[Intel-gfx] [PATCH 7/7] drm/i915/uc: Don't forget to prepare GuC for the reset

[Michal Wajdeczko]

When we reset engines using ALL_ENGINES mask, we will do
full GPU reset and GuC will be also affected. Let GuC be
prepared for upcoming reset.

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/gt/intel_reset.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index 464369bc55ad..ca6e40b6b4e2 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -564,6 +564,10 @@ static int gen8_reset_engines(struct drm_i915_private *i915,
 		 */
 	}
 
+	/* We are about to do full GPU reset, don't forget about GuC */
+	if (engine_mask == ALL_ENGINES)
+		intel_uc_reset_prepare(i915);
+
 	if (INTEL_GEN(i915) >= 11)
 		ret = gen11_reset_engines(i915, engine_mask, retry);
 	else
-- 
2.19.2