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22#include "qemu/osdep.h"
23#include "qapi/error.h"
24#include "cpu.h"
25#include "qemu-common.h"
26#include "migration/vmstate.h"
27
28
29static void alpha_cpu_set_pc(CPUState *cs, vaddr value)
30{
31 AlphaCPU *cpu = ALPHA_CPU(cs);
32
33 cpu->env.pc = value;
34}
35
36static bool alpha_cpu_has_work(CPUState *cs)
37{
38
39
40
41
42
43
44
45 return cs->interrupt_request & (CPU_INTERRUPT_HARD
46 | CPU_INTERRUPT_TIMER
47 | CPU_INTERRUPT_SMP
48 | CPU_INTERRUPT_MCHK);
49}
50
51static void alpha_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
52{
53 info->mach = bfd_mach_alpha_ev6;
54 info->print_insn = print_insn_alpha;
55}
56
57static void alpha_cpu_realizefn(DeviceState *dev, Error **errp)
58{
59 CPUState *cs = CPU(dev);
60 AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev);
61
62 qemu_init_vcpu(cs);
63
64 acc->parent_realize(dev, errp);
65}
66
67
68static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
69{
70 ObjectClass *class_a = (ObjectClass *)a;
71 ObjectClass *class_b = (ObjectClass *)b;
72 const char *name_a, *name_b;
73
74 name_a = object_class_get_name(class_a);
75 name_b = object_class_get_name(class_b);
76 return strcmp(name_a, name_b);
77}
78
79static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
80{
81 ObjectClass *oc = data;
82 CPUListState *s = user_data;
83
84 (*s->cpu_fprintf)(s->file, " %s\n",
85 object_class_get_name(oc));
86}
87
88void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
89{
90 CPUListState s = {
91 .file = f,
92 .cpu_fprintf = cpu_fprintf,
93 };
94 GSList *list;
95
96 list = object_class_get_list(TYPE_ALPHA_CPU, false);
97 list = g_slist_sort(list, alpha_cpu_list_compare);
98 (*cpu_fprintf)(f, "Available CPUs:\n");
99 g_slist_foreach(list, alpha_cpu_list_entry, &s);
100 g_slist_free(list);
101}
102
103
104
105#define TYPE(model) model "-" TYPE_ALPHA_CPU
106
107typedef struct AlphaCPUAlias {
108 const char *alias;
109 const char *typename;
110} AlphaCPUAlias;
111
112static const AlphaCPUAlias alpha_cpu_aliases[] = {
113 { "21064", TYPE("ev4") },
114 { "21164", TYPE("ev5") },
115 { "21164a", TYPE("ev56") },
116 { "21164pc", TYPE("pca56") },
117 { "21264", TYPE("ev6") },
118 { "21264a", TYPE("ev67") },
119};
120
121static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
122{
123 ObjectClass *oc = NULL;
124 char *typename;
125 int i;
126
127 if (cpu_model == NULL) {
128 return NULL;
129 }
130
131 oc = object_class_by_name(cpu_model);
132 if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
133 !object_class_is_abstract(oc)) {
134 return oc;
135 }
136
137 for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
138 if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
139 oc = object_class_by_name(alpha_cpu_aliases[i].typename);
140 assert(oc != NULL && !object_class_is_abstract(oc));
141 return oc;
142 }
143 }
144
145 typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model);
146 oc = object_class_by_name(typename);
147 g_free(typename);
148 if (oc != NULL && object_class_is_abstract(oc)) {
149 oc = NULL;
150 }
151 return oc;
152}
153
154AlphaCPU *cpu_alpha_init(const char *cpu_model)
155{
156 AlphaCPU *cpu;
157 ObjectClass *cpu_class;
158
159 cpu_class = alpha_cpu_class_by_name(cpu_model);
160 if (cpu_class == NULL) {
161
162 cpu_class = object_class_by_name(TYPE("ev67"));
163 }
164 cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class)));
165
166 object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
167
168 return cpu;
169}
170
171static void ev4_cpu_initfn(Object *obj)
172{
173 AlphaCPU *cpu = ALPHA_CPU(obj);
174 CPUAlphaState *env = &cpu->env;
175
176 env->implver = IMPLVER_2106x;
177}
178
179static const TypeInfo ev4_cpu_type_info = {
180 .name = TYPE("ev4"),
181 .parent = TYPE_ALPHA_CPU,
182 .instance_init = ev4_cpu_initfn,
183};
184
185static void ev5_cpu_initfn(Object *obj)
186{
187 AlphaCPU *cpu = ALPHA_CPU(obj);
188 CPUAlphaState *env = &cpu->env;
189
190 env->implver = IMPLVER_21164;
191}
192
193static const TypeInfo ev5_cpu_type_info = {
194 .name = TYPE("ev5"),
195 .parent = TYPE_ALPHA_CPU,
196 .instance_init = ev5_cpu_initfn,
197};
198
199static void ev56_cpu_initfn(Object *obj)
200{
201 AlphaCPU *cpu = ALPHA_CPU(obj);
202 CPUAlphaState *env = &cpu->env;
203
204 env->amask |= AMASK_BWX;
205}
206
207static const TypeInfo ev56_cpu_type_info = {
208 .name = TYPE("ev56"),
209 .parent = TYPE("ev5"),
210 .instance_init = ev56_cpu_initfn,
211};
212
213static void pca56_cpu_initfn(Object *obj)
214{
215 AlphaCPU *cpu = ALPHA_CPU(obj);
216 CPUAlphaState *env = &cpu->env;
217
218 env->amask |= AMASK_MVI;
219}
220
221static const TypeInfo pca56_cpu_type_info = {
222 .name = TYPE("pca56"),
223 .parent = TYPE("ev56"),
224 .instance_init = pca56_cpu_initfn,
225};
226
227static void ev6_cpu_initfn(Object *obj)
228{
229 AlphaCPU *cpu = ALPHA_CPU(obj);
230 CPUAlphaState *env = &cpu->env;
231
232 env->implver = IMPLVER_21264;
233 env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
234}
235
236static const TypeInfo ev6_cpu_type_info = {
237 .name = TYPE("ev6"),
238 .parent = TYPE_ALPHA_CPU,
239 .instance_init = ev6_cpu_initfn,
240};
241
242static void ev67_cpu_initfn(Object *obj)
243{
244 AlphaCPU *cpu = ALPHA_CPU(obj);
245 CPUAlphaState *env = &cpu->env;
246
247 env->amask |= AMASK_CIX | AMASK_PREFETCH;
248}
249
250static const TypeInfo ev67_cpu_type_info = {
251 .name = TYPE("ev67"),
252 .parent = TYPE("ev6"),
253 .instance_init = ev67_cpu_initfn,
254};
255
256static const TypeInfo ev68_cpu_type_info = {
257 .name = TYPE("ev68"),
258 .parent = TYPE("ev67"),
259};
260
261static void alpha_cpu_initfn(Object *obj)
262{
263 CPUState *cs = CPU(obj);
264 AlphaCPU *cpu = ALPHA_CPU(obj);
265 CPUAlphaState *env = &cpu->env;
266
267 cs->env_ptr = env;
268 cpu_exec_init(cs, &error_abort);
269 tlb_flush(cs, 1);
270
271 alpha_translate_init();
272
273#if defined(CONFIG_USER_ONLY)
274 env->ps = PS_USER_MODE;
275 cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
276 | FPCR_UNFD | FPCR_INED | FPCR_DNOD
277 | FPCR_DYN_NORMAL));
278#endif
279 env->lock_addr = -1;
280 env->fen = 1;
281}
282
283static void alpha_cpu_class_init(ObjectClass *oc, void *data)
284{
285 DeviceClass *dc = DEVICE_CLASS(oc);
286 CPUClass *cc = CPU_CLASS(oc);
287 AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc);
288
289 acc->parent_realize = dc->realize;
290 dc->realize = alpha_cpu_realizefn;
291
292 cc->class_by_name = alpha_cpu_class_by_name;
293 cc->has_work = alpha_cpu_has_work;
294 cc->do_interrupt = alpha_cpu_do_interrupt;
295 cc->cpu_exec_interrupt = alpha_cpu_exec_interrupt;
296 cc->dump_state = alpha_cpu_dump_state;
297 cc->set_pc = alpha_cpu_set_pc;
298 cc->gdb_read_register = alpha_cpu_gdb_read_register;
299 cc->gdb_write_register = alpha_cpu_gdb_write_register;
300#ifdef CONFIG_USER_ONLY
301 cc->handle_mmu_fault = alpha_cpu_handle_mmu_fault;
302#else
303 cc->do_unassigned_access = alpha_cpu_unassigned_access;
304 cc->do_unaligned_access = alpha_cpu_do_unaligned_access;
305 cc->get_phys_page_debug = alpha_cpu_get_phys_page_debug;
306 dc->vmsd = &vmstate_alpha_cpu;
307#endif
308 cc->disas_set_info = alpha_cpu_disas_set_info;
309
310 cc->gdb_num_core_regs = 67;
311
312
313
314
315
316
317 dc->cannot_destroy_with_object_finalize_yet = true;
318}
319
320static const TypeInfo alpha_cpu_type_info = {
321 .name = TYPE_ALPHA_CPU,
322 .parent = TYPE_CPU,
323 .instance_size = sizeof(AlphaCPU),
324 .instance_init = alpha_cpu_initfn,
325 .abstract = true,
326 .class_size = sizeof(AlphaCPUClass),
327 .class_init = alpha_cpu_class_init,
328};
329
330static void alpha_cpu_register_types(void)
331{
332 type_register_static(&alpha_cpu_type_info);
333 type_register_static(&ev4_cpu_type_info);
334 type_register_static(&ev5_cpu_type_info);
335 type_register_static(&ev56_cpu_type_info);
336 type_register_static(&pca56_cpu_type_info);
337 type_register_static(&ev6_cpu_type_info);
338 type_register_static(&ev67_cpu_type_info);
339 type_register_static(&ev68_cpu_type_info);
340}
341
342type_init(alpha_cpu_register_types)
343
