Add IBM40x specific machdep functions.
This commit is contained in:
shige
parent
87f629a7b8
commit
2977d5a89a
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/* $NetBSD: ibm40x_machdep.c,v 1.1 2003/09/23 15:14:02 shige Exp $ */
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/*
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* Copyright 2001, 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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* Copyright (C) 1995, 1996 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ibm40x_machdep.c,v 1.1 2003/09/23 15:14:02 shige Exp $");
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#include "opt_compat_netbsd.h"
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#include "opt_ddb.h"
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#include "opt_kgdb.h"
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#include "opt_ipkdb.h"
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/exec.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/mount.h>
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#include <sys/msgbuf.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <sys/syslog.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/user.h>
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#include <sys/boot_flag.h>
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#include <sys/properties.h>
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#include <sys/ksyms.h>
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#include <uvm/uvm_extern.h>
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#include <net/netisr.h>
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#if defined(DDB)
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#include <machine/db_machdep.h>
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#include <ddb/db_extern.h>
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#endif
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#if defined(KGDB)
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#include <sys/kgdb.h>
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#endif
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#if defined(IPKDB)
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#include <ipkdb/ipkdb.h>
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#endif
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#include <machine/bus.h>
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#include <machine/trap.h>
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#include <machine/powerpc.h>
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#include <powerpc/spr.h>
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#include <powerpc/ibm4xx/dcr405gp.h>
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/*
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* Global variables used here and there
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*/
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struct vm_map *exec_map = NULL;
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struct vm_map *mb_map = NULL;
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struct vm_map *phys_map = NULL;
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char machine[] = MACHINE; /* from <machine/param.h> */
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char machine_arch[] = MACHINE_ARCH; /* from <machine/param.h> */
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#define MEMREGIONS 8
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struct mem_region physmemr[MEMREGIONS]; /* Hard code memory */
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struct mem_region availmemr[MEMREGIONS];/* Who's supposed to set these up? */
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struct board_cfg_data board_data;
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struct propdb *board_info = NULL;
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extern struct user *proc0paddr;
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paddr_t msgbuf_paddr;
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vaddr_t msgbuf_vaddr;
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void
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ibm4xx_init_board_data(void *info_block, u_int startkernel)
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{
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/* Initialize cache info for memcpy, etc. */
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cpu_probe_cache();
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/* Save info block */
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memcpy(&board_data, info_block, sizeof(board_data));
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memset(physmemr, 0, sizeof physmemr);
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memset(availmemr, 0, sizeof availmemr);
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physmemr[0].start = 0;
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physmemr[0].size = board_data.mem_size & ~PGOFSET;
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/* Lower memory reserved by eval board BIOS */
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availmemr[0].start = startkernel;
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availmemr[0].size = board_data.mem_size - availmemr[0].start;
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}
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void
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ibm4xx_init(void (*handler)(void))
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{
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extern int defaulttrap, defaultsize;
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extern int sctrap, scsize;
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extern int alitrap, alisize;
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extern int dsitrap, dsisize;
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extern int isitrap, isisize;
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extern int mchktrap, mchksize;
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extern int tlbimiss4xx, tlbim4size;
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extern int tlbdmiss4xx, tlbdm4size;
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extern int pitfitwdog, pitfitwdogsize;
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extern int debugtrap, debugsize;
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extern int errata51handler, errata51size;
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#ifdef DDB
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extern int ddblow, ddbsize;
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#endif
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#ifdef IPKDB
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extern int ipkdblow, ipkdbsize;
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#endif
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uintptr_t exc;
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struct cpu_info * const ci = curcpu();
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/* Initialize cache info for memcpy, etc. */
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cpu_probe_cache();
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/*
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* Initialize lwp0 and current pcb and pmap pointers.
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*/
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KASSERT(ci != NULL);
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KASSERT(curcpu() == ci);
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lwp0.l_cpu = ci;
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lwp0.l_addr = proc0paddr;
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memset(lwp0.l_addr, 0, sizeof *lwp0.l_addr);
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KASSERT(lwp0.l_cpu != NULL);
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curpcb = &proc0paddr->u_pcb;
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memset(curpcb, 0, sizeof(*curpcb));
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curpcb->pcb_pm = pmap_kernel();
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/*
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* Set up trap vectors
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*/
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for (exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100)
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switch (exc) {
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default:
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memcpy((void *)exc, &defaulttrap, (size_t)&defaultsize);
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break;
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case EXC_EXI:
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/*
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* This one is (potentially) installed during autoconf
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*/
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break;
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case EXC_SC:
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memcpy((void *)EXC_SC, &sctrap, (size_t)&scsize);
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break;
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case EXC_ALI:
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memcpy((void *)EXC_ALI, &alitrap, (size_t)&alisize);
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break;
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case EXC_DSI:
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memcpy((void *)EXC_DSI, &dsitrap, (size_t)&dsisize);
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break;
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case EXC_ISI:
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memcpy((void *)EXC_ISI, &isitrap, (size_t)&isisize);
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break;
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case EXC_MCHK:
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memcpy((void *)EXC_MCHK, &mchktrap, (size_t)&mchksize);
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break;
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case EXC_ITMISS:
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memcpy((void *)EXC_ITMISS, &tlbimiss4xx,
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(size_t)&tlbim4size);
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break;
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case EXC_DTMISS:
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memcpy((void *)EXC_DTMISS, &tlbdmiss4xx,
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(size_t)&tlbdm4size);
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break;
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/*
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* EXC_PIT, EXC_FIT, EXC_WDOG handlers
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* are spaced by 0x10 bytes only..
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*/
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case EXC_PIT:
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memcpy((void *)EXC_PIT, &pitfitwdog,
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(size_t)&pitfitwdogsize);
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break;
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case EXC_DEBUG:
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memcpy((void *)EXC_DEBUG, &debugtrap,
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(size_t)&debugsize);
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break;
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case EXC_DTMISS|EXC_ALI:
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/* PPC405GP Rev D errata item 51 */
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memcpy((void *)(EXC_DTMISS|EXC_ALI), &errata51handler,
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(size_t)&errata51size);
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break;
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#if defined(DDB) || defined(IPKDB)
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case EXC_PGM:
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#if defined(DDB)
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memcpy((void *)exc, &ddblow, (size_t)&ddbsize);
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#elif defined(IPKDB)
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memcpy((void *)exc, &ipkdblow, (size_t)&ipkdbsize);
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#endif
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#endif /* DDB | IPKDB */
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break;
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}
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__syncicache((void *)EXC_RST, EXC_LAST - EXC_RST + 0x100);
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mtspr(SPR_EVPR, 0); /* Set Exception vector base */
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consinit();
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/* Handle trap instruction as PGM exception */
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{
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int dbcr0;
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asm volatile("mfspr %0,%1":"=r"(dbcr0):"K"(SPR_DBCR0));
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asm volatile("mtspr %0,%1"::"K"(SPR_DBCR0),"r"(dbcr0 & ~DBCR0_TDE));
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}
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/*
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* external interrupt handler install
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*/
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if (handler)
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ibm4xx_install_extint(handler);
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/*
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* Now enable translation (and machine checks/recoverable interrupts).
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*/
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asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0; isync"
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: : "r"(0), "K"(PSL_IR|PSL_DR));
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/* XXXX PSL_ME - With ME set kernel gets stuck... */
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KASSERT(curcpu() == ci);
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}
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void
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ibm4xx_install_extint(void (*handler)(void))
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{
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extern int extint, extsize;
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extern u_long extint_call;
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u_long offset = (u_long)handler - (u_long)&extint_call;
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int msr;
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#ifdef DIAGNOSTIC
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if (offset > 0x1ffffff)
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panic("install_extint: too far away");
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#endif
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asm volatile ("mfmsr %0; wrteei 0" : "=r"(msr));
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extint_call = (extint_call & 0xfc000003) | offset;
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memcpy((void *)EXC_EXI, &extint, (size_t)&extsize);
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__syncicache((void *)&extint_call, sizeof extint_call);
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__syncicache((void *)EXC_EXI, (int)&extsize);
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asm volatile ("mtmsr %0" :: "r"(msr));
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}
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/*
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* Machine dependent startup code.
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*/
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char msgbuf[MSGBUFSIZE];
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void
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ibm4xx_startup(const char *model)
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{
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uintptr_t sz;
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u_int i;
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u_long base, residual;
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caddr_t v;
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vaddr_t minaddr, maxaddr;
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char pbuf[9];
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KASSERT(curcpu() != NULL);
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KASSERT(lwp0.l_cpu != NULL);
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KASSERT(curcpu()->ci_intstk != 0);
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KASSERT(curcpu()->ci_intrdepth == -1);
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/*
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* Initialize error message buffer (at end of core).
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*/
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#if 0 /* For some reason this fails... --Artem
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* Besides, do we really have to put it at the end of core?
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* Let's use static buffer for now
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*/
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if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE))))
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panic("startup: no room for message buffer");
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for (i = 0; i < btoc(MSGBUFSIZE); i++)
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pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE,
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msgbuf_paddr + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE);
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initmsgbuf((caddr_t)msgbuf_vaddr, round_page(MSGBUFSIZE));
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#else
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initmsgbuf((caddr_t)msgbuf, round_page(MSGBUFSIZE));
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#endif
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printf("%s", version);
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if (model != NULL)
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printf("Model: %s\n", model);
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format_bytes(pbuf, sizeof(pbuf), ctob(physmem));
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printf("total memory = %s\n", pbuf);
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/*
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* Find out how much space we need, allocate it,
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* and then give everything true virtual addresses.
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*/
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sz = (u_int)allocsys(NULL, NULL);
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if ((v = (caddr_t)uvm_km_zalloc(kernel_map, round_page(sz))) == 0)
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panic("startup: no room for tables");
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if (allocsys(v, NULL) - v != sz)
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panic("startup: table size inconsistency");
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/*
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* Now allocate buffers proper. They are different than the above
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* in that they usually occupy more virtual memory than physical.
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*/
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sz = MAXBSIZE * nbuf;
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minaddr = 0;
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if (uvm_map(kernel_map, (vaddr_t *)&minaddr, round_page(sz),
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NULL, UVM_UNKNOWN_OFFSET, 0,
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UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
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UVM_ADV_NORMAL, 0)) != 0)
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panic("startup: cannot allocate VM for buffers");
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buffers = (char *)minaddr;
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base = bufpages / nbuf;
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residual = bufpages % nbuf;
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if (base >= MAXBSIZE) {
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/* Don't want to alloc more physical mem than ever needed */
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base = MAXBSIZE;
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residual = 0;
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}
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for (i = 0; i < nbuf; i++) {
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vsize_t curbufsize;
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vaddr_t curbuf;
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struct vm_page *pg;
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curbuf = (vaddr_t)buffers + i * MAXBSIZE;
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curbufsize = PAGE_SIZE * (i < residual ? base + 1 : base);
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while (curbufsize) {
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pg = uvm_pagealloc(NULL, 0, NULL, 0);
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if (pg == NULL)
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panic("cpu_startup: not enough memory for "
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"buffer cache");
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pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg),
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VM_PROT_READ | VM_PROT_WRITE);
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curbuf += PAGE_SIZE;
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curbufsize -= PAGE_SIZE;
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}
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}
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/*
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* Allocate a submap for exec arguments. This map effectively
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* limits the number of processes exec'ing at any time.
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*/
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exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
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16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
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/*
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* Allocate a submap for physio
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*/
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phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
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VM_PHYS_SIZE, 0, FALSE, NULL);
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/*
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* No need to allocate an mbuf cluster submap. Mbuf clusters
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* are allocated via the pool allocator, and we use direct-mapped
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* pool pages.
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*/
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format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
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printf("avail memory = %s\n", pbuf);
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format_bytes(pbuf, sizeof(pbuf), bufpages * PAGE_SIZE);
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printf("using %u buffers containing %s of memory\n", nbuf, pbuf);
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/*
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* Set up the buffers.
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*/
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bufinit();
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}
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void
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ibm4xx_setup_propdb(void)
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{
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/*
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* Set up the board properties database.
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*/
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if (!(board_info = propdb_create("board info")))
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panic("Cannot create board info database");
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if (board_info_set("mem-size", &board_data.mem_size,
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sizeof(&board_data.mem_size), PROP_CONST, 0))
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panic("setting mem-size");
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if (board_info_set("sip0-mac-addr", &board_data.mac_address_pci,
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sizeof(&board_data.mac_address_pci), PROP_CONST, 0))
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panic("setting sip0-mac-addr");
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if (board_info_set("processor-frequency", &board_data.processor_speed,
|
||||
sizeof(&board_data.processor_speed), PROP_CONST, 0))
|
||||
panic("setting processor-frequency");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Crash dump handling.
|
||||
*/
|
||||
void
|
||||
ibm4xx_dumpsys(void)
|
||||
{
|
||||
printf("dumpsys: TBD\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* Soft networking interrupts.
|
||||
*/
|
||||
void
|
||||
softnet(void)
|
||||
{
|
||||
int isr;
|
||||
|
||||
isr = netisr;
|
||||
netisr = 0;
|
||||
|
||||
#define DONETISR(bit, fn) do { \
|
||||
if (isr & (1 << bit)) \
|
||||
fn(); \
|
||||
} while (0)
|
||||
|
||||
#include <net/netisr_dispatch.h>
|
||||
|
||||
#undef DONETISR
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Soft tty interrupts.
|
||||
*/
|
||||
#include "com.h"
|
||||
void
|
||||
softserial(void)
|
||||
{
|
||||
#if NCOM > 0
|
||||
void comsoft(void); /* XXX from dev/ic/com.c */
|
||||
|
||||
comsoft();
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
mem_regions(struct mem_region **mem, struct mem_region **avail)
|
||||
{
|
||||
*mem = physmemr;
|
||||
*avail = availmemr;
|
||||
}
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: cpu.h,v 1.5 2003/06/13 04:05:27 msaitoh Exp $ */
|
||||
/* $NetBSD: cpu.h,v 1.6 2003/09/23 15:14:03 shige Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright 2002 Wasabi Systems, Inc.
|
||||
|
|
@ -60,6 +60,12 @@
|
|||
#if defined(_KERNEL)
|
||||
extern char bootpath[];
|
||||
|
||||
void ibm4xx_init_board_data(void *, u_int);
|
||||
void ibm4xx_init(void (*)(void));
|
||||
void ibm4xx_startup(const char *);
|
||||
void ibm4xx_setup_propdb(void);
|
||||
void ibm4xx_dumpsys(void);
|
||||
void ibm4xx_install_extint(void (*)(void));
|
||||
void calc_delayconst(void);
|
||||
void ppc4xx_reset(void) __attribute__((__noreturn__));
|
||||
#endif /* _KERNEL */
|
||||
|
|
|
|||
Loading…
Reference in New Issue