| pmap.h (235598) | pmap.h (237168) |
|---|---|
| 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 235598 2012-05-18 05:36:04Z alc $ | 42 * $FreeBSD: head/sys/amd64/include/pmap.h 237168 2012-06-16 18:56:19Z alc $ |
| 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. --- 253 unchanged lines hidden (view full) --- 304extern caddr_t CADDR1; 305extern pt_entry_t *CMAP1; 306extern vm_paddr_t phys_avail[]; 307extern vm_paddr_t dump_avail[]; 308extern vm_offset_t virtual_avail; 309extern vm_offset_t virtual_end; 310 311#define pmap_page_get_memattr(m) ((vm_memattr_t)(m)->md.pat_mode) | 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. --- 253 unchanged lines hidden (view full) --- 304extern caddr_t CADDR1; 305extern pt_entry_t *CMAP1; 306extern vm_paddr_t phys_avail[]; 307extern vm_paddr_t dump_avail[]; 308extern vm_offset_t virtual_avail; 309extern vm_offset_t virtual_end; 310 311#define pmap_page_get_memattr(m) ((vm_memattr_t)(m)->md.pat_mode) |
| 312#define pmap_page_is_write_mapped(m) (((m)->aflags & PGA_WRITEABLE) != 0) |
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| 312#define pmap_unmapbios(va, sz) pmap_unmapdev((va), (sz)) 313 314void pmap_bootstrap(vm_paddr_t *); 315int pmap_change_attr(vm_offset_t, vm_size_t, int); 316void pmap_demote_DMAP(vm_paddr_t base, vm_size_t len, boolean_t invalidate); 317void pmap_init_pat(void); 318void pmap_kenter(vm_offset_t va, vm_paddr_t pa); 319void *pmap_kenter_temporary(vm_paddr_t pa, int i); --- 20 unchanged lines hidden --- | 313#define pmap_unmapbios(va, sz) pmap_unmapdev((va), (sz)) 314 315void pmap_bootstrap(vm_paddr_t *); 316int pmap_change_attr(vm_offset_t, vm_size_t, int); 317void pmap_demote_DMAP(vm_paddr_t base, vm_size_t len, boolean_t invalidate); 318void pmap_init_pat(void); 319void pmap_kenter(vm_offset_t va, vm_paddr_t pa); 320void *pmap_kenter_temporary(vm_paddr_t pa, int i); --- 20 unchanged lines hidden --- |