vmsvga: don't process more than 1024 fifo commands at once
[qemu.git] / target-sparc / cpu.c
1 /*
2 * Sparc CPU init helpers
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 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 "qapi/error.h"
22 #include "cpu.h"
23 #include "qemu/error-report.h"
24 #include "exec/exec-all.h"
25
26 //#define DEBUG_FEATURES
27
28 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *cpu_model);
29
30 /* CPUClass::reset() */
31 static void sparc_cpu_reset(CPUState *s)
32 {
33 SPARCCPU *cpu = SPARC_CPU(s);
34 SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(cpu);
35 CPUSPARCState *env = &cpu->env;
36
37 scc->parent_reset(s);
38
39 memset(env, 0, offsetof(CPUSPARCState, version));
40 tlb_flush(s, 1);
41 env->cwp = 0;
42 #ifndef TARGET_SPARC64
43 env->wim = 1;
44 #endif
45 env->regwptr = env->regbase + (env->cwp * 16);
46 CC_OP = CC_OP_FLAGS;
47 #if defined(CONFIG_USER_ONLY)
48 #ifdef TARGET_SPARC64
49 env->cleanwin = env->nwindows - 2;
50 env->cansave = env->nwindows - 2;
51 env->pstate = PS_RMO | PS_PEF | PS_IE;
52 env->asi = 0x82; /* Primary no-fault */
53 #endif
54 #else
55 #if !defined(TARGET_SPARC64)
56 env->psret = 0;
57 env->psrs = 1;
58 env->psrps = 1;
59 #endif
60 #ifdef TARGET_SPARC64
61 env->pstate = PS_PRIV|PS_RED|PS_PEF|PS_AG;
62 env->hpstate = cpu_has_hypervisor(env) ? HS_PRIV : 0;
63 env->tl = env->maxtl;
64 cpu_tsptr(env)->tt = TT_POWER_ON_RESET;
65 env->lsu = 0;
66 #else
67 env->mmuregs[0] &= ~(MMU_E | MMU_NF);
68 env->mmuregs[0] |= env->def->mmu_bm;
69 #endif
70 env->pc = 0;
71 env->npc = env->pc + 4;
72 #endif
73 env->cache_control = 0;
74 }
75
76 static bool sparc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
77 {
78 if (interrupt_request & CPU_INTERRUPT_HARD) {
79 SPARCCPU *cpu = SPARC_CPU(cs);
80 CPUSPARCState *env = &cpu->env;
81
82 if (cpu_interrupts_enabled(env) && env->interrupt_index > 0) {
83 int pil = env->interrupt_index & 0xf;
84 int type = env->interrupt_index & 0xf0;
85
86 if (type != TT_EXTINT || cpu_pil_allowed(env, pil)) {
87 cs->exception_index = env->interrupt_index;
88 sparc_cpu_do_interrupt(cs);
89 return true;
90 }
91 }
92 }
93 return false;
94 }
95
96 static void cpu_sparc_disas_set_info(CPUState *cpu, disassemble_info *info)
97 {
98 info->print_insn = print_insn_sparc;
99 #ifdef TARGET_SPARC64
100 info->mach = bfd_mach_sparc_v9b;
101 #endif
102 }
103
104 static int cpu_sparc_register(SPARCCPU *cpu, const char *cpu_model)
105 {
106 CPUClass *cc = CPU_GET_CLASS(cpu);
107 CPUSPARCState *env = &cpu->env;
108 char *s = g_strdup(cpu_model);
109 char *featurestr, *name = strtok(s, ",");
110 sparc_def_t def1, *def = &def1;
111 Error *err = NULL;
112
113 if (cpu_sparc_find_by_name(def, name) < 0) {
114 g_free(s);
115 return -1;
116 }
117
118 env->def = g_new0(sparc_def_t, 1);
119 memcpy(env->def, def, sizeof(*def));
120
121 featurestr = strtok(NULL, ",");
122 cc->parse_features(CPU(cpu), featurestr, &err);
123 g_free(s);
124 if (err) {
125 error_report_err(err);
126 return -1;
127 }
128
129 env->version = def->iu_version;
130 env->fsr = def->fpu_version;
131 env->nwindows = def->nwindows;
132 #if !defined(TARGET_SPARC64)
133 env->mmuregs[0] |= def->mmu_version;
134 cpu_sparc_set_id(env, 0);
135 env->mxccregs[7] |= def->mxcc_version;
136 #else
137 env->mmu_version = def->mmu_version;
138 env->maxtl = def->maxtl;
139 env->version |= def->maxtl << 8;
140 env->version |= def->nwindows - 1;
141 #endif
142 return 0;
143 }
144
145 SPARCCPU *cpu_sparc_init(const char *cpu_model)
146 {
147 SPARCCPU *cpu;
148
149 cpu = SPARC_CPU(object_new(TYPE_SPARC_CPU));
150
151 if (cpu_sparc_register(cpu, cpu_model) < 0) {
152 object_unref(OBJECT(cpu));
153 return NULL;
154 }
155
156 object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
157
158 return cpu;
159 }
160
161 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
162 {
163 #if !defined(TARGET_SPARC64)
164 env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
165 #endif
166 }
167
168 static const sparc_def_t sparc_defs[] = {
169 #ifdef TARGET_SPARC64
170 {
171 .name = "Fujitsu Sparc64",
172 .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)),
173 .fpu_version = 0x00000000,
174 .mmu_version = mmu_us_12,
175 .nwindows = 4,
176 .maxtl = 4,
177 .features = CPU_DEFAULT_FEATURES,
178 },
179 {
180 .name = "Fujitsu Sparc64 III",
181 .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)),
182 .fpu_version = 0x00000000,
183 .mmu_version = mmu_us_12,
184 .nwindows = 5,
185 .maxtl = 4,
186 .features = CPU_DEFAULT_FEATURES,
187 },
188 {
189 .name = "Fujitsu Sparc64 IV",
190 .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)),
191 .fpu_version = 0x00000000,
192 .mmu_version = mmu_us_12,
193 .nwindows = 8,
194 .maxtl = 5,
195 .features = CPU_DEFAULT_FEATURES,
196 },
197 {
198 .name = "Fujitsu Sparc64 V",
199 .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)),
200 .fpu_version = 0x00000000,
201 .mmu_version = mmu_us_12,
202 .nwindows = 8,
203 .maxtl = 5,
204 .features = CPU_DEFAULT_FEATURES,
205 },
206 {
207 .name = "TI UltraSparc I",
208 .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
209 .fpu_version = 0x00000000,
210 .mmu_version = mmu_us_12,
211 .nwindows = 8,
212 .maxtl = 5,
213 .features = CPU_DEFAULT_FEATURES,
214 },
215 {
216 .name = "TI UltraSparc II",
217 .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)),
218 .fpu_version = 0x00000000,
219 .mmu_version = mmu_us_12,
220 .nwindows = 8,
221 .maxtl = 5,
222 .features = CPU_DEFAULT_FEATURES,
223 },
224 {
225 .name = "TI UltraSparc IIi",
226 .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)),
227 .fpu_version = 0x00000000,
228 .mmu_version = mmu_us_12,
229 .nwindows = 8,
230 .maxtl = 5,
231 .features = CPU_DEFAULT_FEATURES,
232 },
233 {
234 .name = "TI UltraSparc IIe",
235 .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)),
236 .fpu_version = 0x00000000,
237 .mmu_version = mmu_us_12,
238 .nwindows = 8,
239 .maxtl = 5,
240 .features = CPU_DEFAULT_FEATURES,
241 },
242 {
243 .name = "Sun UltraSparc III",
244 .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)),
245 .fpu_version = 0x00000000,
246 .mmu_version = mmu_us_12,
247 .nwindows = 8,
248 .maxtl = 5,
249 .features = CPU_DEFAULT_FEATURES,
250 },
251 {
252 .name = "Sun UltraSparc III Cu",
253 .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)),
254 .fpu_version = 0x00000000,
255 .mmu_version = mmu_us_3,
256 .nwindows = 8,
257 .maxtl = 5,
258 .features = CPU_DEFAULT_FEATURES,
259 },
260 {
261 .name = "Sun UltraSparc IIIi",
262 .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)),
263 .fpu_version = 0x00000000,
264 .mmu_version = mmu_us_12,
265 .nwindows = 8,
266 .maxtl = 5,
267 .features = CPU_DEFAULT_FEATURES,
268 },
269 {
270 .name = "Sun UltraSparc IV",
271 .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)),
272 .fpu_version = 0x00000000,
273 .mmu_version = mmu_us_4,
274 .nwindows = 8,
275 .maxtl = 5,
276 .features = CPU_DEFAULT_FEATURES,
277 },
278 {
279 .name = "Sun UltraSparc IV+",
280 .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)),
281 .fpu_version = 0x00000000,
282 .mmu_version = mmu_us_12,
283 .nwindows = 8,
284 .maxtl = 5,
285 .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_CMT,
286 },
287 {
288 .name = "Sun UltraSparc IIIi+",
289 .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)),
290 .fpu_version = 0x00000000,
291 .mmu_version = mmu_us_3,
292 .nwindows = 8,
293 .maxtl = 5,
294 .features = CPU_DEFAULT_FEATURES,
295 },
296 {
297 .name = "Sun UltraSparc T1",
298 /* defined in sparc_ifu_fdp.v and ctu.h */
299 .iu_version = ((0x3eULL << 48) | (0x23ULL << 32) | (0x02ULL << 24)),
300 .fpu_version = 0x00000000,
301 .mmu_version = mmu_sun4v,
302 .nwindows = 8,
303 .maxtl = 6,
304 .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
305 | CPU_FEATURE_GL,
306 },
307 {
308 .name = "Sun UltraSparc T2",
309 /* defined in tlu_asi_ctl.v and n2_revid_cust.v */
310 .iu_version = ((0x3eULL << 48) | (0x24ULL << 32) | (0x02ULL << 24)),
311 .fpu_version = 0x00000000,
312 .mmu_version = mmu_sun4v,
313 .nwindows = 8,
314 .maxtl = 6,
315 .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
316 | CPU_FEATURE_GL,
317 },
318 {
319 .name = "NEC UltraSparc I",
320 .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
321 .fpu_version = 0x00000000,
322 .mmu_version = mmu_us_12,
323 .nwindows = 8,
324 .maxtl = 5,
325 .features = CPU_DEFAULT_FEATURES,
326 },
327 #else
328 {
329 .name = "Fujitsu MB86904",
330 .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
331 .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
332 .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
333 .mmu_bm = 0x00004000,
334 .mmu_ctpr_mask = 0x00ffffc0,
335 .mmu_cxr_mask = 0x000000ff,
336 .mmu_sfsr_mask = 0x00016fff,
337 .mmu_trcr_mask = 0x00ffffff,
338 .nwindows = 8,
339 .features = CPU_DEFAULT_FEATURES,
340 },
341 {
342 .name = "Fujitsu MB86907",
343 .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
344 .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
345 .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
346 .mmu_bm = 0x00004000,
347 .mmu_ctpr_mask = 0xffffffc0,
348 .mmu_cxr_mask = 0x000000ff,
349 .mmu_sfsr_mask = 0x00016fff,
350 .mmu_trcr_mask = 0xffffffff,
351 .nwindows = 8,
352 .features = CPU_DEFAULT_FEATURES,
353 },
354 {
355 .name = "TI MicroSparc I",
356 .iu_version = 0x41000000,
357 .fpu_version = 4 << 17,
358 .mmu_version = 0x41000000,
359 .mmu_bm = 0x00004000,
360 .mmu_ctpr_mask = 0x007ffff0,
361 .mmu_cxr_mask = 0x0000003f,
362 .mmu_sfsr_mask = 0x00016fff,
363 .mmu_trcr_mask = 0x0000003f,
364 .nwindows = 7,
365 .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
366 CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
367 CPU_FEATURE_FMUL,
368 },
369 {
370 .name = "TI MicroSparc II",
371 .iu_version = 0x42000000,
372 .fpu_version = 4 << 17,
373 .mmu_version = 0x02000000,
374 .mmu_bm = 0x00004000,
375 .mmu_ctpr_mask = 0x00ffffc0,
376 .mmu_cxr_mask = 0x000000ff,
377 .mmu_sfsr_mask = 0x00016fff,
378 .mmu_trcr_mask = 0x00ffffff,
379 .nwindows = 8,
380 .features = CPU_DEFAULT_FEATURES,
381 },
382 {
383 .name = "TI MicroSparc IIep",
384 .iu_version = 0x42000000,
385 .fpu_version = 4 << 17,
386 .mmu_version = 0x04000000,
387 .mmu_bm = 0x00004000,
388 .mmu_ctpr_mask = 0x00ffffc0,
389 .mmu_cxr_mask = 0x000000ff,
390 .mmu_sfsr_mask = 0x00016bff,
391 .mmu_trcr_mask = 0x00ffffff,
392 .nwindows = 8,
393 .features = CPU_DEFAULT_FEATURES,
394 },
395 {
396 .name = "TI SuperSparc 40", /* STP1020NPGA */
397 .iu_version = 0x41000000, /* SuperSPARC 2.x */
398 .fpu_version = 0 << 17,
399 .mmu_version = 0x00000800, /* SuperSPARC 2.x, no MXCC */
400 .mmu_bm = 0x00002000,
401 .mmu_ctpr_mask = 0xffffffc0,
402 .mmu_cxr_mask = 0x0000ffff,
403 .mmu_sfsr_mask = 0xffffffff,
404 .mmu_trcr_mask = 0xffffffff,
405 .nwindows = 8,
406 .features = CPU_DEFAULT_FEATURES,
407 },
408 {
409 .name = "TI SuperSparc 50", /* STP1020PGA */
410 .iu_version = 0x40000000, /* SuperSPARC 3.x */
411 .fpu_version = 0 << 17,
412 .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
413 .mmu_bm = 0x00002000,
414 .mmu_ctpr_mask = 0xffffffc0,
415 .mmu_cxr_mask = 0x0000ffff,
416 .mmu_sfsr_mask = 0xffffffff,
417 .mmu_trcr_mask = 0xffffffff,
418 .nwindows = 8,
419 .features = CPU_DEFAULT_FEATURES,
420 },
421 {
422 .name = "TI SuperSparc 51",
423 .iu_version = 0x40000000, /* SuperSPARC 3.x */
424 .fpu_version = 0 << 17,
425 .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
426 .mmu_bm = 0x00002000,
427 .mmu_ctpr_mask = 0xffffffc0,
428 .mmu_cxr_mask = 0x0000ffff,
429 .mmu_sfsr_mask = 0xffffffff,
430 .mmu_trcr_mask = 0xffffffff,
431 .mxcc_version = 0x00000104,
432 .nwindows = 8,
433 .features = CPU_DEFAULT_FEATURES,
434 },
435 {
436 .name = "TI SuperSparc 60", /* STP1020APGA */
437 .iu_version = 0x40000000, /* SuperSPARC 3.x */
438 .fpu_version = 0 << 17,
439 .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
440 .mmu_bm = 0x00002000,
441 .mmu_ctpr_mask = 0xffffffc0,
442 .mmu_cxr_mask = 0x0000ffff,
443 .mmu_sfsr_mask = 0xffffffff,
444 .mmu_trcr_mask = 0xffffffff,
445 .nwindows = 8,
446 .features = CPU_DEFAULT_FEATURES,
447 },
448 {
449 .name = "TI SuperSparc 61",
450 .iu_version = 0x44000000, /* SuperSPARC 3.x */
451 .fpu_version = 0 << 17,
452 .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
453 .mmu_bm = 0x00002000,
454 .mmu_ctpr_mask = 0xffffffc0,
455 .mmu_cxr_mask = 0x0000ffff,
456 .mmu_sfsr_mask = 0xffffffff,
457 .mmu_trcr_mask = 0xffffffff,
458 .mxcc_version = 0x00000104,
459 .nwindows = 8,
460 .features = CPU_DEFAULT_FEATURES,
461 },
462 {
463 .name = "TI SuperSparc II",
464 .iu_version = 0x40000000, /* SuperSPARC II 1.x */
465 .fpu_version = 0 << 17,
466 .mmu_version = 0x08000000, /* SuperSPARC II 1.x, MXCC */
467 .mmu_bm = 0x00002000,
468 .mmu_ctpr_mask = 0xffffffc0,
469 .mmu_cxr_mask = 0x0000ffff,
470 .mmu_sfsr_mask = 0xffffffff,
471 .mmu_trcr_mask = 0xffffffff,
472 .mxcc_version = 0x00000104,
473 .nwindows = 8,
474 .features = CPU_DEFAULT_FEATURES,
475 },
476 {
477 .name = "LEON2",
478 .iu_version = 0xf2000000,
479 .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
480 .mmu_version = 0xf2000000,
481 .mmu_bm = 0x00004000,
482 .mmu_ctpr_mask = 0x007ffff0,
483 .mmu_cxr_mask = 0x0000003f,
484 .mmu_sfsr_mask = 0xffffffff,
485 .mmu_trcr_mask = 0xffffffff,
486 .nwindows = 8,
487 .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN,
488 },
489 {
490 .name = "LEON3",
491 .iu_version = 0xf3000000,
492 .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
493 .mmu_version = 0xf3000000,
494 .mmu_bm = 0x00000000,
495 .mmu_ctpr_mask = 0xfffffffc,
496 .mmu_cxr_mask = 0x000000ff,
497 .mmu_sfsr_mask = 0xffffffff,
498 .mmu_trcr_mask = 0xffffffff,
499 .nwindows = 8,
500 .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN |
501 CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL | CPU_FEATURE_POWERDOWN |
502 CPU_FEATURE_CASA,
503 },
504 #endif
505 };
506
507 static const char * const feature_name[] = {
508 "float",
509 "float128",
510 "swap",
511 "mul",
512 "div",
513 "flush",
514 "fsqrt",
515 "fmul",
516 "vis1",
517 "vis2",
518 "fsmuld",
519 "hypv",
520 "cmt",
521 "gl",
522 };
523
524 static void print_features(FILE *f, fprintf_function cpu_fprintf,
525 uint32_t features, const char *prefix)
526 {
527 unsigned int i;
528
529 for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
530 if (feature_name[i] && (features & (1 << i))) {
531 if (prefix) {
532 (*cpu_fprintf)(f, "%s", prefix);
533 }
534 (*cpu_fprintf)(f, "%s ", feature_name[i]);
535 }
536 }
537 }
538
539 static void add_flagname_to_bitmaps(const char *flagname, uint32_t *features)
540 {
541 unsigned int i;
542
543 for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
544 if (feature_name[i] && !strcmp(flagname, feature_name[i])) {
545 *features |= 1 << i;
546 return;
547 }
548 }
549 error_report("CPU feature %s not found", flagname);
550 }
551
552 static int cpu_sparc_find_by_name(sparc_def_t *cpu_def, const char *name)
553 {
554 unsigned int i;
555 const sparc_def_t *def = NULL;
556
557 for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
558 if (strcasecmp(name, sparc_defs[i].name) == 0) {
559 def = &sparc_defs[i];
560 }
561 }
562 if (!def) {
563 return -1;
564 }
565 memcpy(cpu_def, def, sizeof(*def));
566 return 0;
567 }
568
569 static void sparc_cpu_parse_features(CPUState *cs, char *features,
570 Error **errp)
571 {
572 SPARCCPU *cpu = SPARC_CPU(cs);
573 sparc_def_t *cpu_def = cpu->env.def;
574 char *featurestr;
575 uint32_t plus_features = 0;
576 uint32_t minus_features = 0;
577 uint64_t iu_version;
578 uint32_t fpu_version, mmu_version, nwindows;
579
580 featurestr = features ? strtok(features, ",") : NULL;
581 while (featurestr) {
582 char *val;
583
584 if (featurestr[0] == '+') {
585 add_flagname_to_bitmaps(featurestr + 1, &plus_features);
586 } else if (featurestr[0] == '-') {
587 add_flagname_to_bitmaps(featurestr + 1, &minus_features);
588 } else if ((val = strchr(featurestr, '='))) {
589 *val = 0; val++;
590 if (!strcmp(featurestr, "iu_version")) {
591 char *err;
592
593 iu_version = strtoll(val, &err, 0);
594 if (!*val || *err) {
595 error_setg(errp, "bad numerical value %s", val);
596 return;
597 }
598 cpu_def->iu_version = iu_version;
599 #ifdef DEBUG_FEATURES
600 fprintf(stderr, "iu_version %" PRIx64 "\n", iu_version);
601 #endif
602 } else if (!strcmp(featurestr, "fpu_version")) {
603 char *err;
604
605 fpu_version = strtol(val, &err, 0);
606 if (!*val || *err) {
607 error_setg(errp, "bad numerical value %s", val);
608 return;
609 }
610 cpu_def->fpu_version = fpu_version;
611 #ifdef DEBUG_FEATURES
612 fprintf(stderr, "fpu_version %x\n", fpu_version);
613 #endif
614 } else if (!strcmp(featurestr, "mmu_version")) {
615 char *err;
616
617 mmu_version = strtol(val, &err, 0);
618 if (!*val || *err) {
619 error_setg(errp, "bad numerical value %s", val);
620 return;
621 }
622 cpu_def->mmu_version = mmu_version;
623 #ifdef DEBUG_FEATURES
624 fprintf(stderr, "mmu_version %x\n", mmu_version);
625 #endif
626 } else if (!strcmp(featurestr, "nwindows")) {
627 char *err;
628
629 nwindows = strtol(val, &err, 0);
630 if (!*val || *err || nwindows > MAX_NWINDOWS ||
631 nwindows < MIN_NWINDOWS) {
632 error_setg(errp, "bad numerical value %s", val);
633 return;
634 }
635 cpu_def->nwindows = nwindows;
636 #ifdef DEBUG_FEATURES
637 fprintf(stderr, "nwindows %d\n", nwindows);
638 #endif
639 } else {
640 error_setg(errp, "unrecognized feature %s", featurestr);
641 return;
642 }
643 } else {
644 error_setg(errp, "feature string `%s' not in format "
645 "(+feature|-feature|feature=xyz)", featurestr);
646 return;
647 }
648 featurestr = strtok(NULL, ",");
649 }
650 cpu_def->features |= plus_features;
651 cpu_def->features &= ~minus_features;
652 #ifdef DEBUG_FEATURES
653 print_features(stderr, fprintf, cpu_def->features, NULL);
654 #endif
655 }
656
657 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
658 {
659 unsigned int i;
660
661 for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
662 (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx
663 " FPU %08x MMU %08x NWINS %d ",
664 sparc_defs[i].name,
665 sparc_defs[i].iu_version,
666 sparc_defs[i].fpu_version,
667 sparc_defs[i].mmu_version,
668 sparc_defs[i].nwindows);
669 print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
670 ~sparc_defs[i].features, "-");
671 print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
672 sparc_defs[i].features, "+");
673 (*cpu_fprintf)(f, "\n");
674 }
675 (*cpu_fprintf)(f, "Default CPU feature flags (use '-' to remove): ");
676 print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES, NULL);
677 (*cpu_fprintf)(f, "\n");
678 (*cpu_fprintf)(f, "Available CPU feature flags (use '+' to add): ");
679 print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES, NULL);
680 (*cpu_fprintf)(f, "\n");
681 (*cpu_fprintf)(f, "Numerical features (use '=' to set): iu_version "
682 "fpu_version mmu_version nwindows\n");
683 }
684
685 static void cpu_print_cc(FILE *f, fprintf_function cpu_fprintf,
686 uint32_t cc)
687 {
688 cpu_fprintf(f, "%c%c%c%c", cc & PSR_NEG ? 'N' : '-',
689 cc & PSR_ZERO ? 'Z' : '-', cc & PSR_OVF ? 'V' : '-',
690 cc & PSR_CARRY ? 'C' : '-');
691 }
692
693 #ifdef TARGET_SPARC64
694 #define REGS_PER_LINE 4
695 #else
696 #define REGS_PER_LINE 8
697 #endif
698
699 void sparc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
700 int flags)
701 {
702 SPARCCPU *cpu = SPARC_CPU(cs);
703 CPUSPARCState *env = &cpu->env;
704 int i, x;
705
706 cpu_fprintf(f, "pc: " TARGET_FMT_lx " npc: " TARGET_FMT_lx "\n", env->pc,
707 env->npc);
708
709 for (i = 0; i < 8; i++) {
710 if (i % REGS_PER_LINE == 0) {
711 cpu_fprintf(f, "%%g%d-%d:", i, i + REGS_PER_LINE - 1);
712 }
713 cpu_fprintf(f, " " TARGET_FMT_lx, env->gregs[i]);
714 if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
715 cpu_fprintf(f, "\n");
716 }
717 }
718 for (x = 0; x < 3; x++) {
719 for (i = 0; i < 8; i++) {
720 if (i % REGS_PER_LINE == 0) {
721 cpu_fprintf(f, "%%%c%d-%d: ",
722 x == 0 ? 'o' : (x == 1 ? 'l' : 'i'),
723 i, i + REGS_PER_LINE - 1);
724 }
725 cpu_fprintf(f, TARGET_FMT_lx " ", env->regwptr[i + x * 8]);
726 if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
727 cpu_fprintf(f, "\n");
728 }
729 }
730 }
731
732 for (i = 0; i < TARGET_DPREGS; i++) {
733 if ((i & 3) == 0) {
734 cpu_fprintf(f, "%%f%02d: ", i * 2);
735 }
736 cpu_fprintf(f, " %016" PRIx64, env->fpr[i].ll);
737 if ((i & 3) == 3) {
738 cpu_fprintf(f, "\n");
739 }
740 }
741 #ifdef TARGET_SPARC64
742 cpu_fprintf(f, "pstate: %08x ccr: %02x (icc: ", env->pstate,
743 (unsigned)cpu_get_ccr(env));
744 cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << PSR_CARRY_SHIFT);
745 cpu_fprintf(f, " xcc: ");
746 cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << (PSR_CARRY_SHIFT - 4));
747 cpu_fprintf(f, ") asi: %02x tl: %d pil: %x\n", env->asi, env->tl,
748 env->psrpil);
749 cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate: %d "
750 "cleanwin: %d cwp: %d\n",
751 env->cansave, env->canrestore, env->otherwin, env->wstate,
752 env->cleanwin, env->nwindows - 1 - env->cwp);
753 cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx " fprs: "
754 TARGET_FMT_lx "\n", env->fsr, env->y, env->fprs);
755 #else
756 cpu_fprintf(f, "psr: %08x (icc: ", cpu_get_psr(env));
757 cpu_print_cc(f, cpu_fprintf, cpu_get_psr(env));
758 cpu_fprintf(f, " SPE: %c%c%c) wim: %08x\n", env->psrs ? 'S' : '-',
759 env->psrps ? 'P' : '-', env->psret ? 'E' : '-',
760 env->wim);
761 cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx "\n",
762 env->fsr, env->y);
763 #endif
764 cpu_fprintf(f, "\n");
765 }
766
767 static void sparc_cpu_set_pc(CPUState *cs, vaddr value)
768 {
769 SPARCCPU *cpu = SPARC_CPU(cs);
770
771 cpu->env.pc = value;
772 cpu->env.npc = value + 4;
773 }
774
775 static void sparc_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
776 {
777 SPARCCPU *cpu = SPARC_CPU(cs);
778
779 cpu->env.pc = tb->pc;
780 cpu->env.npc = tb->cs_base;
781 }
782
783 static bool sparc_cpu_has_work(CPUState *cs)
784 {
785 SPARCCPU *cpu = SPARC_CPU(cs);
786 CPUSPARCState *env = &cpu->env;
787
788 return (cs->interrupt_request & CPU_INTERRUPT_HARD) &&
789 cpu_interrupts_enabled(env);
790 }
791
792 static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
793 {
794 SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev);
795 #if defined(CONFIG_USER_ONLY)
796 SPARCCPU *cpu = SPARC_CPU(dev);
797 CPUSPARCState *env = &cpu->env;
798
799 if ((env->def->features & CPU_FEATURE_FLOAT)) {
800 env->def->features |= CPU_FEATURE_FLOAT128;
801 }
802 #endif
803
804 qemu_init_vcpu(CPU(dev));
805
806 scc->parent_realize(dev, errp);
807 }
808
809 static void sparc_cpu_initfn(Object *obj)
810 {
811 CPUState *cs = CPU(obj);
812 SPARCCPU *cpu = SPARC_CPU(obj);
813 CPUSPARCState *env = &cpu->env;
814
815 cs->env_ptr = env;
816 cpu_exec_init(cs, &error_abort);
817
818 if (tcg_enabled()) {
819 gen_intermediate_code_init(env);
820 }
821 }
822
823 static void sparc_cpu_uninitfn(Object *obj)
824 {
825 SPARCCPU *cpu = SPARC_CPU(obj);
826 CPUSPARCState *env = &cpu->env;
827
828 g_free(env->def);
829 }
830
831 static void sparc_cpu_class_init(ObjectClass *oc, void *data)
832 {
833 SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
834 CPUClass *cc = CPU_CLASS(oc);
835 DeviceClass *dc = DEVICE_CLASS(oc);
836
837 scc->parent_realize = dc->realize;
838 dc->realize = sparc_cpu_realizefn;
839
840 scc->parent_reset = cc->reset;
841 cc->reset = sparc_cpu_reset;
842
843 cc->parse_features = sparc_cpu_parse_features;
844 cc->has_work = sparc_cpu_has_work;
845 cc->do_interrupt = sparc_cpu_do_interrupt;
846 cc->cpu_exec_interrupt = sparc_cpu_exec_interrupt;
847 cc->dump_state = sparc_cpu_dump_state;
848 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
849 cc->memory_rw_debug = sparc_cpu_memory_rw_debug;
850 #endif
851 cc->set_pc = sparc_cpu_set_pc;
852 cc->synchronize_from_tb = sparc_cpu_synchronize_from_tb;
853 cc->gdb_read_register = sparc_cpu_gdb_read_register;
854 cc->gdb_write_register = sparc_cpu_gdb_write_register;
855 #ifdef CONFIG_USER_ONLY
856 cc->handle_mmu_fault = sparc_cpu_handle_mmu_fault;
857 #else
858 cc->do_unassigned_access = sparc_cpu_unassigned_access;
859 cc->do_unaligned_access = sparc_cpu_do_unaligned_access;
860 cc->get_phys_page_debug = sparc_cpu_get_phys_page_debug;
861 cc->vmsd = &vmstate_sparc_cpu;
862 #endif
863 cc->disas_set_info = cpu_sparc_disas_set_info;
864
865 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
866 cc->gdb_num_core_regs = 86;
867 #else
868 cc->gdb_num_core_regs = 72;
869 #endif
870
871 /*
872 * Reason: sparc_cpu_initfn() calls cpu_exec_init(), which saves
873 * the object in cpus -> dangling pointer after final
874 * object_unref().
875 */
876 dc->cannot_destroy_with_object_finalize_yet = true;
877 }
878
879 static const TypeInfo sparc_cpu_type_info = {
880 .name = TYPE_SPARC_CPU,
881 .parent = TYPE_CPU,
882 .instance_size = sizeof(SPARCCPU),
883 .instance_init = sparc_cpu_initfn,
884 .instance_finalize = sparc_cpu_uninitfn,
885 .abstract = false,
886 .class_size = sizeof(SPARCCPUClass),
887 .class_init = sparc_cpu_class_init,
888 };
889
890 static void sparc_cpu_register_types(void)
891 {
892 type_register_static(&sparc_cpu_type_info);
893 }
894
895 type_init(sparc_cpu_register_types)