| pmap.h (153179) | pmap.h (156699) |
|---|---|
| 1/*- 2 * Copyright (c) 2003 Peter Wemm. 3 * Copyright (c) 1991 Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department and William Jolitz of UUNET Technologies Inc. --- 25 unchanged lines hidden (view full) --- 34 * Derived from hp300 version by Mike Hibler, this version by William 35 * Jolitz uses a recursive map [a pde points to the page directory] to 36 * map the page tables using the pagetables themselves. This is done to 37 * reduce the impact on kernel virtual memory for lots of sparse address 38 * space, and to reduce the cost of memory to each process. 39 * 40 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 41 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 | 1/*- 2 * Copyright (c) 2003 Peter Wemm. 3 * Copyright (c) 1991 Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department and William Jolitz of UUNET Technologies Inc. --- 25 unchanged lines hidden (view full) --- 34 * Derived from hp300 version by Mike Hibler, this version by William 35 * Jolitz uses a recursive map [a pde points to the page directory] to 36 * map the page tables using the pagetables themselves. This is done to 37 * reduce the impact on kernel virtual memory for lots of sparse address 38 * space, and to reduce the cost of memory to each process. 39 * 40 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90 41 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91 |
| 42 * $FreeBSD: head/sys/amd64/include/pmap.h 153179 2005-12-06 21:09:01Z jhb $ | 42 * $FreeBSD: head/sys/amd64/include/pmap.h 156699 2006-03-14 00:01:56Z peter $ |
| 43 */ 44 45#ifndef _MACHINE_PMAP_H_ 46#define _MACHINE_PMAP_H_ 47 48/* 49 * Page-directory and page-table entries follow this format, with a few 50 * of the fields not present here and there, depending on a lot of things. --- 120 unchanged lines hidden (view full) --- 171#ifdef _KERNEL 172/* 173 * virtual address to page table entry and 174 * to physical address. 175 * Note: these work recursively, thus vtopte of a pte will give 176 * the corresponding pde that in turn maps it. 177 */ 178pt_entry_t *vtopte(vm_offset_t); | 43 */ 44 45#ifndef _MACHINE_PMAP_H_ 46#define _MACHINE_PMAP_H_ 47 48/* 49 * Page-directory and page-table entries follow this format, with a few 50 * of the fields not present here and there, depending on a lot of things. --- 120 unchanged lines hidden (view full) --- 171#ifdef _KERNEL 172/* 173 * virtual address to page table entry and 174 * to physical address. 175 * Note: these work recursively, thus vtopte of a pte will give 176 * the corresponding pde that in turn maps it. 177 */ 178pt_entry_t *vtopte(vm_offset_t); |
| 179#define vtophys(va) pmap_kextract((vm_offset_t)(va)) | 179#define vtophys(va) pmap_kextract(((vm_offset_t) (va))) |
| 180 181static __inline pt_entry_t 182pte_load(pt_entry_t *ptep) 183{ 184 pt_entry_t r; 185 186 r = *ptep; 187 return (r); --- 117 unchanged lines hidden --- | 180 181static __inline pt_entry_t 182pte_load(pt_entry_t *ptep) 183{ 184 pt_entry_t r; 185 186 r = *ptep; 187 return (r); --- 117 unchanged lines hidden --- |