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| author | Christoph Hellwig | 2018-05-09 06:53:49 +0200 |
|---|---|---|
| committer | Christoph Hellwig | 2018-05-09 06:56:08 +0200 |
| commit | f616ab59c294b6ea6efa94f6139ea3eda2f52be0 (patch) | |
| tree | 7433ad06ac074cb3c94196bab89615e66c0c86a8 /arch/x86/Kconfig | |
| parent | scatterlist: move the NEED_SG_DMA_LENGTH config symbol to lib/Kconfig (diff) | |
| download | kernel-qcow2-linux-f616ab59c294b6ea6efa94f6139ea3eda2f52be0.tar.gz kernel-qcow2-linux-f616ab59c294b6ea6efa94f6139ea3eda2f52be0.tar.xz kernel-qcow2-linux-f616ab59c294b6ea6efa94f6139ea3eda2f52be0.zip | |
dma-mapping: move the NEED_DMA_MAP_STATE config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed. Note that we now also always select it when CONFIG_DMA_API_DEBUG
is select, which fixes some incorrect checks in a few network drivers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 9cbadd6ba27b..06eea9bffecb 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -28,6 +28,7 @@ config X86_64 select ARCH_USE_CMPXCHG_LOCKREF select HAVE_ARCH_SOFT_DIRTY select MODULES_USE_ELF_RELA + select NEED_DMA_MAP_STATE select X86_DEV_DMA_OPS select ARCH_HAS_SYSCALL_WRAPPER @@ -236,10 +237,6 @@ config ARCH_MMAP_RND_COMPAT_BITS_MAX config SBUS bool -config NEED_DMA_MAP_STATE - def_bool y - depends on X86_64 || INTEL_IOMMU || DMA_API_DEBUG || SWIOTLB - config GENERIC_ISA_DMA def_bool y depends on ISA_DMA_API @@ -925,6 +922,7 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT # need this always selected by IOMMU for the VIA workaround config SWIOTLB def_bool y if X86_64 + select NEED_DMA_MAP_STATE ---help--- Support for software bounce buffers used on x86-64 systems which don't have a hardware IOMMU. Using this PCI devices |