Initial commit of OpenSPARC T2 architecture model.
[OpenSPARC-T2-SAM] / obp / tools / promif / sun4u / prom_init.c
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1/*
2* ========== Copyright Header Begin ==========================================
3*
4* Hypervisor Software File: prom_init.c
5*
6* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
7*
8* - Do no alter or remove copyright notices
9*
10* - Redistribution and use of this software in source and binary forms, with
11* or without modification, are permitted provided that the following
12* conditions are met:
13*
14* - Redistribution of source code must retain the above copyright notice,
15* this list of conditions and the following disclaimer.
16*
17* - Redistribution in binary form must reproduce the above copyright notice,
18* this list of conditions and the following disclaimer in the
19* documentation and/or other materials provided with the distribution.
20*
21* Neither the name of Sun Microsystems, Inc. or the names of contributors
22* may be used to endorse or promote products derived from this software
23* without specific prior written permission.
24*
25* This software is provided "AS IS," without a warranty of any kind.
26* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
27* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
28* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
29* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
30* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
31* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
32* OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
33* FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
34* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
35* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
36* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
37*
38* You acknowledge that this software is not designed, licensed or
39* intended for use in the design, construction, operation or maintenance of
40* any nuclear facility.
41*
42* ========== Copyright Header End ============================================
43*/
44/*
45 * Copyright (c) 2000-2003 Sun Microsystems, Inc.
46 * All rights reserved.
47 * Use is subject to license terms.
48 */
49
50#pragma ident "@(#)prom_init.c 1.1 00/08/07 SMI"
51
52#include <sys/promif.h>
53#include <sys/promimpl.h>
54
55static void prom_fatal_error(const char *errormsg);
56
57/*
58 * This is the string we use to print out "panic" level messages.
59 */
60#define PROMIF_CLNTNAMELEN 16
61char promif_clntname[PROMIF_CLNTNAMELEN];
62
63/*
64 * Every standalone that wants to use this library must call
65 * prom_init() before any of the other routines can be called.
66 */
67void
68prom_init(char *pgmname, void *p1275cif)
69{
70
71 /*
72 * Validate and register address of the client interface handler
73 */
74 if (p1275_cif_init(p1275cif) == NULL)
75 prom_fatal_error("promif: No interface!");
76
77 /*
78 * Initialize the "clientname" string with the string we've
79 * been handed by the standalone
80 */
81 (void) prom_strncpy(promif_clntname, "standalone-program",
82 PROMIF_CLNTNAMELEN - 1);
83 promif_clntname[PROMIF_CLNTNAMELEN - 1] = '\0';
84}
85
86/*
87 * Cant get to the prom interface. Try to cause a trap by
88 * dividing by zero, leaving the message in %i0
89 */
90static void
91prom_fatal_error(const char *errormsg)
92{
93 volatile int zero = 0;
94 volatile int i = 1;
95
96 i = i / zero;
97 /*NOTREACHED*/
98}