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/* 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 (3 * 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(unsigned int cpu);
extern void amd_check_microcode(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; }
static inline void reload_ucode_amd(unsigned int cpu) {}
static inline void amd_check_microcode(void) {}
#endif
#endif /* _ASM_X86_MICROCODE_AMD_H */