page.h revision 290135 
1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
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 unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sys/compat/linuxkpi/common/include/linux/page.h 290135 2015-10-29 08:28:39Z hselasky $
30 */
31#ifndef	_LINUX_PAGE_H_
32#define _LINUX_PAGE_H_
33
34#include <linux/types.h>
35
36#include <sys/param.h>
37
38#include <machine/atomic.h>
39#include <vm/vm.h>
40#include <vm/vm_page.h>
41
42#define page	vm_page
43
44#define	virt_to_page(x)	PHYS_TO_VM_PAGE(vtophys((x)))
45
46#define	clear_page(page)		memset((page), 0, PAGE_SIZE)
47#define	pgprot_noncached(prot)		VM_MEMATTR_UNCACHEABLE
48#define	pgprot_writecombine(prot)	VM_MEMATTR_WRITE_COMBINING
49
50#undef	PAGE_MASK
51#define	PAGE_MASK	(~(PAGE_SIZE-1))
52
53#endif	/* _LINUX_PAGE_H_ */
54