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ae0f5e9e AF |
1 | /* |
2 | * QEMU UniCore32 CPU | |
3 | * | |
d48813dd | 4 | * Copyright (c) 2010-2012 Guan Xuetao |
ae0f5e9e AF |
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-qom.h" | |
16 | #include "qemu-common.h" | |
17 | ||
8df9082d AF |
18 | static inline void set_feature(CPUUniCore32State *env, int feature) |
19 | { | |
20 | env->features |= feature; | |
21 | } | |
22 | ||
ae0f5e9e AF |
23 | /* CPU models */ |
24 | ||
25 | typedef struct UniCore32CPUInfo { | |
26 | const char *name; | |
27 | void (*instance_init)(Object *obj); | |
28 | } UniCore32CPUInfo; | |
29 | ||
30 | static void unicore_ii_cpu_initfn(Object *obj) | |
31 | { | |
32 | UniCore32CPU *cpu = UNICORE32_CPU(obj); | |
33 | CPUUniCore32State *env = &cpu->env; | |
34 | ||
d48813dd GX |
35 | env->cp0.c0_cpuid = 0x4d000863; |
36 | env->cp0.c0_cachetype = 0x0d152152; | |
37 | env->cp0.c1_sys = 0x2000; | |
38 | env->cp0.c2_base = 0x0; | |
39 | env->cp0.c3_faultstatus = 0x0; | |
40 | env->cp0.c4_faultaddr = 0x0; | |
41 | env->ucf64.xregs[UC32_UCF64_FPSCR] = 0; | |
8df9082d AF |
42 | |
43 | set_feature(env, UC32_HWCAP_CMOV); | |
44 | set_feature(env, UC32_HWCAP_UCF64); | |
ae0f5e9e AF |
45 | } |
46 | ||
47 | static void uc32_any_cpu_initfn(Object *obj) | |
48 | { | |
49 | UniCore32CPU *cpu = UNICORE32_CPU(obj); | |
50 | CPUUniCore32State *env = &cpu->env; | |
51 | ||
52 | env->cp0.c0_cpuid = 0xffffffff; | |
d48813dd | 53 | env->ucf64.xregs[UC32_UCF64_FPSCR] = 0; |
8df9082d AF |
54 | |
55 | set_feature(env, UC32_HWCAP_CMOV); | |
56 | set_feature(env, UC32_HWCAP_UCF64); | |
ae0f5e9e AF |
57 | } |
58 | ||
59 | static const UniCore32CPUInfo uc32_cpus[] = { | |
60 | { .name = "UniCore-II", .instance_init = unicore_ii_cpu_initfn }, | |
61 | { .name = "any", .instance_init = uc32_any_cpu_initfn }, | |
62 | }; | |
63 | ||
64 | static void uc32_cpu_initfn(Object *obj) | |
65 | { | |
66 | UniCore32CPU *cpu = UNICORE32_CPU(obj); | |
67 | CPUUniCore32State *env = &cpu->env; | |
68 | ||
69 | cpu_exec_init(env); | |
70 | env->cpu_model_str = object_get_typename(obj); | |
71 | ||
d48813dd | 72 | #ifdef CONFIG_USER_ONLY |
ae0f5e9e AF |
73 | env->uncached_asr = ASR_MODE_USER; |
74 | env->regs[31] = 0; | |
d48813dd GX |
75 | #else |
76 | env->uncached_asr = ASR_MODE_PRIV; | |
77 | env->regs[31] = 0x03000000; | |
78 | #endif | |
ae0f5e9e AF |
79 | |
80 | tlb_flush(env, 1); | |
81 | } | |
82 | ||
83 | static void uc32_register_cpu_type(const UniCore32CPUInfo *info) | |
84 | { | |
85 | TypeInfo type_info = { | |
86 | .name = info->name, | |
87 | .parent = TYPE_UNICORE32_CPU, | |
88 | .instance_init = info->instance_init, | |
89 | }; | |
90 | ||
91 | type_register_static(&type_info); | |
92 | } | |
93 | ||
94 | static const TypeInfo uc32_cpu_type_info = { | |
95 | .name = TYPE_UNICORE32_CPU, | |
96 | .parent = TYPE_CPU, | |
97 | .instance_size = sizeof(UniCore32CPU), | |
98 | .instance_init = uc32_cpu_initfn, | |
99 | .abstract = true, | |
100 | .class_size = sizeof(UniCore32CPUClass), | |
101 | }; | |
102 | ||
103 | static void uc32_cpu_register_types(void) | |
104 | { | |
105 | int i; | |
106 | ||
107 | type_register_static(&uc32_cpu_type_info); | |
108 | for (i = 0; i < ARRAY_SIZE(uc32_cpus); i++) { | |
109 | uc32_register_cpu_type(&uc32_cpus[i]); | |
110 | } | |
111 | } | |
112 | ||
113 | type_init(uc32_cpu_register_types) |