1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#include "qemu/osdep.h"
23#include "qapi/error.h"
24#include "cpu.h"
25#include "qemu-common.h"
26#include "exec/exec-all.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 Error *local_err = NULL;
62
63 cpu_exec_realizefn(cs, &local_err);
64 if (local_err != NULL) {
65 error_propagate(errp, local_err);
66 return;
67 }
68
69 qemu_init_vcpu(cs);
70
71 acc->parent_realize(dev, errp);
72}
73
74
75static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
76{
77 ObjectClass *class_a = (ObjectClass *)a;
78 ObjectClass *class_b = (ObjectClass *)b;
79 const char *name_a, *name_b;
80
81 name_a = object_class_get_name(class_a);
82 name_b = object_class_get_name(class_b);
83 return strcmp(name_a, name_b);
84}
85
86static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
87{
88 ObjectClass *oc = data;
89 CPUListState *s = user_data;
90
91 (*s->cpu_fprintf)(s->file, " %s\n",
92 object_class_get_name(oc));
93}
94
95void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
96{
97 CPUListState s = {
98 .file = f,
99 .cpu_fprintf = cpu_fprintf,
100 };
101 GSList *list;
102
103 list = object_class_get_list(TYPE_ALPHA_CPU, false);
104 list = g_slist_sort(list, alpha_cpu_list_compare);
105 (*cpu_fprintf)(f, "Available CPUs:\n");
106 g_slist_foreach(list, alpha_cpu_list_entry, &s);
107 g_slist_free(list);
108}
109
110
111
112#define TYPE(model) model "-" TYPE_ALPHA_CPU
113
114typedef struct AlphaCPUAlias {
115 const char *alias;
116 const char *typename;
117} AlphaCPUAlias;
118
119static const AlphaCPUAlias alpha_cpu_aliases[] = {
120 { "21064", TYPE("ev4") },
121 { "21164", TYPE("ev5") },
122 { "21164a", TYPE("ev56") },
123 { "21164pc", TYPE("pca56") },
124 { "21264", TYPE("ev6") },
125 { "21264a", TYPE("ev67") },
126};
127
128static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
129{
130 ObjectClass *oc = NULL;
131 char *typename;
132 int i;
133
134 if (cpu_model == NULL) {
135 return NULL;
136 }
137
138 oc = object_class_by_name(cpu_model);
139 if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
140 !object_class_is_abstract(oc)) {
141 return oc;
142 }
143
144 for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
145 if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
146 oc = object_class_by_name(alpha_cpu_aliases[i].typename);
147 assert(oc != NULL && !object_class_is_abstract(oc));
148 return oc;
149 }
150 }
151
152 typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model);
153 oc = object_class_by_name(typename);
154 g_free(typename);
155 if (oc != NULL && object_class_is_abstract(oc)) {
156 oc = NULL;
157 }
158 return oc;
159}
160
161AlphaCPU *cpu_alpha_init(const char *cpu_model)
162{
163 AlphaCPU *cpu;
164 ObjectClass *cpu_class;
165
166 cpu_class = alpha_cpu_class_by_name(cpu_model);
167 if (cpu_class == NULL) {
168
169 cpu_class = object_class_by_name(TYPE("ev67"));
170 }
171 cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class)));
172
173 object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
174
175 return cpu;
176}
177
178static void ev4_cpu_initfn(Object *obj)
179{
180 AlphaCPU *cpu = ALPHA_CPU(obj);
181 CPUAlphaState *env = &cpu->env;
182
183 env->implver = IMPLVER_2106x;
184}
185
186static const TypeInfo ev4_cpu_type_info = {
187 .name = TYPE("ev4"),
188 .parent = TYPE_ALPHA_CPU,
189 .instance_init = ev4_cpu_initfn,
190};
191
192static void ev5_cpu_initfn(Object *obj)
193{
194 AlphaCPU *cpu = ALPHA_CPU(obj);
195 CPUAlphaState *env = &cpu->env;
196
197 env->implver = IMPLVER_21164;
198}
199
200static const TypeInfo ev5_cpu_type_info = {
201 .name = TYPE("ev5"),
202 .parent = TYPE_ALPHA_CPU,
203 .instance_init = ev5_cpu_initfn,
204};
205
206static void ev56_cpu_initfn(Object *obj)
207{
208 AlphaCPU *cpu = ALPHA_CPU(obj);
209 CPUAlphaState *env = &cpu->env;
210
211 env->amask |= AMASK_BWX;
212}
213
214static const TypeInfo ev56_cpu_type_info = {
215 .name = TYPE("ev56"),
216 .parent = TYPE("ev5"),
217 .instance_init = ev56_cpu_initfn,
218};
219
220static void pca56_cpu_initfn(Object *obj)
221{
222 AlphaCPU *cpu = ALPHA_CPU(obj);
223 CPUAlphaState *env = &cpu->env;
224
225 env->amask |= AMASK_MVI;
226}
227
228static const TypeInfo pca56_cpu_type_info = {
229 .name = TYPE("pca56"),
230 .parent = TYPE("ev56"),
231 .instance_init = pca56_cpu_initfn,
232};
233
234static void ev6_cpu_initfn(Object *obj)
235{
236 AlphaCPU *cpu = ALPHA_CPU(obj);
237 CPUAlphaState *env = &cpu->env;
238
239 env->implver = IMPLVER_21264;
240 env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
241}
242
243static const TypeInfo ev6_cpu_type_info = {
244 .name = TYPE("ev6"),
245 .parent = TYPE_ALPHA_CPU,
246 .instance_init = ev6_cpu_initfn,
247};
248
249static void ev67_cpu_initfn(Object *obj)
250{
251 AlphaCPU *cpu = ALPHA_CPU(obj);
252 CPUAlphaState *env = &cpu->env;
253
254 env->amask |= AMASK_CIX | AMASK_PREFETCH;
255}
256
257static const TypeInfo ev67_cpu_type_info = {
258 .name = TYPE("ev67"),
259 .parent = TYPE("ev6"),
260 .instance_init = ev67_cpu_initfn,
261};
262
263static const TypeInfo ev68_cpu_type_info = {
264 .name = TYPE("ev68"),
265 .parent = TYPE("ev67"),
266};
267
268static void alpha_cpu_initfn(Object *obj)
269{
270 CPUState *cs = CPU(obj);
271 AlphaCPU *cpu = ALPHA_CPU(obj);
272 CPUAlphaState *env = &cpu->env;
273
274 cs->env_ptr = env;
275 tlb_flush(cs);
276
277 alpha_translate_init();
278
279 env->lock_addr = -1;
280#if defined(CONFIG_USER_ONLY)
281 env->flags = ENV_FLAG_PS_USER | ENV_FLAG_FEN;
282 cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
283 | FPCR_UNFD | FPCR_INED | FPCR_DNOD
284 | FPCR_DYN_NORMAL));
285#else
286 env->flags = ENV_FLAG_PAL_MODE | ENV_FLAG_FEN;
287#endif
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
