page.h revision 289624 
1/* $FreeBSD: head/sys/ofed/include/linux/page.h 289624 2015-10-20 11:40:04Z hselasky $ */
2/*-
3 * Copyright (c) 2010 Isilon Systems, Inc.
4 * Copyright (c) 2010 iX Systems, Inc.
5 * Copyright (c) 2010 Panasas, Inc.
6 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice unmodified, this list of conditions, and the following
14 *    disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30#ifndef	_LINUX_PAGE_H_
31#define _LINUX_PAGE_H_
32
33#include <linux/types.h>
34
35#include <sys/param.h>
36
37#include <machine/atomic.h>
38#include <vm/vm.h>
39#include <vm/vm_page.h>
40
41#define page	vm_page
42
43#define	virt_to_page(x)	PHYS_TO_VM_PAGE(vtophys((x)))
44
45#define	clear_page(page)		memset((page), 0, PAGE_SIZE)
46#define	pgprot_noncached(prot)		VM_MEMATTR_UNCACHEABLE
47#define	pgprot_writecombine(prot)	VM_MEMATTR_WRITE_COMBINING
48
49#undef	PAGE_MASK
50#define	PAGE_MASK	(~(PAGE_SIZE-1))
51
52#endif	/* _LINUX_PAGE_H_ */
53