1 /* $NetBSD: uvm_loan.h,v 1.17 2011/02/02 15:13:34 chuck Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 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 ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * from: Id: uvm_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp 28 */ 29 30 #ifndef _UVM_UVM_LOAN_H_ 31 #define _UVM_UVM_LOAN_H_ 32 33 #ifdef _KERNEL 34 35 /* 36 * flags for uvm_loan() 37 */ 38 39 #define UVM_LOAN_TOANON 0x1 /* loan to anon */ 40 #define UVM_LOAN_TOPAGE 0x2 /* loan to page */ 41 42 /* 43 * loan prototypes 44 */ 45 46 void uvm_loan_init(void); 47 int uvm_loan(struct vm_map *, vaddr_t, vsize_t, void *, int); 48 void uvm_unloan(void *, int, int); 49 int uvm_loanuobjpages(struct uvm_object *, voff_t, int, 50 struct vm_page **); 51 struct vm_page *uvm_loanbreak(struct vm_page *); 52 int uvm_loanbreak_anon(struct vm_anon *, struct uvm_object *); 53 54 #endif /* _KERNEL */ 55 56 #endif /* _UVM_UVM_LOAN_H_ */ 57