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/* $OpenBSD: uvm_page.h,v 1.7 2001/03/22 03:05:56 smart Exp $ */
/* $NetBSD: uvm_page.h,v 1.13 1999/06/21 17:25:12 thorpej Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
* Copyright (c) 1991, 1993, The Regents of the University of California.
*
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* The Mach Operating System project at Carnegie-Mellon University.
*
* 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,
* Washington University, the University of California, Berkeley and
* its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)vm_page.h 7.3 (Berkeley) 4/21/91
* from: Id: uvm_page.h,v 1.1.2.6 1998/02/04 02:31:42 chuck Exp
*
*
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef _UVM_UVM_PAGE_H_
#define _UVM_UVM_PAGE_H_
/*
* uvm_page.h
*/
#ifdef _KERNEL
/*
* macros
*/
#define uvm_lock_pageq() simple_lock(&uvm.pageqlock)
#define uvm_unlock_pageq() simple_unlock(&uvm.pageqlock)
#define uvm_pagehash(obj,off) \
(((unsigned long)obj+(unsigned long)atop(off)) & uvm.page_hashmask)
/*
* handle inline options
*/
#ifdef UVM_PAGE_INLINE
#define PAGE_INLINE static __inline
#else
#define PAGE_INLINE /* nothing */
#endif /* UVM_PAGE_INLINE */
/*
* prototypes: the following prototypes define the interface to pages
*/
void uvm_page_init __P((vaddr_t *, vaddr_t *));
#if defined(UVM_PAGE_TRKOWN)
void uvm_page_own __P((struct vm_page *, char *));
#endif
#if !defined(PMAP_STEAL_MEMORY)
boolean_t uvm_page_physget __P((paddr_t *));
#endif
void uvm_page_rehash __P((void));
PAGE_INLINE int uvm_lock_fpageq __P((void));
PAGE_INLINE void uvm_unlock_fpageq __P((int));
PAGE_INLINE void uvm_pageactivate __P((struct vm_page *));
vaddr_t uvm_pageboot_alloc __P((vsize_t));
PAGE_INLINE void uvm_pagecopy __P((struct vm_page *, struct vm_page *));
PAGE_INLINE void uvm_pagedeactivate __P((struct vm_page *));
void uvm_pagefree __P((struct vm_page *));
PAGE_INLINE struct vm_page *uvm_pagelookup __P((struct uvm_object *, vaddr_t));
void uvm_pageremove __P((struct vm_page *));
/* uvm_pagerename: not needed */
PAGE_INLINE void uvm_pageunwire __P((struct vm_page *));
PAGE_INLINE void uvm_pagewait __P((struct vm_page *, int));
PAGE_INLINE void uvm_pagewake __P((struct vm_page *));
PAGE_INLINE void uvm_pagewire __P((struct vm_page *));
PAGE_INLINE void uvm_pagezero __P((struct vm_page *));
PAGE_INLINE int uvm_page_lookup_freelist __P((struct vm_page *));
#endif /* _KERNEL */
#endif /* _UVM_UVM_PAGE_H_ */
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