[patch 3/3] cell: prevent alignment interrupt on local store
paubert at iram.es
Thu Apr 12 18:31:36 EST 2007
On Thu, Apr 12, 2007 at 04:38:10PM +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2007-04-12 at 08:33 +0200, Olaf Hering wrote:
> > On Thu, Apr 12, Benjamin Herrenschmidt wrote:
> > > Gets altivec and stops working on POWER5 ? no deal :-)
> > If there is a significant performance gain (not only 9%) and if
> > -mcpu=$cell does not generate instructions that wont work on other
> > altivec capable cpus and if rpm gets a target ppcaltivec.rpm (or
> > similar), as separate binary tree can be done.
> -mcpu=cell can possibly generate things that won't run on 970 and 74xx.
> There are some new altivec instructions among others...
Any pointer to a document describing the differences?
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