Enable byte swapping for r600 Hardware

[Alex Deucher]

On 4/3/09, Eduard Fuchs <edfuchs at uni-kassel.de> wrote:
> Hi,
>
>  Am Donnerstag 02 April 2009 18:42:37 schrieb Alex Deucher:
>
> > On 4/2/09, Eduard Fuchs <edfuchs at uni-kassel.de> wrote:
>  > > Hi,
>  > >
>  > >  I have tested this patch on the MPC8641HPCN board (PowerPC) with HD2400
>  > > PCIe card. Currently I tested only 32bpp mode, so in 16bpp mode the
>  > > swapping is disabled.
>  > >
>  > >  I used the driver from git in the version 6.10.0 (with git tag
>  > > xf86-video- ati-6.10.0). Unfortunately crash the latest driver version
>  > > (6.12) on our system.
>  >
>  > Thanks!  I've gone ahead and committed a slightly cleaned up version
>  > of this patch:
>  > 215e12f9c0e8ac62c23af1add776ef88f9a0dc54
>  >
>  > What sort of problems are you seeing with 6.12?
>
>
> With the lates ati driver the server crashed. Maybe the server is too old for
>  this driver.

Any chance you could get a full backtrace with gdb?  Maybe a missing
byteswap in the newer object table parsing.  Can you also send me a
copy of your video bios?

to get the video bios (as root):
cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

Alex