x86, AMD IOMMU: add Kconfig entry
This patch adds the Kconfig entry for the AMD IOMMU driver.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: Sebastian.Biemueller@amd.com
Cc: robert.richter@amd.com
Cc: joro@8bytes.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e0edaaa..5a82f18 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -549,6 +549,13 @@
Calgary anyway, pass 'iommu=calgary' on the kernel command line.
If unsure, say Y.
+config AMD_IOMMU
+ bool "AMD IOMMU support"
+ select SWIOTL
+ depends on X86_64 && PCI
+ help
+ Select this to get support for AMD IOMMU hardware in your system.
+
# need this always selected by IOMMU for the VIA workaround
config SWIOTLB
bool