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 <sys/queue.h> 39 #include <sys/_lock.h> 40 #include <sys/_mutex.h> 41 #include <machine/sr.h> 42 #include <machine/pte.h> 43 44 #if !defined(NPMAPS) 45 #define NPMAPS 32768 46 #endif /* !defined(NPMAPS) */ 47 48 struct pmap { 49 struct mtx pm_mtx; 50 u_int pm_sr[16]; 51 u_int pm_active; 52 u_int pm_context; 53 struct pmap_statistics pm_stats; 54 }; 55 56 typedef struct pmap *pmap_t; 57 58 struct pvo_entry { 59 LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */ 60 LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */ 61 struct pte pvo_pte; /* PTE */ 62 pmap_t pvo_pmap; /* Owning pmap */ 63 vm_offset_t pvo_vaddr; /* VA of entry */ 64 }; 65 LIST_HEAD(pvo_head, pvo_entry); 66 67 struct md_page { 68 u_int mdpg_attrs; 69 struct pvo_head mdpg_pvoh; 70 }; 71 72 extern struct pmap kernel_pmap_store; 73 #define kernel_pmap (&kernel_pmap_store) 74 75 #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh)) 76 77 #ifdef _KERNEL 78 79 #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) 80 #define PMAP_LOCK_ASSERT(pmap, type) \ 81 mtx_assert(&(pmap)->pm_mtx, (type)) 82 #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) 83 #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ 84 NULL, MTX_DEF) 85 #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) 86 #define PMAP_MTX(pmap) (&(pmap)->pm_mtx) 87 #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) 88 #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) 89 90 void pmap_bootstrap(vm_offset_t, vm_offset_t); 91 void pmap_kenter(vm_offset_t va, vm_offset_t pa); 92 void pmap_kremove(vm_offset_t); 93 void *pmap_mapdev(vm_offset_t, vm_size_t); 94 void pmap_unmapdev(vm_offset_t, vm_size_t); 95 void pmap_deactivate(struct thread *); 96 vm_offset_t pmap_kextract(vm_offset_t); 97 int pmap_dev_direct_mapped(vm_offset_t, vm_size_t); 98 boolean_t pmap_page_executable(vm_page_t); 99 boolean_t pmap_mmu_install(char *name, int prio); 100 101 #define vtophys(va) pmap_kextract((vm_offset_t)(va)) 102 103 #define PHYS_AVAIL_SZ 128 104 extern vm_offset_t phys_avail[PHYS_AVAIL_SZ]; 105 extern vm_offset_t virtual_avail; 106 extern vm_offset_t virtual_end; 107 108 extern vm_offset_t msgbuf_phys; 109 110 extern int pmap_bootstrapped; 111 112 #endif 113 114 #endif /* !_MACHINE_PMAP_H_ */ 115