ramdisk support for vax.

5 files changed, 255 insertions, 4 deletions

diff --git a/sys/arch/vax/compile/.cvsignore b/sys/arch/vax/compile/.cvsignore
index 6aac3b440c7..e96f081902c 100644
--- a/sys/arch/vax/compile/.cvsignore
+++ b/sys/arch/vax/compile/.cvsignore
@@ -1,3 +1,4 @@
 GENERIC
+RAMDISK
 NANCY
 VOX
diff --git a/sys/arch/vax/conf/RAMDISK b/sys/arch/vax/conf/RAMDISK
new file mode 100644
index 00000000000..3f1b631eefa
--- /dev/null
+++ b/sys/arch/vax/conf/RAMDISK
@@ -0,0 +1,169 @@
+#	$OpenBSD: RAMDISK,v 1.1 2000/10/31 02:30:56 hugh Exp $
+
+machine 	vax			# machine type
+
+#makeoptions	COPTS="-Os"		# untested
+makeoptions	COPTS="-O2"
+
+option		RAMDISK_HOOKS
+option		MINIROOTSIZE=4352	# LESS THAN RELOC
+
+# Here are all different supported CPU types listed.
+# One of these is required.
+#option 		VAX8600
+#option 		VAX8200
+#option 		VAX780		# 11/780
+#option 		VAX750		# 11/750
+option 		VAX630		# MV II
+option 		VAX650		# MV III, 3300, 3600, 3800, 3900
+option	 	VAX670		# VAX 4000/300
+option	 	VAX410		# VS 2000, 3100/{30,}
+option 		VAX43		# VS 3100/76
+option 		VAX46		# VS 4000/60
+option		VAX48		# VS 4000 VLC
+option 		VAX49		# VS 4000/90
+
+option		UVM			# VAX uses UVM; REQUIRED
+
+maxusers	8		# estimated number of users
+option		TIMEZONE=0	# time zone to adjust RTC time by
+option		DST=0		# daylight savings time used by RTC
+
+option		SWAPPAGER	# paging; REQUIRED
+option		DEVPAGER	# mmap() of devices
+
+option		FFS		# UFS
+
+option		NFSCLIENT	# Network File System client
+option		CD9660		# ISO 9660 + Rock Ridge file system
+option		MSDOSFS		# MS-DOS file system
+option		FIFO		# FIFOs; RECOMMENDED
+option		KERNFS		# /kern
+
+option		INET		# IP + ICMP + TCP + UDP
+
+option		BOOT_CONFIG	# boot-time kernel config
+
+config		bsd	root on rd0a swap on rd0b	# and sd0b
+
+# WS console uses VT100 terminal emulation
+option 		WSEMUL_VT100
+option 		WSDISPLAY_DEFAULTSCREENS=8
+
+# Old compat stuff; needed to run 4.3BSD Reno programs.
+# Note that if COMPAT_ULTRIX is set, you lose compatibility with
+# 4.3BSD Reno programs and get Ultrix compatibility instead.
+# (They cannot coexist).
+option 		COMPAT_VAX1K	# Must be present to run pre-1.4 binaries.
+option 		COMPAT_12
+#option 	COMPAT_13
+#option 	COMPAT_14
+#option 	COMPAT_ULTRIX
+
+option		INSN_EMULATE	# CPU lacks some hardware instructions.
+
+mainbus0	at root
+
+# All buses; from the beginning attached to mainbus.
+#abus0		at mainbus0		# Master bus on VAX 8600
+#sbi0		at mainbus0		# SBI, master bus on 11/780.
+#cmi0		at mainbus0		# 11/750 internal bus.
+#bi0		at mainbus0		# VAX 8200 
+vsbus0		at mainbus0		# All VAXstations
+ibus0		at mainbus0		# All Microvax
+#nbi0		at mainbus0		# VAX 8800
+#xmi0		at mainbus0		# VAX 6000
+
+# Vsbus, the virtual VAXstation bus, and possible devices.
+le0		at vsbus0 csr 0x200e0000 # LANCE ethernet
+ze0		at vsbus0 csr 0x20008000 # SGEC ethernet
+dz0		at vsbus0 csr 0x200a0000 # DC-367 DZ-11 lookalike ctlr
+dz0		at vsbus0 csr 0x25000000 # VS4000/90 serial line
+#hdc0		at vsbus0 csr 0x200c0000 # HDC9224 MFM/floppy ctlr
+ncr0		at vsbus0 csr 0x200c0080 # VS2000/3100 SCSI-ctlr
+ncr1		at vsbus0 csr 0x200c0180 # VS2000/3100 SCSI-ctlr
+asc0		at vsbus0 csr 0x200c0080 # VS4000/60 (or VLC) SCSI-ctlr
+asc0		at vsbus0 csr 0x26000080 # VS4000/90 SCSI-ctlr
+#smg0		at vsbus0 csr 0x200f0000 # Small monochrome display ctlr.
+#clr0		at vsbus0 csr 0x30000000 # 4- or 8-bitplans color graphics
+
+#hd*		at hdc0 drive?		# RD5x disks
+#ry*		at hdc0 drive?		# RX floppies
+
+# Ibus, the internal bus on most Microvaxen
+uba0		at ibus0 		# Qbus adapter
+ze0		at ibus0 		# SGEC on-board ethernet
+#shac0		at ibus0 		# DSSI controller
+le0			at ibus0		# LANCE ethernet
+
+# Devices connected at VAXBI
+#cpu*		at bi? node?		# KA820/KA825 cpu
+#mem*		at bi? node?		# Memory subsystems
+#uba*		at bi? node?		# DWBUA BI-Unibus adapter
+#ni*		at bi? node?		# DEBNA/DEBNT ethernet adapter
+#kdb*		at bi? node?		# KDB50 MSCP disk ctlr
+#mscpbus*	at kdb?
+
+# CMI (VAX 11/750)
+#mem*		at cmi? tr?		# Memory subsystems
+#uba*		at cmi? tr?		# Unibus adapters
+#mba*		at cmi? tr?		# Massbus adapters
+
+# SBI (VAX 11/780, VAX 8600)
+#sbi*		at abus0		# VAX 8600 can have up to 4 SBI's.
+
+#mem*		at sbi? tr?		# Memory subsystems
+#uba*		at sbi? tr?		# Unibus adapters
+#mba*		at sbi? tr?		# Massbus adapters
+
+# Devices on Massbus adapters
+#hp*		at mba? drive?		# RM/RP disk drives
+
+# Devices on Unibus/Qbus adapters
+#uda0		at uba?	csr 0172150	# UDA50/RQDX?
+#uda1		at uba?	csr 0160334
+mtc0		at uba? csr 0174500	# Tape MSCP ctlr
+#ts0		at uba? csr 0172520	# TS11/TSV05 tape.
+#qd0		at uba? csr 0177400	# 4- or 8-bitplans color graphics
+#qv0		at uba? csr 0177400	# Monochrome graphics
+#de0		at uba? csr 0174510	# DELUA/DEUNA
+#qe0		at uba? csr 0174440	# DEQNA/DELQA
+#dhu0		at uba? csr 0160440	# DHU-11
+#dz0		at uba? csr 0160100	# DZ-11
+#dl0		at uba? csr 0176500	# DL-11
+
+# MSCP devices
+#mscpbus*	at uda?
+mscpbus*	at mtc?
+#mscpbus*	at kdb?
+
+#ra*		at mscpbus? drive?	# MSCP disk
+rx*		at mscpbus? drive?	# MSCP floppy
+mt*		at mscpbus? drive?	# MSCP tape
+
+# VS2000 builtin MFM controller (HDC9224)
+#hdc0		at vsbus0		# The strange builtin MFM controller
+
+# SCSI devices
+scsibus*	at asc?
+scsibus*	at ncr?
+
+sd*		at scsibus? target? lun?
+st*		at scsibus? target? lun?
+cd*		at scsibus? target? lun?
+ch*		at scsibus? target? lun?
+ss*		at scsibus? target? lun?
+uk*		at scsibus? target? lun?
+
+# Workstation console
+#wscons*	at smg?
+
+#wsdisplay0	at clr0
+#wsdisplay0	at qd0
+#wsdisplay0	at qv0
+#lkc0		at dz0
+
+pseudo-device	loop		1	# network loopback
+pseudo-device	bpfilter	1	# packet filter
+pseudo-device	rd		1	# ramdisk
+
diff --git a/sys/arch/vax/conf/files.vax b/sys/arch/vax/conf/files.vax
index 3190b8f7b78..dc981126ce7 100644
--- a/sys/arch/vax/conf/files.vax
+++ b/sys/arch/vax/conf/files.vax
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.vax,v 1.15 2000/10/24 02:20:21 hugh Exp $
+#	$OpenBSD: files.vax,v 1.16 2000/10/31 02:30:56 hugh Exp $
 #       $NetBSD: files.vax,v 1.60 1999/08/27 20:04:32 ragge Exp $
 #
 # new style config file for vax architecture
@@ -126,6 +126,10 @@ device	ry: disk
 attach	ry at hdc
 major	{ry = 24}
 
+# RAM Disk for install floppy
+file arch/vax/vax/rd_root.c		ramdisk_hooks
+major	{rd = 23}
+
 #
 # Machine-independent SCSI driver.
 #
diff --git a/sys/arch/vax/vax/conf.c b/sys/arch/vax/vax/conf.c
index 01f1eeddf77..313c373d969 100644
--- a/sys/arch/vax/vax/conf.c
+++ b/sys/arch/vax/vax/conf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: conf.c,v 1.21 2000/10/09 23:11:57 bjc Exp $ */
+/*	$OpenBSD: conf.c,v 1.22 2000/10/31 02:30:57 hugh Exp $ */
 /*	$NetBSD: conf.c,v 1.44 1999/10/27 16:38:54 ragge Exp $	*/
 
 /*-
@@ -148,7 +148,7 @@ struct bdevsw	bdevsw[] =
 	bdev_notdef(),			/* 16: was: KDB50/RA?? */
 	bdev_disk_init(NCCD,ccd),	/* 17: concatenated disk driver */
 	bdev_disk_init(NVND,vnd),	/* 18: vnode disk driver */
-	bdev_disk_init(NHD,hd),	/* 19: VS3100 ST506 disk */
+	bdev_disk_init(NHD,hd),		/* 19: VS3100 ST506 disk */
 	bdev_disk_init(NSD,sd),		/* 20: SCSI disk */
 	bdev_tape_init(NST,st),		/* 21: SCSI tape */
 	bdev_disk_init(NCD,cd),		/* 22: SCSI CD-ROM */
@@ -498,7 +498,7 @@ struct cdevsw	cdevsw[] =
 	cdev_disk_init(NVND,vnd),	/* 55: vnode disk driver */
 	cdev_bpftun_init(NBPFILTER,bpf),/* 56: berkeley packet filter */
 	cdev_bpftun_init(NTUN,tun),	/* 57: tunnel filter */
-	cdev_disk_init(NHD,hd),	/* 58: HDC9224/RD?? */
+	cdev_disk_init(NHD,hd),		/* 58: HDC9224/RD?? */
 	cdev_disk_init(NSD,sd),		/* 59: SCSI disk */
 	cdev_tape_init(NST,st),		/* 60: SCSI tape */
 	cdev_disk_init(NCD,cd),		/* 61: SCSI CD-ROM */
diff --git a/sys/arch/vax/vax/rd_root.c b/sys/arch/vax/vax/rd_root.c
new file mode 100644
index 00000000000..5b90686b82c
--- /dev/null
+++ b/sys/arch/vax/vax/rd_root.c
@@ -0,0 +1,77 @@
+/*	$OpenBSD: rd_root.c,v 1.1 2000/10/31 02:30:57 hugh Exp $	*/
+/*	$NetBSD: rd_root.c,v 1.2 1996/03/27 16:38:33 perry Exp $	*/
+
+/*
+ * Copyright (c) 1995 Gordon W. Ross
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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/param.h>
+#include <sys/systm.h>
+#include <sys/reboot.h>
+
+#include <dev/ramdisk.h>
+
+extern int boothowto;
+
+#ifndef MINIROOTSIZE
+#define MINIROOTSIZE 4096
+#endif
+
+#define ROOTBYTES (MINIROOTSIZE << DEV_BSHIFT)
+
+/*
+ * This array will be patched to contain a file-system image.
+ * See the program:  src/distrib/sun3/common/rdsetroot.c
+ */
+int rd_root_size = ROOTBYTES;
+char rd_root_image[ROOTBYTES] = "|This is the root ramdisk!\n";
+
+/*
+ * This is called during autoconfig.
+ */
+void
+rd_attach_hook(unit, rd)
+	int unit;
+	struct rd_conf *rd;
+{
+	if (unit == 0) {
+		/* Setup root ramdisk */
+		rd->rd_addr = (caddr_t) rd_root_image;
+		rd->rd_size = (size_t)  rd_root_size;
+		rd->rd_type = RD_KMEM_FIXED;
+		printf("rd%d: fixed, %d blocks\n", unit, MINIROOTSIZE);
+	}
+}
+
+/*
+ * This is called during open (i.e. mountroot)
+ */
+void
+rd_open_hook(unit, rd)
+	int unit;
+	struct rd_conf *rd;
+{
+}