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| author | Satyanarayana K V P <satyanarayana.k.v.p@intel.com> | 2025-04-03 15:06:40 +0300 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2025-04-17 23:11:16 +0300 |
| commit | e9dea328e8392d01b21544587cbcf313e4fdbe26 (patch) | |
| tree | 8f254499d15446925210dc2443e648275ce3ff17 | |
| parent | 73bf722bbb618df6d7936f97e1d68298fc893718 (diff) | |
| download | linux-e9dea328e8392d01b21544587cbcf313e4fdbe26.tar.xz | |
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
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c index 38866135c019..c5aace59b62c 100644 --- a/drivers/gpu/drm/xe/xe_guc.c +++ b/drivers/gpu/drm/xe/xe_guc.c @@ -1394,6 +1394,7 @@ proto: /* Use data from the GuC response as our return value */ return FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, header); } +ALLOW_ERROR_INJECTION(xe_guc_mmio_send_recv, ERRNO); int xe_guc_mmio_send(struct xe_guc *guc, const u32 *request, u32 len) { |