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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
f5e706ad SR |
2 | #ifndef _SPARC_PGALLOC_H |
3 | #define _SPARC_PGALLOC_H | |
4 | ||
5 | #include <linux/kernel.h> | |
6 | #include <linux/sched.h> | |
7 | ||
642ea3ed | 8 | #include <asm/pgtsrmmu.h> |
642ea3ed SR |
9 | #include <asm/pgtable.h> |
10 | #include <asm/vaddrs.h> | |
11 | #include <asm/page.h> | |
f5e706ad SR |
12 | |
13 | struct page; | |
14 | ||
f71a2aac SR |
15 | void *srmmu_get_nocache(int size, int align); |
16 | void srmmu_free_nocache(void *addr, int size); | |
642ea3ed | 17 | |
c31f7651 SR |
18 | extern struct resource sparc_iomap; |
19 | ||
37743487 | 20 | #define check_pgt_cache() do { } while (0) |
f5e706ad | 21 | |
642ea3ed SR |
22 | pgd_t *get_pgd_fast(void); |
23 | static inline void free_pgd_fast(pgd_t *pgd) | |
24 | { | |
f71a2aac | 25 | srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE); |
642ea3ed | 26 | } |
f5e706ad SR |
27 | |
28 | #define pgd_free(mm, pgd) free_pgd_fast(pgd) | |
29 | #define pgd_alloc(mm) get_pgd_fast() | |
30 | ||
642ea3ed SR |
31 | static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp) |
32 | { | |
6b1cabe8 | 33 | unsigned long pa = __nocache_pa(pmdp); |
642ea3ed | 34 | |
6e6e4187 | 35 | set_pte((pte_t *)pgdp, __pte((SRMMU_ET_PTD | (pa >> 4)))); |
642ea3ed SR |
36 | } |
37 | ||
f5e706ad SR |
38 | #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) |
39 | ||
642ea3ed SR |
40 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, |
41 | unsigned long address) | |
42 | { | |
f71a2aac SR |
43 | return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, |
44 | SRMMU_PMD_TABLE_SIZE); | |
642ea3ed | 45 | } |
f5e706ad | 46 | |
642ea3ed SR |
47 | static inline void free_pmd_fast(pmd_t * pmd) |
48 | { | |
f71a2aac | 49 | srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE); |
642ea3ed | 50 | } |
f5e706ad | 51 | |
9e1b32ca BH |
52 | #define pmd_free(mm, pmd) free_pmd_fast(pmd) |
53 | #define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd) | |
f5e706ad | 54 | |
642ea3ed | 55 | void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep); |
f5e706ad | 56 | #define pmd_pgtable(pmd) pmd_page(pmd) |
f5e706ad | 57 | |
642ea3ed SR |
58 | void pmd_set(pmd_t *pmdp, pte_t *ptep); |
59 | #define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) | |
60 | ||
61 | pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address); | |
62 | ||
63 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, | |
64 | unsigned long address) | |
65 | { | |
f71a2aac | 66 | return srmmu_get_nocache(PTE_SIZE, PTE_SIZE); |
642ea3ed SR |
67 | } |
68 | ||
69 | ||
70 | static inline void free_pte_fast(pte_t *pte) | |
71 | { | |
f71a2aac | 72 | srmmu_free_nocache(pte, PTE_SIZE); |
642ea3ed | 73 | } |
f5e706ad | 74 | |
642ea3ed | 75 | #define pte_free_kernel(mm, pte) free_pte_fast(pte) |
f5e706ad | 76 | |
642ea3ed | 77 | void pte_free(struct mm_struct * mm, pgtable_t pte); |
9e1b32ca | 78 | #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte) |
f5e706ad SR |
79 | |
80 | #endif /* _SPARC_PGALLOC_H */ |