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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 static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
19 {
20         p4d_set(p4d, (unsigned long)pud);
21 }
22
23 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
24 {
25         return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
26                         pgtable_gfp_flags(mm, GFP_KERNEL));
27 }
28
29 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
30 {
31         kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
32 }
33
34 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
35 {
36         pud_set(pud, (unsigned long)pmd);
37 }
38
39 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
40                                        pte_t *pte)
41 {
42         pmd_set(pmd, (unsigned long)pte);
43 }
44
45 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
46                                 pgtable_t pte_page)
47 {
48         pmd_set(pmd, (unsigned long)pte_page);
49 }
50
51 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
52 {
53         return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
54                         pgtable_gfp_flags(mm, GFP_KERNEL));
55 }
56
57 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
58 {
59         kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
60 }
61
62 #define __pmd_free_tlb(tlb, pmd, addr)                \
63         pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX)
64 #define __pud_free_tlb(tlb, pud, addr)                \
65         pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE)
66
67 #endif /* _ASM_POWERPC_PGALLOC_64_H */
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