[haiku-development] Re: In My Infinite Free Time

  • From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Mon, 20 Apr 2009 11:02:02 +0200 CEST

Johannes Wischert <johanneswi@xxxxxxxxx> wrote:
> I realy would be quite gratefull for some help since I did almost no
> arm assembler until now ;) I would most probably also need help for
> the MMU part but I don't think I will find much help there since 
> thats
> quite some specialised knowledge ;)

MMU programming usually isn't that hard - you only need to enable it, 
and encode the mapping information set via the arch interface into 
whatever the hardware needs.
Having had a brief look at ARM's MMU implementation, it looks like it's 
a mixture of what x86 and PPC are doing, that is, it has fixed page 
tables (as on x86), as well as direct access to TLB registers (more 
like PPC). You can probably ignore the latter for now.

Bye,
   Axel.


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