PFN_BASE 72 include/asm-m32r/page.h #define ARCH_PFN_OFFSET PFN_BASE PFN_BASE 73 include/asm-m32r/page.h #define pfn_valid(pfn) (((pfn) - PFN_BASE) < max_mapnr) PFN_BASE 57 include/asm-m32r/pgtable-2level.h #define pgd_page(pgd) (mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE)) PFN_BASE 314 include/asm-m32r/pgtable.h #define pmd_page(pmd) (mem_map + ((pmd_val(pmd) >> PAGE_SHIFT) - PFN_BASE))