1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 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. 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> 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(vma, 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 */ 63