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)
{
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