pgalloc.h 1.1 KB

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  1. #ifndef _CRIS_PGALLOC_H
  2. #define _CRIS_PGALLOC_H
  3. #include <linux/threads.h>
  4. #include <linux/mm.h>
  5. #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
  6. #define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
  7. /*
  8. * Allocate and free page tables.
  9. */
  10. static inline pgd_t *pgd_alloc (struct mm_struct *mm)
  11. {
  12. return (pgd_t *)get_zeroed_page(GFP_KERNEL);
  13. }
  14. static inline void pgd_free (pgd_t *pgd)
  15. {
  16. free_page((unsigned long)pgd);
  17. }
  18. static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
  19. {
  20. pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
  21. return pte;
  22. }
  23. static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
  24. {
  25. struct page *pte;
  26. pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
  27. return pte;
  28. }
  29. static inline void pte_free_kernel(pte_t *pte)
  30. {
  31. free_page((unsigned long)pte);
  32. }
  33. static inline void pte_free(struct page *pte)
  34. {
  35. __free_page(pte);
  36. }
  37. #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
  38. #define check_pgt_cache() do { } while (0)
  39. #endif