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When mapping the memory represented by a dma-buf into a device's address space, it might be desireable to map the memory with certain DMA attributes. Thus, introduce the dma_mapping_attrs field in the dma_buf_attachment structure so that when the memory is mapped with dma_buf_map_attachment, it is mapped with the desired DMA attributes. Bug: 133508579 Test: ion-unit-tests Change-Id: Ib2e5bafdc02ae31a58ce96a82d77cc508dd71bd4 Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> Signed-off-by: Sandeep Patil <sspatil@google.com> [surenb: cherry-picked from ACK 5.4 branch] Bug: 150611569 Test: build Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: I9a8b4f83a61bcff6e5d3ee2d7f4887875a9654ef
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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