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[mirror_ubuntu-artful-kernel.git] / arch / sparc / include / asm / pgalloc_32.h
1 #ifndef _SPARC_PGALLOC_H
2 #define _SPARC_PGALLOC_H
3
4 #include <linux/kernel.h>
5 #include <linux/sched.h>
6
7 #include <asm/pgtsrmmu.h>
8 #include <asm/pgtable.h>
9 #include <asm/vaddrs.h>
10 #include <asm/page.h>
11
12 struct page;
13
14 void *srmmu_get_nocache(int size, int align);
15 void srmmu_free_nocache(void *addr, int size);
16
17 #define check_pgt_cache() do { } while (0)
18
19 pgd_t *get_pgd_fast(void);
20 static inline void free_pgd_fast(pgd_t *pgd)
21 {
22 srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
23 }
24
25 #define pgd_free(mm, pgd) free_pgd_fast(pgd)
26 #define pgd_alloc(mm) get_pgd_fast()
27
28 static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
29 {
30 unsigned long pa = __nocache_pa((unsigned long)pmdp);
31
32 set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
33 }
34
35 #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
36
37 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
38 unsigned long address)
39 {
40 return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
41 SRMMU_PMD_TABLE_SIZE);
42 }
43
44 static inline void free_pmd_fast(pmd_t * pmd)
45 {
46 srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
47 }
48
49 #define pmd_free(mm, pmd) free_pmd_fast(pmd)
50 #define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
51
52 void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
53 #define pmd_pgtable(pmd) pmd_page(pmd)
54
55 void pmd_set(pmd_t *pmdp, pte_t *ptep);
56 #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
57
58 pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
59
60 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
61 unsigned long address)
62 {
63 return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
64 }
65
66
67 static inline void free_pte_fast(pte_t *pte)
68 {
69 srmmu_free_nocache(pte, PTE_SIZE);
70 }
71
72 #define pte_free_kernel(mm, pte) free_pte_fast(pte)
73
74 void pte_free(struct mm_struct * mm, pgtable_t pte);
75 #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte)
76
77 #endif /* _SPARC_PGALLOC_H */