[PATCH 2/5] powerpc/cell: Drop support for 64K local store on 4K kernels

Jeremy Kerr jk at ozlabs.org
Mon Aug 10 18:14:09 AEST 2015

Hi Michael,

> Back in the olden days we added support for using 64K pages to map the
> SPU (Synergistic Processing Unit) local store on Cell, when the main
> kernel was using 4K pages.
> This was useful at the time because distros were using 4K pages, but
> using 64K pages on the SPUs could reduce TLB pressure there.
> However these days the number of Cell users is approaching zero, and
> supporting this option adds unpleasant complexity to the memory
> management code.
> So drop the option, CONFIG_SPU_FS_64K_LS, and all related code.

Yep, I'd be happy to drop this - impact should be little to none.

Acked-by: Jeremy Kerr <jk at ozlabs.org>



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