[PATCHv4 0/2] CMA for arm64

[Laura Abbott]

This adds support for CMA in arm64

v4: Minor typos pointed out by Will. Changed the support for NULL devices
to be a WARN on NULL device.

v3: Fix a missed line to actually set the dma_handle correctly

v2: Move the dma contiguous functions from swiotlb to arm64 directly

 arch/arm64/Kconfig                      |    1 +
 arch/arm64/include/asm/dma-contiguous.h |   29 +++++++++++++++++++++++++
 arch/arm64/mm/dma-mapping.c             |   35 +++++++++++++++++++++++++++++-
 arch/arm64/mm/init.c                    |    3 ++
 4 files changed, 66 insertions(+), 2 deletions(-)

Thanks,
Laura