forked from Minki/linux
a76096a657
In preparation work for early loading, refactor some common functions that will be shared, and move some struct defines to a common header file. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Link: http://lkml.kernel.org/r/1369940959-2077-4-git-send-email-jacob.shin@amd.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
#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, const u8 *data, size_t size);
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#endif /* _ASM_X86_MICROCODE_AMD_H */
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