LXR linux/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
   8extern pgd_t *pgd_alloc(struct mm_struct *);
   9extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
  10
  11#if PAGETABLE_LEVELS > 2
  12extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
  13extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
  14extern void pmd_free(struct mm_struct *mm, pmd_t *pmd);
  15#endif
  16
  17static 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
  23static 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)                    \
  31do {                                                    \
  32        pgtable_pte_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)                 \
  38do {                                                    \
  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 */
  46