15: // Bypass, non-cacheable
979 case 0x1c: // Bypass LE
980 case 0x1d: // Bypass, non-cacheable LE
987 ret = lduw_phys(T0 & ~1);
990 ret = ldl_phys(T0 & ~3);
994 ret = ldq_phys(T0 & ~7);
999 case 0x04: // Nucleus
1000 case 0x0c: // Nucleus Little Endian (LE)
1001 case 0x11: // As if user secondary
1002 case 0x19: // As if user secondary LE
1003 case 0x24: // Nucleus quad LDD 128 bit atomic
1004 case 0x2c: // Nucleus quad LDD 128 bit atomic
1005 case 0x4a: // UPA config
1006 case 0x81: // Secondary
1007 case 0x83: // Secondary no-fault
1008 case 0x89: // Secondary LE
1009 case 0x8b: // Secondary no-fault LE
1015 case 0x50: // I-MMU regs
1017 int reg = (T0 >> 3) & 0xf;
1019 ret = env->immuregs[reg];
1022 case 0x51: // I-MMU 8k TSB pointer
1023 case 0x52: // I-MMU 64k TSB pointer
1024 case 0x55: // I-MMU data access
1027 case 0x56: // I-MMU tag read
1031 for (i = 0; i < 64; i++) {
1032 // Valid, ctx match, vaddr match
1033 if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
1034 env->itlb_tag[i] == T0) {
1035 ret = env->itlb_tag[i];
1041 case 0x58: // D-MMU regs
1043 int reg = (T0 >> 3) & 0xf;
1045 ret = env->dmmuregs[reg];
1048 case 0x5e: // D-MMU tag read
1052 for (i = 0; i < 64; i++) {
1053 // Valid, ctx match, vaddr match
1054 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
1055 env->dtlb_tag[i] == T0) {
1056 ret = env->dtlb_tag[i];
1062 case 0x59: // D-MMU 8k TSB pointer
1063 case 0x5a: // D-MMU 64k TSB pointer
1064 case 0x5b: // D-MMU data pointer
1065 case 0x5d: // D-MMU data access
1066 case 0x48: // Interrupt dispatch, RO
1067 case 0x49: // Interrupt data receive
1068 case 0x7f: // Incoming interrupt vector, RO
1071 case 0x54: // I-MMU data in, WO
1072 case 0x57: // I-MMU demap, WO
1073 case 0x5c: // D-MMU data in, WO
1074 case 0x5f: // D-MMU demap, WO
1075 case 0x77: // Interrupt vector, WO
1077 do_unassigned_access(T0, 0, 0, 1);
1082 /* Convert from little endian */
1084 case 0x0c: // Nucleus Little Endian (LE)
1085 case 0x18: // As if user primary LE
1086 case 0x19: // As if user secondary LE
1087 case 0x1c: // Bypass LE
1088 case 0x1d: // Bypass, non-cacheable LE
1089 case 0x88: // Primary LE
1090 case 0x89: // Secondary LE
1091 case 0x8a: // Primary no-fault LE
1092 case 0x8b: // Secondary no-fault LE
1110 /* Convert to signed number */
1117 ret = (int16_t) ret;
1120 ret = (int32_t) ret;
1129 void helper_st_asi(int asi, int size)
1131 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
1132 || (asi >= 0x30 && asi < 0x80 && !(env->hpstate & HS_PRIV)))
1133 raise_exception(TT_PRIV_ACT);
1135 /* Convert to little endian */
1137 case 0x0c: // Nucleus Little Endian (LE)
1138 case 0x18: // As if user primary LE
1139 case 0x19: // As if user secondary LE
1140 case 0x1c: // Bypass LE
1141 case 0x1d: // Bypass, non-cacheable LE
1142 case 0x88: // Primary LE
1143 case 0x89: // Secondary LE
1162 case 0x10: // As if user primary
1163 case 0x18: // As if user primary LE
1164 case 0x80: // Primary
1165 case 0x88: // Primary LE
1166 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
1167 if (env->hpstate & HS_PRIV) {
1173 stw_hypv(T0 & ~1, T1);
1176 stl_hypv(T0 & ~3, T1);
1180 stq_hypv(T0 & ~7, T1);
1189 stw_kernel(T0 & ~1, T1);
1192 stl_kernel(T0 & ~3, T1);
1196 stq_kernel(T0 & ~7, T1);
1206 stw_user(T0 & ~1, T1);
1209 stl_user(T0 & ~3, T1);
1213 stq_user(T0 & ~7, T1);
1218 case 0x14: // Bypass
1219 case 0x15: // Bypass, non-cacheable
1220 case 0x1c: // Bypass LE
1221 case 0x1d: // Bypass, non-cacheable LE
1228 stw_phys(T0 & ~1, T1);
1231 stl_phys(T0 & ~3, T1);
1235 stq_phys(T0 & ~7, T1);
1240 case 0x04: // Nucleus
1241 case 0x0c: // Nucleus Little Endian (LE)
1242 case 0x11: // As if user secondary
1243 case 0x19: // As if user secondary LE
1244 case 0x24: // Nucleus quad LDD 128 bit atomic
1245 case 0x2c: // Nucleus quad LDD 128 bit atomic
1246 case 0x4a: // UPA config
1247 case 0x81: // Secondary
1248 case 0x89: // Secondary LE
1256 env->lsu = T1 & (DMMU_E | IMMU_E);
1257 // Mappings generated during D/I MMU disabled mode are
1258 // invalid in normal mode
1259 if (oldreg != env->lsu) {
1260 DPRINTF_MMU("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
1268 case 0x50: // I-MMU regs
1270 int reg = (T0 >> 3) & 0xf;
1273 oldreg = env->immuregs[reg];
1278 case 1: // Not in I-MMU
1285 T1 = 0; // Clear SFSR
1287 case 5: // TSB access
1288 case 6: // Tag access
1292 env->immuregs[reg] = T1;
1293 if (oldreg != env->immuregs[reg]) {
1294 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1301 case 0x54: // I-MMU data in
1305 // Try finding an invalid entry
1306 for (i = 0; i < 64; i++) {
1307 if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
1308 env->itlb_tag[i] = env->immuregs[6];
1309 env->itlb_tte[i] = T1;
1313 // Try finding an unlocked entry
1314 for (i = 0; i < 64; i++) {
1315 if ((env->itlb_tte[i] & 0x40) == 0) {
1316 env->itlb_tag[i] = env->immuregs[6];
1317 env->itlb_tte[i] = T1;
1324 case 0x55: // I-MMU data access
1326 unsigned int i = (T0 >> 3) & 0x3f;
1328 env->itlb_tag[i] = env->immuregs[6];
1329 env->itlb_tte[i] = T1;
1332 case 0x57: // I-MMU demap
1335 case 0x58: // D-MMU regs
1337 int reg = (T0 >> 3) & 0xf;
1340 oldreg = env->dmmuregs[reg];
1346 if ((T1 & 1) == 0) {
1347 T1 = 0; // Clear SFSR, Fault address
1348 env->dmmuregs[4] = 0;
1350 env->dmmuregs[reg] = T1;
1352 case 1: // Primary context
1353 case 2: // Secondary context
1354 case 5: // TSB access
1355 case 6: // Tag access
1356 case 7: // Virtual Watchpoint
1357 case 8: // Physical Watchpoint
1361 env->dmmuregs[reg] = T1;
1362 if (oldreg != env->dmmuregs[reg]) {
1363 DPRINTF_MMU("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1370 case 0x5c: // D-MMU data in
1374 // Try finding an invalid entry
1375 for (i = 0; i < 64; i++) {
1376 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
1377 env->dtlb_tag[i] = env->dmmuregs[6];
1378 env->dtlb_tte[i] = T1;
1382 // Try finding an unlocked entry
1383 for (i = 0; i < 64; i++) {
1384 if ((env->dtlb_tte[i] & 0x40) == 0) {
1385 env->dtlb_tag[i] = env->dmmuregs[6];
1386 env->dtlb_tte[i] = T1;
1393 case 0x5d: // D-MMU data access
1395 unsigned int i = (T0 >> 3) & 0x3f;
1397 env->dtlb_tag[i] = env->dmmuregs[6];
1398 env->dtlb_tte[i] = T1;
1401 case 0x5f: // D-MMU demap
1402 case 0x49: // Interrupt data receive
1405 case 0x51: // I-MMU 8k TSB pointer, RO
1406 case 0x52: // I-MMU 64k TSB pointer, RO
1407 case 0x56: // I-MMU tag read, RO
1408 case 0x59: // D-MMU 8k TSB pointer, RO
1409 case 0x5a: // D-MMU 64k TSB pointer, RO
1410 case 0x5b: // D-MMU data pointer, RO
1411 case 0x5e: // D-MMU tag read, RO
1412 case 0x48: // Interrupt dispatch, RO
1413 case 0x7f: // Incoming interrupt vector, RO
1414 case 0x82: // Primary no-fault, RO
1415 case 0x83: // Secondary no-fault, RO
1416 case 0x8a: // Primary no-fault LE, RO
1417 case 0x8b: // Secondary no-fault LE, RO
1419 do_unassigned_access(T0, 1, 0, 1);
1423 #endif /* CONFIG_USER_ONLY */
1425 void helper_ldf_asi(int asi, int size, int rd)
1427 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1431 case 0xf0: // Block load primary
1432 case 0xf1: // Block load secondary
1433 case 0xf8: // Block load primary LE
1434 case 0xf9: // Block load secondary LE
1436 raise_exception(TT_ILL_INSN);
1440 raise_exception(TT_UNALIGNED);
1443 for (i = 0; i < 16; i++) {
1444 helper_ld_asi(asi & 0x8f, 4, 0);
1445 *(uint32_t *)&env->fpr[rd++] = T1;
1456 helper_ld_asi(asi, size, 0);
1460 *((uint32_t *)&FT0) = T1;
1463 *((int64_t *)&DT0) = T1;
1465 #if defined(CONFIG_USER_ONLY)
1474 void helper_stf_asi(int asi, int size, int rd)
1476 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1480 case 0xf0: // Block store primary
1481 case 0xf1: // Block store secondary
1482 case 0xf8: // Block store primary LE
1483 case 0xf9: // Block store secondary LE
1485 raise_exception(TT_ILL_INSN);
1489 raise_exception(TT_UNALIGNED);
1492 for (i = 0; i < 16; i++) {
1493 T1 = *(uint32_t *)&env->fpr[rd++];
1494 helper_st_asi(asi & 0x8f, 4);
1508 T1 = *((uint32_t *)&FT0);
1511 T1 = *((int64_t *)&DT0);
1513 #if defined(CONFIG_USER_ONLY)
1519 helper_st_asi(asi, size);
1523 #endif /* TARGET_SPARC64 */
1525 #ifndef TARGET_SPARC64
1530 if (env->psret == 1)
1531 raise_exception(TT_ILL_INSN);
1534 cwp = (env->cwp + 1) & (NWINDOWS - 1);
1535 if (env->wim & (1 << cwp)) {
1536 raise_exception(TT_WIN_UNF);
1539 env->psrs = env->psrps;
1543 void helper_ldfsr(void)
1546 switch (env->fsr & FSR_RD_MASK) {
1547 case FSR_RD_NEAREST:
1548 rnd_mode = float_round_nearest_even;
1552 rnd_mode = float_round_to_zero;
1555 rnd_mode = float_round_up;
1558 rnd_mode = float_round_down;
1561 set_float_rounding_mode(rnd_mode, &env->fp_status);
1566 env->exception_index = EXCP_DEBUG;
1570 #ifndef TARGET_SPARC64
1573 if ((T0 & PSR_CWP) >= NWINDOWS)
1574 raise_exception(TT_ILL_INSN);
1591 static inline uint64_t *get_gregset(uint64_t pstate)
1606 static inline void change_pstate(uint64_t new_pstate)
1608 uint64_t pstate_regs, new_pstate_regs;
1609 uint64_t *src, *dst;
1611 pstate_regs = env->pstate & 0xc01;
1612 new_pstate_regs = new_pstate & 0xc01;
1613 if (new_pstate_regs != pstate_regs) {
1614 // Switch global register bank
1615 src = get_gregset(new_pstate_regs);
1616 dst = get_gregset(pstate_regs);
1617 memcpy32(dst, env->gregs);
1618 memcpy32(env->gregs, src);
1620 env->pstate = new_pstate;
1623 void do_wrpstate(void)
1625 change_pstate(T0 & 0xf3f);
1631 env->pc = env->tnpc[env->tl];
1632 env->npc = env->tnpc[env->tl] + 4;
1633 PUT_CCR(env, env->tstate[env->tl] >> 32);
1634 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1635 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1636 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1642 env->pc = env->tpc[env->tl];
1643 env->npc = env->tnpc[env->tl];
1644 PUT_CCR(env, env->tstate[env->tl] >> 32);
1645 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1646 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1647 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1651 void set_cwp(int new_cwp)
1653 /* put the modified wrap registers at their proper location */
1654 if (env->cwp == (NWINDOWS - 1))
1655 memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
1657 /* put the wrap registers at their temporary location */
1658 if (new_cwp == (NWINDOWS - 1))
1659 memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
1660 env->regwptr = env->regbase + (new_cwp * 16);
1661 REGWPTR = env->regwptr;
1664 void cpu_set_cwp(CPUState *env1, int new_cwp)
1666 CPUState *saved_env;
1668 target_ulong *saved_regwptr;
1673 saved_regwptr = REGWPTR;
1679 REGWPTR = saved_regwptr;
1683 #ifdef TARGET_SPARC64
1685 static const char * const excp_names[0x50] = {
1686 [TT_TFAULT] = "Instruction Access Fault",
1687 [TT_TMISS] = "Instruction Access MMU Miss",
1688 [TT_CODE_ACCESS] = "Instruction Access Error",
1689 [TT_ILL_INSN] = "Illegal Instruction",
1690 [TT_PRIV_INSN] = "Privileged Instruction",
1691 [TT_NFPU_INSN] = "FPU Disabled",
1692 [TT_FP_EXCP] = "FPU Exception",
1693 [TT_TOVF] = "Tag Overflow",
1694 [TT_CLRWIN] = "Clean Windows",
1695 [TT_DIV_ZERO] = "Division By Zero",
1696 [TT_DFAULT] = "Data Access Fault",
1697 [TT_DMISS] = "Data Access MMU Miss",
1698 [TT_DATA_ACCESS] = "Data Access Error",
1699 [TT_DPROT] = "Data Protection Error",
1700 [TT_UNALIGNED] = "Unaligned Memory Access",
1701 [TT_PRIV_ACT] = "Privileged Action",
1702 [TT_EXTINT | 0x1] = "External Interrupt 1",
1703 [TT_EXTINT | 0x2] = "External Interrupt 2",
1704 [TT_EXTINT | 0x3] = "External Interrupt 3",
1705 [TT_EXTINT | 0x4] = "External Interrupt 4",
1706 [TT_EXTINT | 0x5] = "External Interrupt 5",
1707 [TT_EXTINT | 0x6] = "External Interrupt 6",
1708 [TT_EXTINT | 0x7] = "External Interrupt 7",
1709 [TT_EXTINT | 0x8] = "External Interrupt 8",
1710 [TT_EXTINT | 0x9] = "External Interrupt 9",
1711 [TT_EXTINT | 0xa] = "External Interrupt 10",
1712 [TT_EXTINT | 0xb] = "External Interrupt 11",
1713 [TT_EXTINT | 0xc] = "External Interrupt 12",
1714 [TT_EXTINT | 0xd] = "External Interrupt 13",
1715 [TT_EXTINT | 0xe] = "External Interrupt 14",
1716 [TT_EXTINT | 0xf] = "External Interrupt 15",
1720 void do_interrupt(int intno)
1723 if (loglevel & CPU_LOG_INT) {
1727 if (intno < 0 || intno >= 0x180 || (intno > 0x4f && intno < 0x80))
1729 else if (intno >= 0x100)
1730 name = "Trap Instruction";
1731 else if (intno >= 0xc0)
1732 name = "Window Fill";
1733 else if (intno >= 0x80)
1734 name = "Window Spill";
1736 name = excp_names[intno];
1741 fprintf(logfile, "%6d: %s (v=%04x) pc=%016" PRIx64 " npc=%016" PRIx64
1742 " SP=%016" PRIx64 "\n",
1745 env->npc, env->regwptr[6]);
1746 cpu_dump_state(env, logfile, fprintf, 0);
1752 fprintf(logfile, " code=");
1753 ptr = (uint8_t *)env->pc;
1754 for(i = 0; i < 16; i++) {
1755 fprintf(logfile, " %02x", ldub(ptr + i));
1757 fprintf(logfile, "\n");
1763 #if !defined(CONFIG_USER_ONLY)
1764 if (env->tl == MAXTL) {
1765 cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
1769 env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
1770 ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
1771 env->tpc[env->tl] = env->pc;
1772 env->tnpc[env->tl] = env->npc;
1773 env->tt[env->tl] = intno;
1774 change_pstate(PS_PEF | PS_PRIV | PS_AG);
1776 if (intno == TT_CLRWIN)
1777 set_cwp((env->cwp - 1) & (NWINDOWS - 1));
1778 else if ((intno & 0x1c0) == TT_SPILL)
1779 set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
1780 else if ((intno & 0x1c0) == TT_FILL)
1781 set_cwp((env->cwp + 1) & (NWINDOWS - 1));
1782 env->tbr &= ~0x7fffULL;
1783 env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
1784 if (env->tl < MAXTL - 1) {
1787 env->pstate |= PS_RED;
1788 if (env->tl != MAXTL)
1792 env->npc = env->pc + 4;
1793 env->exception_index = 0;
1797 static const char * const excp_names[0x80] = {
1798 [TT_TFAULT] = "Instruction Access Fault",
1799 [TT_ILL_INSN] = "Illegal Instruction",
1800 [TT_PRIV_INSN] = "Privileged Instruction",
1801 [TT_NFPU_INSN] = "FPU Disabled",
1802 [TT_WIN_OVF] = "Window Overflow",
1803 [TT_WIN_UNF] = "Window Underflow",
1804 [TT_UNALIGNED] = "Unaligned Memory Access",
1805 [TT_FP_EXCP] = "FPU Exception",
1806 [TT_DFAULT] = "Data Access Fault",
1807 [TT_TOVF] = "Tag Overflow",
1808 [TT_EXTINT | 0x1] = "External Interrupt 1",
1809 [TT_EXTINT | 0x2] = "External Interrupt 2",
1810 [TT_EXTINT | 0x3] = "External Interrupt 3",
1811 [TT_EXTINT | 0x4] = "External Interrupt 4",
1812 [TT_EXTINT | 0x5] = "External Interrupt 5",
1813 [TT_EXTINT | 0x6] = "External Interrupt 6",
1814 [TT_EXTINT | 0x7] = "External Interrupt 7",
1815 [TT_EXTINT | 0x8] = "External Interrupt 8",
1816 [TT_EXTINT | 0x9] = "External Interrupt 9",
1817 [TT_EXTINT | 0xa] = "External Interrupt 10",
1818 [TT_EXTINT | 0xb] = "External Interrupt 11",
1819 [TT_EXTINT | 0xc] = "External Interrupt 12",
1820 [TT_EXTINT | 0xd] = "External Interrupt 13",
1821 [TT_EXTINT | 0xe] = "External Interrupt 14",
1822 [TT_EXTINT | 0xf] = "External Interrupt 15",
1823 [TT_TOVF] = "Tag Overflow",
1824 [TT_CODE_ACCESS] = "Instruction Access Error",
1825 [TT_DATA_ACCESS] = "Data Access Error",
1826 [TT_DIV_ZERO] = "Division By Zero",
1827 [TT_NCP_INSN] = "Coprocessor Disabled",
1831 void do_interrupt(int intno)
1836 if (loglevel & CPU_LOG_INT) {
1840 if (intno < 0 || intno >= 0x100)
1842 else if (intno >= 0x80)
1843 name = "Trap Instruction";
1845 name = excp_names[intno];
1850 fprintf(logfile, "%6d: %s (v=%02x) pc=%08x npc=%08x SP=%08x\n",
1853 env->npc, env->regwptr[6]);
1854 cpu_dump_state(env, logfile, fprintf, 0);
1860 fprintf(logfile, " code=");
1861 ptr = (uint8_t *)env->pc;
1862 for(i = 0; i < 16; i++) {
1863 fprintf(logfile, " %02x", ldub(ptr + i));
1865 fprintf(logfile, "\n");
1871 #if !defined(CONFIG_USER_ONLY)
1872 if (env->psret == 0) {
1873 cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
1878 cwp = (env->cwp - 1) & (NWINDOWS - 1);
1880 env->regwptr[9] = env->pc;
1881 env->regwptr[10] = env->npc;
1882 env->psrps = env->psrs;
1884 env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
1886 env->npc = env->pc + 4;
1887 env->exception_index = 0;
1891 #if !defined(CONFIG_USER_ONLY)
1893 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1896 #define MMUSUFFIX _mmu
1897 #define ALIGNED_ONLY
1899 # define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
1901 # define GETPC() (__builtin_return_address(0))
1905 #include "softmmu_template.h"
1908 #include "softmmu_template.h"
1911 #include "softmmu_template.h"
1914 #include "softmmu_template.h"
1916 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1919 #ifdef DEBUG_UNALIGNED
1920 printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
1922 raise_exception(TT_UNALIGNED);
1925 /* try to fill the TLB and return an exception if error. If retaddr is
1926 NULL, it means that the function was called in C code (i.e. not
1927 from generated code or from helper.c) */
1928 /* XXX: fix it to restore all registers */
1929 void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
1931 TranslationBlock *tb;
1934 CPUState *saved_env;
1936 /* XXX: hack to restore env in all cases, even if not called from
1939 env = cpu_single_env;
1941 ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
1944 /* now we have a real cpu fault */
1945 pc = (unsigned long)retaddr;
1946 tb = tb_find_pc(pc);
1948 /* the PC is inside the translated code. It means that we have
1949 a virtual CPU fault */
1950 cpu_restore_state(tb, env, pc, (void *)T2);
1960 #ifndef TARGET_SPARC64
1961 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1964 CPUState *saved_env;
1966 /* XXX: hack to restore env in all cases, even if not called from
1969 env = cpu_single_env;
1970 #ifdef DEBUG_UNASSIGNED
1972 printf("Unassigned mem %s access to " TARGET_FMT_plx " asi 0x%02x from "
1974 is_exec ? "exec" : is_write ? "write" : "read", addr, is_asi,
1977 printf("Unassigned mem %s access to " TARGET_FMT_plx " from "
1979 is_exec ? "exec" : is_write ? "write" : "read", addr, env->pc);
1981 if (env->mmuregs[3]) /* Fault status register */
1982 env->mmuregs[3] = 1; /* overflow (not read before another fault) */
1984 env->mmuregs[3] |= 1 << 16;
1986 env->mmuregs[3] |= 1 << 5;
1988 env->mmuregs[3] |= 1 << 6;
1990 env->mmuregs[3] |= 1 << 7;
1991 env->mmuregs[3] |= (5 << 2) | 2;
1992 env->mmuregs[4] = addr; /* Fault address register */
1993 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
1995 raise_exception(TT_CODE_ACCESS);
1997 raise_exception(TT_DATA_ACCESS);
2002 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
2005 #ifdef DEBUG_UNASSIGNED
2006 CPUState *saved_env;
2008 /* XXX: hack to restore env in all cases, even if not called from
2011 env = cpu_single_env;
2012 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
2017 raise_exception(TT_CODE_ACCESS);
2019 raise_exception(TT_DATA_ACCESS);