1#ifndef _CRIS_PGALLOC_H
2#define _CRIS_PGALLOC_H
3
4#include <linux/threads.h>
5#include <linux/mm.h>
6
7#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
8#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
9#define pmd_pgtable(pmd) pmd_page(pmd)
10
11
12
13
14
15static inline pgd_t *pgd_alloc (struct mm_struct *mm)
16{
17 return (pgd_t *)get_zeroed_page(GFP_KERNEL);
18}
19
20static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
21{
22 free_page((unsigned long)pgd);
23}
24
25static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
26{
27 pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
28 return pte;
29}
30
31static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
32{
33 struct page *pte;
34 pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
35 if (!pte)
36 return NULL;
37 if (!pgtable_page_ctor(pte)) {
38 __free_page(pte);
39 return NULL;
40 }
41 return pte;
42}
43
44static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
45{
46 free_page((unsigned long)pte);
47}
48
49static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
50{
51 pgtable_page_dtor(pte);
52 __free_page(pte);
53}
54
55#define __pte_free_tlb(tlb,pte,address) \
56do { \
57 pgtable_page_dtor(pte); \
58 tlb_remove_page((tlb), pte); \
59} while (0)
60
61#define check_pgt_cache() do { } while (0)
62
63#endif
64