From: Segher Boessenkool <[email protected]>
Date: Sun, 10 Sep 2006 22:01:20 +0200
> Why not just keep writel() etc. for *both* purposes; the address cookie
> it gets as input can distinguish between the required behaviours for
> different kinds of I/Os; it will have to be setup by the arch-specific
> __ioremap() or similar.
This doesn't work when the I/O semantics are encoded into the
instruction, not some virual mapping PTE bits. We'll have to use
a conditional or whatever in that case, which is silly.
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