1 #ifndef _H8300_PGTABLE_H
2 #define _H8300_PGTABLE_H
4 #include <asm-generic/4level-fixup.h>
6 #include <linux/config.h>
7 #include <linux/slab.h>
8 #include <asm/processor.h>
12 #define pgd_present(pgd) (1) /* pages are always present on NO_MM */
13 #define pgd_none(pgd) (0)
14 #define pgd_bad(pgd) (0)
15 #define pgd_clear(pgdp)
16 #define kern_addr_valid(addr) (1)
17 #define pmd_offset(a, b) ((void *)0)
18 #define pmd_none(pmd) (1)
19 #define pgd_offset_k(adrdress) ((pgd_t *)0)
20 #define pte_offset_kernel(dir, address) ((pte_t *)0)
22 #define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */
23 #define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */
24 #define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */
25 #define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */
26 #define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */
28 extern void paging_init(void);
29 #define swapper_pg_dir ((pgd_t *) 0)
31 #define __swp_type(x) (0)
32 #define __swp_offset(x) (0)
33 #define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
34 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
35 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
37 static inline int pte_file(pte_t pte) { return 0; }
40 * ZERO_PAGE is a global shared page that is always zero: used
41 * for zero-mapped memory areas etc..
43 #define ZERO_PAGE(vaddr) (virt_to_page(0))
46 * These would be in other places but having them here reduces the diffs.
48 extern unsigned int kobjsize(const void *objp);
49 extern int is_in_rom(unsigned long);
52 * No page table caches to initialise
54 #define pgtable_cache_init() do { } while (0)
55 #define io_remap_page_range(vma, vaddr, paddr, size, prot) \
56 remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
58 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
59 remap_pfn_range(vma, vaddr, pfn, size, prot)
61 #define MK_IOSPACE_PFN(space, pfn) (pfn)
62 #define GET_IOSPACE(pfn) 0
63 #define GET_PFN(pfn) (pfn)
66 * All 32bit addresses are effectively valid for vmalloc...
67 * Sort of meaningless for non-VM targets.
69 #define VMALLOC_START 0
70 #define VMALLOC_END 0xffffffff
73 * All 32bit addresses are effectively valid for vmalloc...
74 * Sort of meaningless for non-VM targets.
76 #define VMALLOC_START 0
77 #define VMALLOC_END 0xffffffff
79 #endif /* _H8300_PGTABLE_H */