1 #ifndef __ASM_SH_PGALLOC_H
2 #define __ASM_SH_PGALLOC_H
4 #include <linux/quicklist.h>
7 #define QUICK_PT 1 /* Other page table pages that are zero on free */
9 #ifdef CONFIG_PGTABLE_LEVELS_3
10 #include <asm/pgalloc_pmd.h>
12 #include <asm/pgalloc_nopmd.h>
15 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
18 set_pmd(pmd, __pmd((unsigned long)pte));
21 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
24 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
26 #define pmd_pgtable(pmd) pmd_page(pmd)
29 * Allocate and free page tables.
31 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
32 unsigned long address)
34 return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
37 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
38 unsigned long address)
43 pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
46 page = virt_to_page(pg);
47 pgtable_page_ctor(page);
51 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
53 quicklist_free(QUICK_PT, NULL, pte);
56 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
58 pgtable_page_dtor(pte);
59 quicklist_free_page(QUICK_PT, NULL, pte);
62 #define __pte_free_tlb(tlb,pte,addr) \
64 pgtable_page_dtor(pte); \
65 tlb_remove_page((tlb), (pte)); \
68 static inline void check_pgt_cache(void)
71 quicklist_trim(QUICK_PT, NULL, 25, 16);
74 #endif /* __ASM_SH_PGALLOC_H */