sparc/common/sun4dep.c

	sun4dep.c revision db9ce1c953f094d292df951aada6b8a85e1ff103
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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
 * or http://www.opensolaris.org/os/licensing.
 * 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 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/fcntl.h>
#include <sys/promif.h>
#include <sys/prom_plat.h>
#include <sys/salib.h>

int pagesize = PAGESIZE;

void
fiximp(void)
{
    extern int use_align;

    use_align = 1;
}

void
setup_aux(void)
{
    pnode_t node;
    /* big enough for OBP_NAME and for a reasonably sized OBP_COMPATIBLE. */
    static char cpubuf[5 * OBP_MAXDRVNAME];
    char dname[OBP_MAXDRVNAME];
    extern uint_t icache_flush;
    extern char *cpulist;

    icache_flush = 1;
    node = prom_findnode_bydevtype(prom_rootnode(), OBP_CPU);
    if (node != OBP_NONODE && node != OBP_BADNODE) {
        int nlen, clen, i;

        if ((nlen = prom_getproplen(node, OBP_NAME)) <= 0 ||
            nlen > sizeof (cpubuf) ||
            prom_getprop(node, OBP_NAME, cpubuf) <= 0)
            prom_panic("no name in cpu node");

        /* nlen includes the terminating null character */

        /*
         * For the CMT case, need check the parent "core"
         * node for the compatible property.
         */
        if ((clen = prom_getproplen(node, OBP_COMPATIBLE)) > 0 ||
            ((node = prom_parentnode(node)) != OBP_NONODE &&
            node != OBP_BADNODE &&
            (clen = prom_getproplen(node, OBP_COMPATIBLE)) > 0 &&
            prom_getprop(node, OBP_DEVICETYPE, dname) > 0 &&
            strcmp(dname, "core") == 0)) {
            if ((clen + nlen) > sizeof (cpubuf))
                prom_panic("cpu node \"compatible\" too long");
            /* read in compatible, leaving space for ':' */
            if (prom_getprop(node, OBP_COMPATIBLE,
                &cpubuf[nlen]) != clen)
                prom_panic("cpu node \"compatible\" error");
            clen += nlen;   /* total length */
            /* convert all null characters to ':' */
            clen--; /* except the final one... */
            for (i = 0; i < clen; i++)
                if (cpubuf[i] == '\0')
                    cpubuf[i] = ':';
        }
        cpulist = cpubuf;
    } else
        prom_panic("no cpu node");
}

/*
 * Allocate a region of virtual address space, unmapped.
 */
caddr_t
resalloc_virt(caddr_t virt, size_t size)
{
    if (prom_claim_virt(size, virt) == (caddr_t)-1)
        return ((caddr_t)0);

    return (virt);
}