re: xsrc/50429: Xserver fails to start on Ultra-5 andNetBSD/sparc64 7.0

[matthew green <mrg%eterna.com.au@localhost>]

Michael writes:
> The following reply was made to PR xsrc/50429; it has been noted by GNATS.
> 
> From: Michael <macallan%netbsd.org@localhost>
> To: gnats-bugs%NetBSD.org@localhost
> Cc: 
> Subject: Re: xsrc/50429: Xserver fails to start on Ultra-5 andNetBSD/sparc64
>  7.0
> Date: Fri, 20 Nov 2015 08:26:30 -0500
> 
>  >  pcictl dump shows:
>  >  
>  >      Base address register at 0x10
>  >        type: 32-bit nonprefetchable memory
>  >        base: 0xe1000000, not sized
>  >      Base address register at 0x14
>  >        type: i/o
>  >        base: 0x00000000, not sized
>  >      Base address register at 0x18
>  >        type: 32-bit nonprefetchable memory
>  >        base: 0xe2000000, not sized
>  >   =
>  >  
>  >  which isn't what you say should be seen at the BAR at 0x18?
>  
>  Some versions of the U5/U10 firmware don't setup the MMIO BAR at 0x18,
>  which seems to trigger some interesting failure in the
>  xf86-video-mach64 driver. So it will likely Just Work(tm) in your case
>  as well.

except it doesn't.

...
[    62.149] (WW) xf86EnableIO -1
[    62.149] (II) xf86EnableIO: ffffffffffffffff
[    62.149] (WW) Can't map IO space!
[    62.162] (--) PCI:*(1:1:2:0) 1002:4750:0000:0000 rev 92, Mem @ 0xe1000000/16777216, 0xe2000000/4096, I/O @ 0x00000000/256, BIOS @ 0x????????/131072
[    62.248] (EE) listPossibleVideoDrivers: trying /dev/fb0
[    62.249] (EE) listPossibleVideoDrivers: trying /dev/fb1
[    62.250] (EE) listPossibleVideoDrivers: trying /dev/fb2
[    62.250] (EE) listPossibleVideoDrivers: trying /dev/fb3
[    62.251] (EE) listPossibleVideoDrivers: trying /dev/fb4
[    62.251] (EE) listPossibleVideoDrivers: trying /dev/fb5
[    62.252] (EE) listPossibleVideoDrivers: trying /dev/fb6
[    62.252] (EE) listPossibleVideoDrivers: trying /dev/fb7
[    62.253] (EE) listPossibleVideoDrivers: trying /dev/fb8
[    62.253] (EE) listPossibleVideoDrivers: trying /dev/fb9
...
[    62.839] (--) Using wscons driver on /dev/ttyE1 in pcvt compatibility mode (version 3.32)
[    62.839] (--) using VT number 2
[    62.840] (WW) xf86EnableIO 8
[    62.840] (II) xf86EnableIO: ffffffffffffffff
[    62.840] (WW) Can't map IO space!
[    62.840] (EE) No devices detected.
[    62.841] 
Fatal server error:
[    62.842] no screens found

oh wait, this might be a wscons setup issue.  there is no
getty running, for instance.


.mrg.