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| author | Huang Pei <huangpei@loongson.cn> | 2021-11-25 13:59:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-01 11:04:53 +0300 |
| commit | a6a75b537a4f612bf51ac40d86ce652d42fc2f4b (patch) | |
| tree | 023acd9af9b7b2fdfe781d2421e13fff8aca0c27 /arch/mips | |
| parent | ea3c7588e16f62080d20fa067cfa9188d37dd329 (diff) | |
| download | linux-a6a75b537a4f612bf51ac40d86ce652d42fc2f4b.tar.xz | |
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/mips')
| -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 a917d408d27d..23654ccdbfb1 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -3189,7 +3189,7 @@ config STACKTRACE_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 config MIPS_AUTO_PFN_OFFSET |