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Today we allow to trigger GT resest by reading dedicated debugfs files "force_reset" and "force_reset_sync" that we are exposing using drm_info_list[] and drm_debugfs_create_files(). To avoid triggering potentially disruptive actions during otherwise "safe" read operations, expose those two attributes using debugfs function where we can specify file permissions and provide custom "write" handler to trigger the GT resets also from there. This step would allow us to drop triggering GT resets during read operations, which we leave just to give users more time to switch. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20250519200914.216-1-michal.wajdeczko@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.