Christophe Leroy ceaba662c0 powerpc/ptdump: Display _PAGE_READ and _PAGE_WRITE
Instead of always displaying either 'rw' or 'r ' depending on
_PAGE_RW, display 'r' or ' ' for _PAGE_READ and 'w' or ' '
for _PAGE_WRITE.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/dd8201a0f8fd87ce62a7ff2edc958b604b8ec3c0.1695659959.git.christophe.leroy@csgroup.eu
2023-10-19 17:12:47 +11:00

88 lines
1.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* From split of dump_linuxpagetables.c
* Copyright 2016, Rashmica Gupta, IBM Corp.
*
*/
#include <linux/kernel.h>
#include <linux/pgtable.h>
#include "ptdump.h"
static const struct flag_info flag_array[] = {
{
.mask = _PAGE_READ,
.val = 0,
.set = " ",
.clear = "r",
}, {
.mask = _PAGE_WRITE,
.val = 0,
.set = " ",
.clear = "w",
}, {
.mask = _PAGE_EXEC,
.val = _PAGE_EXEC,
.set = " X ",
.clear = " ",
}, {
.mask = _PAGE_PRESENT,
.val = _PAGE_PRESENT,
.set = "present",
.clear = " ",
}, {
.mask = _PAGE_COHERENT,
.val = _PAGE_COHERENT,
.set = "coherent",
.clear = " ",
}, {
.mask = _PAGE_GUARDED,
.val = _PAGE_GUARDED,
.set = "guarded",
.clear = " ",
}, {
.mask = _PAGE_DIRTY,
.val = _PAGE_DIRTY,
.set = "dirty",
.clear = " ",
}, {
.mask = _PAGE_ACCESSED,
.val = _PAGE_ACCESSED,
.set = "accessed",
.clear = " ",
}, {
.mask = _PAGE_WRITETHRU,
.val = _PAGE_WRITETHRU,
.set = "write through",
.clear = " ",
}, {
.mask = _PAGE_NO_CACHE,
.val = _PAGE_NO_CACHE,
.set = "no cache",
.clear = " ",
}, {
.mask = _PAGE_SPECIAL,
.val = _PAGE_SPECIAL,
.set = "special",
}
};
struct pgtable_level pg_level[5] = {
{ /* pgd */
.flag = flag_array,
.num = ARRAY_SIZE(flag_array),
}, { /* p4d */
.flag = flag_array,
.num = ARRAY_SIZE(flag_array),
}, { /* pud */
.flag = flag_array,
.num = ARRAY_SIZE(flag_array),
}, { /* pmd */
.flag = flag_array,
.num = ARRAY_SIZE(flag_array),
}, { /* pte */
.flag = flag_array,
.num = ARRAY_SIZE(flag_array),
},
};