To use x2apic mode in the CPU's which support x2APIC enhancements or
to support platforms with CPU's having > 8 bit APIC ID, say Y.
+config ROCKCHIP_IOMMU
+ bool "Rockchip IOMMU Support"
+ depends on ARCH_ROCKCHIP
+ select IOMMU_API
+ help
+ Support for the IOMMU(System MMU) of Rockchip rk32xx application
+ processor family. This enables H/W multimedia accellerators to see
+ non-linear physical memory chunks as a linear memory in their
+ address spaces
+
+ If unsure, say N here.
+
+config ROCKCHIP_IOVMM
+ bool "IO Virtual Memory Manager for Rockcihp IOMMUs"
+ select GENERIC_ALLOCATOR
+ depends on ROCKCHIP_IOMMU
+ default n
+ help
+ Supporting the users of Rockchip IOMMU for allocating and mapping
+ an IO virtual memory region with a physical memory region
+ and managing the allocated virtual memory regions.
+
+config ROCKCHIP_IOMMU_DEBUG
+ bool "Debugging log for Rockchip IOMMU"
+ depends on ROCKCHIP_IOMMU
+ help
+ Select this to see the detailed log message that shows what
+ happens in the IOMMU driver
+
+ Say N unless you need kernel log message for IOMMU debugging
+
# OMAP IOMMU support
config OMAP_IOMMU
bool "OMAP IOMMU Support"