CONFIG_SWIOTLB's existing help information refers to "the current generation of Intel's x86-64 CPUs", but the statement is no longer true. After researching on Intel's ark site, I changed the statement to the also true "all Intel CPUs released before 2008".
Signed-off-by: Joe Millenbach <jmillenb...@gmail.com> Reviewed-by: Josh Triplett <j...@joshtriplett.org> --- arch/x86/Kconfig | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5bed94e..dadbfd6 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -755,10 +755,10 @@ config SWIOTLB def_bool y if X86_64 ---help--- Support for software bounce buffers used on x86-64 systems - which don't have a hardware IOMMU (e.g. the current generation - of Intel's x86-64 CPUs). Using this PCI devices which can only - access 32-bits of memory can be used on systems with more than - 3 GB of memory. If unsure, say Y. + which don't have a hardware IOMMU (e.g. all Intel CPUs released + before 2008). Using this PCI devices which can only access 32-bits + of memory can be used on systems with more than 3 GB of memory. If + unsure, say Y. config IOMMU_HELPER def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/