1 /* 2 * OpenRISC Linux 3 * 4 * Linux architectural port borrowing liberally from similar works of 5 * others. All original copyrights apply as per the original source 6 * declaration. 7 * 8 * OpenRISC implementation: 9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> 10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> 11 * et al. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 */ 18 19 #ifndef __ASM_OPENRISC_TLBFLUSH_H 20 #define __ASM_OPENRISC_TLBFLUSH_H 21 22 #include <linux/mm.h> 23 #include <asm/processor.h> 24 #include <asm/pgtable.h> 25 #include <asm/pgalloc.h> 26 #include <asm/current.h> 27 #include <linux/sched.h> 28 29 /* 30 * - flush_tlb() flushes the current mm struct TLBs 31 * - flush_tlb_all() flushes all processes TLBs 32 * - flush_tlb_mm(mm) flushes the specified mm context TLB's 33 * - flush_tlb_page(vma, vmaddr) flushes one page 34 * - flush_tlb_range(mm, start, end) flushes a range of pages 35 */ 36 extern void local_flush_tlb_all(void); 37 extern void local_flush_tlb_mm(struct mm_struct *mm); 38 extern void local_flush_tlb_page(struct vm_area_struct *vma, 39 unsigned long addr); 40 extern void local_flush_tlb_range(struct vm_area_struct *vma, 41 unsigned long start, 42 unsigned long end); 43 44 #ifndef CONFIG_SMP 45 #define flush_tlb_all local_flush_tlb_all 46 #define flush_tlb_mm local_flush_tlb_mm 47 #define flush_tlb_page local_flush_tlb_page 48 #define flush_tlb_range local_flush_tlb_range 49 #else 50 extern void flush_tlb_all(void); 51 extern void flush_tlb_mm(struct mm_struct *mm); 52 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); 53 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 54 unsigned long end); 55 #endif 56 57 static inline void flush_tlb(void) 58 { 59 flush_tlb_mm(current->mm); 60 } 61 62 static inline void flush_tlb_kernel_range(unsigned long start, 63 unsigned long end) 64 { 65 flush_tlb_range(NULL, start, end); 66 } 67 68 #endif /* __ASM_OPENRISC_TLBFLUSH_H */ 69