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x86/kconfig: Remove outdated reference to Intel CPUs in CONFIG_SWIOTLB 

Deleted the no longer valid example of which x86 CPUs lack a
hardware IOMMU, and moved the "If unsure..." statement to a new
line to follow the style of surrounding options.

Signed-off-by: Joe Millenbach <jmillenbach@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: team-fjord@googlegroups.com
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1346632700-29113-1-git-send-email-jmillenbach@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Joe Millenbach 2012-09-02 17:38:20 -07:00 committed by Ingo Molnar
parent 5b716ac728
commit 4454d32749
1 changed files with 4 additions and 4 deletions
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arch/x86/Kconfig
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@ -746,10 +746,10 @@ config SWIOTLB
def_bool y if X86_64 def_bool y if X86_64
---help--- ---help---
Support for software bounce buffers used on x86-64 systems Support for software bounce buffers used on x86-64 systems
which don't have a hardware IOMMU (e.g. the current generation which don't have a hardware IOMMU. Using this PCI devices
of Intel's x86-64 CPUs). Using this PCI devices which can only which can only access 32-bits of memory can be used on systems
access 32-bits of memory can be used on systems with more than with more than 3 GB of memory.
3 GB of memory. If unsure, say Y. If unsure, say Y.
config IOMMU_HELPER config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU) def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)