RTEMS: bsps/sparc64/include/arch/mm/sun4u/mmu.h Source File

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mmu.h
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1/*
2 * Copyright (c) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - 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 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
35#ifndef KERN_sparc64_sun4u_MMU_H_
36#define KERN_sparc64_sun4u_MMU_H_
37
38#if defined(US)
39/* LSU Control Register ASI. */
40#define ASI_LSU_CONTROL_REG 0x45
41#endif
42
43/* I-MMU ASIs. */
44#define ASI_IMMU 0x50
45#define ASI_IMMU_TSB_8KB_PTR_REG 0x51
46#define ASI_IMMU_TSB_64KB_PTR_REG 0x52
47#define ASI_ITLB_DATA_IN_REG 0x54
48#define ASI_ITLB_DATA_ACCESS_REG 0x55
49#define ASI_ITLB_TAG_READ_REG 0x56
50#define ASI_IMMU_DEMAP 0x57
51
52/* Virtual Addresses within ASI_IMMU. */
53#define VA_IMMU_TSB_TAG_TARGET 0x0
54#define VA_IMMU_SFSR 0x18
55#define VA_IMMU_TSB_BASE 0x28
56#define VA_IMMU_TAG_ACCESS 0x30
57#if defined (US3)
58#define VA_IMMU_PRIMARY_EXTENSION 0x48
59#define VA_IMMU_NUCLEUS_EXTENSION 0x58
60#endif
61
62
63/* D-MMU ASIs. */
64#define ASI_DMMU 0x58
65#define ASI_DMMU_TSB_8KB_PTR_REG 0x59
66#define ASI_DMMU_TSB_64KB_PTR_REG 0x5a
67#define ASI_DMMU_TSB_DIRECT_PTR_REG 0x5b
68#define ASI_DTLB_DATA_IN_REG 0x5c
69#define ASI_DTLB_DATA_ACCESS_REG 0x5d
70#define ASI_DTLB_TAG_READ_REG 0x5e
71#define ASI_DMMU_DEMAP 0x5f
72
73/* Virtual Addresses within ASI_DMMU. */
74#define VA_DMMU_TSB_TAG_TARGET 0x0
75#define VA_PRIMARY_CONTEXT_REG 0x8
76#define VA_SECONDARY_CONTEXT_REG 0x10
77#define VA_DMMU_SFSR 0x18
78#define VA_DMMU_SFAR 0x20
79#define VA_DMMU_TSB_BASE 0x28
80#define VA_DMMU_TAG_ACCESS 0x30
81#define VA_DMMU_VA_WATCHPOINT_REG 0x38
82#define VA_DMMU_PA_WATCHPOINT_REG 0x40
83#if defined (US3)
84#define VA_DMMU_PRIMARY_EXTENSION 0x48
85#define VA_DMMU_SECONDARY_EXTENSION 0x50
86#define VA_DMMU_NUCLEUS_EXTENSION 0x58
87#endif
88
89#ifndef __ASM__
90
91#include <arch/asm.h>
92#include <arch/barrier.h>
93#include <arch/types.h>
94
95#if defined(US)
97typedef union {
98 uint64_t value;
99 struct {
100 unsigned : 23;
101 unsigned pm : 8;
102 unsigned vm : 8;
103 unsigned pr : 1;
104 unsigned pw : 1;
105 unsigned vr : 1;
106 unsigned vw : 1;
107 unsigned : 1;
108 unsigned fm : 16;
109 unsigned dm : 1;
110 unsigned im : 1;
111 unsigned dc : 1;
112 unsigned ic : 1;
114 } __attribute__ ((packed));
115} lsu_cr_reg_t;
116#endif /* US */
117
118#endif /* !def __ASM__ */
119
120#endif
121
__attribute__
Definition: jffs2.h:92