Commit-ID: 2be69c79e9a46a554fc3ff57d886e65e7a73eb72 Gitweb: http://git.kernel.org/tip/2be69c79e9a46a554fc3ff57d886e65e7a73eb72 Author: Joerg Roedel <joerg.roedel@xxxxxxx> AuthorDate: Fri, 22 May 2009 12:15:49 +0200 Committer: Joerg Roedel <joerg.roedel@xxxxxxx> CommitDate: Thu, 28 May 2009 17:55:33 +0200 x86/iommu: add IOMMU_STRESS Kconfig entry This Kconfig option is intended to enable various code paths or parameters in IOMMU implementations to stress test the code and/or the hardware. This can also be done by disabling optimizations in the code when this option is switched on. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx> Cc: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> --- arch/x86/Kconfig.debug | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 5865712..33fac6b 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -159,6 +159,14 @@ config IOMMU_DEBUG options. See Documentation/x86_64/boot-options.txt for more details. +config IOMMU_STRESS + bool "Enable IOMMU stress-test mode" + ---help--- + This option disables various optimizations in IOMMU related + code to do real stress testing of the IOMMU code. This option + will cause a performance drop and should only be enabled for + testing. + config IOMMU_LEAK bool "IOMMU leak tracing" depends on IOMMU_DEBUG && DMA_API_DEBUG -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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