1 #ifndef _ASM_X86_MICROCODE_AMD_H 2 #define _ASM_X86_MICROCODE_AMD_H 3 4 #include <asm/microcode.h> 5 6 #define UCODE_MAGIC 0x00414d44 7 #define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 8 #define UCODE_UCODE_TYPE 0x00000001 9 10 #define SECTION_HDR_SIZE 8 11 #define CONTAINER_HDR_SZ 12 12 13 struct equiv_cpu_entry { 14 u32 installed_cpu; 15 u32 fixed_errata_mask; 16 u32 fixed_errata_compare; 17 u16 equiv_cpu; 18 u16 res; 19 } __attribute__((packed)); 20 21 struct microcode_header_amd { 22 u32 data_code; 23 u32 patch_id; 24 u16 mc_patch_data_id; 25 u8 mc_patch_data_len; 26 u8 init_flag; 27 u32 mc_patch_data_checksum; 28 u32 nb_dev_id; 29 u32 sb_dev_id; 30 u16 processor_rev_id; 31 u8 nb_rev_id; 32 u8 sb_rev_id; 33 u8 bios_api_rev; 34 u8 reserved1[3]; 35 u32 match_reg[8]; 36 } __attribute__((packed)); 37 38 struct microcode_amd { 39 struct microcode_header_amd hdr; 40 unsigned int mpb[0]; 41 }; 42 find_equiv_id(struct equiv_cpu_entry * equiv_cpu_table,unsigned int sig)43static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table, 44 unsigned int sig) 45 { 46 int i = 0; 47 48 if (!equiv_cpu_table) 49 return 0; 50 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; 54 55 i++; 56 } 57 return 0; 58 } 59 60 extern int __apply_microcode_amd(struct microcode_amd *mc_amd); 61 extern int apply_microcode_amd(int cpu); 62 63 #define PATCH_MAX_SIZE PAGE_SIZE 64 extern u8 amd_ucode_patch[PATCH_MAX_SIZE]; 65 66 #ifdef CONFIG_MICROCODE_AMD 67 extern void __init load_ucode_amd_bsp(unsigned int family); 68 extern void load_ucode_amd_ap(void); 69 extern int __init save_microcode_in_initrd_amd(void); 70 void reload_ucode_amd(void); 71 #else load_ucode_amd_bsp(unsigned int family)72static inline void __init load_ucode_amd_bsp(unsigned int family) {} load_ucode_amd_ap(void)73static inline void load_ucode_amd_ap(void) {} save_microcode_in_initrd_amd(void)74static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; } reload_ucode_amd(void)75void reload_ucode_amd(void) {} 76 #endif 77 78 extern bool check_current_patch_level(u32 *rev, bool early); 79 #endif /* _ASM_X86_MICROCODE_AMD_H */ 80