| 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 | enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND }; |
| 13 | |
| 14 | struct 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, struct device *, |
| 19 | bool refresh_fw); |
| 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 | |
| 33 | struct ucode_cpu_info { |
| 34 | struct cpu_signature cpu_sig; |
| 35 | int valid; |
| 36 | void *mc; |
| 37 | }; |
| 38 | extern struct ucode_cpu_info ucode_cpu_info[]; |
| 39 | |
| 40 | #ifdef CONFIG_MICROCODE_INTEL |
| 41 | extern struct microcode_ops * __init init_intel_microcode(void); |
| 42 | #else |
| 43 | static 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 |
| 50 | extern struct microcode_ops * __init init_amd_microcode(void); |
| 51 | extern void __exit exit_amd_microcode(void); |
| 52 | #else |
| 53 | static inline struct microcode_ops * __init init_amd_microcode(void) |
| 54 | { |
| 55 | return NULL; |
| 56 | } |
| 57 | static inline void __exit exit_amd_microcode(void) {} |
| 58 | #endif |
| 59 | |
| 60 | #endif /* _ASM_X86_MICROCODE_H */ |