120 lines
2.8 KiB
C
120 lines
2.8 KiB
C
/* $NetBSD: mainbus.c,v 1.27 1998/06/24 01:10:35 ross Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.27 1998/06/24 01:10:35 ross Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <machine/autoconf.h>
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#include <machine/rpb.h>
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#include <machine/conf.h>
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/* Definition of the mainbus driver. */
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static int mbmatch __P((struct device *, struct cfdata *, void *));
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static void mbattach __P((struct device *, struct device *, void *));
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static int mbprint __P((void *, const char *));
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struct cfattach mainbus_ca = {
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sizeof(struct device), mbmatch, mbattach
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};
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/* There can be only one. */
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int mainbus_found;
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static int
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mbmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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if (mainbus_found)
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return (0);
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return (1);
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}
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static void
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mbattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct mainbus_attach_args ma;
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struct pcs *pcsp;
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int i, cpuattachcnt;
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extern int ncpus;
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mainbus_found = 1;
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printf("\n");
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/*
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* Try to find and attach all of the CPUs in the machine.
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*/
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cpuattachcnt = 0;
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for (i = 0; i < hwrpb->rpb_pcs_cnt; i++) {
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pcsp = LOCATE_PCS(hwrpb, i);
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if ((pcsp->pcs_flags & PCS_PP) == 0)
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continue;
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ma.ma_name = "cpu";
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ma.ma_slot = i;
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if (config_found(self, &ma, mbprint) != NULL)
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cpuattachcnt++;
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}
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if (ncpus != cpuattachcnt)
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printf("WARNING: %d cpus in machine, %d attached\n",
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ncpus, cpuattachcnt);
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if (platform.iobus != NULL) {
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ma.ma_name = platform.iobus;
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ma.ma_slot = 0; /* meaningless */
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config_found(self, &ma, mbprint);
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}
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}
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static int
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mbprint(aux, pnp)
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void *aux;
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const char *pnp;
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{
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struct mainbus_attach_args *ma = aux;
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if (pnp)
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printf("%s at %s", ma->ma_name, pnp);
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return (UNCONF);
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}
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