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| author | Christoph Hellwig <hch@lst.de> | 2018-01-10 18:21:13 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-01-10 18:40:54 +0300 |
| commit | ea8c64ace86647260ec4255f483e5844d62af2df (patch) | |
| tree | 420f44f5f8c6839d96e814066cc6a8e80957bf01 /arch/x86/Kconfig | |
| parent | 10dac04c79b181b255a62f60919f29acc56277ac (diff) | |
| download | linux-ea8c64ace86647260ec4255f483e5844d62af2df.tar.xz | |
dma-mapping: move swiotlb arch helpers to a new header
phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only. Drivers are
not supposed to use these directly, but use the DMA API instead.
Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.
In the MIPS case the existing dma-coherent.h is reused for now as
untangling it will take a bit of work.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d4fc98c50378..f6f4328103c0 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -54,6 +54,7 @@ config X86 select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_KCOV if X86_64 + select ARCH_HAS_PHYS_TO_DMA select ARCH_HAS_PMEM_API if X86_64 # Causing hangs/crashes, see the commit that added this change for details. select ARCH_HAS_REFCOUNT |