linux-apus-devel

Prometheus and Linux Driver.

[Adam K. <ako...@co...>]

Hi,

    This is an update on the Prometheus driver for Linux.  The driver now
recognizes PCI cards in all slots and the generic routines allocate
resources to each card.  I believe my problem with KDE and GNOME core
dumping was related to not having the 2.4.17 modules and System.map
installed in the right locations.  I attempted to try to compile in an 8029
PCI ethernet card driver but have come across conflicts with respect to some
defines being set differently for zorro ethernet cards.  Erkki Vaaja has
received a kernel and corresponding files and has been able to boot up with
the Voodoo 3 card.

    The last big hurdle I'm facing is getting the XFree86 4.1.0 to work with
the tdfx driver to take advantage of the hardware acceleration.  The issue
seems to be that the XFree86 driver is looking directly at the BASE ADDRESS
REGISTERS of the PCI card instead of reading the values from the OS.  The
other problem may be that the driver doesn't like the 0x40000000 address for
the IO base.  Unfortunately, there is nothing that I can do since that's
where it happens to be and that address needs to be ioremapped.  This was
the one thing that I had to change in the tdfxfb.c video driver as well.

Adam Kowalczyk

Re: Prometheus and Linux Driver.

[Michel <mi...@da...>]

On Sam, 2002-02-02 at 19:47, Adam Kowalczyk wrote:

>     The last big hurdle I'm facing is getting the XFree86 4.1.0 to work w=
ith
> the tdfx driver to take advantage of the hardware acceleration.  The issu=
e
> seems to be that the XFree86 driver is looking directly at the BASE ADDRE=
SS
> REGISTERS of the PCI card instead of reading the values from the OS.  The
> other problem may be that the driver doesn't like the 0x40000000 address =
for
> the IO base.  Unfortunately, there is nothing that I can do since that's
> where it happens to be and that address needs to be ioremapped.  This was
> the one thing that I had to change in the tdfxfb.c video driver as well.

Looking at xf86EnableIO() in
xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_video.c,
implementing the pciconfig_iobase syscall should be a first step towards
a solution.


--=20
Earthling Michel D=E4nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast