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 		.mask	= _PAGE_PRIVILEGED,
15 		.val	= 0,
16 		.set	= "user",
17 		.clear	= "    ",
18 	}, {
19 		.mask	= _PAGE_READ,
20 		.val	= _PAGE_READ,
21 		.set	= "r",
22 		.clear	= " ",
23 	}, {
24 		.mask	= _PAGE_WRITE,
25 		.val	= _PAGE_WRITE,
26 		.set	= "w",
27 		.clear	= " ",
28 	}, {
29 		.mask	= _PAGE_EXEC,
30 		.val	= _PAGE_EXEC,
31 		.set	= " X ",
32 		.clear	= "   ",
33 	}, {
34 		.mask	= _PAGE_PTE,
35 		.val	= _PAGE_PTE,
36 		.set	= "pte",
37 		.clear	= "   ",
38 	}, {
39 		.mask	= _PAGE_PRESENT,
40 		.val	= _PAGE_PRESENT,
41 		.set	= "valid",
42 		.clear	= "     ",
43 	}, {
44 		.mask	= _PAGE_PRESENT | _PAGE_INVALID,
45 		.val	= 0,
46 		.set	= "       ",
47 		.clear	= "present",
48 	}, {
49 		.mask	= H_PAGE_HASHPTE,
50 		.val	= H_PAGE_HASHPTE,
51 		.set	= "hpte",
52 		.clear	= "    ",
53 	}, {
54 		.mask	= _PAGE_DIRTY,
55 		.val	= _PAGE_DIRTY,
56 		.set	= "dirty",
57 		.clear	= "     ",
58 	}, {
59 		.mask	= _PAGE_ACCESSED,
60 		.val	= _PAGE_ACCESSED,
61 		.set	= "accessed",
62 		.clear	= "        ",
63 	}, {
64 		.mask	= _PAGE_NON_IDEMPOTENT,
65 		.val	= _PAGE_NON_IDEMPOTENT,
66 		.set	= "non-idempotent",
67 		.clear	= "              ",
68 	}, {
69 		.mask	= _PAGE_TOLERANT,
70 		.val	= _PAGE_TOLERANT,
71 		.set	= "tolerant",
72 		.clear	= "        ",
73 	}, {
74 		.mask	= H_PAGE_BUSY,
75 		.val	= H_PAGE_BUSY,
76 		.set	= "busy",
77 	}, {
78 #ifdef CONFIG_PPC_64K_PAGES
79 		.mask	= H_PAGE_COMBO,
80 		.val	= H_PAGE_COMBO,
81 		.set	= "combo",
82 	}, {
83 		.mask	= H_PAGE_4K_PFN,
84 		.val	= H_PAGE_4K_PFN,
85 		.set	= "4K_pfn",
86 	}, {
87 #else /* CONFIG_PPC_64K_PAGES */
88 		.mask	= H_PAGE_F_GIX,
89 		.val	= H_PAGE_F_GIX,
90 		.set	= "f_gix",
91 		.is_val	= true,
92 		.shift	= H_PAGE_F_GIX_SHIFT,
93 	}, {
94 		.mask	= H_PAGE_F_SECOND,
95 		.val	= H_PAGE_F_SECOND,
96 		.set	= "f_second",
97 	}, {
98 #endif /* CONFIG_PPC_64K_PAGES */
99 		.mask	= _PAGE_SPECIAL,
100 		.val	= _PAGE_SPECIAL,
101 		.set	= "special",
102 	}
103 };
104 
105 struct pgtable_level pg_level[5] = {
106 	{ /* pgd */
107 		.flag	= flag_array,
108 		.num	= ARRAY_SIZE(flag_array),
109 	}, { /* p4d */
110 		.flag	= flag_array,
111 		.num	= ARRAY_SIZE(flag_array),
112 	}, { /* pud */
113 		.flag	= flag_array,
114 		.num	= ARRAY_SIZE(flag_array),
115 	}, { /* pmd */
116 		.flag	= flag_array,
117 		.num	= ARRAY_SIZE(flag_array),
118 	}, { /* pte */
119 		.flag	= flag_array,
120 		.num	= ARRAY_SIZE(flag_array),
121 	},
122 };
123