/dev/agpgart in kernel compile and Nvidia drivers

dividingbyzero · 01-28-2009, 12:58 AM

Hi. I'm compiling a kernel (2.6.28) for my desktop machine and am wondering about the /dev/agpgart in the kernel compile options. My box uses an Nvidia 9600gt video card and I don't see any options for this card under the /dev/agpgart menu in 'menuconfig' (there is Nvidia Nforce)and most of the stuff on my board (PCI,USB,etc) is by ATI. I guess that my question is - Does the driver that I download from NVIDIA for this card include the AGP chip support, or do I have to include this at compile time?

Thank you

bathory · 01-30-2009, 03:48 AM

The nvidia driver has built-in support for agp, but I don't think you need it unless your card uses agp bus (afaik 9xxx cards use pci-e bus). Anyway take a look at the NvAGP option bellow (quoted from nvidia's README):

Quote:

Option "NvAGP" "integer"

Configure AGP support. Integer argument can be one of:
Value Behavior
0 disable AGP
1 use NVIDIA's internal AGP support, if possible
2 use AGPGART, if possible
3 use any AGP support (try AGPGART, then NVIDIA's AGP)

Please note that NVIDIA's internal AGP support cannot work if AGPGART is either statically compiled into your kernel or is built as a module and loaded into your kernel. Please see Appendix F, Configuring AGP for details. Default: 3.

Note also that the agp support in 2.6.x kernels is under: -->Device Drivers-->Graphics Support-->/dev/agpgart (AGP Support)
if you still want to build the various agp modules.

Regards