Re: 512M RAM support

[bgjung%etri.re.kr@localhost]

Could you let me know if you committed the codes last week? 
If it takes more time, could you post the modified files? 
Or could you post some clues how to support 512M and file list to be 
modified?
----- Original Message ----- 
From: "Matt Thomas" <matt%3am-software.com@localhost> 
To: "Allen Briggs" <briggs%wasabisystems.com@localhost> 
Cc: <port-powerpc%netbsd.org@localhost> 
Sent: Tuesday, June 18, 2002 2:13 AM 
Subject: Re: 512M RAM support

> At 06:52 AM 6/17/2002, Allen Briggs wrote: 
> >On Mon, Jun 17, 2002 at 12:11:19AM -0700, Matt Thomas wrote: 
> > > It's not that simple.  In fact, a bunch of changes need to made. 
> > > I'll try to get that committed sometime this week.  I have those 
> > > changes done for 1.5. 
> > 
> >I assume these are changes to allow the kernel to occupy and use 
> >more than 256MB, correct?  I'd like to see your changes posted here 
> >as a diff before they're committed.  I expect that there are both 
> >platform-specific and generic powerpc parts to the changes.  Is 
> >this correct? 
> 
> Actually, I believe it's all generic ppc-code.  Of course if we 
> ever need more than 512MB, we will have a problem on macppc. 
> The issue is that the kernel KVA space starts to invade device register 
> space above 0x8000000 (USER_SR becomes 0xc so 0xc0000000).  The proper 
> way to fix this is switch macppc to the common ppc bus_space/bus_dma 
> code and use bus_space everywhere. 
> 
> -- 
> Matt Thomas                      Internet:   matt%3am-software.com@localhost 
> 3am Software Foundry    WWW URL: 
http://www.3am-software.com/bio/matt/ 
> Cupertino, CA                  Disclaimer: I avow all knowledge of this
message 
>