FIX: Nice oops from agpgart - 2.2 kernels and Alpha

I complained few days ago that 'agpgart.o' module from 2.2.18pre is causing a kernel oops. The problem turned out to be an apparent assumption that PCI memory <-> memory mapping is an identity and this is not always the case. Here is a patch applicable to all 2.2.18pre kernels with agpgart

FIX: Nice oops from agpgart - 2.2 kernels and Alpha

I complained few days ago that 'agpgart.o' module from 2.2.18pre is causing a kernel oops. The problem turned out to be an apparent assumption that PCI memory - memory mapping is an identity and this is not always the case. Here is a patch applicable to all 2.2.18pre kernels with agpgart