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25ebd80f AF |
1 | /* |
2 | * QEMU Alpha CPU | |
3 | * | |
9444006f | 4 | * Copyright (c) 2007 Jocelyn Mayer |
25ebd80f AF |
5 | * Copyright (c) 2012 SUSE LINUX Products GmbH |
6 | * | |
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. | |
11 | * | |
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. | |
16 | * | |
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> | |
20 | */ | |
21 | ||
3993c6bd | 22 | #include "cpu.h" |
25ebd80f | 23 | #include "qemu-common.h" |
501a7ce7 | 24 | #include "qapi/error.h" |
25ebd80f AF |
25 | |
26 | ||
0c28246f AF |
27 | static void alpha_cpu_realize(Object *obj, Error **errp) |
28 | { | |
0c28246f AF |
29 | AlphaCPU *cpu = ALPHA_CPU(obj); |
30 | ||
31 | qemu_init_vcpu(&cpu->env); | |
0c28246f AF |
32 | } |
33 | ||
494342b3 AF |
34 | /* Sort alphabetically by type name. */ |
35 | static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b) | |
36 | { | |
37 | ObjectClass *class_a = (ObjectClass *)a; | |
38 | ObjectClass *class_b = (ObjectClass *)b; | |
39 | const char *name_a, *name_b; | |
40 | ||
41 | name_a = object_class_get_name(class_a); | |
42 | name_b = object_class_get_name(class_b); | |
43 | return strcmp(name_a, name_b); | |
44 | } | |
45 | ||
46 | static void alpha_cpu_list_entry(gpointer data, gpointer user_data) | |
47 | { | |
48 | ObjectClass *oc = data; | |
92a31361 | 49 | CPUListState *s = user_data; |
494342b3 AF |
50 | |
51 | (*s->cpu_fprintf)(s->file, " %s\n", | |
52 | object_class_get_name(oc)); | |
53 | } | |
54 | ||
55 | void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf) | |
56 | { | |
92a31361 | 57 | CPUListState s = { |
494342b3 AF |
58 | .file = f, |
59 | .cpu_fprintf = cpu_fprintf, | |
60 | }; | |
61 | GSList *list; | |
62 | ||
63 | list = object_class_get_list(TYPE_ALPHA_CPU, false); | |
64 | list = g_slist_sort(list, alpha_cpu_list_compare); | |
65 | (*cpu_fprintf)(f, "Available CPUs:\n"); | |
66 | g_slist_foreach(list, alpha_cpu_list_entry, &s); | |
67 | g_slist_free(list); | |
68 | } | |
69 | ||
0c28246f AF |
70 | /* Models */ |
71 | ||
72 | #define TYPE(model) model "-" TYPE_ALPHA_CPU | |
73 | ||
74 | typedef struct AlphaCPUAlias { | |
75 | const char *alias; | |
76 | const char *typename; | |
77 | } AlphaCPUAlias; | |
78 | ||
79 | static const AlphaCPUAlias alpha_cpu_aliases[] = { | |
80 | { "21064", TYPE("ev4") }, | |
81 | { "21164", TYPE("ev5") }, | |
82 | { "21164a", TYPE("ev56") }, | |
83 | { "21164pc", TYPE("pca56") }, | |
84 | { "21264", TYPE("ev6") }, | |
85 | { "21264a", TYPE("ev67") }, | |
86 | }; | |
87 | ||
88 | static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model) | |
89 | { | |
90 | ObjectClass *oc = NULL; | |
91 | char *typename; | |
92 | int i; | |
93 | ||
94 | if (cpu_model == NULL) { | |
95 | return NULL; | |
96 | } | |
97 | ||
98 | oc = object_class_by_name(cpu_model); | |
a120c287 AF |
99 | if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL && |
100 | !object_class_is_abstract(oc)) { | |
0c28246f AF |
101 | return oc; |
102 | } | |
103 | ||
104 | for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) { | |
105 | if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) { | |
106 | oc = object_class_by_name(alpha_cpu_aliases[i].typename); | |
a120c287 | 107 | assert(oc != NULL && !object_class_is_abstract(oc)); |
0c28246f AF |
108 | return oc; |
109 | } | |
110 | } | |
111 | ||
112 | typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model); | |
113 | oc = object_class_by_name(typename); | |
114 | g_free(typename); | |
a120c287 AF |
115 | if (oc != NULL && object_class_is_abstract(oc)) { |
116 | oc = NULL; | |
117 | } | |
0c28246f AF |
118 | return oc; |
119 | } | |
120 | ||
121 | AlphaCPU *cpu_alpha_init(const char *cpu_model) | |
122 | { | |
123 | AlphaCPU *cpu; | |
124 | CPUAlphaState *env; | |
125 | ObjectClass *cpu_class; | |
126 | ||
127 | cpu_class = alpha_cpu_class_by_name(cpu_model); | |
128 | if (cpu_class == NULL) { | |
129 | /* Default to ev67; no reason not to emulate insns by default. */ | |
130 | cpu_class = object_class_by_name(TYPE("ev67")); | |
131 | } | |
132 | cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class))); | |
133 | env = &cpu->env; | |
134 | ||
135 | env->cpu_model_str = cpu_model; | |
136 | ||
137 | alpha_cpu_realize(OBJECT(cpu), NULL); | |
138 | return cpu; | |
139 | } | |
140 | ||
141 | static void ev4_cpu_initfn(Object *obj) | |
142 | { | |
143 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
144 | CPUAlphaState *env = &cpu->env; | |
145 | ||
146 | env->implver = IMPLVER_2106x; | |
147 | } | |
148 | ||
149 | static const TypeInfo ev4_cpu_type_info = { | |
150 | .name = TYPE("ev4"), | |
151 | .parent = TYPE_ALPHA_CPU, | |
152 | .instance_init = ev4_cpu_initfn, | |
153 | }; | |
154 | ||
155 | static void ev5_cpu_initfn(Object *obj) | |
156 | { | |
157 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
158 | CPUAlphaState *env = &cpu->env; | |
159 | ||
160 | env->implver = IMPLVER_21164; | |
161 | } | |
162 | ||
163 | static const TypeInfo ev5_cpu_type_info = { | |
164 | .name = TYPE("ev5"), | |
165 | .parent = TYPE_ALPHA_CPU, | |
166 | .instance_init = ev5_cpu_initfn, | |
167 | }; | |
168 | ||
169 | static void ev56_cpu_initfn(Object *obj) | |
170 | { | |
171 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
172 | CPUAlphaState *env = &cpu->env; | |
173 | ||
174 | env->amask |= AMASK_BWX; | |
175 | } | |
176 | ||
177 | static const TypeInfo ev56_cpu_type_info = { | |
178 | .name = TYPE("ev56"), | |
179 | .parent = TYPE("ev5"), | |
180 | .instance_init = ev56_cpu_initfn, | |
181 | }; | |
182 | ||
183 | static void pca56_cpu_initfn(Object *obj) | |
184 | { | |
185 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
186 | CPUAlphaState *env = &cpu->env; | |
187 | ||
188 | env->amask |= AMASK_MVI; | |
189 | } | |
190 | ||
191 | static const TypeInfo pca56_cpu_type_info = { | |
192 | .name = TYPE("pca56"), | |
193 | .parent = TYPE("ev56"), | |
194 | .instance_init = pca56_cpu_initfn, | |
195 | }; | |
196 | ||
197 | static void ev6_cpu_initfn(Object *obj) | |
198 | { | |
199 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
200 | CPUAlphaState *env = &cpu->env; | |
201 | ||
202 | env->implver = IMPLVER_21264; | |
203 | env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP; | |
204 | } | |
205 | ||
206 | static const TypeInfo ev6_cpu_type_info = { | |
207 | .name = TYPE("ev6"), | |
208 | .parent = TYPE_ALPHA_CPU, | |
209 | .instance_init = ev6_cpu_initfn, | |
210 | }; | |
211 | ||
212 | static void ev67_cpu_initfn(Object *obj) | |
213 | { | |
214 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
215 | CPUAlphaState *env = &cpu->env; | |
216 | ||
217 | env->amask |= AMASK_CIX | AMASK_PREFETCH; | |
218 | } | |
219 | ||
220 | static const TypeInfo ev67_cpu_type_info = { | |
221 | .name = TYPE("ev67"), | |
222 | .parent = TYPE("ev6"), | |
223 | .instance_init = ev67_cpu_initfn, | |
224 | }; | |
225 | ||
226 | static const TypeInfo ev68_cpu_type_info = { | |
227 | .name = TYPE("ev68"), | |
228 | .parent = TYPE("ev67"), | |
229 | }; | |
230 | ||
9444006f AF |
231 | static void alpha_cpu_initfn(Object *obj) |
232 | { | |
233 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
234 | CPUAlphaState *env = &cpu->env; | |
235 | ||
236 | cpu_exec_init(env); | |
237 | tlb_flush(env, 1); | |
238 | ||
0c28246f AF |
239 | alpha_translate_init(); |
240 | ||
9444006f AF |
241 | #if defined(CONFIG_USER_ONLY) |
242 | env->ps = PS_USER_MODE; | |
243 | cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD | |
244 | | FPCR_UNFD | FPCR_INED | FPCR_DNOD | |
245 | | FPCR_DYN_NORMAL)); | |
246 | #endif | |
247 | env->lock_addr = -1; | |
248 | env->fen = 1; | |
249 | } | |
250 | ||
2b8c2754 AF |
251 | static void alpha_cpu_class_init(ObjectClass *oc, void *data) |
252 | { | |
253 | CPUClass *cc = CPU_CLASS(oc); | |
254 | ||
255 | cc->class_by_name = alpha_cpu_class_by_name; | |
256 | } | |
257 | ||
25ebd80f AF |
258 | static const TypeInfo alpha_cpu_type_info = { |
259 | .name = TYPE_ALPHA_CPU, | |
260 | .parent = TYPE_CPU, | |
261 | .instance_size = sizeof(AlphaCPU), | |
9444006f | 262 | .instance_init = alpha_cpu_initfn, |
0c28246f | 263 | .abstract = true, |
25ebd80f | 264 | .class_size = sizeof(AlphaCPUClass), |
2b8c2754 | 265 | .class_init = alpha_cpu_class_init, |
25ebd80f AF |
266 | }; |
267 | ||
268 | static void alpha_cpu_register_types(void) | |
269 | { | |
270 | type_register_static(&alpha_cpu_type_info); | |
0c28246f AF |
271 | type_register_static(&ev4_cpu_type_info); |
272 | type_register_static(&ev5_cpu_type_info); | |
273 | type_register_static(&ev56_cpu_type_info); | |
274 | type_register_static(&pca56_cpu_type_info); | |
275 | type_register_static(&ev6_cpu_type_info); | |
276 | type_register_static(&ev67_cpu_type_info); | |
277 | type_register_static(&ev68_cpu_type_info); | |
25ebd80f AF |
278 | } |
279 | ||
280 | type_init(alpha_cpu_register_types) |