intel driver, modular xorg, is /dev/agpgart really needed?

[harrow]

>from pciconf -lv
>vgapci0 at pci0:2:0:       class=0x030000 card=0x514d8086 chip=0x29a28086
>rev=0x02 hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = 'G965 Integrated Graphics Controller'
>    class      = display
>    subclass   = VGA
>
>using the ports tarball from http://wiki.freebsd.org/ModularXorg I
>have installed Xorg 7.2 on a fresh system. The system has the above
>mentioned onboard video chip. I have been playing around with the
>'i810' and the 'intel'(not in ports) driver.  I keep seeing this:
>
>(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
>(WW) intel(0): /dev/agpgart is either not available, or no memory is available
>
>I do have agp compiled into my kernel. I don't have an agp bus on the
>board. I am not sure why the driver is looking for one.

I've i945. Problem appears because of PCI-Express video? as i've found fromthis  maillist. If I use 
for exmaple "kldload acpi_video", then there no AGP driver device assosiasion in "pciconf -lv", and no /dev/agpgart, no DRI. 

I use only "kldload i915" and agpgart device appears, and agp driver became assotioated with video device. I mean "device agp" or "kldload agp" have take place before i915 + drm modules loaded.