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
12static 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
105struct 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