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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> | |
65fddcfc | 7 | #include <linux/pgtable.h> |
f5e706ad | 8 | |
642ea3ed | 9 | #include <asm/pgtsrmmu.h> |
642ea3ed SR |
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 | ||
642ea3ed SR |
20 | pgd_t *get_pgd_fast(void); |
21 | static inline void free_pgd_fast(pgd_t *pgd) | |
22 | { | |
f71a2aac | 23 | srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE); |
642ea3ed | 24 | } |
f5e706ad SR |
25 | |
26 | #define pgd_free(mm, pgd) free_pgd_fast(pgd) | |
27 | #define pgd_alloc(mm) get_pgd_fast() | |
28 | ||
7235db26 | 29 | static inline void pud_set(pud_t * pudp, pmd_t * pmdp) |
642ea3ed | 30 | { |
6b1cabe8 | 31 | unsigned long pa = __nocache_pa(pmdp); |
642ea3ed | 32 | |
7235db26 | 33 | set_pte((pte_t *)pudp, __pte((SRMMU_ET_PTD | (pa >> 4)))); |
642ea3ed SR |
34 | } |
35 | ||
7235db26 | 36 | #define pud_populate(MM, PGD, PMD) pud_set(PGD, PMD) |
f5e706ad | 37 | |
642ea3ed SR |
38 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, |
39 | unsigned long address) | |
40 | { | |
f71a2aac SR |
41 | return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, |
42 | SRMMU_PMD_TABLE_SIZE); | |
642ea3ed | 43 | } |
f5e706ad | 44 | |
642ea3ed SR |
45 | static inline void free_pmd_fast(pmd_t * pmd) |
46 | { | |
f71a2aac | 47 | srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE); |
642ea3ed | 48 | } |
f5e706ad | 49 | |
9e1b32ca BH |
50 | #define pmd_free(mm, pmd) free_pmd_fast(pmd) |
51 | #define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd) | |
f5e706ad | 52 | |
3f407976 WD |
53 | #define pmd_populate(mm, pmd, pte) pmd_set(pmd, pte) |
54 | #define pmd_pgtable(pmd) (pgtable_t)__pmd_page(pmd) | |
f5e706ad | 55 | |
642ea3ed | 56 | void pmd_set(pmd_t *pmdp, pte_t *ptep); |
3f407976 | 57 | #define pmd_populate_kernel pmd_populate |
642ea3ed | 58 | |
4cf58924 | 59 | pgtable_t pte_alloc_one(struct mm_struct *mm); |
642ea3ed | 60 | |
4cf58924 | 61 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) |
642ea3ed | 62 | { |
8e958839 WD |
63 | return srmmu_get_nocache(SRMMU_PTE_TABLE_SIZE, |
64 | SRMMU_PTE_TABLE_SIZE); | |
642ea3ed SR |
65 | } |
66 | ||
67 | ||
68 | static inline void free_pte_fast(pte_t *pte) | |
69 | { | |
8e958839 | 70 | srmmu_free_nocache(pte, SRMMU_PTE_TABLE_SIZE); |
642ea3ed | 71 | } |
f5e706ad | 72 | |
642ea3ed | 73 | #define pte_free_kernel(mm, pte) free_pte_fast(pte) |
f5e706ad | 74 | |
642ea3ed | 75 | void pte_free(struct mm_struct * mm, pgtable_t pte); |
9e1b32ca | 76 | #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte) |
f5e706ad SR |
77 | |
78 | #endif /* _SPARC_PGALLOC_H */ |