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d8422f6bb0
... to match Intel family 6 CPUs with steppings. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Mark Gross <mgross@linux.intel.com> Link: https://lkml.kernel.org/r/20200506071516.25445-3-bp@alien8.de
197 lines
7.4 KiB
C
197 lines
7.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_CPU_DEVICE_ID
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#define _ASM_X86_CPU_DEVICE_ID
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/*
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* Declare drivers belonging to specific x86 CPUs
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* Similar in spirit to pci_device_id and related PCI functions
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*
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* The wildcard initializers are in mod_devicetable.h because
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* file2alias needs them. Sigh.
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*/
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#include <linux/mod_devicetable.h>
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/* Get the INTEL_FAM* model defines */
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#include <asm/intel-family.h>
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/* And the X86_VENDOR_* ones */
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#include <asm/processor.h>
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/* Centaur FAM6 models */
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#define X86_CENTAUR_FAM6_C7_A 0xa
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#define X86_CENTAUR_FAM6_C7_D 0xd
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#define X86_CENTAUR_FAM6_NANO 0xf
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#define X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins)
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/**
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* X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching
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* @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@_vendor
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* @_family: The family number or X86_FAMILY_ANY
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* @_model: The model number, model constant or X86_MODEL_ANY
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* @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY
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* @_feature: A X86_FEATURE bit or X86_FEATURE_ANY
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* @_data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* Use only if you need all selectors. Otherwise use one of the shorter
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* macros of the X86_MATCH_* family. If there is no matching shorthand
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* macro, consider to add one. If you really need to wrap one of the macros
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* into another macro at the usage site for good reasons, then please
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* start this local macro with X86_MATCH to allow easy grepping.
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*/
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#define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \
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_steppings, _feature, _data) { \
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.vendor = X86_VENDOR_##_vendor, \
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.family = _family, \
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.model = _model, \
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.steppings = _steppings, \
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.feature = _feature, \
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.driver_data = (unsigned long) _data \
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}
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/**
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* X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Macro for CPU matching
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* @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@_vendor
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* @_family: The family number or X86_FAMILY_ANY
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* @_model: The model number, model constant or X86_MODEL_ANY
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* @_feature: A X86_FEATURE bit or X86_FEATURE_ANY
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* @_data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* The steppings arguments of X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE() is
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* set to wildcards.
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*/
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#define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, feature, data) \
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X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(vendor, family, model, \
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X86_STEPPING_ANY, feature, data)
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/**
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* X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature
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* @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@vendor
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* @family: The family number or X86_FAMILY_ANY
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* @feature: A X86_FEATURE bit
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
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* set to wildcards.
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*/
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#define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \
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X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \
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X86_MODEL_ANY, feature, data)
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/**
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* X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature
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* @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@vendor
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* @feature: A X86_FEATURE bit
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
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* set to wildcards.
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*/
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#define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \
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X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data)
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/**
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* X86_MATCH_FEATURE - Macro for matching a CPU feature
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* @feature: A X86_FEATURE bit
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
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* set to wildcards.
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*/
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#define X86_MATCH_FEATURE(feature, data) \
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X86_MATCH_VENDOR_FEATURE(ANY, feature, data)
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/**
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* X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model
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* @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@vendor
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* @family: The family number or X86_FAMILY_ANY
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* @model: The model number, model constant or X86_MODEL_ANY
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
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* set to wildcards.
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*/
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#define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \
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X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \
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X86_FEATURE_ANY, data)
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/**
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* X86_MATCH_VENDOR_FAM - Match vendor and family
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* @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
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* The name is expanded to X86_VENDOR_@vendor
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* @family: The family number or X86_FAMILY_ANY
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
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* set of wildcards.
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*/
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#define X86_MATCH_VENDOR_FAM(vendor, family, data) \
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X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data)
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/**
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* X86_MATCH_INTEL_FAM6_MODEL - Match vendor INTEL, family 6 and model
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* @model: The model name without the INTEL_FAM6_ prefix or ANY
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* The model name is expanded to INTEL_FAM6_@model internally
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* @data: Driver specific data or NULL. The internal storage
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* format is unsigned long. The supplied value, pointer
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* etc. is casted to unsigned long internally.
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*
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* The vendor is set to INTEL, the family to 6 and all other missing
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* arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are set to wildcards.
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*
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* See X86_MATCH_VENDOR_FAM_MODEL_FEATURE() for further information.
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*/
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#define X86_MATCH_INTEL_FAM6_MODEL(model, data) \
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X86_MATCH_VENDOR_FAM_MODEL(INTEL, 6, INTEL_FAM6_##model, data)
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#define X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS(model, steppings, data) \
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X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(INTEL, 6, INTEL_FAM6_##model, \
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steppings, X86_FEATURE_ANY, data)
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/*
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* Match specific microcode revisions.
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*
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* vendor/family/model/stepping must be all set.
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*
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* Only checks against the boot CPU. When mixed-stepping configs are
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* valid for a CPU model, add a quirk for every valid stepping and
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* do the fine-tuning in the quirk handler.
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*/
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struct x86_cpu_desc {
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u8 x86_family;
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u8 x86_vendor;
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u8 x86_model;
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u8 x86_stepping;
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u32 x86_microcode_rev;
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};
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#define INTEL_CPU_DESC(model, stepping, revision) { \
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.x86_family = 6, \
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.x86_vendor = X86_VENDOR_INTEL, \
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.x86_model = (model), \
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.x86_stepping = (stepping), \
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.x86_microcode_rev = (revision), \
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}
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extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
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extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table);
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#endif /* _ASM_X86_CPU_DEVICE_ID */
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