Using Cache As Ram for K8

Li-Ta Lo ollie at
Fri Jun 25 09:27:01 CEST 2004

On Thu, 2004-06-24 at 12:33, Tony Cheng wrote:
> It's great to hear that AMD CPU allow software to access Cache, it's
> absolutely not allowed in the Intel CPU which I just finish working on.
> I guess you must turned off cache completely and CPUs are not prefetching,
> snooping and ete. before you use it as memory, right? I'm not that
> knowledgable at this point with AMD Opteron. but this is pretty intrigueing.
> I will try it someday, I hope AMD supports this type of use. In another
> word, AMD will not scew up the cache data software saved at the background
> and SW saving data to it doesn't impact CPU function.
> I'm really try to ask you about another question, you have mentioned the AMD
> Serenade Mainboard, Do you have the LinuxBIOS source code for this AMD
> Serenade Mainboard? I couldn't find it in the Sorceforge CVS. (Only AMD Solo
> and Quatet are available there)

The AMD Serenade board support for ROMCC LinuxBIOS is in the CVS. Please
do a "cvs update -dP". The cache as ram version is not committed yet.


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