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60 | "GenuineIntel" |
60 | "GenuineIntel" |
61 | }; |
61 | }; |
62 | 62 | ||
63 | void set_TS_flag(void) |
63 | void set_TS_flag(void) |
64 | { |
64 | { |
65 | asm |
65 | __asm__ volatile ( |
66 | ( |
- | |
67 | "mov %%cr0,%%rax;" |
66 | "mov %%cr0,%%rax;" |
68 | "or $8,%%rax;" |
67 | "or $8,%%rax;" |
69 | "mov %%rax,%%cr0;" |
68 | "mov %%rax,%%cr0;" |
70 | : |
69 | : |
71 | : |
70 | : |
72 | :"%rax" |
71 | :"%rax" |
73 | ); |
72 | ); |
74 | } |
73 | } |
75 | 74 | ||
76 | void reset_TS_flag(void) |
75 | void reset_TS_flag(void) |
77 | { |
76 | { |
78 | asm |
77 | __asm__ volatile ( |
79 | ( |
- | |
80 | "mov %%cr0,%%rax;" |
78 | "mov %%cr0,%%rax;" |
81 | "btc $4,%%rax;" |
79 | "btc $4,%%rax;" |
82 | "mov %%rax,%%cr0;" |
80 | "mov %%rax,%%cr0;" |
83 | : |
81 | : |
84 | : |
82 | : |
85 | :"%rax" |
83 | :"%rax" |
86 | ); |
84 | ); |
- | 85 | } |
|
- | 86 | ||
- | 87 | void cpu_arch_init(void) |
|
- | 88 | { |
|
- | 89 | CPU->arch.tss = tss_p; |
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- | 90 | CPU->fpu_owner=NULL; |
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- | 91 | } |
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- | 92 | ||
- | 93 | ||
- | 94 | void cpu_identify(void) |
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- | 95 | { |
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- | 96 | cpu_info_t info; |
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- | 97 | int i; |
|
- | 98 | ||
- | 99 | CPU->arch.vendor = VendorUnknown; |
|
- | 100 | if (has_cpuid()) { |
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- | 101 | cpuid(0, &info); |
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- | 102 | ||
- | 103 | /* |
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- | 104 | * Check for AMD processor. |
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- | 105 | */ |
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- | 106 | if (info.cpuid_ebx==AMD_CPUID_EBX && info.cpuid_ecx==AMD_CPUID_ECX && info.cpuid_edx==AMD_CPUID_EDX) { |
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- | 107 | CPU->arch.vendor = VendorAMD; |
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- | 108 | } |
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- | 109 | ||
- | 110 | /* |
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- | 111 | * Check for Intel processor. |
|
- | 112 | */ |
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- | 113 | if (info.cpuid_ebx==INTEL_CPUID_EBX && info.cpuid_ecx==INTEL_CPUID_ECX && info.cpuid_edx==INTEL_CPUID_EDX) { |
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- | 114 | CPU->arch.vendor = VendorIntel; |
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- | 115 | } |
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- | 116 | ||
- | 117 | cpuid(1, &info); |
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- | 118 | CPU->arch.family = (info.cpuid_eax>>8)&0xf; |
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- | 119 | CPU->arch.model = (info.cpuid_eax>>4)&0xf; |
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- | 120 | CPU->arch.stepping = (info.cpuid_eax>>0)&0xf; |
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- | 121 | } |
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- | 122 | } |
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- | 123 | ||
- | 124 | void cpu_print_report(cpu_t* m) |
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- | 125 | { |
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- | 126 | printf("cpu%d: (%s family=%d model=%d stepping=%d) %dMHz\n", |
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- | 127 | m->id, vendor_str[m->arch.vendor], m->arch.family, m->arch.model, m->arch.stepping, |
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- | 128 | m->frequency_mhz); |
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87 | } |
129 | } |