1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * From split of dump_linuxpagetables.c
4 * Copyright 2016, Rashmica Gupta, IBM Corp.
5 *
6 */
7 #include <linux/kernel.h>
8 #include <linux/pgtable.h>
9
10 #include "ptdump.h"
11
12 static const struct flag_info flag_array[] = {
13 {
14 #ifdef CONFIG_PPC_16K_PAGES
15 .mask = _PAGE_HUGE,
16 .val = _PAGE_HUGE,
17 #else
18 .mask = _PAGE_SPS,
19 .val = _PAGE_SPS,
20 #endif
21 .set = "huge",
22 .clear = " ",
23 }, {
24 .mask = _PAGE_RO | _PAGE_NA,
25 .val = 0,
26 .set = "rw",
27 }, {
28 .mask = _PAGE_RO | _PAGE_NA,
29 .val = _PAGE_RO,
30 .set = "r ",
31 }, {
32 .mask = _PAGE_RO | _PAGE_NA,
33 .val = _PAGE_NA,
34 .set = " ",
35 }, {
36 .mask = _PAGE_EXEC,
37 .val = _PAGE_EXEC,
38 .set = " X ",
39 .clear = " ",
40 }, {
41 .mask = _PAGE_PRESENT,
42 .val = _PAGE_PRESENT,
43 .set = "present",
44 .clear = " ",
45 }, {
46 .mask = _PAGE_GUARDED,
47 .val = _PAGE_GUARDED,
48 .set = "guarded",
49 .clear = " ",
50 }, {
51 .mask = _PAGE_DIRTY,
52 .val = _PAGE_DIRTY,
53 .set = "dirty",
54 .clear = " ",
55 }, {
56 .mask = _PAGE_ACCESSED,
57 .val = _PAGE_ACCESSED,
58 .set = "accessed",
59 .clear = " ",
60 }, {
61 .mask = _PAGE_NO_CACHE,
62 .val = _PAGE_NO_CACHE,
63 .set = "no cache",
64 .clear = " ",
65 }, {
66 .mask = _PAGE_SPECIAL,
67 .val = _PAGE_SPECIAL,
68 .set = "special",
69 }
70 };
71
72 struct pgtable_level pg_level[5] = {
73 { /* pgd */
74 .flag = flag_array,
75 .num = ARRAY_SIZE(flag_array),
76 }, { /* p4d */
77 .flag = flag_array,
78 .num = ARRAY_SIZE(flag_array),
79 }, { /* pud */
80 .flag = flag_array,
81 .num = ARRAY_SIZE(flag_array),
82 }, { /* pmd */
83 .flag = flag_array,
84 .num = ARRAY_SIZE(flag_array),
85 }, { /* pte */
86 .flag = flag_array,
87 .num = ARRAY_SIZE(flag_array),
88 },
89 };
90
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