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 * $FreeBSD$
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
52/*
53 * The following functions are only to be used by the virtual memory system.
54 */
55void vm_phys_add_page(vm_paddr_t pa);
56vm_page_t vm_phys_alloc_contig(u_long npages, vm_paddr_t low, vm_paddr_t high,
57    u_long alignment, u_long boundary);
58vm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order);
59vm_page_t vm_phys_alloc_pages(int pool, int order);
60void vm_phys_free_contig(vm_page_t m, u_long npages);
61int vm_phys_fictitious_reg_range(vm_paddr_t start, vm_paddr_t end,
62    vm_memattr_t memattr);
63void vm_phys_fictitious_unreg_range(vm_paddr_t start, vm_paddr_t end);
64vm_page_t vm_phys_fictitious_to_vm_page(vm_paddr_t pa);
65void vm_phys_free_pages(vm_page_t m, int order);
66void vm_phys_init(void);
67void vm_phys_set_pool(int pool, vm_page_t m, int order);
68boolean_t vm_phys_unfree_page(vm_page_t m);
69boolean_t vm_phys_zero_pages_idle(void);
70
71#endif	/* _KERNEL */
72#endif	/* !_VM_PHYS_H_ */
73