Re: agpgart.o and intel i810-chipset

[Val Henson <val@nmt.edu>]

When you do figure out what's wrong, you might want to add your
solution to Toby Russell's i810 howto:

http://www.linuxdoc.org/HOWTO/i810-HOWTO/

-VAL

On Tue, Aug 21, 2001 at 07:59:43AM +0200, Victoria W. wrote:
> hi all,
> 
> since 2 weeks I can't get the agpgrat-module working on my
> intel-i810-chipset:
> 
> 00:00.0 Host bridge: Intel Corporation: Unknown device 7124 (rev 03)
> 00:01.0 VGA compatible controller: Intel Corporation: Unknown device 7125
> (rev 03)
> 
> I can't find the reason of the initial-error while loading agpgart.
> ("no supported devices found"). I made some tests and changes to
> the module-source but I need some background-information and don't know
> where to find them.
> 
> In the driver, there is no case-statement for 
> "PCI_DEVICE_ID_INTEL_810_E_1" like the
> one for "PCI_DEVICE_ID_INTEL_810_E_0" but the one for "810_E_0" searches
> for "PCI_DEVICE_ID_INTEL_810_E_1".
> 
>                 case PCI_DEVICE_ID_INTEL_810_E_0:
>                         i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
>                                              PCI_DEVICE_ID_INTEL_810_E_1,
>                                                    NULL);
> 
> I copied this to a new case-statement:
> 
>         case PCI_DEVICE_ID_INTEL_810_E_1:
>         .....   
>         return intel_i810_setup(i810_dev);
> 
> but on loading of the module I get a kernel-oops in
> 
>       if ((INREG32(intel_i810_private.registers, I810_DRAM_CTL)
>            & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
>         ....
> 
> 
> Do you have any hints for me?
> I have no experience in kernel-driver development but I'll try to get the
> driver working. 
> Can you tell me, where to find some other usefull information? (I have the
> intel-datasheets, but I'm not shure, if it is a chipset-problem, a bug
> or just a typo in the driver).
> Is here anybody who has an i810-chipset with a working agpgart-driver?
> Please send me an "lspci-listing" an the messages while loading the
> driver. I want to find out the difference to my chipset.
> 
> Thank you in advance
> 
> best regards
> wicki
> 
> -
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