On 31.05.2019 19:43, Christoph Hellwig wrote: > On Wed, May 29, 2019 at 02:06:12PM +0000, Laurentiu Tudor wrote: >> Thanks, hope this time everything is fine. > > I've applied it to the dma-mapping tree now. > >> When you get the time, please let me know your ideas on the next steps. > > I think the next step is to move the call to > dma_alloc_from_dev_coherent from dma_alloc_attrs into the ->alloc > instances. The only onces that really need it for now are the > generic and legacy arm dma-direct code, and drivers/iommu/dma-iommu.c > as well as the ARM DMA API code, as those are the ones use for > architectures that declare coherent regions. The other iommus are > not used on OF platforms (at least that's what my analysis said a while > ago, feel free to double check it) Thanks for the details. I'll be OOO next week so probably I'll start looking into it next next week. --- Best Regards, Laurentiu
