1 /*- 2 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3 * Copyright (C) 1995, 1996 TooLs GmbH. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by TooLs GmbH. 17 * 4. The name of TooLs GmbH may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: pmap.h,v 1.17 2000/03/30 16:18:24 jdolecek Exp $ 32 * $FreeBSD$ 33 */ 34 35 #ifndef _MACHINE_PMAP_H_ 36 #define _MACHINE_PMAP_H_ 37 38 #include <machine/sr.h> 39 40 struct pmap { 41 u_int pm_sr[16]; 42 u_int pm_active; 43 u_int pm_context; 44 struct pmap_statistics pm_stats; 45 }; 46 47 typedef struct pmap *pmap_t; 48 49 struct pvo_entry { 50 LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */ 51 LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */ 52 struct pte pvo_pte; /* PTE */ 53 pmap_t pvo_pmap; /* Owning pmap */ 54 vm_offset_t pvo_vaddr; /* VA of entry */ 55 }; 56 LIST_HEAD(pvo_head, pvo_entry); 57 58 struct md_page { 59 u_int mdpg_attrs; 60 struct pvo_head mdpg_pvoh; 61 }; 62 63 extern struct pmap kernel_pmap_store; 64 #define kernel_pmap (&kernel_pmap_store) 65 66 #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh)) 67 #define pmap_resident_count(pm) (pm->pm_stats.resident_count) 68 69 #ifdef _KERNEL 70 71 void pmap_bootstrap(vm_offset_t, vm_offset_t); 72 void *pmap_mapdev(vm_offset_t, vm_size_t); 73 void pmap_unmapdev(vm_offset_t, vm_size_t); 74 void pmap_deactivate(struct thread *); 75 vm_offset_t pmap_kextract(vm_offset_t); 76 77 int pmap_pte_spill(vm_offset_t); 78 79 #define vtophys(va) pmap_kextract(((vm_offset_t)(va))) 80 81 extern vm_offset_t avail_start; 82 extern vm_offset_t avail_end; 83 extern vm_offset_t phys_avail[]; 84 extern vm_offset_t virtual_avail; 85 extern vm_offset_t virtual_end; 86 87 extern vm_offset_t msgbuf_phys; 88 89 #endif 90 91 #endif /* !_MACHINE_PMAP_H_ */ 92