powerpc/32: always populate page tables for Abatron BDI.

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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index c4b0eb5..a000768 100644 (file)
--- 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);
        }
 }