spi: efm32: Convert to use GPIO descriptors
[linux/fpc-iii.git] / arch / ia64 / include / asm / pgalloc.h
blobf4c491044882886b5687af1d91f75ba548eaa61c
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_PGALLOC_H
3 #define _ASM_IA64_PGALLOC_H
5 /*
6 * This file contains the functions and defines necessary to allocate
7 * page tables.
9 * This hopefully works with any (fixed) ia-64 page-size, as defined
10 * in <asm/page.h> (currently 8192).
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>
18 #include <linux/compiler.h>
19 #include <linux/mm.h>
20 #include <linux/page-flags.h>
21 #include <linux/threads.h>
23 #include <asm-generic/pgalloc.h>
25 #include <asm/mmu_context.h>
27 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
29 return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
32 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
34 free_page((unsigned long)pgd);
37 #if CONFIG_PGTABLE_LEVELS == 4
38 static inline void
39 pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
41 pgd_val(*pgd_entry) = __pa(pud);
44 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
46 return (pud_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
49 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
51 free_page((unsigned long)pud);
53 #define __pud_free_tlb(tlb, pud, address) pud_free((tlb)->mm, pud)
54 #endif /* CONFIG_PGTABLE_LEVELS == 4 */
56 static inline void
57 pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
59 pud_val(*pud_entry) = __pa(pmd);
62 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
64 return (pmd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
67 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
69 free_page((unsigned long)pmd);
72 #define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd)
74 static inline void
75 pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte)
77 pmd_val(*pmd_entry) = page_to_phys(pte);
79 #define pmd_pgtable(pmd) pmd_page(pmd)
81 static inline void
82 pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
84 pmd_val(*pmd_entry) = __pa(pte);
87 #define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte)
89 #endif /* _ASM_IA64_PGALLOC_H */