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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_PGALLOC_H
#define _ASM_IA64_PGALLOC_H
/*
* This file contains the functions and defines necessary to allocate
* page tables.
*
* This hopefully works with any (fixed) ia-64 page-size, as defined
* in <asm/page.h> (currently 8192).
*
* Copyright (C) 1998-2001 Hewlett-Packard Co
* David Mosberger-Tang <[email protected]>
* Copyright (C) 2000, Goutham Rao <[email protected]>
*/
#include <linux/compiler.h>
#include <linux/mm.h>
#include <linux/page-flags.h>
#include <linux/threads.h>
#include <asm-generic/pgalloc.h>
#include <asm/mmu_context.h>
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
}
#if CONFIG_PGTABLE_LEVELS == 4
static inline void
p4d_populate(struct mm_struct *mm, p4d_t * p4d_entry, pud_t * pud)
{
p4d_val(*p4d_entry) = __pa(pud);
}
#define __pud_free_tlb(tlb, pud, address) pud_free((tlb)->mm, pud)
#endif /* CONFIG_PGTABLE_LEVELS == 4 */
static inline void
pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
{
pud_val(*pud_entry) = __pa(pmd);
}
#define __pmd_free_tlb(tlb, pmd, address) pmd_free((tlb)->mm, pmd)
static inline void
pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte)
{
pmd_val(*pmd_entry) = page_to_phys(pte);
}
static inline void
pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
{
pmd_val(*pmd_entry) = __pa(pte);
}
#define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte)
#endif /* _ASM_IA64_PGALLOC_H */