question on e7500 sizeram

[steven james]

Greetings,

My understanding is that it is used to accomodate PCI memory mappings. The
layout is regular memory, then PCI devices, APICs and flash, then any
physical ram above remap_high goes over the 4Gig mark (for PAE).

G'day,
sjames


On Tue, 3 Dec 2002, Ronald G. Minnich wrote:

> freebios/src/northbridge/intel/E7500/northbridge.c
> 
> In this file there is a variable called remap_high. I assume the function 
> of this is to remap the high memory (512MB) so it is contiguous with the 
> low 512MB. 
> 
> Even when remap_high is true, on -current, I end up with two 512MB 
> segemnts, one at 0 and one at 4 GB. 
> 
> Anybody have any idea as to why this would happen? It's confusing 2.4.19 
> from what I can see.
> 
> ron
> 
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