2 * Copyright (C) 2006 Semihalf, Marian Balakowicz <m8@semihalf.com>
5 * Adapted for Freescale's e500 core CPUs.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
21 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
33 * Copyright (C) 1995, 1996 TooLs GmbH.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by TooLs GmbH.
47 * 4. The name of TooLs GmbH may not be used to endorse or promote products
48 * derived from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
53 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
55 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
56 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
57 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
58 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
59 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 * from: $NetBSD: pmap.h,v 1.17 2000/03/30 16:18:24 jdolecek Exp $
64 #ifndef _MACHINE_PMAP_H_
65 #define _MACHINE_PMAP_H_
67 #include <sys/queue.h>
68 #include <sys/_lock.h>
69 #include <sys/_mutex.h>
70 #include <machine/sr.h>
71 #include <machine/pte.h>
72 #include <machine/tlb.h>
78 #endif /* !defined(NPMAPS) */
85 struct pmap_statistics pm_stats;
88 typedef struct pmap *pmap_t;
91 LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */
92 LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */
93 struct pte pvo_pte; /* PTE */
94 pmap_t pvo_pmap; /* Owning pmap */
95 vm_offset_t pvo_vaddr; /* VA of entry */
97 LIST_HEAD(pvo_head, pvo_entry);
101 struct pvo_head mdpg_pvoh;
104 #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh))
109 struct mtx pm_mtx; /* pmap mutex */
110 tlbtid_t pm_tid; /* TID to identify this pmap entries in TLB */
111 u_int pm_active; /* active on cpus */
112 int pm_refs; /* ref count */
113 struct pmap_statistics pm_stats;/* pmap statistics */
115 /* Page table directory, array of pointers to page tables. */
116 pte_t *pm_pdir[PDIR_NENTRIES];
118 /* List of allocated ptbl bufs (ptbl kva regions). */
119 TAILQ_HEAD(, ptbl_buf) ptbl_list;
121 typedef struct pmap *pmap_t;
126 TAILQ_ENTRY(pv_entry) pv_link;
128 typedef struct pv_entry *pv_entry_t;
131 TAILQ_HEAD(, pv_entry) pv_list;
134 #define MEM_REGIONS 8
135 #define pmap_page_is_mapped(m) (!TAILQ_EMPTY(&(m)->md.pv_list))
139 extern struct pmap kernel_pmap_store;
140 #define kernel_pmap (&kernel_pmap_store)
144 #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx)
145 #define PMAP_LOCK_ASSERT(pmap, type) \
146 mtx_assert(&(pmap)->pm_mtx, (type))
147 #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx)
148 #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \
150 #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx)
151 #define PMAP_MTX(pmap) (&(pmap)->pm_mtx)
152 #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx)
153 #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx)
155 void pmap_bootstrap(vm_offset_t, vm_offset_t);
156 void pmap_kenter(vm_offset_t va, vm_offset_t pa);
157 void pmap_kremove(vm_offset_t);
158 void *pmap_mapdev(vm_offset_t, vm_size_t);
159 boolean_t pmap_page_executable(vm_page_t);
160 void pmap_unmapdev(vm_offset_t, vm_size_t);
161 void pmap_deactivate(struct thread *);
162 vm_offset_t pmap_kextract(vm_offset_t);
163 int pmap_dev_direct_mapped(vm_offset_t, vm_size_t);
164 boolean_t pmap_mmu_install(char *name, int prio);
166 #define vtophys(va) pmap_kextract((vm_offset_t)(va))
168 #define PHYS_AVAIL_SZ 128
169 extern vm_offset_t phys_avail[PHYS_AVAIL_SZ];
170 extern vm_offset_t virtual_avail;
171 extern vm_offset_t virtual_end;
173 extern vm_offset_t msgbuf_phys;
175 extern int pmap_bootstrapped;
179 #endif /* !_MACHINE_PMAP_H_ */