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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#include "qemu/error-report.h"
26
27static hwaddr tricore_cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
28 MemTxAttrs *attrs)
29{
30 error_report("function cpu_get_phys_page_attrs_debug not "
31 "implemented, aborting");
32 return -1;
33}
34
35static inline void set_feature(CPUTriCoreState *env, int feature)
36{
37 env->features |= 1ULL << feature;
38}
39
40static void tricore_cpu_set_pc(CPUState *cs, vaddr value)
41{
42 TriCoreCPU *cpu = TRICORE_CPU(cs);
43 CPUTriCoreState *env = &cpu->env;
44
45 env->PC = value & ~(target_ulong)1;
46}
47
48static void tricore_cpu_synchronize_from_tb(CPUState *cs,
49 TranslationBlock *tb)
50{
51 TriCoreCPU *cpu = TRICORE_CPU(cs);
52 CPUTriCoreState *env = &cpu->env;
53
54 env->PC = tb->pc;
55}
56
57static void tricore_cpu_reset(CPUState *s)
58{
59 TriCoreCPU *cpu = TRICORE_CPU(s);
60 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(cpu);
61 CPUTriCoreState *env = &cpu->env;
62
63 tcc->parent_reset(s);
64
65 cpu_state_reset(env);
66}
67
68static bool tricore_cpu_has_work(CPUState *cs)
69{
70 return true;
71}
72
73static void tricore_cpu_realizefn(DeviceState *dev, Error **errp)
74{
75 CPUState *cs = CPU(dev);
76 TriCoreCPU *cpu = TRICORE_CPU(dev);
77 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(dev);
78 CPUTriCoreState *env = &cpu->env;
79 Error *local_err = NULL;
80
81 cpu_exec_realizefn(cs, &local_err);
82 if (local_err != NULL) {
83 error_propagate(errp, local_err);
84 return;
85 }
86
87
88 if (tricore_feature(env, TRICORE_FEATURE_161)) {
89 set_feature(env, TRICORE_FEATURE_16);
90 }
91
92 if (tricore_feature(env, TRICORE_FEATURE_16)) {
93 set_feature(env, TRICORE_FEATURE_131);
94 }
95 if (tricore_feature(env, TRICORE_FEATURE_131)) {
96 set_feature(env, TRICORE_FEATURE_13);
97 }
98 cpu_reset(cs);
99 qemu_init_vcpu(cs);
100
101 tcc->parent_realize(dev, errp);
102}
103
104
105static void tricore_cpu_initfn(Object *obj)
106{
107 CPUState *cs = CPU(obj);
108 TriCoreCPU *cpu = TRICORE_CPU(obj);
109 CPUTriCoreState *env = &cpu->env;
110
111 cs->env_ptr = env;
112
113 if (tcg_enabled()) {
114 tricore_tcg_init();
115 }
116}
117
118static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model)
119{
120 ObjectClass *oc;
121 char *typename;
122
123 if (!cpu_model) {
124 return NULL;
125 }
126
127 typename = g_strdup_printf("%s-" TYPE_TRICORE_CPU, cpu_model);
128 oc = object_class_by_name(typename);
129 g_free(typename);
130 if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU) ||
131 object_class_is_abstract(oc)) {
132 return NULL;
133 }
134 return oc;
135}
136
137static void tc1796_initfn(Object *obj)
138{
139 TriCoreCPU *cpu = TRICORE_CPU(obj);
140
141 set_feature(&cpu->env, TRICORE_FEATURE_13);
142}
143
144static void tc1797_initfn(Object *obj)
145{
146 TriCoreCPU *cpu = TRICORE_CPU(obj);
147
148 set_feature(&cpu->env, TRICORE_FEATURE_131);
149}
150
151static void tc27x_initfn(Object *obj)
152{
153 TriCoreCPU *cpu = TRICORE_CPU(obj);
154
155 set_feature(&cpu->env, TRICORE_FEATURE_161);
156}
157
158typedef struct TriCoreCPUInfo {
159 const char *name;
160 void (*initfn)(Object *obj);
161 void (*class_init)(ObjectClass *oc, void *data);
162} TriCoreCPUInfo;
163
164static const TriCoreCPUInfo tricore_cpus[] = {
165 { .name = "tc1796", .initfn = tc1796_initfn },
166 { .name = "tc1797", .initfn = tc1797_initfn },
167 { .name = "tc27x", .initfn = tc27x_initfn },
168 { .name = NULL }
169};
170
171static void tricore_cpu_class_init(ObjectClass *c, void *data)
172{
173 TriCoreCPUClass *mcc = TRICORE_CPU_CLASS(c);
174 CPUClass *cc = CPU_CLASS(c);
175 DeviceClass *dc = DEVICE_CLASS(c);
176
177 mcc->parent_realize = dc->realize;
178 dc->realize = tricore_cpu_realizefn;
179
180 mcc->parent_reset = cc->reset;
181 cc->reset = tricore_cpu_reset;
182 cc->class_by_name = tricore_cpu_class_by_name;
183 cc->has_work = tricore_cpu_has_work;
184
185 cc->dump_state = tricore_cpu_dump_state;
186 cc->set_pc = tricore_cpu_set_pc;
187 cc->synchronize_from_tb = tricore_cpu_synchronize_from_tb;
188 cc->get_phys_page_attrs_debug = tricore_cpu_get_phys_page_attrs_debug;
189}
190
191static void cpu_register(const TriCoreCPUInfo *info)
192{
193 TypeInfo type_info = {
194 .parent = TYPE_TRICORE_CPU,
195 .instance_size = sizeof(TriCoreCPU),
196 .instance_init = info->initfn,
197 .class_size = sizeof(TriCoreCPUClass),
198 .class_init = info->class_init,
199 };
200
201 type_info.name = g_strdup_printf("%s-" TYPE_TRICORE_CPU, info->name);
202 type_register(&type_info);
203 g_free((void *)type_info.name);
204}
205
206static const TypeInfo tricore_cpu_type_info = {
207 .name = TYPE_TRICORE_CPU,
208 .parent = TYPE_CPU,
209 .instance_size = sizeof(TriCoreCPU),
210 .instance_init = tricore_cpu_initfn,
211 .abstract = true,
212 .class_size = sizeof(TriCoreCPUClass),
213 .class_init = tricore_cpu_class_init,
214};
215
216static void tricore_cpu_register_types(void)
217{
218 const TriCoreCPUInfo *info = tricore_cpus;
219
220 type_register_static(&tricore_cpu_type_info);
221
222 while (info->name) {
223 cpu_register(info);
224 info++;
225 }
226}
227
228type_init(tricore_cpu_register_types)
229