From: Alistair Popple Date: Wed, 6 Sep 2017 01:48:59 +0000 (+1000) Subject: powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm() X-Git-Tag: v4.15-rc1~13^2~21 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=2a31ad093bb1b8c1f1e04cbe222ad17bc09c4534;p=linux-block.git powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm() 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 Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index 2cb6cbea4b3b..2fff9a65975b 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -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