xref: /illumos-gate/usr/src/psm/promif/ieee1275/sun4v/prom_set_mmfsa_traptable.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 2005 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/promif.h>
30 #include <sys/promimpl.h>
31 
32 /*
33  * This interface allows the client to safely take over the %tba by
34  * the prom's service. The prom will take care of the quiescence of
35  * interrupts and handle any pending soft interrupts.
36  * This call also sets the MMU fault status area for the cpu.
37  */
38 void
prom_set_mmfsa_traptable(void * tba_addr,uint64_t mmfsa_ra)39 prom_set_mmfsa_traptable(void *tba_addr, uint64_t mmfsa_ra)
40 {
41 	cell_t ci[5];
42 
43 	ci[0] = p1275_ptr2cell("SUNW,set-trap-table");	/* Service name */
44 	ci[1] = (cell_t)2;			/* #argument cells */
45 	ci[2] = (cell_t)0;			/* #result cells */
46 	ci[3] = p1275_ptr2cell(tba_addr);	/* Arg1: tba address */
47 	ci[4] = p1275_ptr2cell(mmfsa_ra);	/* Arg2: mmfsa RA */
48 
49 	promif_preprom();
50 	(void) p1275_cif_handler(&ci);
51 	promif_postprom();
52 }
53