31 	struct dma_iommu_mapping *mapping = NULL;  in drm_create_iommu_mapping()  local
40 	mapping = arm_iommu_create_mapping(&platform_bus_type, priv->da_start,  in drm_create_iommu_mapping()
43 	if (IS_ERR(mapping))  in drm_create_iommu_mapping()
44 		return PTR_ERR(mapping);  in drm_create_iommu_mapping()
52 	dev->archdata.mapping = mapping;  in drm_create_iommu_mapping()
56 	arm_iommu_release_mapping(mapping);  in drm_create_iommu_mapping()
72 	arm_iommu_release_mapping(dev->archdata.mapping);  in drm_release_iommu_mapping()
90 	if (!dev->archdata.mapping) {  in drm_iommu_attach_device()
103 	ret = arm_iommu_attach_device(subdrv_dev, dev->archdata.mapping);  in drm_iommu_attach_device()
136 	struct dma_iommu_mapping *mapping = dev->archdata.mapping;  in drm_iommu_detach_device()  local
138 	if (!mapping || !mapping->domain)  in drm_iommu_detach_device()
141 	iommu_detach_device(mapping->domain, subdrv_dev);  in drm_iommu_detach_device()