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Most ITS commands do operate on a collection object, and require a SYNC command to be performed on that collection in order to guarantee the execution of the first command. With GICv4 ITS, another set of commands perform similar operations on a VPE object, and a VSYNC operations must be executed to guarantee their execution. Given the similarities (post a command, perform a synchronization operation on a sync object), it makes sense to reuse the same mechanism for both class of commands. Let's start with turning its_send_single_command into a huge macro that performs the bulk of the work, and a set of helpers that make this macro usable for the GICv3 ITS commands. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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.