#ifndef _ASM_X86_MICROCODE_AMD_H #define _ASM_X86_MICROCODE_AMD_H #include <asm/microcode.h> #define UCODE_MAGIC 0x00414d44 #define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 #define UCODE_UCODE_TYPE 0x00000001 #define SECTION_HDR_SIZE 8 #define CONTAINER_HDR_SZ 12 struct equiv_cpu_entry { u32 installed_cpu; u32 fixed_errata_mask; u32 fixed_errata_compare; u16 equiv_cpu; u16 res; } __attribute__((packed)); struct microcode_header_amd { u32 data_code; u32 patch_id; u16 mc_patch_data_id; u8 mc_patch_data_len; u8 init_flag; u32 mc_patch_data_checksum; u32 nb_dev_id; u32 sb_dev_id; u16 processor_rev_id; u8 nb_rev_id; u8 sb_rev_id; u8 bios_api_rev; u8 reserved1[3]; u32 match_reg[8]; } __attribute__((packed)); struct microcode_amd { struct microcode_header_amd hdr; unsigned int mpb[0]; }; static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table, unsigned int sig) { int i = 0; if (!equiv_cpu_table) return 0; while (equiv_cpu_table[i].installed_cpu != 0) { if (sig == equiv_cpu_table[i].installed_cpu) return equiv_cpu_table[i].equiv_cpu; i++; } return 0; } extern int __apply_microcode_amd(struct microcode_amd *mc_amd); extern int apply_microcode_amd(int cpu); extern enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size); #define PATCH_MAX_SIZE PAGE_SIZE extern u8 amd_ucode_patch[PATCH_MAX_SIZE]; #ifdef CONFIG_MICROCODE_AMD_EARLY extern void __init load_ucode_amd_bsp(void); extern void load_ucode_amd_ap(void); extern int __init save_microcode_in_initrd_amd(void); #else static inline void __init load_ucode_amd_bsp(void) {} static inline void load_ucode_amd_ap(void) {} static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; } #endif #endif /* _ASM_X86_MICROCODE_AMD_H */