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
77 	if (mapping->active)  in panfrost_gem_teardown_mapping()
78 		panfrost_mmu_unmap(mapping);  in panfrost_gem_teardown_mapping()
80 	spin_lock(&mapping->mmu->mm_lock);  in panfrost_gem_teardown_mapping()
81 	if (drm_mm_node_allocated(&mapping->mmnode))  in panfrost_gem_teardown_mapping()
82 		drm_mm_remove_node(&mapping->mmnode);  in panfrost_gem_teardown_mapping()
83 	spin_unlock(&mapping->mmu->mm_lock);  in panfrost_gem_teardown_mapping()
88 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_mapping_release()  local
90 	mapping = container_of(kref, struct panfrost_gem_mapping, refcount);  in panfrost_gem_mapping_release()
92 	panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_mapping_release()
93 	drm_gem_object_put(&mapping->obj->base.base);  in panfrost_gem_mapping_release()
94 	panfrost_mmu_ctx_put(mapping->mmu);  in panfrost_gem_mapping_release()
95 	kfree(mapping);  in panfrost_gem_mapping_release()
98 void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping)  in panfrost_gem_mapping_put()  argument
100 	if (!mapping)  in panfrost_gem_mapping_put()
103 	kref_put(&mapping->refcount, panfrost_gem_mapping_release);  in panfrost_gem_mapping_put()
108 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_teardown_mappings_locked()  local
110 	list_for_each_entry(mapping, &bo->mappings.list, node)  in panfrost_gem_teardown_mappings_locked()
111 		panfrost_gem_teardown_mapping(mapping);  in panfrost_gem_teardown_mappings_locked()
122 	struct panfrost_gem_mapping *mapping;  in panfrost_gem_open()  local
124 	mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);  in panfrost_gem_open()
125 	if (!mapping)  in panfrost_gem_open()
128 	INIT_LIST_HEAD(&mapping->node);  in panfrost_gem_open()
129 	kref_init(&mapping->refcount);  in panfrost_gem_open()
131 	mapping->obj = bo;  in panfrost_gem_open()
144 	mapping->mmu = panfrost_mmu_ctx_get(priv->mmu);  in panfrost_gem_open()
145 	spin_lock(&mapping->mmu->mm_lock);  in panfrost_gem_open()
146 	ret = drm_mm_insert_node_generic(&mapping->mmu->mm, &mapping->mmnode,  in panfrost_gem_open()
148 	spin_unlock(&mapping->mmu->mm_lock);  in panfrost_gem_open()
153 		ret = panfrost_mmu_map(mapping);  in panfrost_gem_open()
160 	list_add_tail(&mapping->node, &bo->mappings.list);  in panfrost_gem_open()
165 		panfrost_gem_mapping_put(mapping);  in panfrost_gem_open()
173 	struct panfrost_gem_mapping *mapping = NULL, *iter;  in panfrost_gem_close()  local
178 			mapping = iter;  in panfrost_gem_close()
185 	panfrost_gem_mapping_put(mapping);  in panfrost_gem_close()