1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_PGALLOC_H
3 #define _ASM_IA64_PGALLOC_H
6 * This file contains the functions and defines necessary to allocate
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>
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 #if CONFIG_PGTABLE_LEVELS == 4
34 p4d_populate(struct mm_struct *mm, p4d_t * p4d_entry, pud_t * pud)
36 p4d_val(*p4d_entry) = __pa(pud);
39 #define __pud_free_tlb(tlb, pud, address) pud_free((tlb)->mm, pud)
40 #endif /* CONFIG_PGTABLE_LEVELS == 4 */
43 pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
45 pud_val(*pud_entry) = __pa(pmd);
48 #define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd)
51 pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte)
53 pmd_val(*pmd_entry) = page_to_phys(pte);
57 pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
59 pmd_val(*pmd_entry) = __pa(pte);
62 #define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte)
64 #endif /* _ASM_IA64_PGALLOC_H */