1 .\" $NetBSD: intio.4,v 1.7 2003/06/26 10:12:38 wiz Exp $
3 .\" Copyright (c) 1998 MINOURA Makoto
4 .\" Copyright (c) 1998 NetBSD Foundation, Inc.
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37 .Nd X68K internal I/O space driver
39 .Cd "intio0 at mainbus0"
42 is a virtual device corresponding to the x68k internal I/O space.
44 Internal I/O space spans from 0xc00000 to 0xffffff of the x68k
45 physical address space, and is mapped permanently in the kernel virtual space
46 at the very early time of the kernel startup procedure.
49 driver manages the internal I/O space of x68k.
51 .Bl -bullet -offset indent
53 Address range management to avoid confliction of address space of
54 which devices probe by touching hardware port is difficult.
56 Interrupt vector management.
63 Other utility functions.
67 is always required to run the