1 #ifndef _ASM_X86_MICROCODE_AMD_H
2 #define _ASM_X86_MICROCODE_AMD_H
4 #include <asm/microcode.h>
6 #define UCODE_MAGIC 0x00414d44
7 #define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
8 #define UCODE_UCODE_TYPE 0x00000001
10 #define SECTION_HDR_SIZE 8
11 #define CONTAINER_HDR_SZ 12
13 struct equiv_cpu_entry {
15 u32 fixed_errata_mask;
16 u32 fixed_errata_compare;
19 } __attribute__((packed));
21 struct microcode_header_amd {
27 u32 mc_patch_data_checksum;
36 } __attribute__((packed));
38 struct microcode_amd {
39 struct microcode_header_amd hdr;
43 static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
51 while (equiv_cpu_table[i].installed_cpu != 0) {
52 if (sig == equiv_cpu_table[i].installed_cpu)
53 return equiv_cpu_table[i].equiv_cpu;
60 extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
61 extern int apply_microcode_amd(int cpu);
62 extern enum ucode_state load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size);
64 #define PATCH_MAX_SIZE PAGE_SIZE
65 extern u8 amd_ucode_patch[PATCH_MAX_SIZE];
67 #ifdef CONFIG_MICROCODE_AMD_EARLY
68 extern void __init load_ucode_amd_bsp(unsigned int family);
69 extern void load_ucode_amd_ap(void);
70 extern int __init save_microcode_in_initrd_amd(void);
71 void reload_ucode_amd(void);
73 static inline void __init load_ucode_amd_bsp(unsigned int family) {}
74 static inline void load_ucode_amd_ap(void) {}
75 static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; }
76 void reload_ucode_amd(void) {}
79 #endif /* _ASM_X86_MICROCODE_AMD_H */