evie/android_kernel_oneplus_msm8998
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Author SHA1 Message Date
Olav Haugan
87e6f73b29 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>
 2016-03-22 11:04:34 -07:00