/* $NetBSD: uvm_pager_i.h,v 1.12 2002/12/01 22:58:43 matt Exp $ */ /* * * Copyright (c) 1997 Charles D. Cranor and Washington University. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles D. Cranor and * Washington University. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * from: Id: uvm_pager_i.h,v 1.1.2.2 1997/10/09 23:05:46 chuck Exp */ /* * uvm_pager_i.h */ /* * inline functions [maybe] */ #if defined(UVM_PAGER_INLINE) || defined(UVM_PAGER) #ifndef _UVM_UVM_PAGER_I_H_ #define _UVM_UVM_PAGER_I_H_ /* * uvm_pageratop: convert KVAs in the pager map back to their page * structures. */ PAGER_INLINE struct vm_page * uvm_pageratop(kva) vaddr_t kva; { struct vm_page *pg; paddr_t pa; boolean_t rv; rv = pmap_extract(pmap_kernel(), kva, &pa); KASSERT(rv); pg = PHYS_TO_VM_PAGE(pa); KASSERT(pg != NULL); return (pg); } #endif /* _UVM_UVM_PAGER_I_H_ */ #endif /* defined(UVM_PAGER_INLINE) || defined(UVM_PAGER) */