cputlb: Change tlb_flush() argument to CPUState
[qemu.git] / target-unicore32 / cpu.c
1 /*
2 * QEMU UniCore32 CPU
3 *
4 * Copyright (c) 2010-2012 Guan Xuetao
5 * Copyright (c) 2012 SUSE LINUX Products GmbH
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * Contributions from 2012-04-01 on are considered under GPL version 2,
12 * or (at your option) any later version.
13 */
14
15 #include "cpu.h"
16 #include "qemu-common.h"
17 #include "migration/vmstate.h"
18
19 static void uc32_cpu_set_pc(CPUState *cs, vaddr value)
20 {
21 UniCore32CPU *cpu = UNICORE32_CPU(cs);
22
23 cpu->env.regs[31] = value;
24 }
25
26 static bool uc32_cpu_has_work(CPUState *cs)
27 {
28 return cs->interrupt_request &
29 (CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB);
30 }
31
32 static inline void set_feature(CPUUniCore32State *env, int feature)
33 {
34 env->features |= feature;
35 }
36
37 /* CPU models */
38
39 static ObjectClass *uc32_cpu_class_by_name(const char *cpu_model)
40 {
41 ObjectClass *oc;
42 char *typename;
43
44 if (cpu_model == NULL) {
45 return NULL;
46 }
47
48 typename = g_strdup_printf("%s-" TYPE_UNICORE32_CPU, cpu_model);
49 oc = object_class_by_name(typename);
50 g_free(typename);
51 if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_UNICORE32_CPU) ||
52 object_class_is_abstract(oc))) {
53 oc = NULL;
54 }
55 return oc;
56 }
57
58 typedef struct UniCore32CPUInfo {
59 const char *name;
60 void (*instance_init)(Object *obj);
61 } UniCore32CPUInfo;
62
63 static void unicore_ii_cpu_initfn(Object *obj)
64 {
65 UniCore32CPU *cpu = UNICORE32_CPU(obj);
66 CPUUniCore32State *env = &cpu->env;
67
68 env->cp0.c0_cpuid = 0x4d000863;
69 env->cp0.c0_cachetype = 0x0d152152;
70 env->cp0.c1_sys = 0x2000;
71 env->cp0.c2_base = 0x0;
72 env->cp0.c3_faultstatus = 0x0;
73 env->cp0.c4_faultaddr = 0x0;
74 env->ucf64.xregs[UC32_UCF64_FPSCR] = 0;
75
76 set_feature(env, UC32_HWCAP_CMOV);
77 set_feature(env, UC32_HWCAP_UCF64);
78 }
79
80 static void uc32_any_cpu_initfn(Object *obj)
81 {
82 UniCore32CPU *cpu = UNICORE32_CPU(obj);
83 CPUUniCore32State *env = &cpu->env;
84
85 env->cp0.c0_cpuid = 0xffffffff;
86 env->ucf64.xregs[UC32_UCF64_FPSCR] = 0;
87
88 set_feature(env, UC32_HWCAP_CMOV);
89 set_feature(env, UC32_HWCAP_UCF64);
90 }
91
92 static const UniCore32CPUInfo uc32_cpus[] = {
93 { .name = "UniCore-II", .instance_init = unicore_ii_cpu_initfn },
94 { .name = "any", .instance_init = uc32_any_cpu_initfn },
95 };
96
97 static void uc32_cpu_realizefn(DeviceState *dev, Error **errp)
98 {
99 UniCore32CPUClass *ucc = UNICORE32_CPU_GET_CLASS(dev);
100
101 qemu_init_vcpu(CPU(dev));
102
103 ucc->parent_realize(dev, errp);
104 }
105
106 static void uc32_cpu_initfn(Object *obj)
107 {
108 CPUState *cs = CPU(obj);
109 UniCore32CPU *cpu = UNICORE32_CPU(obj);
110 CPUUniCore32State *env = &cpu->env;
111 static bool inited;
112
113 cs->env_ptr = env;
114 cpu_exec_init(env);
115
116 #ifdef CONFIG_USER_ONLY
117 env->uncached_asr = ASR_MODE_USER;
118 env->regs[31] = 0;
119 #else
120 env->uncached_asr = ASR_MODE_PRIV;
121 env->regs[31] = 0x03000000;
122 #endif
123
124 tlb_flush(cs, 1);
125
126 if (tcg_enabled() && !inited) {
127 inited = true;
128 uc32_translate_init();
129 }
130 }
131
132 static const VMStateDescription vmstate_uc32_cpu = {
133 .name = "cpu",
134 .unmigratable = 1,
135 };
136
137 static void uc32_cpu_class_init(ObjectClass *oc, void *data)
138 {
139 DeviceClass *dc = DEVICE_CLASS(oc);
140 CPUClass *cc = CPU_CLASS(oc);
141 UniCore32CPUClass *ucc = UNICORE32_CPU_CLASS(oc);
142
143 ucc->parent_realize = dc->realize;
144 dc->realize = uc32_cpu_realizefn;
145
146 cc->class_by_name = uc32_cpu_class_by_name;
147 cc->has_work = uc32_cpu_has_work;
148 cc->do_interrupt = uc32_cpu_do_interrupt;
149 cc->dump_state = uc32_cpu_dump_state;
150 cc->set_pc = uc32_cpu_set_pc;
151 #ifdef CONFIG_USER_ONLY
152 cc->handle_mmu_fault = uc32_cpu_handle_mmu_fault;
153 #else
154 cc->get_phys_page_debug = uc32_cpu_get_phys_page_debug;
155 #endif
156 dc->vmsd = &vmstate_uc32_cpu;
157 }
158
159 static void uc32_register_cpu_type(const UniCore32CPUInfo *info)
160 {
161 TypeInfo type_info = {
162 .parent = TYPE_UNICORE32_CPU,
163 .instance_init = info->instance_init,
164 };
165
166 type_info.name = g_strdup_printf("%s-" TYPE_UNICORE32_CPU, info->name);
167 type_register(&type_info);
168 g_free((void *)type_info.name);
169 }
170
171 static const TypeInfo uc32_cpu_type_info = {
172 .name = TYPE_UNICORE32_CPU,
173 .parent = TYPE_CPU,
174 .instance_size = sizeof(UniCore32CPU),
175 .instance_init = uc32_cpu_initfn,
176 .abstract = true,
177 .class_size = sizeof(UniCore32CPUClass),
178 .class_init = uc32_cpu_class_init,
179 };
180
181 static void uc32_cpu_register_types(void)
182 {
183 int i;
184
185 type_register_static(&uc32_cpu_type_info);
186 for (i = 0; i < ARRAY_SIZE(uc32_cpus); i++) {
187 uc32_register_cpu_type(&uc32_cpus[i]);
188 }
189 }
190
191 type_init(uc32_cpu_register_types)