1 /*- 2 * Copyright (c) 2002-2006 Rice University 3 * Copyright (c) 2007-2008 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 * Superpage reservation management definitions 36 */ 37 38 #ifndef _VM_RESERV_H_ 39 #define _VM_RESERV_H_ 40 41 #ifdef _KERNEL 42 43 #if VM_NRESERVLEVEL > 0 44 45 vm_page_t vm_reserv_alloc_page(vm_object_t object, vm_pindex_t pindex); 46 void vm_reserv_break_all(vm_object_t object); 47 boolean_t vm_reserv_free_page(vm_page_t m); 48 void vm_reserv_init(void); 49 int vm_reserv_level_iffullpop(vm_page_t m); 50 boolean_t vm_reserv_reactivate_page(vm_page_t m); 51 boolean_t vm_reserv_reclaim_contig(vm_paddr_t size, vm_paddr_t low, 52 vm_paddr_t high, unsigned long alignment, 53 unsigned long boundary); 54 boolean_t vm_reserv_reclaim_inactive(void); 55 void vm_reserv_rename(vm_page_t m, vm_object_t new_object, 56 vm_object_t old_object, vm_pindex_t old_object_offset); 57 vm_paddr_t vm_reserv_startup(vm_offset_t *vaddr, vm_paddr_t end, 58 vm_paddr_t high_water); 59 60 #endif /* VM_NRESERVLEVEL > 0 */ 61 #endif /* _KERNEL */ 62 #endif /* !_VM_RESERV_H_ */ 63