On Wed, Jan 26, 2022 at 01:08:04PM +0000, Robin Murphy wrote: > This doesn't make sense to me. The point of dma_alloc_* is you get back a > dedicated DMA buffer which can then be used at any time. In the noncoherent > case you have to put in explicit dma_sync_*() calls around accesses when > the CPU or device is expected to have updated the buffer contents, but it's > still fundamentally the same paradigm.
Exactly. _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
