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Linux kernel source tree
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The HuC initialization code determines whether a platform can have a HuC on the primary GT by checking whether tile->media_gt is NULL; old Xe1 platforms that combined render+media into a single GT will always have a NULL media_gt pointer. However once we allow media to be disabled via configfs, there will also be cases where tile->media_gt is NULL on more modern platforms, causing this condition to behave incorrectly. To handle cases where media gets disabled via configfs (or theoretical cases where media is truly fused off in hardware), change the condition to consider the graphics version of the primary GT; only the old Xe1 platforms with graphics versions 12.55 or earlier should try to initialize a HuC on the primary GT. Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com> Link: https://lore.kernel.org/r/20251013200944.2499947-26-matthew.d.roper@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> |
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| README | ||
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.