From: John Harrison <John.C.Harrison@xxxxxxxxx>
A fault injection probe test hit a BUG_ON in a GuC error path. It
showed that the GuC code could potentially attempt to do many things
when the device is actually wedged. So, add a check in to prevent that.
v2: Use intel_gt_is_wedged instead of testing bits directly in the
GuC submission code (review feedback from Tvrtko).
Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index e7517206af82..756b29d8326b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1349,7 +1349,8 @@ submission_disabled(struct intel_guc *guc)
struct i915_sched_engine * const sched_engine = guc->sched_engine;
return unlikely(!sched_engine ||
- !__tasklet_is_enabled(&sched_engine->tasklet));
+ !__tasklet_is_enabled(&sched_engine->tasklet) ||
+ intel_gt_is_wedged(guc_to_gt(guc)));
}
static void disable_submission(struct intel_guc *guc)
@@ -1725,7 +1726,7 @@ void intel_guc_submission_reset_finish(struct intel_guc *guc)
{
/* Reset called during driver load or during wedge? */
if (unlikely(!guc_submission_initialized(guc) ||
- test_bit(I915_WEDGED, &guc_to_gt(guc)->reset.flags))) {
+ intel_gt_is_wedged(guc_to_gt(guc)))) {
return;
}
--
2.25.1
