1*9490d37cSjmc.\" $OpenBSD: astro.4,v 1.3 2007/05/31 19:19:54 jmc Exp $ 2746fae05Skettenis.\" 3746fae05Skettenis.\" Copyright (c) 2007 Mark Kettenis <kettenis@openbsd.org> 4746fae05Skettenis.\" 5746fae05Skettenis.\" Permission to use, copy, modify, and distribute this software for any 6746fae05Skettenis.\" purpose with or without fee is hereby granted, provided that the above 7746fae05Skettenis.\" copyright notice and this permission notice appear in all copies. 8746fae05Skettenis.\" 9746fae05Skettenis.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10746fae05Skettenis.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11746fae05Skettenis.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12746fae05Skettenis.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13746fae05Skettenis.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14746fae05Skettenis.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15746fae05Skettenis.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16746fae05Skettenis.\" 17*9490d37cSjmc.Dd $Mdocdate: May 31 2007 $ 18746fae05Skettenis.Dt ASTRO 4 hppa 19746fae05Skettenis.Os 20746fae05Skettenis.Sh NAME 21746fae05Skettenis.Nm astro 22beca2617Sjmc.Nd Astro Memory and I/O controller 23746fae05Skettenis.Sh SYNOPSIS 24746fae05Skettenis.Cd "astro* at mainbus?" 25746fae05Skettenis.Cd "elroy* at astro?" 26746fae05Skettenis.Sh DESCRIPTION 27746fae05SkettenisThe 28746fae05Skettenis.Nm 29746fae05Skettenisdriver provides support for the Astro memory and I/O controller used 30beca2617Sjmcon systems with PA-8500 and later 64-bit CPUs. 31beca2617SjmcIt functions as a bridge from the Runway bus to 32beca2617Sjmcup to 8 I/O ropes that connect to Elroy chips. 33746fae05SkettenisAstro contains an IOMMU and provides support for cache coherent DMA. 34746fae05Skettenis.Sh SEE ALSO 35746fae05Skettenis.Xr cpu 4 , 36746fae05Skettenis.Xr elroy 4 , 37746fae05Skettenis.Xr intro 4 , 38746fae05Skettenis.Xr runway 4 39746fae05Skettenis.Sh HISTORY 40746fae05SkettenisThe 41746fae05Skettenis.Nm 42746fae05Skettenisdriver first appeared in 43746fae05Skettenis.Ox 4.2 . 44