vm_phys.h revision 226928 
190075Sobrien/*-
290075Sobrien * Copyright (c) 2002-2006 Rice University
390075Sobrien * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
490075Sobrien * All rights reserved.
5132718Skan *
690075Sobrien * This software was developed for the FreeBSD Project by Alan L. Cox,
7132718Skan * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
8132718Skan *
9132718Skan * Redistribution and use in source and binary forms, with or without
10132718Skan * modification, are permitted provided that the following conditions
1190075Sobrien * are met:
12132718Skan * 1. Redistributions of source code must retain the above copyright
13132718Skan *    notice, this list of conditions and the following disclaimer.
14132718Skan * 2. Redistributions in binary form must reproduce the above copyright
15132718Skan *    notice, this list of conditions and the following disclaimer in the
1690075Sobrien *    documentation and/or other materials provided with the distribution.
17132718Skan *
18132718Skan * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19169689Skan * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20169689Skan * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
2190075Sobrien * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
2290075Sobrien * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
2390075Sobrien * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
2490075Sobrien * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
2590075Sobrien * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
2690075Sobrien * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2790075Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
2890075Sobrien * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2990075Sobrien * POSSIBILITY OF SUCH DAMAGE.
3090075Sobrien *
31 * $FreeBSD: head/sys/vm/vm_phys.h 226928 2011-10-30 05:06:14Z 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
43/* Domains must be dense (non-sparse) and zero-based. */
44struct mem_affinity {
45	vm_paddr_t start;
46	vm_paddr_t end;
47	int domain;
48};
49
50extern struct mem_affinity *mem_affinity;
51
52void vm_phys_add_page(vm_paddr_t pa);
53vm_page_t vm_phys_alloc_contig(u_long npages, vm_paddr_t low, vm_paddr_t high,
54    u_long alignment, vm_paddr_t boundary);
55vm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order);
56vm_page_t vm_phys_alloc_pages(int pool, int order);
57void vm_phys_free_contig(vm_page_t m, u_long npages);
58void vm_phys_free_pages(vm_page_t m, int order);
59void vm_phys_init(void);
60void vm_phys_set_pool(int pool, vm_page_t m, int order);
61boolean_t vm_phys_unfree_page(vm_page_t m);
62boolean_t vm_phys_zero_pages_idle(void);
63
64#endif	/* _KERNEL */
65#endif	/* !_VM_PHYS_H_ */
66