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 <linux/mm.h>
   6 #include <asm/page.h>
   7
   8 #define __HAVE_ARCH_PMD_ALLOC_ONE
   9 #define __HAVE_ARCH_PMD_FREE
  10 #define __HAVE_ARCH_PGD_FREE
  11 #include <asm-generic/pgalloc.h>
  12
  13 extern pgd_t *pgd_alloc(struct mm_struct *);
  14 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
  15
  16 #if PAGETABLE_LEVELS > 2
  17 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
  18 extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
  19 extern void pmd_free(struct mm_struct *mm, pmd_t *pmd);
  20 #define __pmd_free_tlb(tlb, pmdp, addr)         pmd_free((tlb)->mm, (pmdp))
  21 #endif
  22
  23 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
  24                                        pte_t *pte)
  25 {
  26         set_pmd(pmd, __pmd((unsigned long)pte));
  27 }
  28
  29 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
  30                                 pgtable_t pte)
  31 {
  32         set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
  33 }
  34
  35 #define __pte_free_tlb(tlb, pte, addr)                          \
  36 do {                                                            \
  37         pagetable_pte_dtor(page_ptdesc(pte));                   \
  38         tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte)));      \
  39 } while (0)
  40
  41 #endif /* __ASM_SH_PGALLOC_H */