2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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.
31 * $NetBSD: pmap.h,v 1.17 2000/03/30 16:18:24 jdolecek Exp $
35 #ifndef _MACHINE_PMAP_H_
36 #define _MACHINE_PMAP_H_
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>
46 #endif /* !defined(NPMAPS) */
53 struct pmap_statistics pm_stats;
56 typedef struct pmap *pmap_t;
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 */
65 LIST_HEAD(pvo_head, pvo_entry);
69 struct pvo_head mdpg_pvoh;
72 extern struct pmap kernel_pmap_store;
73 #define kernel_pmap (&kernel_pmap_store)
75 #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh))
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", \
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)
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);
101 #define vtophys(va) pmap_kextract((vm_offset_t)(va))
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;
108 extern vm_offset_t msgbuf_phys;
110 extern int pmap_bootstrapped;
114 #endif /* !_MACHINE_PMAP_H_ */