Re: X server and PCI_MAGIC_IO_RANGE

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

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Hello,
On Apr 22, 2011, at 3:58 AM, KIYOHARA Takashi wrote:

> From: Michael <macallan%netbsd.org@localhost>
> Date: Thu, 21 Apr 2011 15:30:00 -0400
>
> > That doesn't cause the failure - during the config phase Xorg doesn't
> > really try to map IO, only later on.
> > Xorg -configure is known broken since Xorg 1.9.x got imported.
> > If your graphics device is PCI then Xorg should Just Work(tm) without
> > a config file.
>
> hmm...
>
> I prepared xorg.conf for my ofppc the other day, and executed startx.
> Is the cause of this Fatal server error quite different?
> I apologize.  I am not investigating this error so much.  ;-<
>
> [   764.689] (II) TDFX(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0,  
> hwp->PIOOffset is 0x0d00
> [   764.690] (WW) xf86MapVidMem: could not mmap screen  
> [s=10000,a=a0000] (Invalid argument)
> Fatal server error:
> [   764.708] AddScreen/ScreenInit failed for driver 0

That's the tdfx driver trying to map the VGA aperture. Are you using  
voodoofb?

> In addition, my bebox hangs up without logging at all.  It doesn't
> respond to ping(1) at this time.
> Do you think that the problem of this bebox is different?

I guess the tdfx driver needs a bunch of #ifdefs to get rid of the  
vgahw references on hardware where it isn't useful ( like anything  
that doesn't use vga text mode )
If you're using genfb you may want to add this to your kernel config:
options WSFB_FAKE_VGA_FB
this will allow the Xserver to map the first 128kB of video memory at  
0xa0000. Not that it will do anything useful with it but it should  
shut up the error above.

have fun
Michael

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