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NetBSD/sys/uvm/uvm_loan.h

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add new UVM_LOAN_WIRED flag - the memory pages loaned in TOPAGE case are only wired if this flag is present (i.e. they are not wired by default now) loaned pages are unloaned via new uvm_unloan(), uvm_unloananon() and uvm_unloanpage() are no longer exported adjust uvm_unloanpage() to unwire the pages if UVM_LOAN_WIRED is specified mark uvm_loanuobj() and uvm_loanzero() static also in function implementation kern/sys_pipe.c: uvm_unloanpage() --> uvm_unloan()
2001-09-22 09:58:04 +04:00
/* $NetBSD: uvm_loan.h,v 1.8 2001/09/22 05:58:05 jdolecek Exp $ */
initial import of the new virtual memory system, UVM, into -current. UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some minor portions derived from the old Mach code. i provided some help getting swap and paging working, and other bug fixes/ideas. chuck silvers <chuq@chuq.com> also provided some other fixes. this is the UVM kernel code portion. this will be KNF'd shortly. :-)
1998-02-05 09:25:08 +03:00
/*
*
* 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.
restore rcsids
1998-02-07 14:07:38 +03:00
*
* from: Id: uvm_loan.h,v 1.1.4.1 1997/12/08 16:07:14 chuck Exp
initial import of the new virtual memory system, UVM, into -current. UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some minor portions derived from the old Mach code. i provided some help getting swap and paging working, and other bug fixes/ideas. chuck silvers <chuq@chuq.com> also provided some other fixes. this is the UVM kernel code portion. this will be KNF'd shortly. :-)
1998-02-05 09:25:08 +03:00
*/
add/cleanup multiple inclusion protection.
1998-02-10 05:34:17 +03:00
#ifndef _UVM_UVM_LOAN_H_
#define _UVM_UVM_LOAN_H_
Protect prototypes, certain macros, and inlines from userland.
1999-06-21 21:25:11 +04:00
#ifdef _KERNEL
initial import of the new virtual memory system, UVM, into -current. UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some minor portions derived from the old Mach code. i provided some help getting swap and paging working, and other bug fixes/ideas. chuck silvers <chuq@chuq.com> also provided some other fixes. this is the UVM kernel code portion. this will be KNF'd shortly. :-)
1998-02-05 09:25:08 +03:00
/*
* flags for uvm_loan
*/
#define UVM_LOAN_TOANON 0x1 /* loan to anon */
#define UVM_LOAN_TOPAGE 0x2 /* loan to page */
add new UVM_LOAN_WIRED flag - the memory pages loaned in TOPAGE case are only wired if this flag is present (i.e. they are not wired by default now) loaned pages are unloaned via new uvm_unloan(), uvm_unloananon() and uvm_unloanpage() are no longer exported adjust uvm_unloanpage() to unwire the pages if UVM_LOAN_WIRED is specified mark uvm_loanuobj() and uvm_loanzero() static also in function implementation kern/sys_pipe.c: uvm_unloanpage() --> uvm_unloan()
2001-09-22 09:58:04 +04:00
#define UVM_LOAN_WIRED 0x4 /* wire the page loan */
initial import of the new virtual memory system, UVM, into -current. UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some minor portions derived from the old Mach code. i provided some help getting swap and paging working, and other bug fixes/ideas. chuck silvers <chuq@chuq.com> also provided some other fixes. this is the UVM kernel code portion. this will be KNF'd shortly. :-)
1998-02-05 09:25:08 +03:00
/*
* loan prototypes
*/
Merge paddr_t changes into the main branch.
1998-08-13 06:10:37 +04:00
int uvm_loan __P((struct vm_map *, vaddr_t, vsize_t, void **, int));
add new UVM_LOAN_WIRED flag - the memory pages loaned in TOPAGE case are only wired if this flag is present (i.e. they are not wired by default now) loaned pages are unloaned via new uvm_unloan(), uvm_unloananon() and uvm_unloanpage() are no longer exported adjust uvm_unloanpage() to unwire the pages if UVM_LOAN_WIRED is specified mark uvm_loanuobj() and uvm_loanzero() static also in function implementation kern/sys_pipe.c: uvm_unloanpage() --> uvm_unloan()
2001-09-22 09:58:04 +04:00
void uvm_unloan __P((void **, int, int));
add/cleanup multiple inclusion protection.
1998-02-10 05:34:17 +03:00
Protect prototypes, certain macros, and inlines from userland.
1999-06-21 21:25:11 +04:00
#endif /* _KERNEL */
add/cleanup multiple inclusion protection.
1998-02-10 05:34:17 +03:00
#endif /* _UVM_UVM_LOAN_H_ */
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