2 * TriCore emulation for qemu: main translation routines.
4 * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
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.
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.
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/>.
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
23 #include "qemu-common.h"
24 #include "exec/exec-all.h"
26 static inline void set_feature(CPUTriCoreState *env, int feature)
28 env->features |= 1ULL << feature;
31 static void tricore_cpu_set_pc(CPUState *cs, vaddr value)
33 TriCoreCPU *cpu = TRICORE_CPU(cs);
34 CPUTriCoreState *env = &cpu->env;
36 env->PC = value & ~(target_ulong)1;
39 static void tricore_cpu_synchronize_from_tb(CPUState *cs,
42 TriCoreCPU *cpu = TRICORE_CPU(cs);
43 CPUTriCoreState *env = &cpu->env;
48 static void tricore_cpu_reset(CPUState *s)
50 TriCoreCPU *cpu = TRICORE_CPU(s);
51 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(cpu);
52 CPUTriCoreState *env = &cpu->env;
59 static bool tricore_cpu_has_work(CPUState *cs)
64 static void tricore_cpu_realizefn(DeviceState *dev, Error **errp)
66 CPUState *cs = CPU(dev);
67 TriCoreCPU *cpu = TRICORE_CPU(dev);
68 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(dev);
69 CPUTriCoreState *env = &cpu->env;
70 Error *local_err = NULL;
72 cpu_exec_realizefn(cs, &local_err);
73 if (local_err != NULL) {
74 error_propagate(errp, local_err);
78 /* Some features automatically imply others */
79 if (tricore_feature(env, TRICORE_FEATURE_161)) {
80 set_feature(env, TRICORE_FEATURE_16);
83 if (tricore_feature(env, TRICORE_FEATURE_16)) {
84 set_feature(env, TRICORE_FEATURE_131);
86 if (tricore_feature(env, TRICORE_FEATURE_131)) {
87 set_feature(env, TRICORE_FEATURE_13);
92 tcc->parent_realize(dev, errp);
96 static void tricore_cpu_initfn(Object *obj)
98 CPUState *cs = CPU(obj);
99 TriCoreCPU *cpu = TRICORE_CPU(obj);
100 CPUTriCoreState *env = &cpu->env;
109 static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model)
118 typename = g_strdup_printf("%s-" TYPE_TRICORE_CPU, cpu_model);
119 oc = object_class_by_name(typename);
121 if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU) ||
122 object_class_is_abstract(oc)) {
128 static void tc1796_initfn(Object *obj)
130 TriCoreCPU *cpu = TRICORE_CPU(obj);
132 set_feature(&cpu->env, TRICORE_FEATURE_13);
135 static void tc1797_initfn(Object *obj)
137 TriCoreCPU *cpu = TRICORE_CPU(obj);
139 set_feature(&cpu->env, TRICORE_FEATURE_131);
142 static void tc27x_initfn(Object *obj)
144 TriCoreCPU *cpu = TRICORE_CPU(obj);
146 set_feature(&cpu->env, TRICORE_FEATURE_161);
149 typedef struct TriCoreCPUInfo {
151 void (*initfn)(Object *obj);
152 void (*class_init)(ObjectClass *oc, void *data);
155 static const TriCoreCPUInfo tricore_cpus[] = {
156 { .name = "tc1796", .initfn = tc1796_initfn },
157 { .name = "tc1797", .initfn = tc1797_initfn },
158 { .name = "tc27x", .initfn = tc27x_initfn },
162 static void tricore_cpu_class_init(ObjectClass *c, void *data)
164 TriCoreCPUClass *mcc = TRICORE_CPU_CLASS(c);
165 CPUClass *cc = CPU_CLASS(c);
166 DeviceClass *dc = DEVICE_CLASS(c);
168 mcc->parent_realize = dc->realize;
169 dc->realize = tricore_cpu_realizefn;
171 mcc->parent_reset = cc->reset;
172 cc->reset = tricore_cpu_reset;
173 cc->class_by_name = tricore_cpu_class_by_name;
174 cc->has_work = tricore_cpu_has_work;
176 cc->dump_state = tricore_cpu_dump_state;
177 cc->set_pc = tricore_cpu_set_pc;
178 cc->synchronize_from_tb = tricore_cpu_synchronize_from_tb;
181 static void cpu_register(const TriCoreCPUInfo *info)
183 TypeInfo type_info = {
184 .parent = TYPE_TRICORE_CPU,
185 .instance_size = sizeof(TriCoreCPU),
186 .instance_init = info->initfn,
187 .class_size = sizeof(TriCoreCPUClass),
188 .class_init = info->class_init,
191 type_info.name = g_strdup_printf("%s-" TYPE_TRICORE_CPU, info->name);
192 type_register(&type_info);
193 g_free((void *)type_info.name);
196 static const TypeInfo tricore_cpu_type_info = {
197 .name = TYPE_TRICORE_CPU,
199 .instance_size = sizeof(TriCoreCPU),
200 .instance_init = tricore_cpu_initfn,
202 .class_size = sizeof(TriCoreCPUClass),
203 .class_init = tricore_cpu_class_init,
206 static void tricore_cpu_register_types(void)
208 const TriCoreCPUInfo *info = tricore_cpus;
210 type_register_static(&tricore_cpu_type_info);
218 type_init(tricore_cpu_register_types)