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Re: DISCONTIGMEM suuport on 32 bits MIPS

To: Franck <vagabon.xyz@gmail.com>
Subject: Re: DISCONTIGMEM suuport on 32 bits MIPS
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 30 Sep 2005 00:50:25 +0100
Cc: linux-mips@linux-mips.org
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On Mon, Sep 26, 2005 at 02:46:02PM +0200, Franck wrote:

> > IP27 currently the only system that absolutely needs discontiguous
> > memory in order to work at all.  A few other systems could make use of
> > discontiguous memory to reduce the waste of memory - the family of
> > Broadcom SB1 based systems comes to mind.
> 
> Isn't discontiguous memory common for embedded system as well ? I
> thought so...Anyways can we make discontiguous memory thing move into
> generic MIPS code so every future needs for that will profit ? I
> looked at other arch, and they seem to implement it that way (in
> arch/xxx/mm/discontig.c).

Yes, that would be a good thing.  There are several platforms that could
make good use of discontiguous memory support such as Broadcom's Sibyte
SoCs with their insanely large hole in the memory map but also others.

  Ralf

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