Re: [PATCH 1/3] iommu: Add Visconti5 IOMMU driver

From: Baolu Lu
Date: Wed May 25 2022 - 02:26:47 EST


On 2022/5/25 09:31, Nobuhiro Iwamatsu wrote:
+static const struct iommu_ops visconti_atu_ops = {
+ .domain_alloc = visconti_atu_domain_alloc,
+ .probe_device = visconti_atu_probe_device,
+ .release_device = visconti_atu_release_device,
+ .device_group = generic_device_group,
+ .of_xlate = visconti_atu_of_xlate,
+ .pgsize_bitmap = ATU_IOMMU_PGSIZE_BITMAP,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = visconti_atu_attach_device,
+ .detach_dev = visconti_atu_detach_device,

The detach_dev callback is about to be deprecated. The new drivers
should implement the default domain and blocking domain instead.

+ .map = visconti_atu_map,
+ .unmap = visconti_atu_unmap,
+ .iova_to_phys = visconti_atu_iova_to_phys,
+ .free = visconti_atu_domain_free,
+ }
+};

Best regards,
baolu