diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index ff755398ce2..93a61898b25 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -300,9 +300,19 @@ config IOMMU_VMERGE config IOMMU_HELPER def_bool PPC64 +config SWIOTLB + bool "SWIOTLB support" + default n + select IOMMU_HELPER + ---help--- + Support for IO bounce buffering for systems without an IOMMU. + This allows us to DMA to the full physical address space on + platforms where the size of a physical address is larger + than the bus address. Not all platforms support this. + config PPC_NEED_DMA_SYNC_OPS def_bool y - depends on NOT_COHERENT_CACHE + depends on (NOT_COHERENT_CACHE || SWIOTLB) config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" |