[PATCH 08/22] drm/i915/guc: Don't enable scheduling on a banned context, guc_id invalid, not registered

[Matthew Brost]

When unblocking a context, do not enable scheduling if the context is
banned, guc_id invalid, or not registered.

Fixes: 62eaf0ae217d ("drm/i915/guc: Support request cancellation")
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
Cc: <stable at vger.kernel.org>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 3 +++
 1 file changed, 3 insertions(+)

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 c3b7bf7319dd..353899634fa8 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1579,6 +1579,9 @@ static void guc_context_unblock(struct intel_context *ce)
 	spin_lock_irqsave(&ce->guc_state.lock, flags);
 
 	if (unlikely(submission_disabled(guc) ||
+		     intel_context_is_banned(ce) ||
+		     context_guc_id_invalid(ce) ||
+		     !lrc_desc_registered(guc, ce->guc_id) ||
 		     !intel_context_is_pinned(ce) ||
 		     context_pending_disable(ce) ||
 		     context_blocked(ce) > 1)) {
-- 
2.32.0