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authorOmer Peleg <omer@cs.technion.ac.il>2016-04-20 11:33:11 +0300
committerDavid Woodhouse <David.Woodhouse@intel.com>2016-04-20 15:05:56 -0400
commitf5c0c08b1e0976cb493d503108f1b897ce58bc5d (patch)
treed2d9246fabfaddc9ba5de2b978c84c7dafe77512 /drivers/iommu
parentaa4732406e1290dd18a8d2078977996c152a4be7 (diff)
iommu/vt-d: correct flush_unmaps pfn usage
Change flush_unmaps() to correctly pass iommu_flush_iotlb_psi() dma addresses. (x86_64 mm and dma have the same size for pages at the moment, but this usage improves consistency.) Signed-off-by: Omer Peleg <omer@cs.technion.ac.il> [mad@cs.technion.ac.il: rebased and reworded the commit message] Signed-off-by: Adam Morrison <mad@cs.technion.ac.il> Reviewed-by: Shaohua Li <shli@fb.com> Reviewed-by: Ben Serebrin <serebrin@google.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/intel-iommu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index a64b6f3b9a66..6aacfa4eee2a 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3548,7 +3548,8 @@ static void flush_unmaps(struct deferred_flush_data *flush_data)
/* On real hardware multiple invalidations are expensive */
if (cap_caching_mode(iommu->cap))
iommu_flush_iotlb_psi(iommu, domain,
- iova->pfn_lo, iova_size(iova),
+ mm_to_dma_pfn(iova->pfn_lo),
+ mm_to_dma_pfn(iova_size(iova)),
!freelist, 0);
else {
mask = ilog2(mm_to_dma_pfn(iova_size(iova)));