LXR linux/arch/powerpc/include/asm/nohash/32/pgalloc.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_POWERPC_PGALLOC_32_H
   3#define _ASM_POWERPC_PGALLOC_32_H
   4
   5#include <linux/threads.h>
   6#include <linux/slab.h>
   7
   8/*
   9 * We don't have any real pmd's, and this code never triggers because
  10 * the pgd will always be present..
  11 */
  12/* #define pmd_alloc_one(mm,address)       ({ BUG(); ((pmd_t *)2); }) */
  13#define pmd_free(mm, x)                 do { } while (0)
  14#define __pmd_free_tlb(tlb,x,a)         do { } while (0)
  15/* #define pgd_populate(mm, pmd, pte)      BUG() */
  16
  17static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp,
  18                                       pte_t *pte)
  19{
  20        if (IS_ENABLED(CONFIG_BOOKE))
  21                *pmdp = __pmd((unsigned long)pte | _PMD_PRESENT);
  22        else
  23                *pmdp = __pmd(__pa(pte) | _PMD_PRESENT);
  24}
  25
  26static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
  27                                pgtable_t pte_page)
  28{
  29        if (IS_ENABLED(CONFIG_BOOKE))
  30                *pmdp = __pmd((unsigned long)pte_page | _PMD_PRESENT);
  31        else
  32                *pmdp = __pmd(__pa(pte_page) | _PMD_USER | _PMD_PRESENT);
  33}
  34
  35#endif /* _ASM_POWERPC_PGALLOC_32_H */
  36