hw/arm: xlnx-zynqmp: Connect a Xilinx CSU DMA module for QSPI
[qemu/ar7.git] / target / m68k / cpu.c
blob37d2ed9dc79c4ad8cb2898bf0e6f82f27f7334a5
1 /*
2 * QEMU Motorola 68k CPU
4 * Copyright (c) 2012 SUSE LINUX Products GmbH
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.
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
18 * <http://www.gnu.org/licenses/lgpl-2.1.html>
21 #include "qemu/osdep.h"
22 #include "qapi/error.h"
23 #include "cpu.h"
24 #include "migration/vmstate.h"
25 #include "fpu/softfloat.h"
27 static void m68k_cpu_set_pc(CPUState *cs, vaddr value)
29 M68kCPU *cpu = M68K_CPU(cs);
31 cpu->env.pc = value;
34 static bool m68k_cpu_has_work(CPUState *cs)
36 return cs->interrupt_request & CPU_INTERRUPT_HARD;
39 static void m68k_set_feature(CPUM68KState *env, int feature)
41 env->features |= (1u << feature);
44 static void m68k_unset_feature(CPUM68KState *env, int feature)
46 env->features &= (-1u - (1u << feature));
49 static void m68k_cpu_reset(DeviceState *dev)
51 CPUState *s = CPU(dev);
52 M68kCPU *cpu = M68K_CPU(s);
53 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu);
54 CPUM68KState *env = &cpu->env;
55 floatx80 nan = floatx80_default_nan(NULL);
56 int i;
58 mcc->parent_reset(dev);
60 memset(env, 0, offsetof(CPUM68KState, end_reset_fields));
61 #ifdef CONFIG_SOFTMMU
62 cpu_m68k_set_sr(env, SR_S | SR_I);
63 #else
64 cpu_m68k_set_sr(env, 0);
65 #endif
66 for (i = 0; i < 8; i++) {
67 env->fregs[i].d = nan;
69 cpu_m68k_set_fpcr(env, 0);
70 env->fpsr = 0;
72 /* TODO: We should set PC from the interrupt vector. */
73 env->pc = 0;
76 static void m68k_cpu_disas_set_info(CPUState *s, disassemble_info *info)
78 M68kCPU *cpu = M68K_CPU(s);
79 CPUM68KState *env = &cpu->env;
80 info->print_insn = print_insn_m68k;
81 if (m68k_feature(env, M68K_FEATURE_M68000)) {
82 info->mach = bfd_mach_m68040;
86 /* CPU models */
88 static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model)
90 ObjectClass *oc;
91 char *typename;
93 typename = g_strdup_printf(M68K_CPU_TYPE_NAME("%s"), cpu_model);
94 oc = object_class_by_name(typename);
95 g_free(typename);
96 if (oc != NULL && (object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL ||
97 object_class_is_abstract(oc))) {
98 return NULL;
100 return oc;
103 static void m5206_cpu_initfn(Object *obj)
105 M68kCPU *cpu = M68K_CPU(obj);
106 CPUM68KState *env = &cpu->env;
108 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
111 /* Base feature set, including isns. for m68k family */
112 static void m68000_cpu_initfn(Object *obj)
114 M68kCPU *cpu = M68K_CPU(obj);
115 CPUM68KState *env = &cpu->env;
117 m68k_set_feature(env, M68K_FEATURE_M68000);
118 m68k_set_feature(env, M68K_FEATURE_USP);
119 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
120 m68k_set_feature(env, M68K_FEATURE_MOVEP);
124 * Adds BKPT, MOVE-from-SR *now priv instr, and MOVEC, MOVES, RTD
126 static void m68010_cpu_initfn(Object *obj)
128 M68kCPU *cpu = M68K_CPU(obj);
129 CPUM68KState *env = &cpu->env;
131 m68000_cpu_initfn(obj);
132 m68k_set_feature(env, M68K_FEATURE_M68010);
133 m68k_set_feature(env, M68K_FEATURE_RTD);
134 m68k_set_feature(env, M68K_FEATURE_BKPT);
135 m68k_set_feature(env, M68K_FEATURE_MOVEC);
139 * Adds BFCHG, BFCLR, BFEXTS, BFEXTU, BFFFO, BFINS, BFSET, BFTST, CAS, CAS2,
140 * CHK2, CMP2, DIVSL, DIVUL, EXTB, PACK, TRAPcc, UNPK.
142 * 68020/30 only:
143 * CALLM, cpBcc, cpDBcc, cpGEN, cpRESTORE, cpSAVE, cpScc, cpTRAPcc
145 static void m68020_cpu_initfn(Object *obj)
147 M68kCPU *cpu = M68K_CPU(obj);
148 CPUM68KState *env = &cpu->env;
150 m68010_cpu_initfn(obj);
151 m68k_unset_feature(env, M68K_FEATURE_M68010);
152 m68k_set_feature(env, M68K_FEATURE_M68020);
153 m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV);
154 m68k_set_feature(env, M68K_FEATURE_BRAL);
155 m68k_set_feature(env, M68K_FEATURE_BCCL);
156 m68k_set_feature(env, M68K_FEATURE_BITFIELD);
157 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
158 m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
159 m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
160 m68k_set_feature(env, M68K_FEATURE_FPU);
161 m68k_set_feature(env, M68K_FEATURE_CAS);
162 m68k_set_feature(env, M68K_FEATURE_CHK2);
163 m68k_set_feature(env, M68K_FEATURE_MSP);
167 * Adds: PFLUSH (*5)
168 * 68030 Only: PFLUSHA (*5), PLOAD (*5), PMOVE
169 * 68030/40 Only: PTEST
171 * NOTES:
172 * 5. Not valid on MC68EC030
174 static void m68030_cpu_initfn(Object *obj)
176 M68kCPU *cpu = M68K_CPU(obj);
177 CPUM68KState *env = &cpu->env;
179 m68020_cpu_initfn(obj);
180 m68k_unset_feature(env, M68K_FEATURE_M68020);
181 m68k_set_feature(env, M68K_FEATURE_M68030);
185 * Adds: CINV, CPUSH
186 * Adds all with Note *2: FABS, FSABS, FDABS, FADD, FSADD, FDADD, FBcc, FCMP,
187 * FDBcc, FDIV, FSDIV, FDDIV, FMOVE, FSMOVE, FDMOVE,
188 * FMOVEM, FMUL, FSMUL, FDMUL, FNEG, FSNEG, FDNEG, FNOP,
189 * FRESTORE, FSAVE, FScc, FSQRT, FSSQRT, FDSQRT, FSUB,
190 * FSSUB, FDSUB, FTRAPcc, FTST
192 * Adds with Notes *2, and *3: FACOS, FASIN, FATAN, FATANH, FCOS, FCOSH, FETOX,
193 * FETOXM, FGETEXP, FGETMAN, FINT, FINTRZ, FLOG10,
194 * FLOG2, FLOGN, FLOGNP1, FMOD, FMOVECR, FREM,
195 * FSCALE, FSGLDIV, FSGLMUL, FSIN, FSINCOS, FSINH,
196 * FTAN, FTANH, FTENTOX, FTWOTOX
197 * NOTES:
198 * 2. Not applicable to the MC68EC040, MC68LC040, MC68EC060, and MC68LC060.
199 * 3. These are software-supported instructions on the MC68040 and MC68060.
201 static void m68040_cpu_initfn(Object *obj)
203 M68kCPU *cpu = M68K_CPU(obj);
204 CPUM68KState *env = &cpu->env;
206 m68030_cpu_initfn(obj);
207 m68k_unset_feature(env, M68K_FEATURE_M68030);
208 m68k_set_feature(env, M68K_FEATURE_M68040);
212 * Adds: PLPA
213 * Adds all with Note *2: CAS, CAS2, MULS, MULU, CHK2, CMP2, DIVS, DIVU
214 * All Fxxxx instructions are as per m68040 with exception to; FMOVEM NOTE3
216 * Does NOT implement MOVEP
218 * NOTES:
219 * 2. Not applicable to the MC68EC040, MC68LC040, MC68EC060, and MC68LC060.
220 * 3. These are software-supported instructions on the MC68040 and MC68060.
222 static void m68060_cpu_initfn(Object *obj)
224 M68kCPU *cpu = M68K_CPU(obj);
225 CPUM68KState *env = &cpu->env;
227 m68040_cpu_initfn(obj);
228 m68k_unset_feature(env, M68K_FEATURE_M68040);
229 m68k_set_feature(env, M68K_FEATURE_M68060);
230 m68k_unset_feature(env, M68K_FEATURE_MOVEP);
232 /* Implemented as a software feature */
233 m68k_unset_feature(env, M68K_FEATURE_QUAD_MULDIV);
236 static void m5208_cpu_initfn(Object *obj)
238 M68kCPU *cpu = M68K_CPU(obj);
239 CPUM68KState *env = &cpu->env;
241 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
242 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
243 m68k_set_feature(env, M68K_FEATURE_BRAL);
244 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
245 m68k_set_feature(env, M68K_FEATURE_USP);
248 static void cfv4e_cpu_initfn(Object *obj)
250 M68kCPU *cpu = M68K_CPU(obj);
251 CPUM68KState *env = &cpu->env;
253 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
254 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
255 m68k_set_feature(env, M68K_FEATURE_BRAL);
256 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
257 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
258 m68k_set_feature(env, M68K_FEATURE_USP);
261 static void any_cpu_initfn(Object *obj)
263 M68kCPU *cpu = M68K_CPU(obj);
264 CPUM68KState *env = &cpu->env;
266 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
267 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
268 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
269 m68k_set_feature(env, M68K_FEATURE_BRAL);
270 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
272 * MAC and EMAC are mututally exclusive, so pick EMAC.
273 * It's mostly backwards compatible.
275 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
276 m68k_set_feature(env, M68K_FEATURE_CF_EMAC_B);
277 m68k_set_feature(env, M68K_FEATURE_USP);
278 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
279 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
282 static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
284 CPUState *cs = CPU(dev);
285 M68kCPU *cpu = M68K_CPU(dev);
286 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(dev);
287 Error *local_err = NULL;
289 register_m68k_insns(&cpu->env);
291 cpu_exec_realizefn(cs, &local_err);
292 if (local_err != NULL) {
293 error_propagate(errp, local_err);
294 return;
297 m68k_cpu_init_gdb(cpu);
299 cpu_reset(cs);
300 qemu_init_vcpu(cs);
302 mcc->parent_realize(dev, errp);
305 static void m68k_cpu_initfn(Object *obj)
307 M68kCPU *cpu = M68K_CPU(obj);
309 cpu_set_cpustate_pointers(cpu);
312 #if defined(CONFIG_SOFTMMU)
313 static bool fpu_needed(void *opaque)
315 M68kCPU *s = opaque;
317 return m68k_feature(&s->env, M68K_FEATURE_CF_FPU) ||
318 m68k_feature(&s->env, M68K_FEATURE_FPU);
321 typedef struct m68k_FPReg_tmp {
322 FPReg *parent;
323 uint64_t tmp_mant;
324 uint16_t tmp_exp;
325 } m68k_FPReg_tmp;
327 static void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f)
329 CPU_LDoubleU temp;
331 temp.d = f;
332 *pmant = temp.l.lower;
333 *pexp = temp.l.upper;
336 static floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper)
338 CPU_LDoubleU temp;
340 temp.l.upper = upper;
341 temp.l.lower = mant;
342 return temp.d;
345 static int freg_pre_save(void *opaque)
347 m68k_FPReg_tmp *tmp = opaque;
349 cpu_get_fp80(&tmp->tmp_mant, &tmp->tmp_exp, tmp->parent->d);
351 return 0;
354 static int freg_post_load(void *opaque, int version)
356 m68k_FPReg_tmp *tmp = opaque;
358 tmp->parent->d = cpu_set_fp80(tmp->tmp_mant, tmp->tmp_exp);
360 return 0;
363 static const VMStateDescription vmstate_freg_tmp = {
364 .name = "freg_tmp",
365 .post_load = freg_post_load,
366 .pre_save = freg_pre_save,
367 .fields = (VMStateField[]) {
368 VMSTATE_UINT64(tmp_mant, m68k_FPReg_tmp),
369 VMSTATE_UINT16(tmp_exp, m68k_FPReg_tmp),
370 VMSTATE_END_OF_LIST()
374 static const VMStateDescription vmstate_freg = {
375 .name = "freg",
376 .fields = (VMStateField[]) {
377 VMSTATE_WITH_TMP(FPReg, m68k_FPReg_tmp, vmstate_freg_tmp),
378 VMSTATE_END_OF_LIST()
382 static int fpu_post_load(void *opaque, int version)
384 M68kCPU *s = opaque;
386 cpu_m68k_restore_fp_status(&s->env);
388 return 0;
391 const VMStateDescription vmmstate_fpu = {
392 .name = "cpu/fpu",
393 .version_id = 1,
394 .minimum_version_id = 1,
395 .needed = fpu_needed,
396 .post_load = fpu_post_load,
397 .fields = (VMStateField[]) {
398 VMSTATE_UINT32(env.fpcr, M68kCPU),
399 VMSTATE_UINT32(env.fpsr, M68kCPU),
400 VMSTATE_STRUCT_ARRAY(env.fregs, M68kCPU, 8, 0, vmstate_freg, FPReg),
401 VMSTATE_STRUCT(env.fp_result, M68kCPU, 0, vmstate_freg, FPReg),
402 VMSTATE_END_OF_LIST()
406 static bool cf_spregs_needed(void *opaque)
408 M68kCPU *s = opaque;
410 return m68k_feature(&s->env, M68K_FEATURE_CF_ISA_A);
413 const VMStateDescription vmstate_cf_spregs = {
414 .name = "cpu/cf_spregs",
415 .version_id = 1,
416 .minimum_version_id = 1,
417 .needed = cf_spregs_needed,
418 .fields = (VMStateField[]) {
419 VMSTATE_UINT64_ARRAY(env.macc, M68kCPU, 4),
420 VMSTATE_UINT32(env.macsr, M68kCPU),
421 VMSTATE_UINT32(env.mac_mask, M68kCPU),
422 VMSTATE_UINT32(env.rambar0, M68kCPU),
423 VMSTATE_UINT32(env.mbar, M68kCPU),
424 VMSTATE_END_OF_LIST()
428 static bool cpu_68040_mmu_needed(void *opaque)
430 M68kCPU *s = opaque;
432 return m68k_feature(&s->env, M68K_FEATURE_M68040);
435 const VMStateDescription vmstate_68040_mmu = {
436 .name = "cpu/68040_mmu",
437 .version_id = 1,
438 .minimum_version_id = 1,
439 .needed = cpu_68040_mmu_needed,
440 .fields = (VMStateField[]) {
441 VMSTATE_UINT32(env.mmu.ar, M68kCPU),
442 VMSTATE_UINT32(env.mmu.ssw, M68kCPU),
443 VMSTATE_UINT16(env.mmu.tcr, M68kCPU),
444 VMSTATE_UINT32(env.mmu.urp, M68kCPU),
445 VMSTATE_UINT32(env.mmu.srp, M68kCPU),
446 VMSTATE_BOOL(env.mmu.fault, M68kCPU),
447 VMSTATE_UINT32_ARRAY(env.mmu.ttr, M68kCPU, 4),
448 VMSTATE_UINT32(env.mmu.mmusr, M68kCPU),
449 VMSTATE_END_OF_LIST()
453 static bool cpu_68040_spregs_needed(void *opaque)
455 M68kCPU *s = opaque;
457 return m68k_feature(&s->env, M68K_FEATURE_M68040);
460 const VMStateDescription vmstate_68040_spregs = {
461 .name = "cpu/68040_spregs",
462 .version_id = 1,
463 .minimum_version_id = 1,
464 .needed = cpu_68040_spregs_needed,
465 .fields = (VMStateField[]) {
466 VMSTATE_UINT32(env.vbr, M68kCPU),
467 VMSTATE_UINT32(env.cacr, M68kCPU),
468 VMSTATE_UINT32(env.sfc, M68kCPU),
469 VMSTATE_UINT32(env.dfc, M68kCPU),
470 VMSTATE_END_OF_LIST()
474 static const VMStateDescription vmstate_m68k_cpu = {
475 .name = "cpu",
476 .version_id = 1,
477 .minimum_version_id = 1,
478 .fields = (VMStateField[]) {
479 VMSTATE_UINT32_ARRAY(env.dregs, M68kCPU, 8),
480 VMSTATE_UINT32_ARRAY(env.aregs, M68kCPU, 8),
481 VMSTATE_UINT32(env.pc, M68kCPU),
482 VMSTATE_UINT32(env.sr, M68kCPU),
483 VMSTATE_INT32(env.current_sp, M68kCPU),
484 VMSTATE_UINT32_ARRAY(env.sp, M68kCPU, 3),
485 VMSTATE_UINT32(env.cc_op, M68kCPU),
486 VMSTATE_UINT32(env.cc_x, M68kCPU),
487 VMSTATE_UINT32(env.cc_n, M68kCPU),
488 VMSTATE_UINT32(env.cc_v, M68kCPU),
489 VMSTATE_UINT32(env.cc_c, M68kCPU),
490 VMSTATE_UINT32(env.cc_z, M68kCPU),
491 VMSTATE_INT32(env.pending_vector, M68kCPU),
492 VMSTATE_INT32(env.pending_level, M68kCPU),
493 VMSTATE_END_OF_LIST()
495 .subsections = (const VMStateDescription * []) {
496 &vmmstate_fpu,
497 &vmstate_cf_spregs,
498 &vmstate_68040_mmu,
499 &vmstate_68040_spregs,
500 NULL
503 #endif
505 #include "hw/core/tcg-cpu-ops.h"
507 static struct TCGCPUOps m68k_tcg_ops = {
508 .initialize = m68k_tcg_init,
509 .cpu_exec_interrupt = m68k_cpu_exec_interrupt,
510 .tlb_fill = m68k_cpu_tlb_fill,
512 #ifndef CONFIG_USER_ONLY
513 .do_interrupt = m68k_cpu_do_interrupt,
514 .do_transaction_failed = m68k_cpu_transaction_failed,
515 #endif /* !CONFIG_USER_ONLY */
518 static void m68k_cpu_class_init(ObjectClass *c, void *data)
520 M68kCPUClass *mcc = M68K_CPU_CLASS(c);
521 CPUClass *cc = CPU_CLASS(c);
522 DeviceClass *dc = DEVICE_CLASS(c);
524 device_class_set_parent_realize(dc, m68k_cpu_realizefn,
525 &mcc->parent_realize);
526 device_class_set_parent_reset(dc, m68k_cpu_reset, &mcc->parent_reset);
528 cc->class_by_name = m68k_cpu_class_by_name;
529 cc->has_work = m68k_cpu_has_work;
530 cc->dump_state = m68k_cpu_dump_state;
531 cc->set_pc = m68k_cpu_set_pc;
532 cc->gdb_read_register = m68k_cpu_gdb_read_register;
533 cc->gdb_write_register = m68k_cpu_gdb_write_register;
534 #if defined(CONFIG_SOFTMMU)
535 cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
536 dc->vmsd = &vmstate_m68k_cpu;
537 #endif
538 cc->disas_set_info = m68k_cpu_disas_set_info;
540 cc->gdb_num_core_regs = 18;
541 cc->tcg_ops = &m68k_tcg_ops;
544 static void m68k_cpu_class_init_cf_core(ObjectClass *c, void *data)
546 CPUClass *cc = CPU_CLASS(c);
548 cc->gdb_core_xml_file = "cf-core.xml";
551 #define DEFINE_M68K_CPU_TYPE_CF(model) \
553 .name = M68K_CPU_TYPE_NAME(#model), \
554 .instance_init = model##_cpu_initfn, \
555 .parent = TYPE_M68K_CPU, \
556 .class_init = m68k_cpu_class_init_cf_core \
559 static void m68k_cpu_class_init_m68k_core(ObjectClass *c, void *data)
561 CPUClass *cc = CPU_CLASS(c);
563 cc->gdb_core_xml_file = "m68k-core.xml";
566 #define DEFINE_M68K_CPU_TYPE_M68K(model) \
568 .name = M68K_CPU_TYPE_NAME(#model), \
569 .instance_init = model##_cpu_initfn, \
570 .parent = TYPE_M68K_CPU, \
571 .class_init = m68k_cpu_class_init_m68k_core \
574 static const TypeInfo m68k_cpus_type_infos[] = {
575 { /* base class should be registered first */
576 .name = TYPE_M68K_CPU,
577 .parent = TYPE_CPU,
578 .instance_size = sizeof(M68kCPU),
579 .instance_init = m68k_cpu_initfn,
580 .abstract = true,
581 .class_size = sizeof(M68kCPUClass),
582 .class_init = m68k_cpu_class_init,
584 DEFINE_M68K_CPU_TYPE_M68K(m68000),
585 DEFINE_M68K_CPU_TYPE_M68K(m68010),
586 DEFINE_M68K_CPU_TYPE_M68K(m68020),
587 DEFINE_M68K_CPU_TYPE_M68K(m68030),
588 DEFINE_M68K_CPU_TYPE_M68K(m68040),
589 DEFINE_M68K_CPU_TYPE_M68K(m68060),
590 DEFINE_M68K_CPU_TYPE_CF(m5206),
591 DEFINE_M68K_CPU_TYPE_CF(m5208),
592 DEFINE_M68K_CPU_TYPE_CF(cfv4e),
593 DEFINE_M68K_CPU_TYPE_CF(any),
596 DEFINE_TYPES(m68k_cpus_type_infos)