1/*
2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
49 * School of Computer Science
50 * Carnegie Mellon University
51 * Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56/*
57 */
58/*
59 * Author: David B. Golub, Carnegie Mellon University
60 * Date: 8/89
61 */
62
63#ifndef _DEVICE_DEVICE_PORT_H_
64#define _DEVICE_DEVICE_PORT_H_
65
66#include <device/device_types.h>
67
68/*
69 * Master privileged I/O object for this host
70 */
71extern mach_port_t main_device_port;
72
73#define DEVICE_PAGER_GUARDED 0x1
74#define DEVICE_PAGER_COHERENT 0x2
75#define DEVICE_PAGER_CACHE_INHIB 0x4
76#define DEVICE_PAGER_WRITE_THROUGH 0x8
77#define DEVICE_PAGER_CONTIGUOUS 0x100
78#define DEVICE_PAGER_NOPHYSCACHE 0x200
79
80#ifdef XNU_KERNEL_PRIVATE
81#include <vm/memory_types.h>
82
83_Static_assert(((DEVICE_PAGER_CONTIGUOUS | DEVICE_PAGER_NOPHYSCACHE) & VM_WIMG_MASK) == 0,
84 "device pager flags overlap WIMG mask");
85
86/* Assert on the backwards-compatible DEVICE_PAGER* values */
87_Static_assert(DEVICE_PAGER_GUARDED == VM_MEM_GUARDED, "DEVICE_PAGER_GUARDED != VM_MEM_GUARDED");
88_Static_assert(DEVICE_PAGER_COHERENT == VM_MEM_COHERENT, "DEVICE_PAGER_COHERENT != VM_MEM_COHERENT");
89_Static_assert(DEVICE_PAGER_CACHE_INHIB == VM_MEM_NOT_CACHEABLE, "DEVICE_PAGER_CACHE_INHIB != VM_MEM_NOT_CACHEABLE");
90_Static_assert(DEVICE_PAGER_WRITE_THROUGH == VM_MEM_WRITE_THROUGH, "DEVICE_PAGER_WRITE_THROUGH != VM_MEM_WRITE_THROUGH");
91
92#endif /* KERNEL_PRIVATE */
93
94#endif /* _DEVICE_DEVICE_PORT_H_ */
95