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Diffstat (limited to 'share/man/man4/man4.sgi/mainbus.4')
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diff --git a/share/man/man4/man4.sgi/mainbus.4 b/share/man/man4/man4.sgi/mainbus.4 new file mode 100644 index 00000000000..dc5422d6313 --- /dev/null +++ b/share/man/man4/man4.sgi/mainbus.4 @@ -0,0 +1,44 @@ +.\" $OpenBSD: mainbus.4,v 1.1 2007/11/28 16:27:29 jsing Exp $ +.\" +.\" Copyright (c) 2007 Joel Sing <jsing@openbsd.org> +.\" +.\" Permission to use, copy, modify, and distribute this software for any +.\" purpose with or without fee is hereby granted, provided that the above +.\" copyright notice and this permission notice appear in all copies. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.Dd $Mdocdate: November 28 2007 $ +.Dt MAINBUS 4 sgi +.Os +.Sh NAME +.Nm mainbus +.Nd SGI main processor bus device +.Sh SYNOPSIS +.Cd "mainbus0 at root" +.Cd "cpu* at mainbus0" +.Cd "macebus0 at mainbus0" +.Cd "gbe0 at mainbus0" +.Sh DESCRIPTION +The +.Nm +interface serves as an abstraction used by the autoconfiguration system to help +find and attach buses or devices connected to the main processor bus. +.Pp +In SGI O2 machines, +.Nm +corresponds to the CRIME (CPU, Rendering, Interconnect and Memory Engine) bus +which acts as a bridge between the CPU, main memory, MACE (Multimedia, +Audio and Communications Engine) bus, Video Image Compression Engine (VICE) +and Graphics Back End (GBE). +.Sh SEE ALSO +.Xr autoconf 4 , +.Xr gbe 4 , +.Xr intro 4 , +.Xr macebus 4 |