56 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_attach_device()  local
59 	if (!private->domain)  in rockchip_drm_dma_attach_device()
71 	ret = iommu_attach_device(private->domain, dev);  in rockchip_drm_dma_attach_device()
83 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_detach_device()  local
85 	if (!private->domain)  in rockchip_drm_dma_detach_device()
88 	iommu_detach_device(private->domain, dev);  in rockchip_drm_dma_detach_device()
94 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_dma_init_device()  local
97 		private->iommu_dev = ERR_PTR(-ENODEV);  in rockchip_drm_dma_init_device()
98 	else if (!private->iommu_dev)  in rockchip_drm_dma_init_device()
99 		private->iommu_dev = dev;  in rockchip_drm_dma_init_device()
101 	if (!IS_ERR(private->iommu_dev))  in rockchip_drm_dma_init_device()
102 		drm_dev_set_dma_dev(drm_dev, private->iommu_dev);  in rockchip_drm_dma_init_device()
107 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_drm_init_iommu()  local
112 	if (IS_ERR_OR_NULL(private->iommu_dev))  in rockchip_drm_init_iommu()
115 	private->domain = iommu_paging_domain_alloc(private->iommu_dev);  in rockchip_drm_init_iommu()
116 	if (IS_ERR(private->domain)) {  in rockchip_drm_init_iommu()
117 		ret = PTR_ERR(private->domain);  in rockchip_drm_init_iommu()
118 		private->domain = NULL;  in rockchip_drm_init_iommu()
122 	geometry = &private->domain->geometry;  in rockchip_drm_init_iommu()
128 	drm_mm_init(&private->mm, start, end - start + 1);  in rockchip_drm_init_iommu()
129 	mutex_init(&private->mm_lock);  in rockchip_drm_init_iommu()
136 	struct rockchip_drm_private *private = drm_dev->dev_private;  in rockchip_iommu_cleanup()  local
138 	if (!private->domain)  in rockchip_iommu_cleanup()
141 	drm_mm_takedown(&private->mm);  in rockchip_iommu_cleanup()
142 	iommu_domain_free(private->domain);  in rockchip_iommu_cleanup()
148 	struct rockchip_drm_private *private;  in rockchip_drm_bind()  local
166 	private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL);  in rockchip_drm_bind()
167 	if (!private) {  in rockchip_drm_bind()
172 	drm_dev->dev_private = private;  in rockchip_drm_bind()