IOMMU for Renesas IPMMU/IPMMUI

modulename: shmobile-iommu.ko

configname: CONFIG_SHMOBILE_IOMMU

Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>IOMMU for Renesas IPMMU/IPMMUI
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Support for Renesas IPMMU/IPMMUI. This option enables
remapping of DMA memory accesses from all of the IP blocks
on the ICB.

Warning: Drivers (including userspace drivers of UIO
devices) of the IP blocks on the ICB *must* use addresses
allocated from the IPMMU (iova) for DMA with this option
enabled.

If unsure, say N.

source code: