[PATCH v5 5/9] drm/xe/xe_survivability: Add support for Runtime survivability mode

[Raag Jadav]

On Tue, Jul 15, 2025 at 04:17:25PM +0530, Riana Tauro wrote:
> Certain runtime firmware errors can cause the device to be in a unusable
> state requiring a firmware flash to restore normal operation.
> Runtime Survivability Mode indicates firmware flash is necessary by
> wedging the device and exposing survivability mode sysfs.
> 
> The below sysfs is an indication that device is in survivability mode
> 
> /sys/bus/pci/devices/<device>/survivability_mode

...

> +int xe_survivability_mode_runtime_enable(struct xe_device *xe)
> +{
> +	struct xe_survivability *survivability = &xe->survivability;
> +	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);
> +	int ret;
> +
> +	if (!IS_DGFX(xe) || IS_SRIOV_VF(xe) || xe->info.platform < XE_BATTLEMAGE) {
> +		dev_err(&pdev->dev, "Runtime Survivability Mode not supported\n");
> +		return -EINVAL;
> +	}
> +
> +	ret = init_survivability_mode(xe);
> +	if (ret)
> +		return ret;
> +
> +	ret = create_survivability_sysfs(pdev);
> +	if (ret)
> +		dev_err(&pdev->dev, "Failed to create survivability mode sysfs\n");
> +
> +	survivability->type = XE_SURVIVABILITY_TYPE_RUNTIME;
> +	dev_err(&pdev->dev, "Runtime Survivability mode enabled\n");
> +
> +	xe_device_set_wedged_method(xe, DRM_WEDGE_RECOVERY_VENDOR);
> +	xe_device_declare_wedged(xe);
> +	dev_err(&pdev->dev, "Firmware update required, Refer the userspace documentation for more details!\n");

Do we have it? Or did I miss it somewhere? :D

Raag