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 [email protected] 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 */ 71 extern 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