Just a guess, but it sounds like you might want to use magic instructions
to trigger the hardware barrier. The magic instructions would create a
special request to the cache controller. See how the LogTM code uses
magic instructions to begin and commit a transaction.
Then the barrier functionality could be implemented in the SLICC cache
controllers.
--Mike
> Hi,
> We want to implement a barrier function using Gems toolset. Basically,
> each processor has a set of their own variables and we would like to
> compare the corresponding variables in other processors before the
> execution proceeds to the next step. You can say it is exactly a
> hardware based barrier implementation. Can someone tell us how to do it
> in GEMS? The variables are calculated using the Ruby interface.
>
> Thanks,
> Sreenivasan.
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