On Saturday 08 September 2007 09:20, Linus Torvalds wrote: > On Sat, 8 Sep 2007, Nick Piggin wrote: > > So, can we finally noop smp_rmb and smp_wmb on x86? > > Did AMD already release their version? If so, we should probably add a > commit that does that in somewhat early 2.6.24 rc, and add the pointers to > the whitepapers in the commit message.
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24593.pdf AMD64 Architecture Programmer's Manual Volume 2: System Programming section 7.2: Multiprocessor Memory Access Ordering, a paragraph on the first page says "Loads do not pass previous loads (loads are not re-ordered). Stores do not pass previous stores (stores are not re-ordered)" So, yes, it should be easy to do. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
