xref: /titanic_50/usr/src/uts/sun4u/os/mach_mp_states.c (revision b3700b074e637f8c6991b70754c88a2cfffb246b)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1992-2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/cpu_module.h>
30 
31 /*
32  * set_idle_cpu is called from idle() when a CPU becomes idle.
33  */
34 /*ARGSUSED*/
35 void
36 set_idle_cpu(int cpun)
37 {
38 	cpu_idle_ecache_scrub(CPU);
39 }
40 
41 /*
42  * unset_idle_cpu is called from idle() when a CPU is no longer idle.
43  */
44 /*ARGSUSED*/
45 void
46 unset_idle_cpu(int cpun)
47 {
48 	cpu_busy_ecache_scrub(CPU);
49 }
50