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-rw-r--r--arch/powerpc/Kconfig16
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index cdc9a6ff4be..93a61898b25 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -42,6 +42,10 @@ config GENERIC_HARDIRQS
bool
default y
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ bool
+ default y
+
config HAVE_SETUP_PER_CPU_AREA
def_bool PPC64
@@ -296,9 +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"