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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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