| 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 | |