[RFC] powerpc: Merge 32/64 cacheflush code

[Milton Miller]

On Mon Dec 19 16:44:10 EST 2005, David Gibson wrote:

> +extern void wback_dcache_range(unsigned long start, unsigned long 
> stop);
> +extern void wback_inval_dcache_range(unsigned long start, unsigned 
> long stop);

I think that while we are here we should change the arguments to be 
pointers (void *).   The assembly doesn't care, and almost all of the 
users are casting from pointer to usigned long at the call site, with 
dart being the exception.  The instruction cache flush should also 
change.

milton