[PATCH 2/4] powerpc/64s: Add slb_full_bitmap rather than hard-coding U32_MAX

[Segher Boessenkool]

On Thu, Jan 17, 2019 at 11:13:26PM +1100, Michael Ellerman wrote:
> The recent rewrite of the SLB code into C included the assumption that
> all CPUs we run on have at least 32 SLB entries. This is currently
> true but a bit fragile as the SLB size is actually defined by the
> device tree and so could theoretically change at any time.

It also is guaranteed by the architecture, since at least 2.02, FWIW.


Segher