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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/x86/include/asm/microcode.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/x86/include/asm/microcode.h')
-rw-r--r-- | arch/x86/include/asm/microcode.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h new file mode 100644 index 00000000..4ebe157b --- /dev/null +++ b/arch/x86/include/asm/microcode.h @@ -0,0 +1,66 @@ +#ifndef _ASM_X86_MICROCODE_H +#define _ASM_X86_MICROCODE_H + +struct cpu_signature { + unsigned int sig; + unsigned int pf; + unsigned int rev; +}; + +struct device; + +enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND }; + +struct microcode_ops { + enum ucode_state (*request_microcode_user) (int cpu, + const void __user *buf, size_t size); + + enum ucode_state (*request_microcode_fw) (int cpu, + struct device *device); + + void (*microcode_fini_cpu) (int cpu); + + /* + * The generic 'microcode_core' part guarantees that + * the callbacks below run on a target cpu when they + * are being called. + * See also the "Synchronization" section in microcode_core.c. + */ + int (*apply_microcode) (int cpu); + int (*collect_cpu_info) (int cpu, struct cpu_signature *csig); +}; + +struct ucode_cpu_info { + struct cpu_signature cpu_sig; + int valid; + void *mc; +}; +extern struct ucode_cpu_info ucode_cpu_info[]; + +#ifdef CONFIG_MICROCODE_INTEL +extern struct microcode_ops * __init init_intel_microcode(void); +#else +static inline struct microcode_ops * __init init_intel_microcode(void) +{ + return NULL; +} +#endif /* CONFIG_MICROCODE_INTEL */ + +#ifdef CONFIG_MICROCODE_AMD +extern struct microcode_ops * __init init_amd_microcode(void); +extern void __exit exit_amd_microcode(void); + +static inline void get_ucode_data(void *to, const u8 *from, size_t n) +{ + memcpy(to, from, n); +} + +#else +static inline struct microcode_ops * __init init_amd_microcode(void) +{ + return NULL; +} +static inline void __exit exit_amd_microcode(void) {} +#endif + +#endif /* _ASM_X86_MICROCODE_H */ |