1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 4 * Copyright (C) 2008-2009 PetaLogix 5 * Copyright (C) 2006 Atmark Techno, Inc. 6 */ 7 8 #ifndef _ASM_MICROBLAZE_TLBFLUSH_H 9 #define _ASM_MICROBLAZE_TLBFLUSH_H 10 11 #include <linux/sched.h> 12 #include <linux/threads.h> 13 #include <asm/processor.h> /* For TASK_SIZE */ 14 #include <asm/mmu.h> 15 #include <asm/page.h> 16 17 extern void _tlbie(unsigned long address); 18 extern void _tlbia(void); 19 20 #define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); } 21 #define __tlbie(x) { _tlbie(x); } 22 23 static inline void local_flush_tlb_all(void) 24 { __tlbia(); } 25 static inline void local_flush_tlb_mm(struct mm_struct *mm) 26 { __tlbia(); } 27 static inline void local_flush_tlb_page(struct vm_area_struct *vma, 28 unsigned long vmaddr) 29 { __tlbie(vmaddr); } 30 static inline void local_flush_tlb_range(struct vm_area_struct *vma, 31 unsigned long start, unsigned long end) 32 { __tlbia(); } 33 34 #define flush_tlb_kernel_range(start, end) do { } while (0) 35 36 #define update_mmu_cache(vma, addr, ptep) do { } while (0) 37 38 #define flush_tlb_all local_flush_tlb_all 39 #define flush_tlb_mm local_flush_tlb_mm 40 #define flush_tlb_page local_flush_tlb_page 41 #define flush_tlb_range local_flush_tlb_range 42 43 /* 44 * This is called in munmap when we have freed up some page-table 45 * pages. We don't need to do anything here, there's nothing special 46 * about our page-table pages. -- paulus 47 */ 48 static inline void flush_tlb_pgtables(struct mm_struct *mm, 49 unsigned long start, unsigned long end) { } 50 51 #endif /* _ASM_MICROBLAZE_TLBFLUSH_H */ 52