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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 "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
111typedef struct AlphaCPUAlias {
112 const char *alias;
113 const char *typename;
114} AlphaCPUAlias;
115
116static const AlphaCPUAlias alpha_cpu_aliases[] = {
117 { "21064", ALPHA_CPU_TYPE_NAME("ev4") },
118 { "21164", ALPHA_CPU_TYPE_NAME("ev5") },
119 { "21164a", ALPHA_CPU_TYPE_NAME("ev56") },
120 { "21164pc", ALPHA_CPU_TYPE_NAME("pca56") },
121 { "21264", ALPHA_CPU_TYPE_NAME("ev6") },
122 { "21264a", ALPHA_CPU_TYPE_NAME("ev67") },
123};
124
125static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
126{
127 ObjectClass *oc;
128 char *typename;
129 int i;
130
131 oc = object_class_by_name(cpu_model);
132 if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
133 !object_class_is_abstract(oc)) {
134 return oc;
135 }
136
137 for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
138 if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
139 oc = object_class_by_name(alpha_cpu_aliases[i].typename);
140 assert(oc != NULL && !object_class_is_abstract(oc));
141 return oc;
142 }
143 }
144
145 typename = g_strdup_printf(ALPHA_CPU_TYPE_NAME("%s"), cpu_model);
146 oc = object_class_by_name(typename);
147 g_free(typename);
148 if (oc != NULL && object_class_is_abstract(oc)) {
149 oc = NULL;
150 }
151
152
153
154 if (!oc) {
155 oc = object_class_by_name(ALPHA_CPU_TYPE_NAME("ev67"));
156 }
157
158 return oc;
159}
160
161static void ev4_cpu_initfn(Object *obj)
162{
163 AlphaCPU *cpu = ALPHA_CPU(obj);
164 CPUAlphaState *env = &cpu->env;
165
166 env->implver = IMPLVER_2106x;
167}
168
169static void ev5_cpu_initfn(Object *obj)
170{
171 AlphaCPU *cpu = ALPHA_CPU(obj);
172 CPUAlphaState *env = &cpu->env;
173
174 env->implver = IMPLVER_21164;
175}
176
177static void ev56_cpu_initfn(Object *obj)
178{
179 AlphaCPU *cpu = ALPHA_CPU(obj);
180 CPUAlphaState *env = &cpu->env;
181
182 env->amask |= AMASK_BWX;
183}
184
185static void pca56_cpu_initfn(Object *obj)
186{
187 AlphaCPU *cpu = ALPHA_CPU(obj);
188 CPUAlphaState *env = &cpu->env;
189
190 env->amask |= AMASK_MVI;
191}
192
193static void ev6_cpu_initfn(Object *obj)
194{
195 AlphaCPU *cpu = ALPHA_CPU(obj);
196 CPUAlphaState *env = &cpu->env;
197
198 env->implver = IMPLVER_21264;
199 env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
200}
201
202static void ev67_cpu_initfn(Object *obj)
203{
204 AlphaCPU *cpu = ALPHA_CPU(obj);
205 CPUAlphaState *env = &cpu->env;
206
207 env->amask |= AMASK_CIX | AMASK_PREFETCH;
208}
209
210static void alpha_cpu_initfn(Object *obj)
211{
212 CPUState *cs = CPU(obj);
213 AlphaCPU *cpu = ALPHA_CPU(obj);
214 CPUAlphaState *env = &cpu->env;
215
216 cs->env_ptr = env;
217 tlb_flush(cs);
218
219 env->lock_addr = -1;
220#if defined(CONFIG_USER_ONLY)
221 env->flags = ENV_FLAG_PS_USER | ENV_FLAG_FEN;
222 cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
223 | FPCR_UNFD | FPCR_INED | FPCR_DNOD
224 | FPCR_DYN_NORMAL));
225#else
226 env->flags = ENV_FLAG_PAL_MODE | ENV_FLAG_FEN;
227#endif
228}
229
230static void alpha_cpu_class_init(ObjectClass *oc, void *data)
231{
232 DeviceClass *dc = DEVICE_CLASS(oc);
233 CPUClass *cc = CPU_CLASS(oc);
234 AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc);
235
236 acc->parent_realize = dc->realize;
237 dc->realize = alpha_cpu_realizefn;
238
239 cc->class_by_name = alpha_cpu_class_by_name;
240 cc->has_work = alpha_cpu_has_work;
241 cc->do_interrupt = alpha_cpu_do_interrupt;
242 cc->cpu_exec_interrupt = alpha_cpu_exec_interrupt;
243 cc->dump_state = alpha_cpu_dump_state;
244 cc->set_pc = alpha_cpu_set_pc;
245 cc->gdb_read_register = alpha_cpu_gdb_read_register;
246 cc->gdb_write_register = alpha_cpu_gdb_write_register;
247#ifdef CONFIG_USER_ONLY
248 cc->handle_mmu_fault = alpha_cpu_handle_mmu_fault;
249#else
250 cc->do_transaction_failed = alpha_cpu_do_transaction_failed;
251 cc->do_unaligned_access = alpha_cpu_do_unaligned_access;
252 cc->get_phys_page_debug = alpha_cpu_get_phys_page_debug;
253 dc->vmsd = &vmstate_alpha_cpu;
254#endif
255 cc->disas_set_info = alpha_cpu_disas_set_info;
256 cc->tcg_initialize = alpha_translate_init;
257
258 cc->gdb_num_core_regs = 67;
259}
260
261#define DEFINE_ALPHA_CPU_TYPE(base_type, cpu_model, initfn) \
262 { \
263 .parent = base_type, \
264 .instance_init = initfn, \
265 .name = ALPHA_CPU_TYPE_NAME(cpu_model), \
266 }
267
268static const TypeInfo alpha_cpu_type_infos[] = {
269 {
270 .name = TYPE_ALPHA_CPU,
271 .parent = TYPE_CPU,
272 .instance_size = sizeof(AlphaCPU),
273 .instance_init = alpha_cpu_initfn,
274 .abstract = true,
275 .class_size = sizeof(AlphaCPUClass),
276 .class_init = alpha_cpu_class_init,
277 },
278 DEFINE_ALPHA_CPU_TYPE(TYPE_ALPHA_CPU, "ev4", ev4_cpu_initfn),
279 DEFINE_ALPHA_CPU_TYPE(TYPE_ALPHA_CPU, "ev5", ev5_cpu_initfn),
280 DEFINE_ALPHA_CPU_TYPE(ALPHA_CPU_TYPE_NAME("ev5"), "ev56", ev56_cpu_initfn),
281 DEFINE_ALPHA_CPU_TYPE(ALPHA_CPU_TYPE_NAME("ev56"), "pca56",
282 pca56_cpu_initfn),
283 DEFINE_ALPHA_CPU_TYPE(TYPE_ALPHA_CPU, "ev6", ev6_cpu_initfn),
284 DEFINE_ALPHA_CPU_TYPE(ALPHA_CPU_TYPE_NAME("ev6"), "ev67", ev67_cpu_initfn),
285 DEFINE_ALPHA_CPU_TYPE(ALPHA_CPU_TYPE_NAME("ev67"), "ev68", NULL),
286};
287
288DEFINE_TYPES(alpha_cpu_type_infos)
289
