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f0edfea8ef
The dma remap code only makes sense for not cache coherent architectures (or possibly the corner case of highmem CMA allocations) and currently is only used by arm, arm64, csky and xtensa. Split it out into a separate file with a separate Kconfig symbol, which gets the right copyright notice given that this code was written by Laura Abbott working for Code Aurora at that point. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Laura Abbott <labbott@redhat.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
57 lines
777 B
Text
57 lines
777 B
Text
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config HAS_DMA
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bool
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depends on !NO_DMA
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default y
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config NEED_SG_DMA_LENGTH
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bool
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config NEED_DMA_MAP_STATE
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bool
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config ARCH_DMA_ADDR_T_64BIT
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def_bool 64BIT || PHYS_ADDR_T_64BIT
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config ARCH_HAS_DMA_COHERENCE_H
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bool
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config HAVE_GENERIC_DMA_COHERENT
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bool
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config ARCH_HAS_SYNC_DMA_FOR_DEVICE
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bool
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config ARCH_HAS_SYNC_DMA_FOR_CPU
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bool
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select NEED_DMA_MAP_STATE
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config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
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bool
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config ARCH_HAS_DMA_COHERENT_TO_PFN
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bool
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config ARCH_HAS_DMA_MMAP_PGPROT
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bool
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config DMA_DIRECT_OPS
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bool
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depends on HAS_DMA
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config DMA_NONCOHERENT_CACHE_SYNC
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bool
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depends on DMA_DIRECT_OPS
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config DMA_VIRT_OPS
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bool
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depends on HAS_DMA
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config SWIOTLB
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bool
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select DMA_DIRECT_OPS
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select NEED_DMA_MAP_STATE
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config DMA_REMAP
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depends on MMU
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bool
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