>> 
>> In other words — the back-end (slow path) memory interface should look 
>> ‘transactional’…?
> 
> Yeah, the semantics should be tied to what TM would give you. We can
> always be more safe than TM in our fallback implementation, but I
> wouldn't want to see semantic optimizations tied to the MMIO
> implementation put in.
> 
> This is mostly theory though, try to write the code and see where things
> fall apart, then we'll be in a much better position to rationalize on
> where to do things differently.
> 
> 

absolutely. 
Seems like this is a good way forward… thanks all for your input.

Cheers
Mark.




> Alex


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