IOMMU Updates for Linux 3.11 A few updates this time, most important and exiciting (to me) is: * The new ARM SMMU driver. This is a common IOMMU driver that will hopefully be used in a lot of upcoming ARM chips. So the mess in the past where every SOC had its own IOMMU will be over. Besides that: * Some important fixes in the IOMMU unmap path. There are fixes in the common code and also in the AMD IOMMU driver. * Other random fixes