highmem.h revision 1.5 1 1.4 riastrad /* $NetBSD: highmem.h,v 1.5 2018/08/27 15:13:17 riastradh Exp $ */
2 1.2 riastrad
3 1.2 riastrad /*-
4 1.2 riastrad * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 1.2 riastrad * All rights reserved.
6 1.2 riastrad *
7 1.2 riastrad * This code is derived from software contributed to The NetBSD Foundation
8 1.2 riastrad * by Taylor R. Campbell.
9 1.2 riastrad *
10 1.2 riastrad * Redistribution and use in source and binary forms, with or without
11 1.2 riastrad * modification, are permitted provided that the following conditions
12 1.2 riastrad * are met:
13 1.2 riastrad * 1. Redistributions of source code must retain the above copyright
14 1.2 riastrad * notice, this list of conditions and the following disclaimer.
15 1.2 riastrad * 2. Redistributions in binary form must reproduce the above copyright
16 1.2 riastrad * notice, this list of conditions and the following disclaimer in the
17 1.2 riastrad * documentation and/or other materials provided with the distribution.
18 1.2 riastrad *
19 1.2 riastrad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.2 riastrad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.2 riastrad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.2 riastrad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.2 riastrad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.2 riastrad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.2 riastrad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.2 riastrad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.2 riastrad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.2 riastrad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.2 riastrad * POSSIBILITY OF SUCH DAMAGE.
30 1.2 riastrad */
31 1.2 riastrad
32 1.2 riastrad #ifndef _LINUX_HIGHMEM_H_
33 1.2 riastrad #define _LINUX_HIGHMEM_H_
34 1.2 riastrad
35 1.2 riastrad #include <sys/types.h>
36 1.2 riastrad #include <sys/queue.h>
37 1.2 riastrad
38 1.2 riastrad #include <uvm/uvm_extern.h>
39 1.2 riastrad
40 1.2 riastrad #include <linux/kernel.h>
41 1.2 riastrad #include <linux/mm_types.h>
42 1.2 riastrad
43 1.2 riastrad /* XXX Make the nm output a little more greppable... */
44 1.5 riastrad #define kmap(p) linux_kmap(p)
45 1.5 riastrad #define kmap_atomic(p) linux_kmap_atomic(p)
46 1.5 riastrad #define kunmap(p) linux_kunmap(p)
47 1.5 riastrad #define kunmap_atomic(p) linux_kunmap_atomic(p)
48 1.2 riastrad
49 1.3 riastrad /* XXX Kludge! */
50 1.3 riastrad #define kmap_atomic_prot(page, prot) kmap_atomic(page)
51 1.3 riastrad
52 1.2 riastrad int linux_kmap_init(void);
53 1.2 riastrad void linux_kmap_fini(void);
54 1.2 riastrad
55 1.2 riastrad void * kmap_atomic(struct page *);
56 1.2 riastrad void kunmap_atomic(void *);
57 1.2 riastrad
58 1.2 riastrad void * kmap(struct page *);
59 1.2 riastrad void kunmap(struct page *);
60 1.2 riastrad
61 1.2 riastrad #endif /* _LINUX_HIGHMEM_H_ */
62