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.
Forked from
Alex Deucher / linux
Matt Roper
authored
Storing the EU mask internally in the same format the I915_QUERY topology queries use makes the final copy_to_user() a bit simpler, but makes the rest of the driver's SSEU more complicated and harder to follow. Let's switch to an internal representation that's more natural: Xe_HP platforms will be a simple array of u16 masks, whereas pre-Xe_HP platforms will be a two-dimensional array, indexed by [slice][subslice]. We'll convert to the uapi format only when the query uapi is called. v2: - Drop has_common_ss_eumask. We waste some space repeating identical EU masks for every single DSS, but the code is simpler without it. (Tvrtko) v3: - Mask down EUs passed to sseu_set_eus at the callsite rather than inside the function. (Tvrtko) - Eliminate sseu->eu_stride and calculate it when needed. (Tvrtko) Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by:Matt Roper <matthew.d.roper@intel.com> Acked-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by:
Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220601150725.521468-5-matthew.d.roper@intel.com
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