BMC/Intel-BMC/linux.git/include/linux/dma-noncoherent.h, branch dev-4.18Intel OpenBMC Linux kernel source tree (mirror)https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.182018-05-19T06:46:12+00:00dma-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>