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Diffstat (limited to 'sys/uvm/uvm_pmap.h')
| -rw-r--r-- | sys/uvm/uvm_pmap.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/sys/uvm/uvm_pmap.h b/sys/uvm/uvm_pmap.h new file mode 100644 index 00000000000..325ed9e19d3 --- /dev/null +++ b/sys/uvm/uvm_pmap.h @@ -0,0 +1,164 @@ +/* $NetBSD: uvm_pmap.h,v 1.1 2000/06/27 09:00:14 mrg 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_ + +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> + +/* + * 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 +void *pmap_bootstrap_alloc __P((int)); +void pmap_activate __P((struct proc *)); +void pmap_deactivate __P((struct proc *)); +void pmap_unwire __P((pmap_t, vaddr_t)); + +#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 + +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)); +struct pmap *pmap_create __P((void)); +void pmap_destroy __P((pmap_t)); +int pmap_enter __P((pmap_t, + vaddr_t, paddr_t, vm_prot_t, int)); +boolean_t pmap_extract __P((pmap_t, vaddr_t, paddr_t *)); +#if defined(PMAP_GROWKERNEL) +vaddr_t pmap_growkernel __P((vaddr_t)); +#endif + +void pmap_init __P((void)); + +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 + +void pmap_page_protect __P((struct vm_page *, vm_prot_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, vaddr_t *, vaddr_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_ */ |