Re: discontiguous memory platforms

From: Ralf Baechle (
Date: Wed May 01 2002 - 20:32:50 EST

On Thu, May 02, 2002 at 03:27:25AM +0200, Andrea Arcangeli wrote:

> > - 256MB at physical address 0
> > - 512MB at physical address 0x80000000
> > - 256MB at physical address 0xc0000000
> > - The entire rest of the memory is mapped contiguously from physical
> > address 0x1:00000000 up.
> > All available memory is mapped from the lowest address up.
> Is this a numa? If not then you should be just perfectly fine with
> discontigmem with this chip.

This is a system on a chip with memory controllers on die. In theory
multiple of it can be combined to brew some crude ccNUMA system but I
don't know if people are actually doing that.

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