MSR_SPE - being turned off...

[Morrison, Tom]

I have both a MPC8548 SBC and MPC8572 system that are running different
flavors of the 

same Linux - 2.6.23.

 

I explicitly am turning it on very early on. Later, I have an
application that is compiled 

with SPE instructions (e.g.: evstdd) , and there is where the problems
happen. If I explicitly

make sure there are NO SPE instructions in the application, nothing bad
happens! 

 

I am polling the MSR - and it seems the SPE is turned OFF? 

 

What have I done wrong and/or has there been fixes in later kernels that
I should be aware of that might help this issue?

 

Tom Morrison
Principal Software Engineer

EMPIRIX 
20 Crosby Drive - Bedford, MA  01730
p: 781.266.3567 f: 781.266.3670 
email: tmorrison at empirix.com <mailto:tmorrison at empirix.com>  
www.empirix.com <http://www.empirix.com/> 




 

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