4b293a84e1
- Reduce available SPL levels for hardware devices to none, vm, sched, high. - Acquire kernel_lock only for interrupts at IPL_VM. - Implement threaded soft interrupts.
118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/* $NetBSD: autoconf.c,v 1.10 2007/12/03 15:34:01 ad Exp $ */
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/*
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* Copyright (c) 1994-1998 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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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 Mark Brinicombe for
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* the NetBSD project.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* autoconf.c
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*
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* Autoconfiguration functions
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*
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* Created : 08/10/94
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.10 2007/12/03 15:34:01 ad Exp $");
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#include "opt_md.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/reboot.h>
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#include <sys/disklabel.h>
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#include <sys/device.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <machine/bootconfig.h>
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#include <machine/intr.h>
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#include "isa.h"
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extern int footbridge_imask[NIPL];
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void isa_intr_init (void);
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/*
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* Set up the root device from the boot args
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*/
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void
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cpu_rootconf(void)
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{
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printf("boot device: %s\n",
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booted_device != NULL ? booted_device->dv_xname : "<unknown>");
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setroot(booted_device, booted_partition);
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}
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/*
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* void cpu_configure()
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*
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* Configure all the root devices
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* The root devices are expected to configure their own children
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*/
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void
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cpu_configure(void)
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{
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/*
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* Since various PCI interrupts could be routed via the ICU
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* (for PCI devices in the bridge) we need to set up the ICU
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* now so that these interrupts can be established correctly
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* i.e. This is a hack.
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*/
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isa_intr_init();
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config_rootfound("mainbus", NULL);
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#if defined(DEBUG)
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/* Debugging information */
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printf("ipl_bio=%08x ipl_net=%08x ipl_tty=%08x ipl_vm=%08x\n",
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footbridge_imask[IPL_BIO], footbridge_imask[IPL_NET],
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footbridge_imask[IPL_TTY], footbridge_imask[IPL_VM]);
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printf("ipl_audio=%08x ipl_imp=%08x ipl_high=%08x ipl_serial=%08x\n",
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footbridge_imask[IPL_AUDIO], footbridge_imask[IPL_CLOCK],
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footbridge_imask[IPL_HIGH], footbridge_imask[IPL_SERIAL]);
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#endif /* defined(DEBUG) */
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/* Time to start taking interrupts so lets open the flood gates .... */
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(void)spl0();
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}
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void
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device_register(struct device *dev, void *aux)
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{
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}
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/* End of autoconf.c */
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