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@@ -586,6 +586,16 @@ config AMD_IOMMU
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your BIOS for an option to enable it or if you have an IVRS ACPI
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your BIOS for an option to enable it or if you have an IVRS ACPI
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table.
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table.
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+config AMD_IOMMU_STATS
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+ bool "Export AMD IOMMU statistics to debugfs"
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+ depends on AMD_IOMMU
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+ select DEBUG_FS
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+ help
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+ This option enables code in the AMD IOMMU driver to collect various
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+ statistics about whats happening in the driver and exports that
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+ information to userspace via debugfs.
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+ If unsure, say N.
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+
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# need this always selected by IOMMU for the VIA workaround
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# need this always selected by IOMMU for the VIA workaround
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config SWIOTLB
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config SWIOTLB
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def_bool y if X86_64
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def_bool y if X86_64
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Joerg Roedel