vm.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009 Hudson River Trading LLC
5 * Written by: John H. Baldwin <jhb@FreeBSD.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/amd64/include/vm.h 330897 2018-03-14 03:19:51Z eadler $
30 */
31
32#ifndef _MACHINE_VM_H_
33#define	_MACHINE_VM_H_
34
35#include <machine/specialreg.h>
36
37/* Memory attributes. */
38#define	VM_MEMATTR_UNCACHEABLE		((vm_memattr_t)PAT_UNCACHEABLE)
39#define	VM_MEMATTR_WRITE_COMBINING	((vm_memattr_t)PAT_WRITE_COMBINING)
40#define	VM_MEMATTR_WRITE_THROUGH	((vm_memattr_t)PAT_WRITE_THROUGH)
41#define	VM_MEMATTR_WRITE_PROTECTED	((vm_memattr_t)PAT_WRITE_PROTECTED)
42#define	VM_MEMATTR_WRITE_BACK		((vm_memattr_t)PAT_WRITE_BACK)
43#define	VM_MEMATTR_WEAK_UNCACHEABLE	((vm_memattr_t)PAT_UNCACHED)
44
45#define	VM_MEMATTR_DEFAULT		VM_MEMATTR_WRITE_BACK
46
47#endif /* !_MACHINE_VM_H_ */
48