diff mbox series

[v4,05/16] powerpc/32: always populate page tables for Abatron BDI.

Message ID 133a78db72f9a053c249574390491620e974a826.1550692943.git.christophe.leroy@c-s.fr (mailing list archive)
State Superseded
Headers show
Series powerpc/32: Use BATs/LTLBs for STRICT_KERNEL_RWX | expand

Checks

Context Check Description
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snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 11 lines checked

Commit Message

Christophe Leroy Feb. 21, 2019, 8:04 a.m. UTC
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 mbox series

Patch

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);
 	}
 }