[PATCH 7/9] ARM: Improve the L2 cache performance when PL310 is used

[Russell King - ARM Linux]

On Tue, Aug 31, 2010 at 02:58:41PM +0100, Catalin Marinas wrote:
> With this L2 cache controller, the cache maintenance by PA and sync
> operations are atomic and do not require a "wait" loop. This patch
> conditionally defines the cache_wait() function.
> 
> Since L2x0 cache controllers do not work with ARMv7 CPUs, the patch
> automatically enables CACHE_PL310 when only CPU_V7 is defined.

This should be a run-time test, as we're moving towards integrating
ARMv6 and ARMv7 support into a single kernel image.