From: Alex Dai <yu.dai@xxxxxxxxx>
If rc6 is enabled, notify GuC so it can do proper forcewake before
command submission.
Signed-off-by: Alex Dai <yu.dai@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_guc_submission.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index ec70393..792d0b9 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -151,6 +151,18 @@ static int host2guc_release_doorbell(struct intel_guc *guc,
return host2guc_action(guc, data, 2);
}
+static int host2guc_sample_forcewake(struct intel_guc *guc,
+ struct i915_guc_client *client)
+{
+ struct drm_i915_private *dev_priv = guc_to_i915(guc);
+ u32 data[2];
+
+ data[0] = HOST2GUC_ACTION_SAMPLE_FORCEWAKE;
+ data[1] = (intel_enable_rc6(dev_priv->dev)) ? 1 : 0;
+
+ return host2guc_action(guc, data, 2);
+}
+
/*
* Initialise, update, or clear doorbell data shared with the GuC
*
@@ -874,6 +886,9 @@ int i915_guc_submission_enable(struct drm_device *dev)
}
guc->execbuf_client = client;
+
+ host2guc_sample_forcewake(guc, client);
+
return 0;
}
--
1.9.1
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