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 #include <machine/pte.h> 40 41 #if !defined(NPMAPS) 42 #define NPMAPS 32768 43 #endif /* !defined(NPMAPS) */ 44 45 struct pmap { 46 u_int pm_sr[16]; 47 u_int pm_active; 48 u_int pm_context; 49 struct pmap_statistics pm_stats; 50 }; 51 52 typedef struct pmap *pmap_t; 53 54 struct pvo_entry { 55 LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */ 56 LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */ 57 struct pte pvo_pte; /* PTE */ 58 pmap_t pvo_pmap; /* Owning pmap */ 59 vm_offset_t pvo_vaddr; /* VA of entry */ 60 }; 61 LIST_HEAD(pvo_head, pvo_entry); 62 63 struct md_page { 64 u_int mdpg_attrs; 65 struct pvo_head mdpg_pvoh; 66 }; 67 68 extern struct pmap kernel_pmap_store; 69 #define kernel_pmap (&kernel_pmap_store) 70 71 #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh)) 72 73 #ifdef _KERNEL 74 75 void pmap_bootstrap(vm_offset_t, vm_offset_t); 76 void pmap_kenter(vm_offset_t va, vm_offset_t pa); 77 void pmap_kremove(vm_offset_t); 78 void *pmap_mapdev(vm_offset_t, vm_size_t); 79 void pmap_unmapdev(vm_offset_t, vm_size_t); 80 void pmap_deactivate(struct thread *); 81 vm_offset_t pmap_kextract(vm_offset_t); 82 83 int pmap_pte_spill(vm_offset_t); 84 85 #define vtophys(va) pmap_kextract(((vm_offset_t)(va))) 86 87 extern vm_offset_t phys_avail[]; 88 extern vm_offset_t virtual_avail; 89 extern vm_offset_t virtual_end; 90 91 extern vm_offset_t msgbuf_phys; 92 93 #endif 94 95 #endif /* !_MACHINE_PMAP_H_ */ 96