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From: Linus Torvalds <torvalds@linux-foundation.org> Date: Thu, 25 Jan 2007 22:18:21 -0800 (PST) > So on sparc64, "ioport_resource" really is just a container for the actual > per-domain resource buckets that the hardware (within that domain) will > then do the resource allocation from. Afaik. > > But you should actaully verify that with somebody like Davem if you > _really_ care. I cc'd him in case he wants to pipe up and perhaps prove > me wrong. They are all physical addresses of the I/O locations. It just so happens that all the non-memory physicall addresses have some high bit set. So it all works out, but not intentionally, it's merely a side effect of how the physical address space is layed out. - 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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