xref: /onnv-gate/usr/src/uts/intel/ia32/promif/prom_exit.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/promif.h>
30*0Sstevel@tonic-gate #include <sys/consdev.h>
31*0Sstevel@tonic-gate #include <sys/promimpl.h>
32*0Sstevel@tonic-gate #include <sys/archsystm.h>
33*0Sstevel@tonic-gate #include <sys/reboot.h>
34*0Sstevel@tonic-gate #include <sys/kdi.h>
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate  * The Intel cpu does not have an underlying monitor.
38*0Sstevel@tonic-gate  * So, we do the best we can.....
39*0Sstevel@tonic-gate  */
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate extern void prom_poll_enter(void);
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate extern cons_polledio_t *cons_polledio;
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate void
46*0Sstevel@tonic-gate prom_exit_to_mon(void)
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate #if !defined(_KMDB)
50*0Sstevel@tonic-gate 	prom_poll_enter();
51*0Sstevel@tonic-gate #endif
52*0Sstevel@tonic-gate #ifdef I386BOOT
53*0Sstevel@tonic-gate 	prom_printf("[spinning forever]\n");
54*0Sstevel@tonic-gate 	for (;;)
55*0Sstevel@tonic-gate 		continue;
56*0Sstevel@tonic-gate #else
57*0Sstevel@tonic-gate #if !defined(_KMDB)
58*0Sstevel@tonic-gate 	if (boothowto & RB_DEBUG)
59*0Sstevel@tonic-gate 		kdi_dvec_enter();
60*0Sstevel@tonic-gate #endif	/* !_KMDB */
61*0Sstevel@tonic-gate 	prom_reboot_prompt();
62*0Sstevel@tonic-gate 	prom_reboot(NULL);
63*0Sstevel@tonic-gate #endif	/* !I386BOOT */
64*0Sstevel@tonic-gate }
65*0Sstevel@tonic-gate 
66*0Sstevel@tonic-gate #if !defined(_KMDB)
67*0Sstevel@tonic-gate void
68*0Sstevel@tonic-gate prom_poll_enter(void)
69*0Sstevel@tonic-gate {
70*0Sstevel@tonic-gate 	if (cons_polledio != NULL) {
71*0Sstevel@tonic-gate 		if (cons_polledio->cons_polledio_enter != NULL) {
72*0Sstevel@tonic-gate 			cons_polledio->cons_polledio_enter(
73*0Sstevel@tonic-gate 			    cons_polledio->cons_polledio_argument);
74*0Sstevel@tonic-gate 		}
75*0Sstevel@tonic-gate 	}
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate #endif
78