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Subject[PATCH 08/22] AMD IOMMU: add Kconfig entry for statistic collection code
Date
Impact: adds new Kconfig entry

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
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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