[PATCH v4 01/13] drm/xe/xe_survivability: Decouple survivability info from boot survivability

Riana Tauro
2026-04-17T08:25:31Z

On CSC runtime firmware errors that requires firmware flash through SPI,
PCODE sets the FDO mode bit in the Capability register.
Currently the survivability_info group is created only for boot
survivability.

Create survivability_info group even for runtime survivability to allow
userspace to check FDO mode sysfs.

Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Mallesh Koujalagi <mallesh.koujalagi@intel.com>
---
v2: Fix typo (Mallesh)

v3: use tab (Mallesh)
---
drivers/gpu/drm/xe/xe_survivability_mode.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_survivability_mode.c b/drivers/gpu/drm/xe/xe_survivability_mode.c
index db64cac39c94..3110ab5d920b 100644
--- a/drivers/gpu/drm/xe/xe_survivability_mode.c
+++ b/drivers/gpu/drm/xe/xe_survivability_mode.c
@@ -54,7 +54,6 @@
* # cat /sys/bus/pci/devices/<device>/survivability_mode
* Boot
*
- *
* Any additional debug information if present will be visible under the directory
* ``survivability_info``::
*
@@ -98,6 +97,15 @@
* # cat /sys/bus/pci/devices/<device>/survivability_mode
* Runtime
*
+ * On some CSC firmware errors, PCODE sets FDO mode and the only recovery possible is through
+ * firmware flash using SPI driver. Userspace can check if FDO mode is set by checking the below
+ * sysfs entry.
+ *
+ * .. code-block:: shell
+ *
+ * # cat /sys/bus/pci/devices/<device>/survivability_info/fdo_mode
+ * enabled
+ *
* When such errors occur, userspace is notified with the drm device wedged uevent and runtime
* survivability mode. User can then initiate a firmware flash using userspace tools like fwupd
* to restore device to normal operation.
@@ -296,7 +304,8 @@ static int create_survivability_sysfs(struct pci_dev *pdev)
if (ret)
return ret;

- if (check_boot_failure(xe)) {
+ /* Survivability info is not required if enabled via configfs */
+ if (!xe_configfs_get_survivability_mode(pdev)) {
ret = devm_device_add_group(dev, &survivability_info_group);
if (ret)
return ret;
--
2.47.1