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60e9069014d19db531e41ac98e6ff9eef43366e7
All other architectures do different cache operations depending on the dir parameter. Fix arm64 to do the same. This fixes udmabuf operations when syncing for read e.g. when the CPU reads back a V4L2 decoded frame buffer. Signed-off-by: John Cox <jc@kynesim.co.uk>
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.
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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