1*9490d37cSjmc.\" $OpenBSD: runway.4,v 1.5 2007/05/31 19:19:54 jmc Exp $ 2dac0ebebSmickey.\" 3dac0ebebSmickey.\" Copyright (c) 2004 Michael Shalayeff 4dac0ebebSmickey.\" All rights reserved. 5dac0ebebSmickey.\" 6dac0ebebSmickey.\" Redistribution and use in source and binary forms, with or without 7dac0ebebSmickey.\" modification, are permitted provided that the following conditions 8dac0ebebSmickey.\" are met: 9dac0ebebSmickey.\" 1. Redistributions of source code must retain the above copyright 10dac0ebebSmickey.\" notice, this list of conditions and the following disclaimer. 11dac0ebebSmickey.\" 2. Redistributions in binary form must reproduce the above copyright 12dac0ebebSmickey.\" notice, this list of conditions and the following disclaimer in the 13dac0ebebSmickey.\" documentation and/or other materials provided with the distribution. 14dac0ebebSmickey.\" 15dac0ebebSmickey.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16dac0ebebSmickey.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17dac0ebebSmickey.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18dac0ebebSmickey.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19dac0ebebSmickey.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20dac0ebebSmickey.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF MIND, 21dac0ebebSmickey.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22dac0ebebSmickey.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23dac0ebebSmickey.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24dac0ebebSmickey.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25dac0ebebSmickey.\" 26*9490d37cSjmc.Dd $Mdocdate: May 31 2007 $ 27bf7d18a1Smickey.Dt RUNWAY 4 hppa 28dac0ebebSmickey.Os 29dac0ebebSmickey.Sh NAME 30dac0ebebSmickey.Nm runway 31dac0ebebSmickey.Nd Runway bus 32dac0ebebSmickey.Sh SYNOPSIS 33dac0ebebSmickey.Cd "uturn* at mainbus?" 34dac0ebebSmickey.Sh DESCRIPTION 359cc2ffafSmickeyThe 369cc2ffafSmickey.Nm 372c2ec4bdSjmcbus is a CPU and memory bus on systems based on the PA-7200, 382c2ec4bdSjmcPA-8000, and later CPUs. 399cc2ffafSmickeyThe 409cc2ffafSmickey.Nm 419cc2ffafSmickeybus is a 64-bit multiplexed address/data bus with support for cache 422c2ec4bdSjmccoherency and allows up to 4-way SMP system configurations. 439cc2ffafSmickey.Pp 449cc2ffafSmickeyOne or two 459cc2ffafSmickey.Xr uturn 4 462c2ec4bdSjmcbridges connect the 479cc2ffafSmickey.Nm 489cc2ffafSmickeybus to the system's 499cc2ffafSmickey.Xr gsc 4 509cc2ffafSmickeyor 519cc2ffafSmickey.Xr pci 4 522c2ec4bdSjmcbuses. 53dac0ebebSmickey.Sh SEE ALSO 549cc2ffafSmickey.Xr cpu 4 , 55dac0ebebSmickey.Xr dino 4 , 56dac0ebebSmickey.Xr gsc 4 , 57dac0ebebSmickey.Xr intro 4 , 589cc2ffafSmickey.Xr pci 4 , 59dac0ebebSmickey.Xr uturn 4 60dac0ebebSmickey.Sh HISTORY 61dac0ebebSmickeyThe 62dac0ebebSmickey.Nm 63dac0ebebSmickeydriver 642c2ec4bdSjmcfirst appeared in 65dac0ebebSmickey.Ox 3.7 . 66