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

| RTEMS 5.4-rc2

Loading...
Searching...
No Matches
tte.h
Go to the documentation of this file.
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_TTE_H_
36#define KERN_sparc64_sun4u_TTE_H_
37
38#define TTE_G (1 << 0)
39#define TTE_W (1 << 1)
40#define TTE_P (1 << 2)
41#define TTE_E (1 << 3)
42#define TTE_CV (1 << 4)
43#define TTE_CP (1 << 5)
44#define TTE_L (1 << 6)
45
46#define TTE_V_SHIFT 63
47#define TTE_SIZE_SHIFT 61
48
49#ifndef __ASM__
50
51#include <arch/types.h>
52
53/* TTE tag's VA_tag field contains bits <63:VA_TAG_PAGE_SHIFT> of the VA */
54#define VA_TAG_PAGE_SHIFT 22
55
57 union tte_tag {
58 uint64_t value;
59 struct {
60 unsigned g : 1;
61 unsigned : 2;
62 unsigned context : 13;
63 unsigned : 6;
64 uint64_t va_tag : 42;
65 } __attribute__ ((packed));
66};
67
68typedef union tte_tag tte_tag_t;
69
71 union tte_data {
72 uint64_t value;
73 struct {
74 unsigned v : 1;
75 unsigned size : 2;
76 unsigned nfo : 1;
77 unsigned ie : 1;
78 unsigned soft2 : 9;
79#if defined (US)
80 unsigned diag : 9;
81 unsigned pfn : 28;
82#elif defined (US3)
83 unsigned : 7;
84 unsigned pfn : 30;
85#endif
86 unsigned soft : 6;
87 unsigned l : 1;
88 unsigned cp : 1;
89 unsigned cv : 1;
90 unsigned e : 1;
91 unsigned p : 1;
92 unsigned w : 1;
93 unsigned g : 1;
94 } __attribute__ ((packed));
95};
96
97typedef union tte_data tte_data_t;
98
99#endif /* !def __ASM__ */
100
101#endif
102
__attribute__
Definition: jffs2.h:92
tte_data
Definition: tte.h:71
tte_data::size
unsigned size
Definition: tte.h:75
tte_data::cp
unsigned cp
Definition: tte.h:88
tte_data::nfo
unsigned nfo
Definition: tte.h:76
tte_data::w
unsigned w
Definition: tte.h:92
tte_data::g
unsigned g
Definition: tte.h:93
tte_data::l
unsigned l
Definition: tte.h:87
tte_data::cv
unsigned cv
Definition: tte.h:89
tte_data::v
unsigned v
Definition: tte.h:74
tte_data::p
unsigned p
Definition: tte.h:91
tte_data::e
unsigned e
Definition: tte.h:90
tte_data::soft2
unsigned soft2
Definition: tte.h:78
tte_data::ie
unsigned ie
Definition: tte.h:77
tte_data::soft
unsigned soft
Definition: tte.h:86
tte_tag
Definition: tte.h:57
tte_tag::context
unsigned context
Definition: tte.h:62
tte_tag::g
unsigned g
Definition: tte.h:60
tte_tag::va_tag
uint64_t va_tag
Definition: tte.h:64