root/arch/powerpc/include/asm/nohash/32/pgalloc.h

INCLUDED FROM

DEFINITIONS

1. pmd_populate_kernel
2. pmd_populate

   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 
  17 static 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 
  26 static 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 */