[Intel-gfx] [PATCH] drm/i915: Introduce i915_gem_fini_hw for symmetry with i915_gem_init_hw

[Michal Wajdeczko]

In function i915_gem_init_hw we are initializing some uC code that
requires some cleanup. Then during unwind we call this uC cleanup
function directly which breaks symmetry and layering. Fix that by
adding i915_gem_fini_hw for symmetry with i915_gem_init_hw.

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/i915_drv.h | 1 +
 drivers/gpu/drm/i915/i915_gem.c | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3017ef0..e31e145 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3225,6 +3225,7 @@ void i915_gem_reset_engine(struct intel_engine_cs *engine,
 int __must_check i915_gem_init_hw(struct drm_i915_private *dev_priv);
 void i915_gem_init_swizzling(struct drm_i915_private *dev_priv);
 void i915_gem_fini(struct drm_i915_private *dev_priv);
+void i915_gem_fini_hw(struct drm_i915_private *i915);
 void i915_gem_cleanup_engines(struct drm_i915_private *dev_priv);
 int i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
 			   unsigned int flags, long timeout);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 7d45e71..8c7ebe4 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5360,6 +5360,11 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 	return ret;
 }
 
+void i915_gem_fini_hw(struct drm_i915_private *i915)
+{
+	intel_uc_fini_hw(i915);
+}
+
 static int __intel_engines_record_defaults(struct drm_i915_private *i915)
 {
 	struct i915_gem_context *ctx;
@@ -5612,7 +5617,7 @@ int i915_gem_init(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);
+	i915_gem_fini_hw(dev_priv);
 err_uc_init:
 	intel_uc_fini(dev_priv);
 err_pm:
@@ -5670,7 +5675,7 @@ 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);
+	i915_gem_fini_hw(dev_priv);
 	intel_uc_fini(dev_priv);
 	i915_gem_cleanup_engines(dev_priv);
 	i915_gem_contexts_fini(dev_priv);
-- 
1.9.1