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AMD IOMMU: add Kconfig entry for statistic collection code

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Impact: adds new Kconfig entry

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2008-12-11 19:00:12 +01:00
parent a4e267c88b
commit 2e117604a4
1 changed files with 10 additions and 0 deletions
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10
arch/x86/Kconfig
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@ -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