AMD IOMMU: move TLB flushing to the map/unmap helper functions
This patch moves the invocation of the flushing functions to the map/unmap helpers because its common code in all dma_ops relevant mapping/unmapping code. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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