It's in there, don't worry :-), in ivtv-driver.c, just use it and everything
should be fine.  You can do pcitweak -r PCIID 0x40 to see the setting,
or pcitweak -w PCIID 0x40 0xffff on older driver versions to get the same
effect as the driver now sets it.

Thanks,
Chris
On Wed, Mar 23, 2005 at 09:27:40PM -0300, Robson Braga Araujo wrote:
> On Wed, Mar 23, 2005 at 12:28:19PM -0600, Chris Kennedy wrote:
> > Try this patch to 0.3.2l, maybe will help, I don't think we need the
> > vsync wait anymore for OSD DMA.  The actual thing that seems to have
> > fixed this on my VIA and looks like a very promising fix, and the thing
> > I've been chasing for a very long time, is setting a pci register
> > different than the default.  I just started looking closer at the
> > data sheet Axel Thimm sent us (thanks for that), for the cx23416,
> > which Conexant allowed Hauppauge to release to us finally a few months
> > back.  That had in it, on page 66, the pci register values for PCI Bus
> > configuration.  Well register 0x40 is very interesting, it's the
> > Retry TImeout and also the TRDY Timeout for PCI transfers, ties into
> > the DMA timeouts on VIA and certain motherboards, and DMA errors.  It
> > makes sense logically, I checked the windows driver, looked at the
> > system with a pci bus tool, and saw there the values are 0xff for
> > both, or 0x0000ffff for register 0x40, ours in linux (the default
> > acording to the datasheet) happens to be 0x00008080.  So I maxed this
> > out, haven't had a DMA error or system lockup on my VIA system since.
> 
> This looks very interesting! Can you tell us how to change it? I did not
> see any pci setting in the patch that follows. Should I use setpci or
> something?
> 
> Thanks a lot.
> 
> -- 
> []s,
> Robson Braga Araujo
> Ciencia da Computacao - UFMG      http://www.dcc.ufmg.br/
> Akwan Information Technologies    http://www.akwan.com.br/
> 
>    There's never enough time to do all the nothing you want.
>                 -- Calvin
> 
> 
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-- 
---
 Chris Kennedy / [EMAIL PROTECTED]
  Engineer KMOS-TV/KTBG-FM
  Broadcasting Services Department
  Central Missouri State University


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