[PATCH] add Kconfig option for optimizing for cell

David Woodhouse dwmw2 at infradead.org
Sat Sep 15 23:13:55 EST 2007

On Sat, 2007-09-15 at 02:21 +0200, Arnd Bergmann wrote:
> Since the PPE on cell is an in-order core, it suffers significantly
> from wrong instruction scheduling. This adds an Kconfig option that
> enables passing -mtune=cell to gcc in order to generate object
> code that runs well on cell.

Do we have an option which is useful for a multiplatform kernel (and for
userspace) and which lies between the two extremes? Something which will
improve performance on Cell (and POWER6?) without sucking too hard


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