2 * Based on arch/arm/include/asm/tlb.h
4 * Copyright (C) 2002 Russell King
5 * Copyright (C) 2012 ARM Ltd.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <linux/pagemap.h>
23 #include <linux/swap.h>
25 #ifdef CONFIG_HAVE_RCU_TABLE_FREE
27 #define tlb_remove_entry(tlb, entry) tlb_remove_table(tlb, entry)
28 static inline void __tlb_remove_table(void *_table)
30 free_page_and_swap_cache((struct page *)_table);
33 #define tlb_remove_entry(tlb, entry) tlb_remove_page(tlb, entry)
34 #endif /* CONFIG_HAVE_RCU_TABLE_FREE */
36 static void tlb_flush(struct mmu_gather *tlb);
38 #include <asm-generic/tlb.h>
40 static inline void tlb_flush(struct mmu_gather *tlb)
42 struct vm_area_struct vma = TLB_FLUSH_VMA(tlb->mm, 0);
45 * The ASID allocator will either invalidate the ASID or mark
52 * The intermediate page table levels are already handled by
53 * the __(pte|pmd|pud)_free_tlb() functions, so last level
54 * TLBI is sufficient here.
56 __flush_tlb_range(&vma, tlb->start, tlb->end, true);
59 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
62 __flush_tlb_pgtable(tlb->mm, addr);
63 pgtable_page_dtor(pte);
64 tlb_remove_entry(tlb, pte);
67 #if CONFIG_PGTABLE_LEVELS > 2
68 static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
71 __flush_tlb_pgtable(tlb->mm, addr);
72 tlb_remove_entry(tlb, virt_to_page(pmdp));
76 #if CONFIG_PGTABLE_LEVELS > 3
77 static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pudp,
80 __flush_tlb_pgtable(tlb->mm, addr);
81 tlb_remove_entry(tlb, virt_to_page(pudp));