[PATCH 5/9] powerpc: Introduce VSX thread_struct and CONFIG_VSX

[Kumar Gala]

On Jun 18, 2008, at 5:58 PM, Paul Mackerras wrote:

> Kumar Gala writes:
>
>> Is VSX mutually exclusive with altivec/fp?  is there a MSR bit for  
>> it?
>
> It's not exclusive, it's an extension of altivec/fp, and yes it has
> its own MSR bit to enable it.

what MSR bit does it use... I'm not seeing the code add or test a new  
MSR bit anywhere.

What exactly do you mean by its an extension of altivec/fp?  Are the  
instructions considered part of altivec/fp or is it just reusing the  
register storage like SPE?

- k