LXR linux/arch/x86/include/asm/microcode

   1#ifndef _ASM_X86_MICROCODE_INTEL_H
   2#define _ASM_X86_MICROCODE_INTEL_H
   3
   4#include <asm/microcode.h>
   5
   6struct microcode_header_intel {
   7        unsigned int            hdrver;
   8        unsigned int            rev;
   9        unsigned int            date;
  10        unsigned int            sig;
  11        unsigned int            cksum;
  12        unsigned int            ldrver;
  13        unsigned int            pf;
  14        unsigned int            datasize;
  15        unsigned int            totalsize;
  16        unsigned int            reserved[3];
  17};
  18
  19struct microcode_intel {
  20        struct microcode_header_intel hdr;
  21        unsigned int            bits[0];
  22};
  23
  24/* microcode format is extended from prescott processors */
  25struct extended_signature {
  26        unsigned int            sig;
  27        unsigned int            pf;
  28        unsigned int            cksum;
  29};
  30
  31struct extended_sigtable {
  32        unsigned int            count;
  33        unsigned int            cksum;
  34        unsigned int            reserved[3];
  35        struct extended_signature sigs[0];
  36};
  37
  38#define DEFAULT_UCODE_DATASIZE  (2000)
  39#define MC_HEADER_SIZE          (sizeof(struct microcode_header_intel))
  40#define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE)
  41#define EXT_HEADER_SIZE         (sizeof(struct extended_sigtable))
  42#define EXT_SIGNATURE_SIZE      (sizeof(struct extended_signature))
  43#define DWSIZE                  (sizeof(u32))
  44
  45#define get_totalsize(mc) \
  46        (((struct microcode_intel *)mc)->hdr.totalsize ? \
  47         ((struct microcode_intel *)mc)->hdr.totalsize : \
  48         DEFAULT_UCODE_TOTALSIZE)
  49
  50#define get_datasize(mc) \
  51        (((struct microcode_intel *)mc)->hdr.datasize ? \
  52         ((struct microcode_intel *)mc)->hdr.datasize : DEFAULT_UCODE_DATASIZE)
  53
  54#define sigmatch(s1, s2, p1, p2) \
  55        (((s1) == (s2)) && (((p1) & (p2)) || (((p1) == 0) && ((p2) == 0))))
  56
  57#define exttable_size(et) ((et)->count * EXT_SIGNATURE_SIZE + EXT_HEADER_SIZE)
  58
  59extern int
  60get_matching_microcode(unsigned int csig, int cpf, void *mc, int rev);
  61extern int microcode_sanity_check(void *mc, int print_err);
  62extern int get_matching_sig(unsigned int csig, int cpf, void *mc, int rev);
  63extern int
  64update_match_revision(struct microcode_header_intel *mc_header, int rev);
  65
  66#ifdef CONFIG_MICROCODE_INTEL_EARLY
  67extern void __init load_ucode_intel_bsp(void);
  68extern void load_ucode_intel_ap(void);
  69extern void show_ucode_info_early(void);
  70extern int __init save_microcode_in_initrd_intel(void);
  71#else
  72static inline __init void load_ucode_intel_bsp(void) {}
  73static inline void load_ucode_intel_ap(void) {}
  74static inline void show_ucode_info_early(void) {}
  75static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; }
  76#endif
  77
  78#if defined(CONFIG_MICROCODE_INTEL_EARLY) && defined(CONFIG_HOTPLUG_CPU)
  79extern int save_mc_for_early(u8 *mc);
  80#else
  81static inline int save_mc_for_early(u8 *mc)
  82{
  83        return 0;
  84}
  85#endif
  86
  87#endif /* _ASM_X86_MICROCODE_INTEL_H */
  88