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uvm_aobj.h revision 1.6
      1  1.6    chs /*	$NetBSD: uvm_aobj.h,v 1.6 1998/02/12 07:36:45 chs Exp $	*/
      2  1.1    mrg 
      3  1.4    mrg /*
      4  1.6    chs  * XXXCDC: "ROUGH DRAFT" QUALITY UVM PRE-RELEASE FILE!
      5  1.6    chs  *	   >>>USE AT YOUR OWN RISK, WORK IS NOT FINISHED<<<
      6  1.6    chs  */
      7  1.6    chs /*
      8  1.6    chs  * Copyright (c) 1998 Chuck Silvers, Charles D. Cranor and
      9  1.6    chs  *                    Washington University.
     10  1.6    chs  * All rights reserved.
     11  1.6    chs  *
     12  1.6    chs  * Redistribution and use in source and binary forms, with or without
     13  1.6    chs  * modification, are permitted provided that the following conditions
     14  1.6    chs  * are met:
     15  1.6    chs  * 1. Redistributions of source code must retain the above copyright
     16  1.6    chs  *    notice, this list of conditions and the following disclaimer.
     17  1.6    chs  * 2. Redistributions in binary form must reproduce the above copyright
     18  1.6    chs  *    notice, this list of conditions and the following disclaimer in the
     19  1.6    chs  *    documentation and/or other materials provided with the distribution.
     20  1.6    chs  * 3. All advertising materials mentioning features or use of this software
     21  1.6    chs  *    must display the following acknowledgement:
     22  1.6    chs  *      This product includes software developed by Charles D. Cranor and
     23  1.6    chs  *      Washington University.
     24  1.6    chs  * 4. The name of the author may not be used to endorse or promote products
     25  1.6    chs  *    derived from this software without specific prior written permission.
     26  1.6    chs  *
     27  1.6    chs  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     28  1.6    chs  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     29  1.6    chs  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     30  1.6    chs  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     31  1.6    chs  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     32  1.6    chs  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     33  1.6    chs  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     34  1.6    chs  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     35  1.6    chs  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     36  1.6    chs  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     37  1.6    chs  *
     38  1.4    mrg  * from: Id: uvm_aobj.h,v 1.1.2.4 1998/02/06 05:19:28 chs Exp
     39  1.4    mrg  */
     40  1.1    mrg /*
     41  1.6    chs  * uvm_aobj.h: anonymous memory uvm_object pager
     42  1.6    chs  *
     43  1.6    chs  * author: Chuck Silvers <chuq (at) chuq.com>
     44  1.6    chs  * started: Jan-1998
     45  1.1    mrg  *
     46  1.6    chs  * - design mostly from Chuck Cranor
     47  1.1    mrg  */
     48  1.1    mrg 
     49  1.5  perry #ifndef _UVM_UVM_AOBJ_H_
     50  1.5  perry #define _UVM_UVM_AOBJ_H_
     51  1.1    mrg 
     52  1.1    mrg /*
     53  1.1    mrg  * flags
     54  1.1    mrg  */
     55  1.1    mrg 
     56  1.1    mrg /* flags for uao_create: can only be used one time (at bootup) */
     57  1.1    mrg #define UAO_FLAG_KERNOBJ	0x1	/* create kernel object */
     58  1.1    mrg #define UAO_FLAG_KERNSWAP	0x2	/* enable kernel swap */
     59  1.1    mrg 
     60  1.1    mrg /* internal flags */
     61  1.1    mrg #define UAO_FLAG_KILLME		0x4	/* aobj should die when last released
     62  1.1    mrg 					 * page is no longer PG_BUSY ... */
     63  1.1    mrg #define UAO_FLAG_NOSWAP		0x8	/* aobj can't swap (kernel obj only!) */
     64  1.1    mrg 
     65  1.1    mrg /*
     66  1.1    mrg  * prototypes
     67  1.1    mrg  */
     68  1.1    mrg 
     69  1.1    mrg int uao_set_swslot __P((struct uvm_object *, int, int));
     70  1.3    chs 
     71  1.3    chs /*
     72  1.3    chs  * globals
     73  1.3    chs  */
     74  1.3    chs 
     75  1.3    chs extern struct uvm_pagerops aobj_pager;
     76  1.3    chs 
     77  1.5  perry #endif /* _UVM_UVM_AOBJ_H_ */
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