OpenSolaris Launch

1 files changed, 79 insertions, 0 deletions

diff --git a/usr/src/uts/intel/asm/clock.h b/usr/src/uts/intel/asm/clock.h
new file mode 100644
index 0000000000..6effcbc30a
--- /dev/null
+++ b/usr/src/uts/intel/asm/clock.h
@@ -0,0 +1,79 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _ASM_CLOCK_H
+#define	_ASM_CLOCK_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+#include <sys/time.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#if !defined(__lint) && defined(__GNUC__)
+
+#include <sys/machlock.h>
+
+extern __inline__ void unlock_hres_lock(void)
+{
+	__asm__ __volatile__(
+	    "lock; incl %0"
+	    : /* no output */
+	    : "m" (hres_lock)
+	    : "cc");
+}
+
+extern __inline__ hrtime_t tsc_read(void)
+{
+#if defined(__amd64)
+	uint32_t lobits, hibits;
+
+	__asm__ __volatile__(
+	    "rdtsc"
+	    : "=a" (lobits), "=d" (hibits));
+	return (lobits | ((hrtime_t)hibits << 32));
+#elif defined(__i386)
+	hrtime_t __value;
+
+	__asm__ __volatile__(
+	    "rdtsc"
+	    : "=A" (__value));
+	return (__value);
+#else
+#error	"port me"
+#endif
+}
+
+#endif	/* !__lint && __GNUC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _ASM_CLOCK_H */