09bbdd8730
On FBC1 we can specify an arbitrary cfb stride. The hw will simply throw away any compressed line that would exceed the specified limit and keep using the uncompressed data instead. Thus we can allow arbitrary compression limits. The one thing we have to keep in mind though is that the cfb stride is specified in units of 32B (gen2) or 64B (gen3+). Fortunately X-tile is already 128B (gen2) or 512B (gen3+) wide so as long as we limit outselves to the same 4x compression limit that FBC2 has we are guaranteed to have a sufficiently aligned cfb stride. Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210921152517.803-5-ville.syrjala@linux.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.