smt_pause.s revision 2
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 (c) 2012, Oracle and/or its affiliates. All rights reserved.
*/
.file "smt_pause.s"
/*
* void smt_pause(void)
*
* Do nothing efficiently.
*
*/
#include <sys/asm_linkage.h>
/*
* Pause the current strand with the sleep instruction.
* The compiler/asm currently does not support this sleep
* instruction mnemonic, use byte code for now.
*/
ENTRY(smt_pause)
.word 0x81b01060
retl
nop
SET_SIZE(smt_pause)