xref: /freebsd/sys/i386/include/vm.h (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
1 /*-
2  * Copyright (c) 2009 Advanced Computing Technologies LLC
3  * Written by: John H. Baldwin <jhb@FreeBSD.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef _MACHINE_VM_H_
31 #define	_MACHINE_VM_H_
32 
33 #include <machine/specialreg.h>
34 
35 /* Memory attributes. */
36 #define	VM_MEMATTR_UNCACHEABLE		((vm_memattr_t)PAT_UNCACHEABLE)
37 #define	VM_MEMATTR_WRITE_COMBINING	((vm_memattr_t)PAT_WRITE_COMBINING)
38 #define	VM_MEMATTR_WRITE_THROUGH	((vm_memattr_t)PAT_WRITE_THROUGH)
39 #define	VM_MEMATTR_WRITE_PROTECTED	((vm_memattr_t)PAT_WRITE_PROTECTED)
40 #define	VM_MEMATTR_WRITE_BACK		((vm_memattr_t)PAT_WRITE_BACK)
41 #define	VM_MEMATTR_UNCACHED		((vm_memattr_t)PAT_UNCACHED)
42 
43 #define	VM_MEMATTR_DEFAULT		VM_MEMATTR_WRITE_BACK
44 
45 #endif /* !_MACHINE_VM_H_ */
46