On Thu, 17 Dec 2009, Russell King wrote: > > That's not entirely true. If you have write back caches which are not DMA > coherent, you need to as a minimum: > > - on write, clean the cache to ensure that the page is up to date with data > held in cache. > > - on read, you must ensure that there are no potential write-backs before > the read commenses and invalidate at some point. Right you are. Linus -- 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
