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authorJoerg Roedel <joerg.roedel@amd.com>2008-12-11 13:00:12 -0500
committerJoerg Roedel <joerg.roedel@amd.com>2009-01-03 08:11:57 -0500
commit2e117604a4e8f3f9cee4aec3373b0382159e152a (patch)
treee0691ee22ff5ff11fa1a6d2aefb4b1dccace62d6
parenta4e267c88b4acfc87ff2ab0cc8e9509878e9aaba (diff)
AMD IOMMU: add Kconfig entry for statistic collection code
Impact: adds new Kconfig entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
-rw-r--r--arch/x86/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 249d1e0824b5..f9998d276eb3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -586,6 +586,16 @@ config AMD_IOMMU
586 your BIOS for an option to enable it or if you have an IVRS ACPI 586 your BIOS for an option to enable it or if you have an IVRS ACPI
587 table. 587 table.
588 588
589config AMD_IOMMU_STATS
590 bool "Export AMD IOMMU statistics to debugfs"
591 depends on AMD_IOMMU
592 select DEBUG_FS
593 help
594 This option enables code in the AMD IOMMU driver to collect various
595 statistics about whats happening in the driver and exports that
596 information to userspace via debugfs.
597 If unsure, say N.
598
589# need this always selected by IOMMU for the VIA workaround 599# need this always selected by IOMMU for the VIA workaround
590config SWIOTLB 600config SWIOTLB
591 def_bool y if X86_64 601 def_bool y if X86_64