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 2.1 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 "exec/exec-all.h"
24 #include "qemu/error-report.h"
26 static inline void set_feature(CPUTriCoreState *env, int feature)
28 env->features |= 1ULL << feature;
31 static gchar *tricore_gdb_arch_name(CPUState *cs)
33 return g_strdup("tricore");
36 static void tricore_cpu_set_pc(CPUState *cs, vaddr value)
38 TriCoreCPU *cpu = TRICORE_CPU(cs);
39 CPUTriCoreState *env = &cpu->env;
41 env->PC = value & ~(target_ulong)1;
44 static vaddr tricore_cpu_get_pc(CPUState *cs)
46 TriCoreCPU *cpu = TRICORE_CPU(cs);
47 CPUTriCoreState *env = &cpu->env;
52 static void tricore_cpu_synchronize_from_tb(CPUState *cs,
53 const TranslationBlock *tb)
55 TriCoreCPU *cpu = TRICORE_CPU(cs);
56 CPUTriCoreState *env = &cpu->env;
61 static void tricore_restore_state_to_opc(CPUState *cs,
62 const TranslationBlock *tb,
65 TriCoreCPU *cpu = TRICORE_CPU(cs);
66 CPUTriCoreState *env = &cpu->env;
71 static void tricore_cpu_reset_hold(Object *obj)
73 CPUState *s = CPU(obj);
74 TriCoreCPU *cpu = TRICORE_CPU(s);
75 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(cpu);
76 CPUTriCoreState *env = &cpu->env;
78 if (tcc->parent_phases.hold) {
79 tcc->parent_phases.hold(obj);
85 static bool tricore_cpu_has_work(CPUState *cs)
90 static void tricore_cpu_realizefn(DeviceState *dev, Error **errp)
92 CPUState *cs = CPU(dev);
93 TriCoreCPU *cpu = TRICORE_CPU(dev);
94 TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(dev);
95 CPUTriCoreState *env = &cpu->env;
96 Error *local_err = NULL;
98 cpu_exec_realizefn(cs, &local_err);
99 if (local_err != NULL) {
100 error_propagate(errp, local_err);
104 /* Some features automatically imply others */
105 if (tricore_feature(env, TRICORE_FEATURE_161)) {
106 set_feature(env, TRICORE_FEATURE_16);
109 if (tricore_feature(env, TRICORE_FEATURE_16)) {
110 set_feature(env, TRICORE_FEATURE_131);
112 if (tricore_feature(env, TRICORE_FEATURE_131)) {
113 set_feature(env, TRICORE_FEATURE_13);
118 tcc->parent_realize(dev, errp);
122 static void tricore_cpu_initfn(Object *obj)
124 TriCoreCPU *cpu = TRICORE_CPU(obj);
126 cpu_set_cpustate_pointers(cpu);
129 static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model)
134 typename = g_strdup_printf(TRICORE_CPU_TYPE_NAME("%s"), cpu_model);
135 oc = object_class_by_name(typename);
137 if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU) ||
138 object_class_is_abstract(oc)) {
144 static void tc1796_initfn(Object *obj)
146 TriCoreCPU *cpu = TRICORE_CPU(obj);
148 set_feature(&cpu->env, TRICORE_FEATURE_13);
151 static void tc1797_initfn(Object *obj)
153 TriCoreCPU *cpu = TRICORE_CPU(obj);
155 set_feature(&cpu->env, TRICORE_FEATURE_131);
158 static void tc27x_initfn(Object *obj)
160 TriCoreCPU *cpu = TRICORE_CPU(obj);
162 set_feature(&cpu->env, TRICORE_FEATURE_161);
165 #include "hw/core/sysemu-cpu-ops.h"
167 static const struct SysemuCPUOps tricore_sysemu_ops = {
168 .get_phys_page_debug = tricore_cpu_get_phys_page_debug,
171 #include "hw/core/tcg-cpu-ops.h"
173 static const struct TCGCPUOps tricore_tcg_ops = {
174 .initialize = tricore_tcg_init,
175 .synchronize_from_tb = tricore_cpu_synchronize_from_tb,
176 .restore_state_to_opc = tricore_restore_state_to_opc,
177 .tlb_fill = tricore_cpu_tlb_fill,
180 static void tricore_cpu_class_init(ObjectClass *c, void *data)
182 TriCoreCPUClass *mcc = TRICORE_CPU_CLASS(c);
183 CPUClass *cc = CPU_CLASS(c);
184 DeviceClass *dc = DEVICE_CLASS(c);
185 ResettableClass *rc = RESETTABLE_CLASS(c);
187 device_class_set_parent_realize(dc, tricore_cpu_realizefn,
188 &mcc->parent_realize);
190 resettable_class_set_parent_phases(rc, NULL, tricore_cpu_reset_hold, NULL,
191 &mcc->parent_phases);
192 cc->class_by_name = tricore_cpu_class_by_name;
193 cc->has_work = tricore_cpu_has_work;
195 cc->gdb_read_register = tricore_cpu_gdb_read_register;
196 cc->gdb_write_register = tricore_cpu_gdb_write_register;
197 cc->gdb_num_core_regs = 44;
198 cc->gdb_arch_name = tricore_gdb_arch_name;
200 cc->dump_state = tricore_cpu_dump_state;
201 cc->set_pc = tricore_cpu_set_pc;
202 cc->get_pc = tricore_cpu_get_pc;
203 cc->sysemu_ops = &tricore_sysemu_ops;
204 cc->tcg_ops = &tricore_tcg_ops;
207 #define DEFINE_TRICORE_CPU_TYPE(cpu_model, initfn) \
209 .parent = TYPE_TRICORE_CPU, \
210 .instance_init = initfn, \
211 .name = TRICORE_CPU_TYPE_NAME(cpu_model), \
214 static const TypeInfo tricore_cpu_type_infos[] = {
216 .name = TYPE_TRICORE_CPU,
218 .instance_size = sizeof(TriCoreCPU),
219 .instance_init = tricore_cpu_initfn,
221 .class_size = sizeof(TriCoreCPUClass),
222 .class_init = tricore_cpu_class_init,
224 DEFINE_TRICORE_CPU_TYPE("tc1796", tc1796_initfn),
225 DEFINE_TRICORE_CPU_TYPE("tc1797", tc1797_initfn),
226 DEFINE_TRICORE_CPU_TYPE("tc27x", tc27x_initfn),
229 DEFINE_TYPES(tricore_cpu_type_infos)