[PATCH v4 6/9] drm/xe/doc: Document device wedged and runtime survivability

[Raag Jadav]

On Wed, Jul 09, 2025 at 04:50:18PM +0530, Riana Tauro wrote:
> Add documentation for vendor specific device wedged recovery method
> and runtime survivability.

...

> + * Runtime Survivability
> + * =====================
> + *
> + * Certain runtime firmware errors can cause the device to enter a wedged state
> + * (:ref:`xe-device-wedging`) requiring a firmware flash to restore normal operation.
> + * Runtime Survivability Mode indicates that a firmware flash is necessary to recover the device and
> + * is indicated by the presence of survivability mode sysfs::
> + *
> + *	/sys/bus/pci/devices/<device>/survivability_mode
> + *
> + * Survivability mode sysfs provides information about the type of survivability mode.
> + *
> + * When such errors occur, userspace is notified with the drm device wedged uevent and runtime
> + * survivability mode. User can then initiate a firmware flash to restore device to normal
> + * operation.

Do we have definition on actual procedure? Can we add a reference to it?
Otherwise it's telling me to do something I have no idea about.

Raag