projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_MICROCODE_H |
| 2 | #define _ASM_X86_MICROCODE_H | |
| d45de409 | 3 | |
| 18dbc916 DA |
4 | struct cpu_signature { |
| 5 | unsigned int sig; | |
| 6 | unsigned int pf; | |
| 7 | unsigned int rev; | |
| 8 | }; | |
| 8d86f390 | 9 | |
| a0a29b62 | 10 | struct device; |
| d45de409 | 11 | |
| 871b72dd DA |
12 | enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND }; |
| 13 | ||
| 26bf7a48 | 14 | struct microcode_ops { |
| 871b72dd DA |
15 | enum ucode_state (*request_microcode_user) (int cpu, |
| 16 | const void __user *buf, size_t size); | |
| a0a29b62 | 17 | |
| 48e30685 BP |
18 | enum ucode_state (*request_microcode_fw) (int cpu, struct device *, |
| 19 | bool refresh_fw); | |
| a0a29b62 | 20 | |
| a0a29b62 | 21 | void (*microcode_fini_cpu) (int cpu); |
| 871b72dd DA |
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); | |
| 26bf7a48 PO |
31 | }; |
| 32 | ||
| d45de409 | 33 | struct ucode_cpu_info { |
| 871b72dd DA |
34 | struct cpu_signature cpu_sig; |
| 35 | int valid; | |
| 36 | void *mc; | |
| c3b71bce | 37 | }; |
| d45de409 DA |
38 | extern struct ucode_cpu_info ucode_cpu_info[]; |
| 39 | ||
| 18dbc916 DA |
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); | |
| f72c1a57 | 51 | extern void __exit exit_amd_microcode(void); |
| 18dbc916 DA |
52 | #else |
| 53 | static inline struct microcode_ops * __init init_amd_microcode(void) | |
| 54 | { | |
| 55 | return NULL; | |
| 56 | } | |
| f72c1a57 | 57 | static inline void __exit exit_amd_microcode(void) {} |
| 18dbc916 DA |
58 | #endif |
| 59 | ||
| a8ebf6d1 FY |
60 | #ifdef CONFIG_MICROCODE_EARLY |
| 61 | #define MAX_UCODE_COUNT 128 | |
| 62 | extern void __init load_ucode_bsp(void); | |
| 148f9bb8 | 63 | extern void load_ucode_ap(void); |
| a8ebf6d1 FY |
64 | extern int __init save_microcode_in_initrd(void); |
| 65 | #else | |
| 66 | static inline void __init load_ucode_bsp(void) {} | |
| 148f9bb8 | 67 | static inline void load_ucode_ap(void) {} |
| a8ebf6d1 FY |
68 | static inline int __init save_microcode_in_initrd(void) |
| 69 | { | |
| 70 | return 0; | |
| 71 | } | |
| 72 | #endif | |
| 73 | ||
| 1965aae3 | 74 | #endif /* _ASM_X86_MICROCODE_H */ |