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