| pmap.h (147671) | pmap.h (153179) |
|---|---|
| 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 147671 2005-06-29 22:28:46Z peter $ | 42 * $FreeBSD: head/sys/amd64/include/pmap.h 153179 2005-12-06 21:09:01Z jhb $ |
| 43 */ 44 45#ifndef _MACHINE_PMAP_H_ 46#define _MACHINE_PMAP_H_ 47 48/* | 43 */ 44 45#ifndef _MACHINE_PMAP_H_ 46#define _MACHINE_PMAP_H_ 47 48/* |
| 49 * Page-directory and page-table entires follow this format, with a few | 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. 51 */ 52 /* ---- Intel Nomenclature ---- */ 53#define PG_V 0x001 /* P Valid */ 54#define PG_RW 0x002 /* R/W Read/Write */ 55#define PG_U 0x004 /* U/S User/Supervisor */ 56#define PG_NC_PWT 0x008 /* PWT Write through */ 57#define PG_NC_PCD 0x010 /* PCD Cache disable */ --- 108 unchanged lines hidden (view full) --- 166#define PML4pml4e ((pd_entry_t *)(addr_PML4pml4e)) 167 168extern u_int64_t KPML4phys; /* physical address of kernel level 4 */ 169#endif 170 171#ifdef _KERNEL 172/* 173 * virtual address to page table entry and | 50 * of the fields not present here and there, depending on a lot of things. 51 */ 52 /* ---- Intel Nomenclature ---- */ 53#define PG_V 0x001 /* P Valid */ 54#define PG_RW 0x002 /* R/W Read/Write */ 55#define PG_U 0x004 /* U/S User/Supervisor */ 56#define PG_NC_PWT 0x008 /* PWT Write through */ 57#define PG_NC_PCD 0x010 /* PCD Cache disable */ --- 108 unchanged lines hidden (view full) --- 166#define PML4pml4e ((pd_entry_t *)(addr_PML4pml4e)) 167 168extern u_int64_t KPML4phys; /* physical address of kernel level 4 */ 169#endif 170 171#ifdef _KERNEL 172/* 173 * virtual address to page table entry and |
| 174 * to physical address. Likewise for alternate address space. | 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); | 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); |
| 179vm_paddr_t pmap_kextract(vm_offset_t); | 179#define vtophys(va) pmap_kextract((vm_offset_t)(va)) |
| 180 | 180 |
| 181#define vtophys(va) pmap_kextract(((vm_offset_t) (va))) 182 | |
| 183static __inline pt_entry_t 184pte_load(pt_entry_t *ptep) 185{ 186 pt_entry_t r; 187 188 r = *ptep; 189 return (r); 190} --- 95 unchanged lines hidden (view full) --- 286extern vm_offset_t virtual_avail; 287extern vm_offset_t virtual_end; 288 289#define pmap_page_is_mapped(m) (!TAILQ_EMPTY(&(m)->md.pv_list)) 290 291void pmap_bootstrap(vm_paddr_t *); 292void pmap_kenter(vm_offset_t va, vm_paddr_t pa); 293void *pmap_kenter_temporary(vm_paddr_t pa, int i); | 181static __inline pt_entry_t 182pte_load(pt_entry_t *ptep) 183{ 184 pt_entry_t r; 185 186 r = *ptep; 187 return (r); 188} --- 95 unchanged lines hidden (view full) --- 284extern vm_offset_t virtual_avail; 285extern vm_offset_t virtual_end; 286 287#define pmap_page_is_mapped(m) (!TAILQ_EMPTY(&(m)->md.pv_list)) 288 289void pmap_bootstrap(vm_paddr_t *); 290void pmap_kenter(vm_offset_t va, vm_paddr_t pa); 291void *pmap_kenter_temporary(vm_paddr_t pa, int i); |
| 292vm_paddr_t pmap_kextract(vm_offset_t); |
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| 294void pmap_kremove(vm_offset_t); 295void *pmap_mapdev(vm_paddr_t, vm_size_t); 296void pmap_unmapdev(vm_offset_t, vm_size_t); 297void pmap_invalidate_page(pmap_t, vm_offset_t); 298void pmap_invalidate_range(pmap_t, vm_offset_t, vm_offset_t); 299void pmap_invalidate_all(pmap_t); 300 301#endif /* _KERNEL */ 302 303#endif /* !LOCORE */ 304 305#endif /* !_MACHINE_PMAP_H_ */ | 293void pmap_kremove(vm_offset_t); 294void *pmap_mapdev(vm_paddr_t, vm_size_t); 295void pmap_unmapdev(vm_offset_t, vm_size_t); 296void pmap_invalidate_page(pmap_t, vm_offset_t); 297void pmap_invalidate_range(pmap_t, vm_offset_t, vm_offset_t); 298void pmap_invalidate_all(pmap_t); 299 300#endif /* _KERNEL */ 301 302#endif /* !LOCORE */ 303 304#endif /* !_MACHINE_PMAP_H_ */ |