powerpc/powernv/npu: Move tlb flush before launching ATSD

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The nest MMU tlb flush needs to happen before the GPU translation
shootdown is launched to avoid the GPU refilling its tlb with stale
nmmu translations prior to the nmmu flush completing.

Fixes: 1ab66d1fba ("powerpc/powernv: Introduce address translation services for Nvlink2")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Alistair Popple 2017-08-11 16:22:56 +10:00 • committed by Michael Ellerman

parent de854e54d7

commit bab9f954aa

1 changed files with 6 additions and 6 deletions

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arch/powerpc/platforms/powernv/npu-dma.c

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