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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: 1a472c9dba ("powerpc/mm/radix: Add tlbflush routines")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-04-17 00:21:19 +10:00 committed by Michael Ellerman
parent be77e999e3
commit 95dbdf4fa0
1 changed files with 7 additions and 3 deletions
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10
arch/powerpc/kernel/mce_power.c
View File

@ -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);
}