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This driver supports communication with secure processor subsystem over rpmsg and ungerlying glink transport layer. The communication is based on using shared memory and interrupts. This driver exposes interface to user space. Migrate from using glink api to rpmsg api: - removed not used glink functionality - removed not used kernel api to spcom functionality - implemented rpmsg driver registration for each new spcom channel open/close/tx/rx/poll flows fixes: - rpmsg_abort flag introduced to synchronize close() of a channel with pending sending or receiving data from the channel - tx implemented as rpmsg_trysend() every 10ms (timeout_msec total) - poll imlemented link up/down events as first/last rpmsg device probed/removed - locking ION api replaced by dma-buf: ION api depricated. This change implements following functionality: Lock/unlock shared buffer by reference counting on underline dma-buf. Translation user allocated shared buffer virtual address to physical address (to enable SPU access to the buffer). Change-Id: I28d704b18a3b0de9711ff3235c3f5551e7302557 Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.