Annotation of sys/uvm/uvm_aobj.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: uvm_aobj.h,v 1.8 2002/03/14 01:27:18 millert Exp $ */
! 2: /* $NetBSD: uvm_aobj.h,v 1.10 2000/01/11 06:57:49 chs Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1998 Chuck Silvers, Charles D. Cranor and
! 6: * Washington University.
! 7: * All rights reserved.
! 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: * 3. All advertising materials mentioning features or use of this software
! 18: * must display the following acknowledgement:
! 19: * This product includes software developed by Charles D. Cranor and
! 20: * Washington University.
! 21: * 4. The name of the author may not be used to endorse or promote products
! 22: * derived from this software without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 25: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 26: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 27: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 28: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 29: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 30: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 31: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 32: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 33: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 34: *
! 35: * from: Id: uvm_aobj.h,v 1.1.2.4 1998/02/06 05:19:28 chs Exp
! 36: */
! 37: /*
! 38: * uvm_aobj.h: anonymous memory uvm_object pager
! 39: *
! 40: * author: Chuck Silvers <chuq@chuq.com>
! 41: * started: Jan-1998
! 42: *
! 43: * - design mostly from Chuck Cranor
! 44: */
! 45:
! 46: #ifndef _UVM_UVM_AOBJ_H_
! 47: #define _UVM_UVM_AOBJ_H_
! 48:
! 49: /*
! 50: * flags
! 51: */
! 52:
! 53: /* flags for uao_create: can only be used one time (at bootup) */
! 54: #define UAO_FLAG_KERNOBJ 0x1 /* create kernel object */
! 55: #define UAO_FLAG_KERNSWAP 0x2 /* enable kernel swap */
! 56:
! 57: /* internal flags */
! 58: #define UAO_FLAG_KILLME 0x4 /* aobj should die when last released
! 59: * page is no longer PG_BUSY ... */
! 60: #define UAO_FLAG_NOSWAP 0x8 /* aobj can't swap (kernel obj only!) */
! 61:
! 62: #ifdef _KERNEL
! 63:
! 64: /*
! 65: * prototypes
! 66: */
! 67:
! 68: void uao_init(void);
! 69: int uao_set_swslot(struct uvm_object *, int, int);
! 70: void uao_dropswap(struct uvm_object *, int);
! 71: int uao_swap_off(int, int);
! 72:
! 73: /*
! 74: * globals
! 75: */
! 76:
! 77: extern struct uvm_pagerops aobj_pager;
! 78:
! 79: #endif /* _KERNEL */
! 80:
! 81: #endif /* _UVM_UVM_AOBJ_H_ */
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