select IOMMU_API when DMAR and/or AMD_IOMMU is selected
These two IOMMUs can implement the current version of this API. So
select the API if one or both of these IOMMU drivers is selected.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7fa8f61..3d31636 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -687,3 +687,6 @@
config IOMMU_HELPER
def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
+
+config IOMMU_API
+ def_bool (DMAR)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 249d1e0..4737435 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -599,6 +599,9 @@
config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+config IOMMU_API
+ def_bool (AMD_IOMMU || DMAR)
+
config MAXSMP
bool "Configure Maximum number of SMP Processors and NUMA Nodes"
depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index c666373..b5b8ba5 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -11,6 +11,7 @@
obj-$(CONFIG_NUMA) += node.o
obj-$(CONFIG_MEMORY_HOTPLUG_SPARSE) += memory.o
obj-$(CONFIG_SMP) += topology.o
+obj-$(CONFIG_IOMMU_API) += iommu.o
ifeq ($(CONFIG_SYSFS),y)
obj-$(CONFIG_MODULES) += module.o
endif