Re: [PATCH] fix ppc ioremap prototype

[David S. Miller]

On Thu, 4 Sep 2003 07:15:35 -0700
Matt Porter <mporter@xxxxxxxxxxxxxxxxxxx> wrote:

> The global space method doesn't allow for proper resource management
> in systems with a small floating physical address window but a huge
> bus address space to be accessed.  MPC8245's DAC scheme is a good
> example of this as well as numerous Xscale PCI implementations.
> Paul's suggestion would allow the removal of lots of ugly hacks.

There is nothing that cannot be represented with a big integer.
Encode the "window" in the upper bits, or whatever, get creative.
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