1 /* $OpenBSD: uvm_swap.h,v 1.11 2002/03/14 01:27:19 millert Exp $ */
2 /* $NetBSD: uvm_swap.h,v 1.5 2000/01/11 06:57:51 chs Exp $ */
3
4 /*
5 * Copyright (c) 1997 Matthew R. Green
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 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
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,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * from: Id: uvm_swap.h,v 1.1.2.6 1997/12/15 05:39:31 mrg Exp
32 */
33
34 #ifndef _UVM_UVM_SWAP_H_
35 #define _UVM_UVM_SWAP_H_
36
37 #define SWSLOT_BAD (-1)
38
39 #ifdef _KERNEL
40
41 int uvm_swap_get(struct vm_page *, int, int);
42 int uvm_swap_put(int, struct vm_page **, int, int);
43 int uvm_swap_alloc(int *, boolean_t);
44 void uvm_swap_free(int, int);
45 void uvm_swap_markbad(int, int);
46 #ifdef UVM_SWAP_ENCRYPT
47 void uvm_swap_initcrypt_all(void);
48 void uvm_swap_freepages(struct vm_page **, int);
49 #endif
50
51 #endif /* _KERNEL */
52
53 #endif /* _UVM_UVM_SWAP_H_ */