1 /* 2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 3 * Copyright (C) 2008-2009 PetaLogix 4 * Copyright (C) 2006 Atmark Techno, Inc. 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11 #ifndef _ASM_MICROBLAZE_TLBFLUSH_H 12 #define _ASM_MICROBLAZE_TLBFLUSH_H 13 14 #ifdef CONFIG_MMU 15 16 #include <linux/sched.h> 17 #include <linux/threads.h> 18 #include <asm/processor.h> /* For TASK_SIZE */ 19 #include <asm/mmu.h> 20 #include <asm/page.h> 21 #include <asm/pgalloc.h> 22 23 extern void _tlbie(unsigned long address); 24 extern void _tlbia(void); 25 26 #define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); } 27 #define __tlbie(x) { _tlbie(x); } 28 29 static inline void local_flush_tlb_all(void) 30 { __tlbia(); } 31 static inline void local_flush_tlb_mm(struct mm_struct *mm) 32 { __tlbia(); } 33 static inline void local_flush_tlb_page(struct vm_area_struct *vma, 34 unsigned long vmaddr) 35 { __tlbie(vmaddr); } 36 static inline void local_flush_tlb_range(struct vm_area_struct *vma, 37 unsigned long start, unsigned long end) 38 { __tlbia(); } 39 40 #define flush_tlb_kernel_range(start, end) do { } while (0) 41 42 #define update_mmu_cache(vma, addr, ptep) do { } while (0) 43 44 #define flush_tlb_all local_flush_tlb_all 45 #define flush_tlb_mm local_flush_tlb_mm 46 #define flush_tlb_page local_flush_tlb_page 47 #define flush_tlb_range local_flush_tlb_range 48 49 /* 50 * This is called in munmap when we have freed up some page-table 51 * pages. We don't need to do anything here, there's nothing special 52 * about our page-table pages. -- paulus 53 */ 54 static inline void flush_tlb_pgtables(struct mm_struct *mm, 55 unsigned long start, unsigned long end) { } 56 57 #else /* CONFIG_MMU */ 58 59 #define flush_tlb() BUG() 60 #define flush_tlb_all() BUG() 61 #define flush_tlb_mm(mm) BUG() 62 #define flush_tlb_page(vma, addr) BUG() 63 #define flush_tlb_range(mm, start, end) BUG() 64 #define flush_tlb_pgtables(mm, start, end) BUG() 65 #define flush_tlb_kernel_range(start, end) BUG() 66 67 #endif /* CONFIG_MMU */ 68 69 #endif /* _ASM_MICROBLAZE_TLBFLUSH_H */ 70