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IORT revision C introduced a mapping entry binding to describe ITS device ID mapping for SMMUv3 MSI interrupts. Enable the single mapping flag (ie that is used by SMMUv3 component for its special index mappings) for the SMMUv3 node in the IORT mapping API and add IORT code to handle special index mapping entry for the SMMUv3 IORT nodes to enable their MSI interrupts. In case the ACPICA for SMMUv3 device ID mapping is not ready, use the ACPICA version as a guard for function iort_get_id_mapping_index(). Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> [lorenzo.pieralisi@arm.com: patch split, typos fixing, rewrote the log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@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.