sys/uvm/uvm_pdpolicy.h

   1 /*      $NetBSD: uvm_pdpolicy.h,v 1.3 2007/02/21 23:00:14 thorpej 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 bool 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 bool 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_ */