Re: many in-tree xorg packages updated

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

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Hello,

On Jun 16, 2009, at 8:10 PM, matthew green wrote:

>    I just noticed that libpciaccess is built only on x86 but it's  
> needed
>   pretty much everywhere else. Hopefully I'll have time to get it
>   working on sparc(64) and macppc in the near future.
>
>
> yeah - i noticed this too.  i tried to get shark to build and that
> was the first lossage... next was the lack of bsdResource.c and
> i gave up at that point.
>
> i'll enable libpciaccess to everyone tonight.

I just looked at the libpciaccess stuff and it needs work. First of  
all it tries to mmap() everything through /dev/mem, who knows what  
else is broken. Anyway, to clean that mess up in a MI way - why don't  
we just add mmap() support to /dev/pci and let each instance allow  
userland to map resources belonging to the bus it represents? No need  
to bother with subordinates since they'll have their own /dev/pci*  
entry, we just need to pick up the right bus number when scanning for  
devices. That would also give us instant multihead-with-multiple-cards  
on all archs.

Not sure about shark yet, Rev. 5 doesn't care since it uses wsfb but  
rev. 4 maps the graphics chip's registers through /dev/ttyE* so mmap  
offset == bus address. More importantly, it also maps IO registers the  
same way as we do on macppc - they're at a machine dependent offset  
which is #defined in param.h and in shark's case we really, really  
need them, only the blitter registers are memory mapped, everything  
else is in extended VGA registers.

have fun
Michael

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