x86, cpufeature: Add CPU feature bit for enhanced REP MOVSB/STOSB

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Intel processors are adding enhancements to REP MOVSB/STOSB and the use of
REP MOVSB/STOSB for optimal memcpy/memset or similar functions is recommended.
Enhancement availability is indicated by CPUID.7.0.EBX[9] (Enhanced REP MOVSB/
STOSB).

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1305671358-14478-2-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Fenghua Yu 2011-05-17 15:29:10 -07:00 • committed by H. Peter Anvin

parent 2494b030ba

commit 724a92ee45

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arch/x86/include/asm/cpufeature.h

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