tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
x86, cpu: Add CPU flags for F16C and RDRND
Add support for the newly documented F16C (16-bit floating point
conversions) and RDRND (RDRAND instruction) CPU feature flags.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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+2
arch/x86/include/asm/cpufeature.h
+2
arch/x86/include/asm/cpufeature.h
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#define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */
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#define X86_FEATURE_OSXSAVE (4*32+27) /* "" XSAVE enabled in the OS */
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#define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */
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#define X86_FEATURE_F16C (4*32+29) /* 16-bit fp conversions */
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#define X86_FEATURE_RDRND (4*32+30) /* The RDRAND instruction */
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#define X86_FEATURE_HYPERVISOR (4*32+31) /* Running on a hypervisor */
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/* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */