8 #include <linux/dma-mapping.h>
94 	struct panfrost_gem_mapping *iter, *mapping = NULL;  in panfrost_gem_mapping_get()  local
100 			mapping = iter;  in panfrost_gem_mapping_get()
106 	return mapping;  in panfrost_gem_mapping_get()
110 panfrost_gem_teardown_mapping(struct panfrost_gem_mapping *mapping)  in panfrost_gem_teardown_mapping()  argument
112 	if (mapping->active)  in panfrost_gem_teardown_mapping()
113 		panfrost_mmu_unmap(mapping);  in panfrost_gem_teardown_mapping()
115 	spin_lock(&mapping->mmu->mm_lock);  in panfrost_gem_teardown_mapping()
116 	if (drm_mm_node_allocated(&mapping->mmnode))  in panfrost_gem_teardown_mapping()
117 		drm_mm_remove_node(&mapping->mmnode);  in panfrost_gem_teardown_mapping()
118 	spin_unlock(&mapping->mmu->mm_lock);  in panfrost_gem_teardown_mapping()
123 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_mapping_release()  local
125 	mapping = container_of(kref, struct panfrost_gem_mapping, refcount);  in panfrost_gem_mapping_release()
127 	panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_mapping_release()
128 	drm_gem_object_put(&mapping->obj->base.base);  in panfrost_gem_mapping_release()
129 	panfrost_mmu_ctx_put(mapping->mmu);  in panfrost_gem_mapping_release()
130 	kfree(mapping);  in panfrost_gem_mapping_release()
133 void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping)  in panfrost_gem_mapping_put()  argument
135 	if (!mapping)  in panfrost_gem_mapping_put()
138 	kref_put(&mapping->refcount, panfrost_gem_mapping_release);  in panfrost_gem_mapping_put()
143 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_teardown_mappings_locked()  local
145 	list_for_each_entry(mapping, &bo->mappings.list, node)  in panfrost_gem_teardown_mappings_locked()
146 		panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_teardown_mappings_locked()
157 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_open()  local
159 	mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);  in panfrost_gem_open()
160 	if (!mapping)  in panfrost_gem_open()
163 	INIT_LIST_HEAD(&mapping->node);  in panfrost_gem_open()
164 	kref_init(&mapping->refcount);  in panfrost_gem_open()
166 	mapping->obj = bo;  in panfrost_gem_open()
179 	mapping->mmu = panfrost_mmu_ctx_get(priv->mmu);  in panfrost_gem_open()
180 	spin_lock(&mapping->mmu->mm_lock);  in panfrost_gem_open()
181 	ret = drm_mm_insert_node_generic(&mapping->mmu->mm, &mapping->mmnode,  in panfrost_gem_open()
183 	spin_unlock(&mapping->mmu->mm_lock);  in panfrost_gem_open()
188 		ret = panfrost_mmu_map(mapping);  in panfrost_gem_open()
195 	list_add_tail(&mapping->node, &bo->mappings.list);  in panfrost_gem_open()
200 		panfrost_gem_mapping_put(mapping);  in panfrost_gem_open()
208 	struct panfrost_gem_mapping *mapping = NULL, *iter;  in panfrost_gem_close()  local
213 			mapping = iter;  in panfrost_gem_close()
220 	panfrost_gem_mapping_put(mapping);  in panfrost_gem_close()