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 23 /* 24 * Allocate and free page tables. 25 */ 26 extern pgd_t *pgd_alloc(struct mm_struct *); 27 28 #define __pte_free_tlb(tlb, pte, address) \ 29 do { \ 30 pagetable_pte_dtor(page_ptdesc(pte)); \ 31 tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte))); \ 32 } while (0) 33 34 #if CONFIG_PGTABLE_LEVELS > 2 35 36 #define __pmd_free_tlb(tlb, pmd, address) \ 37 do { \ 38 pagetable_pmd_dtor(virt_to_ptdesc(pmd)); \ 39 tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd)); \ 40 } while (0) 41 42 #if CONFIG_PGTABLE_LEVELS > 3 43 44 #define __pud_free_tlb(tlb, pud, address) \ 45 do { \ 46 pagetable_pud_dtor(virt_to_ptdesc(pud)); \ 47 tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pud)); \ 48 } while (0) 49 50 #endif 51 #endif 52 53 #endif 54 55