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Author SHA1 Message Date
Christoph Hellwig bc3ec75de5 dma-mapping: merge direct and noncoherent ops 
All the cache maintainance is already stubbed out when not enabled,
but merging the two allows us to nicely handle the case where
cache maintainance is required for some devices, but not others.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
 2018-09-20 09:01:15 +02:00
Christoph Hellwig cf65a0f6f6 dma-mapping: move all DMA mapping code to kernel/dma 
Currently the code is split over various files with dma- prefixes in the
lib/ and drives/base directories, and the number of files keeps growing.
Move them into a single directory to keep the code together and remove
the file name prefixes.  To match the irq infrastructure this directory
is placed under the kernel/ directory.

Signed-off-by: Christoph Hellwig <hch@lst.de>
 2018-06-14 08:50:37 +02:00