Re: sparsemem support for mips with highmem

[C Michael Sundius <Michael.sundius@xxxxxxxxxx>]

Thomas Bogendoerfer wrote:
> On Fri, Aug 15, 2008 at 09:12:14AM -0700, C Michael Sundius wrote:
>   
> > yes,  actually the top two bits are used in MIPS as segment bits.
> >     
>
> you are confusing virtual addresses with physcial addresses. There
> are even 32bit CPU, which could address more than 4GB physical
> addresses via TLB entries.
>
> Thomas.
>
>   
Ah, your right. thanks.  "but it's not necessar*il*y a good idea". That 
is to say, we don't put
memory above 2 GiB. No need to make the mem_section[] array bigger than 
need be.

This gives further credence for it to be a configurable in Kconfig as well.

Mike