/* $OpenBSD: uvm_pmap.h,v 1.37 2025/06/02 18:49:04 claudio Exp $ */ /* $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. 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 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 */ #define PMAP_MD0 0x00000040 /* Machine dependant */ #define PMAP_MD1 0x00000080 /* Machine dependant */ #define PMAP_MD2 0x00000100 /* Machine dependant */ #define PMAP_MD3 0x00000200 /* Machine dependant */ #ifndef PMAP_WC #define PMAP_WC 0 #endif #ifndef PMAP_PREFER #define PMAP_PREFER_ALIGN() 0 #define PMAP_PREFER_OFFSET(off) 0 #endif #ifdef _KERNEL __BEGIN_DECLS #ifndef pmap_activate void pmap_activate(struct proc *); #endif #ifndef pmap_deactivate void pmap_deactivate(struct proc *); #endif #ifndef pmap_unwire void pmap_unwire(pmap_t, vaddr_t); #endif #if !defined(pmap_clear_modify) boolean_t pmap_clear_modify(struct vm_page *); #endif #if !defined(pmap_clear_reference) boolean_t pmap_clear_reference(struct vm_page *); #endif #if !defined(pmap_copy_page) void pmap_copy_page(struct vm_page *, struct vm_page *); #endif struct pmap *pmap_create(void); void pmap_destroy(pmap_t); int pmap_enter(pmap_t, vaddr_t, paddr_t, vm_prot_t, int); boolean_t 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) boolean_t pmap_is_modified(struct vm_page *); #endif #if !defined(pmap_is_referenced) boolean_t pmap_is_referenced(struct vm_page *); #endif void pmap_page_protect(struct vm_page *, vm_prot_t); #if !defined(pmap_proc_iflush) void pmap_proc_iflush(struct process *, vaddr_t, vsize_t); #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 #if !defined(pmap_remove_holes) void pmap_remove_holes(struct vmspace *); #endif #if !defined(pmap_update) void pmap_update(pmap_t); #endif #if !defined(pmap_zero_page) void pmap_zero_page(struct vm_page *); #endif #if defined(PMAP_STEAL_MEMORY) vaddr_t pmap_steal_memory(vsize_t, vaddr_t *, vaddr_t *); #else void pmap_virtual_space(vaddr_t *, vaddr_t *); #endif #if defined(__HAVE_PMAP_POPULATE) void pmap_populate(pmap_t, vaddr_t); #endif #if defined(__HAVE_PMAP_PURGE) void pmap_purge(struct proc *); #endif /* nested pmaps are used in i386/amd64 vmm */ #ifndef pmap_nested #define pmap_nested(pm) 0 #endif __END_DECLS #endif /* kernel*/ #endif /* _PMAP_VM_ */
