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
  11 struct vmemmap_backing {
  12         struct vmemmap_backing *list;
  13         unsigned long phys;
  14         unsigned long virt_addr;
  15 };
  16 extern struct vmemmap_backing *vmemmap_list;
  17
  18 #define p4d_populate(MM, P4D, PUD)      p4d_set(P4D, (unsigned long)PUD)
  19
  20 static 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
  26 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
  27 {
  28         kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
  29 }
  30
  31 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
  32 {
  33         pud_set(pud, (unsigned long)pmd);
  34 }
  35
  36 static 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
  42 static 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
  48 static 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
  54 static 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 */