aperturebase      154 drivers/char/agp/amd64-agp.c 	u64 aperturebase;
aperturebase      160 drivers/char/agp/amd64-agp.c 	aperturebase = (u64)tmp << 25;
aperturebase      161 drivers/char/agp/amd64-agp.c 	aper_base = (aperturebase & PCI_BASE_ADDRESS_MEM_MASK);