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Vinay Belgaumkar
3b1592fb78
This WA requires us to limit media GT frequency requests to a certain cap value during driver load. Freq limits are restored after load completes, so perf will not be affected during normal operations. During normal driver operation, this WA requires dummy writes to media offset 0x380D8C after every ~63 GGTT writes. This will ensure completion of the LMEM writes originating from Gunit. During driver unload(before FLR), the WA requires that we set requested frequency to the cap value again. v3: Do not use WA number in function name. Call WA wrapper from xe_device. Rename some variables, check for locks in the correct function (Rodrigo). Ensure reset path is also covered for this WA. v4: Fix BAT failure v5: Add a function pointer for ggtt_ops (Michal W) v6: Fix name collision and use static function (Rodrigo) Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240620224928.3986377-2-vinay.belgaumkar@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@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.