Re: CVS commit: src

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

> > > + * Make a kernel mapping valid for I/O, e.g. non-cachable.
> > > + * Alignment and length constraints are as-if NBPG==PAGE_SIZE.
 :
> > What is this miracle, however?
> 
> IIRC that miracle is about mapping the flash which is not in kseg1.
> The story included lots of details on how mapping an arbitrary physical
> address was much easier on Mach ;)

Why not simply using bus_space(9) for non-cachable I/O?
(like sys/arch/arc/arc/bus_space_sparse.c)

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Izumi Tsutsui