Commit 95dbdf4f authored Apr 17, 2017 by Nicholas Piggin Committed by Michael Ellerman Apr 19, 2017

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: 1a472c9d ("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>

parent be77e999

arch/powerpc/kernel/mce_power.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -72,10 +72,14 @@ void __flush_tlb_power8(unsigned int action)

		void __flush_tlb_power9(unsigned int action)
		{
		unsigned int num_sets;

		if (radix_enabled())
		flush_tlb_206(POWER9_TLB_SETS_RADIX, action);
		num_sets = POWER9_TLB_SETS_RADIX;
		else
		num_sets = POWER9_TLB_SETS_HASH;

		flush_tlb_206(POWER9_TLB_SETS_HASH, action);
		flush_tlb_206(num_sets, action);
		}

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