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Due to a mismerge a bunch of prototypes that should have moved to
dma-map-ops.h are still in dma-mapping.h, fix that up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Use and entirely separate code path for the DMA_ATTR_NO_KERNEL_MAPPING
path. This avoids any confusion about the ret type, and avoids lots of
attr checks and helpers that can be significantly simplified now.
It also ensures that common handling is applied to architetures still
using the arch alloc/free hooks.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Move more nitty gritty DMA implementation details into the common
internal header.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Most of dma-debug.h is not required by anything outside of kernel/dma.
Move the four declarations needed by dma-mappin.h or dma-ops providers
into dma-mapping.h and dma-map-ops.h, and move the remainder of the
file to kernel/dma/debug.h.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Just provide a weak default definition of dma_contiguous_early_fixup and
let arm override it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Merge dma-contiguous.h into dma-map-ops.h, after removing the comment
describing the contiguous allocator into kernel/dma/contigous.c.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Split out all the bits that are purely for dma_map_ops implementations
and related code into a new <linux/dma-map-ops.h> header so that they
don't get pulled into all the drivers. That also means the architecture
specific <asm/dma-mapping.h> is not pulled in by <linux/dma-mapping.h>
any more, which leads to a missing includes that were pulled in by the
x86 or arm versions in a few not overly portable drivers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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