pgalloc.h 1.0 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * Copyright (C) 2000, 2001, 2002 Jeff Dike ([email protected])
  4. * Copyright 2003 PathScale, Inc.
  5. * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
  6. */
  7. #ifndef __UM_PGALLOC_H
  8. #define __UM_PGALLOC_H
  9. #include <linux/mm.h>
  10. #include <asm-generic/pgalloc.h>
  11. #define pmd_populate_kernel(mm, pmd, pte) \
  12. set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
  13. #define pmd_populate(mm, pmd, pte) \
  14. set_pmd(pmd, __pmd(_PAGE_TABLE + \
  15. ((unsigned long long)page_to_pfn(pte) << \
  16. (unsigned long long) PAGE_SHIFT)))
  17. /*
  18. * Allocate and free page tables.
  19. */
  20. extern pgd_t *pgd_alloc(struct mm_struct *);
  21. #define __pte_free_tlb(tlb,pte, address) \
  22. do { \
  23. pgtable_pte_page_dtor(pte); \
  24. tlb_remove_page((tlb),(pte)); \
  25. } while (0)
  26. #ifdef CONFIG_3_LEVEL_PGTABLES
  27. #define __pmd_free_tlb(tlb, pmd, address) \
  28. do { \
  29. pgtable_pmd_page_dtor(virt_to_page(pmd)); \
  30. tlb_remove_page((tlb),virt_to_page(pmd)); \
  31. } while (0) \
  32. #endif
  33. #endif