From d41ab09896dcfc517a7aa050b5c8563b5682a71d Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 21 Dec 2015 18:20:03 +0100 Subject: [PATCH] iommu/amd: Flush iommu tlb in dma_ops_free_addresses Instead of setting need_flush, do the flush directly in dma_ops_free_addresses. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index a26cd76588cd..62a407947b02 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1648,8 +1648,10 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom, return; #endif - if ((address >> APERTURE_RANGE_SHIFT) >= dom->next_index) - dom->need_flush = true; + if (address + pages > range->next_bit) { + domain_flush_tlb(&dom->domain); + domain_flush_complete(&dom->domain); + } address = (address % APERTURE_RANGE_SIZE) >> PAGE_SHIFT; -- 2.34.1