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2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d 
 kernel/arch/x86/include/asm/cpu_device_id.h
....@@ -1,16 +1,26 @@
11 /* SPDX-License-Identifier: GPL-2.0 */
2
-#ifndef _CPU_DEVICE_ID
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-#define _CPU_DEVICE_ID 1
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+#ifndef _ASM_X86_CPU_DEVICE_ID
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+#define _ASM_X86_CPU_DEVICE_ID
44 
55 /*
66  * Declare drivers belonging to specific x86 CPUs
77  * 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.
811  */
9
-
1012 #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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+
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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
1122 
1223 #define X86_STEPPINGS(mins, maxs)    GENMASK(maxs, mins)
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-
1424 /**
1525  * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching
1626  * @_vendor:	The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
....@@ -23,8 +33,11 @@
2333  *		format is unsigned long. The supplied value, pointer
2434  *		etc. is casted to unsigned long internally.
2535  *
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- * Backport version to keep the SRBDS pile consistant. No shorter variants
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- * required for this.
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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.
2841  */
2942 #define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \
3043 						    _steppings, _feature, _data) { \
....@@ -36,6 +49,148 @@
3649 	.driver_data	= (unsigned long) _data				\
3750 }
3851 
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-extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
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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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-#endif
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+
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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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+/*
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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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+
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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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+
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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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+
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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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+
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+#endif /* _ASM_X86_CPU_DEVICE_ID */