[Intel-gfx] [PATCH v8 07/12] drm/i915/guc: Restore symmetric doorbell cleanup

[Michal Wajdeczko]

In commit 9192d4fb811e ("drm/i915/guc: Extract doorbell creation
from client allocation") we introduced asymmetry in doorbell cleanup
to avoid warnings due to failed communication with already reset GuC.
As we improved our reset/unload paths, we can restore symmetry in
doorbell cleanup, as GuC should be still active by now.

Suggested-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Michal Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
 drivers/gpu/drm/i915/intel_guc_submission.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 9712123..3b6d7f5 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -848,18 +848,9 @@ static int guc_clients_doorbell_init(struct intel_guc *guc)
 
 static void guc_clients_doorbell_fini(struct intel_guc *guc)
 {
-	/*
-	 * By the time we're here, GuC has already been reset.
-	 * Instead of trying (in vain) to communicate with it, let's just
-	 * cleanup the doorbell HW and our internal state.
-	 */
-	if (guc->preempt_client) {
-		__destroy_doorbell(guc->preempt_client);
-		__update_doorbell_desc(guc->preempt_client,
-				       GUC_DOORBELL_INVALID);
-	}
-	__destroy_doorbell(guc->execbuf_client);
-	__update_doorbell_desc(guc->execbuf_client, GUC_DOORBELL_INVALID);
+	if (guc->preempt_client)
+		destroy_doorbell(guc->preempt_client);
+	destroy_doorbell(guc->execbuf_client);
 }
 
 /**
-- 
1.9.1