Re: [PATCH] Natsemi Geode GXn PM support and extended MMX

[Alan Cox]

> which allows APM to function. Which brings me on to my next question, does 
> APM on Geode GXn work? The datasheet specifies that in order for the 
> processor to enter suspend mode (in response to SUSP# assertion) the first 
> criteria which must be met is that the USE_SUSP bit must be set (CCR2 bit 
> 7). Part two of the patch simply enables extended MMX instructions for the 
> GXn.

Be very careful playing with Cyrix/Geode stuff. In the APM case the BIOS 
is doing the right thing on every box I have ever seen. The extended MMX
one looks right, providing we don't turn it on for any CPU lacking it