PCI_MEM_START
start = max(PCI_MEM_START, pa->pa_memex->ex_start);
start = max(PCI_MEM_START, pa->pa_memex->ex_start);
#ifndef PCI_MEM_START
start = max(PCI_MEM_START, pa->pa_memex->ex_start);
start = max(PCI_MEM_START, pa->pa_memex->ex_start);
start = max(PCI_MEM_START, ex->ex_start);
#ifndef PCI_MEM_START
#ifndef PCI_MEM_START
start = max(PCI_MEM_START, pa->pa_memex->ex_start);