On Tue, Oct 31, 2006 at 11:53:02AM -0800, Roland Dreier wrote: > > Here's what I don't understand: according to PCI rules, pci config read > > can bypass pci config write (both are non-posted). > > So why does doing it help flush the writes as the comment claims? > > No, I don't believe a read of a config register can pass a write of > the same register. (Someone correct me if I'm wrong) I don't see anything in the PCI spec which forbids it, but I would expect that hardware designers don't actually do that in practice. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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