include/asm-x86/microcode.h

   1 #ifndef ASM_X86__MICROCODE_H
   2 #define ASM_X86__MICROCODE_H
   3
   4 struct cpu_signature {
   5         unsigned int sig;
   6         unsigned int pf;
   7         unsigned int rev;
   8 };
   9
  10 struct device;
  11
  12 struct microcode_ops {
  13         int  (*request_microcode_user) (int cpu, const void __user *buf, size_t size);
  14         int  (*request_microcode_fw) (int cpu, struct device *device);
  15
  16         void (*apply_microcode) (int cpu);
  17
  18         int  (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
  19         void (*microcode_fini_cpu) (int cpu);
  20 };
  21
  22 struct ucode_cpu_info {
  23         struct cpu_signature cpu_sig;
  24         int valid;
  25         void *mc;
  26 };
  27 extern struct ucode_cpu_info ucode_cpu_info[];
  28
  29 #ifdef CONFIG_MICROCODE_INTEL
  30 extern struct microcode_ops * __init init_intel_microcode(void);
  31 #else
  32 static inline struct microcode_ops * __init init_intel_microcode(void)
  33 {
  34         return NULL;
  35 }
  36 #endif /* CONFIG_MICROCODE_INTEL */
  37
  38 #ifdef CONFIG_MICROCODE_AMD
  39 extern struct microcode_ops * __init init_amd_microcode(void);
  40 #else
  41 static inline struct microcode_ops * __init init_amd_microcode(void)
  42 {
  43         return NULL;
  44 }
  45 #endif
  46
  47 #endif /* ASM_X86__MICROCODE_H */