xref: /netbsd/share/man/man9/cpu_configure.9 (revision bf9ec67e)
1.\"     $NetBSD: cpu_configure.9,v 1.2 2002/05/25 11:08:21 wiz Exp $
2.\"
3.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
4.\" All rights reserved.
5.\"
6.\" This code is derived from software contributed to The NetBSD Foundation
7.\" by Gregory McGarry.
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.\" 3. All advertising materials mentioning features or use of this software
18.\"    must display the following acknowledgement:
19.\"        This product includes software developed by the NetBSD
20.\"        Foundation, Inc. and its contributors.
21.\" 4. Neither the name of The NetBSD Foundation nor the names of its
22.\"    contributors may be used to endorse or promote products derived
23.\"    from this software without specific prior written permission.
24.\"
25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35.\" POSSIBILITY OF SUCH DAMAGE.
36.\"
37.Dd May 23, 2002
38.Dt CPU_CONFIGURE 9
39.Os
40.Sh NAME
41.Nm cpu_configure
42.Nd machine-dependent device autoconfiguration
43.Sh SYNOPSIS
44.Fd #include \*[Lt]sys/systm.h\*[Gt]
45.Ft void
46.Fn cpu_configure "void"
47.Sh DESCRIPTION
48.Fn cpu_configure
49is called during system bootstrap to perform the machine-dependent
50portion of device autoconfiguration.  It sets the configuration
51machinery in motion by finding the root bus ("mainbus").  When this
52function returns, interrupts must be enabled.
53.Pp
54.Fn cpu_configure
55performs the following tasks:
56.Bl -bullet
57.It
58initialize soft interrupts (see
59.Xr softintr 9 )
60.It
61initialize CPU interrupts and SPLs
62.It
63call
64.Fn config_rootfound
65for "mainbus"
66.It
67complete any initialization deferred from
68.Fn cpu_startup .
69.El
70.Sh SEE ALSO
71.Xr autoconf 9 ,
72.Xr cpu_startup 9
73