34  * drm_iommu_attach_device- attach device to iommu mapping
40  * mapping.
57 		 * Keep the original DMA mapping of the sub-device and  in drm_iommu_attach_device()
66 		ret = arm_iommu_attach_device(subdrv_dev, priv->mapping);  in drm_iommu_attach_device()
68 		ret = iommu_attach_device(priv->mapping, subdrv_dev);  in drm_iommu_attach_device()
75  * drm_iommu_detach_device -detach device address space mapping from device
81  * mapping
92 		iommu_detach_device(priv->mapping, subdrv_dev);  in drm_iommu_detach_device()
102 		DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",  in exynos_drm_register_dma()
109 	if (!priv->mapping) {  in exynos_drm_register_dma()
110 		void *mapping = NULL;  in exynos_drm_register_dma()  local
113 			mapping = arm_iommu_create_mapping(dev,  in exynos_drm_register_dma()
116 			mapping = iommu_get_domain_for_dev(priv->dma_dev);  in exynos_drm_register_dma()
118 		if (!mapping)  in exynos_drm_register_dma()
120 		priv->mapping = mapping;  in exynos_drm_register_dma()
140 	arm_iommu_release_mapping(priv->mapping);  in exynos_drm_cleanup_dma()
141 	priv->mapping = NULL;  in exynos_drm_cleanup_dma()