2 * Helpers for loads and stores
4 * Copyright (c) 2003-2005 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
23 #include "exec/helper-proto.h"
24 #include "exec/exec-all.h"
25 #include "exec/cpu_ldst.h"
30 //#define DEBUG_UNALIGNED
31 //#define DEBUG_UNASSIGNED
33 //#define DEBUG_CACHE_CONTROL
36 #define DPRINTF_MMU(fmt, ...) \
37 do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0)
39 #define DPRINTF_MMU(fmt, ...) do {} while (0)
43 #define DPRINTF_MXCC(fmt, ...) \
44 do { printf("MXCC: " fmt , ## __VA_ARGS__); } while (0)
46 #define DPRINTF_MXCC(fmt, ...) do {} while (0)
50 #define DPRINTF_ASI(fmt, ...) \
51 do { printf("ASI: " fmt , ## __VA_ARGS__); } while (0)
54 #ifdef DEBUG_CACHE_CONTROL
55 #define DPRINTF_CACHE_CONTROL(fmt, ...) \
56 do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0)
58 #define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0)
63 #define AM_CHECK(env1) ((env1)->pstate & PS_AM)
65 #define AM_CHECK(env1) (1)
69 #define QT0 (env->qt0)
70 #define QT1 (env->qt1)
72 #if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
73 /* Calculates TSB pointer value for fault page size 8k or 64k */
74 static uint64_t ultrasparc_tsb_pointer(uint64_t tsb_register,
75 uint64_t tag_access_register,
78 uint64_t tsb_base = tsb_register & ~0x1fffULL;
79 int tsb_split = (tsb_register & 0x1000ULL) ? 1 : 0;
80 int tsb_size = tsb_register & 0xf;
82 /* discard lower 13 bits which hold tag access context */
83 uint64_t tag_access_va = tag_access_register & ~0x1fffULL;
85 /* now reorder bits */
86 uint64_t tsb_base_mask = ~0x1fffULL;
87 uint64_t va = tag_access_va;
89 /* move va bits to correct position */
90 if (page_size == 8*1024) {
92 } else if (page_size == 64*1024) {
97 tsb_base_mask <<= tsb_size;
100 /* calculate tsb_base mask and adjust va if split is in use */
102 if (page_size == 8*1024) {
103 va &= ~(1ULL << (13 + tsb_size));
104 } else if (page_size == 64*1024) {
105 va |= (1ULL << (13 + tsb_size));
110 return ((tsb_base & tsb_base_mask) | (va & ~tsb_base_mask)) & ~0xfULL;
113 /* Calculates tag target register value by reordering bits
114 in tag access register */
115 static uint64_t ultrasparc_tag_target(uint64_t tag_access_register)
117 return ((tag_access_register & 0x1fff) << 48) | (tag_access_register >> 22);
120 static void replace_tlb_entry(SparcTLBEntry *tlb,
121 uint64_t tlb_tag, uint64_t tlb_tte,
124 target_ulong mask, size, va, offset;
126 /* flush page range if translation is valid */
127 if (TTE_IS_VALID(tlb->tte)) {
128 CPUState *cs = CPU(sparc_env_get_cpu(env1));
130 mask = 0xffffffffffffe000ULL;
131 mask <<= 3 * ((tlb->tte >> 61) & 3);
134 va = tlb->tag & mask;
136 for (offset = 0; offset < size; offset += TARGET_PAGE_SIZE) {
137 tlb_flush_page(cs, va + offset);
145 static void demap_tlb(SparcTLBEntry *tlb, target_ulong demap_addr,
146 const char *strmmu, CPUSPARCState *env1)
152 int is_demap_context = (demap_addr >> 6) & 1;
155 switch ((demap_addr >> 4) & 3) {
156 case 0: /* primary */
157 context = env1->dmmu.mmu_primary_context;
159 case 1: /* secondary */
160 context = env1->dmmu.mmu_secondary_context;
162 case 2: /* nucleus */
165 case 3: /* reserved */
170 for (i = 0; i < 64; i++) {
171 if (TTE_IS_VALID(tlb[i].tte)) {
173 if (is_demap_context) {
174 /* will remove non-global entries matching context value */
175 if (TTE_IS_GLOBAL(tlb[i].tte) ||
176 !tlb_compare_context(&tlb[i], context)) {
181 will remove any entry matching VA */
182 mask = 0xffffffffffffe000ULL;
183 mask <<= 3 * ((tlb[i].tte >> 61) & 3);
185 if (!compare_masked(demap_addr, tlb[i].tag, mask)) {
189 /* entry should be global or matching context value */
190 if (!TTE_IS_GLOBAL(tlb[i].tte) &&
191 !tlb_compare_context(&tlb[i], context)) {
196 replace_tlb_entry(&tlb[i], 0, 0, env1);
198 DPRINTF_MMU("%s demap invalidated entry [%02u]\n", strmmu, i);
199 dump_mmu(stdout, fprintf, env1);
205 static void replace_tlb_1bit_lru(SparcTLBEntry *tlb,
206 uint64_t tlb_tag, uint64_t tlb_tte,
207 const char *strmmu, CPUSPARCState *env1)
209 unsigned int i, replace_used;
211 /* Try replacing invalid entry */
212 for (i = 0; i < 64; i++) {
213 if (!TTE_IS_VALID(tlb[i].tte)) {
214 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
216 DPRINTF_MMU("%s lru replaced invalid entry [%i]\n", strmmu, i);
217 dump_mmu(stdout, fprintf, env1);
223 /* All entries are valid, try replacing unlocked entry */
225 for (replace_used = 0; replace_used < 2; ++replace_used) {
227 /* Used entries are not replaced on first pass */
229 for (i = 0; i < 64; i++) {
230 if (!TTE_IS_LOCKED(tlb[i].tte) && !TTE_IS_USED(tlb[i].tte)) {
232 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
234 DPRINTF_MMU("%s lru replaced unlocked %s entry [%i]\n",
235 strmmu, (replace_used ? "used" : "unused"), i);
236 dump_mmu(stdout, fprintf, env1);
242 /* Now reset used bit and search for unused entries again */
244 for (i = 0; i < 64; i++) {
245 TTE_SET_UNUSED(tlb[i].tte);
250 DPRINTF_MMU("%s lru replacement failed: no entries available\n", strmmu);
257 #ifdef TARGET_SPARC64
258 /* returns true if access using this ASI is to have address translated by MMU
259 otherwise access is to raw physical address */
260 /* TODO: check sparc32 bits */
261 static inline int is_translating_asi(int asi)
263 /* Ultrasparc IIi translating asi
264 - note this list is defined by cpu implementation
281 static inline target_ulong address_mask(CPUSPARCState *env1, target_ulong addr)
283 if (AM_CHECK(env1)) {
284 addr &= 0xffffffffULL;
289 static inline target_ulong asi_address_mask(CPUSPARCState *env,
290 int asi, target_ulong addr)
292 if (is_translating_asi(asi)) {
293 addr = address_mask(env, addr);
299 static void do_check_align(CPUSPARCState *env, target_ulong addr,
300 uint32_t align, uintptr_t ra)
303 #ifdef DEBUG_UNALIGNED
304 printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
305 "\n", addr, env->pc);
307 cpu_raise_exception_ra(env, TT_UNALIGNED, ra);
311 void helper_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align)
313 do_check_align(env, addr, align, GETPC());
316 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && \
318 static void dump_mxcc(CPUSPARCState *env)
320 printf("mxccdata: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
322 env->mxccdata[0], env->mxccdata[1],
323 env->mxccdata[2], env->mxccdata[3]);
324 printf("mxccregs: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
326 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
328 env->mxccregs[0], env->mxccregs[1],
329 env->mxccregs[2], env->mxccregs[3],
330 env->mxccregs[4], env->mxccregs[5],
331 env->mxccregs[6], env->mxccregs[7]);
335 #if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \
336 && defined(DEBUG_ASI)
337 static void dump_asi(const char *txt, target_ulong addr, int asi, int size,
342 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt,
343 addr, asi, r1 & 0xff);
346 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt,
347 addr, asi, r1 & 0xffff);
350 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt,
351 addr, asi, r1 & 0xffffffff);
354 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt,
361 #ifndef TARGET_SPARC64
362 #ifndef CONFIG_USER_ONLY
365 /* Leon3 cache control */
367 static void leon3_cache_control_st(CPUSPARCState *env, target_ulong addr,
368 uint64_t val, int size)
370 DPRINTF_CACHE_CONTROL("st addr:%08x, val:%" PRIx64 ", size:%d\n",
374 DPRINTF_CACHE_CONTROL("32bits only\n");
379 case 0x00: /* Cache control */
381 /* These values must always be read as zeros */
382 val &= ~CACHE_CTRL_FD;
383 val &= ~CACHE_CTRL_FI;
384 val &= ~CACHE_CTRL_IB;
385 val &= ~CACHE_CTRL_IP;
386 val &= ~CACHE_CTRL_DP;
388 env->cache_control = val;
390 case 0x04: /* Instruction cache configuration */
391 case 0x08: /* Data cache configuration */
395 DPRINTF_CACHE_CONTROL("write unknown register %08x\n", addr);
400 static uint64_t leon3_cache_control_ld(CPUSPARCState *env, target_ulong addr,
406 DPRINTF_CACHE_CONTROL("32bits only\n");
411 case 0x00: /* Cache control */
412 ret = env->cache_control;
415 /* Configuration registers are read and only always keep those
418 case 0x04: /* Instruction cache configuration */
421 case 0x08: /* Data cache configuration */
425 DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr);
428 DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n",
433 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
434 int asi, uint32_t memop)
436 int size = 1 << (memop & MO_SIZE);
437 int sign = memop & MO_SIGN;
438 CPUState *cs = CPU(sparc_env_get_cpu(env));
440 #if defined(DEBUG_MXCC) || defined(DEBUG_ASI)
441 uint32_t last_addr = addr;
444 do_check_align(env, addr, size - 1, GETPC());
446 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
447 /* case ASI_LEON_CACHEREGS: Leon3 cache control */
449 case 0x00: /* Leon3 Cache Control */
450 case 0x08: /* Leon3 Instruction Cache config */
451 case 0x0C: /* Leon3 Date Cache config */
452 if (env->def->features & CPU_FEATURE_CACHE_CTRL) {
453 ret = leon3_cache_control_ld(env, addr, size);
456 case 0x01c00a00: /* MXCC control register */
458 ret = env->mxccregs[3];
460 qemu_log_mask(LOG_UNIMP,
461 "%08x: unimplemented access size: %d\n", addr,
465 case 0x01c00a04: /* MXCC control register */
467 ret = env->mxccregs[3];
469 qemu_log_mask(LOG_UNIMP,
470 "%08x: unimplemented access size: %d\n", addr,
474 case 0x01c00c00: /* Module reset register */
476 ret = env->mxccregs[5];
477 /* should we do something here? */
479 qemu_log_mask(LOG_UNIMP,
480 "%08x: unimplemented access size: %d\n", addr,
484 case 0x01c00f00: /* MBus port address register */
486 ret = env->mxccregs[7];
488 qemu_log_mask(LOG_UNIMP,
489 "%08x: unimplemented access size: %d\n", addr,
494 qemu_log_mask(LOG_UNIMP,
495 "%08x: unimplemented address, size: %d\n", addr,
499 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, "
500 "addr = %08x -> ret = %" PRIx64 ","
501 "addr = %08x\n", asi, size, sign, last_addr, ret, addr);
506 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU probe */
507 case ASI_LEON_MMUFLUSH: /* LEON3 MMU probe */
511 mmulev = (addr >> 8) & 15;
515 ret = mmu_probe(env, addr, mmulev);
517 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
521 case ASI_M_MMUREGS: /* SuperSparc MMU regs */
522 case ASI_LEON_MMUREGS: /* LEON3 MMU regs */
524 int reg = (addr >> 8) & 0x1f;
526 ret = env->mmuregs[reg];
527 if (reg == 3) { /* Fault status cleared on read */
529 } else if (reg == 0x13) { /* Fault status read */
530 ret = env->mmuregs[3];
531 } else if (reg == 0x14) { /* Fault address read */
532 ret = env->mmuregs[4];
534 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret);
537 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
538 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
539 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
541 case ASI_KERNELTXT: /* Supervisor code access */
544 ret = cpu_ldub_code(env, addr);
547 ret = cpu_lduw_code(env, addr);
551 ret = cpu_ldl_code(env, addr);
554 ret = cpu_ldq_code(env, addr);
558 case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */
559 case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */
560 case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */
561 case ASI_M_DATAC_DATA: /* SparcStation 5 D-cache data */
563 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
566 ret = ldub_phys(cs->as, (hwaddr)addr
567 | ((hwaddr)(asi & 0xf) << 32));
570 ret = lduw_phys(cs->as, (hwaddr)addr
571 | ((hwaddr)(asi & 0xf) << 32));
575 ret = ldl_phys(cs->as, (hwaddr)addr
576 | ((hwaddr)(asi & 0xf) << 32));
579 ret = ldq_phys(cs->as, (hwaddr)addr
580 | ((hwaddr)(asi & 0xf) << 32));
584 case 0x30: /* Turbosparc secondary cache diagnostic */
585 case 0x31: /* Turbosparc RAM snoop */
586 case 0x32: /* Turbosparc page table descriptor diagnostic */
587 case 0x39: /* data cache diagnostic register */
590 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers */
592 int reg = (addr >> 8) & 3;
595 case 0: /* Breakpoint Value (Addr) */
596 ret = env->mmubpregs[reg];
598 case 1: /* Breakpoint Mask */
599 ret = env->mmubpregs[reg];
601 case 2: /* Breakpoint Control */
602 ret = env->mmubpregs[reg];
604 case 3: /* Breakpoint Status */
605 ret = env->mmubpregs[reg];
606 env->mmubpregs[reg] = 0ULL;
609 DPRINTF_MMU("read breakpoint reg[%d] 0x%016" PRIx64 "\n", reg,
613 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
614 ret = env->mmubpctrv;
616 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
617 ret = env->mmubpctrc;
619 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
620 ret = env->mmubpctrs;
622 case 0x4c: /* SuperSPARC MMU Breakpoint Action */
623 ret = env->mmubpaction;
625 case ASI_USERTXT: /* User code access, XXX */
627 cpu_unassigned_access(cs, addr, false, false, asi, size);
631 case ASI_USERDATA: /* User data access */
632 case ASI_KERNELDATA: /* Supervisor data access */
633 case ASI_P: /* Implicit primary context data access (v9 only?) */
634 case ASI_M_BYPASS: /* MMU passthrough */
635 case ASI_LEON_BYPASS: /* LEON MMU passthrough */
636 /* These are always handled inline. */
637 g_assert_not_reached();
655 dump_asi("read ", last_addr, asi, size, ret);
660 void helper_st_asi(CPUSPARCState *env, target_ulong addr, uint64_t val,
661 int asi, uint32_t memop)
663 int size = 1 << (memop & MO_SIZE);
664 SPARCCPU *cpu = sparc_env_get_cpu(env);
665 CPUState *cs = CPU(cpu);
667 do_check_align(env, addr, size - 1, GETPC());
669 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
670 /* case ASI_LEON_CACHEREGS: Leon3 cache control */
672 case 0x00: /* Leon3 Cache Control */
673 case 0x08: /* Leon3 Instruction Cache config */
674 case 0x0C: /* Leon3 Date Cache config */
675 if (env->def->features & CPU_FEATURE_CACHE_CTRL) {
676 leon3_cache_control_st(env, addr, val, size);
680 case 0x01c00000: /* MXCC stream data register 0 */
682 env->mxccdata[0] = val;
684 qemu_log_mask(LOG_UNIMP,
685 "%08x: unimplemented access size: %d\n", addr,
689 case 0x01c00008: /* MXCC stream data register 1 */
691 env->mxccdata[1] = val;
693 qemu_log_mask(LOG_UNIMP,
694 "%08x: unimplemented access size: %d\n", addr,
698 case 0x01c00010: /* MXCC stream data register 2 */
700 env->mxccdata[2] = val;
702 qemu_log_mask(LOG_UNIMP,
703 "%08x: unimplemented access size: %d\n", addr,
707 case 0x01c00018: /* MXCC stream data register 3 */
709 env->mxccdata[3] = val;
711 qemu_log_mask(LOG_UNIMP,
712 "%08x: unimplemented access size: %d\n", addr,
716 case 0x01c00100: /* MXCC stream source */
718 env->mxccregs[0] = val;
720 qemu_log_mask(LOG_UNIMP,
721 "%08x: unimplemented access size: %d\n", addr,
724 env->mxccdata[0] = ldq_phys(cs->as,
725 (env->mxccregs[0] & 0xffffffffULL) +
727 env->mxccdata[1] = ldq_phys(cs->as,
728 (env->mxccregs[0] & 0xffffffffULL) +
730 env->mxccdata[2] = ldq_phys(cs->as,
731 (env->mxccregs[0] & 0xffffffffULL) +
733 env->mxccdata[3] = ldq_phys(cs->as,
734 (env->mxccregs[0] & 0xffffffffULL) +
737 case 0x01c00200: /* MXCC stream destination */
739 env->mxccregs[1] = val;
741 qemu_log_mask(LOG_UNIMP,
742 "%08x: unimplemented access size: %d\n", addr,
745 stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 0,
747 stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 8,
749 stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 16,
751 stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 24,
754 case 0x01c00a00: /* MXCC control register */
756 env->mxccregs[3] = val;
758 qemu_log_mask(LOG_UNIMP,
759 "%08x: unimplemented access size: %d\n", addr,
763 case 0x01c00a04: /* MXCC control register */
765 env->mxccregs[3] = (env->mxccregs[3] & 0xffffffff00000000ULL)
768 qemu_log_mask(LOG_UNIMP,
769 "%08x: unimplemented access size: %d\n", addr,
773 case 0x01c00e00: /* MXCC error register */
774 /* writing a 1 bit clears the error */
776 env->mxccregs[6] &= ~val;
778 qemu_log_mask(LOG_UNIMP,
779 "%08x: unimplemented access size: %d\n", addr,
783 case 0x01c00f00: /* MBus port address register */
785 env->mxccregs[7] = val;
787 qemu_log_mask(LOG_UNIMP,
788 "%08x: unimplemented access size: %d\n", addr,
793 qemu_log_mask(LOG_UNIMP,
794 "%08x: unimplemented address, size: %d\n", addr,
798 DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %" PRIx64 "\n",
799 asi, size, addr, val);
804 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU flush */
805 case ASI_LEON_MMUFLUSH: /* LEON3 MMU flush */
809 mmulev = (addr >> 8) & 15;
810 DPRINTF_MMU("mmu flush level %d\n", mmulev);
812 case 0: /* flush page */
813 tlb_flush_page(CPU(cpu), addr & 0xfffff000);
815 case 1: /* flush segment (256k) */
816 case 2: /* flush region (16M) */
817 case 3: /* flush context (4G) */
818 case 4: /* flush entire */
819 tlb_flush(CPU(cpu), 1);
825 dump_mmu(stdout, fprintf, env);
829 case ASI_M_MMUREGS: /* write MMU regs */
830 case ASI_LEON_MMUREGS: /* LEON3 write MMU regs */
832 int reg = (addr >> 8) & 0x1f;
835 oldreg = env->mmuregs[reg];
837 case 0: /* Control Register */
838 env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) |
840 /* Mappings generated during no-fault mode
841 are invalid in normal mode. */
842 if ((oldreg ^ env->mmuregs[reg])
843 & (MMU_NF | env->def->mmu_bm)) {
844 tlb_flush(CPU(cpu), 1);
847 case 1: /* Context Table Pointer Register */
848 env->mmuregs[reg] = val & env->def->mmu_ctpr_mask;
850 case 2: /* Context Register */
851 env->mmuregs[reg] = val & env->def->mmu_cxr_mask;
852 if (oldreg != env->mmuregs[reg]) {
853 /* we flush when the MMU context changes because
854 QEMU has no MMU context support */
855 tlb_flush(CPU(cpu), 1);
858 case 3: /* Synchronous Fault Status Register with Clear */
859 case 4: /* Synchronous Fault Address Register */
861 case 0x10: /* TLB Replacement Control Register */
862 env->mmuregs[reg] = val & env->def->mmu_trcr_mask;
864 case 0x13: /* Synchronous Fault Status Register with Read
866 env->mmuregs[3] = val & env->def->mmu_sfsr_mask;
868 case 0x14: /* Synchronous Fault Address Register */
869 env->mmuregs[4] = val;
872 env->mmuregs[reg] = val;
875 if (oldreg != env->mmuregs[reg]) {
876 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n",
877 reg, oldreg, env->mmuregs[reg]);
880 dump_mmu(stdout, fprintf, env);
884 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
885 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
886 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
888 case ASI_M_TXTC_TAG: /* I-cache tag */
889 case ASI_M_TXTC_DATA: /* I-cache data */
890 case ASI_M_DATAC_TAG: /* D-cache tag */
891 case ASI_M_DATAC_DATA: /* D-cache data */
892 case ASI_M_FLUSH_PAGE: /* I/D-cache flush page */
893 case ASI_M_FLUSH_SEG: /* I/D-cache flush segment */
894 case ASI_M_FLUSH_REGION: /* I/D-cache flush region */
895 case ASI_M_FLUSH_CTX: /* I/D-cache flush context */
896 case ASI_M_FLUSH_USER: /* I/D-cache flush user */
898 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
902 stb_phys(cs->as, (hwaddr)addr
903 | ((hwaddr)(asi & 0xf) << 32), val);
906 stw_phys(cs->as, (hwaddr)addr
907 | ((hwaddr)(asi & 0xf) << 32), val);
911 stl_phys(cs->as, (hwaddr)addr
912 | ((hwaddr)(asi & 0xf) << 32), val);
915 stq_phys(cs->as, (hwaddr)addr
916 | ((hwaddr)(asi & 0xf) << 32), val);
921 case 0x30: /* store buffer tags or Turbosparc secondary cache diagnostic */
922 case 0x31: /* store buffer data, Ross RT620 I-cache flush or
923 Turbosparc snoop RAM */
924 case 0x32: /* store buffer control or Turbosparc page table
925 descriptor diagnostic */
926 case 0x36: /* I-cache flash clear */
927 case 0x37: /* D-cache flash clear */
929 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers*/
931 int reg = (addr >> 8) & 3;
934 case 0: /* Breakpoint Value (Addr) */
935 env->mmubpregs[reg] = (val & 0xfffffffffULL);
937 case 1: /* Breakpoint Mask */
938 env->mmubpregs[reg] = (val & 0xfffffffffULL);
940 case 2: /* Breakpoint Control */
941 env->mmubpregs[reg] = (val & 0x7fULL);
943 case 3: /* Breakpoint Status */
944 env->mmubpregs[reg] = (val & 0xfULL);
947 DPRINTF_MMU("write breakpoint reg[%d] 0x%016x\n", reg,
951 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
952 env->mmubpctrv = val & 0xffffffff;
954 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
955 env->mmubpctrc = val & 0x3;
957 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
958 env->mmubpctrs = val & 0x3;
960 case 0x4c: /* SuperSPARC MMU Breakpoint Action */
961 env->mmubpaction = val & 0x1fff;
963 case ASI_USERTXT: /* User code access, XXX */
964 case ASI_KERNELTXT: /* Supervisor code access, XXX */
966 cpu_unassigned_access(CPU(sparc_env_get_cpu(env)),
967 addr, true, false, asi, size);
970 case ASI_USERDATA: /* User data access */
971 case ASI_KERNELDATA: /* Supervisor data access */
973 case ASI_M_BYPASS: /* MMU passthrough */
974 case ASI_LEON_BYPASS: /* LEON MMU passthrough */
975 case ASI_M_BCOPY: /* Block copy, sta access */
976 case ASI_M_BFILL: /* Block fill, stda access */
977 /* These are always handled inline. */
978 g_assert_not_reached();
981 dump_asi("write", addr, asi, size, val);
985 #endif /* CONFIG_USER_ONLY */
986 #else /* TARGET_SPARC64 */
988 #ifdef CONFIG_USER_ONLY
989 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
990 int asi, uint32_t memop)
992 int size = 1 << (memop & MO_SIZE);
993 int sign = memop & MO_SIGN;
997 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
999 do_check_align(env, addr, size - 1, GETPC());
1000 addr = asi_address_mask(env, asi, addr);
1003 case ASI_PNF: /* Primary no-fault */
1004 case ASI_PNFL: /* Primary no-fault LE */
1005 case ASI_SNF: /* Secondary no-fault */
1006 case ASI_SNFL: /* Secondary no-fault LE */
1007 if (page_check_range(addr, size, PAGE_READ) == -1) {
1013 ret = cpu_ldub_data(env, addr);
1016 ret = cpu_lduw_data(env, addr);
1019 ret = cpu_ldl_data(env, addr);
1022 ret = cpu_ldq_data(env, addr);
1025 g_assert_not_reached();
1030 case ASI_P: /* Primary */
1031 case ASI_PL: /* Primary LE */
1032 case ASI_S: /* Secondary */
1033 case ASI_SL: /* Secondary LE */
1034 /* These are always handled inline. */
1035 g_assert_not_reached();
1038 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
1041 /* Convert from little endian */
1043 case ASI_PNFL: /* Primary no-fault LE */
1044 case ASI_SNFL: /* Secondary no-fault LE */
1058 /* Convert to signed number */
1065 ret = (int16_t) ret;
1068 ret = (int32_t) ret;
1073 dump_asi("read", addr, asi, size, ret);
1078 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
1079 int asi, uint32_t memop)
1081 int size = 1 << (memop & MO_SIZE);
1083 dump_asi("write", addr, asi, size, val);
1086 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
1088 do_check_align(env, addr, size - 1, GETPC());
1091 case ASI_P: /* Primary */
1092 case ASI_PL: /* Primary LE */
1093 case ASI_S: /* Secondary */
1094 case ASI_SL: /* Secondary LE */
1095 /* These are always handled inline. */
1096 g_assert_not_reached();
1098 case ASI_PNF: /* Primary no-fault, RO */
1099 case ASI_SNF: /* Secondary no-fault, RO */
1100 case ASI_PNFL: /* Primary no-fault LE, RO */
1101 case ASI_SNFL: /* Secondary no-fault LE, RO */
1103 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
1107 #else /* CONFIG_USER_ONLY */
1109 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
1110 int asi, uint32_t memop)
1112 int size = 1 << (memop & MO_SIZE);
1113 int sign = memop & MO_SIGN;
1114 CPUState *cs = CPU(sparc_env_get_cpu(env));
1116 #if defined(DEBUG_ASI)
1117 target_ulong last_addr = addr;
1122 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
1123 || (cpu_has_hypervisor(env)
1124 && asi >= 0x30 && asi < 0x80
1125 && !(env->hpstate & HS_PRIV))) {
1126 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
1129 do_check_align(env, addr, size - 1, GETPC());
1130 addr = asi_address_mask(env, asi, addr);
1139 int idx = (env->pstate & PS_PRIV
1140 ? (asi & 1 ? MMU_KERNEL_SECONDARY_IDX : MMU_KERNEL_IDX)
1141 : (asi & 1 ? MMU_USER_SECONDARY_IDX : MMU_USER_IDX));
1143 if (cpu_get_phys_page_nofault(env, addr, idx) == -1ULL) {
1145 dump_asi("read ", last_addr, asi, size, ret);
1147 /* exception_index is set in get_physical_address_data. */
1148 cpu_raise_exception_ra(env, cs->exception_index, GETPC());
1150 oi = make_memop_idx(memop, idx);
1153 ret = helper_ret_ldub_mmu(env, addr, oi, GETPC());
1157 ret = helper_le_lduw_mmu(env, addr, oi, GETPC());
1159 ret = helper_be_lduw_mmu(env, addr, oi, GETPC());
1164 ret = helper_le_ldul_mmu(env, addr, oi, GETPC());
1166 ret = helper_be_ldul_mmu(env, addr, oi, GETPC());
1171 ret = helper_le_ldq_mmu(env, addr, oi, GETPC());
1173 ret = helper_be_ldq_mmu(env, addr, oi, GETPC());
1177 g_assert_not_reached();
1182 case ASI_AIUP: /* As if user primary */
1183 case ASI_AIUS: /* As if user secondary */
1184 case ASI_AIUPL: /* As if user primary LE */
1185 case ASI_AIUSL: /* As if user secondary LE */
1186 case ASI_P: /* Primary */
1187 case ASI_S: /* Secondary */
1188 case ASI_PL: /* Primary LE */
1189 case ASI_SL: /* Secondary LE */
1190 case ASI_REAL: /* Bypass */
1191 case ASI_REAL_IO: /* Bypass, non-cacheable */
1192 case ASI_REAL_L: /* Bypass LE */
1193 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
1194 case ASI_N: /* Nucleus */
1195 case ASI_NL: /* Nucleus Little Endian (LE) */
1196 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
1197 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
1198 case ASI_TWINX_AIUP: /* As if user primary, twinx */
1199 case ASI_TWINX_AIUS: /* As if user secondary, twinx */
1200 case ASI_TWINX_REAL: /* Real address, twinx */
1201 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
1202 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
1203 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
1204 case ASI_TWINX_N: /* Nucleus, twinx */
1205 case ASI_TWINX_NL: /* Nucleus, twinx, LE */
1206 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
1207 case ASI_TWINX_P: /* Primary, twinx */
1208 case ASI_TWINX_PL: /* Primary, twinx, LE */
1209 case ASI_TWINX_S: /* Secondary, twinx */
1210 case ASI_TWINX_SL: /* Secondary, twinx, LE */
1211 /* These are always handled inline. */
1212 g_assert_not_reached();
1214 case ASI_UPA_CONFIG: /* UPA config */
1217 case ASI_LSU_CONTROL: /* LSU */
1220 case ASI_IMMU: /* I-MMU regs */
1222 int reg = (addr >> 3) & 0xf;
1225 /* I-TSB Tag Target register */
1226 ret = ultrasparc_tag_target(env->immu.tag_access);
1228 ret = env->immuregs[reg];
1233 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer */
1235 /* env->immuregs[5] holds I-MMU TSB register value
1236 env->immuregs[6] holds I-MMU Tag Access register value */
1237 ret = ultrasparc_tsb_pointer(env->immu.tsb, env->immu.tag_access,
1241 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer */
1243 /* env->immuregs[5] holds I-MMU TSB register value
1244 env->immuregs[6] holds I-MMU Tag Access register value */
1245 ret = ultrasparc_tsb_pointer(env->immu.tsb, env->immu.tag_access,
1249 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
1251 int reg = (addr >> 3) & 0x3f;
1253 ret = env->itlb[reg].tte;
1256 case ASI_ITLB_TAG_READ: /* I-MMU tag read */
1258 int reg = (addr >> 3) & 0x3f;
1260 ret = env->itlb[reg].tag;
1263 case ASI_DMMU: /* D-MMU regs */
1265 int reg = (addr >> 3) & 0xf;
1268 /* D-TSB Tag Target register */
1269 ret = ultrasparc_tag_target(env->dmmu.tag_access);
1271 ret = env->dmmuregs[reg];
1275 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer */
1277 /* env->dmmuregs[5] holds D-MMU TSB register value
1278 env->dmmuregs[6] holds D-MMU Tag Access register value */
1279 ret = ultrasparc_tsb_pointer(env->dmmu.tsb, env->dmmu.tag_access,
1283 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer */
1285 /* env->dmmuregs[5] holds D-MMU TSB register value
1286 env->dmmuregs[6] holds D-MMU Tag Access register value */
1287 ret = ultrasparc_tsb_pointer(env->dmmu.tsb, env->dmmu.tag_access,
1291 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
1293 int reg = (addr >> 3) & 0x3f;
1295 ret = env->dtlb[reg].tte;
1298 case ASI_DTLB_TAG_READ: /* D-MMU tag read */
1300 int reg = (addr >> 3) & 0x3f;
1302 ret = env->dtlb[reg].tag;
1305 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
1307 case ASI_INTR_RECEIVE: /* Interrupt data receive */
1308 ret = env->ivec_status;
1310 case ASI_INTR_R: /* Incoming interrupt vector, RO */
1312 int reg = (addr >> 4) & 0x3;
1314 ret = env->ivec_data[reg];
1318 case ASI_DCACHE_DATA: /* D-cache data */
1319 case ASI_DCACHE_TAG: /* D-cache tag access */
1320 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
1321 case ASI_AFSR: /* E-cache asynchronous fault status */
1322 case ASI_AFAR: /* E-cache asynchronous fault address */
1323 case ASI_EC_TAG_DATA: /* E-cache tag data */
1324 case ASI_IC_INSTR: /* I-cache instruction access */
1325 case ASI_IC_TAG: /* I-cache tag access */
1326 case ASI_IC_PRE_DECODE: /* I-cache predecode */
1327 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
1328 case ASI_EC_W: /* E-cache tag */
1329 case ASI_EC_R: /* E-cache tag */
1331 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer */
1332 case ASI_ITLB_DATA_IN: /* I-MMU data in, WO */
1333 case ASI_IMMU_DEMAP: /* I-MMU demap, WO */
1334 case ASI_DTLB_DATA_IN: /* D-MMU data in, WO */
1335 case ASI_DMMU_DEMAP: /* D-MMU demap, WO */
1336 case ASI_INTR_W: /* Interrupt vector, WO */
1338 cpu_unassigned_access(cs, addr, false, false, 1, size);
1343 /* Convert to signed number */
1350 ret = (int16_t) ret;
1353 ret = (int32_t) ret;
1360 dump_asi("read ", last_addr, asi, size, ret);
1365 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
1366 int asi, uint32_t memop)
1368 int size = 1 << (memop & MO_SIZE);
1369 SPARCCPU *cpu = sparc_env_get_cpu(env);
1370 CPUState *cs = CPU(cpu);
1373 dump_asi("write", addr, asi, size, val);
1378 if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
1379 || (cpu_has_hypervisor(env)
1380 && asi >= 0x30 && asi < 0x80
1381 && !(env->hpstate & HS_PRIV))) {
1382 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
1385 do_check_align(env, addr, size - 1, GETPC());
1386 addr = asi_address_mask(env, asi, addr);
1389 case ASI_AIUP: /* As if user primary */
1390 case ASI_AIUS: /* As if user secondary */
1391 case ASI_AIUPL: /* As if user primary LE */
1392 case ASI_AIUSL: /* As if user secondary LE */
1393 case ASI_P: /* Primary */
1394 case ASI_S: /* Secondary */
1395 case ASI_PL: /* Primary LE */
1396 case ASI_SL: /* Secondary LE */
1397 case ASI_REAL: /* Bypass */
1398 case ASI_REAL_IO: /* Bypass, non-cacheable */
1399 case ASI_REAL_L: /* Bypass LE */
1400 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
1401 case ASI_N: /* Nucleus */
1402 case ASI_NL: /* Nucleus Little Endian (LE) */
1403 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
1404 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
1405 case ASI_TWINX_AIUP: /* As if user primary, twinx */
1406 case ASI_TWINX_AIUS: /* As if user secondary, twinx */
1407 case ASI_TWINX_REAL: /* Real address, twinx */
1408 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
1409 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
1410 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
1411 case ASI_TWINX_N: /* Nucleus, twinx */
1412 case ASI_TWINX_NL: /* Nucleus, twinx, LE */
1413 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
1414 case ASI_TWINX_P: /* Primary, twinx */
1415 case ASI_TWINX_PL: /* Primary, twinx, LE */
1416 case ASI_TWINX_S: /* Secondary, twinx */
1417 case ASI_TWINX_SL: /* Secondary, twinx, LE */
1418 /* These are always handled inline. */
1419 g_assert_not_reached();
1421 case ASI_UPA_CONFIG: /* UPA config */
1424 case ASI_LSU_CONTROL: /* LSU */
1425 env->lsu = val & (DMMU_E | IMMU_E);
1427 case ASI_IMMU: /* I-MMU regs */
1429 int reg = (addr >> 3) & 0xf;
1432 oldreg = env->immuregs[reg];
1436 case 1: /* Not in I-MMU */
1440 if ((val & 1) == 0) {
1441 val = 0; /* Clear SFSR */
1443 env->immu.sfsr = val;
1447 case 5: /* TSB access */
1448 DPRINTF_MMU("immu TSB write: 0x%016" PRIx64 " -> 0x%016"
1449 PRIx64 "\n", env->immu.tsb, val);
1450 env->immu.tsb = val;
1452 case 6: /* Tag access */
1453 env->immu.tag_access = val;
1462 if (oldreg != env->immuregs[reg]) {
1463 DPRINTF_MMU("immu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
1464 PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1467 dump_mmu(stdout, fprintf, env);
1471 case ASI_ITLB_DATA_IN: /* I-MMU data in */
1472 replace_tlb_1bit_lru(env->itlb, env->immu.tag_access, val, "immu", env);
1474 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
1476 /* TODO: auto demap */
1478 unsigned int i = (addr >> 3) & 0x3f;
1480 replace_tlb_entry(&env->itlb[i], env->immu.tag_access, val, env);
1483 DPRINTF_MMU("immu data access replaced entry [%i]\n", i);
1484 dump_mmu(stdout, fprintf, env);
1488 case ASI_IMMU_DEMAP: /* I-MMU demap */
1489 demap_tlb(env->itlb, addr, "immu", env);
1491 case ASI_DMMU: /* D-MMU regs */
1493 int reg = (addr >> 3) & 0xf;
1496 oldreg = env->dmmuregs[reg];
1502 if ((val & 1) == 0) {
1503 val = 0; /* Clear SFSR, Fault address */
1506 env->dmmu.sfsr = val;
1508 case 1: /* Primary context */
1509 env->dmmu.mmu_primary_context = val;
1510 /* can be optimized to only flush MMU_USER_IDX
1511 and MMU_KERNEL_IDX entries */
1512 tlb_flush(CPU(cpu), 1);
1514 case 2: /* Secondary context */
1515 env->dmmu.mmu_secondary_context = val;
1516 /* can be optimized to only flush MMU_USER_SECONDARY_IDX
1517 and MMU_KERNEL_SECONDARY_IDX entries */
1518 tlb_flush(CPU(cpu), 1);
1520 case 5: /* TSB access */
1521 DPRINTF_MMU("dmmu TSB write: 0x%016" PRIx64 " -> 0x%016"
1522 PRIx64 "\n", env->dmmu.tsb, val);
1523 env->dmmu.tsb = val;
1525 case 6: /* Tag access */
1526 env->dmmu.tag_access = val;
1528 case 7: /* Virtual Watchpoint */
1529 case 8: /* Physical Watchpoint */
1531 env->dmmuregs[reg] = val;
1535 if (oldreg != env->dmmuregs[reg]) {
1536 DPRINTF_MMU("dmmu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
1537 PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1540 dump_mmu(stdout, fprintf, env);
1544 case ASI_DTLB_DATA_IN: /* D-MMU data in */
1545 replace_tlb_1bit_lru(env->dtlb, env->dmmu.tag_access, val, "dmmu", env);
1547 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
1549 unsigned int i = (addr >> 3) & 0x3f;
1551 replace_tlb_entry(&env->dtlb[i], env->dmmu.tag_access, val, env);
1554 DPRINTF_MMU("dmmu data access replaced entry [%i]\n", i);
1555 dump_mmu(stdout, fprintf, env);
1559 case ASI_DMMU_DEMAP: /* D-MMU demap */
1560 demap_tlb(env->dtlb, addr, "dmmu", env);
1562 case ASI_INTR_RECEIVE: /* Interrupt data receive */
1563 env->ivec_status = val & 0x20;
1565 case ASI_DCACHE_DATA: /* D-cache data */
1566 case ASI_DCACHE_TAG: /* D-cache tag access */
1567 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
1568 case ASI_AFSR: /* E-cache asynchronous fault status */
1569 case ASI_AFAR: /* E-cache asynchronous fault address */
1570 case ASI_EC_TAG_DATA: /* E-cache tag data */
1571 case ASI_IC_INSTR: /* I-cache instruction access */
1572 case ASI_IC_TAG: /* I-cache tag access */
1573 case ASI_IC_PRE_DECODE: /* I-cache predecode */
1574 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
1575 case ASI_EC_W: /* E-cache tag */
1576 case ASI_EC_R: /* E-cache tag */
1578 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer, RO */
1579 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer, RO */
1580 case ASI_ITLB_TAG_READ: /* I-MMU tag read, RO */
1581 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer, RO */
1582 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer, RO */
1583 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer, RO */
1584 case ASI_DTLB_TAG_READ: /* D-MMU tag read, RO */
1585 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
1586 case ASI_INTR_R: /* Incoming interrupt vector, RO */
1587 case ASI_PNF: /* Primary no-fault, RO */
1588 case ASI_SNF: /* Secondary no-fault, RO */
1589 case ASI_PNFL: /* Primary no-fault LE, RO */
1590 case ASI_SNFL: /* Secondary no-fault LE, RO */
1592 cpu_unassigned_access(cs, addr, true, false, 1, size);
1596 #endif /* CONFIG_USER_ONLY */
1597 #endif /* TARGET_SPARC64 */
1599 #if !defined(CONFIG_USER_ONLY)
1600 #ifndef TARGET_SPARC64
1601 void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr,
1602 bool is_write, bool is_exec, int is_asi,
1605 SPARCCPU *cpu = SPARC_CPU(cs);
1606 CPUSPARCState *env = &cpu->env;
1609 #ifdef DEBUG_UNASSIGNED
1611 printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
1612 " asi 0x%02x from " TARGET_FMT_lx "\n",
1613 is_exec ? "exec" : is_write ? "write" : "read", size,
1614 size == 1 ? "" : "s", addr, is_asi, env->pc);
1616 printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
1617 " from " TARGET_FMT_lx "\n",
1618 is_exec ? "exec" : is_write ? "write" : "read", size,
1619 size == 1 ? "" : "s", addr, env->pc);
1622 /* Don't overwrite translation and access faults */
1623 fault_type = (env->mmuregs[3] & 0x1c) >> 2;
1624 if ((fault_type > 4) || (fault_type == 0)) {
1625 env->mmuregs[3] = 0; /* Fault status register */
1627 env->mmuregs[3] |= 1 << 16;
1630 env->mmuregs[3] |= 1 << 5;
1633 env->mmuregs[3] |= 1 << 6;
1636 env->mmuregs[3] |= 1 << 7;
1638 env->mmuregs[3] |= (5 << 2) | 2;
1639 /* SuperSPARC will never place instruction fault addresses in the FAR */
1641 env->mmuregs[4] = addr; /* Fault address register */
1644 /* overflow (same type fault was not read before another fault) */
1645 if (fault_type == ((env->mmuregs[3] & 0x1c)) >> 2) {
1646 env->mmuregs[3] |= 1;
1649 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
1650 int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS;
1651 cpu_raise_exception_ra(env, tt, GETPC());
1654 /* flush neverland mappings created during no-fault mode,
1655 so the sequential MMU faults report proper fault types */
1656 if (env->mmuregs[0] & MMU_NF) {
1661 void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr,
1662 bool is_write, bool is_exec, int is_asi,
1665 SPARCCPU *cpu = SPARC_CPU(cs);
1666 CPUSPARCState *env = &cpu->env;
1667 int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS;
1669 #ifdef DEBUG_UNASSIGNED
1670 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
1671 "\n", addr, env->pc);
1674 cpu_raise_exception_ra(env, tt, GETPC());
1679 #if !defined(CONFIG_USER_ONLY)
1680 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
1681 MMUAccessType access_type,
1685 SPARCCPU *cpu = SPARC_CPU(cs);
1686 CPUSPARCState *env = &cpu->env;
1688 #ifdef DEBUG_UNALIGNED
1689 printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
1690 "\n", addr, env->pc);
1692 cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr);
1695 /* try to fill the TLB and return an exception if error. If retaddr is
1696 NULL, it means that the function was called in C code (i.e. not
1697 from generated code or from helper.c) */
1698 /* XXX: fix it to restore all registers */
1699 void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
1700 int mmu_idx, uintptr_t retaddr)
1704 ret = sparc_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
1706 cpu_loop_exit_restore(cs, retaddr);