machdep.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/prom_plat.h>
int vac = 0;
/*
* Check if the CPU is an UltraSPARC-1 or not.
*/
int
cpu_is_ultrasparc_1(void)
{
return (0);
}
/*
* Retain a page or reclaim a previously retained page of physical
* memory for use by the prom upgrade. If successful, leave
* an indication that a page was retained by creating a boolean
* property in the root node.
*
* XXX: SUNW,retain doesn't work as expected on server systems,
* so we don't try to retain any memory on those systems.
*
* XXX: do a '0 to my-self' as a workaround for 4160914
*/
int dont_retain_memory;
void
retain_nvram_page(void)
{
unsigned long long phys = 0;
static char create_prop[] =
"0 to my-self dev / 0 0 \" boot-retained-page\" property";
extern int verbosemode;
if (dont_retain_memory)
return;
printf("prom_retain failed\n");
return;
}
if (verbosemode)
prom_interpret(create_prop, 0, 0, 0, 0, 0);
}