pmap.h revision 84844
1/* 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * the Systems Programming Group of the University of Utah Computer 7 * Science Department and William Jolitz of UUNET Technologies Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 38 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 39 * from: FreeBSD: src/sys/i386/include/pmap.h,v 1.70 2000/11/30 40 * $FreeBSD: head/sys/sparc64/include/pmap.h 84844 2001-10-12 15:49:51Z tmm $ 41 */ 42 43#ifndef _MACHINE_PMAP_H_ 44#define _MACHINE_PMAP_H_ 45 46#include <machine/tte.h> 47 48#define PMAP_CONTEXT_MAX 8192 49 50#define pmap_resident_count(pm) (pm->pm_stats.resident_count) 51 52typedef struct pmap *pmap_t; 53 54struct md_page { 55}; 56 57struct pmap { 58 struct stte pm_stte; 59 vm_object_t pm_object; 60 u_int pm_active; 61 u_int pm_context; 62 u_int pm_count; 63 u_int pm_pages; 64 struct pmap_statistics pm_stats; 65}; 66 67void pmap_bootstrap(vm_offset_t skpa, vm_offset_t ekva); 68vm_offset_t pmap_kextract(vm_offset_t va); 69void pmap_kenter_flags(vm_offset_t va, vm_offset_t pa, u_long flags); 70 71#define vtophys(va) pmap_kextract(((vm_offset_t) (va))) 72 73extern vm_offset_t avail_start; 74extern vm_offset_t avail_end; 75extern struct pmap *kernel_pmap; 76extern vm_offset_t phys_avail[]; 77extern vm_offset_t virtual_avail; 78extern vm_offset_t virtual_end; 79 80static __inline int 81pmap_track_modified(vm_offset_t va) 82{ 83 return ((va < kmi.clean_sva) || (va >= kmi.clean_eva)); 84} 85 86#endif /* !_MACHINE_PMAP_H_ */ 87