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 * The wildcard initializers are in mod_devicetable.h because 10 * file2alias needs them. Sigh. 11 */ 12 #include <linux/mod_devicetable.h> 13 /* Get the INTEL_FAM* model defines */ 14 #include <asm/intel-family.h> 15 /* And the X86_VENDOR_* ones */ 16 #include <asm/processor.h> 17 18 /* Centaur FAM6 models */ 19 #define X86_CENTAUR_FAM6_C7_A 0xa 20 #define X86_CENTAUR_FAM6_C7_D 0xd 21 #define X86_CENTAUR_FAM6_NANO 0xf 22 23 #define X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins) 24 /** 25 * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching 26 * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 27 * The name is expanded to X86_VENDOR_@_vendor 28 * @_family: The family number or X86_FAMILY_ANY 29 * @_model: The model number, model constant or X86_MODEL_ANY 30 * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY 31 * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY 32 * @_data: Driver specific data or NULL. The internal storage 33 * format is unsigned long. The supplied value, pointer 34 * etc. is casted to unsigned long internally. 35 * 36 * Use only if you need all selectors. Otherwise use one of the shorter 37 * macros of the X86_MATCH_* family. If there is no matching shorthand 38 * macro, consider to add one. If you really need to wrap one of the macros 39 * into another macro at the usage site for good reasons, then please 40 * start this local macro with X86_MATCH to allow easy grepping. 41 */ 42 #define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \ 43 _steppings, _feature, _data) { \ 44 .vendor = X86_VENDOR_##_vendor, \ 45 .family = _family, \ 46 .model = _model, \ 47 .steppings = _steppings, \ 48 .feature = _feature, \ 49 .driver_data = (unsigned long) _data \ 50 } 51 52 /** 53 * X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Macro for CPU matching 54 * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 55 * The name is expanded to X86_VENDOR_@_vendor 56 * @_family: The family number or X86_FAMILY_ANY 57 * @_model: The model number, model constant or X86_MODEL_ANY 58 * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY 59 * @_data: Driver specific data or NULL. The internal storage 60 * format is unsigned long. The supplied value, pointer 61 * etc. is casted to unsigned long internally. 62 * 63 * The steppings arguments of X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE() is 64 * set to wildcards. 65 */ 66 #define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, feature, data) \ 67 X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(vendor, family, model, \ 68 X86_STEPPING_ANY, feature, data) 69 70 /** 71 * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature 72 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 73 * The name is expanded to X86_VENDOR_@vendor 74 * @family: The family number or X86_FAMILY_ANY 75 * @feature: A X86_FEATURE bit 76 * @data: Driver specific data or NULL. The internal storage 77 * format is unsigned long. The supplied value, pointer 78 * etc. is casted to unsigned long internally. 79 * 80 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 81 * set to wildcards. 82 */ 83 #define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ 84 X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \ 85 X86_MODEL_ANY, feature, data) 86 87 /** 88 * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature 89 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 90 * The name is expanded to X86_VENDOR_@vendor 91 * @feature: A X86_FEATURE bit 92 * @data: Driver specific data or NULL. The internal storage 93 * format is unsigned long. The supplied value, pointer 94 * etc. is casted to unsigned long internally. 95 * 96 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 97 * set to wildcards. 98 */ 99 #define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ 100 X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data) 101 102 /** 103 * X86_MATCH_FEATURE - Macro for matching a CPU feature 104 * @feature: A X86_FEATURE bit 105 * @data: Driver specific data or NULL. The internal storage 106 * format is unsigned long. The supplied value, pointer 107 * etc. is casted to unsigned long internally. 108 * 109 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 110 * set to wildcards. 111 */ 112 #define X86_MATCH_FEATURE(feature, data) \ 113 X86_MATCH_VENDOR_FEATURE(ANY, feature, data) 114 115 /** 116 * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model 117 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 118 * The name is expanded to X86_VENDOR_@vendor 119 * @family: The family number or X86_FAMILY_ANY 120 * @model: The model number, model constant or X86_MODEL_ANY 121 * @data: Driver specific data or NULL. The internal storage 122 * format is unsigned long. The supplied value, pointer 123 * etc. is casted to unsigned long internally. 124 * 125 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 126 * set to wildcards. 127 */ 128 #define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ 129 X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \ 130 X86_FEATURE_ANY, data) 131 132 /** 133 * X86_MATCH_VENDOR_FAM - Match vendor and family 134 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 135 * The name is expanded to X86_VENDOR_@vendor 136 * @family: The family number or X86_FAMILY_ANY 137 * @data: Driver specific data or NULL. The internal storage 138 * format is unsigned long. The supplied value, pointer 139 * etc. is casted to unsigned long internally. 140 * 141 * All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 142 * set of wildcards. 143 */ 144 #define X86_MATCH_VENDOR_FAM(vendor, family, data) \ 145 X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data) 146 147 /** 148 * X86_MATCH_INTEL_FAM6_MODEL - Match vendor INTEL, family 6 and model 149 * @model: The model name without the INTEL_FAM6_ prefix or ANY 150 * The model name is expanded to INTEL_FAM6_@model internally 151 * @data: Driver specific data or NULL. The internal storage 152 * format is unsigned long. The supplied value, pointer 153 * etc. is casted to unsigned long internally. 154 * 155 * The vendor is set to INTEL, the family to 6 and all other missing 156 * arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are set to wildcards. 157 * 158 * See X86_MATCH_VENDOR_FAM_MODEL_FEATURE() for further information. 159 */ 160 #define X86_MATCH_INTEL_FAM6_MODEL(model, data) \ 161 X86_MATCH_VENDOR_FAM_MODEL(INTEL, 6, INTEL_FAM6_##model, data) 162 163 #define X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS(model, steppings, data) \ 164 X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(INTEL, 6, INTEL_FAM6_##model, \ 165 steppings, X86_FEATURE_ANY, data) 166 167 /* 168 * Match specific microcode revisions. 169 * 170 * vendor/family/model/stepping must be all set. 171 * 172 * Only checks against the boot CPU. When mixed-stepping configs are 173 * valid for a CPU model, add a quirk for every valid stepping and 174 * do the fine-tuning in the quirk handler. 175 */ 176 177 struct x86_cpu_desc { 178 u8 x86_family; 179 u8 x86_vendor; 180 u8 x86_model; 181 u8 x86_stepping; 182 u32 x86_microcode_rev; 183 }; 184 185 #define INTEL_CPU_DESC(model, stepping, revision) { \ 186 .x86_family = 6, \ 187 .x86_vendor = X86_VENDOR_INTEL, \ 188 .x86_model = (model), \ 189 .x86_stepping = (stepping), \ 190 .x86_microcode_rev = (revision), \ 191 } 192 193 extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); 194 extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table); 195 196 #endif /* _ASM_X86_CPU_DEVICE_ID */ 197