#ifndef _M68KNOMMU_PGTABLE_H #define _M68KNOMMU_PGTABLE_H #include /* * (C) Copyright 2000-2002, Greg Ungerer */ #include #include #include #include /* * Trivial page table functions. */ #define pgd_present(pgd) (1) #define pgd_none(pgd) (0) #define pgd_bad(pgd) (0) #define pgd_clear(pgdp) #define kern_addr_valid(addr) (1) #define pmd_offset(a, b) ((void *)0) #define PAGE_NONE __pgprot(0) #define PAGE_SHARED __pgprot(0) #define PAGE_COPY __pgprot(0) #define PAGE_READONLY __pgprot(0) #define PAGE_KERNEL __pgprot(0) extern void paging_init(void); #define swapper_pg_dir ((pgd_t *) 0) #define __swp_type(x) (0) #define __swp_offset(x) (0) #define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) static inline int pte_file(pte_t pte) { return 0; } /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ #define ZERO_PAGE(vaddr) (virt_to_page(0)) /* * These would be in other places but having them here reduces the diffs. */ extern unsigned int kobjsize(const void *objp); /* * No page table caches to initialise. */ #define pgtable_cache_init() do { } while (0) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ remap_pfn_range(vma, vaddr, pfn, size, prot) /* * All 32bit addresses are effectively valid for vmalloc... * Sort of meaningless for non-VM targets. */ #define VMALLOC_START 0 #define VMALLOC_END 0xffffffff #include #define check_pgt_cache() do { } while (0) #endif /* _M68KNOMMU_PGTABLE_H */