Date: Thu, 30 Aug 2012 11:00:01 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r239903 - in stable/8/sys: amd64/include i386/include Message-ID: <201208301100.q7UB01CP029040@svn.freebsd.org>
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Author: kib Date: Thu Aug 30 11:00:00 2012 New Revision: 239903 URL: http://svn.freebsd.org/changeset/base/239903 Log: MFC r238972: Add lfence(). Modified: stable/8/sys/amd64/include/cpufunc.h stable/8/sys/i386/include/cpufunc.h Directory Properties: stable/8/sys/ (props changed) Modified: stable/8/sys/amd64/include/cpufunc.h ============================================================================== --- stable/8/sys/amd64/include/cpufunc.h Thu Aug 30 10:38:41 2012 (r239902) +++ stable/8/sys/amd64/include/cpufunc.h Thu Aug 30 11:00:00 2012 (r239903) @@ -274,6 +274,13 @@ outw(u_int port, u_short data) } static __inline void +lfence(void) +{ + + __asm __volatile("lfence" : : : "memory"); +} + +static __inline void mfence(void) { Modified: stable/8/sys/i386/include/cpufunc.h ============================================================================== --- stable/8/sys/i386/include/cpufunc.h Thu Aug 30 10:38:41 2012 (r239902) +++ stable/8/sys/i386/include/cpufunc.h Thu Aug 30 11:00:00 2012 (r239903) @@ -146,6 +146,13 @@ cpu_mwait(int extensions, int hints) } static __inline void +lfence(void) +{ + + __asm __volatile("lfence" : : : "memory"); +} + +static __inline void mfence(void) {
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