Subject: Re: [PATCH][RFT] Extended BAT features, take 2

From: Rupert Eibauer <[email-masked]>
Date: Sun, 23 Oct 2005 11:36:51 +0200

On Sunday 23 October 2005 02:39, Paul Mackerras wrote:
> Rupert Eibauer writes:
> 
> > What this patch actually does:
> > - Make CONFIG_PHYS_64BIT selectable for the 6xx family
> 
> Why?  What does this gain us?  

I have I/O resources there which are not reachable in 32 bit mode.

> We still can't use RAM above the 4GB point AFAICS.

Does this mean the page tables do not support 63 bit?

Rupert