Hello, I saw a good bit of discussion about CONFIG_MIPS_UNCACHED but still i am yet to know... If I want to use CONFIG_MIPS_UNCACHED (ignoring performance) what all the side-effects and any restrictions that linux should take care in software ? I observed something surprising on my R4k mips system(virtually indexed caches), after i use this option my driver never got status updation by device in transmit and receive decriptors in system memory , Irrespective of I (flushed+invalidate) caches or not... if i don't use CONFIG_MIPS_UNCACHED then before checking status I need to (flush+invalidate) cache and whole thing works great... Regards, Ashish
