does dma_alloc_coherent setup iommu page table?

ckim at ckim at
Wed Sep 29 03:15:13 EDT 2021

Hello all,

When the driver calls dma_alloc_coherent for a device, and if the device
uses iommu, is the table entry for the iommu setup for the dma_handle?

Seeing the struct device has something related to iommu, I guess so..

Any help appreciated.


Chan Kim

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the Kernelnewbies mailing list