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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Fri, 23 Oct 2015 11:45:38 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r289824 - in head/sys: amd64/include i386/include
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Author: kib
Date: Fri Oct 23 11:45:38 2015
New Revision: 289824
URL: https://svnweb.freebsd.org/changeset/base/289824

Log:
  Add CLFLUSHOPT instruction wrappers.
  
  Sponsored by:	The FreeBSD Foundation
  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	Fri Oct 23 11:43:56 2015	(r289823)
+++ head/sys/amd64/include/cpufunc.h	Fri Oct 23 11:45:38 2015	(r289824)
@@ -107,6 +107,13 @@ clflush(u_long addr)
 }
 
 static __inline void
+clflushopt(u_long addr)
+{
+
+	__asm __volatile(".byte 0x66;clflush %0" : : "m" (*(char *)addr));
+}
+
+static __inline void
 clts(void)
 {
 

Modified: head/sys/i386/include/cpufunc.h
==============================================================================
--- head/sys/i386/include/cpufunc.h	Fri Oct 23 11:43:56 2015	(r289823)
+++ head/sys/i386/include/cpufunc.h	Fri Oct 23 11:45:38 2015	(r289824)
@@ -86,6 +86,13 @@ clflush(u_long addr)
 }
 
 static __inline void
+clflushopt(u_long addr)
+{
+
+	__asm __volatile(".byte 66;clflush %0" : : "m" (*(char *)addr));
+}
+
+static __inline void
 clts(void)
 {