Intel 440LX/BX/GX, I8xx and E7x05 chipset support

modulename: intel-agp.ko

and/or

intel-gtt.ko

configname: CONFIG_AGP_INTEL

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>/dev/agpgart (AGP Support)
└─>Intel 440LX/BX/GX, I8xx and E7x05 chipset support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This option gives you AGP support for the GLX component of X
on Intel 440LX/BX/GX, 815, 820, 830, 840, 845, 850, 860, 875,
E7205 and E7505 chipsets and full support for the 810, 815, 830M,
845G, 852GM, 855GM, 865G and I915 integrated graphics chipsets.

source code: