[Intel-gfx] [PATCH 01/21] drm/i915/guc: Update GuC power domain states

[Michal Wajdeczko]

We should update GuC power domain states also when GuC submission
is disabled, otherwise GuC might complain or ignore our requests.
This seems to be required for all currently released GuC firmwares.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: John Spotswood <john.a.spotswood at intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa at intel.com>
Cc: Tomasz Lis <tomasz.lis at intel.com>
---
 drivers/gpu/drm/i915/intel_uc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 7c95697..7a3a4ca 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -401,6 +401,10 @@ int intel_uc_init_hw(struct drm_i915_private *i915)
 		ret = intel_guc_submission_enable(guc);
 		if (ret)
 			goto err_communication;
+	} else {
+		ret = intel_guc_sample_forcewake(guc);
+		if (ret)
+			goto err_communication;
 	}
 
 	dev_info(i915->drm.dev, "GuC firmware version %u.%u\n",
-- 
1.9.1