commit ff0116ece408ef7f992d6873603b51d585f50fdf
author Olav Haugan <ohaugan@codeaurora.org> Thu May 28 17:21:45 2015 -0700
committer Patrick Daly <pdaly@codeaurora.org> Mon Nov 07 18:54:44 2016 -0800
tree a38710275a1a2152a0bd606d0deee3259902de99
parent a757a8aa73b3c788972b67e3ee6eef9ab7246719

iommu: Add support for delayed unmapping of ion/dma_buf buffer

Add new APIs to allow clients to map and unmap dma_buffers created by
ION. The call to the unmap API will not actually do the unmapping from the
IOMMU. The unmapping will occur when the ION/dma_buf buffer is actually
freed. This behavior can be disabled with DMA_ATTR_NO_DELAYED_UNMAP

Change-Id: Ic4dbd3b582eb0388020c650cab5fbb1dad67ae81
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>