1 /* $NetBSD: uvm_pdpolicy.h,v 1.2 2006/09/15 15:51:13 yamt Exp $ */
2
3 /*-
4 * Copyright (c)2005, 2006 YAMAMOTO Takashi,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #ifndef _UVM_PDPOLICY_H_
30 #define _UVM_PDPOLICY_H_
31
32 struct vm_page;
33 struct vm_anon;
34
35 /*
36 * these API is for uvm internal use only.
37 * don't use them directly from outside of /sys/uvm.
38 */
39
40 void uvmpdpol_init(void);
41 void uvmpdpol_reinit(void);
42 void uvmpdpol_estimatepageable(int *, int *);
43 boolean_t uvmpdpol_needsscan_p(void);
44
45 void uvmpdpol_pageactivate(struct vm_page *);
46 void uvmpdpol_pagedeactivate(struct vm_page *);
47 void uvmpdpol_pagedequeue(struct vm_page *);
48 void uvmpdpol_pageenqueue(struct vm_page *);
49 boolean_t uvmpdpol_pageisqueued_p(struct vm_page *);
50 void uvmpdpol_anfree(struct vm_anon *);
51
52 void uvmpdpol_tune(void);
53 void uvmpdpol_scaninit(void);
54 struct vm_page *uvmpdpol_selectvictim(void);
55 void uvmpdpol_balancequeue(int);
56
57 void uvmpdpol_sysctlsetup(void);
58
59 #endif /* !_UVM_PDPOLICY_H_ */
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