blackbird-op-linux/lib/dma-noncoherent.c, branch masterBlackbird™ Linux sources for OpenPOWERhttps://git.raptorcs.com/git/blackbird-op-linux/atom?h=master2018-06-14T06:50:37+00:00dma-mapping: move all DMA mapping code to kernel/dma2018-06-14T06:50:37+00:00Christoph Hellwighch@lst.de2018-06-12T17:01:45+00:00urn:sha1:cf65a0f6f6ff7631ba0ac0513a14ca5b65320d80
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>
dma-mapping: provide a generic dma-noncoherent implementation2018-05-19T06:46:12+00:00Christoph Hellwighch@lst.de2018-04-16T13:24:51+00:00urn:sha1:782e6769c0df744e773dc2acff71c974b3bba4e9
Add a new dma_map_ops implementation that uses dma-direct for the
address mapping of streaming mappings, and which requires arch-specific
implemenations of coherent allocate/free.
Architectures have to provide flushing helpers to ownership trasnfers
to the device and/or CPU, and can provide optional implementations of
the coherent mmap functionality, and the cache_flush routines for
non-coherent long term allocations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>