On Wed, Mar 16, 2011 at 12:32:56PM -0400, Jung-uk Kim wrote: > On Tuesday 15 March 2011 08:45 pm, Maxim Dounin wrote: > > This isn't really different as long as GENERIC kernel used, as > > GENERIC defines I486_CPU. > > Fixed in r219698, sorry. > > Actually, I think we should remove i486 from GENERIC at some point. > It has too many limitations. For example, I really love to implement > atomic 64-bit mem read/write using cmpxchg8b (no 0xf00f joke, please) > but I cannot do that cleanly without removing I486 support or > checking cpu_class at run-time. :-(
if we drop i486 I think it makes sense to require something that has at least SSE2, thus we can have the same expectations as on amd64. and we can use sse2 unconditionally (str*, mem* etc.) _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
