55 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_attach_device()  local
58 	if (!private->domain)  in rockchip_drm_dma_attach_device()
70 	ret = iommu_attach_device(private->domain, dev);  in rockchip_drm_dma_attach_device()
82 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_detach_device()  local
84 	if (!private->domain)  in rockchip_drm_dma_detach_device()
87 	iommu_detach_device(private->domain, dev);  in rockchip_drm_dma_detach_device()
93 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_init_device()  local
96 		private->iommu_dev = ERR_PTR(-ENODEV);  in rockchip_drm_dma_init_device()
97 	else if (!private->iommu_dev)  in rockchip_drm_dma_init_device()
98 		private->iommu_dev = dev;  in rockchip_drm_dma_init_device()
103 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_init_iommu()  local
107 	if (IS_ERR_OR_NULL(private->iommu_dev))  in rockchip_drm_init_iommu()
110 	private->domain = iommu_domain_alloc(private->iommu_dev->bus);  in rockchip_drm_init_iommu()
111 	if (!private->domain)  in rockchip_drm_init_iommu()
114 	geometry = &private->domain->geometry;  in rockchip_drm_init_iommu()
120 	drm_mm_init(&private->mm, start, end - start + 1);  in rockchip_drm_init_iommu()
121 	mutex_init(&private->mm_lock);  in rockchip_drm_init_iommu()
128 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_iommu_cleanup()  local
130 	if (!private->domain)  in rockchip_iommu_cleanup()
133 	drm_mm_takedown(&private->mm);  in rockchip_iommu_cleanup()
134 	iommu_domain_free(private->domain);  in rockchip_iommu_cleanup()
140 	struct rockchip_drm_private *private;  in rockchip_drm_bind()  local
158 	private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL);  in rockchip_drm_bind()
159 	if (!private) {  in rockchip_drm_bind()
164 	drm_dev->dev_private = private;  in rockchip_drm_bind()