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x86/cpu: Introduce INTEL_CPU_FAM*() helper macros

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These macros are often used by drivers and there exists already a lot of
duplication as ICPU() macro across the drivers.

Provide a generic x86 macro for users.

Note, as Ingo Molnar pointed out this has a hidden issue when a driver
needs to preserve const qualifier. Though, it would be addressed
separately at some point.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Link: https://lkml.kernel.org/r/20180629193113.84425-2-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2018-06-29 22:31:08 +03:00 committed by Thomas Gleixner
parent dbd0fbc76c
commit e2ce67b2b3
1 changed files with 13 additions and 0 deletions
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13
arch/x86/include/asm/intel-family.h
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@ -76,4 +76,17 @@
#define INTEL_FAM6_XEON_PHI_KNL 0x57 /* Knights Landing */
#define INTEL_FAM6_XEON_PHI_KNM 0x85 /* Knights Mill */
/* Useful macros */
#define INTEL_CPU_FAM_ANY(_family, _model, _driver_data) \
{ \
.vendor = X86_VENDOR_INTEL, \
.family = _family, \
.model = _model, \
.feature = X86_FEATURE_ANY, \
.driver_data = (kernel_ulong_t)&_driver_data \
}
#define INTEL_CPU_FAM6(_model, _driver_data) \
INTEL_CPU_FAM_ANY(6, INTEL_FAM6_##_model, _driver_data)
#endif /* _ASM_X86_INTEL_FAMILY_H */