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authorHuang Pei <huangpei@loongson.cn>2021-11-25 11:59:48 +0100
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2021-11-25 16:52:11 +0100
commit41ce097f714401e6ad8f3f5eb30d7f91b0b5e495 (patch)
treecb11f8f41066aa355c150563ccf2f992ad73d4bc /arch/mips
parentMIPS: loongson64: fix FTLB configuration (diff)
downloadlinux-41ce097f714401e6ad8f3f5eb30d7f91b0b5e495.tar.xz
linux-41ce097f714401e6ad8f3f5eb30d7f91b0b5e495.zip
MIPS: use 3-level pgtable for 64KB page size on MIPS_VA_BITS_48
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>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index de60ad190057..0215dc1529e9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3097,7 +3097,7 @@ 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