1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/* $OpenBSD: pmap.h,v 1.7 2001/05/26 03:27:58 art Exp $ */
/* $NetBSD: pmap.h,v 1.1 1996/09/30 16:34:29 ws Exp $ */
/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_PMAP_H_
#define _MACHINE_PMAP_H_
#include <machine/pte.h>
/*
* Segment registers
*/
#ifndef _LOCORE
typedef u_int sr_t;
#endif /* _LOCORE */
#define SR_TYPE 0x80000000
#define SR_SUKEY 0x40000000
#define SR_PRKEY 0x20000000
#define SR_VSID 0x00ffffff
#ifndef _LOCORE
/* V->P mapping data */
typedef int pmapv_t;
#define VP_SR_SIZE 32
#define VP_SR_MASK VP_SR_SIZE-1
#define VP_SR_POS 27
#define VP_IDX1_SIZE 1024
#define VP_IDX1_MASK VP_IDX1_SIZE-1
#define VP_IDX1_POS 17
#define VP_IDX2_SIZE 32
#define VP_IDX2_MASK VP_IDX2_SIZE-1
#define VP_IDX2_POS 12
/*
* Pmap stuff
*/
struct pmap {
sr_t pm_sr[16]; /* segments used in this pmap */
int pm_refs; /* ref count */
pmapv_t *vps[VP_SR_SIZE]; /* virtual to physical table */
struct pmap_statistics pm_stats; /* pmap statistics */
};
typedef struct pmap *pmap_t;
#ifdef _KERNEL
extern struct pmap kernel_pmap_;
#define pmap_kernel() (&kernel_pmap_)
#define pmap_clear_modify(pa) (ptemodify((pa), PTE_CHG, 0))
#define pmap_clear_reference(pa) (ptemodify((pa), PTE_REF, 0))
#define pmap_is_modified(pa) (ptebits((pa), PTE_CHG))
#define pmap_is_referenced(pa) (ptebits((pa), PTE_REF))
#define pmap_unwire(pm, va)
#define pmap_phys_address(x) (x)
#define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
/*
* Alternate mapping methods for pool.
* Really simple. 0x0->0x80000000 contain 1->1 mappings of the physical
* memory.
*/
#define PMAP_MAP_POOLPAGE(pa) ((vaddr_t)pa)
#define PMAP_UNMAP_POOLPAGE(va) ((paddr_t)va)
void pmap_bootstrap __P((u_int kernelstart, u_int kernelend));
#endif /* _KERNEL */
#endif /* _LOCORE */
#endif /* _MACHINE_PMAP_H_ */
|
