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The tile size for all surface types is 4 kbyte (or 2 kbyte on old platforms), with the exception of the TGL/ADL CCS surface where the tile size is 64 bytes. To be able to remap CCS FBs the CCS surface tile needs to be defined as 4 kbyte as well (the granularity of GTT pages in a remapped view). The only place using the dimension of the 64 byte CCS area is the initial check for the main vs. CCS plane origin coordinate match. To prepare for adding support for remapping CCS FBs let's call the 64 byte CCS area a 'tile block' and add a helper to retrieve the dimensions for it. No functional change. Cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210906182715.3915100-2-imre.deak@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.