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Although the vast majority of workarounds the driver needs to implement are either GT-based or display-based, there are occasionally workarounds that reside outside those parts of the hardware (i.e., in they target registers in the sgunit/soc); we can consider these to be "tile" workarounds since there will be instance of these registers per tile. The registers in question should only lose their values during a function-level reset, so they only need to be applied during probe and resume; the registers will not be affected by GT/engine resets. Tile workarounds are rare (there's only one, 22010954014, that's relevant to Xe at the moment) so it's probably not worth updating the xe_rtp design to handle tile-level workarounds yet, although we may want to consider that in the future if/when more of these show up on future platforms. Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://lore.kernel.org/r/20230913231411.291933-13-matthew.d.roper@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.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.