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/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) * Copyright 2003 PathScale, Inc. * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h */ #ifndef __UM_PGALLOC_H #define __UM_PGALLOC_H #include <linux/mm.h> #include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */ #define pmd_populate_kernel(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) #define pmd_populate(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ (unsigned long long) PAGE_SHIFT))) #define pmd_pgtable(pmd) pmd_page(pmd) /* * Allocate and free page tables. */ extern pgd_t *pgd_alloc(struct mm_struct *); extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); #define __pte_free_tlb(tlb,pte, address) \ do { \ pgtable_pte_page_dtor(pte); \ tlb_remove_page((tlb),(pte)); \ } while (0) #ifdef CONFIG_3_LEVEL_PGTABLES static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { free_page((unsigned long)pmd); } #define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x)) #endif #endif