Re: nforce2 and agpgart

["Carl D. Blake" <carl@boeckeler.com>]

On Thu, 2002-12-26 at 12:52, Jeff Nguyen wrote:
> That's strange because my Red Hat kernel did not enable DMA.
> Did you have to run hdparam to change the IDE setting?
> 

Yes, I had to run hdparm to setup the IDE hard drive for maximum
performance.

> Jeff
> 
> ----- Original Message -----
> From: "Carl D. Blake" <carl@boeckeler.com>
> To: "Jeff Nguyen" <jeff@aslab.com>
> Sent: Thursday, December 26, 2002 10:51 AM
> Subject: Re: nforce2 and agpgart
> 
> 
> > On Mon, 2002-12-23 at 16:59, Jeff Nguyen wrote:
> > > Carl,
> > >
> > > Are you using the onboard IDE controller for your hard disk?
> > > If so, please check to see if DMA is enabled or not.
> > >
> > > Jeff
> > >
> >
> > I am using the onboard IDE controller and DMA is enabled.
> >
> > > ----- Original Message -----
> > > From: "Carl D. Blake" <carl@boeckeler.com>
> > > To: <linux-kernel@vger.kernel.org>
> > > Sent: Monday, December 23, 2002 2:40 PM
> > > Subject: Re: nforce2 and agpgart
> > >
> > >
> > > > On Mon, 2002-12-23 at 14:16, Bongani Hlope wrote:
> > > > > On Mon, 2002-12-23 at 20:50, Carl D. Blake wrote:
> > > > > > I'm having trouble getting agpgart support to work with an nforce2
> > > > > > chipset.  Is this supported on any kernels?  I'm running a Redhat
> 7.1
> > > > > > system with Redhat's 2.4.9-21 kernel.
> > > > >
> > > > > Try to use a newer kernel from Redhat, because that kernel was
> around
> > > > > looong before nforce was released. IIRC support for nforce2 was
> added
> > > > > around 2.4.19
> > > > >
> > > >
> > > > I just upgraded to the 2.4.18 kernel provided by Redhat and it didn't
> > > > make any difference.  The message I get in dmesg is:
> > > >
> > > > Linux agpgart interface v0.99 (c) Jeff Hartmann
> > > > agpgart: Maximum main memory to use for agp memory: 439M
> > > > agpgart: unsupported bridge
> > > > agpgart: no supported devices found.
> > > >
> > > > You suggested trying 2.4.19, so I downloaded kernel 2.4.20 from
> > > > kernel.org and compared its agp code (drivers/char/agp) with the code
> in
> > > > 2.4.18.  There are a few differences - such as supporting AMD 8151 -
> but
> > > > nothing that indicates improved support for agpgart on the nforce2
> > > > chipset.  The changelog for 2.4.20 indicated some added support for
> the
> > > > nforce2 chipset, but that seems to be support for the audio and
> network
> > > > portions of the chipset, not agp.  I was able to incorporate the audio
> > > > changes manually for kernel 2.4.18 by using Nvidia's patches, but I
> > > > can't get agp to work.
> > > >
> > > > Any other suggestions?  Thanks for your help.
> > > > > --
> > > > > For future reference - don't anybody else try to send patches as vi
> > > > > scripts, please. Yes, it's manly, but let's face it, so is
> > > > > bungee-jumping with the cord tied to your testicles.
> > > > >
> > > > >                 -- Linus
> > > > --
> > > > Carl D. Blake
> > > > Director of Engineering
> > > > Boeckeler Instruments, Inc.
> > > > 4650 S. Butterfield Dr.
> > > > Tucson, AZ  85714
> > > >
> > > > Phone: 520-745-0001
> > > > FAX: 520-745-0004
> > > > email: carl@boeckeler.com
> > > >
> > > > .com
> > > >
> > > > -
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> > >
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> > --
> > Carl D. Blake
> > Director of Engineering
> > Boeckeler Instruments, Inc.
> > 4650 S. Butterfield Dr.
> > Tucson, AZ  85714
> >
> > Phone: 520-745-0001
> > FAX: 520-745-0004
> > email: carl@boeckeler.com
> >
> > .com
> >
-- 
Carl D. Blake
Director of Engineering
Boeckeler Instruments, Inc.
4650 S. Butterfield Dr.
Tucson, AZ  85714

Phone: 520-745-0001
FAX: 520-745-0004
email: carl@boeckeler.com

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