Satyanarayana K V P e9dea328e8 drm/xe: Introduce fault injection for guc mmio send/recv.
Fault can be injected with below steps.

FAILTYPE=fail_function
FAILFUNC=xe_guc_mmio_send_recv

echo > /sys/kernel/debug/$FAILTYPE/inject
echo $FAILFUNC > /sys/kernel/debug/$FAILTYPE/inject
printf %#x -5 > /sys/kernel/debug/$FAILTYPE/$FAILFUNC/retval

echo N > /sys/kernel/debug/$FAILTYPE/task-filter
echo 10 > /sys/kernel/debug/$FAILTYPE/probability
echo 0 > /sys/kernel/debug/$FAILTYPE/interval
echo -1 > /sys/kernel/debug/$FAILTYPE/times
echo 0 > /sys/kernel/debug/$FAILTYPE/space
echo 1 > /sys/kernel/debug/$FAILTYPE/verbose

Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michał Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://lore.kernel.org/r/20250403120641.7258-2-satyanarayana.k.v.p@intel.com
2025-04-17 22:11:16 +02:00
2025-02-04 11:27:45 -05:00
2025-03-09 13:45:25 -10:00

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.
S
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