lkml.org 
[lkml]   [2009]   [Apr]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 15/30] microblaze_mmu_v1: Update tlb.h and tlbflush.h
    Date
    From: Michal Simek <monstr@monstr.eu>

    Signed-off-by: Michal Simek <monstr@monstr.eu>
    ---
    arch/microblaze/include/asm/tlb.h | 8 +++++
    arch/microblaze/include/asm/tlbflush.h | 48 ++++++++++++++++++++++++++++++++
    2 files changed, 56 insertions(+), 0 deletions(-)

    diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
    index d1dfe37..c472d28 100644
    --- a/arch/microblaze/include/asm/tlb.h
    +++ b/arch/microblaze/include/asm/tlb.h
    @@ -1,4 +1,6 @@
    /*
    + * 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
    @@ -13,4 +15,10 @@

    #include <asm-generic/tlb.h>

    +#ifdef CONFIG_MMU
    +#define tlb_start_vma(tlb, vma) do { } while (0)
    +#define tlb_end_vma(tlb, vma) do { } while (0)
    +#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
    +#endif
    +
    #endif /* _ASM_MICROBLAZE_TLB_H */
    diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h
    index d7fe762..eb31a0e 100644
    --- a/arch/microblaze/include/asm/tlbflush.h
    +++ b/arch/microblaze/include/asm/tlbflush.h
    @@ -1,4 +1,6 @@
    /*
    + * 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
    @@ -9,6 +11,50 @@
    #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() _tlbia()
    +
    +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, pte) 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()
    @@ -17,4 +63,6 @@
    #define flush_tlb_pgtables(mm, start, end) BUG()
    #define flush_tlb_kernel_range(start, end) BUG()

    +#endif /* CONFIG_MMU */
    +
    #endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
    --
    1.5.5.1


    \
     
     \ /
      Last update: 2009-04-27 11:57    [W:0.023 / U:32.036 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site