On Wednesday 08 August 2007 18:59:08 Jeff Garzik wrote: > Michael Buesch wrote: > > writel doesn't guarantee flushing either. > > readl does. > > > Not quite -- there are multiple kinds of flushing. You're thinking > about flushing across PCI bridges, which is correct, but you also have > CPU write posting and CPU write ordering and such. > > Without taking all that into account, you might be tempted to think that > __raw_readl() will perform all flushes necessary following a > __raw_writel() -- but that would be incorrect.
So, kind of... Better use writel(swab32(... unless you like being shot into the foot. -- Greetings Michael. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
