On Mon, May 09, 2022 at 08:15:52AM +0200, Christoph Hellwig wrote: > So I think the big problem pointed out by Robin is that existing DTs > might not take this into account. I'd say that the biggest problem isn't in the DT part but in the drivers using the dma_map_resource() method since they don't expect the non-uniform DMA-direct mapping can be available. > So I think we need to do a little > research and at least Cc all maintainers and lists for relevant in-tree > DTs for drivers that use dma_map_resource to discuss this. Right. I'll send the next patchset revision out with all possibly interested maintainers and lists in Cc of this patch. -Sergey >
