1/*	$NetBSD: highmem.h,v 1.6 2021/12/19 10:51:24 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LINUX_HIGHMEM_H_
33#define _LINUX_HIGHMEM_H_
34
35#include <sys/types.h>
36#include <sys/queue.h>
37
38#include <uvm/uvm_extern.h>
39
40#include <linux/kernel.h>
41#include <linux/mm.h>
42#include <linux/mm_types.h>
43
44/* XXX Make the nm output a little more greppable...  */
45#define	kmap(p)			linux_kmap(p)
46#define	kmap_atomic(p)		linux_kmap_atomic(p)
47#define	kunmap(p)		linux_kunmap(p)
48#define	kunmap_atomic(p)	linux_kunmap_atomic(p)
49
50/* XXX Kludge!  */
51#define	kmap_atomic_prot(page, prot)	kmap_atomic(page)
52
53int	linux_kmap_init(void);
54void	linux_kmap_fini(void);
55
56void *	kmap_atomic(struct page *);
57void	kunmap_atomic(void *);
58
59void *	kmap(struct page *);
60void	kunmap(struct page *);
61
62#endif  /* _LINUX_HIGHMEM_H_ */
63