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. */ 44 struct mem_affinity { 45 vm_paddr_t start; 46 vm_paddr_t end; 47 int domain; 48 }; 49 50 extern struct mem_affinity *mem_affinity; 51 52 /* 53 * The following functions are only to be used by the virtual memory system. 54 */ 55 void vm_phys_add_page(vm_paddr_t pa); 56 vm_page_t vm_phys_alloc_contig(u_long npages, vm_paddr_t low, vm_paddr_t high, 57 u_long alignment, vm_paddr_t boundary); 58 vm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order); 59 vm_page_t vm_phys_alloc_pages(int pool, int order); 60 void vm_phys_free_contig(vm_page_t m, u_long npages); 61 void vm_phys_free_pages(vm_page_t m, int order); 62 void vm_phys_init(void); 63 void vm_phys_set_pool(int pool, vm_page_t m, int order); 64 boolean_t vm_phys_unfree_page(vm_page_t m); 65 boolean_t vm_phys_zero_pages_idle(void); 66 67 #endif /* _KERNEL */ 68 #endif /* !_VM_PHYS_H_ */ 69