1 /* $OpenBSD: uvm_swap.h,v 1.20 2023/10/27 19:18:53 mpi 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * from: Id: uvm_swap.h,v 1.1.2.6 1997/12/15 05:39:31 mrg Exp 30 */ 31 32 #ifndef _UVM_UVM_SWAP_H_ 33 #define _UVM_UVM_SWAP_H_ 34 35 #define SWCLUSTPAGES (MAXBSIZE >> PAGE_SHIFT) 36 #define SWSLOT_BAD (-1) 37 38 #ifdef _KERNEL 39 40 int uvm_swap_get(struct vm_page *, int, int); 41 int uvm_swap_put(int, struct vm_page **, int, int); 42 int uvm_swap_alloc(int *, boolean_t); 43 void uvm_swap_free(int, int); 44 void uvm_swap_markbad(int, int); 45 int uvm_swapisfilled(void); 46 int uvm_swapisfull(void); 47 void uvm_swap_freepages(struct vm_page **, int); 48 #ifdef HIBERNATE 49 int uvm_hibswap(dev_t, u_long *, u_long *); 50 #endif /* HIBERNATE */ 51 #ifdef UVM_SWAP_ENCRYPT 52 void uvm_swap_initcrypt_all(void); 53 void uvm_swap_finicrypt_all(void); 54 #endif 55 56 #endif /* _KERNEL */ 57 58 #endif /* _UVM_UVM_SWAP_H_ */ 59