Re: drm bugs hopefully fixed but there might still be one..

[Jean Delvare <khali@linux-fr.org>]

Ho all,

> > Aparently backing out the changes to via's tlb_flush routine fixed
> > it for one VIA user. I've not had a chance to look into it just yet.
> > Worse case we can just drop those changes for 2.6.12

I am that one.

> You mean these changes?
> 
> --- a/drivers/char/agp/via-agp.c        2005-03-24 10:33:45 -08:00
> +++ b/drivers/char/agp/via-agp.c        2005-03-24 10:33:45 -08:00
> @@ -83,8 +83,10 @@
>  
>         pci_read_config_dword(agp_bridge->dev, VIA_GARTCTRL, &temp);
>         temp |= (1<<7);
> +       temp &= ~0x7f;
>         pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, temp);
>         temp &= ~(1<<7);
> +       temp &= ~0x7f;
>         pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, temp);
>  }

Exactlty. I had to revert this one since 2.6.11-bk3, or starting X kills
the machine. By "kill", I mean the real thing, black screen, dead
network, reset is the only choice. This is a (surprise!) VIA-based
motherboard (Asus A7V133-C) with Radeon 9200-based graphics adapter.
Dave Airlie was asking for a tester with such a configuration. I can
test whatever you want. Just tell me what we are looking for :)

With the patch above reverted, 2.6.12-rc1-mm2 seems to work just fine
for me. glxgears is OK and I just had a game of UT (first of the name).
However, I am not a regular gamer so I'm not sure what to look for.

Thanks,
-- 
Jean Delvare