arch/x86/include/asm/cpu_device_id.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _CPU_DEVICE_ID
   3 #define _CPU_DEVICE_ID 1
   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 #define X86_STEPPINGS(mins, maxs)    GENMASK(maxs, mins)
  13
  14 /**
  15  * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching
  16  * @_vendor:    The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
  17  *              The name is expanded to X86_VENDOR_@_vendor
  18  * @_family:    The family number or X86_FAMILY_ANY
  19  * @_model:     The model number, model constant or X86_MODEL_ANY
  20  * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY
  21  * @_feature:   A X86_FEATURE bit or X86_FEATURE_ANY
  22  * @_data:      Driver specific data or NULL. The internal storage
  23  *              format is unsigned long. The supplied value, pointer
  24  *              etc. is casted to unsigned long internally.
  25  *
  26  * Backport version to keep the SRBDS pile consistant. No shorter variants
  27  * required for this.
  28  */
  29 #define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \
  30                                                     _steppings, _feature, _data) { \
  31         .vendor         = X86_VENDOR_##_vendor,                         \
  32         .family         = _family,                                      \
  33         .model          = _model,                                       \
  34         .steppings      = _steppings,                                   \
  35         .feature        = _feature,                                     \
  36         .driver_data    = (unsigned long) _data                         \
  37 }
  38
  39 extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
  40
  41 #endif