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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" |
fe31e737 | 24 | #include "migration/vmstate.h" |
25ebd80f AF |
25 | |
26 | ||
f45748f1 AF |
27 | static void alpha_cpu_set_pc(CPUState *cs, vaddr value) |
28 | { | |
29 | AlphaCPU *cpu = ALPHA_CPU(cs); | |
30 | ||
31 | cpu->env.pc = value; | |
32 | } | |
33 | ||
bd1b2828 | 34 | static void alpha_cpu_realizefn(DeviceState *dev, Error **errp) |
0c28246f | 35 | { |
14a10fc3 | 36 | CPUState *cs = CPU(dev); |
bd1b2828 | 37 | AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev); |
0c28246f | 38 | |
14a10fc3 AF |
39 | qemu_init_vcpu(cs); |
40 | ||
bd1b2828 | 41 | acc->parent_realize(dev, errp); |
0c28246f AF |
42 | } |
43 | ||
494342b3 AF |
44 | /* Sort alphabetically by type name. */ |
45 | static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b) | |
46 | { | |
47 | ObjectClass *class_a = (ObjectClass *)a; | |
48 | ObjectClass *class_b = (ObjectClass *)b; | |
49 | const char *name_a, *name_b; | |
50 | ||
51 | name_a = object_class_get_name(class_a); | |
52 | name_b = object_class_get_name(class_b); | |
53 | return strcmp(name_a, name_b); | |
54 | } | |
55 | ||
56 | static void alpha_cpu_list_entry(gpointer data, gpointer user_data) | |
57 | { | |
58 | ObjectClass *oc = data; | |
92a31361 | 59 | CPUListState *s = user_data; |
494342b3 AF |
60 | |
61 | (*s->cpu_fprintf)(s->file, " %s\n", | |
62 | object_class_get_name(oc)); | |
63 | } | |
64 | ||
65 | void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf) | |
66 | { | |
92a31361 | 67 | CPUListState s = { |
494342b3 AF |
68 | .file = f, |
69 | .cpu_fprintf = cpu_fprintf, | |
70 | }; | |
71 | GSList *list; | |
72 | ||
73 | list = object_class_get_list(TYPE_ALPHA_CPU, false); | |
74 | list = g_slist_sort(list, alpha_cpu_list_compare); | |
75 | (*cpu_fprintf)(f, "Available CPUs:\n"); | |
76 | g_slist_foreach(list, alpha_cpu_list_entry, &s); | |
77 | g_slist_free(list); | |
78 | } | |
79 | ||
0c28246f AF |
80 | /* Models */ |
81 | ||
82 | #define TYPE(model) model "-" TYPE_ALPHA_CPU | |
83 | ||
84 | typedef struct AlphaCPUAlias { | |
85 | const char *alias; | |
86 | const char *typename; | |
87 | } AlphaCPUAlias; | |
88 | ||
89 | static const AlphaCPUAlias alpha_cpu_aliases[] = { | |
90 | { "21064", TYPE("ev4") }, | |
91 | { "21164", TYPE("ev5") }, | |
92 | { "21164a", TYPE("ev56") }, | |
93 | { "21164pc", TYPE("pca56") }, | |
94 | { "21264", TYPE("ev6") }, | |
95 | { "21264a", TYPE("ev67") }, | |
96 | }; | |
97 | ||
98 | static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model) | |
99 | { | |
100 | ObjectClass *oc = NULL; | |
101 | char *typename; | |
102 | int i; | |
103 | ||
104 | if (cpu_model == NULL) { | |
105 | return NULL; | |
106 | } | |
107 | ||
108 | oc = object_class_by_name(cpu_model); | |
a120c287 AF |
109 | if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL && |
110 | !object_class_is_abstract(oc)) { | |
0c28246f AF |
111 | return oc; |
112 | } | |
113 | ||
114 | for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) { | |
115 | if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) { | |
116 | oc = object_class_by_name(alpha_cpu_aliases[i].typename); | |
a120c287 | 117 | assert(oc != NULL && !object_class_is_abstract(oc)); |
0c28246f AF |
118 | return oc; |
119 | } | |
120 | } | |
121 | ||
122 | typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model); | |
123 | oc = object_class_by_name(typename); | |
124 | g_free(typename); | |
a120c287 AF |
125 | if (oc != NULL && object_class_is_abstract(oc)) { |
126 | oc = NULL; | |
127 | } | |
0c28246f AF |
128 | return oc; |
129 | } | |
130 | ||
131 | AlphaCPU *cpu_alpha_init(const char *cpu_model) | |
132 | { | |
133 | AlphaCPU *cpu; | |
134 | CPUAlphaState *env; | |
135 | ObjectClass *cpu_class; | |
136 | ||
137 | cpu_class = alpha_cpu_class_by_name(cpu_model); | |
138 | if (cpu_class == NULL) { | |
139 | /* Default to ev67; no reason not to emulate insns by default. */ | |
140 | cpu_class = object_class_by_name(TYPE("ev67")); | |
141 | } | |
142 | cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class))); | |
143 | env = &cpu->env; | |
144 | ||
145 | env->cpu_model_str = cpu_model; | |
146 | ||
bd1b2828 AF |
147 | object_property_set_bool(OBJECT(cpu), true, "realized", NULL); |
148 | ||
0c28246f AF |
149 | return cpu; |
150 | } | |
151 | ||
152 | static void ev4_cpu_initfn(Object *obj) | |
153 | { | |
154 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
155 | CPUAlphaState *env = &cpu->env; | |
156 | ||
157 | env->implver = IMPLVER_2106x; | |
158 | } | |
159 | ||
160 | static const TypeInfo ev4_cpu_type_info = { | |
161 | .name = TYPE("ev4"), | |
162 | .parent = TYPE_ALPHA_CPU, | |
163 | .instance_init = ev4_cpu_initfn, | |
164 | }; | |
165 | ||
166 | static void ev5_cpu_initfn(Object *obj) | |
167 | { | |
168 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
169 | CPUAlphaState *env = &cpu->env; | |
170 | ||
171 | env->implver = IMPLVER_21164; | |
172 | } | |
173 | ||
174 | static const TypeInfo ev5_cpu_type_info = { | |
175 | .name = TYPE("ev5"), | |
176 | .parent = TYPE_ALPHA_CPU, | |
177 | .instance_init = ev5_cpu_initfn, | |
178 | }; | |
179 | ||
180 | static void ev56_cpu_initfn(Object *obj) | |
181 | { | |
182 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
183 | CPUAlphaState *env = &cpu->env; | |
184 | ||
185 | env->amask |= AMASK_BWX; | |
186 | } | |
187 | ||
188 | static const TypeInfo ev56_cpu_type_info = { | |
189 | .name = TYPE("ev56"), | |
190 | .parent = TYPE("ev5"), | |
191 | .instance_init = ev56_cpu_initfn, | |
192 | }; | |
193 | ||
194 | static void pca56_cpu_initfn(Object *obj) | |
195 | { | |
196 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
197 | CPUAlphaState *env = &cpu->env; | |
198 | ||
199 | env->amask |= AMASK_MVI; | |
200 | } | |
201 | ||
202 | static const TypeInfo pca56_cpu_type_info = { | |
203 | .name = TYPE("pca56"), | |
204 | .parent = TYPE("ev56"), | |
205 | .instance_init = pca56_cpu_initfn, | |
206 | }; | |
207 | ||
208 | static void ev6_cpu_initfn(Object *obj) | |
209 | { | |
210 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
211 | CPUAlphaState *env = &cpu->env; | |
212 | ||
213 | env->implver = IMPLVER_21264; | |
214 | env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP; | |
215 | } | |
216 | ||
217 | static const TypeInfo ev6_cpu_type_info = { | |
218 | .name = TYPE("ev6"), | |
219 | .parent = TYPE_ALPHA_CPU, | |
220 | .instance_init = ev6_cpu_initfn, | |
221 | }; | |
222 | ||
223 | static void ev67_cpu_initfn(Object *obj) | |
224 | { | |
225 | AlphaCPU *cpu = ALPHA_CPU(obj); | |
226 | CPUAlphaState *env = &cpu->env; | |
227 | ||
228 | env->amask |= AMASK_CIX | AMASK_PREFETCH; | |
229 | } | |
230 | ||
231 | static const TypeInfo ev67_cpu_type_info = { | |
232 | .name = TYPE("ev67"), | |
233 | .parent = TYPE("ev6"), | |
234 | .instance_init = ev67_cpu_initfn, | |
235 | }; | |
236 | ||
237 | static const TypeInfo ev68_cpu_type_info = { | |
238 | .name = TYPE("ev68"), | |
239 | .parent = TYPE("ev67"), | |
240 | }; | |
241 | ||
9444006f AF |
242 | static void alpha_cpu_initfn(Object *obj) |
243 | { | |
c05efcb1 | 244 | CPUState *cs = CPU(obj); |
9444006f AF |
245 | AlphaCPU *cpu = ALPHA_CPU(obj); |
246 | CPUAlphaState *env = &cpu->env; | |
247 | ||
c05efcb1 | 248 | cs->env_ptr = env; |
9444006f AF |
249 | cpu_exec_init(env); |
250 | tlb_flush(env, 1); | |
251 | ||
0c28246f AF |
252 | alpha_translate_init(); |
253 | ||
9444006f AF |
254 | #if defined(CONFIG_USER_ONLY) |
255 | env->ps = PS_USER_MODE; | |
256 | cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD | |
257 | | FPCR_UNFD | FPCR_INED | FPCR_DNOD | |
258 | | FPCR_DYN_NORMAL)); | |
259 | #endif | |
260 | env->lock_addr = -1; | |
261 | env->fen = 1; | |
262 | } | |
263 | ||
2b8c2754 AF |
264 | static void alpha_cpu_class_init(ObjectClass *oc, void *data) |
265 | { | |
bd1b2828 | 266 | DeviceClass *dc = DEVICE_CLASS(oc); |
2b8c2754 | 267 | CPUClass *cc = CPU_CLASS(oc); |
bd1b2828 AF |
268 | AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc); |
269 | ||
270 | acc->parent_realize = dc->realize; | |
271 | dc->realize = alpha_cpu_realizefn; | |
2b8c2754 AF |
272 | |
273 | cc->class_by_name = alpha_cpu_class_by_name; | |
97a8ea5a | 274 | cc->do_interrupt = alpha_cpu_do_interrupt; |
878096ee | 275 | cc->dump_state = alpha_cpu_dump_state; |
f45748f1 | 276 | cc->set_pc = alpha_cpu_set_pc; |
5b50e790 AF |
277 | cc->gdb_read_register = alpha_cpu_gdb_read_register; |
278 | cc->gdb_write_register = alpha_cpu_gdb_write_register; | |
00b941e5 AF |
279 | #ifndef CONFIG_USER_ONLY |
280 | cc->do_unassigned_access = alpha_cpu_unassigned_access; | |
281 | cc->get_phys_page_debug = alpha_cpu_get_phys_page_debug; | |
282 | dc->vmsd = &vmstate_alpha_cpu; | |
283 | #endif | |
a0e372f0 | 284 | cc->gdb_num_core_regs = 67; |
2b8c2754 AF |
285 | } |
286 | ||
25ebd80f AF |
287 | static const TypeInfo alpha_cpu_type_info = { |
288 | .name = TYPE_ALPHA_CPU, | |
289 | .parent = TYPE_CPU, | |
290 | .instance_size = sizeof(AlphaCPU), | |
9444006f | 291 | .instance_init = alpha_cpu_initfn, |
0c28246f | 292 | .abstract = true, |
25ebd80f | 293 | .class_size = sizeof(AlphaCPUClass), |
2b8c2754 | 294 | .class_init = alpha_cpu_class_init, |
25ebd80f AF |
295 | }; |
296 | ||
297 | static void alpha_cpu_register_types(void) | |
298 | { | |
299 | type_register_static(&alpha_cpu_type_info); | |
0c28246f AF |
300 | type_register_static(&ev4_cpu_type_info); |
301 | type_register_static(&ev5_cpu_type_info); | |
302 | type_register_static(&ev56_cpu_type_info); | |
303 | type_register_static(&pca56_cpu_type_info); | |
304 | type_register_static(&ev6_cpu_type_info); | |
305 | type_register_static(&ev67_cpu_type_info); | |
306 | type_register_static(&ev68_cpu_type_info); | |
25ebd80f AF |
307 | } |
308 | ||
309 | type_init(alpha_cpu_register_types) |