Re: Bus space handle type for mips

[Michael <macallan%netbsd.org@localhost>]

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Hello,

On Jun 6, 2010, at 5:39 PM, David Holland wrote:

> On Sun, Jun 06, 2010 at 11:17:38PM +0200, Martin Husemann wrote:
> > This patch makes bus_space_handle_t unsigned again (as it was  
> > before the
> > partial mips64 merges where it changed from u_long to intptr_t).
> >
> > This unbreaks PCI on alchemy boards for me. I don't see why the  
> > handle
> > should be a signed value - am I missing something?
>
> To some extent mips addresses are signed; in particular I believe the
> mapping of the 32-bit address space into the 64-bit address space is
> signed, in the sense of using sign extension for addresses 0x80000000
> to 0xffffffff. (Someone who's actually touched mips64 can probably
> confirm or refute this instantly.)

I remember the same thing.

have fun
Michael

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