200 lines
6.8 KiB
C
200 lines
6.8 KiB
C
/* $NetBSD: pmap.h,v 1.33 1999/06/17 19:23:20 thorpej Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* The Mach Operating System project at Carnegie-Mellon University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)pmap.h 8.1 (Berkeley) 6/11/93
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*
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*
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* Copyright (c) 1987, 1990 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Avadis Tevanian, Jr.
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Machine address mapping definitions -- machine-independent
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* section. [For machine-dependent section, see "machine/pmap.h".]
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*/
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#ifndef _PMAP_VM_
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#define _PMAP_VM_
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#if defined(_KERNEL) && !defined(_LKM)
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#include "opt_pmap_new.h"
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#endif
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struct proc; /* for pmap_activate()/pmap_deactivate() proto */
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/*
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* Each machine dependent implementation is expected to
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* keep certain statistics. They may do this anyway they
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* so choose, but are expected to return the statistics
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* in the following structure.
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*/
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struct pmap_statistics {
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long resident_count; /* # of pages mapped (total)*/
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long wired_count; /* # of pages wired */
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};
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typedef struct pmap_statistics *pmap_statistics_t;
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#include <machine/pmap.h>
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/*
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* PMAP_PGARG hack
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*
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* operations that take place on managed pages used to take PAs.
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* this caused us to translate the PA back to a page (or pv_head).
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* PMAP_NEW avoids this by passing the vm_page in (pv_head should be
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* pointed to by vm_page (or be a part of it)).
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*
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* applies to: pmap_page_protect, pmap_is_referenced, pmap_is_modified,
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* pmap_clear_reference, pmap_clear_modify.
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*
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* the latter two functions are boolean_t in PMAP_NEW. they return
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* TRUE if something was cleared.
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*/
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#if defined(PMAP_NEW)
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#define PMAP_PGARG(PG) (PG)
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#else
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#define PMAP_PGARG(PG) (VM_PAGE_TO_PHYS(PG))
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#endif
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#ifndef PMAP_EXCLUDE_DECLS /* Used in Sparc port to virtualize pmap mod */
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#ifdef _KERNEL
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__BEGIN_DECLS
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void *pmap_bootstrap_alloc __P((int));
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void pmap_activate __P((struct proc *));
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void pmap_deactivate __P((struct proc *));
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void pmap_unwire __P((pmap_t, vaddr_t));
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#if defined(PMAP_NEW)
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#if !defined(pmap_clear_modify)
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boolean_t pmap_clear_modify __P((struct vm_page *));
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#endif
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#if !defined(pmap_clear_reference)
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boolean_t pmap_clear_reference __P((struct vm_page *));
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#endif
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#else /* PMAP_NEW */
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void pmap_clear_modify __P((paddr_t pa));
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void pmap_clear_reference __P((paddr_t pa));
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#endif /* PMAP_NEW */
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void pmap_collect __P((pmap_t));
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void pmap_copy __P((pmap_t,
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pmap_t, vaddr_t, vsize_t, vaddr_t));
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void pmap_copy_page __P((paddr_t, paddr_t));
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#if defined(PMAP_NEW)
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struct pmap *pmap_create __P((void));
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#else
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pmap_t pmap_create __P((vsize_t));
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#endif
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void pmap_destroy __P((pmap_t));
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void pmap_enter __P((pmap_t,
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vaddr_t, paddr_t, vm_prot_t, boolean_t, vm_prot_t));
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paddr_t pmap_extract __P((pmap_t, vaddr_t));
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#if defined(PMAP_NEW) && defined(PMAP_GROWKERNEL)
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vaddr_t pmap_growkernel __P((vaddr_t));
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#endif
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void pmap_init __P((void));
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#if defined(PMAP_NEW)
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void pmap_kenter_pa __P((vaddr_t, paddr_t, vm_prot_t));
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void pmap_kenter_pgs __P((vaddr_t, struct vm_page **, int));
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void pmap_kremove __P((vaddr_t, vsize_t));
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#if !defined(pmap_is_modified)
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boolean_t pmap_is_modified __P((struct vm_page *));
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#endif
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#if !defined(pmap_is_referenced)
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boolean_t pmap_is_referenced __P((struct vm_page *));
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#endif
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#else /* PMAP_NEW */
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boolean_t pmap_is_modified __P((paddr_t pa));
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boolean_t pmap_is_referenced __P((paddr_t pa));
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#endif /* PMAP_NEW */
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#if defined(PMAP_NEW)
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void pmap_page_protect __P((struct vm_page *, vm_prot_t));
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#else
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void pmap_page_protect __P((paddr_t, vm_prot_t));
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#endif
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#if !defined(pmap_phys_address)
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paddr_t pmap_phys_address __P((int));
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#endif
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void pmap_protect __P((pmap_t,
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vaddr_t, vaddr_t, vm_prot_t));
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void pmap_reference __P((pmap_t));
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void pmap_remove __P((pmap_t, vaddr_t, vaddr_t));
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void pmap_update __P((void));
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void pmap_zero_page __P((paddr_t));
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#if defined(PMAP_STEAL_MEMORY)
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vaddr_t pmap_steal_memory __P((vsize_t, paddr_t *,
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paddr_t *));
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#else
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void pmap_virtual_space __P((vaddr_t *, vaddr_t *));
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#endif
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#if defined(PMAP_FORK)
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void pmap_fork __P((pmap_t, pmap_t));
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#endif
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__END_DECLS
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#endif /* kernel*/
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#endif /* PMAP_EXCLUDE_DECLS */
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#endif /* _PMAP_VM_ */
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