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4d291c441b
Bspec lists different VT-d guard numbers (the number of dummy padding PTEs) for different platforms and plane types. Use those instead of just assuming the max glk+ number for everything. This could avoid a bit of overhead on older platforms due to reduced padding, and it makes it easier to cross check with the spec. Note that VLV/CHV do not document this w/a at all, so not sure if it's actually needed or not. Nor do we actually know how much padding is required if it is needed. For now use the same 128 PTEs that we use for snb-bdw primary planes. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250122151755.6928-5-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@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 reStructuredText 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.