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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
f5e706ad SR |
2 | #ifndef _SPARC64_PGALLOC_H |
3 | #define _SPARC64_PGALLOC_H | |
4 | ||
5 | #include <linux/kernel.h> | |
6 | #include <linux/sched.h> | |
7 | #include <linux/mm.h> | |
8 | #include <linux/slab.h> | |
f5e706ad SR |
9 | |
10 | #include <asm/spitfire.h> | |
11 | #include <asm/cpudata.h> | |
12 | #include <asm/cacheflush.h> | |
13 | #include <asm/page.h> | |
14 | ||
15 | /* Page table allocation/freeing. */ | |
16 | ||
4dedbf8d DM |
17 | extern struct kmem_cache *pgtable_cache; |
18 | ||
ac55c768 DM |
19 | static inline void __pgd_populate(pgd_t *pgd, pud_t *pud) |
20 | { | |
21 | pgd_set(pgd, pud); | |
22 | } | |
23 | ||
24 | #define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD) | |
25 | ||
f5e706ad SR |
26 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) |
27 | { | |
4dedbf8d | 28 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
f5e706ad SR |
29 | } |
30 | ||
31 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) | |
32 | { | |
4dedbf8d | 33 | kmem_cache_free(pgtable_cache, pgd); |
f5e706ad SR |
34 | } |
35 | ||
ac55c768 DM |
36 | static inline void __pud_populate(pud_t *pud, pmd_t *pmd) |
37 | { | |
38 | pud_set(pud, pmd); | |
39 | } | |
40 | ||
41 | #define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD) | |
42 | ||
43 | static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) | |
44 | { | |
45eeff26 | 45 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
ac55c768 DM |
46 | } |
47 | ||
48 | static inline void pud_free(struct mm_struct *mm, pud_t *pud) | |
49 | { | |
50 | kmem_cache_free(pgtable_cache, pud); | |
51 | } | |
f5e706ad SR |
52 | |
53 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) | |
54 | { | |
45eeff26 | 55 | return kmem_cache_alloc(pgtable_cache, GFP_KERNEL); |
f5e706ad SR |
56 | } |
57 | ||
58 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) | |
59 | { | |
4dedbf8d | 60 | kmem_cache_free(pgtable_cache, pmd); |
f5e706ad SR |
61 | } |
62 | ||
4cf58924 JFG |
63 | pte_t *pte_alloc_one_kernel(struct mm_struct *mm); |
64 | pgtable_t pte_alloc_one(struct mm_struct *mm); | |
f05a6865 SR |
65 | void pte_free_kernel(struct mm_struct *mm, pte_t *pte); |
66 | void pte_free(struct mm_struct *mm, pgtable_t ptepage); | |
f5e706ad | 67 | |
9e695d2e DM |
68 | #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE) |
69 | #define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE) | |
c460bec7 | 70 | #define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD)) |
f5e706ad | 71 | |
4dedbf8d | 72 | #define check_pgt_cache() do { } while (0) |
f5e706ad | 73 | |
f05a6865 | 74 | void pgtable_free(void *table, bool is_page); |
4a0100f7 DM |
75 | |
76 | #ifdef CONFIG_SMP | |
77 | ||
78 | struct mmu_gather; | |
f05a6865 | 79 | void tlb_remove_table(struct mmu_gather *, void *); |
4a0100f7 DM |
80 | |
81 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
82 | { | |
83 | unsigned long pgf = (unsigned long)table; | |
84 | if (is_page) | |
85 | pgf |= 0x1UL; | |
86 | tlb_remove_table(tlb, (void *)pgf); | |
87 | } | |
88 | ||
89 | static inline void __tlb_remove_table(void *_table) | |
90 | { | |
91 | void *table = (void *)((unsigned long)_table & ~0x1UL); | |
92 | bool is_page = false; | |
93 | ||
94 | if ((unsigned long)_table & 0x1UL) | |
95 | is_page = true; | |
96 | pgtable_free(table, is_page); | |
97 | } | |
98 | #else /* CONFIG_SMP */ | |
99 | static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page) | |
100 | { | |
101 | pgtable_free(table, is_page); | |
102 | } | |
103 | #endif /* !CONFIG_SMP */ | |
104 | ||
c460bec7 | 105 | static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte, |
4a0100f7 DM |
106 | unsigned long address) |
107 | { | |
c460bec7 | 108 | pgtable_free_tlb(tlb, pte, true); |
4a0100f7 DM |
109 | } |
110 | ||
111 | #define __pmd_free_tlb(tlb, pmd, addr) \ | |
112 | pgtable_free_tlb(tlb, pmd, false) | |
90f08e39 | 113 | |
ac55c768 DM |
114 | #define __pud_free_tlb(tlb, pud, addr) \ |
115 | pgtable_free_tlb(tlb, pud, false) | |
116 | ||
f5e706ad | 117 | #endif /* _SPARC64_PGALLOC_H */ |