drm/i915/gvt: Move workload cache init/clean into intel_vgpu_{setup, clean}_submission()

Move vGPU workload cache initialization/de-initialization into
intel_vgpu_{setup, clean}_submission() since they are not specific to
execlist stuffs.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>

drivers/gpu/drm/i915/gvt/execlist.c

@@ -856,14 +856,12 @@ void intel_vgpu_clean_execlist(struct intel_vgpu *vgpu)
 	struct intel_engine_cs *engine;
 
 	clean_workloads(vgpu, ALL_ENGINES);
-	kmem_cache_destroy(vgpu->workloads);
 
 	for_each_engine(engine, vgpu->gvt->dev_priv, i) {
 		kfree(vgpu->reserve_ring_buffer_va[i]);
 		vgpu->reserve_ring_buffer_va[i] = NULL;
 		vgpu->reserve_ring_buffer_size[i] = 0;
 	}
-
 }
 
 #define RESERVE_RING_BUFFER_SIZE		((1 * PAGE_SIZE)/8)
@@ -872,19 +870,8 @@ int intel_vgpu_init_execlist(struct intel_vgpu *vgpu)
 	enum intel_engine_id i;
 	struct intel_engine_cs *engine;
 
-	/* each ring has a virtual execlist engine */
-	for_each_engine(engine, vgpu->gvt->dev_priv, i) {
+	for_each_engine(engine, vgpu->gvt->dev_priv, i)
 		init_vgpu_execlist(vgpu, i);
-		INIT_LIST_HEAD(&vgpu->workload_q_head[i]);
-	}
-
-	vgpu->workloads = kmem_cache_create("gvt-g_vgpu_workload",
-			sizeof(struct intel_vgpu_workload), 0,
-			SLAB_HWCACHE_ALIGN,
-			NULL);
-
-	if (!vgpu->workloads)
-		return -ENOMEM;
 
 	/* each ring has a shadow ring buffer until vgpu destroyed */
 	for_each_engine(engine, vgpu->gvt->dev_priv, i) {

drivers/gpu/drm/i915/gvt/scheduler.c

@@ -719,6 +719,7 @@ int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt)
 void intel_vgpu_clean_submission(struct intel_vgpu *vgpu)
 {
 	i915_gem_context_put(vgpu->shadow_ctx);
+	kmem_cache_destroy(vgpu->workloads);
 }
 
 /**
@@ -733,7 +734,9 @@ void intel_vgpu_clean_submission(struct intel_vgpu *vgpu)
  */
 int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 {
-	atomic_set(&vgpu->running_workload_num, 0);
+	enum intel_engine_id i;
+	struct intel_engine_cs *engine;
+	int ret;
 
 	vgpu->shadow_ctx = i915_gem_context_create_gvt(
 			&vgpu->gvt->dev_priv->drm);
@@ -742,5 +745,24 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 
 	bitmap_zero(vgpu->shadow_ctx_desc_updated, I915_NUM_ENGINES);
 
+	vgpu->workloads = kmem_cache_create("gvt-g_vgpu_workload",
+			sizeof(struct intel_vgpu_workload), 0,
+			SLAB_HWCACHE_ALIGN,
+			NULL);
+
+	if (!vgpu->workloads) {
+		ret = -ENOMEM;
+		goto out_shadow_ctx;
+	}
+
+	for_each_engine(engine, vgpu->gvt->dev_priv, i)
+		INIT_LIST_HEAD(&vgpu->workload_q_head[i]);
+
+	atomic_set(&vgpu->running_workload_num, 0);
+
 	return 0;
+
+out_shadow_ctx:
+	i915_gem_context_put(vgpu->shadow_ctx);
+	return ret;
 }