On Tuesday 07 March 2006 19:30, David Howells wrote:
> > You're not supposed to do it this way anyways. The official way to access
> > MMIO space is using read/write[bwlq]
>
> True, I suppose. I should make it clear that these accessor functions imply
> memory barriers, if indeed they do,
I don't think they do.
> and that you should use them rather than
> accessing I/O registers directly (at least, outside the arch you should).
Even inside the architecture it's a good idea.
-Andi
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