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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-07-08 16:49:42 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-08-25 13:35:48 +1000 |
| commit | cf98d2b6eea6a1b2c43f85680ad58fcc3ea9496b (patch) | |
| tree | fe68f714b50088fd9800f75e8d82f74584276aeb /arch/powerpc/mm/ptdump | |
| parent | 64b87b0c70e0fd28352895cba3c0a9631e0072dd (diff) | |
| download | linux-cf98d2b6eea6a1b2c43f85680ad58fcc3ea9496b.tar.gz linux-cf98d2b6eea6a1b2c43f85680ad58fcc3ea9496b.tar.bz2 linux-cf98d2b6eea6a1b2c43f85680ad58fcc3ea9496b.zip | |
powerpc/ptdump: Reduce level numbers by 1 in note_page() and add p4d level
Do the same as commit f8f0d0b6fa20 ("mm: ptdump: reduce level numbers
by 1 in note_page()") and add missing p4d level.
This will align powerpc to the users of generic ptdump.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d76495c574132b197b445a1f133755cca4b912a4.1625762906.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/mm/ptdump')
| -rw-r--r-- | arch/powerpc/mm/ptdump/8xx.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/mm/ptdump/book3s64.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/mm/ptdump/ptdump.c | 17 | ||||
| -rw-r--r-- | arch/powerpc/mm/ptdump/shared.c | 6 |
4 files changed, 21 insertions, 14 deletions
diff --git a/arch/powerpc/mm/ptdump/8xx.c b/arch/powerpc/mm/ptdump/8xx.c index 86da2a669680..fac932eb8f9a 100644 --- a/arch/powerpc/mm/ptdump/8xx.c +++ b/arch/powerpc/mm/ptdump/8xx.c @@ -75,8 +75,10 @@ static const struct flag_info flag_array[] = { }; struct pgtable_level pg_level[5] = { - { - }, { /* pgd */ + { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* p4d */ .flag = flag_array, .num = ARRAY_SIZE(flag_array), }, { /* pud */ diff --git a/arch/powerpc/mm/ptdump/book3s64.c b/arch/powerpc/mm/ptdump/book3s64.c index 14f73868db66..5ad92d9dc5d1 100644 --- a/arch/powerpc/mm/ptdump/book3s64.c +++ b/arch/powerpc/mm/ptdump/book3s64.c @@ -103,8 +103,10 @@ static const struct flag_info flag_array[] = { }; struct pgtable_level pg_level[5] = { - { - }, { /* pgd */ + { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* p4d */ .flag = flag_array, .num = ARRAY_SIZE(flag_array), }, { /* pud */ diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c index 3eb8732641da..fb531bc64fc5 100644 --- a/arch/powerpc/mm/ptdump/ptdump.c +++ b/arch/powerpc/mm/ptdump/ptdump.c @@ -58,7 +58,7 @@ struct pg_state { const struct addr_marker *marker; unsigned long start_address; unsigned long start_pa; - unsigned int level; + int level; u64 current_flags; bool check_wx; unsigned long wx_pages; @@ -188,10 +188,9 @@ static void note_prot_wx(struct pg_state *st, unsigned long addr) st->wx_pages += (addr - st->start_address) / PAGE_SIZE; } -static void note_page_update_state(struct pg_state *st, unsigned long addr, - unsigned int level, u64 val) +static void note_page_update_state(struct pg_state *st, unsigned long addr, int level, u64 val) { - u64 flag = val & pg_level[level].mask; + u64 flag = level >= 0 ? val & pg_level[level].mask : 0; u64 pa = val & PTE_RPN_MASK; st->level = level; @@ -206,12 +205,12 @@ static void note_page_update_state(struct pg_state *st, unsigned long addr, } static void note_page(struct pg_state *st, unsigned long addr, - unsigned int level, u64 val, unsigned long page_size) + int level, u64 val, unsigned long page_size) { - u64 flag = val & pg_level[level].mask; + u64 flag = level >= 0 ? val & pg_level[level].mask : 0; /* At first no level is set */ - if (!st->level) { + if (st->level == -1) { pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); note_page_update_state(st, addr, level, val); /* @@ -383,6 +382,7 @@ static int ptdump_show(struct seq_file *m, void *v) struct pg_state st = { .seq = m, .marker = address_markers, + .level = -1, .start_address = IS_ENABLED(CONFIG_PPC64) ? PAGE_OFFSET : TASK_SIZE, }; @@ -393,7 +393,7 @@ static int ptdump_show(struct seq_file *m, void *v) /* Traverse kernel page tables */ walk_pagetables(&st); - note_page(&st, 0, 0, 0, 0); + note_page(&st, 0, -1, 0, 0); return 0; } @@ -415,6 +415,7 @@ void ptdump_check_wx(void) struct pg_state st = { .seq = NULL, .marker = address_markers, + .level = -1, .check_wx = true, .start_address = IS_ENABLED(CONFIG_PPC64) ? PAGE_OFFSET : TASK_SIZE, }; diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c index c005fe041c18..03607ab90c66 100644 --- a/arch/powerpc/mm/ptdump/shared.c +++ b/arch/powerpc/mm/ptdump/shared.c @@ -68,8 +68,10 @@ static const struct flag_info flag_array[] = { }; struct pgtable_level pg_level[5] = { - { - }, { /* pgd */ + { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* p4d */ .flag = flag_array, .num = ARRAY_SIZE(flag_array), }, { /* pud */ |