| /* |
| * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> |
| * Copyright (C) 2008-2009 PetaLogix |
| * Copyright (C) 2006 Atmark Techno, Inc. |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| */ |
| |
| #ifndef _ASM_MICROBLAZE_TLBFLUSH_H |
| #define _ASM_MICROBLAZE_TLBFLUSH_H |
| |
| #ifdef CONFIG_MMU |
| |
| #include <linux/sched.h> |
| #include <linux/threads.h> |
| #include <asm/processor.h> /* For TASK_SIZE */ |
| #include <asm/mmu.h> |
| #include <asm/page.h> |
| #include <asm/pgalloc.h> |
| |
| extern void _tlbie(unsigned long address); |
| extern void _tlbia(void); |
| |
| #define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); } |
| #define __tlbie(x) { _tlbie(x); } |
| |
| static inline void local_flush_tlb_all(void) |
| { __tlbia(); } |
| static inline void local_flush_tlb_mm(struct mm_struct *mm) |
| { __tlbia(); } |
| static inline void local_flush_tlb_page(struct vm_area_struct *vma, |
| unsigned long vmaddr) |
| { __tlbie(vmaddr); } |
| static inline void local_flush_tlb_range(struct vm_area_struct *vma, |
| unsigned long start, unsigned long end) |
| { __tlbia(); } |
| |
| #define flush_tlb_kernel_range(start, end) do { } while (0) |
| |
| #define update_mmu_cache(vma, addr, ptep) do { } while (0) |
| |
| #define flush_tlb_all local_flush_tlb_all |
| #define flush_tlb_mm local_flush_tlb_mm |
| #define flush_tlb_page local_flush_tlb_page |
| #define flush_tlb_range local_flush_tlb_range |
| |
| /* |
| * This is called in munmap when we have freed up some page-table |
| * pages. We don't need to do anything here, there's nothing special |
| * about our page-table pages. -- paulus |
| */ |
| static inline void flush_tlb_pgtables(struct mm_struct *mm, |
| unsigned long start, unsigned long end) { } |
| |
| #else /* CONFIG_MMU */ |
| |
| #define flush_tlb() BUG() |
| #define flush_tlb_all() BUG() |
| #define flush_tlb_mm(mm) BUG() |
| #define flush_tlb_page(vma, addr) BUG() |
| #define flush_tlb_range(mm, start, end) BUG() |
| #define flush_tlb_pgtables(mm, start, end) BUG() |
| #define flush_tlb_kernel_range(start, end) BUG() |
| |
| #endif /* CONFIG_MMU */ |
| |
| #endif /* _ASM_MICROBLAZE_TLBFLUSH_H */ |
