[PATCH 4/9] select IOMMU_API when DMAR and/or AMD_IOMMU is selected

[Joerg Roedel <joerg.roedel@amd.com>]

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>
---
 arch/ia64/Kconfig     |    3 +++
 arch/x86/Kconfig      |    3 +++
 drivers/base/Makefile |    1 +
 3 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 6bd91ed..6a7b0c9 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -687,3 +687,6 @@ config IRQ_PER_CPU
 
 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 ac22bb7..b9f7187 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -580,6 +580,9 @@ config SWIOTLB
 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 && BROKEN
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-$(CONFIG_FW_LOADER)	+= firmware_class.o
 obj-$(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
-- 
1.5.6.4