On Monday 01 June 2009, Russell King wrote: > I didn't say "for all architectures". I said that the end conditions > need to be the same no matter how DMA is done. > > And yes, it does matter with some cache types. VIPT aliasing caches > and VIVT caches both need to ensure that condition is met, otherwise > userspace doesn't see the data. Ok, thanks for the explanation. > While we can hand-wave and say "some other part of the code should > handle this" I've had that disucssion several times, and that's where > this requirement eventually was stated. And, really, I'm not going > to re-discuss it yet again - I really don't have time or motivation > at present to be involved in yet another hand-waving egotistical > debate over it. I was not trying to start a debate over this, just being curious. Arnd <>< -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
