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>
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@ -3548,7 +3548,8 @@ static void flush_unmaps(struct deferred_flush_data *flush_data)
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/* On real hardware multiple invalidations are expensive */
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if (cap_caching_mode(iommu->cap))
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iommu_flush_iotlb_psi(iommu, domain,
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iova->pfn_lo, iova_size(iova),
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mm_to_dma_pfn(iova->pfn_lo),
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mm_to_dma_pfn(iova_size(iova)),
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!freelist, 0);
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else {
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mask = ilog2(mm_to_dma_pfn(iova_size(iova)));
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