Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / tools / promif / sun4u / prom_init.c

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: prom_init.c
* 
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
* 
*  - Do no alter or remove copyright notices
* 
*  - Redistribution and use of this software in source and binary forms, with 
*    or without modification, are permitted provided that the following 
*    conditions are met: 
* 
*  - Redistribution of source code must retain the above copyright notice, 
*    this list of conditions and the following disclaimer.
* 
*  - Redistribution in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution. 
* 
*    Neither the name of Sun Microsystems, Inc. or the names of contributors 
* may be used to endorse or promote products derived from this software 
* without specific prior written permission. 
* 
*     This software is provided "AS IS," without a warranty of any kind. 
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, 
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A 
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN 
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR 
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* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, 
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF 
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* 
* You acknowledge that this software is not designed, licensed or
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* any nuclear facility. 
* 
* ========== Copyright Header End ============================================
*/
/*
* Copyright (c) 2000-2003 Sun Microsystems, Inc.
* All rights reserved.
* Use is subject to license terms.
*/

#pragma ident   "@(#)prom_init.c        1.1     00/08/07 SMI"

#include <sys/promif.h>
#include <sys/promimpl.h>

static void prom_fatal_error(const char *errormsg);

/*
* This is the string we use to print out "panic" level messages.
*/
#define PROMIF_CLNTNAMELEN      16
char    promif_clntname[PROMIF_CLNTNAMELEN];

/*
* Every standalone that wants to use this library must call
* prom_init() before any of the other routines can be called.
*/
void
prom_init(char *pgmname, void *p1275cif)
{

       /*
        * Validate and register address of the client interface handler
        */
       if (p1275_cif_init(p1275cif) == NULL)
               prom_fatal_error("promif: No interface!");

       /*
        * Initialize the "clientname" string with the string we've
        * been handed by the standalone
        */
       (void) prom_strncpy(promif_clntname, "standalone-program",
                           PROMIF_CLNTNAMELEN - 1);
       promif_clntname[PROMIF_CLNTNAMELEN - 1] = '\0';
}

/*
* Cant get to the prom interface. Try to cause a trap by
* dividing by zero, leaving the message in %i0
*/
static void
prom_fatal_error(const char *errormsg)
{
       volatile int    zero = 0;
       volatile int    i = 1;

       i = i / zero;
       /*NOTREACHED*/
}