1 /* $NetBSD: pmap.h,v 1.15 2007/10/17 19:54:41 garbled Exp $ */ 2 3 /* $OpenBSD: pmap.h,v 1.14 2001/05/09 15:31:24 art Exp $ */ 4 5 /* 6 * Copyright (c) 1998,1999 Michael Shalayeff 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Michael Shalayeff. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 /* 35 * Copyright 1996 1995 by Open Software Foundation, Inc. 36 * All Rights Reserved 37 * 38 * Permission to use, copy, modify, and distribute this software and 39 * its documentation for any purpose and without fee is hereby granted, 40 * provided that the above copyright notice appears in all copies and 41 * that both the copyright notice and this permission notice appear in 42 * supporting documentation. 43 * 44 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 45 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 46 * FOR A PARTICULAR PURPOSE. 47 * 48 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 49 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 50 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 51 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 52 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 53 */ 54 /* 55 * Copyright (c) 1990,1993,1994 The University of Utah and 56 * the Computer Systems Laboratory at the University of Utah (CSL). 57 * All rights reserved. 58 * 59 * Permission to use, copy, modify and distribute this software is hereby 60 * granted provided that (1) source code retains these copyright, permission, 61 * and disclaimer notices, and (2) redistributions including binaries 62 * reproduce the notices in supporting documentation, and (3) all advertising 63 * materials mentioning features or use of this software display the following 64 * acknowledgement: ``This product includes software developed by the 65 * Computer Systems Laboratory at the University of Utah.'' 66 * 67 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS 68 * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF 69 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 70 * 71 * CSL requests users of this software to return to csl-dist@cs.utah.edu any 72 * improvements that they make and grant CSL redistribution rights. 73 * 74 * Utah $Hdr: pmap.h 1.24 94/12/14$ 75 * Author: Mike Hibler, Bob Wheeler, University of Utah CSL, 9/90 76 */ 77 78 /* 79 * Pmap header for hppa. 80 */ 81 82 #ifndef _HPPA_PMAP_H_ 83 #define _HPPA_PMAP_H_ 84 85 #include <machine/pte.h> 86 87 typedef 88 struct pmap { 89 TAILQ_ENTRY(pmap) pmap_list; /* pmap free list */ 90 struct simplelock pmap_lock; /* lock on map */ 91 int pmap_refcnt; /* reference count */ 92 pa_space_t pmap_space; /* space for this pmap */ 93 u_int pmap_pid; /* protection id for pmap */ 94 struct pmap_statistics pmap_stats; /* statistics */ 95 } *pmap_t; 96 extern pmap_t kernel_pmap; /* The kernel's map */ 97 98 #ifdef _KERNEL 99 100 #define PMAP_NC 0x100 101 102 #define cache_align(x) (((x) + dcache_line_mask) & ~(dcache_line_mask)) 103 extern int dcache_line_mask; 104 105 #define PMAP_STEAL_MEMORY /* we have some memory to steal */ 106 107 /* 108 * according to the parisc manual aliased va's should be 109 * different by high 12 bits only. 110 */ 111 #define PMAP_PREFER(o,h,s,td) do { \ 112 vaddr_t pmap_prefer_hint; \ 113 pmap_prefer_hint = (*(h) & HPPA_PGAMASK) | ((o) & HPPA_PGAOFF); \ 114 if (pmap_prefer_hint < *(h)) \ 115 pmap_prefer_hint += HPPA_PGALIAS; \ 116 *(h) = pmap_prefer_hint; \ 117 } while(0) 118 119 #define pmap_kernel_va(VA) \ 120 (((VA) >= VM_MIN_KERNEL_ADDRESS) && ((VA) <= VM_MAX_KERNEL_ADDRESS)) 121 122 #define pmap_kernel() (kernel_pmap) 123 #define pmap_resident_count(pmap) ((pmap)->pmap_stats.resident_count) 124 #define pmap_wired_count(pmap) ((pmap)->pmap_stats.wired_count) 125 #define pmap_reference(pmap) \ 126 do { if (pmap) { \ 127 simple_lock(&pmap->pmap_lock); \ 128 pmap->pmap_refcnt++; \ 129 simple_unlock(&pmap->pmap_lock); \ 130 } } while (0) 131 #define pmap_collect(pmap) 132 #define pmap_release(pmap) 133 #define pmap_copy(dpmap,spmap,da,len,sa) 134 #define pmap_update(p) 135 void pmap_activate(struct lwp *); 136 137 static __inline void 138 pmap_deactivate(struct lwp *l) 139 { 140 } 141 142 #define pmap_phys_address(x) ((x) << PGSHIFT) 143 #define pmap_phys_to_frame(x) ((x) >> PGSHIFT) 144 145 static __inline void 146 pmap_remove_all(struct pmap *pmap) 147 { 148 /* Nothing. */ 149 } 150 151 static __inline int 152 pmap_prot(struct pmap *pmap, vm_prot_t prot) 153 { 154 extern u_int kern_prot[], user_prot[]; 155 156 return (pmap == kernel_pmap ? kern_prot : user_prot)[prot]; 157 } 158 159 #define pmap_sid(pmap, va) \ 160 ((((va) & 0xc0000000) != 0xc0000000) ? \ 161 (pmap)->pmap_space : HPPA_SID_KERNEL) 162 163 #endif /* _KERNEL */ 164 165 #endif /* _HPPA_PMAP_H_ */ 166