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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 */ |
| 68 |
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