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"
25 #include "tcg/debug-assert.h"
27 static inline void set_feature(CPUTriCoreState
*env
, int feature
)
29 env
->features
|= 1ULL << feature
;
32 static const gchar
*tricore_gdb_arch_name(CPUState
*cs
)
37 static void tricore_cpu_set_pc(CPUState
*cs
, vaddr value
)
39 TriCoreCPU
*cpu
= TRICORE_CPU(cs
);
40 CPUTriCoreState
*env
= &cpu
->env
;
42 env
->PC
= value
& ~(target_ulong
)1;
45 static vaddr
tricore_cpu_get_pc(CPUState
*cs
)
47 TriCoreCPU
*cpu
= TRICORE_CPU(cs
);
48 CPUTriCoreState
*env
= &cpu
->env
;
53 static void tricore_cpu_synchronize_from_tb(CPUState
*cs
,
54 const TranslationBlock
*tb
)
56 TriCoreCPU
*cpu
= TRICORE_CPU(cs
);
57 CPUTriCoreState
*env
= &cpu
->env
;
59 tcg_debug_assert(!(cs
->tcg_cflags
& CF_PCREL
));
63 static void tricore_restore_state_to_opc(CPUState
*cs
,
64 const TranslationBlock
*tb
,
67 TriCoreCPU
*cpu
= TRICORE_CPU(cs
);
68 CPUTriCoreState
*env
= &cpu
->env
;
73 static void tricore_cpu_reset_hold(Object
*obj
)
75 CPUState
*s
= CPU(obj
);
76 TriCoreCPU
*cpu
= TRICORE_CPU(s
);
77 TriCoreCPUClass
*tcc
= TRICORE_CPU_GET_CLASS(cpu
);
78 CPUTriCoreState
*env
= &cpu
->env
;
80 if (tcc
->parent_phases
.hold
) {
81 tcc
->parent_phases
.hold(obj
);
87 static bool tricore_cpu_has_work(CPUState
*cs
)
92 static void tricore_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
94 CPUState
*cs
= CPU(dev
);
95 TriCoreCPU
*cpu
= TRICORE_CPU(dev
);
96 TriCoreCPUClass
*tcc
= TRICORE_CPU_GET_CLASS(dev
);
97 CPUTriCoreState
*env
= &cpu
->env
;
98 Error
*local_err
= NULL
;
100 cpu_exec_realizefn(cs
, &local_err
);
101 if (local_err
!= NULL
) {
102 error_propagate(errp
, local_err
);
106 /* Some features automatically imply others */
107 if (tricore_has_feature(env
, TRICORE_FEATURE_162
)) {
108 set_feature(env
, TRICORE_FEATURE_161
);
111 if (tricore_has_feature(env
, TRICORE_FEATURE_161
)) {
112 set_feature(env
, TRICORE_FEATURE_16
);
115 if (tricore_has_feature(env
, TRICORE_FEATURE_16
)) {
116 set_feature(env
, TRICORE_FEATURE_131
);
118 if (tricore_has_feature(env
, TRICORE_FEATURE_131
)) {
119 set_feature(env
, TRICORE_FEATURE_13
);
124 tcc
->parent_realize(dev
, errp
);
127 static ObjectClass
*tricore_cpu_class_by_name(const char *cpu_model
)
132 typename
= g_strdup_printf(TRICORE_CPU_TYPE_NAME("%s"), cpu_model
);
133 oc
= object_class_by_name(typename
);
139 static void tc1796_initfn(Object
*obj
)
141 TriCoreCPU
*cpu
= TRICORE_CPU(obj
);
143 set_feature(&cpu
->env
, TRICORE_FEATURE_13
);
146 static void tc1797_initfn(Object
*obj
)
148 TriCoreCPU
*cpu
= TRICORE_CPU(obj
);
150 set_feature(&cpu
->env
, TRICORE_FEATURE_131
);
153 static void tc27x_initfn(Object
*obj
)
155 TriCoreCPU
*cpu
= TRICORE_CPU(obj
);
157 set_feature(&cpu
->env
, TRICORE_FEATURE_161
);
160 static void tc37x_initfn(Object
*obj
)
162 TriCoreCPU
*cpu
= TRICORE_CPU(obj
);
164 set_feature(&cpu
->env
, TRICORE_FEATURE_162
);
168 #include "hw/core/sysemu-cpu-ops.h"
170 static const struct SysemuCPUOps tricore_sysemu_ops
= {
171 .get_phys_page_debug
= tricore_cpu_get_phys_page_debug
,
174 #include "hw/core/tcg-cpu-ops.h"
176 static const struct TCGCPUOps tricore_tcg_ops
= {
177 .initialize
= tricore_tcg_init
,
178 .synchronize_from_tb
= tricore_cpu_synchronize_from_tb
,
179 .restore_state_to_opc
= tricore_restore_state_to_opc
,
180 .tlb_fill
= tricore_cpu_tlb_fill
,
183 static void tricore_cpu_class_init(ObjectClass
*c
, void *data
)
185 TriCoreCPUClass
*mcc
= TRICORE_CPU_CLASS(c
);
186 CPUClass
*cc
= CPU_CLASS(c
);
187 DeviceClass
*dc
= DEVICE_CLASS(c
);
188 ResettableClass
*rc
= RESETTABLE_CLASS(c
);
190 device_class_set_parent_realize(dc
, tricore_cpu_realizefn
,
191 &mcc
->parent_realize
);
193 resettable_class_set_parent_phases(rc
, NULL
, tricore_cpu_reset_hold
, NULL
,
194 &mcc
->parent_phases
);
195 cc
->class_by_name
= tricore_cpu_class_by_name
;
196 cc
->has_work
= tricore_cpu_has_work
;
198 cc
->gdb_read_register
= tricore_cpu_gdb_read_register
;
199 cc
->gdb_write_register
= tricore_cpu_gdb_write_register
;
200 cc
->gdb_num_core_regs
= 44;
201 cc
->gdb_arch_name
= tricore_gdb_arch_name
;
203 cc
->dump_state
= tricore_cpu_dump_state
;
204 cc
->set_pc
= tricore_cpu_set_pc
;
205 cc
->get_pc
= tricore_cpu_get_pc
;
206 cc
->sysemu_ops
= &tricore_sysemu_ops
;
207 cc
->tcg_ops
= &tricore_tcg_ops
;
210 #define DEFINE_TRICORE_CPU_TYPE(cpu_model, initfn) \
212 .parent = TYPE_TRICORE_CPU, \
213 .instance_init = initfn, \
214 .name = TRICORE_CPU_TYPE_NAME(cpu_model), \
217 static const TypeInfo tricore_cpu_type_infos
[] = {
219 .name
= TYPE_TRICORE_CPU
,
221 .instance_size
= sizeof(TriCoreCPU
),
222 .instance_align
= __alignof(TriCoreCPU
),
224 .class_size
= sizeof(TriCoreCPUClass
),
225 .class_init
= tricore_cpu_class_init
,
227 DEFINE_TRICORE_CPU_TYPE("tc1796", tc1796_initfn
),
228 DEFINE_TRICORE_CPU_TYPE("tc1797", tc1797_initfn
),
229 DEFINE_TRICORE_CPU_TYPE("tc27x", tc27x_initfn
),
230 DEFINE_TRICORE_CPU_TYPE("tc37x", tc37x_initfn
),
233 DEFINE_TYPES(tricore_cpu_type_infos
)