vm_reserv.h revision 250577
1254721Semaste/*- 2254721Semaste * Copyright (c) 2002-2006 Rice University 3254721Semaste * Copyright (c) 2007-2008 Alan L. Cox <alc@cs.rice.edu> 4254721Semaste * All rights reserved. 5254721Semaste * 6254721Semaste * This software was developed for the FreeBSD Project by Alan L. Cox, 7254721Semaste * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro. 8254721Semaste * 9254721Semaste * Redistribution and use in source and binary forms, with or without 10254721Semaste * modification, are permitted provided that the following conditions 11254721Semaste * are met: 12254721Semaste * 1. Redistributions of source code must retain the above copyright 13254721Semaste * notice, this list of conditions and the following disclaimer. 14254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 15254721Semaste * notice, this list of conditions and the following disclaimer in the 16254721Semaste * documentation and/or other materials provided with the distribution. 17254721Semaste * 18254721Semaste * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19296417Sdim * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20254721Semaste * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21254721Semaste * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22254721Semaste * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23254721Semaste * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24254721Semaste * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 25254721Semaste * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26254721Semaste * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27254721Semaste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY 28254721Semaste * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29254721Semaste * POSSIBILITY OF SUCH DAMAGE. 30254721Semaste * 31254721Semaste * $FreeBSD: head/sys/vm/vm_reserv.h 250577 2013-05-12 16:50:18Z alc $ 32254721Semaste */ 33254721Semaste 34254721Semaste/* 35254721Semaste * Superpage reservation management definitions 36254721Semaste */ 37254721Semaste 38254721Semaste#ifndef _VM_RESERV_H_ 39254721Semaste#define _VM_RESERV_H_ 40254721Semaste 41254721Semaste#ifdef _KERNEL 42254721Semaste 43254721Semaste#if VM_NRESERVLEVEL > 0 44254721Semaste 45254721Semaste/* 46254721Semaste * The following functions are only to be used by the virtual memory system. 47296417Sdim */ 48254721Semastevm_page_t vm_reserv_alloc_contig(vm_object_t object, vm_pindex_t pindex, 49254721Semaste u_long npages, vm_paddr_t low, vm_paddr_t high, 50254721Semaste u_long alignment, vm_paddr_t boundary); 51254721Semastevm_page_t vm_reserv_alloc_page(vm_object_t object, vm_pindex_t pindex, 52254721Semaste vm_page_t mpred); 53254721Semastevoid vm_reserv_break_all(vm_object_t object); 54254721Semasteboolean_t vm_reserv_free_page(vm_page_t m); 55254721Semastevoid vm_reserv_init(void); 56254721Semasteint vm_reserv_level_iffullpop(vm_page_t m); 57254721Semasteboolean_t vm_reserv_reactivate_page(vm_page_t m); 58254721Semasteboolean_t vm_reserv_reclaim_contig(u_long npages, vm_paddr_t low, 59254721Semaste vm_paddr_t high, u_long alignment, vm_paddr_t boundary); 60254721Semasteboolean_t vm_reserv_reclaim_inactive(void); 61254721Semastevoid vm_reserv_rename(vm_page_t m, vm_object_t new_object, 62254721Semaste vm_object_t old_object, vm_pindex_t old_object_offset); 63254721Semastevm_paddr_t vm_reserv_startup(vm_offset_t *vaddr, vm_paddr_t end, 64254721Semaste vm_paddr_t high_water); 65296417Sdim 66296417Sdim#endif /* VM_NRESERVLEVEL > 0 */ 67296417Sdim#endif /* _KERNEL */ 68254721Semaste#endif /* !_VM_RESERV_H_ */ 69254721Semaste