From: <ckim@etri.re.kr>
To: <kernelnewbies@kernelnewbies.org>
Subject: does dma_alloc_coherent setup iommu page table?
Date: Wed, 29 Sep 2021 16:15:13 +0900 [thread overview]
Message-ID: <007201d7b501$bf0a5880$3d1f0980$@etri.re.kr> (raw)
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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.
Thanks!
Chan Kim
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next reply other threads:[~2021-09-29 7:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-29 7:15 ckim [this message]
2021-09-29 8:18 ` does dma_alloc_coherent setup iommu page table? ckim
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