1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> 4 */ 5 6 #ifndef _ASM_NIOS2_TLBFLUSH_H 7 #define _ASM_NIOS2_TLBFLUSH_H 8 9 struct mm_struct; 10 11 /* 12 * TLB flushing: 13 * 14 * - flush_tlb_all() flushes all processes TLB entries 15 * - flush_tlb_mm(mm) flushes the specified mm context TLB entries 16 * - flush_tlb_range(vma, start, end) flushes a range of pages 17 * - flush_tlb_page(vma, address) flushes a page 18 * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages 19 * - flush_tlb_kernel_page(address) flushes a kernel page 20 * 21 * - reload_tlb_page(vma, address, pte) flushes the TLB for address like 22 * flush_tlb_page, then replaces it with a TLB for pte. 23 */ 24 extern void flush_tlb_all(void); 25 extern void flush_tlb_mm(struct mm_struct *mm); 26 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 27 unsigned long end); 28 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); 29 30 static inline void flush_tlb_page(struct vm_area_struct *vma, 31 unsigned long address) 32 { 33 flush_tlb_range(vma, address, address + PAGE_SIZE); 34 } 35 36 static inline void flush_tlb_kernel_page(unsigned long address) 37 { 38 flush_tlb_kernel_range(address, address + PAGE_SIZE); 39 } 40 41 extern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr, 42 pte_t pte); 43 44 #endif /* _ASM_NIOS2_TLBFLUSH_H */ 45