From 95dbdf4fa09823e35b29eab8f7093984daa6a913 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Mon, 17 Apr 2017 00:21:19 +1000 Subject: [PATCH] powerpc/64s: Minor fix for MCE TLB flush for radix The TLB flush for radix first flushes TLB for radix configuration, then flushes for hash configuration. The second flush is unnecessary but does not affect correctness. Fixes: 1a472c9dba6b9 ("powerpc/mm/radix: Add tlbflush routines") Signed-off-by: Nicholas Piggin Reviewed-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/mce_power.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index de242b4bbd20..f913139bb0c2 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -72,10 +72,14 @@ void __flush_tlb_power8(unsigned int action) void __flush_tlb_power9(unsigned int action) { - if (radix_enabled()) - flush_tlb_206(POWER9_TLB_SETS_RADIX, action); + unsigned int num_sets; - flush_tlb_206(POWER9_TLB_SETS_HASH, action); + if (radix_enabled()) + num_sets = POWER9_TLB_SETS_RADIX; + else + num_sets = POWER9_TLB_SETS_HASH; + + flush_tlb_206(num_sets, action); }