Re: [PATCH] (Longhaul 1/5) PCI: Protect bus master DMA from Longhaul by rw semaphores

Alan Cox
2006-06-29T15:36:26Z

Ar Iau, 2006-06-29 am 14:03 +0200, ysgrifennodd Bart Hartgers:
> > "snooping". So we do need the cache sorting out.
> >
>
> If I understand correctly, trouble occurs when the processor tries to
> snoop? Would disabling (via MSR) and flushing the caches before changing
> the frequency help in that case?

I would think so. Some other processors have similar requirements for
deep sleeping.

Alan