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Subject[tip:x86/timers] x86/cpu: Introduce INTEL_CPU_FAM*() helper macros
Commit-ID:  e2ce67b2b34b6e9d77da2f375dba5b525508f7df
Gitweb: https://git.kernel.org/tip/e2ce67b2b34b6e9d77da2f375dba5b525508f7df
Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
AuthorDate: Fri, 29 Jun 2018 22:31:08 +0300
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 3 Jul 2018 13:08:20 +0200

x86/cpu: Introduce INTEL_CPU_FAM*() helper macros

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

---
arch/x86/include/asm/intel-family.h | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index cf090e584202..7ed08a7c3398 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -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 */
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