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    Subject[PATCH v4 05/16] powerpc/32: always populate page tables for Abatron BDI.
    Date
    When CONFIG_BDI_SWITCH is set, the page tables have to be populated
    allthough large TLBs are used, because the BDI switch knows nothing
    about those large TLBs which are handled directly in TLB miss logic.

    Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
    ---
    arch/powerpc/mm/pgtable_32.c | 5 ++++-
    1 file changed, 4 insertions(+), 1 deletion(-)

    diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
    index 2bf9bf8867d4..f54922f0d792 100644
    --- a/arch/powerpc/mm/pgtable_32.c
    +++ b/arch/powerpc/mm/pgtable_32.c
    @@ -263,7 +263,10 @@ void __init mapin_ram(void)
    if (base >= top)
    continue;
    base = mmu_mapin_ram(base, top);
    - __mapin_ram_chunk(base, top);
    + if (IS_ENABLED(CONFIG_BDI_SWITCH))
    + __mapin_ram_chunk(reg->base, top);
    + else
    + __mapin_ram_chunk(base, top);
    }
    }

    --
    2.13.3
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