Re: [RFT] e100 driver on ARM

From: H. Peter Anvin
Date: Thu Apr 26 2007 - 12:24:53 EST


Lennart Sorensen wrote:
>
> My suspicision (although it is only that) is that the PXA255 trying to
> access memory may cause interruptions in PCI bus master transfers, which
> is of course not permitted by the PCI spec (at least the way I read it).

Why wouldn't that be permitted? It, in fact, happens all the time (the
host bridge withdraws the GNT# line and raises STOP#, which does a
Termination With Data of the bus transfer.) This is a normal event and
if you can't handle it you won't work with many host bridges at all.

-hpa
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