On Fri, Dec 23, 2022 at 03:57:22PM +0100, Christoph Hellwig wrote: > On Fri, Dec 23, 2022 at 08:17:31PM +0530, Manivannan Sadhasivam wrote: > > Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > > Btw, if the hardware really does not like a kernel mapping, the > right way is to just keep using the normal dma allocator, but make > sure that there shared-dma-pool with the no-map property for the > device. Sibi posted a series that uses a separate no-map carveout for this usecase: https://lore.kernel.org/lkml/20221213140724.8612-1-quic_sibis@xxxxxxxxxxx/ But that doesn't use dma allocator with shared-dma-pool. Thanks, Mani -- மணிவண்ணன் சதாசிவம்