160727d8bSWarner Losh /*- 2df8bae1dSRodney W. Grimes * Copyright (c) 1991, 1993 3df8bae1dSRodney W. Grimes * The Regents of the University of California. All rights reserved. 4df8bae1dSRodney W. Grimes * 5df8bae1dSRodney W. Grimes * This code is derived from software contributed to Berkeley by 6df8bae1dSRodney W. Grimes * The Mach Operating System project at Carnegie-Mellon University. 7df8bae1dSRodney W. Grimes * 8df8bae1dSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 9df8bae1dSRodney W. Grimes * modification, are permitted provided that the following conditions 10df8bae1dSRodney W. Grimes * are met: 11df8bae1dSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 12df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 13df8bae1dSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 14df8bae1dSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 15df8bae1dSRodney W. Grimes * documentation and/or other materials provided with the distribution. 16df8bae1dSRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 17df8bae1dSRodney W. Grimes * may be used to endorse or promote products derived from this software 18df8bae1dSRodney W. Grimes * without specific prior written permission. 19df8bae1dSRodney W. Grimes * 20df8bae1dSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21df8bae1dSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22df8bae1dSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23df8bae1dSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24df8bae1dSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25df8bae1dSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26df8bae1dSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27df8bae1dSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28df8bae1dSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29df8bae1dSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30df8bae1dSRodney W. Grimes * SUCH DAMAGE. 31df8bae1dSRodney W. Grimes * 323c4dd356SDavid Greenman * from: @(#)pmap.h 8.1 (Berkeley) 6/11/93 33df8bae1dSRodney W. Grimes * 34df8bae1dSRodney W. Grimes * 35df8bae1dSRodney W. Grimes * Copyright (c) 1987, 1990 Carnegie-Mellon University. 36df8bae1dSRodney W. Grimes * All rights reserved. 37df8bae1dSRodney W. Grimes * 38df8bae1dSRodney W. Grimes * Author: Avadis Tevanian, Jr. 39df8bae1dSRodney W. Grimes * 40df8bae1dSRodney W. Grimes * Permission to use, copy, modify and distribute this software and 41df8bae1dSRodney W. Grimes * its documentation is hereby granted, provided that both the copyright 42df8bae1dSRodney W. Grimes * notice and this permission notice appear in all copies of the 43df8bae1dSRodney W. Grimes * software, derivative works or modified versions, and any portions 44df8bae1dSRodney W. Grimes * thereof, and that both notices appear in supporting documentation. 45df8bae1dSRodney W. Grimes * 46df8bae1dSRodney W. Grimes * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 47df8bae1dSRodney W. Grimes * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 48df8bae1dSRodney W. Grimes * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 49df8bae1dSRodney W. Grimes * 50df8bae1dSRodney W. Grimes * Carnegie Mellon requests users of this software to return to 51df8bae1dSRodney W. Grimes * 52df8bae1dSRodney W. Grimes * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 53df8bae1dSRodney W. Grimes * School of Computer Science 54df8bae1dSRodney W. Grimes * Carnegie Mellon University 55df8bae1dSRodney W. Grimes * Pittsburgh PA 15213-3890 56df8bae1dSRodney W. Grimes * 57df8bae1dSRodney W. Grimes * any improvements or extensions that they make and grant Carnegie the 58df8bae1dSRodney W. Grimes * rights to redistribute these changes. 593c4dd356SDavid Greenman * 60c3aac50fSPeter Wemm * $FreeBSD$ 61df8bae1dSRodney W. Grimes */ 62df8bae1dSRodney W. Grimes 63df8bae1dSRodney W. Grimes /* 64df8bae1dSRodney W. Grimes * Machine address mapping definitions -- machine-independent 65df8bae1dSRodney W. Grimes * section. [For machine-dependent section, see "machine/pmap.h".] 66df8bae1dSRodney W. Grimes */ 67df8bae1dSRodney W. Grimes 68df8bae1dSRodney W. Grimes #ifndef _PMAP_VM_ 69df8bae1dSRodney W. Grimes #define _PMAP_VM_ 70df8bae1dSRodney W. Grimes /* 71df8bae1dSRodney W. Grimes * Each machine dependent implementation is expected to 72df8bae1dSRodney W. Grimes * keep certain statistics. They may do this anyway they 73df8bae1dSRodney W. Grimes * so choose, but are expected to return the statistics 74df8bae1dSRodney W. Grimes * in the following structure. 75df8bae1dSRodney W. Grimes */ 76df8bae1dSRodney W. Grimes struct pmap_statistics { 77df8bae1dSRodney W. Grimes long resident_count; /* # of pages mapped (total) */ 78df8bae1dSRodney W. Grimes long wired_count; /* # of pages wired */ 79df8bae1dSRodney W. Grimes }; 80df8bae1dSRodney W. Grimes typedef struct pmap_statistics *pmap_statistics_t; 81df8bae1dSRodney W. Grimes 823153e878SAlan Cox /* 836031c68dSAlan Cox * Each machine-dependent implementation is required to provide: 843153e878SAlan Cox * 853153e878SAlan Cox * vm_memattr_t pmap_page_get_memattr(vm_page_t); 863153e878SAlan Cox * boolean_t pmap_page_is_mapped(vm_page_t); 876031c68dSAlan Cox * boolean_t pmap_page_is_write_mapped(vm_page_t); 883153e878SAlan Cox * void pmap_page_set_memattr(vm_page_t, vm_memattr_t); 893153e878SAlan Cox */ 90df8bae1dSRodney W. Grimes #include <machine/pmap.h> 91df8bae1dSRodney W. Grimes 92c4473420SPeter Wemm #ifdef _KERNEL 93b40ce416SJulian Elischer struct thread; 948bcc577eSBruce Evans 9553b19636SAlan Cox /* 9653b19636SAlan Cox * Updates to kernel_vm_end are synchronized by the kernel_map's system mutex. 9753b19636SAlan Cox */ 9853b19636SAlan Cox extern vm_offset_t kernel_vm_end; 9953b19636SAlan Cox 1009454f828SAlan Cox void pmap_activate(struct thread *td); 10151321f7cSAlan Cox void pmap_advise(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, 10251321f7cSAlan Cox int advice); 103d3249b14SAlan Cox void pmap_align_superpage(vm_object_t, vm_ooffset_t, vm_offset_t *, 104d3249b14SAlan Cox vm_size_t); 10511caded3SAlfred Perlstein void pmap_change_wiring(pmap_t, vm_offset_t, boolean_t); 10611caded3SAlfred Perlstein void pmap_clear_modify(vm_page_t m); 10711caded3SAlfred Perlstein void pmap_copy(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t); 1081a87a0daSPeter Wemm void pmap_copy_page(vm_page_t, vm_page_t); 109e8a4a618SKonstantin Belousov void pmap_copy_pages(vm_page_t ma[], vm_offset_t a_offset, 110e8a4a618SKonstantin Belousov vm_page_t mb[], vm_offset_t b_offset, int xfersize); 111eb2a0517SAlan Cox void pmap_enter(pmap_t, vm_offset_t, vm_prot_t, vm_page_t, 112eb2a0517SAlan Cox vm_prot_t, boolean_t); 113ce142d9eSAlan Cox void pmap_enter_object(pmap_t pmap, vm_offset_t start, 114ce142d9eSAlan Cox vm_offset_t end, vm_page_t m_start, vm_prot_t prot); 1159454f828SAlan Cox void pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, 1169454f828SAlan Cox vm_prot_t prot); 117227f9a1cSJake Burkholder vm_paddr_t pmap_extract(pmap_t pmap, vm_offset_t va); 118b9850eb2SAlan Cox vm_page_t pmap_extract_and_hold(pmap_t pmap, vm_offset_t va, 119b9850eb2SAlan Cox vm_prot_t prot); 12011caded3SAlfred Perlstein void pmap_growkernel(vm_offset_t); 121bdb93eb2SAlan Cox void pmap_init(void); 12211caded3SAlfred Perlstein boolean_t pmap_is_modified(vm_page_t m); 123566526a9SAlan Cox boolean_t pmap_is_prefaultable(pmap_t pmap, vm_offset_t va); 1247b85f591SAlan Cox boolean_t pmap_is_referenced(vm_page_t m); 125227f9a1cSJake Burkholder vm_offset_t pmap_map(vm_offset_t *, vm_paddr_t, vm_paddr_t, int); 126567e51e1SAlan Cox int pmap_mincore(pmap_t pmap, vm_offset_t addr, 127567e51e1SAlan Cox vm_paddr_t *locked_pa); 12811caded3SAlfred Perlstein void pmap_object_init_pt(pmap_t pmap, vm_offset_t addr, 1291f78f902SAlan Cox vm_object_t object, vm_pindex_t pindex, vm_size_t size); 13011caded3SAlfred Perlstein boolean_t pmap_page_exists_quick(pmap_t pmap, vm_page_t m); 1311c245ae7SAlan Cox void pmap_page_init(vm_page_t m); 13259677d3cSAlan Cox int pmap_page_wired_mappings(vm_page_t m); 13389b57fcfSKonstantin Belousov int pmap_pinit(pmap_t); 13411caded3SAlfred Perlstein void pmap_pinit0(pmap_t); 13511caded3SAlfred Perlstein void pmap_protect(pmap_t, vm_offset_t, vm_offset_t, vm_prot_t); 13611caded3SAlfred Perlstein void pmap_qenter(vm_offset_t, vm_page_t *, int); 13711caded3SAlfred Perlstein void pmap_qremove(vm_offset_t, int); 13811caded3SAlfred Perlstein void pmap_release(pmap_t); 13911caded3SAlfred Perlstein void pmap_remove(pmap_t, vm_offset_t, vm_offset_t); 1406372d61eSAlan Cox void pmap_remove_all(vm_page_t m); 141b9eee07eSPeter Wemm void pmap_remove_pages(pmap_t); 14278985e42SAlan Cox void pmap_remove_write(vm_page_t m); 1431a4fcaebSMarcel Moolenaar void pmap_sync_icache(pmap_t, vm_offset_t, vm_size_t); 1449454f828SAlan Cox boolean_t pmap_ts_referenced(vm_page_t m); 145*09132ba6SAlan Cox void pmap_unwire(pmap_t pmap, vm_offset_t start, vm_offset_t end); 1461a87a0daSPeter Wemm void pmap_zero_page(vm_page_t); 1471a87a0daSPeter Wemm void pmap_zero_page_area(vm_page_t, int off, int size); 148a58b3a68SPeter Wemm void pmap_zero_page_idle(vm_page_t); 1492bc7dd56SBruce M Simpson 1502bc7dd56SBruce M Simpson #define pmap_resident_count(pm) ((pm)->pm_stats.resident_count) 1512bc7dd56SBruce M Simpson #define pmap_wired_count(pm) ((pm)->pm_stats.wired_count) 1522bc7dd56SBruce M Simpson 153c4473420SPeter Wemm #endif /* _KERNEL */ 154df8bae1dSRodney W. Grimes #endif /* _PMAP_VM_ */ 155