arch/sh/include/asm/pgalloc.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_PGALLOC_H
   3 #define __ASM_SH_PGALLOC_H
   4
   5 #include <asm/page.h>
   6 #include <asm-generic/pgalloc.h>
   7
   8 extern pgd_t *pgd_alloc(struct mm_struct *);
   9 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
  10
  11 #if PAGETABLE_LEVELS > 2
  12 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
  13 extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
  14 extern void pmd_free(struct mm_struct *mm, pmd_t *pmd);
  15 #endif
  16
  17 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
  18                                        pte_t *pte)
  19 {
  20         set_pmd(pmd, __pmd((unsigned long)pte));
  21 }
  22
  23 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
  24                                 pgtable_t pte)
  25 {
  26         set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
  27 }
  28 #define pmd_pgtable(pmd) pmd_page(pmd)
  29
  30 #define __pte_free_tlb(tlb,pte,addr)                    \
  31 do {                                                    \
  32         pgtable_page_dtor(pte);                         \
  33         tlb_remove_page((tlb), (pte));                  \
  34 } while (0)
  35
  36 #if CONFIG_PGTABLE_LEVELS > 2
  37 #define __pmd_free_tlb(tlb, pmdp, addr)                 \
  38 do {                                                    \
  39         struct page *page = virt_to_page(pmdp);         \
  40         pgtable_pmd_page_dtor(page);                    \
  41         tlb_remove_page((tlb), page);                   \
  42 } while (0);
  43 #endif
  44
  45 #endif /* __ASM_SH_PGALLOC_H */