Re: Fix ia64 bit ops: Full barriers for bit operations returning a

Christoph Lameter
2006-04-04T14:40:42Z

On Tue, 4 Apr 2006, Zoltan Menyhart wrote:

> Could you consider using some cache hints, like "ld8.bias.nta"?
> "bias" is a hint to acquire exclusive ownership.
> "nta" is a hint to allocate the cache line only in L2
> (and side effect: to bias it to be replaced).
> All of the Itanium 2 processor's atomic instructions are handled
> exclusively by the L2 cache.

Could you come up with a patch? Currently, I do not seem to be able to
spend enough time on it.