On Tue, Jul 02, 2013 at 01:58:13PM +0300, Ville Syrj?l? wrote: > Also IIRC someone told me that w/ uncached mappings the caches aren't > snooped even on LLC platforms. If that's true, MOCS seems even more > dangerous since the client could easily mix cached and uncached > accesses. I don't really understand why uncached mappings wouldn't > snoop on LLC platforms since the snooping should be more or less free. Who said that? Doesn't appear to be the case on SNB/IVB/HSW as far as I can tell. -Chris -- Chris Wilson, Intel Open Source Technology Centre
