2 * Copyright (c) 1991 Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
6 * the Systems Programming Group of the University of Utah Computer
7 * Science Department and William Jolitz of UUNET Technologies Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * from: hp300: @(#)pmap.h 7.2 (Berkeley) 12/16/90
34 * from: @(#)pmap.h 7.4 (Berkeley) 5/12/91
35 * from: FreeBSD: src/sys/i386/include/pmap.h,v 1.70 2000/11/30
39 #ifndef _MACHINE_PMAP_H_
40 #define _MACHINE_PMAP_H_
42 #include <sys/queue.h>
43 #include <sys/_cpuset.h>
44 #include <sys/_lock.h>
45 #include <sys/_mutex.h>
46 #include <sys/_rwlock.h>
47 #include <machine/cache.h>
48 #include <machine/tte.h>
50 #define PMAP_CONTEXT_MAX 8192
52 typedef struct pmap *pmap_t;
55 TAILQ_HEAD(, tte) tte_list;
57 uint32_t colors[DCACHE_COLORS];
65 vm_object_t pm_tsb_obj;
67 u_int pm_context[MAXCPU];
68 struct pmap_statistics pm_stats;
71 #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx)
72 #define PMAP_LOCK_ASSERT(pmap, type) \
73 mtx_assert(&(pmap)->pm_mtx, (type))
74 #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx)
75 #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \
76 NULL, MTX_DEF | MTX_DUPOK)
77 #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx)
78 #define PMAP_MTX(pmap) (&(pmap)->pm_mtx)
79 #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx)
80 #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx)
82 #define MDPAGE_ASSERT_WLOCKED() rw_assert(&md_page_rwlock, RA_WLOCKED)
83 #define MDPAGE_RLOCK() rw_rlock(&md_page_rwlock)
84 #define MDPAGE_WLOCK() rw_wlock(&md_page_rwlock)
85 #define MDPAGE_RUNLOCK() rw_runlock(&md_page_rwlock)
86 #define MDPAGE_WUNLOCK() rw_wunlock(&md_page_rwlock)
88 #define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT
89 #define pmap_page_set_memattr(m, ma) (void)0
91 void pmap_bootstrap(u_int cpu_impl);
92 vm_paddr_t pmap_kextract(vm_offset_t va);
93 void pmap_kenter(vm_offset_t va, vm_page_t m);
94 void pmap_kremove(vm_offset_t);
95 void pmap_kenter_flags(vm_offset_t va, vm_paddr_t pa, u_long flags);
96 void pmap_kremove_flags(vm_offset_t va);
97 boolean_t pmap_page_is_mapped(vm_page_t m);
99 int pmap_cache_enter(vm_page_t m, vm_offset_t va);
101 int pmap_remove_tte(struct pmap *pm1, struct pmap *pm2, struct tte *tp,
104 void pmap_map_tsb(void);
105 void pmap_set_kctx(void);
107 #define vtophys(va) pmap_kextract((vm_offset_t)(va))
109 extern struct pmap kernel_pmap_store;
110 #define kernel_pmap (&kernel_pmap_store)
111 extern struct rwlock md_page_rwlock;
112 extern vm_paddr_t phys_avail[];
113 extern vm_offset_t virtual_avail;
114 extern vm_offset_t virtual_end;
118 SYSCTL_DECL(_debug_pmap_stats);
120 #define PMAP_STATS_VAR(name) \
122 SYSCTL_LONG(_debug_pmap_stats, OID_AUTO, name, CTLFLAG_RW, \
125 #define PMAP_STATS_INC(var) \
126 atomic_add_long(&var, 1)
130 #define PMAP_STATS_VAR(name)
131 #define PMAP_STATS_INC(var)
135 #endif /* !_MACHINE_PMAP_H_ */