1 #ifndef _H8300_PGTABLE_H
2 #define _H8300_PGTABLE_H
3
4 #include <asm-generic/4level-fixup.h>
5
6 #include <linux/slab.h>
7 #include <asm/processor.h>
8 #include <asm/page.h>
9 #include <asm/io.h>
10
11 #define pgd_present(pgd) (1) /* pages are always present on NO_MM */
12 #define pgd_none(pgd) (0)
13 #define pgd_bad(pgd) (0)
14 #define pgd_clear(pgdp)
15 #define kern_addr_valid(addr) (1)
16 #define pmd_offset(a, b) ((void *)0)
17 #define pmd_none(pmd) (1)
18 #define pgd_offset_k(adrdress) ((pgd_t *)0)
19 #define pte_offset_kernel(dir, address) ((pte_t *)0)
20
21 #define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */
22 #define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */
23 #define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */
24 #define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */
25 #define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */
26
27 extern void paging_init(void);
28 #define swapper_pg_dir ((pgd_t *) 0)
29
30 #define __swp_type(x) (0)
31 #define __swp_offset(x) (0)
32 #define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
33 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
34 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
35
pte_file(pte_t pte)36 static inline int pte_file(pte_t pte) { return 0; }
37
38 /*
39 * ZERO_PAGE is a global shared page that is always zero: used
40 * for zero-mapped memory areas etc..
41 */
42 #define ZERO_PAGE(vaddr) (virt_to_page(0))
43
44 /*
45 * These would be in other places but having them here reduces the diffs.
46 */
47 extern unsigned int kobjsize(const void *objp);
48 extern int is_in_rom(unsigned long);
49
50 /*
51 * No page table caches to initialise
52 */
53 #define pgtable_cache_init() do { } while (0)
54
55 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
56 remap_pfn_range(vma, vaddr, pfn, size, prot)
57
58 /*
59 * All 32bit addresses are effectively valid for vmalloc...
60 * Sort of meaningless for non-VM targets.
61 */
62 #define VMALLOC_START 0
63 #define VMALLOC_END 0xffffffff
64
65 /*
66 * All 32bit addresses are effectively valid for vmalloc...
67 * Sort of meaningless for non-VM targets.
68 */
69 #define VMALLOC_START 0
70 #define VMALLOC_END 0xffffffff
71
72 #define arch_enter_lazy_cpu_mode() do {} while (0)
73 #endif /* _H8300_PGTABLE_H */
74