On Fri, Dec 23, 2022 at 09:10:39PM +0530, Manivannan Sadhasivam wrote: > 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/ Oh, I've missed that entire thread. I actually stumbled over this today while finding it during a vmap audit..
