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Add clwb().

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Reviewed by:	alc, markj
Sponsored by:	The FreeBSD Foundation
Approved by:	re (gjb)
MFC after:	3 days
Differential revision:	https://reviews.freebsd.org/D17070
This commit is contained in:
kib 2018-10-16 17:00:42 +00:00
parent 86890cbdd5
commit fcee4d935b
1 changed files with 7 additions and 0 deletions
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7
sys/amd64/include/cpufunc.h
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@ -115,6 +115,13 @@ clflushopt(u_long addr)
__asm __volatile(".byte 0x66;clflush %0" : : "m" (*(char *)addr));
}
static __inline void
clwb(u_long addr)
{
__asm __volatile("clwb %0" : : "m" (*(char *)addr));
}
static __inline void
clts(void)
{