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 2.1 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"
22 #include "qemu/qemu-print.h"
24 #include "qemu-common.h"
26 static void openrisc_cpu_set_pc(CPUState
*cs
, vaddr value
)
28 OpenRISCCPU
*cpu
= OPENRISC_CPU(cs
);
34 static bool openrisc_cpu_has_work(CPUState
*cs
)
36 return cs
->interrupt_request
& (CPU_INTERRUPT_HARD
|
40 static void openrisc_disas_set_info(CPUState
*cpu
, disassemble_info
*info
)
42 info
->print_insn
= print_insn_or1k
;
45 /* CPUClass::reset() */
46 static void openrisc_cpu_reset(CPUState
*s
)
48 OpenRISCCPU
*cpu
= OPENRISC_CPU(s
);
49 OpenRISCCPUClass
*occ
= OPENRISC_CPU_GET_CLASS(cpu
);
53 memset(&cpu
->env
, 0, offsetof(CPUOpenRISCState
, end_reset_fields
));
56 cpu
->env
.sr
= SR_FO
| SR_SM
;
57 cpu
->env
.lock_addr
= -1;
58 s
->exception_index
= -1;
60 cpu
->env
.upr
= UPR_UP
| UPR_DMP
| UPR_IMP
| UPR_PICP
| UPR_TTP
|
62 cpu
->env
.dmmucfgr
= (DMMUCFGR_NTW
& (0 << 2))
63 | (DMMUCFGR_NTS
& (ctz32(TLB_SIZE
) << 2));
64 cpu
->env
.immucfgr
= (IMMUCFGR_NTW
& (0 << 2))
65 | (IMMUCFGR_NTS
& (ctz32(TLB_SIZE
) << 2));
67 #ifndef CONFIG_USER_ONLY
68 cpu
->env
.picmr
= 0x00000000;
69 cpu
->env
.picsr
= 0x00000000;
71 cpu
->env
.ttmr
= 0x00000000;
75 static void openrisc_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
77 CPUState
*cs
= CPU(dev
);
78 OpenRISCCPUClass
*occ
= OPENRISC_CPU_GET_CLASS(dev
);
79 Error
*local_err
= NULL
;
81 cpu_exec_realizefn(cs
, &local_err
);
82 if (local_err
!= NULL
) {
83 error_propagate(errp
, local_err
);
90 occ
->parent_realize(dev
, errp
);
93 static void openrisc_cpu_initfn(Object
*obj
)
95 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
97 cpu_set_cpustate_pointers(cpu
);
102 static ObjectClass
*openrisc_cpu_class_by_name(const char *cpu_model
)
107 typename
= g_strdup_printf(OPENRISC_CPU_TYPE_NAME("%s"), cpu_model
);
108 oc
= object_class_by_name(typename
);
110 if (oc
!= NULL
&& (!object_class_dynamic_cast(oc
, TYPE_OPENRISC_CPU
) ||
111 object_class_is_abstract(oc
))) {
117 static void or1200_initfn(Object
*obj
)
119 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
121 cpu
->env
.cpucfgr
= CPUCFGR_NSGF
| CPUCFGR_OB32S
| CPUCFGR_OF32S
|
125 static void openrisc_any_initfn(Object
*obj
)
127 OpenRISCCPU
*cpu
= OPENRISC_CPU(obj
);
129 cpu
->env
.cpucfgr
= CPUCFGR_NSGF
| CPUCFGR_OB32S
| CPUCFGR_EVBARP
;
132 static void openrisc_cpu_class_init(ObjectClass
*oc
, void *data
)
134 OpenRISCCPUClass
*occ
= OPENRISC_CPU_CLASS(oc
);
135 CPUClass
*cc
= CPU_CLASS(occ
);
136 DeviceClass
*dc
= DEVICE_CLASS(oc
);
138 device_class_set_parent_realize(dc
, openrisc_cpu_realizefn
,
139 &occ
->parent_realize
);
140 occ
->parent_reset
= cc
->reset
;
141 cc
->reset
= openrisc_cpu_reset
;
143 cc
->class_by_name
= openrisc_cpu_class_by_name
;
144 cc
->has_work
= openrisc_cpu_has_work
;
145 cc
->do_interrupt
= openrisc_cpu_do_interrupt
;
146 cc
->cpu_exec_interrupt
= openrisc_cpu_exec_interrupt
;
147 cc
->dump_state
= openrisc_cpu_dump_state
;
148 cc
->set_pc
= openrisc_cpu_set_pc
;
149 cc
->gdb_read_register
= openrisc_cpu_gdb_read_register
;
150 cc
->gdb_write_register
= openrisc_cpu_gdb_write_register
;
151 cc
->tlb_fill
= openrisc_cpu_tlb_fill
;
152 #ifndef CONFIG_USER_ONLY
153 cc
->get_phys_page_debug
= openrisc_cpu_get_phys_page_debug
;
154 dc
->vmsd
= &vmstate_openrisc_cpu
;
156 cc
->gdb_num_core_regs
= 32 + 3;
157 cc
->tcg_initialize
= openrisc_translate_init
;
158 cc
->disas_set_info
= openrisc_disas_set_info
;
161 /* Sort alphabetically by type name, except for "any". */
162 static gint
openrisc_cpu_list_compare(gconstpointer a
, gconstpointer b
)
164 ObjectClass
*class_a
= (ObjectClass
*)a
;
165 ObjectClass
*class_b
= (ObjectClass
*)b
;
166 const char *name_a
, *name_b
;
168 name_a
= object_class_get_name(class_a
);
169 name_b
= object_class_get_name(class_b
);
170 if (strcmp(name_a
, "any-" TYPE_OPENRISC_CPU
) == 0) {
172 } else if (strcmp(name_b
, "any-" TYPE_OPENRISC_CPU
) == 0) {
175 return strcmp(name_a
, name_b
);
179 static void openrisc_cpu_list_entry(gpointer data
, gpointer user_data
)
181 ObjectClass
*oc
= data
;
182 const char *typename
;
185 typename
= object_class_get_name(oc
);
186 name
= g_strndup(typename
,
187 strlen(typename
) - strlen("-" TYPE_OPENRISC_CPU
));
188 qemu_printf(" %s\n", name
);
192 void cpu_openrisc_list(void)
196 list
= object_class_get_list(TYPE_OPENRISC_CPU
, false);
197 list
= g_slist_sort(list
, openrisc_cpu_list_compare
);
198 qemu_printf("Available CPUs:\n");
199 g_slist_foreach(list
, openrisc_cpu_list_entry
, NULL
);
203 #define DEFINE_OPENRISC_CPU_TYPE(cpu_model, initfn) \
205 .parent = TYPE_OPENRISC_CPU, \
206 .instance_init = initfn, \
207 .name = OPENRISC_CPU_TYPE_NAME(cpu_model), \
210 static const TypeInfo openrisc_cpus_type_infos
[] = {
211 { /* base class should be registered first */
212 .name
= TYPE_OPENRISC_CPU
,
214 .instance_size
= sizeof(OpenRISCCPU
),
215 .instance_init
= openrisc_cpu_initfn
,
217 .class_size
= sizeof(OpenRISCCPUClass
),
218 .class_init
= openrisc_cpu_class_init
,
220 DEFINE_OPENRISC_CPU_TYPE("or1200", or1200_initfn
),
221 DEFINE_OPENRISC_CPU_TYPE("any", openrisc_any_initfn
),
224 DEFINE_TYPES(openrisc_cpus_type_infos
)