[PATCH 4/5] drm/i915/uc: Fini GuC submission during reset prepare

[Michal Wajdeczko]

Fini GuC submission during reset prepare and don't expect
that GuC is still running.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
 drivers/gpu/drm/i915/intel_uc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 28b257a36958..88b4a7227a91 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -488,6 +488,12 @@ void intel_uc_reset_prepare(struct drm_i915_private *i915)
 	if (!USES_GUC(i915))
 		return;
 
+	if (!intel_guc_is_alive(guc))
+		return;
+
+	if (USES_GUC_SUBMISSION(i915))
+		intel_guc_submission_disable(guc);
+
 	guc_disable_communication(guc);
 	intel_uc_sanitize(i915);
 }
-- 
2.19.2