On Wed, Apr 12, 2023 at 09:32:30PM +0100, Conor Dooley wrote: > On Wed, Apr 12, 2023 at 12:08:53PM +0100, Prabhakar wrote: > > > Note, > > - This series requires testing on Cores with zicbom and T-Head SoCs > > As I said last time, I dunno what actual Zicbom stuff exists, other than > perhaps the Ventana lads having something. I did some tyre kicking on my > D1 and it was fine, although nothing has actually changed materially for > either of them with this series in v8.. And as saying before, there is absolutely no reason to add non-standard non-coherent DMA support and let this cancer creep. If you want Linux support implement Zicbom, be that in hardware or the SBI.