182 lines
5.8 KiB
C
182 lines
5.8 KiB
C
/* $NetBSD: uvm_pmap.h,v 1.20 2007/02/21 23:00:15 thorpej Exp $ */
|
|
|
|
/*
|
|
* 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. 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.
|
|
*
|
|
* @(#)pmap.h 8.1 (Berkeley) 6/11/93
|
|
*
|
|
*
|
|
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Avadis Tevanian, Jr.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Machine address mapping definitions -- machine-independent
|
|
* section. [For machine-dependent section, see "machine/pmap.h".]
|
|
*/
|
|
|
|
#ifndef _PMAP_VM_
|
|
#define _PMAP_VM_
|
|
|
|
struct lwp; /* for pmap_activate()/pmap_deactivate() proto */
|
|
|
|
/*
|
|
* Each machine dependent implementation is expected to
|
|
* keep certain statistics. They may do this anyway they
|
|
* so choose, but are expected to return the statistics
|
|
* in the following structure.
|
|
*/
|
|
struct pmap_statistics {
|
|
long resident_count; /* # of pages mapped (total)*/
|
|
long wired_count; /* # of pages wired */
|
|
};
|
|
typedef struct pmap_statistics *pmap_statistics_t;
|
|
|
|
#ifdef _KERNEL
|
|
#include <machine/pmap.h>
|
|
#endif
|
|
|
|
/*
|
|
* Flags passed to pmap_enter(). Note the bottom 3 bits are VM_PROT_*
|
|
* bits, used to indicate the access type that was made (to seed modified
|
|
* and referenced information).
|
|
*/
|
|
#define PMAP_WIRED 0x00000010 /* wired mapping */
|
|
#define PMAP_CANFAIL 0x00000020 /* can fail if resource shortage */
|
|
|
|
#ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
|
|
#ifdef _KERNEL
|
|
__BEGIN_DECLS
|
|
#if !defined(pmap_kernel)
|
|
struct pmap *pmap_kernel(void);
|
|
#endif
|
|
|
|
void pmap_activate(struct lwp *);
|
|
void pmap_deactivate(struct lwp *);
|
|
void pmap_unwire(pmap_t, vaddr_t);
|
|
|
|
#if !defined(pmap_clear_modify)
|
|
bool pmap_clear_modify(struct vm_page *);
|
|
#endif
|
|
#if !defined(pmap_clear_reference)
|
|
bool pmap_clear_reference(struct vm_page *);
|
|
#endif
|
|
|
|
#if !defined(pmap_collect)
|
|
void pmap_collect(pmap_t);
|
|
#endif
|
|
#if !defined(pmap_copy)
|
|
void pmap_copy(pmap_t, pmap_t, vaddr_t, vsize_t, vaddr_t);
|
|
#endif
|
|
#if !defined(pmap_copy_page)
|
|
void pmap_copy_page(paddr_t, paddr_t);
|
|
#endif
|
|
struct pmap *pmap_create(void);
|
|
void pmap_destroy(pmap_t);
|
|
int pmap_enter(pmap_t, vaddr_t, paddr_t, vm_prot_t, int);
|
|
bool pmap_extract(pmap_t, vaddr_t, paddr_t *);
|
|
#if defined(PMAP_GROWKERNEL)
|
|
vaddr_t pmap_growkernel(vaddr_t);
|
|
#endif
|
|
|
|
void pmap_init(void);
|
|
|
|
void pmap_kenter_pa(vaddr_t, paddr_t, vm_prot_t);
|
|
void pmap_kremove(vaddr_t, vsize_t);
|
|
#if !defined(pmap_is_modified)
|
|
bool pmap_is_modified(struct vm_page *);
|
|
#endif
|
|
#if !defined(pmap_is_referenced)
|
|
bool pmap_is_referenced(struct vm_page *);
|
|
#endif
|
|
|
|
void pmap_page_protect(struct vm_page *, vm_prot_t);
|
|
|
|
#if !defined(pmap_phys_address)
|
|
paddr_t pmap_phys_address(int);
|
|
#endif
|
|
void pmap_protect(pmap_t, vaddr_t, vaddr_t, vm_prot_t);
|
|
#if !defined(pmap_reference)
|
|
void pmap_reference(pmap_t);
|
|
#endif
|
|
#if !defined(pmap_remove)
|
|
void pmap_remove(pmap_t, vaddr_t, vaddr_t);
|
|
#endif
|
|
void pmap_remove_all(struct pmap *);
|
|
#if !defined(pmap_update)
|
|
void pmap_update(pmap_t);
|
|
#endif
|
|
#if !defined(pmap_resident_count)
|
|
long pmap_resident_count(pmap_t);
|
|
#endif
|
|
#if !defined(pmap_wired_count)
|
|
long pmap_wired_count(pmap_t);
|
|
#endif
|
|
#if !defined(pmap_zero_page)
|
|
void pmap_zero_page(paddr_t);
|
|
#endif
|
|
|
|
void pmap_virtual_space(vaddr_t *, vaddr_t *);
|
|
#if defined(PMAP_STEAL_MEMORY)
|
|
vaddr_t pmap_steal_memory(vsize_t, vaddr_t *, vaddr_t *);
|
|
#endif
|
|
|
|
#if defined(PMAP_FORK)
|
|
void pmap_fork(pmap_t, pmap_t);
|
|
#endif
|
|
__END_DECLS
|
|
#endif /* kernel*/
|
|
#endif /* PMAP_EXCLUDE_DECLS */
|
|
|
|
#endif /* _PMAP_VM_ */
|