[PATCH v7 08/12] drm/i915/uc: Fully sanitize uC within intel_uc_fini_hw

[Michal Wajdeczko]

As we always call intel_uc_sanitize after every call to
intel_uc_fini_hw we may drop redundant call and sanitize
uC from the fini_hw function.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c | 2 --
 drivers/gpu/drm/i915/intel_uc.c | 9 +++------
 drivers/gpu/drm/i915/intel_uc.h | 1 -
 3 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 51469e1..834b016 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3091,7 +3091,6 @@ int i915_gem_reset_prepare(struct drm_i915_private *dev_priv)
 	}
 
 	i915_gem_revoke_fences(dev_priv);
-	intel_uc_sanitize(dev_priv);
 
 	return err;
 }
@@ -5064,7 +5063,6 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
 	 * machine in an unusable condition.
 	 */
 	i915_gem_fini_hw(dev_priv);
-	intel_uc_sanitize(dev_priv);
 	i915_gem_sanitize(dev_priv);
 
 	intel_runtime_pm_put(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 1cffaf7..0439966 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -322,18 +322,13 @@ void intel_uc_fini(struct drm_i915_private *dev_priv)
 	intel_guc_fini(guc);
 }
 
-void intel_uc_sanitize(struct drm_i915_private *i915)
+static void __uc_sanitize(struct drm_i915_private *i915)
 {
 	struct intel_guc *guc = &i915->guc;
 	struct intel_huc *huc = &i915->huc;
 
-	if (!USES_GUC(i915))
-		return;
-
 	GEM_BUG_ON(!HAS_GUC(i915));
 
-	guc_disable_communication(guc);
-
 	intel_huc_sanitize(huc);
 	intel_guc_sanitize(guc);
 
@@ -445,6 +440,8 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
 		intel_guc_submission_disable(guc);
 
 	guc_disable_communication(guc);
+
+	__uc_sanitize(dev_priv);
 }
 
 int intel_uc_suspend(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 25d73ad..64aaf93 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -33,7 +33,6 @@
 void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
 int intel_uc_init_misc(struct drm_i915_private *dev_priv);
 void intel_uc_fini_misc(struct drm_i915_private *dev_priv);
-void intel_uc_sanitize(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);
 int intel_uc_init(struct drm_i915_private *dev_priv);
-- 
1.9.1