[PATCH 18/22] drm/i915/guc: Fix GuC cleanup in unload path

[Sagar Arun Kamble]

We ensure that GuC is completely suspended and client is destroyed
in i915_gem_suspend during i915_driver_unload. So now intel_uc_fini_hw
should just take care of cleanup,
hence s/intel_uc_fini_hw/intel_uc_cleanup. Correspondingly
we also updated as s/i915_guc_submission_fini/i915_guc_submission_cleanup
Other functionality to disable communication, disable interrupts and
update of ggtt.invalidate is taken care by intel_uc_suspend.

v2: Rebase w.r.t removal of GuC code restructuring.

v3: Removed intel_guc_cleanup. (Michal Wajdeczko)

v4: guc_free_load_err_log() needs to be called without checking
i915.enable_guc_loading as this param is cleared on GuC load failure.
(Michal Wajdeczko)

v5. Rebase.

v6: Rebase.

Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Michał Winiarski <michal.winiarski at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c            |  2 +-
 drivers/gpu/drm/i915/i915_guc_submission.c |  2 +-
 drivers/gpu/drm/i915/i915_guc_submission.h |  2 +-
 drivers/gpu/drm/i915/intel_uc.c            | 12 +++---------
 drivers/gpu/drm/i915/intel_uc.h            |  2 +-
 5 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index eb87040..47817d5 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -612,7 +612,7 @@ static void i915_gem_fini(struct drm_i915_private *dev_priv)
 	i915_gem_drain_workqueue(dev_priv);
 
 	mutex_lock(&dev_priv->drm.struct_mutex);
-	intel_uc_fini_hw(dev_priv);
+	intel_uc_cleanup(dev_priv);
 	i915_gem_cleanup_engines(dev_priv);
 	i915_gem_contexts_fini(dev_priv);
 	i915_gem_cleanup_userptr(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 10aded8..e6646ce 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -1014,7 +1014,7 @@ int i915_guc_submission_init(struct drm_i915_private *dev_priv)
 	return ret;
 }
 
-void i915_guc_submission_fini(struct drm_i915_private *dev_priv)
+void i915_guc_submission_cleanup(struct drm_i915_private *dev_priv)
 {
 	struct intel_guc *guc = &dev_priv->guc;
 
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.h b/drivers/gpu/drm/i915/i915_guc_submission.h
index a7e61e6..ef27d23 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.h
+++ b/drivers/gpu/drm/i915/i915_guc_submission.h
@@ -75,6 +75,6 @@ struct i915_guc_client {
 int i915_guc_submission_init(struct drm_i915_private *dev_priv);
 int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
 void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
-void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
+void i915_guc_submission_cleanup(struct drm_i915_private *dev_priv);
 
 #endif
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index cf2ec6a..4e4d857 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -252,7 +252,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 err_log_capture:
 	guc_capture_load_err_log(guc);
 err_submission:
-	i915_guc_submission_fini(dev_priv);
+	i915_guc_submission_cleanup(dev_priv);
 err_guc:
 	i915_ggtt_disable_guc(dev_priv);
 
@@ -274,19 +274,13 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 	return ret;
 }
 
-void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
+void intel_uc_cleanup(struct drm_i915_private *dev_priv)
 {
 	struct intel_guc *guc = &dev_priv->guc;
 
 	guc_free_load_err_log(guc);
 
-	guc_disable_communication(guc);
-
-	gen9_disable_guc_interrupts(dev_priv);
-	i915_guc_submission_fini(dev_priv);
-
-	if (i915_modparams.enable_guc_loading)
-		i915_ggtt_disable_guc(dev_priv);
+	i915_guc_submission_cleanup(dev_priv);
 }
 
 void intel_uc_sanitize(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index cd15f07..0c62245 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -33,7 +33,7 @@
 void intel_uc_init_fw(struct drm_i915_private *dev_priv);
 void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
 int intel_uc_init_hw(struct drm_i915_private *dev_priv);
-void intel_uc_fini_hw(struct drm_i915_private *dev_priv);
+void intel_uc_cleanup(struct drm_i915_private *dev_priv);
 void intel_uc_sanitize(struct drm_i915_private *dev_priv,
 		       unsigned int engine_mask);
 int intel_uc_runtime_suspend(struct drm_i915_private *dev_priv);
-- 
1.9.1