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_CPU - 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_CPU(_vendor, _family, _model, _steppings, _feature, _type, _data) { \ 78 .vendor = _vendor, \ 79 .family = _family, \ 80 .model = _model, \ 81 .steppings = _steppings, \ 82 .feature = _feature, \ 83 .flags = X86_CPU_ID_FLAG_ENTRY_VALID, \ 84 .type = _type, \ 85 .driver_data = (unsigned long) _data \ 86 } 87 88 /** 89 * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature 90 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 91 * The name is expanded to X86_VENDOR_@vendor 92 * @family: The family number or X86_FAMILY_ANY 93 * @feature: A X86_FEATURE bit 94 * @data: Driver specific data or NULL. The internal storage 95 * format is unsigned long. The supplied value, pointer 96 * etc. is casted to unsigned long internally. 97 */ 98 #define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ 99 X86_MATCH_CPU(X86_VENDOR_##vendor, family, X86_MODEL_ANY, \ 100 X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) 101 102 /** 103 * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature 104 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 105 * The name is expanded to X86_VENDOR_@vendor 106 * @feature: A X86_FEATURE bit 107 * @data: Driver specific data or NULL. The internal storage 108 * format is unsigned long. The supplied value, pointer 109 * etc. is casted to unsigned long internally. 110 */ 111 #define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ 112 X86_MATCH_CPU(X86_VENDOR_##vendor, X86_FAMILY_ANY, X86_MODEL_ANY, \ 113 X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) 114 115 /** 116 * X86_MATCH_FEATURE - Macro for matching a CPU feature 117 * @feature: A X86_FEATURE bit 118 * @data: Driver specific data or NULL. The internal storage 119 * format is unsigned long. The supplied value, pointer 120 * etc. is casted to unsigned long internally. 121 */ 122 #define X86_MATCH_FEATURE(feature, data) \ 123 X86_MATCH_CPU(X86_VENDOR_ANY, X86_FAMILY_ANY, X86_MODEL_ANY, \ 124 X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) 125 126 /** 127 * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model 128 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 129 * The name is expanded to X86_VENDOR_@vendor 130 * @family: The family number or X86_FAMILY_ANY 131 * @model: The model number, model constant or X86_MODEL_ANY 132 * @data: Driver specific data or NULL. The internal storage 133 * format is unsigned long. The supplied value, pointer 134 * etc. is casted to unsigned long internally. 135 */ 136 #define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ 137 X86_MATCH_CPU(X86_VENDOR_##vendor, family, model, X86_STEPPING_ANY, \ 138 X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) 139 140 /** 141 * X86_MATCH_VENDOR_FAM - Match vendor and family 142 * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY 143 * The name is expanded to X86_VENDOR_@vendor 144 * @family: The family number or X86_FAMILY_ANY 145 * @data: Driver specific data or NULL. The internal storage 146 * format is unsigned long. The supplied value, pointer 147 * etc. is casted to unsigned long internally. 148 */ 149 #define X86_MATCH_VENDOR_FAM(vendor, family, data) \ 150 X86_MATCH_CPU(X86_VENDOR_##vendor, family, X86_MODEL_ANY, \ 151 X86_STEPPING_ANY, X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) 152 153 /** 154 * X86_MATCH_VFM - Match encoded vendor/family/model 155 * @vfm: Encoded 8-bits each for vendor, family, model 156 * @data: Driver specific data or NULL. The internal storage 157 * format is unsigned long. The supplied value, pointer 158 * etc. is cast to unsigned long internally. 159 */ 160 #define X86_MATCH_VFM(vfm, data) \ 161 X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ 162 X86_STEPPING_ANY, X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) 163 164 #define __X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins) 165 /** 166 * X86_MATCH_VFM_STEPS - Match encoded vendor/family/model and steppings 167 * range. 168 * @vfm: Encoded 8-bits each for vendor, family, model 169 * @min_step: Lowest stepping number to match 170 * @max_step: Highest stepping number to match 171 * @data: Driver specific data or NULL. The internal storage 172 * format is unsigned long. The supplied value, pointer 173 * etc. is cast to unsigned long internally. 174 */ 175 #define X86_MATCH_VFM_STEPS(vfm, min_step, max_step, data) \ 176 X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ 177 __X86_STEPPINGS(min_step, max_step), X86_FEATURE_ANY, \ 178 X86_CPU_TYPE_ANY, data) 179 180 /** 181 * X86_MATCH_VFM_FEATURE - Match encoded vendor/family/model/feature 182 * @vfm: Encoded 8-bits each for vendor, family, model 183 * @feature: A X86_FEATURE bit 184 * @data: Driver specific data or NULL. The internal storage 185 * format is unsigned long. The supplied value, pointer 186 * etc. is cast to unsigned long internally. 187 */ 188 #define X86_MATCH_VFM_FEATURE(vfm, feature, data) \ 189 X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ 190 X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) 191 192 /** 193 * X86_MATCH_VFM_CPU_TYPE - Match encoded vendor/family/model/type 194 * @vfm: Encoded 8-bits each for vendor, family, model 195 * @type: CPU type e.g. P-core, E-core 196 * @data: Driver specific data or NULL. The internal storage 197 * format is unsigned long. The supplied value, pointer 198 * etc. is cast to unsigned long internally. 199 */ 200 #define X86_MATCH_VFM_CPU_TYPE(vfm, type, data) \ 201 X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ 202 X86_STEPPING_ANY, X86_FEATURE_ANY, type, data) 203 204 extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); 205 extern bool x86_match_min_microcode_rev(const struct x86_cpu_id *table); 206 207 #endif /* _ASM_X86_CPU_DEVICE_ID */ 208