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powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm()

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With the optimisations introduced by commit a46cc7a908 ("powerpc/mm/radix:
Improve TLB/PWC flushes"), flush_tlb_mm() no longer flushes the page walk
cache with radix. Switch to using flush_all_mm() to ensure the pwc and tlb
are properly flushed on the nmmu.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Alistair Popple 2017-09-06 11:48:59 +10:00 committed by Michael Ellerman
parent 8d4e10e9ed
commit 2a31ad093b
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/powernv/npu-dma.c
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@ -549,7 +549,7 @@ static void mmio_invalidate(struct npu_context *npu_context, int va,
* Unfortunately the nest mmu does not support flushing specific
* addresses so we have to flush the whole mm.
*/
flush_tlb_mm(npu_context->mm);
flush_all_mm(npu_context->mm);
/*
* Loop over all the NPUs this process is active on and launch