1#ifndef _ASM_X86_MICROCODE_H 2#define _ASM_X86_MICROCODE_H 3 4struct cpu_signature { 5 unsigned int sig; 6 unsigned int pf; 7 unsigned int rev; 8}; 9 10struct device; 11 12enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND }; 13 14struct microcode_ops { 15 enum ucode_state (*request_microcode_user) (int cpu, 16 const void __user *buf, size_t size); 17 18 enum ucode_state (*request_microcode_fw) (int cpu, 19 struct device *device); 20 21 void (*microcode_fini_cpu) (int cpu); 22 23 /* 24 * The generic 'microcode_core' part guarantees that 25 * the callbacks below run on a target cpu when they 26 * are being called. 27 * See also the "Synchronization" section in microcode_core.c. 28 */ 29 int (*apply_microcode) (int cpu); 30 int (*collect_cpu_info) (int cpu, struct cpu_signature *csig); 31}; 32 33struct ucode_cpu_info { 34 struct cpu_signature cpu_sig; 35 int valid; 36 void *mc; 37}; 38extern struct ucode_cpu_info ucode_cpu_info[]; 39 40#ifdef CONFIG_MICROCODE_INTEL 41extern struct microcode_ops * __init init_intel_microcode(void); 42#else 43static inline struct microcode_ops * __init init_intel_microcode(void) 44{ 45 return NULL; 46} 47#endif /* CONFIG_MICROCODE_INTEL */ 48 49#ifdef CONFIG_MICROCODE_AMD 50extern struct microcode_ops * __init init_amd_microcode(void); 51#else 52static inline struct microcode_ops * __init init_amd_microcode(void) 53{ 54 return NULL; 55} 56#endif 57 58#endif /* _ASM_X86_MICROCODE_H */ 59