96993ef749
end of the mappable kernel virtual address space. Previously, it would get called more often than necessary, because the caller only new what was requested. Also, export uvm_maxkaddr so that uvm_pageboot_alloc() can grow the kernel pmap if necessary, as well. Note that pmap_growkernel() must now be able to handle being called before pmap_init().
202 lines
6.9 KiB
C
202 lines
6.9 KiB
C
/* $NetBSD: pmap.h,v 1.31 1999/05/20 23:25:42 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by 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.
|
|
*
|
|
* @(#)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_
|
|
|
|
#if defined(_KERNEL) && !defined(_LKM)
|
|
#include "opt_pmap_new.h"
|
|
#endif
|
|
|
|
struct proc; /* 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;
|
|
|
|
#include <machine/pmap.h>
|
|
|
|
/*
|
|
* PMAP_PGARG hack
|
|
*
|
|
* operations that take place on managed pages used to take PAs.
|
|
* this caused us to translate the PA back to a page (or pv_head).
|
|
* PMAP_NEW avoids this by passing the vm_page in (pv_head should be
|
|
* pointed to by vm_page (or be a part of it)).
|
|
*
|
|
* applies to: pmap_page_protect, pmap_is_referenced, pmap_is_modified,
|
|
* pmap_clear_reference, pmap_clear_modify.
|
|
*
|
|
* the latter two functions are boolean_t in PMAP_NEW. they return
|
|
* TRUE if something was cleared.
|
|
*/
|
|
#if defined(PMAP_NEW)
|
|
#define PMAP_PGARG(PG) (PG)
|
|
#else
|
|
#define PMAP_PGARG(PG) (VM_PAGE_TO_PHYS(PG))
|
|
#endif
|
|
|
|
#ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
|
|
#ifdef _KERNEL
|
|
__BEGIN_DECLS
|
|
void *pmap_bootstrap_alloc __P((int));
|
|
void pmap_activate __P((struct proc *));
|
|
void pmap_deactivate __P((struct proc *));
|
|
void pmap_change_wiring __P((pmap_t, vaddr_t, boolean_t));
|
|
|
|
#if defined(PMAP_NEW)
|
|
#if !defined(pmap_clear_modify)
|
|
boolean_t pmap_clear_modify __P((struct vm_page *));
|
|
#endif
|
|
#if !defined(pmap_clear_reference)
|
|
boolean_t pmap_clear_reference __P((struct vm_page *));
|
|
#endif
|
|
#else /* PMAP_NEW */
|
|
void pmap_clear_modify __P((paddr_t pa));
|
|
void pmap_clear_reference __P((paddr_t pa));
|
|
#endif /* PMAP_NEW */
|
|
|
|
void pmap_collect __P((pmap_t));
|
|
void pmap_copy __P((pmap_t,
|
|
pmap_t, vaddr_t, vsize_t, vaddr_t));
|
|
void pmap_copy_page __P((paddr_t, paddr_t));
|
|
#if defined(PMAP_NEW)
|
|
struct pmap *pmap_create __P((void));
|
|
#else
|
|
pmap_t pmap_create __P((vsize_t));
|
|
#endif
|
|
void pmap_destroy __P((pmap_t));
|
|
void pmap_enter __P((pmap_t,
|
|
vaddr_t, paddr_t, vm_prot_t, boolean_t, vm_prot_t));
|
|
paddr_t pmap_extract __P((pmap_t, vaddr_t));
|
|
#if defined(PMAP_NEW) && defined(PMAP_GROWKERNEL)
|
|
vaddr_t pmap_growkernel __P((vaddr_t));
|
|
#endif
|
|
|
|
void pmap_init __P((void));
|
|
|
|
#if defined(PMAP_NEW)
|
|
void pmap_kenter_pa __P((vaddr_t, paddr_t, vm_prot_t));
|
|
void pmap_kenter_pgs __P((vaddr_t, struct vm_page **, int));
|
|
void pmap_kremove __P((vaddr_t, vsize_t));
|
|
#if !defined(pmap_is_modified)
|
|
boolean_t pmap_is_modified __P((struct vm_page *));
|
|
#endif
|
|
#if !defined(pmap_is_referenced)
|
|
boolean_t pmap_is_referenced __P((struct vm_page *));
|
|
#endif
|
|
#else /* PMAP_NEW */
|
|
boolean_t pmap_is_modified __P((paddr_t pa));
|
|
boolean_t pmap_is_referenced __P((paddr_t pa));
|
|
#endif /* PMAP_NEW */
|
|
|
|
#if defined(PMAP_NEW)
|
|
void pmap_page_protect __P((struct vm_page *, vm_prot_t));
|
|
#else
|
|
void pmap_page_protect __P((paddr_t, vm_prot_t));
|
|
#endif
|
|
|
|
void pmap_pageable __P((pmap_t,
|
|
vaddr_t, vaddr_t, boolean_t));
|
|
#if !defined(pmap_phys_address)
|
|
paddr_t pmap_phys_address __P((int));
|
|
#endif
|
|
void pmap_protect __P((pmap_t,
|
|
vaddr_t, vaddr_t, vm_prot_t));
|
|
void pmap_reference __P((pmap_t));
|
|
void pmap_remove __P((pmap_t, vaddr_t, vaddr_t));
|
|
void pmap_update __P((void));
|
|
void pmap_zero_page __P((paddr_t));
|
|
|
|
#if defined(PMAP_STEAL_MEMORY)
|
|
vaddr_t pmap_steal_memory __P((vsize_t, paddr_t *,
|
|
paddr_t *));
|
|
#else
|
|
void pmap_virtual_space __P((vaddr_t *, vaddr_t *));
|
|
#endif
|
|
|
|
#if defined(PMAP_FORK)
|
|
void pmap_fork __P((pmap_t, pmap_t));
|
|
#endif
|
|
__END_DECLS
|
|
#endif /* kernel*/
|
|
#endif /* PMAP_EXCLUDE_DECLS */
|
|
|
|
#endif /* _PMAP_VM_ */
|