Re: iomapping a big endian area

[James Bottomley]

On Sat, 2005-04-02 at 20:08 -0800, David S. Miller wrote:
> > Did anyone have a preference for the API?  I was thinking
> > ioread32_native, but ioread32be is fine too.
> 
> I think doing foo{be,le}{8,16,32}() would be consistent with
> our byteorder.h interface names.

Thinking about this some more, I know of no case of a BE bus connected
to a LE system, nor do I think anyone would ever create such a beast, so
our only missing interface is for a BE bus on a BE system.

Thus, I think io{read,write}{16,32}_native are better interfaces ...
they basically mean pass memory operations without byte swaps, so
they're well defined on both BE and LE systems and correspond exactly to
our existing _raw_{read,write}{w,l} calls (principle of least surprise).

James


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