LXR linux/arch/x86/include/asm/cpu_device

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_X86_CPU_DEVICE_ID
   3#define _ASM_X86_CPU_DEVICE_ID
   4
   5/*
   6 * Declare drivers belonging to specific x86 CPUs
   7 * Similar in spirit to pci_device_id and related PCI functions
   8 */
   9
  10#include <linux/mod_devicetable.h>
  11
  12/*
  13 * Match specific microcode revisions.
  14 *
  15 * vendor/family/model/stepping must be all set.
  16 *
  17 * Only checks against the boot CPU.  When mixed-stepping configs are
  18 * valid for a CPU model, add a quirk for every valid stepping and
  19 * do the fine-tuning in the quirk handler.
  20 */
  21
  22struct x86_cpu_desc {
  23        u8      x86_family;
  24        u8      x86_vendor;
  25        u8      x86_model;
  26        u8      x86_stepping;
  27        u32     x86_microcode_rev;
  28};
  29
  30#define INTEL_CPU_DESC(model, stepping, revision) {             \
  31        .x86_family             = 6,                            \
  32        .x86_vendor             = X86_VENDOR_INTEL,             \
  33        .x86_model              = (model),                      \
  34        .x86_stepping           = (stepping),                   \
  35        .x86_microcode_rev      = (revision),                   \
  36}
  37
  38extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
  39extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table);
  40
  41#endif /* _ASM_X86_CPU_DEVICE_ID */
  42