xref: /xnu-11215/osfmk/vm/memory_types.h (revision a5e72196)
1 /*
2  * Copyright (c) 2018 Apple 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,
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23  * Please see the License for the specific language governing rights and
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26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /* machine independent WIMG bits */
29 
30 #ifndef _VM_MEMORY_TYPES_H_
31 #define _VM_MEMORY_TYPES_H_
32 
33 #include <machine/memory_types.h>
34 
35 #define VM_MEM_GUARDED          0x1             /* (G) Guarded Storage */
36 #define VM_MEM_COHERENT         0x2             /* (M) Memory Coherency */
37 #define VM_MEM_NOT_CACHEABLE    0x4             /* (I) Cache Inhibit */
38 #define VM_MEM_WRITE_THROUGH    0x8             /* (W) Write-Through */
39 
40 #define VM_WIMG_USE_DEFAULT     0x80
41 #define VM_WIMG_MASK            0xFF
42 
43 #endif /* _VM_MEMORY_TYPES_H_ */
44