| Message ID | 20211125105949.27147-4-huangpei@loongson.cn (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [1/4] MIPS: rework local_t operation on MIPS64 | expand |
On Thu, Nov 25, 2021 at 06:59:48PM +0800, Huang Pei wrote: > 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> > --- > arch/mips/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > 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 > -- > 2.20.1 applied to mips-fixes. Thomas.
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
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> --- arch/mips/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)