162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#ifndef _ASM_NIOS2_TLBFLUSH_H 762306a36Sopenharmony_ci#define _ASM_NIOS2_TLBFLUSH_H 862306a36Sopenharmony_ci 962306a36Sopenharmony_cistruct mm_struct; 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci/* 1262306a36Sopenharmony_ci * TLB flushing: 1362306a36Sopenharmony_ci * 1462306a36Sopenharmony_ci * - flush_tlb_all() flushes all processes TLB entries 1562306a36Sopenharmony_ci * - flush_tlb_mm(mm) flushes the specified mm context TLB entries 1662306a36Sopenharmony_ci * - flush_tlb_range(vma, start, end) flushes a range of pages 1762306a36Sopenharmony_ci * - flush_tlb_page(vma, address) flushes a page 1862306a36Sopenharmony_ci * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages 1962306a36Sopenharmony_ci * - flush_tlb_kernel_page(address) flushes a kernel page 2062306a36Sopenharmony_ci * 2162306a36Sopenharmony_ci * - reload_tlb_page(vma, address, pte) flushes the TLB for address like 2262306a36Sopenharmony_ci * flush_tlb_page, then replaces it with a TLB for pte. 2362306a36Sopenharmony_ci */ 2462306a36Sopenharmony_ciextern void flush_tlb_all(void); 2562306a36Sopenharmony_ciextern void flush_tlb_mm(struct mm_struct *mm); 2662306a36Sopenharmony_ciextern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 2762306a36Sopenharmony_ci unsigned long end); 2862306a36Sopenharmony_ciextern void flush_tlb_kernel_range(unsigned long start, unsigned long end); 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_cistatic inline void flush_tlb_page(struct vm_area_struct *vma, 3162306a36Sopenharmony_ci unsigned long address) 3262306a36Sopenharmony_ci{ 3362306a36Sopenharmony_ci flush_tlb_range(vma, address, address + PAGE_SIZE); 3462306a36Sopenharmony_ci} 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_cistatic inline void flush_tlb_kernel_page(unsigned long address) 3762306a36Sopenharmony_ci{ 3862306a36Sopenharmony_ci flush_tlb_kernel_range(address, address + PAGE_SIZE); 3962306a36Sopenharmony_ci} 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ciextern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr, 4262306a36Sopenharmony_ci pte_t pte); 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci#endif /* _ASM_NIOS2_TLBFLUSH_H */ 45