[PATCH v2 3/9] powerpc/powernv: Remove real mode access limit for early allocations

Nicholas Piggin npiggin at gmail.com
Tue Aug 15 00:51:40 AEST 2017


On Mon, 14 Aug 2017 23:10:50 +1000
Benjamin Herrenschmidt <benh at au1.ibm.com> wrote:

> On Mon, 2017-08-14 at 22:49 +1000, Michael Ellerman wrote:
> > Nicholas Piggin <npiggin at gmail.com> writes:
> >   
> > > This removes the RMA limit on powernv platform, which constrains
> > > early allocations such as PACAs and stacks. There are still other
> > > restrictions that must be followed, such as bolted SLB limits, but
> > > real mode addressing has no constraints.  
> 
> For radix, should we consider making the PACAs chip/node local ?

Yes that's the main goal of the series. I had NUMAization patches
at the end. Just dropped them for now because some of them need
toplogy information that's not available (that's why I was asking
about moving unflattening earlier in boot, but we may be able to
move allocations later too).

Thanks,
Nick


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