7 #include <linux/dma-mapping.h>
59 	struct panfrost_gem_mapping *iter, *mapping = NULL;  in panfrost_gem_mapping_get()  local
65 			mapping = iter;  in panfrost_gem_mapping_get()
71 	return mapping;  in panfrost_gem_mapping_get()
75 panfrost_gem_teardown_mapping(struct panfrost_gem_mapping *mapping)  in panfrost_gem_teardown_mapping()  argument
79 	if (mapping->active)  in panfrost_gem_teardown_mapping()
80 		panfrost_mmu_unmap(mapping);  in panfrost_gem_teardown_mapping()
82 	priv = container_of(mapping->mmu, struct panfrost_file_priv, mmu);  in panfrost_gem_teardown_mapping()
84 	if (drm_mm_node_allocated(&mapping->mmnode))  in panfrost_gem_teardown_mapping()
85 		drm_mm_remove_node(&mapping->mmnode);  in panfrost_gem_teardown_mapping()
91 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_mapping_release()  local
93 	mapping = container_of(kref, struct panfrost_gem_mapping, refcount);  in panfrost_gem_mapping_release()
95 	panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_mapping_release()
96 	drm_gem_object_put(&mapping->obj->base.base);  in panfrost_gem_mapping_release()
97 	kfree(mapping);  in panfrost_gem_mapping_release()
100 void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping)  in panfrost_gem_mapping_put()  argument
102 	if (!mapping)  in panfrost_gem_mapping_put()
105 	kref_put(&mapping->refcount, panfrost_gem_mapping_release);  in panfrost_gem_mapping_put()
110 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_teardown_mappings_locked()  local
112 	list_for_each_entry(mapping, &bo->mappings.list, node)  in panfrost_gem_teardown_mappings_locked()
113 		panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_teardown_mappings_locked()
124 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_open()  local
126 	mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);  in panfrost_gem_open()
127 	if (!mapping)  in panfrost_gem_open()
130 	INIT_LIST_HEAD(&mapping->node);  in panfrost_gem_open()
131 	kref_init(&mapping->refcount);  in panfrost_gem_open()
133 	mapping->obj = bo;  in panfrost_gem_open()
146 	mapping->mmu = &priv->mmu;  in panfrost_gem_open()
148 	ret = drm_mm_insert_node_generic(&priv->mm, &mapping->mmnode,  in panfrost_gem_open()
155 		ret = panfrost_mmu_map(mapping);  in panfrost_gem_open()
162 	list_add_tail(&mapping->node, &bo->mappings.list);  in panfrost_gem_open()
167 		panfrost_gem_mapping_put(mapping);  in panfrost_gem_open()
175 	struct panfrost_gem_mapping *mapping = NULL, *iter;  in panfrost_gem_close()  local
180 			mapping = iter;  in panfrost_gem_close()
187 	panfrost_gem_mapping_put(mapping);  in panfrost_gem_close()