Messages in this thread | | | Date | Mon, 10 Apr 2006 22:49:33 -0700 (PDT) | Subject | Re: [RFC/PATCH] remove unneeded check in bcm43xx | From | "David S. Miller" <> |
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Tue, 11 Apr 2006 11:46:12 +1000
> But ppc64 hits the problem and at this point, there is nothing > I can do other than either implementing a split zone allocation mecanism > in the ppc64 architecture for the sole sake of bcm43xx (ick !) or doing > some trick with the iommu...
I think allowing DMA mask range limiting in the IOMMU layer is going to set a very bad precedence, just don't do it.
It's 2006, we should be way past the era of not putting the full 32 PCI DMA address bits in devices. In this day and age it is simply inexscusable.
Maybe we could understand chips coming out 8 years ago when a lot of designs were transitioning from ISA to PCI, but that no longer applies in any way today. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org 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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