| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 16 | * - flush_tlb_range(vma, start, end) flushes a range of pages |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 17 | * - flush_tlb_page(vma, address) flushes a page |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 18 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 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. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 29 | |
| 30 | static inline void flush_tlb_page(struct vm_area_struct *vma, |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 31 | unsigned long address) |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 32 | { |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 33 | flush_tlb_range(vma, address, address + PAGE_SIZE); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 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 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 44 | #endif /* _ASM_NIOS2_TLBFLUSH_H */ |