[PATCH] powerpc/8xx: Fix permanently mapped IMMR region.

Christophe Leroy christophe.leroy at c-s.fr
Wed Nov 20 04:49:48 AEDT 2019


Michael Ellerman <mpe at ellerman.id.au> a écrit :

> Christophe Leroy <christophe.leroy at c-s.fr> writes:
>> When not using large TLBs, the IMMR region is still
>> mapped as a whole block in the FIXMAP area.
>>
>> Do not remove pages mapped in the FIXMAP region when
>> initialising paging.
>>
>> Properly report that the IMMR region is block-mapped even
>> when not using large TLBs.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
>> ---
>>  arch/powerpc/mm/mem.c        |  8 --------
>>  arch/powerpc/mm/nohash/8xx.c | 13 +++++++------
>>  2 files changed, 7 insertions(+), 14 deletions(-)
>
> This blows up pmac32_defconfig + qemu mac99 for me with:

Ok, then there is still something I have not understood about fixmap.  
I'll look at it next week

Christophe



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