Intel i915 and Xorg

There seems to be no specific options in the configuration for i915's. If I'm not wrong, it uses the same as for the i8x's and so on? Xorg at the moment complains that it can't find the module i915 on my gentoo box but then I haven't modulised anything much. Can someone confirm the configuration that is needed for modsetting (with) and i915? -- Cheers Alex