projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | #ifndef _ASM_IA64_PGALLOC_H |
| 3 | #define _ASM_IA64_PGALLOC_H | |
| 4 | ||
| 5 | /* | |
| 6 | * This file contains the functions and defines necessary to allocate | |
| 7 | * page tables. | |
| 8 | * | |
| 9 | * This hopefully works with any (fixed) ia-64 page-size, as defined | |
| 10 | * in <asm/page.h> (currently 8192). | |
| 11 | * | |
| 12 | * Copyright (C) 1998-2001 Hewlett-Packard Co | |
| 13 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
| 14 | * Copyright (C) 2000, Goutham Rao <goutham.rao@intel.com> | |
| 15 | */ | |
| 16 | ||
| 1da177e4 LT |
17 | |
| 18 | #include <linux/compiler.h> | |
| 19 | #include <linux/mm.h> | |
| 20 | #include <linux/page-flags.h> | |
| 21 | #include <linux/threads.h> | |
| 22 | ||
| 01319921 MR |
23 | #include <asm-generic/pgalloc.h> |
| 24 | ||
| 1da177e4 LT |
25 | #include <asm/mmu_context.h> |
| 26 | ||
| fde740e4 | 27 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) |
| 1da177e4 | 28 | { |
| 13224794 | 29 | return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); |
| 1da177e4 LT |
30 | } |
| 31 | ||
| 5e541973 | 32 | static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) |
| 1da177e4 | 33 | { |
| 13224794 | 34 | free_page((unsigned long)pgd); |
| 1da177e4 LT |
35 | } |
| 36 | ||
| 4d66bcc7 | 37 | #if CONFIG_PGTABLE_LEVELS == 4 |
| 837cd0bd | 38 | static inline void |
| c03ab9e3 | 39 | p4d_populate(struct mm_struct *mm, p4d_t * p4d_entry, pud_t * pud) |
| 837cd0bd | 40 | { |
| c03ab9e3 | 41 | p4d_val(*p4d_entry) = __pa(pud); |
| 837cd0bd RH |
42 | } |
| 43 | ||
| 44 | static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) | |
| 45 | { | |
| 13224794 | 46 | return (pud_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); |
| 837cd0bd RH |
47 | } |
| 48 | ||
| 5e541973 | 49 | static inline void pud_free(struct mm_struct *mm, pud_t *pud) |
| 837cd0bd | 50 | { |
| 13224794 | 51 | free_page((unsigned long)pud); |
| 837cd0bd | 52 | } |
| 9e1b32ca | 53 | #define __pud_free_tlb(tlb, pud, address) pud_free((tlb)->mm, pud) |
| 4d66bcc7 | 54 | #endif /* CONFIG_PGTABLE_LEVELS == 4 */ |
| 837cd0bd | 55 | |
| fde740e4 RH |
56 | static inline void |
| 57 | pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) | |
| 1da177e4 | 58 | { |
| fde740e4 RH |
59 | pud_val(*pud_entry) = __pa(pmd); |
| 60 | } | |
| 1da177e4 | 61 | |
| 9e1b32ca | 62 | #define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd) |
| 1da177e4 LT |
63 | |
| 64 | static inline void | |
| 2f569afd | 65 | pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte) |
| 1da177e4 LT |
66 | { |
| 67 | pmd_val(*pmd_entry) = page_to_phys(pte); | |
| 68 | } | |
| 2f569afd | 69 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| 1da177e4 LT |
70 | |
| 71 | static inline void | |
| fde740e4 | 72 | pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte) |
| 1da177e4 LT |
73 | { |
| 74 | pmd_val(*pmd_entry) = __pa(pte); | |
| 75 | } | |
| 76 | ||
| 9e1b32ca | 77 | #define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte) |
| 1da177e4 | 78 | |
| fde740e4 | 79 | #endif /* _ASM_IA64_PGALLOC_H */ |