vm_phys.h revision 227568
1170477Salc/*- 2170477Salc * Copyright (c) 2002-2006 Rice University 3172317Salc * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu> 4170477Salc * All rights reserved. 5170477Salc * 6170477Salc * This software was developed for the FreeBSD Project by Alan L. Cox, 7170477Salc * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro. 8170477Salc * 9170477Salc * Redistribution and use in source and binary forms, with or without 10170477Salc * modification, are permitted provided that the following conditions 11170477Salc * are met: 12170477Salc * 1. Redistributions of source code must retain the above copyright 13170477Salc * notice, this list of conditions and the following disclaimer. 14170477Salc * 2. Redistributions in binary form must reproduce the above copyright 15170477Salc * notice, this list of conditions and the following disclaimer in the 16170477Salc * documentation and/or other materials provided with the distribution. 17170477Salc * 18170477Salc * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19170477Salc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20170477Salc * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21170477Salc * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22170477Salc * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23170477Salc * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24170477Salc * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 25170477Salc * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26170477Salc * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27170477Salc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY 28170477Salc * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29170477Salc * POSSIBILITY OF SUCH DAMAGE. 30170477Salc * 31170477Salc * $FreeBSD: head/sys/vm/vm_phys.h 227568 2011-11-16 16:46:09Z alc $ 32170477Salc */ 33170477Salc 34170477Salc/* 35170477Salc * Physical memory system definitions 36170477Salc */ 37170477Salc 38170477Salc#ifndef _VM_PHYS_H_ 39170477Salc#define _VM_PHYS_H_ 40170477Salc 41174821Salc#ifdef _KERNEL 42174821Salc 43210550Sjhb/* Domains must be dense (non-sparse) and zero-based. */ 44210550Sjhbstruct mem_affinity { 45210550Sjhb vm_paddr_t start; 46210550Sjhb vm_paddr_t end; 47210550Sjhb int domain; 48210550Sjhb}; 49210550Sjhb 50210550Sjhbextern struct mem_affinity *mem_affinity; 51210550Sjhb 52227568Salc/* 53227568Salc * The following functions are only to be used by the virtual memory system. 54227568Salc */ 55170477Salcvoid vm_phys_add_page(vm_paddr_t pa); 56226928Salcvm_page_t vm_phys_alloc_contig(u_long npages, vm_paddr_t low, vm_paddr_t high, 57226928Salc u_long alignment, vm_paddr_t boundary); 58210327Sjchandravm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order); 59170477Salcvm_page_t vm_phys_alloc_pages(int pool, int order); 60226928Salcvoid vm_phys_free_contig(vm_page_t m, u_long npages); 61170477Salcvoid vm_phys_free_pages(vm_page_t m, int order); 62170477Salcvoid vm_phys_init(void); 63172317Salcvoid vm_phys_set_pool(int pool, vm_page_t m, int order); 64174821Salcboolean_t vm_phys_unfree_page(vm_page_t m); 65170477Salcboolean_t vm_phys_zero_pages_idle(void); 66170477Salc 67174821Salc#endif /* _KERNEL */ 68170477Salc#endif /* !_VM_PHYS_H_ */ 69