1.\" $NetBSD: z3rambd.4,v 1.3 2012/11/28 09:31:15 wiz Exp $ 2.\" 3.\" Copyright (c) 2012 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Radoslaw Kujawa. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd November 26, 2012 31.Dt Z3RAMBD 4 amiga 32.Os 33.Sh NAME 34.Nm z3rambd 35.Nd Zorro III RAM block device driver 36.Sh SYNOPSIS 37.Cd "z3rambd* at zbus0" 38.Cd "altmem* at z3rambd?" 39.Sh DESCRIPTION 40The 41.Nm 42driver provides support using Zorro III RAM boards as block devices (e.g. for 43swap). 44.Sh HARDWARE 45The 46.Nm 47driver supports the following hardware: 48.Bl -tag -offset indent 49.It AmigaKit ZorRAM 50.It DKB 3128 51.It FastLane Z3 52.It Individual Computers BigRamPlus 53.El 54.Sh SEE ALSO 55.Xr altmem 4 , 56.Xr boot 8 57.Sh HISTORY 58The 59.Nm 60device first appeared in 61.Nx 7.0 . 62.Sh AUTHORS 63.An -nosplit 64The 65.Nm 66driver was written by 67.An Radoslaw Kujawa 68.Aq radoslaw.kujawa@gmail.com . 69.Sh CAVEATS 70Currently it is up to the user to ensure that given memory board 71is not used by the kernel as normal RAM. 72It is usually safe to pass the 73.Ic -n0 74and 75.Ic -p 76parameters to boot loader. 77.Pp 78If the kernel is compiled without the 79.Nm 80driver, it is possible to use Zorro III 81memory boards as normal RAM in some configurations. 82However, this might have severe performance consequences. 83It is advised to use Zorro III memory boards as swap where possible. 84