1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_CPU_DEVICE_ID 3 #define _ASM_X86_CPU_DEVICE_ID 4 5 /* 6 * Can't use <linux/bitfield.h> because it generates expressions that 7 * cannot be used in structure initializers. Bitfield construction 8 * here must match the union in struct cpuinfo_86: 9 * union { 10 * struct { 11 * __u8 x86_model; 12 * __u8 x86; 13 * __u8 x86_vendor; 14 * __u8 x86_reserved; 15 * }; 16 * __u32 x86_vfm; 17 * }; 18 */ 19 #define VFM_MODEL_BIT 0 20 #define VFM_FAMILY_BIT 8 21 #define VFM_VENDOR_BIT 16 22 #define VFM_RSVD_BIT 24 23 24 #define VFM_MODEL_MASK GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT) 25 #define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT) 26 #define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT) 27 28 #define VFM_MODEL(vfm) (((vfm) & VFM_MODEL_MASK) >> VFM_MODEL_BIT) 29 #define VFM_FAMILY(vfm) (((vfm) & VFM_FAMILY_MASK) >> VFM_FAMILY_BIT) 30 #define VFM_VENDOR(vfm) (((vfm) & VFM_VENDOR_MASK) >> VFM_VENDOR_BIT) 31 32 #define VFM_MAKE(_vendor, _family, _model) ( \ 33 ((_model) << VFM_MODEL_BIT) | \ 34 ((_family) << VFM_FAMILY_BIT) | \ 35 ((_vendor) << VFM_VENDOR_BIT) \ 36 ) 37 38 /* 39 * Declare drivers belonging to specific x86 CPUs 40 * Similar in spirit to pci_device_id and related PCI functions 41 * 42 * The wildcard initializers are in mod_devicetable.h because 43 * file2alias needs them. Sigh. 44 */ 45 #include <linux/mod_devicetable.h> 46 /* Get the INTEL_FAM* model defines */ 47 #include <asm/intel-family.h> 48 /* And the X86_VENDOR_* ones */ 49 #include <asm/processor.h> 50 51 /* Centaur FAM6 models */ 52 #define X86_CENTAUR_FAM6_C7_A 0xa 53 #define X86_CENTAUR_FAM6_C7_D 0xd 54 #define X86_CENTAUR_FAM6_NANO 0xf 55 56 /* x86_cpu_id::flags */ 57 #define X86_CPU_ID_FLAG_ENTRY_VALID BIT(0) 58 59 /** 60 * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching 61 * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 62 * The name is expanded to X86_VENDOR_@_vendor 63 * @_family: The family number or X86_FAMILY_ANY 64 * @_model: The model number, model constant or X86_MODEL_ANY 65 * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY 66 * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY 67 * @_data: Driver specific data or NULL. The internal storage 68 * format is unsigned long. The supplied value, pointer 69 * etc. is casted to unsigned long internally. 70 * 71 * Use only if you need all selectors. Otherwise use one of the shorter 72 * macros of the X86_MATCH_* family. If there is no matching shorthand 73 * macro, consider to add one. If you really need to wrap one of the macros 74 * into another macro at the usage site for good reasons, then please 75 * start this local macro with X86_MATCH to allow easy grepping. 76 */ 77 #define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \ 78 _steppings, _feature, _data) { \ 79 .vendor = X86_VENDOR_##_vendor, \ 80 .family = _family, \ 81 .model = _model, \ 82 .steppings = _steppings, \ 83 .feature = _feature, \ 84 .flags = X86_CPU_ID_FLAG_ENTRY_VALID, \ 85 .driver_data = (unsigned long) _data \ 86 } 87 88 #define X86_MATCH_VENDORID_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \ 89 _steppings, _feature, _data) { \ 90 .vendor = _vendor, \ 91 .family = _family, \ 92 .model = _model, \ 93 .steppings = _steppings, \ 94 .feature = _feature, \ 95 .flags = X86_CPU_ID_FLAG_ENTRY_VALID, \ 96 .driver_data = (unsigned long) _data \ 97 } 98 99 /** 100 * X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Macro for CPU matching 101 * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 102 * The name is expanded to X86_VENDOR_@_vendor 103 * @_family: The family number or X86_FAMILY_ANY 104 * @_model: The model number, model constant or X86_MODEL_ANY 105 * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY 106 * @_data: Driver specific data or NULL. The internal storage 107 * format is unsigned long. The supplied value, pointer 108 * etc. is casted to unsigned long internally. 109 * 110 * The steppings arguments of X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE() is 111 * set to wildcards. 112 */ 113 #define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, feature, data) \ 114 X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(vendor, family, model, \ 115 X86_STEPPING_ANY, feature, data) 116 117 /** 118 * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature 119 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 120 * The name is expanded to X86_VENDOR_@vendor 121 * @family: The family number or X86_FAMILY_ANY 122 * @feature: A X86_FEATURE bit 123 * @data: Driver specific data or NULL. The internal storage 124 * format is unsigned long. The supplied value, pointer 125 * etc. is casted to unsigned long internally. 126 * 127 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 128 * set to wildcards. 129 */ 130 #define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ 131 X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \ 132 X86_MODEL_ANY, feature, data) 133 134 /** 135 * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature 136 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 137 * The name is expanded to X86_VENDOR_@vendor 138 * @feature: A X86_FEATURE bit 139 * @data: Driver specific data or NULL. The internal storage 140 * format is unsigned long. The supplied value, pointer 141 * etc. is casted to unsigned long internally. 142 * 143 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 144 * set to wildcards. 145 */ 146 #define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ 147 X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data) 148 149 /** 150 * X86_MATCH_FEATURE - Macro for matching a CPU feature 151 * @feature: A X86_FEATURE bit 152 * @data: Driver specific data or NULL. The internal storage 153 * format is unsigned long. The supplied value, pointer 154 * etc. is casted to unsigned long internally. 155 * 156 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 157 * set to wildcards. 158 */ 159 #define X86_MATCH_FEATURE(feature, data) \ 160 X86_MATCH_VENDOR_FEATURE(ANY, feature, data) 161 162 /** 163 * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model 164 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 165 * The name is expanded to X86_VENDOR_@vendor 166 * @family: The family number or X86_FAMILY_ANY 167 * @model: The model number, model constant or X86_MODEL_ANY 168 * @data: Driver specific data or NULL. The internal storage 169 * format is unsigned long. The supplied value, pointer 170 * etc. is casted to unsigned long internally. 171 * 172 * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 173 * set to wildcards. 174 */ 175 #define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ 176 X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \ 177 X86_FEATURE_ANY, data) 178 179 /** 180 * X86_MATCH_VENDOR_FAM - Match vendor and family 181 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 182 * The name is expanded to X86_VENDOR_@vendor 183 * @family: The family number or X86_FAMILY_ANY 184 * @data: Driver specific data or NULL. The internal storage 185 * format is unsigned long. The supplied value, pointer 186 * etc. is casted to unsigned long internally. 187 * 188 * All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are 189 * set of wildcards. 190 */ 191 #define X86_MATCH_VENDOR_FAM(vendor, family, data) \ 192 X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data) 193 194 /** 195 * X86_MATCH_VFM - Match encoded vendor/family/model 196 * @vfm: Encoded 8-bits each for vendor, family, model 197 * @data: Driver specific data or NULL. The internal storage 198 * format is unsigned long. The supplied value, pointer 199 * etc. is cast to unsigned long internally. 200 * 201 * Stepping and feature are set to wildcards 202 */ 203 #define X86_MATCH_VFM(vfm, data) \ 204 X86_MATCH_VENDORID_FAM_MODEL_STEPPINGS_FEATURE( \ 205 VFM_VENDOR(vfm), \ 206 VFM_FAMILY(vfm), \ 207 VFM_MODEL(vfm), \ 208 X86_STEPPING_ANY, X86_FEATURE_ANY, data) 209 210 #define __X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins) 211 /** 212 * X86_MATCH_VFM_STEPPINGS - Match encoded vendor/family/model/stepping 213 * @vfm: Encoded 8-bits each for vendor, family, model 214 * @steppings: Bitmask of steppings to match 215 * @data: Driver specific data or NULL. The internal storage 216 * format is unsigned long. The supplied value, pointer 217 * etc. is cast to unsigned long internally. 218 * 219 * feature is set to wildcard 220 */ 221 #define X86_MATCH_VFM_STEPS(vfm, min_step, max_step, data) \ 222 X86_MATCH_VENDORID_FAM_MODEL_STEPPINGS_FEATURE( \ 223 VFM_VENDOR(vfm), \ 224 VFM_FAMILY(vfm), \ 225 VFM_MODEL(vfm), \ 226 __X86_STEPPINGS(min_step, max_step), \ 227 X86_FEATURE_ANY, data) 228 229 /** 230 * X86_MATCH_VFM_FEATURE - Match encoded vendor/family/model/feature 231 * @vfm: Encoded 8-bits each for vendor, family, model 232 * @feature: A X86_FEATURE bit 233 * @data: Driver specific data or NULL. The internal storage 234 * format is unsigned long. The supplied value, pointer 235 * etc. is cast to unsigned long internally. 236 * 237 * Steppings is set to wildcard 238 */ 239 #define X86_MATCH_VFM_FEATURE(vfm, feature, data) \ 240 X86_MATCH_VENDORID_FAM_MODEL_STEPPINGS_FEATURE( \ 241 VFM_VENDOR(vfm), \ 242 VFM_FAMILY(vfm), \ 243 VFM_MODEL(vfm), \ 244 X86_STEPPING_ANY, feature, data) 245 246 extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); 247 extern bool x86_match_min_microcode_rev(const struct x86_cpu_id *table); 248 249 #endif /* _ASM_X86_CPU_DEVICE_ID */ 250