On 15/12/2021 22:45, John.C.Harrison@Intel.com wrote:
From: John Harrison John.C.Harrison@Intel.com
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.
Signed-off-by: John Harrison John.C.Harrison@Intel.com
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
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 97311119da6f..88f002c4d41b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -1350,7 +1350,8 @@ 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) ||test_bit(I915_WEDGED, &guc_to_gt(guc)->reset.flags));
Or intel_gt_is_wedged ?
Regards,
Tvrtko
}
static void disable_submission(struct intel_guc *guc)