From owner-svn-src-head@FreeBSD.ORG  Wed Aug  1 17:24:54 2012
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 3BB601065670;
	Wed,  1 Aug 2012 17:24:54 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 267888FC14;
	Wed,  1 Aug 2012 17:24:54 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q71HOs8Q079461;
	Wed, 1 Aug 2012 17:24:54 GMT (envelope-from kib@svn.freebsd.org)
Received: (from kib@localhost)
	by svn.freebsd.org (8.14.4/8.14.4/Submit) id q71HOrY0079458;
	Wed, 1 Aug 2012 17:24:53 GMT (envelope-from kib@svn.freebsd.org)
Message-Id: <201208011724.q71HOrY0079458@svn.freebsd.org>
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 1 Aug 2012 17:24:53 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r238972 - in head/sys: amd64/include i386/include
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 01 Aug 2012 17:24:54 -0000

Author: kib
Date: Wed Aug  1 17:24:53 2012
New Revision: 238972
URL: http://svn.freebsd.org/changeset/base/238972

Log:
  Add lfence().
  
  MFC after:	1 week

Modified:
  head/sys/amd64/include/cpufunc.h
  head/sys/i386/include/cpufunc.h

Modified: head/sys/amd64/include/cpufunc.h
==============================================================================
--- head/sys/amd64/include/cpufunc.h	Wed Aug  1 16:32:44 2012	(r238971)
+++ head/sys/amd64/include/cpufunc.h	Wed Aug  1 17:24:53 2012	(r238972)
@@ -290,6 +290,13 @@ popcntq(u_long mask)
 }
 
 static __inline void
+lfence(void)
+{
+
+	__asm __volatile("lfence" : : : "memory");
+}
+
+static __inline void
 mfence(void)
 {
 

Modified: head/sys/i386/include/cpufunc.h
==============================================================================
--- head/sys/i386/include/cpufunc.h	Wed Aug  1 16:32:44 2012	(r238971)
+++ head/sys/i386/include/cpufunc.h	Wed Aug  1 17:24:53 2012	(r238972)
@@ -155,6 +155,13 @@ cpu_mwait(u_long extensions, u_int hints
 }
 
 static __inline void
+lfence(void)
+{
+
+	__asm __volatile("lfence" : : : "memory");
+}
+
+static __inline void
 mfence(void)
 {