PCI PRI support

configname: CONFIG_PCI_PRI

Linux Kernel Configuration
└─>Bus options (PCI etc.)
└─>PCI PRI support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
PRI is the PCI Page Request Interface. It allows PCI devices that are
behind an IOMMU to recover from page faults.

If unsure, say N.

selects
CONFIG_PCI_ATS

depends
CONFIG_PCI