Add md (memory disk) hooks for pmax. ecoff kernel with 2MB ramdisk
tftp-boots on new PROMs. (3MB is too large).
This commit is contained in:
jonathan
parent
4d216414cf
commit
fe83804dea
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@ -1,4 +1,4 @@
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# $NetBSD: files.pmax,v 1.56 1998/09/26 21:02:56 drochner Exp $
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# $NetBSD: files.pmax,v 1.57 1998/11/17 22:41:05 jonathan Exp $
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# DECstation-specific configuration info
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# maxpartitions must be first item in files.${ARCH}.
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@ -117,6 +117,10 @@ include "dev/scsipi/files.scsipi"
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major { tz = 10 }
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major { rz = 21 }
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# Memory Disk
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file arch/pmax/pmax/md_root.c memory_disk_hooks
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major { md = 17 }
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#
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# Old 4.4bsd pmax-specific scsi driver (deprecated).
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#
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@ -1,4 +1,4 @@
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/* $NetBSD: autoconf.c,v 1.31 1998/03/26 03:12:05 thorpej Exp $ */
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/* $NetBSD: autoconf.c,v 1.32 1998/11/17 22:41:06 jonathan Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -43,7 +43,7 @@
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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: autoconf.c,v 1.31 1998/03/26 03:12:05 thorpej Exp $");
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__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.32 1998/11/17 22:41:06 jonathan Exp $");
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/*
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* Setup the system to run on the current machine.
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@ -92,9 +92,7 @@ void findroot __P((struct device **, int *));
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struct devnametobdevmaj pmax_nam2blk[] = {
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{ "rz", 21 },
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#ifdef notyet
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{ "md", XXX },
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#endif
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{ "md", 17 },
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{ NULL, 0 },
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};
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@ -1,4 +1,4 @@
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/* $NetBSD: conf.c,v 1.30 1998/11/13 04:47:08 oster Exp $ */
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/* $NetBSD: conf.c,v 1.31 1998/11/17 22:41:05 jonathan Exp $ */
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/*
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* Copyright (c) 1992, 1993
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@ -64,6 +64,8 @@ bdev_decl(ccd);
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bdev_decl(raid);
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#include "vnd.h"
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bdev_decl(vnd);
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#include "md.h"
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bdev_decl(md);
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struct bdevsw bdevsw[] =
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{
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@ -84,7 +86,7 @@ struct bdevsw bdevsw[] =
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bdev_notdef(), /* 14: rl */
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bdev_notdef(), /* 15: tmscp */
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bdev_notdef(), /* 16: cs */
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bdev_notdef(), /* 17: md */
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bdev_disk_init(NMD,md), /* 17: memory disk driver */
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bdev_tape_init(NST,st), /* 18: st */
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bdev_disk_init(NSD,sd), /* 19: sd */
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bdev_tape_init(NTZ, tz), /* 20: tz */
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@ -136,6 +138,7 @@ cdev_decl(log);
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cdev_decl(fd);
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cdev_decl(sd);
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cdev_decl(st);
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cdev_decl(md);
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#include "ss.h"
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cdev_decl(ss);
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#include "uk.h"
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@ -295,6 +298,7 @@ struct cdevsw cdevsw[] =
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cdev_lkm_init(NLKM,lkm), /* 94: loadable module driver */
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cdev_scsibus_init(NSCSIBUS,scsibus), /* 95: SCSI bus */
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cdev_disk_init(NRAID,raid), /* 96: RAIDframe disk driver */
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cdev_disk_init(NMD,md), /* 97: memory disk driver */
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};
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int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
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@ -430,6 +434,7 @@ static int chrtoblktbl[] = {
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/* 94 */ NODEV,
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/* 95 */ NODEV,
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/* 96 */ 32,
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/* 97 */ 17,
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};
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/*
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@ -0,0 +1,87 @@
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/* $NetBSD: md_root.c,v 1.1 1998/11/17 22:41:06 jonathan Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1995 Gordon W. Ross
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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. The name of the author 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 THE AUTHOR ``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 THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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: md_root.c,v 1.1 1998/11/17 22:41:06 jonathan Exp $");
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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 <dev/md.h>
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extern int boothowto;
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#ifndef MINIROOTSIZE
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#define MINIROOTSIZE 512
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#endif
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#define ROOTBYTES (MINIROOTSIZE << DEV_BSHIFT)
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/*
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* This array will be patched to contain a file-system image.
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*/
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u_int32_t md_root_size = ROOTBYTES;
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char md_root_image[ROOTBYTES] = "|This is the root ramdisk!\n";
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/*
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* This is called during autoconfig.
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*/
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void
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md_attach_hook(unit, md)
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int unit;
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struct md_conf *md;
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{
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if (unit == 0) {
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/* Setup root ramdisk */
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md->md_addr = (caddr_t)md_root_image;
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md->md_size = (size_t)md_root_size;
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md->md_type = MD_KMEM_FIXED;
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printf("md%d: internal %dK image area\n", unit,
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ROOTBYTES / 1024);
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}
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}
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/*
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* This is called during open (i.e. mountroot)
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*/
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void
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md_open_hook(unit, md)
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int unit;
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struct md_conf *md;
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{
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if (unit == 0) {
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/* The root ramdisk only works single-user. */
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boothowto |= RB_SINGLE;
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}
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}
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