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Date: Tue, 04 Nov 2008 20:28:52 +0400 From: Constantin Baranov <const@...as.ru> To: Ingo Molnar <mingo@...hat.com> CC: linux-kernel@...r.kernel.org Subject: [PATCH 2.6.28-rc3] x86: make CONFIG_SWIOTLB configurable Make it possible to enable individually the CONFIG_SWIOTLB option. This is useful for Intel x86_64 systems without DMAR support. Signed-off-by: Constantin Baranov <const@...as.ru> --- Tested on my system based on Gigabyte GA-EP45-DS3 mainboard (P45 chipset) with 8 GiB of RAM. Currently I need to enable either CONFIG_GART_IOMMU or CONFIG_AMD_IOMMU for proper work. Both are AMD specific. When the patch applied, just CONFIG_SWIOTLB is sufficient. arch/x86/Kconfig | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- linux-2.6.28-rc3/arch/x86/Kconfig 2008-11-04 17:32:29.846408880 +0400 +++ linux-2.6.28-rc3-swiotlb/arch/x86/Kconfig 2008-11-04 18:11:47.796408084 +0400 @@ -566,7 +566,9 @@ config AMD_IOMMU # need this always selected by IOMMU for the VIA workaround config SWIOTLB - bool + bool "Support for software bounce buffers" + depends on X86_64 && EXPERIMENTAL + default n help Support for software bounce buffers used on x86-64 systems which don't have a hardware IOMMU (e.g. the current generation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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