drm/i915/guc: Update name and prototype of GuC submission interface functions

i915 GuC submission is hardware interface and GuC APIs that are not user
facing should be named intel_guc* hence we change GuC submission related
functions name prefix to intel_guc. Also changed the parameter to these
functions to intel_guc struct.

v2: Using local guc variable in intel_uc_fini_hw. (Michal Wajdeczko)
Rebase.
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510839162-25197-4-git-send-email-sagar.a.kamble@intel.comSigned-off-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/i915_guc_submission.c

@@ -1253,9 +1253,8 @@ static void guc_preempt_work_destroy(struct intel_guc *guc)
  * Set up the memory resources to be shared with the GuC (via the GGTT)
  * at firmware loading time.
  */
-int i915_guc_submission_init(struct drm_i915_private *dev_priv)
+int intel_guc_submission_init(struct intel_guc *guc)
 {
-	struct intel_guc *guc = &dev_priv->guc;
 	int ret;
 
 	if (guc->stage_desc_pool)
@@ -1302,10 +1301,8 @@ 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 intel_guc_submission_fini(struct intel_guc *guc)
 {
-	struct intel_guc *guc = &dev_priv->guc;
-
 	guc_ads_destroy(guc);
 	guc_preempt_work_destroy(guc);
 	intel_guc_log_destroy(guc);
@@ -1391,9 +1388,9 @@ static void guc_submission_unpark(struct intel_engine_cs *engine)
 	intel_engine_pin_breadcrumbs_irq(engine);
 }
 
-int i915_guc_submission_enable(struct drm_i915_private *dev_priv)
+int intel_guc_submission_enable(struct intel_guc *guc)
 {
-	struct intel_guc *guc = &dev_priv->guc;
+	struct drm_i915_private *dev_priv = guc_to_i915(guc);
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 	int err;
@@ -1451,9 +1448,9 @@ int i915_guc_submission_enable(struct drm_i915_private *dev_priv)
 	return err;
 }
 
-void i915_guc_submission_disable(struct drm_i915_private *dev_priv)
+void intel_guc_submission_disable(struct intel_guc *guc)
 {
-	struct intel_guc *guc = &dev_priv->guc;
+	struct drm_i915_private *dev_priv = guc_to_i915(guc);
 
 	GEM_BUG_ON(dev_priv->gt.awake); /* GT should be parked first */
 

drivers/gpu/drm/i915/i915_guc_submission.h

@@ -72,9 +72,9 @@ struct i915_guc_client {
 	u64 submissions[I915_NUM_ENGINES];
 };
 
-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);
+int intel_guc_submission_init(struct intel_guc *guc);
+int intel_guc_submission_enable(struct intel_guc *guc);
+void intel_guc_submission_disable(struct intel_guc *guc);
+void intel_guc_submission_fini(struct intel_guc *guc);
 
 #endif

drivers/gpu/drm/i915/intel_uc.c

@@ -168,7 +168,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 		 * This is stuff we need to have available at fw load time
 		 * if we are planning to enable submission later
 		 */
-		ret = i915_guc_submission_init(dev_priv);
+		ret = intel_guc_submission_init(guc);
 		if (ret)
 			goto err_guc;
 	}
@@ -217,7 +217,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 		if (i915_modparams.guc_log_level >= 0)
 			gen9_enable_guc_interrupts(dev_priv);
 
-		ret = i915_guc_submission_enable(dev_priv);
+		ret = intel_guc_submission_enable(guc);
 		if (ret)
 			goto err_interrupts;
 	}
@@ -246,7 +246,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 	guc_capture_load_err_log(guc);
 err_submission:
 	if (i915_modparams.enable_guc_submission)
-		i915_guc_submission_fini(dev_priv);
+		intel_guc_submission_fini(guc);
 err_guc:
 	i915_ggtt_disable_guc(dev_priv);
 
@@ -271,19 +271,21 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 
 void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
 {
-	guc_free_load_err_log(&dev_priv->guc);
+	struct intel_guc *guc = &dev_priv->guc;
+
+	guc_free_load_err_log(guc);
 
 	if (!i915_modparams.enable_guc_loading)
 		return;
 
 	if (i915_modparams.enable_guc_submission)
-		i915_guc_submission_disable(dev_priv);
+		intel_guc_submission_disable(guc);
 
-	guc_disable_communication(&dev_priv->guc);
+	guc_disable_communication(guc);
 
 	if (i915_modparams.enable_guc_submission) {
 		gen9_disable_guc_interrupts(dev_priv);
-		i915_guc_submission_fini(dev_priv);
+		intel_guc_submission_fini(guc);
 	}
 
 	i915_ggtt_disable_guc(dev_priv);