From 2a31ad093bb1b8c1f1e04cbe222ad17bc09c4534 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Wed, 6 Sep 2017 11:48:59 +1000
Subject: [PATCH] powerpc/powernv/npu: Use flush_all_mm() instead of
flush_tlb_mm()
References: bsc#1055120
Patch-mainline: v4.15-rc1
Git-commit: 2a31ad093bb1b8c1f1e04cbe222ad17bc09c4534
With the optimisations introduced by commit a46cc7a90f ("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>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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
--
2.19.2