| /* SPDX-License-Identifier: GPL-2.0 */ |
| #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]; |
| }; |
| |
| #define PATCH_MAX_SIZE PAGE_SIZE |
| |
| #ifdef CONFIG_MICROCODE_AMD |
| extern void __init load_ucode_amd_bsp(unsigned int family); |
| extern void load_ucode_amd_ap(unsigned int family); |
| extern int __init save_microcode_in_initrd_amd(unsigned int family); |
| void reload_ucode_amd(void); |
| #else |
| static inline void __init load_ucode_amd_bsp(unsigned int family) {} |
| static inline void load_ucode_amd_ap(unsigned int family) {} |
| static inline int __init |
| save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; } |
| void reload_ucode_amd(void) {} |
| #endif |
| #endif /* _ASM_X86_MICROCODE_AMD_H */ |
