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/pgalloc.h> 21 #include <asm/current.h> 22 #include <linux/sched.h> 23 24 /* 25 * - flush_tlb() flushes the current mm struct TLBs 26 * - flush_tlb_all() flushes all processes TLBs 27 * - flush_tlb_mm(mm) flushes the specified mm context TLB's 28 * - flush_tlb_page(vma, vmaddr) flushes one page 29 * - flush_tlb_range(mm, start, end) flushes a range of pages 30 */ 31 extern void local_flush_tlb_all(void); 32 extern void local_flush_tlb_mm(struct mm_struct *mm); 33 extern void local_flush_tlb_page(struct vm_area_struct *vma, 34 unsigned long addr); 35 extern void local_flush_tlb_range(struct vm_area_struct *vma, 36 unsigned long start, 37 unsigned long end); 38 39 #ifndef CONFIG_SMP 40 #define flush_tlb_all local_flush_tlb_all 41 #define flush_tlb_mm local_flush_tlb_mm 42 #define flush_tlb_page local_flush_tlb_page 43 #define flush_tlb_range local_flush_tlb_range 44 #else 45 extern void flush_tlb_all(void); 46 extern void flush_tlb_mm(struct mm_struct *mm); 47 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); 48 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 49 unsigned long end); 50 #endif 51 52 static inline void flush_tlb(void) 53 { 54 flush_tlb_mm(current->mm); 55 } 56 57 static inline void flush_tlb_kernel_range(unsigned long start, 58 unsigned long end) 59 { 60 flush_tlb_range(NULL, start, end); 61 } 62 63 #endif /* __ASM_OPENRISC_TLBFLUSH_H */ 64