diff options
| author | Huang Pei <huangpei@loongson.cn> | 2021-11-25 18:59:48 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-08 08:46:49 +0100 |
| commit | fa0255f14ae773af8248fa764c888bce6bd49799 (patch) | |
| tree | 9464781efb1c46f5e8eaaf6aed7919c12f00f12d /arch | |
| parent | 63e8aabe1fa8a294c6cec8fcd1f7f3e4b529511d (diff) | |
MIPS: use 3-level pgtable for 64KB page size on MIPS_VA_BITS_48
[ Upstream commit 41ce097f714401e6ad8f3f5eb30d7f91b0b5e495 ]
It hangup when booting Loongson 3A1000 with BOTH
CONFIG_PAGE_SIZE_64KB and CONFIG_MIPS_VA_BITS_48, that it turn
out to use 2-level pgtable instead of 3-level. 64KB page size
with 2-level pgtable only cover 42 bits VA, use 3-level pgtable
to cover all 48 bits VA(55 bits)
Fixes: 1e321fa917fb ("MIPS64: Support of at least 48 bits of SEGBITS)
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 85afd6b4297b..45a5801ff467 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2990,7 +2990,7 @@ config HAVE_LATENCYTOP_SUPPORT config PGTABLE_LEVELS int default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 - default 3 if 64BIT && !PAGE_SIZE_64KB + default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48) default 2 source "init/Kconfig" |