4 * Copyright (c) 2012 Jia Liu <proljc@gmail.com>
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/>.
21 #include "qemu-common.h"
23 static void openrisc_cpu_set_pc(CPUState
*cs
, vaddr value
)
25 OpenRISCCPU
*cpu
= OPENRISC_CPU(cs
);
30 static bool openrisc_cpu_has_work(CPUState
*cs
)
32 return cs
->interrupt_request
& (CPU_INTERRUPT_HARD
|
36 /* CPUClass::reset() */
37 static void openrisc_cpu_reset(CPUState
*s
)
39 OpenRISCCPU
*cpu
= OPENRISC_CPU(s
);
40 OpenRISCCPUClass
*occ
= OPENRISC_CPU_GET_CLASS(cpu
);
44 memset(&cpu
->env
, 0, offsetof(CPUOpenRISCState
, breakpoints
));
46 tlb_flush(&cpu
->env
, 1);
47 /*tb_flush(&cpu->env); FIXME: Do we need it? */
50 cpu
->env
.sr
= SR_FO
| SR_SM
;
51 cpu
->env
.exception_index
= -1;
53 cpu
->env
.upr
= UPR_UP
| UPR_DMP
| UPR_IMP
| UPR_PICP
| UPR_TTP
;
54 cpu
->env
.cpucfgr
= CPUCFGR_OB32S
| CPUCFGR_OF32S
;
55 cpu
->env
.dmmucfgr
= (DMMUCFGR_NTW
& (0 << 2)) | (DMMUCFGR_NTS
& (6 << 2));
56 cpu
->env
.immucfgr
= (IMMUCFGR_NTW
& (0 << 2)) | (IMMUCFGR_NTS
& (6 << 2));
58 #ifndef CONFIG_USER_ONLY
59 cpu
->env
.picmr
= 0x00000000;
60 cpu
->env
.picsr
= 0x00000000;
62 cpu
->env
.ttmr
= 0x00000000;
63 cpu
->env
.ttcr
= 0x00000000;
67 static inline void set_feature(OpenRISCCPU
*cpu
, int feature
)
69 cpu
->feature
|= feature
;
70 cpu
->env
.cpucfgr
= cpu
->feature
;
73 static void openrisc_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
75 CPUState
*cs
= CPU(dev
);
76 OpenRISCCPUClass
*occ
= OPENRISC_CPU_GET_CLASS(dev
);
81 occ
->parent_realize(dev
, errp
);
84 static void openrisc_cpu_initfn(Object
*obj
)
86 CPUState
*cs
= CPU(obj
);
87 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
90 cs
->env_ptr
= &cpu
->env
;
91 cpu_exec_init(&cpu
->env
);
93 #ifndef CONFIG_USER_ONLY
94 cpu_openrisc_mmu_init(cpu
);
97 if (tcg_enabled() && !inited
) {
99 openrisc_translate_init();
105 static ObjectClass
*openrisc_cpu_class_by_name(const char *cpu_model
)
110 if (cpu_model
== NULL
) {
114 typename
= g_strdup_printf("%s-" TYPE_OPENRISC_CPU
, cpu_model
);
115 oc
= object_class_by_name(typename
);
117 if (oc
!= NULL
&& (!object_class_dynamic_cast(oc
, TYPE_OPENRISC_CPU
) ||
118 object_class_is_abstract(oc
))) {
124 static void or1200_initfn(Object
*obj
)
126 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
128 set_feature(cpu
, OPENRISC_FEATURE_OB32S
);
129 set_feature(cpu
, OPENRISC_FEATURE_OF32S
);
132 static void openrisc_any_initfn(Object
*obj
)
134 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
136 set_feature(cpu
, OPENRISC_FEATURE_OB32S
);
139 typedef struct OpenRISCCPUInfo
{
141 void (*initfn
)(Object
*obj
);
144 static const OpenRISCCPUInfo openrisc_cpus
[] = {
145 { .name
= "or1200", .initfn
= or1200_initfn
},
146 { .name
= "any", .initfn
= openrisc_any_initfn
},
149 static void openrisc_cpu_class_init(ObjectClass
*oc
, void *data
)
151 OpenRISCCPUClass
*occ
= OPENRISC_CPU_CLASS(oc
);
152 CPUClass
*cc
= CPU_CLASS(occ
);
153 DeviceClass
*dc
= DEVICE_CLASS(oc
);
155 occ
->parent_realize
= dc
->realize
;
156 dc
->realize
= openrisc_cpu_realizefn
;
158 occ
->parent_reset
= cc
->reset
;
159 cc
->reset
= openrisc_cpu_reset
;
161 cc
->class_by_name
= openrisc_cpu_class_by_name
;
162 cc
->has_work
= openrisc_cpu_has_work
;
163 cc
->do_interrupt
= openrisc_cpu_do_interrupt
;
164 cc
->dump_state
= openrisc_cpu_dump_state
;
165 cc
->set_pc
= openrisc_cpu_set_pc
;
166 cc
->gdb_read_register
= openrisc_cpu_gdb_read_register
;
167 cc
->gdb_write_register
= openrisc_cpu_gdb_write_register
;
168 #ifndef CONFIG_USER_ONLY
169 cc
->get_phys_page_debug
= openrisc_cpu_get_phys_page_debug
;
170 dc
->vmsd
= &vmstate_openrisc_cpu
;
172 cc
->gdb_num_core_regs
= 32 + 3;
175 static void cpu_register(const OpenRISCCPUInfo
*info
)
177 TypeInfo type_info
= {
178 .parent
= TYPE_OPENRISC_CPU
,
179 .instance_size
= sizeof(OpenRISCCPU
),
180 .instance_init
= info
->initfn
,
181 .class_size
= sizeof(OpenRISCCPUClass
),
184 type_info
.name
= g_strdup_printf("%s-" TYPE_OPENRISC_CPU
, info
->name
);
185 type_register(&type_info
);
186 g_free((void *)type_info
.name
);
189 static const TypeInfo openrisc_cpu_type_info
= {
190 .name
= TYPE_OPENRISC_CPU
,
192 .instance_size
= sizeof(OpenRISCCPU
),
193 .instance_init
= openrisc_cpu_initfn
,
195 .class_size
= sizeof(OpenRISCCPUClass
),
196 .class_init
= openrisc_cpu_class_init
,
199 static void openrisc_cpu_register_types(void)
203 type_register_static(&openrisc_cpu_type_info
);
204 for (i
= 0; i
< ARRAY_SIZE(openrisc_cpus
); i
++) {
205 cpu_register(&openrisc_cpus
[i
]);
209 OpenRISCCPU
*cpu_openrisc_init(const char *cpu_model
)
211 return OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU
, cpu_model
));
214 /* Sort alphabetically by type name, except for "any". */
215 static gint
openrisc_cpu_list_compare(gconstpointer a
, gconstpointer b
)
217 ObjectClass
*class_a
= (ObjectClass
*)a
;
218 ObjectClass
*class_b
= (ObjectClass
*)b
;
219 const char *name_a
, *name_b
;
221 name_a
= object_class_get_name(class_a
);
222 name_b
= object_class_get_name(class_b
);
223 if (strcmp(name_a
, "any-" TYPE_OPENRISC_CPU
) == 0) {
225 } else if (strcmp(name_b
, "any-" TYPE_OPENRISC_CPU
) == 0) {
228 return strcmp(name_a
, name_b
);
232 static void openrisc_cpu_list_entry(gpointer data
, gpointer user_data
)
234 ObjectClass
*oc
= data
;
235 CPUListState
*s
= user_data
;
236 const char *typename
;
239 typename
= object_class_get_name(oc
);
240 name
= g_strndup(typename
,
241 strlen(typename
) - strlen("-" TYPE_OPENRISC_CPU
));
242 (*s
->cpu_fprintf
)(s
->file
, " %s\n",
247 void cpu_openrisc_list(FILE *f
, fprintf_function cpu_fprintf
)
251 .cpu_fprintf
= cpu_fprintf
,
255 list
= object_class_get_list(TYPE_OPENRISC_CPU
, false);
256 list
= g_slist_sort(list
, openrisc_cpu_list_compare
);
257 (*cpu_fprintf
)(f
, "Available CPUs:\n");
258 g_slist_foreach(list
, openrisc_cpu_list_entry
, &s
);
262 type_init(openrisc_cpu_register_types
)