Messages in this thread | | | From | "David S. Miller" <> | Date | Thu, 14 Jun 2001 14:35:21 -0700 (PDT) | Subject | Re: Going beyond 256 PCI buses |
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Benjamin Herrenschmidt writes: > I beleive there will always be need for some platform specific > hacking at probe-time to handle those, but we can at least make > the inx/outx functions/macros compatible with such a scheme, > possibly by requesting an ioremap equivalent to be done so that > we stop passing them real PIO addresses, but a cookie obtained > in various platform specific ways.
The cookie can be encoded into the address itself.
This is why readl() etc. take one arg, the address, not a billion other arguments like some systems do.
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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