LXR linux/arch/powerpc/mm/ptdump/8xx.c

   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#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_SH,
  25                .val    = 0,
  26                .set    = "user",
  27                .clear  = "    ",
  28        }, {
  29                .mask   = _PAGE_RO | _PAGE_NA,
  30                .val    = 0,
  31                .set    = "rw",
  32        }, {
  33                .mask   = _PAGE_RO | _PAGE_NA,
  34                .val    = _PAGE_RO,
  35                .set    = "r ",
  36        }, {
  37                .mask   = _PAGE_RO | _PAGE_NA,
  38                .val    = _PAGE_NA,
  39                .set    = "  ",
  40        }, {
  41                .mask   = _PAGE_EXEC,
  42                .val    = _PAGE_EXEC,
  43                .set    = " X ",
  44                .clear  = "   ",
  45        }, {
  46                .mask   = _PAGE_PRESENT,
  47                .val    = _PAGE_PRESENT,
  48                .set    = "present",
  49                .clear  = "       ",
  50        }, {
  51                .mask   = _PAGE_GUARDED,
  52                .val    = _PAGE_GUARDED,
  53                .set    = "guarded",
  54                .clear  = "       ",
  55        }, {
  56                .mask   = _PAGE_DIRTY,
  57                .val    = _PAGE_DIRTY,
  58                .set    = "dirty",
  59                .clear  = "     ",
  60        }, {
  61                .mask   = _PAGE_ACCESSED,
  62                .val    = _PAGE_ACCESSED,
  63                .set    = "accessed",
  64                .clear  = "        ",
  65        }, {
  66                .mask   = _PAGE_NO_CACHE,
  67                .val    = _PAGE_NO_CACHE,
  68                .set    = "no cache",
  69                .clear  = "        ",
  70        }, {
  71                .mask   = _PAGE_SPECIAL,
  72                .val    = _PAGE_SPECIAL,
  73                .set    = "special",
  74        }
  75};
  76
  77struct pgtable_level pg_level[5] = {
  78        { /* pgd */
  79                .flag   = flag_array,
  80                .num    = ARRAY_SIZE(flag_array),
  81        }, { /* p4d */
  82                .flag   = flag_array,
  83                .num    = ARRAY_SIZE(flag_array),
  84        }, { /* pud */
  85                .flag   = flag_array,
  86                .num    = ARRAY_SIZE(flag_array),
  87        }, { /* pmd */
  88                .flag   = flag_array,
  89                .num    = ARRAY_SIZE(flag_array),
  90        }, { /* pte */
  91                .flag   = flag_array,
  92                .num    = ARRAY_SIZE(flag_array),
  93        },
  94};
  95