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nforce2 and agpgart

DISCUSSION Carl D. Blake 3 participants 8 messages Dec 23, 2002 – Dec 26, 2002 2 messages not in the archive

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#0 lore raw

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.

Signature · 11 lines
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: [email protected]

.com
#1 lore raw
Quoted 3 lines · Carl D. Blake

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

Signature · 5 lines
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
#2 lore raw
Quoted 9 lines · Bongani Hlope
Quoted 3 lines · Carl D. Blake

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.

Quoted 6 lines
Signature · 5 lines
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
Signature · 11 lines
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: [email protected]

.com
#3 lore raw
Quoted 29 lines · Carl D. Blake
Quoted 9 lines · Bongani Hlope
Quoted 3 lines · Carl D. Blake

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.

Quoted 1 line

Any other suggestions? Thanks for your help.

Disclaimer at the bottom. ;)

It was once posted on this list that the NForce is similar to some existing hardware. hence the sound driver uses the Intel i810 audio driver. I guess if you can search through the archive you might find that discussion. If you do find it and _are_ clued-up enough, then you can look at drivers/char/agp/agpgart_be.c approximately line 3900 they start defining which drivers to use for which bus.

So you need to
1. Find the id for the AGP bus for the NForce and define it in agp.h (lspci should do the trick IIRC on my PC 00:01.0 is the agp bus)
2. Find out which hardware the bus is similar to, then add the support for the NForce using the setup for that driver
e.g.

agp.h

add
#ifndef PCI_DEVICE_ID_NVIDIA_NFORCORCE_2 //I'm not sure about the
naming standard
#define PCI_DEVICE_ID_NVIDIA_NFORCORCE_2 0x(Hex value from lspci)
#endif

the in agpgart_be.c

add (for example lets say the bus is similar to Intel's i860 agp bus then)

#ifdef CONFIG_AGP_INTEL
...

{ PCI_DEVICE_ID_NVIDIA_NFORCORCE_2,

                PCI_VENDOR_ID_NVIDIA,
                INTEL_I860,
                "NVidia",
                "NForce2",
                intel_860_setup },

....
#endif /* CONFIG_AGP_INTEL */

DISCLAIMER : I do not know anything about the agp code, except for what I have read when trying to find a solution for you. The examples above are from what my eyes came across at 1:00 am without prio knowledge to the agp code. So if you implement these examples you do it at you own (and maybe your pets) risk. The examples come with.... you should now how the rest goes ;)

Signature · 5 lines
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
#4 lore raw

On Mon, 2002-12-23 at 16:19, Bongani Hlope wrote:
...snip...

Quoted 8 lines

It was once posted on this list that the NForce is similar to some existing hardware. hence the sound driver uses the Intel i810 audio driver. I guess if you can search through the archive you might find that discussion. If you do find it and _are_ clued-up enough, then you can look at drivers/char/agp/agpgart_be.c approximately line 3900 they start defining which drivers to use for which bus.

This sounds like a possibility. However, I cannot find any discussion about what hardware the nforce2 chipset is similar to. I just need to know if the agp portion of the chipset is similar to something else. Can anybody point to that information? From what I can determine the device that is used is the host bridge.

Quoted 46 lines

So you need to
1. Find the id for the AGP bus for the NForce and define it in agp.h (lspci should do the trick IIRC on my PC 00:01.0 is the agp bus)
2. Find out which hardware the bus is similar to, then add the support for the NForce using the setup for that driver
e.g.

agp.h

add
#ifndef PCI_DEVICE_ID_NVIDIA_NFORCORCE_2 //I'm not sure about the
naming standard
#define PCI_DEVICE_ID_NVIDIA_NFORCORCE_2 0x(Hex value from lspci)
#endif

the in agpgart_be.c

add (for example lets say the bus is similar to Intel's i860 agp bus then)

#ifdef CONFIG_AGP_INTEL
...

{ PCI_DEVICE_ID_NVIDIA_NFORCORCE_2,

                PCI_VENDOR_ID_NVIDIA,
                INTEL_I860,
                "NVidia",
                "NForce2",
                intel_860_setup },

....
#endif /* CONFIG_AGP_INTEL */

DISCLAIMER : I do not know anything about the agp code, except for what I have read when trying to find a solution for you. The examples above are from what my eyes came across at 1:00 am without prio knowledge to the agp code. So if you implement these examples you do it at you own (and maybe your pets) risk. The examples come with.... you should now how the rest goes ;)

Signature · 5 lines
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
Signature · 11 lines
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: [email protected]

.com
#5 lore raw
In reply to Carl D. Blake

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

----- Original Message -----
From: "Carl D. Blake" <[email protected]>
To: <[email protected]>
Sent: Monday, December 23, 2002 2:40 PM
Subject: Re: nforce2 and agpgart

Quoted 55 lines · Bongani Hlope
Quoted 9 lines · Carl D. Blake
Quoted 3 lines

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.

Quoted 6 lines

--
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: [email protected]

.com

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

#6 lore raw
Quoted 7 lines · Jeff Nguyen

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.

Quoted 68 lines

----- Original Message -----
From: "Carl D. Blake" <[email protected]>
To: <[email protected]>
Sent: Monday, December 23, 2002 2:40 PM
Subject: Re: nforce2 and agpgart

Quoted 47 lines · Bongani Hlope
Quoted 9 lines · Carl D. Blake
Quoted 3 lines

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.

Quoted 6 lines

--
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: [email protected]

Quoted 8 lines

.com

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Signature · 11 lines
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: [email protected]

.com

A message that is not in the archive (sent off-list or not yet received): 1040928705.6372.27.camel@vulcan

A message that is not in the archive (sent off-list or not yet received): 086101c2ad18$46fea8b0$6502a8c0@jeff

#9 lore raw
Quoted 3 lines · Jeff Nguyen

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.

Quoted 110 lines

Jeff

----- Original Message -----
From: "Carl D. Blake" <[email protected]>
To: "Jeff Nguyen" <[email protected]>
Sent: Thursday, December 26, 2002 10:51 AM
Subject: Re: nforce2 and agpgart

Quoted 22 lines · Jeff Nguyen
Quoted 7 lines

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.

Quoted 11 lines

----- Original Message -----
From: "Carl D. Blake" <[email protected]>
To: <[email protected]>
Sent: Monday, December 23, 2002 2:40 PM
Subject: Re: nforce2 and agpgart

Quoted 4 lines · Bongani Hlope
Quoted 3 lines · Carl D. Blake
Quoted 2 lines

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

Quoted 3 lines
Quoted 3 lines
Quoted 3 lines
Quoted 3 lines
Quoted 1 line

system with Redhat's 2.4.9-21 kernel.

Try to use a newer kernel from Redhat, because that kernel was

around

Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line

looong before nforce was released. IIRC support for nforce2 was

added

Quoted 6 lines
Quoted 6 lines
Quoted 6 lines
Quoted 2 lines

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:

Quoted 7 lines
Quoted 7 lines
Quoted 7 lines

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

Quoted 1 line
Quoted 1 line
Quoted 1 line

2.4.18. There are a few differences - such as supporting AMD 8151 -

but

Quoted 2 lines
Quoted 2 lines
Quoted 2 lines

nothing that indicates improved support for agpgart on the nforce2 chipset. The changelog for 2.4.20 indicated some added support for

the

Quoted 1 line
Quoted 1 line
Quoted 1 line

nforce2 chipset, but that seems to be support for the audio and

network

Quoted 18 lines
Quoted 18 lines
Quoted 18 lines

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.

Quoted 6 lines

--
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

Quoted 8 lines
Quoted 8 lines
Quoted 8 lines

Phone: 520-745-0001
FAX: 520-745-0004
email: [email protected]

.com

-
To unsubscribe from this list: send the line "unsubscribe

linux-kernel" in

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Quoted 4 lines

the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

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in

Quoted 16 lines
Quoted 3 lines

the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

--
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: [email protected]

.com

Signature · 11 lines
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: [email protected]

.com