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Message-ID: <1229350685-3816-9-git-send-email-joerg.roedel@amd.com>
Date: Mon, 15 Dec 2008 15:17:51 +0100
From: Joerg Roedel <joerg.roedel@....com>
To: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
CC: Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 08/22] AMD IOMMU: add Kconfig entry for statistic collection code
Impact: adds new Kconfig entry
Signed-off-by: Joerg Roedel <joerg.roedel@....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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