xref: /titanic_52/usr/src/psm/promif/ieee1275/sun4v/prom_sun4v_soft_state_supported.c (revision 3b890a5b92df88d9d90b2d7ac57e8c1e93e59e6a)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <sys/promif.h>
29 #include <sys/promimpl.h>
30 
31 /*
32  * This interface allows the client to specify that the client
33  * supports soft state, so OBP should not set SIS_NORMAL.
34  */
35 void
36 prom_sun4v_soft_state_supported(void)
37 {
38 	cell_t ci[3];
39 
40 	if (prom_test("SUNW,soft-state-supported") != 0)
41 		return;
42 
43 	ci[0] = p1275_ptr2cell("SUNW,soft-state-supported");	/* Service */
44 	ci[1] = (cell_t)0;			/* No Arguments */
45 	ci[2] = (cell_t)0;			/* No return values */
46 
47 	promif_preprom();
48 	(void) p1275_cif_handler(&ci);
49 	promif_postprom();
50 }
51