| 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 | * OpenRISC Linux |
| 4 | * |
| 5 | * Linux architectural port borrowing liberally from similar works of |
| 6 | * others. All original copyrights apply as per the original source |
| 7 | * declaration. |
| 8 | * |
| 9 | * OpenRISC implementation: |
| 10 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> |
| 11 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 12 | * et al. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #ifndef __ASM_OPENRISC_TLBFLUSH_H |
| 16 | #define __ASM_OPENRISC_TLBFLUSH_H |
| 17 | |
| 18 | #include <linux/mm.h> |
| 19 | #include <asm/processor.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 20 | #include <asm/current.h> |
| 21 | #include <linux/sched.h> |
| 22 | |
| 23 | /* |
| 24 | * - flush_tlb() flushes the current mm struct TLBs |
| 25 | * - flush_tlb_all() flushes all processes TLBs |
| 26 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's |
| 27 | * - flush_tlb_page(vma, vmaddr) flushes one page |
| 28 | * - flush_tlb_range(mm, start, end) flushes a range of pages |
| 29 | */ |
| 30 | extern void local_flush_tlb_all(void); |
| 31 | extern void local_flush_tlb_mm(struct mm_struct *mm); |
| 32 | extern void local_flush_tlb_page(struct vm_area_struct *vma, |
| 33 | unsigned long addr); |
| 34 | extern void local_flush_tlb_range(struct vm_area_struct *vma, |
| 35 | unsigned long start, |
| 36 | unsigned long end); |
| 37 | |
| 38 | #ifndef CONFIG_SMP |
| 39 | #define flush_tlb_all local_flush_tlb_all |
| 40 | #define flush_tlb_mm local_flush_tlb_mm |
| 41 | #define flush_tlb_page local_flush_tlb_page |
| 42 | #define flush_tlb_range local_flush_tlb_range |
| 43 | #else |
| 44 | extern void flush_tlb_all(void); |
| 45 | extern void flush_tlb_mm(struct mm_struct *mm); |
| 46 | extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); |
| 47 | extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, |
| 48 | unsigned long end); |
| 49 | #endif |
| 50 | |
| 51 | static inline void flush_tlb(void) |
| 52 | { |
| 53 | flush_tlb_mm(current->mm); |
| 54 | } |
| 55 | |
| 56 | static inline void flush_tlb_kernel_range(unsigned long start, |
| 57 | unsigned long end) |
| 58 | { |
| 59 | flush_tlb_range(NULL, start, end); |
| 60 | } |
| 61 | |
| 62 | #endif /* __ASM_OPENRISC_TLBFLUSH_H */ |