| #ifndef _M68KNOMMU_PGTABLE_H | |
| #define _M68KNOMMU_PGTABLE_H | |
| #include <asm-generic/4level-fixup.h> | |
| /* | |
| * (C) Copyright 2000-2002, Greg Ungerer <gerg@snapgear.com> | |
| */ | |
| #include <linux/slab.h> | |
| #include <asm/processor.h> | |
| #include <asm/page.h> | |
| #include <asm/io.h> | |
| /* | |
| * 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 }) | |
| /* | |
| * 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)) | |
| /* | |
| * No page table caches to initialise. | |
| */ | |
| #define pgtable_cache_init() do { } while (0) | |
| /* | |
| * All 32bit addresses are effectively valid for vmalloc... | |
| * Sort of meaningless for non-VM targets. | |
| */ | |
| #define VMALLOC_START 0 | |
| #define VMALLOC_END 0xffffffff | |
| #define KMAP_START 0 | |
| #define KMAP_END 0xffffffff | |
| #include <asm-generic/pgtable.h> | |
| #define check_pgt_cache() do { } while (0) | |
| #endif /* _M68KNOMMU_PGTABLE_H */ |