[PATCH 08/22] AMD IOMMU: add Kconfig entry for statistic collection code

[Joerg Roedel]

Impact: adds new Kconfig entry

Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
 arch/x86/Kconfig |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b9f7187..de65e30 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -567,6 +567,16 @@ 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
 	bool
-- 
1.5.6.4


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