]> git.proxmox.com Git - mirror_qemu.git/blob - target/sparc/ldst_helper.c
projects / mirror_qemu.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
target/sparc: Remove DEBUG_UNALIGNED
[mirror_qemu.git] / target / sparc / ldst_helper.c
1 /*
2 * Helpers for loads and stores
3 *
4 * Copyright (c) 2003-2005 Fabrice Bellard
5 *
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 2.1 of the License, or (at your option) any later version.
10 *
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.
15 *
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/>.
18 */
19
20 #include "qemu/osdep.h"
21 #include "cpu.h"
22 #include "tcg/tcg.h"
23 #include "exec/helper-proto.h"
24 #include "exec/exec-all.h"
25 #include "exec/cpu_ldst.h"
26 #include "asi.h"
27
28 //#define DEBUG_MMU
29 //#define DEBUG_MXCC
30 //#define DEBUG_UNASSIGNED
31 //#define DEBUG_ASI
32 //#define DEBUG_CACHE_CONTROL
33
34 #ifdef DEBUG_MMU
35 #define DPRINTF_MMU(fmt, ...) \
36 do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0)
37 #else
38 #define DPRINTF_MMU(fmt, ...) do {} while (0)
39 #endif
40
41 #ifdef DEBUG_MXCC
42 #define DPRINTF_MXCC(fmt, ...) \
43 do { printf("MXCC: " fmt , ## __VA_ARGS__); } while (0)
44 #else
45 #define DPRINTF_MXCC(fmt, ...) do {} while (0)
46 #endif
47
48 #ifdef DEBUG_ASI
49 #define DPRINTF_ASI(fmt, ...) \
50 do { printf("ASI: " fmt , ## __VA_ARGS__); } while (0)
51 #endif
52
53 #ifdef DEBUG_CACHE_CONTROL
54 #define DPRINTF_CACHE_CONTROL(fmt, ...) \
55 do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0)
56 #else
57 #define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0)
58 #endif
59
60 #ifdef TARGET_SPARC64
61 #ifndef TARGET_ABI32
62 #define AM_CHECK(env1) ((env1)->pstate & PS_AM)
63 #else
64 #define AM_CHECK(env1) (1)
65 #endif
66 #endif
67
68 #define QT0 (env->qt0)
69 #define QT1 (env->qt1)
70
71 #if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
72 /* Calculates TSB pointer value for fault page size
73 * UltraSPARC IIi has fixed sizes (8k or 64k) for the page pointers
74 * UA2005 holds the page size configuration in mmu_ctx registers */
75 static uint64_t ultrasparc_tsb_pointer(CPUSPARCState *env,
76 const SparcV9MMU *mmu, const int idx)
77 {
78 uint64_t tsb_register;
79 int page_size;
80 if (cpu_has_hypervisor(env)) {
81 int tsb_index = 0;
82 int ctx = mmu->tag_access & 0x1fffULL;
83 uint64_t ctx_register = mmu->sun4v_ctx_config[ctx ? 1 : 0];
84 tsb_index = idx;
85 tsb_index |= ctx ? 2 : 0;
86 page_size = idx ? ctx_register >> 8 : ctx_register;
87 page_size &= 7;
88 tsb_register = mmu->sun4v_tsb_pointers[tsb_index];
89 } else {
90 page_size = idx;
91 tsb_register = mmu->tsb;
92 }
93 int tsb_split = (tsb_register & 0x1000ULL) ? 1 : 0;
94 int tsb_size = tsb_register & 0xf;
95
96 uint64_t tsb_base_mask = (~0x1fffULL) << tsb_size;
97
98 /* move va bits to correct position,
99 * the context bits will be masked out later */
100 uint64_t va = mmu->tag_access >> (3 * page_size + 9);
101
102 /* calculate tsb_base mask and adjust va if split is in use */
103 if (tsb_split) {
104 if (idx == 0) {
105 va &= ~(1ULL << (13 + tsb_size));
106 } else {
107 va |= (1ULL << (13 + tsb_size));
108 }
109 tsb_base_mask <<= 1;
110 }
111
112 return ((tsb_register & tsb_base_mask) | (va & ~tsb_base_mask)) & ~0xfULL;
113 }
114
115 /* Calculates tag target register value by reordering bits
116 in tag access register */
117 static uint64_t ultrasparc_tag_target(uint64_t tag_access_register)
118 {
119 return ((tag_access_register & 0x1fff) << 48) | (tag_access_register >> 22);
120 }
121
122 static void replace_tlb_entry(SparcTLBEntry *tlb,
123 uint64_t tlb_tag, uint64_t tlb_tte,
124 CPUSPARCState *env)
125 {
126 target_ulong mask, size, va, offset;
127
128 /* flush page range if translation is valid */
129 if (TTE_IS_VALID(tlb->tte)) {
130 CPUState *cs = env_cpu(env);
131
132 size = 8192ULL << 3 * TTE_PGSIZE(tlb->tte);
133 mask = 1ULL + ~size;
134
135 va = tlb->tag & mask;
136
137 for (offset = 0; offset < size; offset += TARGET_PAGE_SIZE) {
138 tlb_flush_page(cs, va + offset);
139 }
140 }
141
142 tlb->tag = tlb_tag;
143 tlb->tte = tlb_tte;
144 }
145
146 static void demap_tlb(SparcTLBEntry *tlb, target_ulong demap_addr,
147 const char *strmmu, CPUSPARCState *env1)
148 {
149 unsigned int i;
150 target_ulong mask;
151 uint64_t context;
152
153 int is_demap_context = (demap_addr >> 6) & 1;
154
155 /* demap context */
156 switch ((demap_addr >> 4) & 3) {
157 case 0: /* primary */
158 context = env1->dmmu.mmu_primary_context;
159 break;
160 case 1: /* secondary */
161 context = env1->dmmu.mmu_secondary_context;
162 break;
163 case 2: /* nucleus */
164 context = 0;
165 break;
166 case 3: /* reserved */
167 default:
168 return;
169 }
170
171 for (i = 0; i < 64; i++) {
172 if (TTE_IS_VALID(tlb[i].tte)) {
173
174 if (is_demap_context) {
175 /* will remove non-global entries matching context value */
176 if (TTE_IS_GLOBAL(tlb[i].tte) ||
177 !tlb_compare_context(&tlb[i], context)) {
178 continue;
179 }
180 } else {
181 /* demap page
182 will remove any entry matching VA */
183 mask = 0xffffffffffffe000ULL;
184 mask <<= 3 * ((tlb[i].tte >> 61) & 3);
185
186 if (!compare_masked(demap_addr, tlb[i].tag, mask)) {
187 continue;
188 }
189
190 /* entry should be global or matching context value */
191 if (!TTE_IS_GLOBAL(tlb[i].tte) &&
192 !tlb_compare_context(&tlb[i], context)) {
193 continue;
194 }
195 }
196
197 replace_tlb_entry(&tlb[i], 0, 0, env1);
198 #ifdef DEBUG_MMU
199 DPRINTF_MMU("%s demap invalidated entry [%02u]\n", strmmu, i);
200 dump_mmu(env1);
201 #endif
202 }
203 }
204 }
205
206 static uint64_t sun4v_tte_to_sun4u(CPUSPARCState *env, uint64_t tag,
207 uint64_t sun4v_tte)
208 {
209 uint64_t sun4u_tte;
210 if (!(cpu_has_hypervisor(env) && (tag & TLB_UST1_IS_SUN4V_BIT))) {
211 /* is already in the sun4u format */
212 return sun4v_tte;
213 }
214 sun4u_tte = TTE_PA(sun4v_tte) | (sun4v_tte & TTE_VALID_BIT);
215 sun4u_tte |= (sun4v_tte & 3ULL) << 61; /* TTE_PGSIZE */
216 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_NFO_BIT_UA2005, TTE_NFO_BIT);
217 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_USED_BIT_UA2005, TTE_USED_BIT);
218 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_W_OK_BIT_UA2005, TTE_W_OK_BIT);
219 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_SIDEEFFECT_BIT_UA2005,
220 TTE_SIDEEFFECT_BIT);
221 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_PRIV_BIT_UA2005, TTE_PRIV_BIT);
222 sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_LOCKED_BIT_UA2005, TTE_LOCKED_BIT);
223 return sun4u_tte;
224 }
225
226 static void replace_tlb_1bit_lru(SparcTLBEntry *tlb,
227 uint64_t tlb_tag, uint64_t tlb_tte,
228 const char *strmmu, CPUSPARCState *env1,
229 uint64_t addr)
230 {
231 unsigned int i, replace_used;
232
233 tlb_tte = sun4v_tte_to_sun4u(env1, addr, tlb_tte);
234 if (cpu_has_hypervisor(env1)) {
235 uint64_t new_vaddr = tlb_tag & ~0x1fffULL;
236 uint64_t new_size = 8192ULL << 3 * TTE_PGSIZE(tlb_tte);
237 uint32_t new_ctx = tlb_tag & 0x1fffU;
238 for (i = 0; i < 64; i++) {
239 uint32_t ctx = tlb[i].tag & 0x1fffU;
240 /* check if new mapping overlaps an existing one */
241 if (new_ctx == ctx) {
242 uint64_t vaddr = tlb[i].tag & ~0x1fffULL;
243 uint64_t size = 8192ULL << 3 * TTE_PGSIZE(tlb[i].tte);
244 if (new_vaddr == vaddr
245 || (new_vaddr < vaddr + size
246 && vaddr < new_vaddr + new_size)) {
247 DPRINTF_MMU("auto demap entry [%d] %lx->%lx\n", i, vaddr,
248 new_vaddr);
249 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
250 return;
251 }
252 }
253
254 }
255 }
256 /* Try replacing invalid entry */
257 for (i = 0; i < 64; i++) {
258 if (!TTE_IS_VALID(tlb[i].tte)) {
259 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
260 #ifdef DEBUG_MMU
261 DPRINTF_MMU("%s lru replaced invalid entry [%i]\n", strmmu, i);
262 dump_mmu(env1);
263 #endif
264 return;
265 }
266 }
267
268 /* All entries are valid, try replacing unlocked entry */
269
270 for (replace_used = 0; replace_used < 2; ++replace_used) {
271
272 /* Used entries are not replaced on first pass */
273
274 for (i = 0; i < 64; i++) {
275 if (!TTE_IS_LOCKED(tlb[i].tte) && !TTE_IS_USED(tlb[i].tte)) {
276
277 replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
278 #ifdef DEBUG_MMU
279 DPRINTF_MMU("%s lru replaced unlocked %s entry [%i]\n",
280 strmmu, (replace_used ? "used" : "unused"), i);
281 dump_mmu(env1);
282 #endif
283 return;
284 }
285 }
286
287 /* Now reset used bit and search for unused entries again */
288
289 for (i = 0; i < 64; i++) {
290 TTE_SET_UNUSED(tlb[i].tte);
291 }
292 }
293
294 #ifdef DEBUG_MMU
295 DPRINTF_MMU("%s lru replacement: no free entries available, "
296 "replacing the last one\n", strmmu);
297 #endif
298 /* corner case: the last entry is replaced anyway */
299 replace_tlb_entry(&tlb[63], tlb_tag, tlb_tte, env1);
300 }
301
302 #endif
303
304 #ifdef TARGET_SPARC64
305 /* returns true if access using this ASI is to have address translated by MMU
306 otherwise access is to raw physical address */
307 /* TODO: check sparc32 bits */
308 static inline int is_translating_asi(int asi)
309 {
310 /* Ultrasparc IIi translating asi
311 - note this list is defined by cpu implementation
312 */
313 switch (asi) {
314 case 0x04 ... 0x11:
315 case 0x16 ... 0x19:
316 case 0x1E ... 0x1F:
317 case 0x24 ... 0x2C:
318 case 0x70 ... 0x73:
319 case 0x78 ... 0x79:
320 case 0x80 ... 0xFF:
321 return 1;
322
323 default:
324 return 0;
325 }
326 }
327
328 static inline target_ulong address_mask(CPUSPARCState *env1, target_ulong addr)
329 {
330 if (AM_CHECK(env1)) {
331 addr &= 0xffffffffULL;
332 }
333 return addr;
334 }
335
336 static inline target_ulong asi_address_mask(CPUSPARCState *env,
337 int asi, target_ulong addr)
338 {
339 if (is_translating_asi(asi)) {
340 addr = address_mask(env, addr);
341 }
342 return addr;
343 }
344
345 #ifndef CONFIG_USER_ONLY
346 static inline void do_check_asi(CPUSPARCState *env, int asi, uintptr_t ra)
347 {
348 /* ASIs >= 0x80 are user mode.
349 * ASIs >= 0x30 are hyper mode (or super if hyper is not available).
350 * ASIs <= 0x2f are super mode.
351 */
352 if (asi < 0x80
353 && !cpu_hypervisor_mode(env)
354 && (!cpu_supervisor_mode(env)
355 || (asi >= 0x30 && cpu_has_hypervisor(env)))) {
356 cpu_raise_exception_ra(env, TT_PRIV_ACT, ra);
357 }
358 }
359 #endif /* !CONFIG_USER_ONLY */
360 #endif
361
362 static void do_check_align(CPUSPARCState *env, target_ulong addr,
363 uint32_t align, uintptr_t ra)
364 {
365 if (addr & align) {
366 cpu_raise_exception_ra(env, TT_UNALIGNED, ra);
367 }
368 }
369
370 void helper_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align)
371 {
372 do_check_align(env, addr, align, GETPC());
373 }
374
375 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && \
376 defined(DEBUG_MXCC)
377 static void dump_mxcc(CPUSPARCState *env)
378 {
379 printf("mxccdata: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
380 "\n",
381 env->mxccdata[0], env->mxccdata[1],
382 env->mxccdata[2], env->mxccdata[3]);
383 printf("mxccregs: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
384 "\n"
385 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
386 "\n",
387 env->mxccregs[0], env->mxccregs[1],
388 env->mxccregs[2], env->mxccregs[3],
389 env->mxccregs[4], env->mxccregs[5],
390 env->mxccregs[6], env->mxccregs[7]);
391 }
392 #endif
393
394 #if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \
395 && defined(DEBUG_ASI)
396 static void dump_asi(const char *txt, target_ulong addr, int asi, int size,
397 uint64_t r1)
398 {
399 switch (size) {
400 case 1:
401 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt,
402 addr, asi, r1 & 0xff);
403 break;
404 case 2:
405 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt,
406 addr, asi, r1 & 0xffff);
407 break;
408 case 4:
409 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt,
410 addr, asi, r1 & 0xffffffff);
411 break;
412 case 8:
413 DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt,
414 addr, asi, r1);
415 break;
416 }
417 }
418 #endif
419
420 #ifndef CONFIG_USER_ONLY
421 #ifndef TARGET_SPARC64
422 static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr,
423 bool is_write, bool is_exec, int is_asi,
424 unsigned size, uintptr_t retaddr)
425 {
426 SPARCCPU *cpu = SPARC_CPU(cs);
427 CPUSPARCState *env = &cpu->env;
428 int fault_type;
429
430 #ifdef DEBUG_UNASSIGNED
431 if (is_asi) {
432 printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
433 " asi 0x%02x from " TARGET_FMT_lx "\n",
434 is_exec ? "exec" : is_write ? "write" : "read", size,
435 size == 1 ? "" : "s", addr, is_asi, env->pc);
436 } else {
437 printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
438 " from " TARGET_FMT_lx "\n",
439 is_exec ? "exec" : is_write ? "write" : "read", size,
440 size == 1 ? "" : "s", addr, env->pc);
441 }
442 #endif
443 /* Don't overwrite translation and access faults */
444 fault_type = (env->mmuregs[3] & 0x1c) >> 2;
445 if ((fault_type > 4) || (fault_type == 0)) {
446 env->mmuregs[3] = 0; /* Fault status register */
447 if (is_asi) {
448 env->mmuregs[3] |= 1 << 16;
449 }
450 if (env->psrs) {
451 env->mmuregs[3] |= 1 << 5;
452 }
453 if (is_exec) {
454 env->mmuregs[3] |= 1 << 6;
455 }
456 if (is_write) {
457 env->mmuregs[3] |= 1 << 7;
458 }
459 env->mmuregs[3] |= (5 << 2) | 2;
460 /* SuperSPARC will never place instruction fault addresses in the FAR */
461 if (!is_exec) {
462 env->mmuregs[4] = addr; /* Fault address register */
463 }
464 }
465 /* overflow (same type fault was not read before another fault) */
466 if (fault_type == ((env->mmuregs[3] & 0x1c)) >> 2) {
467 env->mmuregs[3] |= 1;
468 }
469
470 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
471 int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS;
472 cpu_raise_exception_ra(env, tt, retaddr);
473 }
474
475 /*
476 * flush neverland mappings created during no-fault mode,
477 * so the sequential MMU faults report proper fault types
478 */
479 if (env->mmuregs[0] & MMU_NF) {
480 tlb_flush(cs);
481 }
482 }
483 #else
484 static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr,
485 bool is_write, bool is_exec, int is_asi,
486 unsigned size, uintptr_t retaddr)
487 {
488 SPARCCPU *cpu = SPARC_CPU(cs);
489 CPUSPARCState *env = &cpu->env;
490
491 #ifdef DEBUG_UNASSIGNED
492 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
493 "\n", addr, env->pc);
494 #endif
495
496 if (is_exec) { /* XXX has_hypervisor */
497 if (env->lsu & (IMMU_E)) {
498 cpu_raise_exception_ra(env, TT_CODE_ACCESS, retaddr);
499 } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) {
500 cpu_raise_exception_ra(env, TT_INSN_REAL_TRANSLATION_MISS, retaddr);
501 }
502 } else {
503 if (env->lsu & (DMMU_E)) {
504 cpu_raise_exception_ra(env, TT_DATA_ACCESS, retaddr);
505 } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) {
506 cpu_raise_exception_ra(env, TT_DATA_REAL_TRANSLATION_MISS, retaddr);
507 }
508 }
509 }
510 #endif
511 #endif
512
513 #ifndef TARGET_SPARC64
514 #ifndef CONFIG_USER_ONLY
515
516
517 /* Leon3 cache control */
518
519 static void leon3_cache_control_st(CPUSPARCState *env, target_ulong addr,
520 uint64_t val, int size)
521 {
522 DPRINTF_CACHE_CONTROL("st addr:%08x, val:%" PRIx64 ", size:%d\n",
523 addr, val, size);
524
525 if (size != 4) {
526 DPRINTF_CACHE_CONTROL("32bits only\n");
527 return;
528 }
529
530 switch (addr) {
531 case 0x00: /* Cache control */
532
533 /* These values must always be read as zeros */
534 val &= ~CACHE_CTRL_FD;
535 val &= ~CACHE_CTRL_FI;
536 val &= ~CACHE_CTRL_IB;
537 val &= ~CACHE_CTRL_IP;
538 val &= ~CACHE_CTRL_DP;
539
540 env->cache_control = val;
541 break;
542 case 0x04: /* Instruction cache configuration */
543 case 0x08: /* Data cache configuration */
544 /* Read Only */
545 break;
546 default:
547 DPRINTF_CACHE_CONTROL("write unknown register %08x\n", addr);
548 break;
549 };
550 }
551
552 static uint64_t leon3_cache_control_ld(CPUSPARCState *env, target_ulong addr,
553 int size)
554 {
555 uint64_t ret = 0;
556
557 if (size != 4) {
558 DPRINTF_CACHE_CONTROL("32bits only\n");
559 return 0;
560 }
561
562 switch (addr) {
563 case 0x00: /* Cache control */
564 ret = env->cache_control;
565 break;
566
567 /* Configuration registers are read and only always keep those
568 predefined values */
569
570 case 0x04: /* Instruction cache configuration */
571 ret = 0x10220000;
572 break;
573 case 0x08: /* Data cache configuration */
574 ret = 0x18220000;
575 break;
576 default:
577 DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr);
578 break;
579 };
580 DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n",
581 addr, ret, size);
582 return ret;
583 }
584
585 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
586 int asi, uint32_t memop)
587 {
588 int size = 1 << (memop & MO_SIZE);
589 int sign = memop & MO_SIGN;
590 CPUState *cs = env_cpu(env);
591 uint64_t ret = 0;
592 #if defined(DEBUG_MXCC) || defined(DEBUG_ASI)
593 uint32_t last_addr = addr;
594 #endif
595
596 do_check_align(env, addr, size - 1, GETPC());
597 switch (asi) {
598 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
599 /* case ASI_LEON_CACHEREGS: Leon3 cache control */
600 switch (addr) {
601 case 0x00: /* Leon3 Cache Control */
602 case 0x08: /* Leon3 Instruction Cache config */
603 case 0x0C: /* Leon3 Date Cache config */
604 if (env->def.features & CPU_FEATURE_CACHE_CTRL) {
605 ret = leon3_cache_control_ld(env, addr, size);
606 }
607 break;
608 case 0x01c00a00: /* MXCC control register */
609 if (size == 8) {
610 ret = env->mxccregs[3];
611 } else {
612 qemu_log_mask(LOG_UNIMP,
613 "%08x: unimplemented access size: %d\n", addr,
614 size);
615 }
616 break;
617 case 0x01c00a04: /* MXCC control register */
618 if (size == 4) {
619 ret = env->mxccregs[3];
620 } else {
621 qemu_log_mask(LOG_UNIMP,
622 "%08x: unimplemented access size: %d\n", addr,
623 size);
624 }
625 break;
626 case 0x01c00c00: /* Module reset register */
627 if (size == 8) {
628 ret = env->mxccregs[5];
629 /* should we do something here? */
630 } else {
631 qemu_log_mask(LOG_UNIMP,
632 "%08x: unimplemented access size: %d\n", addr,
633 size);
634 }
635 break;
636 case 0x01c00f00: /* MBus port address register */
637 if (size == 8) {
638 ret = env->mxccregs[7];
639 } else {
640 qemu_log_mask(LOG_UNIMP,
641 "%08x: unimplemented access size: %d\n", addr,
642 size);
643 }
644 break;
645 default:
646 qemu_log_mask(LOG_UNIMP,
647 "%08x: unimplemented address, size: %d\n", addr,
648 size);
649 break;
650 }
651 DPRINTF_MXCC("asi = %d, size = %d, sign = %d, "
652 "addr = %08x -> ret = %" PRIx64 ","
653 "addr = %08x\n", asi, size, sign, last_addr, ret, addr);
654 #ifdef DEBUG_MXCC
655 dump_mxcc(env);
656 #endif
657 break;
658 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU probe */
659 case ASI_LEON_MMUFLUSH: /* LEON3 MMU probe */
660 {
661 int mmulev;
662
663 mmulev = (addr >> 8) & 15;
664 if (mmulev > 4) {
665 ret = 0;
666 } else {
667 ret = mmu_probe(env, addr, mmulev);
668 }
669 DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
670 addr, mmulev, ret);
671 }
672 break;
673 case ASI_M_MMUREGS: /* SuperSparc MMU regs */
674 case ASI_LEON_MMUREGS: /* LEON3 MMU regs */
675 {
676 int reg = (addr >> 8) & 0x1f;
677
678 ret = env->mmuregs[reg];
679 if (reg == 3) { /* Fault status cleared on read */
680 env->mmuregs[3] = 0;
681 } else if (reg == 0x13) { /* Fault status read */
682 ret = env->mmuregs[3];
683 } else if (reg == 0x14) { /* Fault address read */
684 ret = env->mmuregs[4];
685 }
686 DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret);
687 }
688 break;
689 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
690 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
691 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
692 break;
693 case ASI_KERNELTXT: /* Supervisor code access */
694 switch (size) {
695 case 1:
696 ret = cpu_ldub_code(env, addr);
697 break;
698 case 2:
699 ret = cpu_lduw_code(env, addr);
700 break;
701 default:
702 case 4:
703 ret = cpu_ldl_code(env, addr);
704 break;
705 case 8:
706 ret = cpu_ldq_code(env, addr);
707 break;
708 }
709 break;
710 case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */
711 case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */
712 case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */
713 case ASI_M_DATAC_DATA: /* SparcStation 5 D-cache data */
714 break;
715 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
716 {
717 MemTxResult result;
718 hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32);
719
720 switch (size) {
721 case 1:
722 ret = address_space_ldub(cs->as, access_addr,
723 MEMTXATTRS_UNSPECIFIED, &result);
724 break;
725 case 2:
726 ret = address_space_lduw(cs->as, access_addr,
727 MEMTXATTRS_UNSPECIFIED, &result);
728 break;
729 default:
730 case 4:
731 ret = address_space_ldl(cs->as, access_addr,
732 MEMTXATTRS_UNSPECIFIED, &result);
733 break;
734 case 8:
735 ret = address_space_ldq(cs->as, access_addr,
736 MEMTXATTRS_UNSPECIFIED, &result);
737 break;
738 }
739
740 if (result != MEMTX_OK) {
741 sparc_raise_mmu_fault(cs, access_addr, false, false, false,
742 size, GETPC());
743 }
744 break;
745 }
746 case 0x30: /* Turbosparc secondary cache diagnostic */
747 case 0x31: /* Turbosparc RAM snoop */
748 case 0x32: /* Turbosparc page table descriptor diagnostic */
749 case 0x39: /* data cache diagnostic register */
750 ret = 0;
751 break;
752 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers */
753 {
754 int reg = (addr >> 8) & 3;
755
756 switch (reg) {
757 case 0: /* Breakpoint Value (Addr) */
758 ret = env->mmubpregs[reg];
759 break;
760 case 1: /* Breakpoint Mask */
761 ret = env->mmubpregs[reg];
762 break;
763 case 2: /* Breakpoint Control */
764 ret = env->mmubpregs[reg];
765 break;
766 case 3: /* Breakpoint Status */
767 ret = env->mmubpregs[reg];
768 env->mmubpregs[reg] = 0ULL;
769 break;
770 }
771 DPRINTF_MMU("read breakpoint reg[%d] 0x%016" PRIx64 "\n", reg,
772 ret);
773 }
774 break;
775 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
776 ret = env->mmubpctrv;
777 break;
778 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
779 ret = env->mmubpctrc;
780 break;
781 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
782 ret = env->mmubpctrs;
783 break;
784 case 0x4c: /* SuperSPARC MMU Breakpoint Action */
785 ret = env->mmubpaction;
786 break;
787 case ASI_USERTXT: /* User code access, XXX */
788 default:
789 sparc_raise_mmu_fault(cs, addr, false, false, asi, size, GETPC());
790 ret = 0;
791 break;
792
793 case ASI_USERDATA: /* User data access */
794 case ASI_KERNELDATA: /* Supervisor data access */
795 case ASI_P: /* Implicit primary context data access (v9 only?) */
796 case ASI_M_BYPASS: /* MMU passthrough */
797 case ASI_LEON_BYPASS: /* LEON MMU passthrough */
798 /* These are always handled inline. */
799 g_assert_not_reached();
800 }
801 if (sign) {
802 switch (size) {
803 case 1:
804 ret = (int8_t) ret;
805 break;
806 case 2:
807 ret = (int16_t) ret;
808 break;
809 case 4:
810 ret = (int32_t) ret;
811 break;
812 default:
813 break;
814 }
815 }
816 #ifdef DEBUG_ASI
817 dump_asi("read ", last_addr, asi, size, ret);
818 #endif
819 return ret;
820 }
821
822 void helper_st_asi(CPUSPARCState *env, target_ulong addr, uint64_t val,
823 int asi, uint32_t memop)
824 {
825 int size = 1 << (memop & MO_SIZE);
826 CPUState *cs = env_cpu(env);
827
828 do_check_align(env, addr, size - 1, GETPC());
829 switch (asi) {
830 case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
831 /* case ASI_LEON_CACHEREGS: Leon3 cache control */
832 switch (addr) {
833 case 0x00: /* Leon3 Cache Control */
834 case 0x08: /* Leon3 Instruction Cache config */
835 case 0x0C: /* Leon3 Date Cache config */
836 if (env->def.features & CPU_FEATURE_CACHE_CTRL) {
837 leon3_cache_control_st(env, addr, val, size);
838 }
839 break;
840
841 case 0x01c00000: /* MXCC stream data register 0 */
842 if (size == 8) {
843 env->mxccdata[0] = val;
844 } else {
845 qemu_log_mask(LOG_UNIMP,
846 "%08x: unimplemented access size: %d\n", addr,
847 size);
848 }
849 break;
850 case 0x01c00008: /* MXCC stream data register 1 */
851 if (size == 8) {
852 env->mxccdata[1] = val;
853 } else {
854 qemu_log_mask(LOG_UNIMP,
855 "%08x: unimplemented access size: %d\n", addr,
856 size);
857 }
858 break;
859 case 0x01c00010: /* MXCC stream data register 2 */
860 if (size == 8) {
861 env->mxccdata[2] = val;
862 } else {
863 qemu_log_mask(LOG_UNIMP,
864 "%08x: unimplemented access size: %d\n", addr,
865 size);
866 }
867 break;
868 case 0x01c00018: /* MXCC stream data register 3 */
869 if (size == 8) {
870 env->mxccdata[3] = val;
871 } else {
872 qemu_log_mask(LOG_UNIMP,
873 "%08x: unimplemented access size: %d\n", addr,
874 size);
875 }
876 break;
877 case 0x01c00100: /* MXCC stream source */
878 {
879 int i;
880
881 if (size == 8) {
882 env->mxccregs[0] = val;
883 } else {
884 qemu_log_mask(LOG_UNIMP,
885 "%08x: unimplemented access size: %d\n", addr,
886 size);
887 }
888
889 for (i = 0; i < 4; i++) {
890 MemTxResult result;
891 hwaddr access_addr = (env->mxccregs[0] & 0xffffffffULL) + 8 * i;
892
893 env->mxccdata[i] = address_space_ldq(cs->as,
894 access_addr,
895 MEMTXATTRS_UNSPECIFIED,
896 &result);
897 if (result != MEMTX_OK) {
898 /* TODO: investigate whether this is the right behaviour */
899 sparc_raise_mmu_fault(cs, access_addr, false, false,
900 false, size, GETPC());
901 }
902 }
903 break;
904 }
905 case 0x01c00200: /* MXCC stream destination */
906 {
907 int i;
908
909 if (size == 8) {
910 env->mxccregs[1] = val;
911 } else {
912 qemu_log_mask(LOG_UNIMP,
913 "%08x: unimplemented access size: %d\n", addr,
914 size);
915 }
916
917 for (i = 0; i < 4; i++) {
918 MemTxResult result;
919 hwaddr access_addr = (env->mxccregs[1] & 0xffffffffULL) + 8 * i;
920
921 address_space_stq(cs->as, access_addr, env->mxccdata[i],
922 MEMTXATTRS_UNSPECIFIED, &result);
923
924 if (result != MEMTX_OK) {
925 /* TODO: investigate whether this is the right behaviour */
926 sparc_raise_mmu_fault(cs, access_addr, true, false,
927 false, size, GETPC());
928 }
929 }
930 break;
931 }
932 case 0x01c00a00: /* MXCC control register */
933 if (size == 8) {
934 env->mxccregs[3] = val;
935 } else {
936 qemu_log_mask(LOG_UNIMP,
937 "%08x: unimplemented access size: %d\n", addr,
938 size);
939 }
940 break;
941 case 0x01c00a04: /* MXCC control register */
942 if (size == 4) {
943 env->mxccregs[3] = (env->mxccregs[3] & 0xffffffff00000000ULL)
944 | val;
945 } else {
946 qemu_log_mask(LOG_UNIMP,
947 "%08x: unimplemented access size: %d\n", addr,
948 size);
949 }
950 break;
951 case 0x01c00e00: /* MXCC error register */
952 /* writing a 1 bit clears the error */
953 if (size == 8) {
954 env->mxccregs[6] &= ~val;
955 } else {
956 qemu_log_mask(LOG_UNIMP,
957 "%08x: unimplemented access size: %d\n", addr,
958 size);
959 }
960 break;
961 case 0x01c00f00: /* MBus port address register */
962 if (size == 8) {
963 env->mxccregs[7] = val;
964 } else {
965 qemu_log_mask(LOG_UNIMP,
966 "%08x: unimplemented access size: %d\n", addr,
967 size);
968 }
969 break;
970 default:
971 qemu_log_mask(LOG_UNIMP,
972 "%08x: unimplemented address, size: %d\n", addr,
973 size);
974 break;
975 }
976 DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %" PRIx64 "\n",
977 asi, size, addr, val);
978 #ifdef DEBUG_MXCC
979 dump_mxcc(env);
980 #endif
981 break;
982 case ASI_M_FLUSH_PROBE: /* SuperSparc MMU flush */
983 case ASI_LEON_MMUFLUSH: /* LEON3 MMU flush */
984 {
985 int mmulev;
986
987 mmulev = (addr >> 8) & 15;
988 DPRINTF_MMU("mmu flush level %d\n", mmulev);
989 switch (mmulev) {
990 case 0: /* flush page */
991 tlb_flush_page(cs, addr & 0xfffff000);
992 break;
993 case 1: /* flush segment (256k) */
994 case 2: /* flush region (16M) */
995 case 3: /* flush context (4G) */
996 case 4: /* flush entire */
997 tlb_flush(cs);
998 break;
999 default:
1000 break;
1001 }
1002 #ifdef DEBUG_MMU
1003 dump_mmu(env);
1004 #endif
1005 }
1006 break;
1007 case ASI_M_MMUREGS: /* write MMU regs */
1008 case ASI_LEON_MMUREGS: /* LEON3 write MMU regs */
1009 {
1010 int reg = (addr >> 8) & 0x1f;
1011 uint32_t oldreg;
1012
1013 oldreg = env->mmuregs[reg];
1014 switch (reg) {
1015 case 0: /* Control Register */
1016 env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) |
1017 (val & 0x00ffffff);
1018 /* Mappings generated during no-fault mode
1019 are invalid in normal mode. */
1020 if ((oldreg ^ env->mmuregs[reg])
1021 & (MMU_NF | env->def.mmu_bm)) {
1022 tlb_flush(cs);
1023 }
1024 break;
1025 case 1: /* Context Table Pointer Register */
1026 env->mmuregs[reg] = val & env->def.mmu_ctpr_mask;
1027 break;
1028 case 2: /* Context Register */
1029 env->mmuregs[reg] = val & env->def.mmu_cxr_mask;
1030 if (oldreg != env->mmuregs[reg]) {
1031 /* we flush when the MMU context changes because
1032 QEMU has no MMU context support */
1033 tlb_flush(cs);
1034 }
1035 break;
1036 case 3: /* Synchronous Fault Status Register with Clear */
1037 case 4: /* Synchronous Fault Address Register */
1038 break;
1039 case 0x10: /* TLB Replacement Control Register */
1040 env->mmuregs[reg] = val & env->def.mmu_trcr_mask;
1041 break;
1042 case 0x13: /* Synchronous Fault Status Register with Read
1043 and Clear */
1044 env->mmuregs[3] = val & env->def.mmu_sfsr_mask;
1045 break;
1046 case 0x14: /* Synchronous Fault Address Register */
1047 env->mmuregs[4] = val;
1048 break;
1049 default:
1050 env->mmuregs[reg] = val;
1051 break;
1052 }
1053 if (oldreg != env->mmuregs[reg]) {
1054 DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n",
1055 reg, oldreg, env->mmuregs[reg]);
1056 }
1057 #ifdef DEBUG_MMU
1058 dump_mmu(env);
1059 #endif
1060 }
1061 break;
1062 case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
1063 case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
1064 case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
1065 break;
1066 case ASI_M_TXTC_TAG: /* I-cache tag */
1067 case ASI_M_TXTC_DATA: /* I-cache data */
1068 case ASI_M_DATAC_TAG: /* D-cache tag */
1069 case ASI_M_DATAC_DATA: /* D-cache data */
1070 case ASI_M_FLUSH_PAGE: /* I/D-cache flush page */
1071 case ASI_M_FLUSH_SEG: /* I/D-cache flush segment */
1072 case ASI_M_FLUSH_REGION: /* I/D-cache flush region */
1073 case ASI_M_FLUSH_CTX: /* I/D-cache flush context */
1074 case ASI_M_FLUSH_USER: /* I/D-cache flush user */
1075 break;
1076 case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
1077 {
1078 MemTxResult result;
1079 hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32);
1080
1081 switch (size) {
1082 case 1:
1083 address_space_stb(cs->as, access_addr, val,
1084 MEMTXATTRS_UNSPECIFIED, &result);
1085 break;
1086 case 2:
1087 address_space_stw(cs->as, access_addr, val,
1088 MEMTXATTRS_UNSPECIFIED, &result);
1089 break;
1090 case 4:
1091 default:
1092 address_space_stl(cs->as, access_addr, val,
1093 MEMTXATTRS_UNSPECIFIED, &result);
1094 break;
1095 case 8:
1096 address_space_stq(cs->as, access_addr, val,
1097 MEMTXATTRS_UNSPECIFIED, &result);
1098 break;
1099 }
1100 if (result != MEMTX_OK) {
1101 sparc_raise_mmu_fault(cs, access_addr, true, false, false,
1102 size, GETPC());
1103 }
1104 }
1105 break;
1106 case 0x30: /* store buffer tags or Turbosparc secondary cache diagnostic */
1107 case 0x31: /* store buffer data, Ross RT620 I-cache flush or
1108 Turbosparc snoop RAM */
1109 case 0x32: /* store buffer control or Turbosparc page table
1110 descriptor diagnostic */
1111 case 0x36: /* I-cache flash clear */
1112 case 0x37: /* D-cache flash clear */
1113 break;
1114 case 0x38: /* SuperSPARC MMU Breakpoint Control Registers*/
1115 {
1116 int reg = (addr >> 8) & 3;
1117
1118 switch (reg) {
1119 case 0: /* Breakpoint Value (Addr) */
1120 env->mmubpregs[reg] = (val & 0xfffffffffULL);
1121 break;
1122 case 1: /* Breakpoint Mask */
1123 env->mmubpregs[reg] = (val & 0xfffffffffULL);
1124 break;
1125 case 2: /* Breakpoint Control */
1126 env->mmubpregs[reg] = (val & 0x7fULL);
1127 break;
1128 case 3: /* Breakpoint Status */
1129 env->mmubpregs[reg] = (val & 0xfULL);
1130 break;
1131 }
1132 DPRINTF_MMU("write breakpoint reg[%d] 0x%016x\n", reg,
1133 env->mmuregs[reg]);
1134 }
1135 break;
1136 case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
1137 env->mmubpctrv = val & 0xffffffff;
1138 break;
1139 case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
1140 env->mmubpctrc = val & 0x3;
1141 break;
1142 case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
1143 env->mmubpctrs = val & 0x3;
1144 break;
1145 case 0x4c: /* SuperSPARC MMU Breakpoint Action */
1146 env->mmubpaction = val & 0x1fff;
1147 break;
1148 case ASI_USERTXT: /* User code access, XXX */
1149 case ASI_KERNELTXT: /* Supervisor code access, XXX */
1150 default:
1151 sparc_raise_mmu_fault(cs, addr, true, false, asi, size, GETPC());
1152 break;
1153
1154 case ASI_USERDATA: /* User data access */
1155 case ASI_KERNELDATA: /* Supervisor data access */
1156 case ASI_P:
1157 case ASI_M_BYPASS: /* MMU passthrough */
1158 case ASI_LEON_BYPASS: /* LEON MMU passthrough */
1159 case ASI_M_BCOPY: /* Block copy, sta access */
1160 case ASI_M_BFILL: /* Block fill, stda access */
1161 /* These are always handled inline. */
1162 g_assert_not_reached();
1163 }
1164 #ifdef DEBUG_ASI
1165 dump_asi("write", addr, asi, size, val);
1166 #endif
1167 }
1168
1169 #endif /* CONFIG_USER_ONLY */
1170 #else /* TARGET_SPARC64 */
1171
1172 #ifdef CONFIG_USER_ONLY
1173 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
1174 int asi, uint32_t memop)
1175 {
1176 int size = 1 << (memop & MO_SIZE);
1177 int sign = memop & MO_SIGN;
1178 uint64_t ret = 0;
1179
1180 if (asi < 0x80) {
1181 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
1182 }
1183 do_check_align(env, addr, size - 1, GETPC());
1184 addr = asi_address_mask(env, asi, addr);
1185
1186 switch (asi) {
1187 case ASI_PNF: /* Primary no-fault */
1188 case ASI_PNFL: /* Primary no-fault LE */
1189 case ASI_SNF: /* Secondary no-fault */
1190 case ASI_SNFL: /* Secondary no-fault LE */
1191 if (page_check_range(addr, size, PAGE_READ) == -1) {
1192 ret = 0;
1193 break;
1194 }
1195 switch (size) {
1196 case 1:
1197 ret = cpu_ldub_data(env, addr);
1198 break;
1199 case 2:
1200 ret = cpu_lduw_data(env, addr);
1201 break;
1202 case 4:
1203 ret = cpu_ldl_data(env, addr);
1204 break;
1205 case 8:
1206 ret = cpu_ldq_data(env, addr);
1207 break;
1208 default:
1209 g_assert_not_reached();
1210 }
1211 break;
1212 break;
1213
1214 case ASI_P: /* Primary */
1215 case ASI_PL: /* Primary LE */
1216 case ASI_S: /* Secondary */
1217 case ASI_SL: /* Secondary LE */
1218 /* These are always handled inline. */
1219 g_assert_not_reached();
1220
1221 default:
1222 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
1223 }
1224
1225 /* Convert from little endian */
1226 switch (asi) {
1227 case ASI_PNFL: /* Primary no-fault LE */
1228 case ASI_SNFL: /* Secondary no-fault LE */
1229 switch (size) {
1230 case 2:
1231 ret = bswap16(ret);
1232 break;
1233 case 4:
1234 ret = bswap32(ret);
1235 break;
1236 case 8:
1237 ret = bswap64(ret);
1238 break;
1239 }
1240 }
1241
1242 /* Convert to signed number */
1243 if (sign) {
1244 switch (size) {
1245 case 1:
1246 ret = (int8_t) ret;
1247 break;
1248 case 2:
1249 ret = (int16_t) ret;
1250 break;
1251 case 4:
1252 ret = (int32_t) ret;
1253 break;
1254 }
1255 }
1256 #ifdef DEBUG_ASI
1257 dump_asi("read", addr, asi, size, ret);
1258 #endif
1259 return ret;
1260 }
1261
1262 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
1263 int asi, uint32_t memop)
1264 {
1265 int size = 1 << (memop & MO_SIZE);
1266 #ifdef DEBUG_ASI
1267 dump_asi("write", addr, asi, size, val);
1268 #endif
1269 if (asi < 0x80) {
1270 cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
1271 }
1272 do_check_align(env, addr, size - 1, GETPC());
1273
1274 switch (asi) {
1275 case ASI_P: /* Primary */
1276 case ASI_PL: /* Primary LE */
1277 case ASI_S: /* Secondary */
1278 case ASI_SL: /* Secondary LE */
1279 /* These are always handled inline. */
1280 g_assert_not_reached();
1281
1282 case ASI_PNF: /* Primary no-fault, RO */
1283 case ASI_SNF: /* Secondary no-fault, RO */
1284 case ASI_PNFL: /* Primary no-fault LE, RO */
1285 case ASI_SNFL: /* Secondary no-fault LE, RO */
1286 default:
1287 cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
1288 }
1289 }
1290
1291 #else /* CONFIG_USER_ONLY */
1292
1293 uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
1294 int asi, uint32_t memop)
1295 {
1296 int size = 1 << (memop & MO_SIZE);
1297 int sign = memop & MO_SIGN;
1298 CPUState *cs = env_cpu(env);
1299 uint64_t ret = 0;
1300 #if defined(DEBUG_ASI)
1301 target_ulong last_addr = addr;
1302 #endif
1303
1304 asi &= 0xff;
1305
1306 do_check_asi(env, asi, GETPC());
1307 do_check_align(env, addr, size - 1, GETPC());
1308 addr = asi_address_mask(env, asi, addr);
1309
1310 switch (asi) {
1311 case ASI_PNF:
1312 case ASI_PNFL:
1313 case ASI_SNF:
1314 case ASI_SNFL:
1315 {
1316 MemOpIdx oi;
1317 int idx = (env->pstate & PS_PRIV
1318 ? (asi & 1 ? MMU_KERNEL_SECONDARY_IDX : MMU_KERNEL_IDX)
1319 : (asi & 1 ? MMU_USER_SECONDARY_IDX : MMU_USER_IDX));
1320
1321 if (cpu_get_phys_page_nofault(env, addr, idx) == -1ULL) {
1322 #ifdef DEBUG_ASI
1323 dump_asi("read ", last_addr, asi, size, ret);
1324 #endif
1325 /* exception_index is set in get_physical_address_data. */
1326 cpu_raise_exception_ra(env, cs->exception_index, GETPC());
1327 }
1328 oi = make_memop_idx(memop, idx);
1329 switch (size) {
1330 case 1:
1331 ret = cpu_ldb_mmu(env, addr, oi, GETPC());
1332 break;
1333 case 2:
1334 if (asi & 8) {
1335 ret = cpu_ldw_le_mmu(env, addr, oi, GETPC());
1336 } else {
1337 ret = cpu_ldw_be_mmu(env, addr, oi, GETPC());
1338 }
1339 break;
1340 case 4:
1341 if (asi & 8) {
1342 ret = cpu_ldl_le_mmu(env, addr, oi, GETPC());
1343 } else {
1344 ret = cpu_ldl_be_mmu(env, addr, oi, GETPC());
1345 }
1346 break;
1347 case 8:
1348 if (asi & 8) {
1349 ret = cpu_ldq_le_mmu(env, addr, oi, GETPC());
1350 } else {
1351 ret = cpu_ldq_be_mmu(env, addr, oi, GETPC());
1352 }
1353 break;
1354 default:
1355 g_assert_not_reached();
1356 }
1357 }
1358 break;
1359
1360 case ASI_AIUP: /* As if user primary */
1361 case ASI_AIUS: /* As if user secondary */
1362 case ASI_AIUPL: /* As if user primary LE */
1363 case ASI_AIUSL: /* As if user secondary LE */
1364 case ASI_P: /* Primary */
1365 case ASI_S: /* Secondary */
1366 case ASI_PL: /* Primary LE */
1367 case ASI_SL: /* Secondary LE */
1368 case ASI_REAL: /* Bypass */
1369 case ASI_REAL_IO: /* Bypass, non-cacheable */
1370 case ASI_REAL_L: /* Bypass LE */
1371 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
1372 case ASI_N: /* Nucleus */
1373 case ASI_NL: /* Nucleus Little Endian (LE) */
1374 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
1375 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
1376 case ASI_TWINX_AIUP: /* As if user primary, twinx */
1377 case ASI_TWINX_AIUS: /* As if user secondary, twinx */
1378 case ASI_TWINX_REAL: /* Real address, twinx */
1379 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
1380 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
1381 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
1382 case ASI_TWINX_N: /* Nucleus, twinx */
1383 case ASI_TWINX_NL: /* Nucleus, twinx, LE */
1384 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
1385 case ASI_TWINX_P: /* Primary, twinx */
1386 case ASI_TWINX_PL: /* Primary, twinx, LE */
1387 case ASI_TWINX_S: /* Secondary, twinx */
1388 case ASI_TWINX_SL: /* Secondary, twinx, LE */
1389 /* These are always handled inline. */
1390 g_assert_not_reached();
1391
1392 case ASI_UPA_CONFIG: /* UPA config */
1393 /* XXX */
1394 break;
1395 case ASI_LSU_CONTROL: /* LSU */
1396 ret = env->lsu;
1397 break;
1398 case ASI_IMMU: /* I-MMU regs */
1399 {
1400 int reg = (addr >> 3) & 0xf;
1401 switch (reg) {
1402 case 0:
1403 /* 0x00 I-TSB Tag Target register */
1404 ret = ultrasparc_tag_target(env->immu.tag_access);
1405 break;
1406 case 3: /* SFSR */
1407 ret = env->immu.sfsr;
1408 break;
1409 case 5: /* TSB access */
1410 ret = env->immu.tsb;
1411 break;
1412 case 6:
1413 /* 0x30 I-TSB Tag Access register */
1414 ret = env->immu.tag_access;
1415 break;
1416 default:
1417 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC());
1418 ret = 0;
1419 }
1420 break;
1421 }
1422 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer */
1423 {
1424 /* env->immuregs[5] holds I-MMU TSB register value
1425 env->immuregs[6] holds I-MMU Tag Access register value */
1426 ret = ultrasparc_tsb_pointer(env, &env->immu, 0);
1427 break;
1428 }
1429 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer */
1430 {
1431 /* env->immuregs[5] holds I-MMU TSB register value
1432 env->immuregs[6] holds I-MMU Tag Access register value */
1433 ret = ultrasparc_tsb_pointer(env, &env->immu, 1);
1434 break;
1435 }
1436 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
1437 {
1438 int reg = (addr >> 3) & 0x3f;
1439
1440 ret = env->itlb[reg].tte;
1441 break;
1442 }
1443 case ASI_ITLB_TAG_READ: /* I-MMU tag read */
1444 {
1445 int reg = (addr >> 3) & 0x3f;
1446
1447 ret = env->itlb[reg].tag;
1448 break;
1449 }
1450 case ASI_DMMU: /* D-MMU regs */
1451 {
1452 int reg = (addr >> 3) & 0xf;
1453 switch (reg) {
1454 case 0:
1455 /* 0x00 D-TSB Tag Target register */
1456 ret = ultrasparc_tag_target(env->dmmu.tag_access);
1457 break;
1458 case 1: /* 0x08 Primary Context */
1459 ret = env->dmmu.mmu_primary_context;
1460 break;
1461 case 2: /* 0x10 Secondary Context */
1462 ret = env->dmmu.mmu_secondary_context;
1463 break;
1464 case 3: /* SFSR */
1465 ret = env->dmmu.sfsr;
1466 break;
1467 case 4: /* 0x20 SFAR */
1468 ret = env->dmmu.sfar;
1469 break;
1470 case 5: /* 0x28 TSB access */
1471 ret = env->dmmu.tsb;
1472 break;
1473 case 6: /* 0x30 D-TSB Tag Access register */
1474 ret = env->dmmu.tag_access;
1475 break;
1476 case 7:
1477 ret = env->dmmu.virtual_watchpoint;
1478 break;
1479 case 8:
1480 ret = env->dmmu.physical_watchpoint;
1481 break;
1482 default:
1483 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC());
1484 ret = 0;
1485 }
1486 break;
1487 }
1488 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer */
1489 {
1490 /* env->dmmuregs[5] holds D-MMU TSB register value
1491 env->dmmuregs[6] holds D-MMU Tag Access register value */
1492 ret = ultrasparc_tsb_pointer(env, &env->dmmu, 0);
1493 break;
1494 }
1495 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer */
1496 {
1497 /* env->dmmuregs[5] holds D-MMU TSB register value
1498 env->dmmuregs[6] holds D-MMU Tag Access register value */
1499 ret = ultrasparc_tsb_pointer(env, &env->dmmu, 1);
1500 break;
1501 }
1502 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
1503 {
1504 int reg = (addr >> 3) & 0x3f;
1505
1506 ret = env->dtlb[reg].tte;
1507 break;
1508 }
1509 case ASI_DTLB_TAG_READ: /* D-MMU tag read */
1510 {
1511 int reg = (addr >> 3) & 0x3f;
1512
1513 ret = env->dtlb[reg].tag;
1514 break;
1515 }
1516 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
1517 break;
1518 case ASI_INTR_RECEIVE: /* Interrupt data receive */
1519 ret = env->ivec_status;
1520 break;
1521 case ASI_INTR_R: /* Incoming interrupt vector, RO */
1522 {
1523 int reg = (addr >> 4) & 0x3;
1524 if (reg < 3) {
1525 ret = env->ivec_data[reg];
1526 }
1527 break;
1528 }
1529 case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */
1530 if (unlikely((addr >= 0x20) && (addr < 0x30))) {
1531 /* Hyperprivileged access only */
1532 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC());
1533 }
1534 /* fall through */
1535 case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */
1536 {
1537 unsigned int i = (addr >> 3) & 0x7;
1538 ret = env->scratch[i];
1539 break;
1540 }
1541 case ASI_MMU: /* UA2005 Context ID registers */
1542 switch ((addr >> 3) & 0x3) {
1543 case 1:
1544 ret = env->dmmu.mmu_primary_context;
1545 break;
1546 case 2:
1547 ret = env->dmmu.mmu_secondary_context;
1548 break;
1549 default:
1550 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1551 }
1552 break;
1553 case ASI_DCACHE_DATA: /* D-cache data */
1554 case ASI_DCACHE_TAG: /* D-cache tag access */
1555 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
1556 case ASI_AFSR: /* E-cache asynchronous fault status */
1557 case ASI_AFAR: /* E-cache asynchronous fault address */
1558 case ASI_EC_TAG_DATA: /* E-cache tag data */
1559 case ASI_IC_INSTR: /* I-cache instruction access */
1560 case ASI_IC_TAG: /* I-cache tag access */
1561 case ASI_IC_PRE_DECODE: /* I-cache predecode */
1562 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
1563 case ASI_EC_W: /* E-cache tag */
1564 case ASI_EC_R: /* E-cache tag */
1565 break;
1566 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer */
1567 case ASI_ITLB_DATA_IN: /* I-MMU data in, WO */
1568 case ASI_IMMU_DEMAP: /* I-MMU demap, WO */
1569 case ASI_DTLB_DATA_IN: /* D-MMU data in, WO */
1570 case ASI_DMMU_DEMAP: /* D-MMU demap, WO */
1571 case ASI_INTR_W: /* Interrupt vector, WO */
1572 default:
1573 sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC());
1574 ret = 0;
1575 break;
1576 }
1577
1578 /* Convert to signed number */
1579 if (sign) {
1580 switch (size) {
1581 case 1:
1582 ret = (int8_t) ret;
1583 break;
1584 case 2:
1585 ret = (int16_t) ret;
1586 break;
1587 case 4:
1588 ret = (int32_t) ret;
1589 break;
1590 default:
1591 break;
1592 }
1593 }
1594 #ifdef DEBUG_ASI
1595 dump_asi("read ", last_addr, asi, size, ret);
1596 #endif
1597 return ret;
1598 }
1599
1600 void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
1601 int asi, uint32_t memop)
1602 {
1603 int size = 1 << (memop & MO_SIZE);
1604 CPUState *cs = env_cpu(env);
1605
1606 #ifdef DEBUG_ASI
1607 dump_asi("write", addr, asi, size, val);
1608 #endif
1609
1610 asi &= 0xff;
1611
1612 do_check_asi(env, asi, GETPC());
1613 do_check_align(env, addr, size - 1, GETPC());
1614 addr = asi_address_mask(env, asi, addr);
1615
1616 switch (asi) {
1617 case ASI_AIUP: /* As if user primary */
1618 case ASI_AIUS: /* As if user secondary */
1619 case ASI_AIUPL: /* As if user primary LE */
1620 case ASI_AIUSL: /* As if user secondary LE */
1621 case ASI_P: /* Primary */
1622 case ASI_S: /* Secondary */
1623 case ASI_PL: /* Primary LE */
1624 case ASI_SL: /* Secondary LE */
1625 case ASI_REAL: /* Bypass */
1626 case ASI_REAL_IO: /* Bypass, non-cacheable */
1627 case ASI_REAL_L: /* Bypass LE */
1628 case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
1629 case ASI_N: /* Nucleus */
1630 case ASI_NL: /* Nucleus Little Endian (LE) */
1631 case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
1632 case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
1633 case ASI_TWINX_AIUP: /* As if user primary, twinx */
1634 case ASI_TWINX_AIUS: /* As if user secondary, twinx */
1635 case ASI_TWINX_REAL: /* Real address, twinx */
1636 case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
1637 case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
1638 case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
1639 case ASI_TWINX_N: /* Nucleus, twinx */
1640 case ASI_TWINX_NL: /* Nucleus, twinx, LE */
1641 /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
1642 case ASI_TWINX_P: /* Primary, twinx */
1643 case ASI_TWINX_PL: /* Primary, twinx, LE */
1644 case ASI_TWINX_S: /* Secondary, twinx */
1645 case ASI_TWINX_SL: /* Secondary, twinx, LE */
1646 /* These are always handled inline. */
1647 g_assert_not_reached();
1648 /* these ASIs have different functions on UltraSPARC-IIIi
1649 * and UA2005 CPUs. Use the explicit numbers to avoid confusion
1650 */
1651 case 0x31:
1652 case 0x32:
1653 case 0x39:
1654 case 0x3a:
1655 if (cpu_has_hypervisor(env)) {
1656 /* UA2005
1657 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS0
1658 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS1
1659 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS0
1660 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS1
1661 */
1662 int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2);
1663 env->dmmu.sun4v_tsb_pointers[idx] = val;
1664 } else {
1665 helper_raise_exception(env, TT_ILL_INSN);
1666 }
1667 break;
1668 case 0x33:
1669 case 0x3b:
1670 if (cpu_has_hypervisor(env)) {
1671 /* UA2005
1672 * ASI_DMMU_CTX_ZERO_CONFIG
1673 * ASI_DMMU_CTX_NONZERO_CONFIG
1674 */
1675 env->dmmu.sun4v_ctx_config[(asi & 8) >> 3] = val;
1676 } else {
1677 helper_raise_exception(env, TT_ILL_INSN);
1678 }
1679 break;
1680 case 0x35:
1681 case 0x36:
1682 case 0x3d:
1683 case 0x3e:
1684 if (cpu_has_hypervisor(env)) {
1685 /* UA2005
1686 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS0
1687 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS1
1688 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS0
1689 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS1
1690 */
1691 int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2);
1692 env->immu.sun4v_tsb_pointers[idx] = val;
1693 } else {
1694 helper_raise_exception(env, TT_ILL_INSN);
1695 }
1696 break;
1697 case 0x37:
1698 case 0x3f:
1699 if (cpu_has_hypervisor(env)) {
1700 /* UA2005
1701 * ASI_IMMU_CTX_ZERO_CONFIG
1702 * ASI_IMMU_CTX_NONZERO_CONFIG
1703 */
1704 env->immu.sun4v_ctx_config[(asi & 8) >> 3] = val;
1705 } else {
1706 helper_raise_exception(env, TT_ILL_INSN);
1707 }
1708 break;
1709 case ASI_UPA_CONFIG: /* UPA config */
1710 /* XXX */
1711 return;
1712 case ASI_LSU_CONTROL: /* LSU */
1713 env->lsu = val & (DMMU_E | IMMU_E);
1714 return;
1715 case ASI_IMMU: /* I-MMU regs */
1716 {
1717 int reg = (addr >> 3) & 0xf;
1718 uint64_t oldreg;
1719
1720 oldreg = env->immu.mmuregs[reg];
1721 switch (reg) {
1722 case 0: /* RO */
1723 return;
1724 case 1: /* Not in I-MMU */
1725 case 2:
1726 return;
1727 case 3: /* SFSR */
1728 if ((val & 1) == 0) {
1729 val = 0; /* Clear SFSR */
1730 }
1731 env->immu.sfsr = val;
1732 break;
1733 case 4: /* RO */
1734 return;
1735 case 5: /* TSB access */
1736 DPRINTF_MMU("immu TSB write: 0x%016" PRIx64 " -> 0x%016"
1737 PRIx64 "\n", env->immu.tsb, val);
1738 env->immu.tsb = val;
1739 break;
1740 case 6: /* Tag access */
1741 env->immu.tag_access = val;
1742 break;
1743 case 7:
1744 case 8:
1745 return;
1746 default:
1747 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1748 break;
1749 }
1750
1751 if (oldreg != env->immu.mmuregs[reg]) {
1752 DPRINTF_MMU("immu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
1753 PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1754 }
1755 #ifdef DEBUG_MMU
1756 dump_mmu(env);
1757 #endif
1758 return;
1759 }
1760 case ASI_ITLB_DATA_IN: /* I-MMU data in */
1761 /* ignore real translation entries */
1762 if (!(addr & TLB_UST1_IS_REAL_BIT)) {
1763 replace_tlb_1bit_lru(env->itlb, env->immu.tag_access,
1764 val, "immu", env, addr);
1765 }
1766 return;
1767 case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
1768 {
1769 /* TODO: auto demap */
1770
1771 unsigned int i = (addr >> 3) & 0x3f;
1772
1773 /* ignore real translation entries */
1774 if (!(addr & TLB_UST1_IS_REAL_BIT)) {
1775 replace_tlb_entry(&env->itlb[i], env->immu.tag_access,
1776 sun4v_tte_to_sun4u(env, addr, val), env);
1777 }
1778 #ifdef DEBUG_MMU
1779 DPRINTF_MMU("immu data access replaced entry [%i]\n", i);
1780 dump_mmu(env);
1781 #endif
1782 return;
1783 }
1784 case ASI_IMMU_DEMAP: /* I-MMU demap */
1785 demap_tlb(env->itlb, addr, "immu", env);
1786 return;
1787 case ASI_DMMU: /* D-MMU regs */
1788 {
1789 int reg = (addr >> 3) & 0xf;
1790 uint64_t oldreg;
1791
1792 oldreg = env->dmmu.mmuregs[reg];
1793 switch (reg) {
1794 case 0: /* RO */
1795 case 4:
1796 return;
1797 case 3: /* SFSR */
1798 if ((val & 1) == 0) {
1799 val = 0; /* Clear SFSR, Fault address */
1800 env->dmmu.sfar = 0;
1801 }
1802 env->dmmu.sfsr = val;
1803 break;
1804 case 1: /* Primary context */
1805 env->dmmu.mmu_primary_context = val;
1806 /* can be optimized to only flush MMU_USER_IDX
1807 and MMU_KERNEL_IDX entries */
1808 tlb_flush(cs);
1809 break;
1810 case 2: /* Secondary context */
1811 env->dmmu.mmu_secondary_context = val;
1812 /* can be optimized to only flush MMU_USER_SECONDARY_IDX
1813 and MMU_KERNEL_SECONDARY_IDX entries */
1814 tlb_flush(cs);
1815 break;
1816 case 5: /* TSB access */
1817 DPRINTF_MMU("dmmu TSB write: 0x%016" PRIx64 " -> 0x%016"
1818 PRIx64 "\n", env->dmmu.tsb, val);
1819 env->dmmu.tsb = val;
1820 break;
1821 case 6: /* Tag access */
1822 env->dmmu.tag_access = val;
1823 break;
1824 case 7: /* Virtual Watchpoint */
1825 env->dmmu.virtual_watchpoint = val;
1826 break;
1827 case 8: /* Physical Watchpoint */
1828 env->dmmu.physical_watchpoint = val;
1829 break;
1830 default:
1831 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1832 break;
1833 }
1834
1835 if (oldreg != env->dmmu.mmuregs[reg]) {
1836 DPRINTF_MMU("dmmu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
1837 PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1838 }
1839 #ifdef DEBUG_MMU
1840 dump_mmu(env);
1841 #endif
1842 return;
1843 }
1844 case ASI_DTLB_DATA_IN: /* D-MMU data in */
1845 /* ignore real translation entries */
1846 if (!(addr & TLB_UST1_IS_REAL_BIT)) {
1847 replace_tlb_1bit_lru(env->dtlb, env->dmmu.tag_access,
1848 val, "dmmu", env, addr);
1849 }
1850 return;
1851 case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
1852 {
1853 unsigned int i = (addr >> 3) & 0x3f;
1854
1855 /* ignore real translation entries */
1856 if (!(addr & TLB_UST1_IS_REAL_BIT)) {
1857 replace_tlb_entry(&env->dtlb[i], env->dmmu.tag_access,
1858 sun4v_tte_to_sun4u(env, addr, val), env);
1859 }
1860 #ifdef DEBUG_MMU
1861 DPRINTF_MMU("dmmu data access replaced entry [%i]\n", i);
1862 dump_mmu(env);
1863 #endif
1864 return;
1865 }
1866 case ASI_DMMU_DEMAP: /* D-MMU demap */
1867 demap_tlb(env->dtlb, addr, "dmmu", env);
1868 return;
1869 case ASI_INTR_RECEIVE: /* Interrupt data receive */
1870 env->ivec_status = val & 0x20;
1871 return;
1872 case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */
1873 if (unlikely((addr >= 0x20) && (addr < 0x30))) {
1874 /* Hyperprivileged access only */
1875 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1876 }
1877 /* fall through */
1878 case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */
1879 {
1880 unsigned int i = (addr >> 3) & 0x7;
1881 env->scratch[i] = val;
1882 return;
1883 }
1884 case ASI_MMU: /* UA2005 Context ID registers */
1885 {
1886 switch ((addr >> 3) & 0x3) {
1887 case 1:
1888 env->dmmu.mmu_primary_context = val;
1889 env->immu.mmu_primary_context = val;
1890 tlb_flush_by_mmuidx(cs,
1891 (1 << MMU_USER_IDX) | (1 << MMU_KERNEL_IDX));
1892 break;
1893 case 2:
1894 env->dmmu.mmu_secondary_context = val;
1895 env->immu.mmu_secondary_context = val;
1896 tlb_flush_by_mmuidx(cs,
1897 (1 << MMU_USER_SECONDARY_IDX) |
1898 (1 << MMU_KERNEL_SECONDARY_IDX));
1899 break;
1900 default:
1901 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1902 }
1903 }
1904 return;
1905 case ASI_QUEUE: /* UA2005 CPU mondo queue */
1906 case ASI_DCACHE_DATA: /* D-cache data */
1907 case ASI_DCACHE_TAG: /* D-cache tag access */
1908 case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
1909 case ASI_AFSR: /* E-cache asynchronous fault status */
1910 case ASI_AFAR: /* E-cache asynchronous fault address */
1911 case ASI_EC_TAG_DATA: /* E-cache tag data */
1912 case ASI_IC_INSTR: /* I-cache instruction access */
1913 case ASI_IC_TAG: /* I-cache tag access */
1914 case ASI_IC_PRE_DECODE: /* I-cache predecode */
1915 case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
1916 case ASI_EC_W: /* E-cache tag */
1917 case ASI_EC_R: /* E-cache tag */
1918 return;
1919 case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer, RO */
1920 case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer, RO */
1921 case ASI_ITLB_TAG_READ: /* I-MMU tag read, RO */
1922 case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer, RO */
1923 case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer, RO */
1924 case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer, RO */
1925 case ASI_DTLB_TAG_READ: /* D-MMU tag read, RO */
1926 case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
1927 case ASI_INTR_R: /* Incoming interrupt vector, RO */
1928 case ASI_PNF: /* Primary no-fault, RO */
1929 case ASI_SNF: /* Secondary no-fault, RO */
1930 case ASI_PNFL: /* Primary no-fault LE, RO */
1931 case ASI_SNFL: /* Secondary no-fault LE, RO */
1932 default:
1933 sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC());
1934 return;
1935 }
1936 }
1937 #endif /* CONFIG_USER_ONLY */
1938 #endif /* TARGET_SPARC64 */
1939
1940 #if !defined(CONFIG_USER_ONLY)
1941
1942 void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
1943 vaddr addr, unsigned size,
1944 MMUAccessType access_type,
1945 int mmu_idx, MemTxAttrs attrs,
1946 MemTxResult response, uintptr_t retaddr)
1947 {
1948 bool is_write = access_type == MMU_DATA_STORE;
1949 bool is_exec = access_type == MMU_INST_FETCH;
1950 bool is_asi = false;
1951
1952 sparc_raise_mmu_fault(cs, physaddr, is_write, is_exec,
1953 is_asi, size, retaddr);
1954 }
1955 #endif
1956
1957 #if !defined(CONFIG_USER_ONLY)
1958 void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
1959 MMUAccessType access_type,
1960 int mmu_idx,
1961 uintptr_t retaddr)
1962 {
1963 SPARCCPU *cpu = SPARC_CPU(cs);
1964 CPUSPARCState *env = &cpu->env;
1965
1966 cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr);
1967 }
1968 #endif
QEMU mirror