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[Why] Commands will be considered a stable ABI between driver and firmware. Commands are also split between DC commands, DAL feature commands, and VBIOS commands. Commands are currently not designated to a specific ID and the enum does not provide a stable ABI. We currently group all of these into a single command type of 8-bits. With the stable ABI consideration in mind it's not unreasonable to run out of command IDs. For cleaner separation and versioning split the commands into a main type and a subtype. [How] For commands where performance matters (like reg sequences) these are still considered main commands. Sub commands will be split by ownership/feature. Update existing command sequences to reflect new changes. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.