tests: virtio-9p: rename PCI configuration test
[qemu.git] / target / tricore / cpu.c
1 /*
2 * TriCore emulation for qemu: main translation routines.
3 *
4 * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
22 #include "cpu.h"
23 #include "qemu-common.h"
24 #include "exec/exec-all.h"
25
26 static inline void set_feature(CPUTriCoreState *env, int feature)
27 {
28 env->features |= 1ULL << feature;
29 }
30
31 static void tricore_cpu_set_pc(CPUState *cs, vaddr value)
32 {
33 TriCoreCPU *cpu = TRICORE_CPU(cs);
34 CPUTriCoreState *env = &cpu->env;
35
36 env->PC = value & ~(target_ulong)1;
37 }
38
39 static void tricore_cpu_synchronize_from_tb(CPUState *cs,
40 TranslationBlock *tb)
41 {
42 TriCoreCPU *cpu = TRICORE_CPU(cs);
43 CPUTriCoreState *env = &cpu->env;
44
45 env->PC = tb->pc;
46 }
47
48 static void tricore_cpu_reset(CPUState *s)
49 {
50 TriCoreCPU *cpu = TRICORE_CPU(s);
51 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(cpu);
52 CPUTriCoreState *env = &cpu->env;
53
54 tcc->parent_reset(s);
55
56 tlb_flush(s, 1);
57
58 cpu_state_reset(env);
59 }
60
61 static bool tricore_cpu_has_work(CPUState *cs)
62 {
63 return true;
64 }
65
66 static void tricore_cpu_realizefn(DeviceState *dev, Error **errp)
67 {
68 CPUState *cs = CPU(dev);
69 TriCoreCPU *cpu = TRICORE_CPU(dev);
70 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(dev);
71 CPUTriCoreState *env = &cpu->env;
72 Error *local_err = NULL;
73
74 cpu_exec_realizefn(cs, &local_err);
75 if (local_err != NULL) {
76 error_propagate(errp, local_err);
77 return;
78 }
79
80 /* Some features automatically imply others */
81 if (tricore_feature(env, TRICORE_FEATURE_161)) {
82 set_feature(env, TRICORE_FEATURE_16);
83 }
84
85 if (tricore_feature(env, TRICORE_FEATURE_16)) {
86 set_feature(env, TRICORE_FEATURE_131);
87 }
88 if (tricore_feature(env, TRICORE_FEATURE_131)) {
89 set_feature(env, TRICORE_FEATURE_13);
90 }
91 cpu_reset(cs);
92 qemu_init_vcpu(cs);
93
94 tcc->parent_realize(dev, errp);
95 }
96
97
98 static void tricore_cpu_initfn(Object *obj)
99 {
100 CPUState *cs = CPU(obj);
101 TriCoreCPU *cpu = TRICORE_CPU(obj);
102 CPUTriCoreState *env = &cpu->env;
103
104 cs->env_ptr = env;
105
106 if (tcg_enabled()) {
107 tricore_tcg_init();
108 }
109 }
110
111 static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model)
112 {
113 ObjectClass *oc;
114 char *typename;
115
116 if (!cpu_model) {
117 return NULL;
118 }
119
120 typename = g_strdup_printf("%s-" TYPE_TRICORE_CPU, cpu_model);
121 oc = object_class_by_name(typename);
122 g_free(typename);
123 if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU) ||
124 object_class_is_abstract(oc)) {
125 return NULL;
126 }
127 return oc;
128 }
129
130 static void tc1796_initfn(Object *obj)
131 {
132 TriCoreCPU *cpu = TRICORE_CPU(obj);
133
134 set_feature(&cpu->env, TRICORE_FEATURE_13);
135 }
136
137 static void tc1797_initfn(Object *obj)
138 {
139 TriCoreCPU *cpu = TRICORE_CPU(obj);
140
141 set_feature(&cpu->env, TRICORE_FEATURE_131);
142 }
143
144 static void tc27x_initfn(Object *obj)
145 {
146 TriCoreCPU *cpu = TRICORE_CPU(obj);
147
148 set_feature(&cpu->env, TRICORE_FEATURE_161);
149 }
150
151 typedef struct TriCoreCPUInfo {
152 const char *name;
153 void (*initfn)(Object *obj);
154 void (*class_init)(ObjectClass *oc, void *data);
155 } TriCoreCPUInfo;
156
157 static const TriCoreCPUInfo tricore_cpus[] = {
158 { .name = "tc1796", .initfn = tc1796_initfn },
159 { .name = "tc1797", .initfn = tc1797_initfn },
160 { .name = "tc27x", .initfn = tc27x_initfn },
161 { .name = NULL }
162 };
163
164 static void tricore_cpu_class_init(ObjectClass *c, void *data)
165 {
166 TriCoreCPUClass *mcc = TRICORE_CPU_CLASS(c);
167 CPUClass *cc = CPU_CLASS(c);
168 DeviceClass *dc = DEVICE_CLASS(c);
169
170 mcc->parent_realize = dc->realize;
171 dc->realize = tricore_cpu_realizefn;
172
173 mcc->parent_reset = cc->reset;
174 cc->reset = tricore_cpu_reset;
175 cc->class_by_name = tricore_cpu_class_by_name;
176 cc->has_work = tricore_cpu_has_work;
177
178 cc->dump_state = tricore_cpu_dump_state;
179 cc->set_pc = tricore_cpu_set_pc;
180 cc->synchronize_from_tb = tricore_cpu_synchronize_from_tb;
181 }
182
183 static void cpu_register(const TriCoreCPUInfo *info)
184 {
185 TypeInfo type_info = {
186 .parent = TYPE_TRICORE_CPU,
187 .instance_size = sizeof(TriCoreCPU),
188 .instance_init = info->initfn,
189 .class_size = sizeof(TriCoreCPUClass),
190 .class_init = info->class_init,
191 };
192
193 type_info.name = g_strdup_printf("%s-" TYPE_TRICORE_CPU, info->name);
194 type_register(&type_info);
195 g_free((void *)type_info.name);
196 }
197
198 static const TypeInfo tricore_cpu_type_info = {
199 .name = TYPE_TRICORE_CPU,
200 .parent = TYPE_CPU,
201 .instance_size = sizeof(TriCoreCPU),
202 .instance_init = tricore_cpu_initfn,
203 .abstract = true,
204 .class_size = sizeof(TriCoreCPUClass),
205 .class_init = tricore_cpu_class_init,
206 };
207
208 static void tricore_cpu_register_types(void)
209 {
210 const TriCoreCPUInfo *info = tricore_cpus;
211
212 type_register_static(&tricore_cpu_type_info);
213
214 while (info->name) {
215 cpu_register(info);
216 info++;
217 }
218 }
219
220 type_init(tricore_cpu_register_types)