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-rw-r--r--arch/x86/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 249d1e0..862adb9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -586,6 +586,16 @@ config AMD_IOMMU
your BIOS for an option to enable it or if you have an IVRS ACPI
table.
+config AMD_IOMMU_STATS
+ bool "Export AMD IOMMU statistics to debugfs"
+ depends on AMD_IOMMU
+ select DEBUG_FS
+ help
+ This option enables code in the AMD IOMMU driver to collect various
+ statistics about whats happening in the driver and exports that
+ information to userspace via debugfs.
+ If unsure, say N.
+
# need this always selected by IOMMU for the VIA workaround
config SWIOTLB
def_bool y if X86_64
@@ -599,6 +609,9 @@ 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 && DEBUG_KERNEL && EXPERIMENTAL
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