LXR linux/arch/powerpc/include/asm/nohash/64/pgalloc.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2#ifndef _ASM_POWERPC_PGALLOC_64_H
   3#define _ASM_POWERPC_PGALLOC_64_H
   4/*
   5 */
   6
   7#include <linux/slab.h>
   8#include <linux/cpumask.h>
   9#include <linux/percpu.h>
  10
  11struct vmemmap_backing {
  12        struct vmemmap_backing *list;
  13        unsigned long phys;
  14        unsigned long virt_addr;
  15};
  16extern struct vmemmap_backing *vmemmap_list;
  17
  18#define p4d_populate(MM, P4D, PUD)      p4d_set(P4D, (unsigned long)PUD)
  19
  20static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
  21{
  22        return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
  23                        pgtable_gfp_flags(mm, GFP_KERNEL));
  24}
  25
  26static inline void pud_free(struct mm_struct *mm, pud_t *pud)
  27{
  28        kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
  29}
  30
  31static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
  32{
  33        pud_set(pud, (unsigned long)pmd);
  34}
  35
  36static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
  37                                       pte_t *pte)
  38{
  39        pmd_set(pmd, (unsigned long)pte);
  40}
  41
  42static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
  43                                pgtable_t pte_page)
  44{
  45        pmd_set(pmd, (unsigned long)pte_page);
  46}
  47
  48static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
  49{
  50        return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
  51                        pgtable_gfp_flags(mm, GFP_KERNEL));
  52}
  53
  54static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
  55{
  56        kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
  57}
  58
  59#define __pmd_free_tlb(tlb, pmd, addr)                \
  60        pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX)
  61#define __pud_free_tlb(tlb, pud, addr)                \
  62        pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE)
  63
  64#endif /* _ASM_POWERPC_PGALLOC_64_H */
  65