/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_CPU_DEVICE_ID #define _ASM_X86_CPU_DEVICE_ID /* * Can't use <linux/bitfield.h> because it generates expressions that * cannot be used in structure initializers. Bitfield construction * here must match the union in struct cpuinfo_86: * union { * struct { * __u8 x86_model; * __u8 x86; * __u8 x86_vendor; * __u8 x86_reserved; * }; * __u32 x86_vfm; * }; */ #define VFM_MODEL_BIT 0 #define VFM_FAMILY_BIT 8 #define VFM_VENDOR_BIT 16 #define VFM_RSVD_BIT 24 #define VFM_MODEL_MASK GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT) #define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT) #define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT) #define VFM_MODEL(vfm) (((vfm) & VFM_MODEL_MASK) >> VFM_MODEL_BIT) #define VFM_FAMILY(vfm) (((vfm) & VFM_FAMILY_MASK) >> VFM_FAMILY_BIT) #define VFM_VENDOR(vfm) (((vfm) & VFM_VENDOR_MASK) >> VFM_VENDOR_BIT) #define VFM_MAKE(_vendor, _family, _model) ( \ ((_model) << VFM_MODEL_BIT) | \ ((_family) << VFM_FAMILY_BIT) | \ ((_vendor) << VFM_VENDOR_BIT) \ ) /* * Declare drivers belonging to specific x86 CPUs * Similar in spirit to pci_device_id and related PCI functions * * The wildcard initializers are in mod_devicetable.h because * file2alias needs them. Sigh. */ #include <linux/mod_devicetable.h> /* Get the INTEL_FAM* model defines */ #include <asm/intel-family.h> /* And the X86_VENDOR_* ones */ #include <asm/processor.h> /* Centaur FAM6 models */ #define X86_CENTAUR_FAM6_C7_A 0xa #define X86_CENTAUR_FAM6_C7_D 0xd #define X86_CENTAUR_FAM6_NANO 0xf /* x86_cpu_id::flags */ #define X86_CPU_ID_FLAG_ENTRY_VALID BIT(0) /** * X86_MATCH_CPU - Base macro for CPU matching * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY * The name is expanded to X86_VENDOR_@_vendor * @_family: The family number or X86_FAMILY_ANY * @_model: The model number, model constant or X86_MODEL_ANY * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY * @_data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. * * Use only if you need all selectors. Otherwise use one of the shorter * macros of the X86_MATCH_* family. If there is no matching shorthand * macro, consider to add one. If you really need to wrap one of the macros * into another macro at the usage site for good reasons, then please * start this local macro with X86_MATCH to allow easy grepping. */ #define X86_MATCH_CPU(_vendor, _family, _model, _steppings, _feature, _type, _data) { \ .vendor = _vendor, \ .family = _family, \ .model = _model, \ .steppings = _steppings, \ .feature = _feature, \ .flags = X86_CPU_ID_FLAG_ENTRY_VALID, \ .type = _type, \ .driver_data = (unsigned long) _data \ } /** * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY * The name is expanded to X86_VENDOR_@vendor * @family: The family number or X86_FAMILY_ANY * @feature: A X86_FEATURE bit * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. */ #define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ X86_MATCH_CPU(X86_VENDOR_##vendor, family, X86_MODEL_ANY, \ X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY * The name is expanded to X86_VENDOR_@vendor * @feature: A X86_FEATURE bit * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. */ #define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ X86_MATCH_CPU(X86_VENDOR_##vendor, X86_FAMILY_ANY, X86_MODEL_ANY, \ X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_FEATURE - Macro for matching a CPU feature * @feature: A X86_FEATURE bit * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. */ #define X86_MATCH_FEATURE(feature, data) \ X86_MATCH_CPU(X86_VENDOR_ANY, X86_FAMILY_ANY, X86_MODEL_ANY, \ X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY * The name is expanded to X86_VENDOR_@vendor * @family: The family number or X86_FAMILY_ANY * @model: The model number, model constant or X86_MODEL_ANY * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. */ #define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ X86_MATCH_CPU(X86_VENDOR_##vendor, family, model, X86_STEPPING_ANY, \ X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VENDOR_FAM - Match vendor and family * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY * The name is expanded to X86_VENDOR_@vendor * @family: The family number or X86_FAMILY_ANY * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is casted to unsigned long internally. */ #define X86_MATCH_VENDOR_FAM(vendor, family, data) \ X86_MATCH_CPU(X86_VENDOR_##vendor, family, X86_MODEL_ANY, \ X86_STEPPING_ANY, X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VFM - Match encoded vendor/family/model * @vfm: Encoded 8-bits each for vendor, family, model * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is cast to unsigned long internally. */ #define X86_MATCH_VFM(vfm, data) \ X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ X86_STEPPING_ANY, X86_FEATURE_ANY, X86_CPU_TYPE_ANY, data) #define __X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins) /** * X86_MATCH_VFM_STEPS - Match encoded vendor/family/model and steppings * range. * @vfm: Encoded 8-bits each for vendor, family, model * @min_step: Lowest stepping number to match * @max_step: Highest stepping number to match * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is cast to unsigned long internally. */ #define X86_MATCH_VFM_STEPS(vfm, min_step, max_step, data) \ X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ __X86_STEPPINGS(min_step, max_step), X86_FEATURE_ANY, \ X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VFM_FEATURE - Match encoded vendor/family/model/feature * @vfm: Encoded 8-bits each for vendor, family, model * @feature: A X86_FEATURE bit * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is cast to unsigned long internally. */ #define X86_MATCH_VFM_FEATURE(vfm, feature, data) \ X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ X86_STEPPING_ANY, feature, X86_CPU_TYPE_ANY, data) /** * X86_MATCH_VFM_CPU_TYPE - Match encoded vendor/family/model/type * @vfm: Encoded 8-bits each for vendor, family, model * @type: CPU type e.g. P-core, E-core * @data: Driver specific data or NULL. The internal storage * format is unsigned long. The supplied value, pointer * etc. is cast to unsigned long internally. */ #define X86_MATCH_VFM_CPU_TYPE(vfm, type, data) \ X86_MATCH_CPU(VFM_VENDOR(vfm), VFM_FAMILY(vfm), VFM_MODEL(vfm), \ X86_STEPPING_ANY, X86_FEATURE_ANY, type, data) extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); extern bool x86_match_min_microcode_rev(const struct x86_cpu_id *table); #endif /* _ASM_X86_CPU_DEVICE_ID */
