mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
#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 })
|
|
|
|
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);
|
|
extern int is_in_rom(unsigned long);
|
|
|
|
/*
|
|
* 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)
|
|
|
|
#define MK_IOSPACE_PFN(space, pfn) (pfn)
|
|
#define GET_IOSPACE(pfn) 0
|
|
#define GET_PFN(pfn) (pfn)
|
|
|
|
/*
|
|
* All 32bit addresses are effectively valid for vmalloc...
|
|
* Sort of meaningless for non-VM targets.
|
|
*/
|
|
#define VMALLOC_START 0
|
|
#define VMALLOC_END 0xffffffff
|
|
|
|
#endif /* _M68KNOMMU_PGTABLE_H */
|