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 | |