On Wed, 2021-08-25 at 06:36 -0700, Dan Williams wrote: > > > > > > > > The problem here is that cpuid_eax() and cpuid_ebx() don't even exist on > [snip] > It can't compile because the arch dependencies are not stubbed out > like other arch specific helpers. I think this is something to revisit > if / when concepts similar to the "enqcmd" instruction appear on other > archs. I think you're confusing ioat and idxd? :) The ioat driver (which this patch is against) uses cpuid_eax() and cpuid_ebx() above, and really if a driver uses that then it can only possibly run on IA :) I'm not sure it makes sense to abstract out things such as dca_enabled_in_bios() to a general architecture thing either? johannes
