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80 lines
1.9 KiB
80 lines
1.9 KiB
#ifndef _ASM_X86_MICROCODE_AMD_H |
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#define _ASM_X86_MICROCODE_AMD_H |
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#include <asm/microcode.h> |
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#define UCODE_MAGIC 0x00414d44 |
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#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000 |
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#define UCODE_UCODE_TYPE 0x00000001 |
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#define SECTION_HDR_SIZE 8 |
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#define CONTAINER_HDR_SZ 12 |
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struct equiv_cpu_entry { |
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u32 installed_cpu; |
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u32 fixed_errata_mask; |
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u32 fixed_errata_compare; |
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u16 equiv_cpu; |
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u16 res; |
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} __attribute__((packed)); |
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struct microcode_header_amd { |
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u32 data_code; |
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u32 patch_id; |
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u16 mc_patch_data_id; |
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u8 mc_patch_data_len; |
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u8 init_flag; |
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u32 mc_patch_data_checksum; |
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u32 nb_dev_id; |
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u32 sb_dev_id; |
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u16 processor_rev_id; |
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u8 nb_rev_id; |
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u8 sb_rev_id; |
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u8 bios_api_rev; |
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u8 reserved1[3]; |
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u32 match_reg[8]; |
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} __attribute__((packed)); |
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struct microcode_amd { |
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struct microcode_header_amd hdr; |
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unsigned int mpb[0]; |
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}; |
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static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table, |
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unsigned int sig) |
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{ |
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int i = 0; |
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if (!equiv_cpu_table) |
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return 0; |
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while (equiv_cpu_table[i].installed_cpu != 0) { |
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if (sig == equiv_cpu_table[i].installed_cpu) |
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return equiv_cpu_table[i].equiv_cpu; |
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i++; |
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} |
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return 0; |
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} |
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extern int __apply_microcode_amd(struct microcode_amd *mc_amd); |
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extern int apply_microcode_amd(int cpu); |
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extern enum ucode_state load_microcode_amd(int cpu, u8 family, const u8 *data, size_t size); |
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#define PATCH_MAX_SIZE PAGE_SIZE |
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extern u8 amd_ucode_patch[PATCH_MAX_SIZE]; |
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#ifdef CONFIG_MICROCODE_AMD |
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extern void __init load_ucode_amd_bsp(unsigned int family); |
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extern void load_ucode_amd_ap(void); |
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extern int __init save_microcode_in_initrd_amd(void); |
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void reload_ucode_amd(void); |
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#else |
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static inline void __init load_ucode_amd_bsp(unsigned int family) {} |
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static inline void load_ucode_amd_ap(void) {} |
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static inline int __init save_microcode_in_initrd_amd(void) { return -EINVAL; } |
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void reload_ucode_amd(void) {} |
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#endif |
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extern bool check_current_patch_level(u32 *rev, bool early); |
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#endif /* _ASM_X86_MICROCODE_AMD_H */
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