18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_X86_MICROCODE_AMD_H 38c2ecf20Sopenharmony_ci#define _ASM_X86_MICROCODE_AMD_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#include <asm/microcode.h> 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci#define UCODE_MAGIC 0x00414d44 88c2ecf20Sopenharmony_ci#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 98c2ecf20Sopenharmony_ci#define UCODE_UCODE_TYPE 0x00000001 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#define SECTION_HDR_SIZE 8 128c2ecf20Sopenharmony_ci#define CONTAINER_HDR_SZ 12 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_cistruct equiv_cpu_entry { 158c2ecf20Sopenharmony_ci u32 installed_cpu; 168c2ecf20Sopenharmony_ci u32 fixed_errata_mask; 178c2ecf20Sopenharmony_ci u32 fixed_errata_compare; 188c2ecf20Sopenharmony_ci u16 equiv_cpu; 198c2ecf20Sopenharmony_ci u16 res; 208c2ecf20Sopenharmony_ci} __attribute__((packed)); 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_cistruct microcode_header_amd { 238c2ecf20Sopenharmony_ci u32 data_code; 248c2ecf20Sopenharmony_ci u32 patch_id; 258c2ecf20Sopenharmony_ci u16 mc_patch_data_id; 268c2ecf20Sopenharmony_ci u8 mc_patch_data_len; 278c2ecf20Sopenharmony_ci u8 init_flag; 288c2ecf20Sopenharmony_ci u32 mc_patch_data_checksum; 298c2ecf20Sopenharmony_ci u32 nb_dev_id; 308c2ecf20Sopenharmony_ci u32 sb_dev_id; 318c2ecf20Sopenharmony_ci u16 processor_rev_id; 328c2ecf20Sopenharmony_ci u8 nb_rev_id; 338c2ecf20Sopenharmony_ci u8 sb_rev_id; 348c2ecf20Sopenharmony_ci u8 bios_api_rev; 358c2ecf20Sopenharmony_ci u8 reserved1[3]; 368c2ecf20Sopenharmony_ci u32 match_reg[8]; 378c2ecf20Sopenharmony_ci} __attribute__((packed)); 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_cistruct microcode_amd { 408c2ecf20Sopenharmony_ci struct microcode_header_amd hdr; 418c2ecf20Sopenharmony_ci unsigned int mpb[0]; 428c2ecf20Sopenharmony_ci}; 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ci#define PATCH_MAX_SIZE (3 * PAGE_SIZE) 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci#ifdef CONFIG_MICROCODE_AMD 478c2ecf20Sopenharmony_ciextern void __init load_ucode_amd_bsp(unsigned int family); 488c2ecf20Sopenharmony_ciextern void load_ucode_amd_ap(unsigned int family); 498c2ecf20Sopenharmony_ciextern int __init save_microcode_in_initrd_amd(unsigned int family); 508c2ecf20Sopenharmony_civoid reload_ucode_amd(unsigned int cpu); 518c2ecf20Sopenharmony_ciextern void amd_check_microcode(void); 528c2ecf20Sopenharmony_ci#else 538c2ecf20Sopenharmony_cistatic inline void __init load_ucode_amd_bsp(unsigned int family) {} 548c2ecf20Sopenharmony_cistatic inline void load_ucode_amd_ap(unsigned int family) {} 558c2ecf20Sopenharmony_cistatic inline int __init 568c2ecf20Sopenharmony_cisave_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; } 578c2ecf20Sopenharmony_cistatic inline void reload_ucode_amd(unsigned int cpu) {} 588c2ecf20Sopenharmony_cistatic inline void amd_check_microcode(void) {} 598c2ecf20Sopenharmony_ci#endif 608c2ecf20Sopenharmony_ci#endif /* _ASM_X86_MICROCODE_AMD_H */ 61