/* $NetBSD: autoconf.c,v 1.19 2008/06/22 16:34:15 tsutsui Exp $ */ /* * Copyright (c) 1997, 1999 * Matthias Drochner. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.19 2008/06/22 16:34:15 tsutsui Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/buf.h> #include <sys/conf.h> #include <sys/device.h> #include <sys/disklabel.h> #include <sys/malloc.h> #include <sys/mount.h> #include <sys/queue.h> #include <sys/reboot.h> #include <sys/tty.h> #include <sys/kernel.h> #include <uvm/uvm_extern.h> #include <machine/autoconf.h> #include <machine/vmparam.h> #include <machine/cpu.h> #include <machine/pmap.h> #include <machine/pte.h> #include <m68k/cacheops.h> #include <cesfic/cesfic/isr.h> u_int bootdev; struct evcnt evcnt_fpsp_unimp, evcnt_fpsp_unsupp; int mainbusmatch __P((struct device *, struct cfdata *, void *)); void mainbusattach __P((struct device *, struct device *, void *)); int mainbussearch __P((struct device *, struct cfdata *, const int *, void *)); CFATTACH_DECL(mainbus, sizeof(struct device), mainbusmatch, mainbusattach, NULL, NULL); int mainbusmatch(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { static int mainbus_matched = 0; /* Allow only one instance. */ if (mainbus_matched) return (0); mainbus_matched = 1; return (1); } void mainbusattach(parent, self, aux) struct device *parent, *self; void *aux; { printf("\n"); #ifdef FPSP /* XXX this shouldn't be here but in a "cpu" node */ evcnt_attach(self, "fpuni", &evcnt_fpsp_unimp); evcnt_attach(self, "fpund", &evcnt_fpsp_unsupp); #endif /* Search for and attach children. */ config_search_ia(mainbussearch, self, "mainbus", NULL); } int mainbussearch(parent, cf, ldesc, aux) struct device *parent; struct cfdata *cf; const int *ldesc; void *aux; { if (config_match(parent, cf, NULL) > 0) config_attach(parent, cf, NULL, NULL); return (0); } int mainbus_map(physaddr, size, cacheable, virtaddr) u_long physaddr; int size; int cacheable; void ** virtaddr; { u_long pa, endpa; vm_offset_t va; pa = m68k_trunc_page(physaddr); endpa = m68k_round_page(physaddr + size); #ifdef DIAGNOSTIC if (endpa <= pa) panic("bus_mem_add_mapping: overflow"); #endif va = uvm_km_alloc(kernel_map, endpa - pa, 0, UVM_KMF_VAONLY); if (va == 0) return (ENOMEM); *virtaddr = (void*)(va + (physaddr & PGOFSET)); for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) { pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE); if (!cacheable) { pt_entry_t *pte = kvtopte(va); *pte |= PG_CI; *pte &= ~PG_CCB; } } TBIAS(); return (0); } void cpu_configure() { isrinit(); (void)splhigh(); if (config_rootfound("mainbus", NULL) == NULL) panic("no mainbus found"); (void)spl0(); cold = 0; } void cpu_rootconf() { setroot(0, 0); }