Messages in this thread |  | | Date | Wed, 22 Aug 2001 17:40:48 -0700 (PDT) | Subject | Re: With Daniel Phillips Patch | From | "David S. Miller" <> |
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From: "Justin T. Gibbs" <gibbs@scsiguy.com> Date: Wed, 22 Aug 2001 18:01:40 -0600
It is opaque and should be able to represent all dma (or I would prefer bus) addresses in the system. The examples I've seen where people assume it to be 32bits in size are, well, broken.
It is the type to be used for 32-bit SAC based DMA. DMA-mapping.txt is pretty clear about this.
In fact, because it is well documented, ia64 is in direct violation of the API. I've been mentioning things like this since the beginning.
Later, David S. Miller davem@redhat.com - 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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