| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_X86_MICROCODE_AMD_H |
| 3 | #define _ASM_X86_MICROCODE_AMD_H |
| 4 | |
| 5 | #include <asm/microcode.h> |
| 6 | |
| 7 | #define UCODE_MAGIC 0x00414d44 |
| 8 | #define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 |
| 9 | #define UCODE_UCODE_TYPE 0x00000001 |
| 10 | |
| 11 | #define SECTION_HDR_SIZE 8 |
| 12 | #define CONTAINER_HDR_SZ 12 |
| 13 | |
| 14 | struct equiv_cpu_entry { |
| 15 | u32 installed_cpu; |
| 16 | u32 fixed_errata_mask; |
| 17 | u32 fixed_errata_compare; |
| 18 | u16 equiv_cpu; |
| 19 | u16 res; |
| 20 | } __attribute__((packed)); |
| 21 | |
| 22 | struct microcode_header_amd { |
| 23 | u32 data_code; |
| 24 | u32 patch_id; |
| 25 | u16 mc_patch_data_id; |
| 26 | u8 mc_patch_data_len; |
| 27 | u8 init_flag; |
| 28 | u32 mc_patch_data_checksum; |
| 29 | u32 nb_dev_id; |
| 30 | u32 sb_dev_id; |
| 31 | u16 processor_rev_id; |
| 32 | u8 nb_rev_id; |
| 33 | u8 sb_rev_id; |
| 34 | u8 bios_api_rev; |
| 35 | u8 reserved1[3]; |
| 36 | u32 match_reg[8]; |
| 37 | } __attribute__((packed)); |
| 38 | |
| 39 | struct microcode_amd { |
| 40 | struct microcode_header_amd hdr; |
| 41 | unsigned int mpb[0]; |
| 42 | }; |
| 43 | |
| 44 | #define PATCH_MAX_SIZE (3 * PAGE_SIZE) |
| 45 | |
| 46 | #ifdef CONFIG_MICROCODE_AMD |
| 47 | extern void __init load_ucode_amd_bsp(unsigned int family); |
| 48 | extern void load_ucode_amd_ap(unsigned int family); |
| 49 | extern int __init save_microcode_in_initrd_amd(unsigned int family); |
| 50 | void reload_ucode_amd(unsigned int cpu); |
| 51 | extern void amd_check_microcode(void); |
| 52 | #else |
| 53 | static inline void __init load_ucode_amd_bsp(unsigned int family) {} |
| 54 | static inline void load_ucode_amd_ap(unsigned int family) {} |
| 55 | static inline int __init |
| 56 | save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; } |
| 57 | static inline void reload_ucode_amd(unsigned int cpu) {} |
| 58 | static inline void amd_check_microcode(void) {} |
| 59 | #endif |
| 60 | #endif /* _ASM_X86_MICROCODE_AMD_H */ |