target-i386: Use mulu2 and muls2
[qemu/pbrook.git] / target-alpha / cpu.c
blobcec998992522c1f3efaa220b9d3d1e7a3c6958c8
1 /*
2 * QEMU Alpha CPU
4 * Copyright (c) 2007 Jocelyn Mayer
5 * Copyright (c) 2012 SUSE LINUX Products GmbH
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see
19 * <http://www.gnu.org/licenses/lgpl-2.1.html>
22 #include "cpu.h"
23 #include "qemu-common.h"
26 static void alpha_cpu_realizefn(DeviceState *dev, Error **errp)
28 AlphaCPU *cpu = ALPHA_CPU(dev);
29 AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev);
31 qemu_init_vcpu(&cpu->env);
33 acc->parent_realize(dev, errp);
36 /* Sort alphabetically by type name. */
37 static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
39 ObjectClass *class_a = (ObjectClass *)a;
40 ObjectClass *class_b = (ObjectClass *)b;
41 const char *name_a, *name_b;
43 name_a = object_class_get_name(class_a);
44 name_b = object_class_get_name(class_b);
45 return strcmp(name_a, name_b);
48 static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
50 ObjectClass *oc = data;
51 CPUListState *s = user_data;
53 (*s->cpu_fprintf)(s->file, " %s\n",
54 object_class_get_name(oc));
57 void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
59 CPUListState s = {
60 .file = f,
61 .cpu_fprintf = cpu_fprintf,
63 GSList *list;
65 list = object_class_get_list(TYPE_ALPHA_CPU, false);
66 list = g_slist_sort(list, alpha_cpu_list_compare);
67 (*cpu_fprintf)(f, "Available CPUs:\n");
68 g_slist_foreach(list, alpha_cpu_list_entry, &s);
69 g_slist_free(list);
72 /* Models */
74 #define TYPE(model) model "-" TYPE_ALPHA_CPU
76 typedef struct AlphaCPUAlias {
77 const char *alias;
78 const char *typename;
79 } AlphaCPUAlias;
81 static const AlphaCPUAlias alpha_cpu_aliases[] = {
82 { "21064", TYPE("ev4") },
83 { "21164", TYPE("ev5") },
84 { "21164a", TYPE("ev56") },
85 { "21164pc", TYPE("pca56") },
86 { "21264", TYPE("ev6") },
87 { "21264a", TYPE("ev67") },
90 static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
92 ObjectClass *oc = NULL;
93 char *typename;
94 int i;
96 if (cpu_model == NULL) {
97 return NULL;
100 oc = object_class_by_name(cpu_model);
101 if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
102 !object_class_is_abstract(oc)) {
103 return oc;
106 for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
107 if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
108 oc = object_class_by_name(alpha_cpu_aliases[i].typename);
109 assert(oc != NULL && !object_class_is_abstract(oc));
110 return oc;
114 typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model);
115 oc = object_class_by_name(typename);
116 g_free(typename);
117 if (oc != NULL && object_class_is_abstract(oc)) {
118 oc = NULL;
120 return oc;
123 AlphaCPU *cpu_alpha_init(const char *cpu_model)
125 AlphaCPU *cpu;
126 CPUAlphaState *env;
127 ObjectClass *cpu_class;
129 cpu_class = alpha_cpu_class_by_name(cpu_model);
130 if (cpu_class == NULL) {
131 /* Default to ev67; no reason not to emulate insns by default. */
132 cpu_class = object_class_by_name(TYPE("ev67"));
134 cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class)));
135 env = &cpu->env;
137 env->cpu_model_str = cpu_model;
139 object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
141 return cpu;
144 static void ev4_cpu_initfn(Object *obj)
146 AlphaCPU *cpu = ALPHA_CPU(obj);
147 CPUAlphaState *env = &cpu->env;
149 env->implver = IMPLVER_2106x;
152 static const TypeInfo ev4_cpu_type_info = {
153 .name = TYPE("ev4"),
154 .parent = TYPE_ALPHA_CPU,
155 .instance_init = ev4_cpu_initfn,
158 static void ev5_cpu_initfn(Object *obj)
160 AlphaCPU *cpu = ALPHA_CPU(obj);
161 CPUAlphaState *env = &cpu->env;
163 env->implver = IMPLVER_21164;
166 static const TypeInfo ev5_cpu_type_info = {
167 .name = TYPE("ev5"),
168 .parent = TYPE_ALPHA_CPU,
169 .instance_init = ev5_cpu_initfn,
172 static void ev56_cpu_initfn(Object *obj)
174 AlphaCPU *cpu = ALPHA_CPU(obj);
175 CPUAlphaState *env = &cpu->env;
177 env->amask |= AMASK_BWX;
180 static const TypeInfo ev56_cpu_type_info = {
181 .name = TYPE("ev56"),
182 .parent = TYPE("ev5"),
183 .instance_init = ev56_cpu_initfn,
186 static void pca56_cpu_initfn(Object *obj)
188 AlphaCPU *cpu = ALPHA_CPU(obj);
189 CPUAlphaState *env = &cpu->env;
191 env->amask |= AMASK_MVI;
194 static const TypeInfo pca56_cpu_type_info = {
195 .name = TYPE("pca56"),
196 .parent = TYPE("ev56"),
197 .instance_init = pca56_cpu_initfn,
200 static void ev6_cpu_initfn(Object *obj)
202 AlphaCPU *cpu = ALPHA_CPU(obj);
203 CPUAlphaState *env = &cpu->env;
205 env->implver = IMPLVER_21264;
206 env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
209 static const TypeInfo ev6_cpu_type_info = {
210 .name = TYPE("ev6"),
211 .parent = TYPE_ALPHA_CPU,
212 .instance_init = ev6_cpu_initfn,
215 static void ev67_cpu_initfn(Object *obj)
217 AlphaCPU *cpu = ALPHA_CPU(obj);
218 CPUAlphaState *env = &cpu->env;
220 env->amask |= AMASK_CIX | AMASK_PREFETCH;
223 static const TypeInfo ev67_cpu_type_info = {
224 .name = TYPE("ev67"),
225 .parent = TYPE("ev6"),
226 .instance_init = ev67_cpu_initfn,
229 static const TypeInfo ev68_cpu_type_info = {
230 .name = TYPE("ev68"),
231 .parent = TYPE("ev67"),
234 static void alpha_cpu_initfn(Object *obj)
236 CPUState *cs = CPU(obj);
237 AlphaCPU *cpu = ALPHA_CPU(obj);
238 CPUAlphaState *env = &cpu->env;
240 cs->env_ptr = env;
241 cpu_exec_init(env);
242 tlb_flush(env, 1);
244 alpha_translate_init();
246 #if defined(CONFIG_USER_ONLY)
247 env->ps = PS_USER_MODE;
248 cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
249 | FPCR_UNFD | FPCR_INED | FPCR_DNOD
250 | FPCR_DYN_NORMAL));
251 #endif
252 env->lock_addr = -1;
253 env->fen = 1;
256 static void alpha_cpu_class_init(ObjectClass *oc, void *data)
258 DeviceClass *dc = DEVICE_CLASS(oc);
259 CPUClass *cc = CPU_CLASS(oc);
260 AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc);
262 acc->parent_realize = dc->realize;
263 dc->realize = alpha_cpu_realizefn;
265 cc->class_by_name = alpha_cpu_class_by_name;
268 static const TypeInfo alpha_cpu_type_info = {
269 .name = TYPE_ALPHA_CPU,
270 .parent = TYPE_CPU,
271 .instance_size = sizeof(AlphaCPU),
272 .instance_init = alpha_cpu_initfn,
273 .abstract = true,
274 .class_size = sizeof(AlphaCPUClass),
275 .class_init = alpha_cpu_class_init,
278 static void alpha_cpu_register_types(void)
280 type_register_static(&alpha_cpu_type_info);
281 type_register_static(&ev4_cpu_type_info);
282 type_register_static(&ev5_cpu_type_info);
283 type_register_static(&ev56_cpu_type_info);
284 type_register_static(&pca56_cpu_type_info);
285 type_register_static(&ev6_cpu_type_info);
286 type_register_static(&ev67_cpu_type_info);
287 type_register_static(&ev68_cpu_type_info);
290 type_init(alpha_cpu_register_types)