diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-06-29 11:17:19 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-27 00:01:31 +1000 |
| commit | e54e30bca40233139290aecfce932dea9b996516 (patch) | |
| tree | d55cb16038343867741a37fb66caf7320dfeda57 /arch/powerpc/mm/ptdump/ptdump.c | |
| parent | 846feeace51bce13f5c645d5bf162455b89841fd (diff) | |
| download | linux-e54e30bca40233139290aecfce932dea9b996516.tar.bz2 | |
powerpc/ptdump: Refactor update of pg_state
In note_page(), the pg_state is updated the same way in two places.
Add note_page_update_state() to do it.
Also include the display of boundary markers there as it is missing
"no level" leg, leading to a mismatch when the first two markers
are at the same address and the first displayed area uses that
address.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a284a809f01c705bbaab303b06fda216f147a99a.1593429426.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/mm/ptdump/ptdump.c')
| -rw-r--r-- | arch/powerpc/mm/ptdump/ptdump.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c index 20a039867934..c911cd757f7d 100644 --- a/arch/powerpc/mm/ptdump/ptdump.c +++ b/arch/powerpc/mm/ptdump/ptdump.c @@ -199,6 +199,24 @@ 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, unsigned long page_size) +{ + u64 flag = val & pg_level[level].mask; + u64 pa = val & PTE_RPN_MASK; + + st->level = level; + st->current_flags = flag; + st->start_address = addr; + st->start_pa = pa; + st->page_size = page_size; + + while (addr >= st->marker[1].start_address) { + st->marker++; + pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); + } +} + static void note_page(struct pg_state *st, unsigned long addr, unsigned int level, u64 val, unsigned long page_size) { @@ -207,12 +225,8 @@ static void note_page(struct pg_state *st, unsigned long addr, /* At first no level is set */ if (!st->level) { - st->level = level; - st->current_flags = flag; - st->start_address = addr; - st->start_pa = pa; - st->page_size = page_size; pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); + note_page_update_state(st, addr, level, val, page_size); /* * Dump the section of virtual memory when: * - the PTE flags from one entry to the next differs. @@ -244,15 +258,7 @@ static void note_page(struct pg_state *st, unsigned long addr, * Address indicates we have passed the end of the * current section of virtual memory */ - while (addr >= st->marker[1].start_address) { - st->marker++; - pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); - } - st->start_address = addr; - st->start_pa = pa; - st->page_size = page_size; - st->current_flags = flag; - st->level = level; + note_page_update_state(st, addr, level, val, page_size); } st->last_pa = pa; } |