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/pgtable.h> 21 #include <asm/pgalloc.h> 22 #include <asm/current.h> 23 #include <linux/sched.h> 24 25 /* 26 * - flush_tlb() flushes the current mm struct TLBs 27 * - flush_tlb_all() flushes all processes TLBs 28 * - flush_tlb_mm(mm) flushes the specified mm context TLB's 29 * - flush_tlb_page(vma, vmaddr) flushes one page 30 * - flush_tlb_range(mm, start, end) flushes a range of pages 31 */ 32 extern void local_flush_tlb_all(void); 33 extern void local_flush_tlb_mm(struct mm_struct *mm); 34 extern void local_flush_tlb_page(struct vm_area_struct *vma, 35 unsigned long addr); 36 extern void local_flush_tlb_range(struct vm_area_struct *vma, 37 unsigned long start, 38 unsigned long end); 39 40 #ifndef CONFIG_SMP 41 #define flush_tlb_all local_flush_tlb_all 42 #define flush_tlb_mm local_flush_tlb_mm 43 #define flush_tlb_page local_flush_tlb_page 44 #define flush_tlb_range local_flush_tlb_range 45 #else 46 extern void flush_tlb_all(void); 47 extern void flush_tlb_mm(struct mm_struct *mm); 48 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); 49 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 50 unsigned long end); 51 #endif 52 53 static inline void flush_tlb(void) 54 { 55 flush_tlb_mm(current->mm); 56 } 57 58 static inline void flush_tlb_kernel_range(unsigned long start, 59 unsigned long end) 60 { 61 flush_tlb_range(NULL, start, end); 62 } 63 64 #endif /* __ASM_OPENRISC_TLBFLUSH_H */ 65