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b399151cb4
x86_mask is a confusing name which is hard to associate with the processor's stepping. Additionally, correct an indent issue in lib/cpu.c. Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com> [ Updated it to more recent kernels. ] Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bp@alien8.de Cc: tony.luck@intel.com Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
36 lines
562 B
C
36 lines
562 B
C
#include <linux/types.h>
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#include <linux/export.h>
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unsigned int x86_family(unsigned int sig)
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{
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unsigned int x86;
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x86 = (sig >> 8) & 0xf;
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if (x86 == 0xf)
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x86 += (sig >> 20) & 0xff;
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return x86;
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}
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EXPORT_SYMBOL_GPL(x86_family);
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unsigned int x86_model(unsigned int sig)
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{
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unsigned int fam, model;
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fam = x86_family(sig);
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model = (sig >> 4) & 0xf;
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if (fam >= 0x6)
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model += ((sig >> 16) & 0xf) << 4;
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return model;
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}
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EXPORT_SYMBOL_GPL(x86_model);
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unsigned int x86_stepping(unsigned int sig)
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{
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return sig & 0xf;
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}
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EXPORT_SYMBOL_GPL(x86_stepping);
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