blob: 059a61b7071b2ab4d8e5ada5e9d1aa732b435206 [file] [log] [blame]
Chen Liqin6bc9a392009-06-12 22:01:00 +08001#ifndef _ASM_SCORE_PGALLOC_H
2#define _ASM_SCORE_PGALLOC_H
3
4#include <linux/mm.h>
5
6static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
7 pte_t *pte)
8{
9 set_pmd(pmd, __pmd((unsigned long)pte));
10}
11
12static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
13 pgtable_t pte)
14{
15 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
16}
17
18#define pmd_pgtable(pmd) pmd_page(pmd)
19
20static inline pgd_t *pgd_alloc(struct mm_struct *mm)
21{
22 pgd_t *ret, *init;
23
24 ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
25 if (ret) {
26 init = pgd_offset(&init_mm, 0UL);
27 pgd_init((unsigned long)ret);
28 memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
29 (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
30 }
31
32 return ret;
33}
34
35static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
36{
37 free_pages((unsigned long)pgd, PGD_ORDER);
38}
39
40static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
41 unsigned long address)
42{
43 pte_t *pte;
44
45 pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO,
46 PTE_ORDER);
47
48 return pte;
49}
50
51static inline struct page *pte_alloc_one(struct mm_struct *mm,
52 unsigned long address)
53{
54 struct page *pte;
55
56 pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
57 if (pte) {
58 clear_highpage(pte);
59 pgtable_page_ctor(pte);
60 }
61 return pte;
62}
63
64static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
65{
66 free_pages((unsigned long)pte, PTE_ORDER);
67}
68
69static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
70{
71 pgtable_page_dtor(pte);
72 __free_pages(pte, PTE_ORDER);
73}
74
Chen Liqinffa818b2009-08-30 12:30:16 +080075#define __pte_free_tlb(tlb, pte, buf) \
Chen Liqin6bc9a392009-06-12 22:01:00 +080076do { \
77 pgtable_page_dtor(pte); \
78 tlb_remove_page((tlb), pte); \
79} while (0)
80
81#define check_pgt_cache() do {} while (0)
82
83#endif /* _ASM_SCORE_PGALLOC_H */