[Intel-gfx] [PATCH 5/7] drm/i915/uc: Skip reset preparation if GuC is already dead

[Michal Wajdeczko]

We may skip reset preparation steps if GuC is already sanitized.

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 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 86edfa5ad72e..36c53a42927c 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -499,6 +499,9 @@ void intel_uc_reset_prepare(struct drm_i915_private *i915)
 	if (!USES_GUC(i915))
 		return;
 
+	if (!intel_guc_is_alive(guc))
+		return;
+
 	guc_stop_communication(guc);
 	__uc_sanitize(i915);
 }
-- 
2.19.2