vm_phys.h revision 174821 
1/*-
2 * Copyright (c) 2002-2006 Rice University
3 * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Alan L. Cox,
7 * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
22 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
25 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
28 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $FreeBSD: head/sys/vm/vm_phys.h 174821 2007-12-20 22:45:54Z alc $
32 */
33
34/*
35 *	Physical memory system definitions
36 */
37
38#ifndef	_VM_PHYS_H_
39#define	_VM_PHYS_H_
40
41#ifdef _KERNEL
42
43void vm_phys_add_page(vm_paddr_t pa);
44vm_page_t vm_phys_alloc_contig(unsigned long npages,
45    vm_paddr_t low, vm_paddr_t high,
46    unsigned long alignment, unsigned long boundary);
47vm_page_t vm_phys_alloc_pages(int pool, int order);
48vm_paddr_t vm_phys_bootstrap_alloc(vm_size_t size, unsigned long alignment);
49void vm_phys_free_pages(vm_page_t m, int order);
50void vm_phys_init(void);
51void vm_phys_set_pool(int pool, vm_page_t m, int order);
52boolean_t vm_phys_unfree_page(vm_page_t m);
53boolean_t vm_phys_zero_pages_idle(void);
54
55#endif	/* _KERNEL */
56#endif	/* !_VM_PHYS_H_ */
57