1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) 4 * Copyright 2003 PathScale, Inc. 5 * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h 6 */ 7 8 #ifndef __UM_PGALLOC_H 9 #define __UM_PGALLOC_H 10 11 #include <linux/mm.h> 12 13 #include <asm-generic/pgalloc.h> 14 15 #define pmd_populate_kernel(mm, pmd, pte) \ 16 set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) 17 18 #define pmd_populate(mm, pmd, pte) \ 19 set_pmd(pmd, __pmd(_PAGE_TABLE + \ 20 ((unsigned long long)page_to_pfn(pte) << \ 21 (unsigned long long) PAGE_SHIFT))) 22 #define pmd_pgtable(pmd) pmd_page(pmd) 23 24 /* 25 * Allocate and free page tables. 26 */ 27 extern pgd_t *pgd_alloc(struct mm_struct *); 28 29 #define __pte_free_tlb(tlb,pte, address) \ 30 do { \ 31 pgtable_pte_page_dtor(pte); \ 32 tlb_remove_page((tlb),(pte)); \ 33 } while (0) 34 35 #ifdef CONFIG_3_LEVEL_PGTABLES 36 37 #define __pmd_free_tlb(tlb, pmd, address) \ 38 do { \ 39 pgtable_pmd_page_dtor(virt_to_page(pmd)); \ 40 tlb_remove_page((tlb),virt_to_page(pmd)); \ 41 } while (0) \ 42 43 #endif 44 45 #endif 46 47