[Openchrome-devel] Some HW related questions to VIA:

Thomas Hellström thomas
Thu Nov 13 04:24:53 PST 2008


Benjamin,

Thomas Hellstr?m wrote:
> Hi, Benjamin,
> Thanks for your answer.
>
>> VX800 doesn't support frame buffer dynamically allocated out of 
>> page-locked system memory as Intel does. So the use of system memory 
>> is mainly for texture and command buffers as AGP aperture space 
>> before - except now graphics is reported as PCI type hence GART 
>> function is part the graphics and not chipset.
>>   
>
> Yes. What I'm looking for is information on how to program the 
> Graphics-only GART. To set up, say 16MB of non-contigous system memory 
> for textures and comand / vertex buffers *in addition to* the 
> BIOS-enabled frame-buffer.
>
>

I actually found this information in the Chrome9 DRM patch.
Thanks,
Thomas


> Thanks.
>
> /Thomas
>
>
>





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