/* $OpenBSD: autoconf.c,v 1.40 2007/06/15 01:19:08 deraadt Exp $ */
/*
* Copyright (c) 1995 Theo de Raadt
*
* 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.
*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: Utah $Hdr: autoconf.c 1.36 92/12/20$
*
* @(#)autoconf.c 8.2 (Berkeley) 1/12/94
*/
/*
* Setup the system to run on the current machine.
*
* cpu_configure() is called at boot time. Available
* devices are determined (from possibilities mentioned in ioconf.c),
* and the drivers are initialized.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/extent.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/dkstat.h>
#include <sys/conf.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <machine/vmparam.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/pte.h>
#include <uvm/uvm_extern.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/cons.h>
int mainbus_print(void *, const char *);
int mainbus_scan(struct device *, void *, void *);
extern void init_intrs(void);
extern void dumpconf(void);
/* boot device information */
paddr_t bootaddr;
int bootctrllun, bootdevlun, bootpart;
struct device *bootdv;
/*
* XXX some storage space must be allocated statically because of
* early console init
*/
char extiospace[EXTENT_FIXED_STORAGE_SIZE(8)];
struct extent *extio;
extern vaddr_t extiobase;
void mainbus_attach(struct device *, struct device *, void *);
int mainbus_match(struct device *, void *, void *);
struct cfattach mainbus_ca = {
sizeof(struct device), mainbus_match, mainbus_attach
};
struct cfdriver mainbus_cd = {
NULL, "mainbus", DV_DULL
};
int
mainbus_match(parent, cf, args)
struct device *parent;
void *cf;
void *args;
{
return (1);
}
int
mainbus_print(args, bus)
void *args;
const char *bus;
{
struct confargs *ca = args;
if (ca->ca_paddr != (paddr_t)-1)
printf(" addr 0x%x", (u_int32_t)ca->ca_paddr);
return (UNCONF);
}
int
mainbus_scan(parent, child, args)
struct device *parent;
void *child, *args;
{
struct cfdata *cf = child;
struct confargs oca;
bzero(&oca, sizeof oca);
oca.ca_paddr = cf->cf_loc[0];
oca.ca_vaddr = (vaddr_t)-1;
oca.ca_ipl = -1;
oca.ca_bustype = BUS_MAIN;
oca.ca_name = cf->cf_driver->cd_name;
if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
return (0);
config_attach(parent, cf, &oca, mainbus_print);
return (1);
}
void
mainbus_attach(parent, self, args)
struct device *parent, *self;
void *args;
{
printf("\n");
/* XXX
* should have a please-attach-first list for mainbus,
* to ensure that the pcc/vme2/mcc chips are attached
* first.
*/
(void)config_search(mainbus_scan, self, args);
}
/*
* Determine mass storage and memory configuration for a machine.
*/
void
cpu_configure()
{
init_intrs();
extio = extent_create("extio",
(u_long)extiobase, (u_long)extiobase + ctob(EIOMAPSIZE),
M_DEVBUF, extiospace, sizeof(extiospace), EX_NOWAIT);
if (config_rootfound("mainbus", NULL) == NULL)
panic("autoconfig failed, no root");
printf("boot device: %s\n",
(bootdv) ? bootdv->dv_xname : "<unknown>");
cold = 0;
}
void
diskconf(void)
{
setroot(bootdv, bootpart, RB_USERREQ);
dumpconf();
}
/*
* Allocate/deallocate a cache-inhibited range of kernel virtual address
* space mapping the indicated physical address range [pa - pa+size)
*/
vaddr_t
mapiodev(pa, size)
paddr_t pa;
int size;
{
int error;
paddr_t base;
vaddr_t va, iova;
if (size <= 0)
return NULL;
base = pa & PAGE_MASK;
pa = trunc_page(pa);
size = round_page(base + size);
error = extent_alloc(extio, size, EX_NOALIGN, 0, EX_NOBOUNDARY,
EX_NOWAIT | EX_MALLOCOK, &iova);
if (error != 0)
return NULL;
va = iova;
while (size != 0) {
pmap_kenter_cache(va, pa, PG_RW | PG_CI);
size -= PAGE_SIZE;
va += PAGE_SIZE;
pa += PAGE_SIZE;
}
pmap_update(pmap_kernel());
return (iova + base);
}
void
unmapiodev(kva, size)
vaddr_t kva;
int size;
{
int error;
vaddr_t va;
#ifdef DEBUG
if (kva < extiobase || kva + size >= extiobase + ctob(EIOMAPSIZE))
panic("unmapiodev: bad address");
#endif
va = trunc_page(kva);
size = round_page(kva + size) - va;
pmap_kremove(va, size);
pmap_update(pmap_kernel());
error = extent_free(extio, va, size, EX_NOWAIT);
#ifdef DIAGNOSTIC
if (error != 0)
printf("unmapiodev: extent_free failed\n");
#endif
}
void
device_register(struct device *dev, void *aux)
{
if (bootpart == -1) /* ignore flag from controller driver? */
return;
/*
* scsi: sd,cd
*/
if (strncmp("sd", dev->dv_xname, 2) == 0 ||
strncmp("cd", dev->dv_xname, 2) == 0) {
struct scsi_attach_args *sa = aux;
int target, lun;
#ifdef MVME147
/*
* The 147 can only boot from the built-in scsi controller,
* and stores the scsi id as the controller number.
*/
if (cputyp == CPU_147) {
target = bootctrllun;
lun = 0;
} else
#endif
{
target = bootdevlun >> 4;
lun = bootdevlun & 0x0f;
}
if (sa->sa_sc_link->target == target &&
sa->sa_sc_link->lun == lun) {
bootdv = dev;
return;
}
}
/*
* ethernet: ie,le
*/
else if (strncmp("ie", dev->dv_xname, 2) == 0 ||
strncmp("le", dev->dv_xname, 2) == 0) {
struct confargs *ca = aux;
if (ca->ca_paddr == bootaddr) {
bootdv = dev;
return;
}
}
}
struct nam2blk nam2blk[] = {
{ "sd", 4 },
{ "st", 7 },
{ "rd", 9 },
{ NULL, -1 }
};