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7775379057
This patch add core PREEMPT support for Microblaze. I tried to trace it via tracers and I was able to see any output. I also added low level debug functions to see if that code is called. Signed-off-by: Michal Simek <monstr@monstr.eu>
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*
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* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
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* Copyright (C) 2008-2009 PetaLogix
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* Copyright (C) 2006 Atmark Techno, Inc.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
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#define _ASM_MICROBLAZE_TLBFLUSH_H
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#ifdef CONFIG_MMU
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#include <linux/sched.h>
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#include <linux/threads.h>
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#include <asm/processor.h> /* For TASK_SIZE */
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#include <asm/mmu.h>
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#include <asm/page.h>
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#include <asm/pgalloc.h>
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extern void _tlbie(unsigned long address);
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extern void _tlbia(void);
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#define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); }
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static inline void local_flush_tlb_all(void)
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{ __tlbia(); }
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static inline void local_flush_tlb_mm(struct mm_struct *mm)
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{ __tlbia(); }
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static inline void local_flush_tlb_page(struct vm_area_struct *vma,
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unsigned long vmaddr)
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{ _tlbie(vmaddr); }
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static inline void local_flush_tlb_range(struct vm_area_struct *vma,
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unsigned long start, unsigned long end)
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{ __tlbia(); }
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#define flush_tlb_kernel_range(start, end) do { } while (0)
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#define update_mmu_cache(vma, addr, ptep) do { } while (0)
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#define flush_tlb_all local_flush_tlb_all
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#define flush_tlb_mm local_flush_tlb_mm
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#define flush_tlb_page local_flush_tlb_page
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#define flush_tlb_range local_flush_tlb_range
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/*
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* This is called in munmap when we have freed up some page-table
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* pages. We don't need to do anything here, there's nothing special
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* about our page-table pages. -- paulus
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*/
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static inline void flush_tlb_pgtables(struct mm_struct *mm,
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unsigned long start, unsigned long end) { }
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#else /* CONFIG_MMU */
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#define flush_tlb() BUG()
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#define flush_tlb_all() BUG()
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#define flush_tlb_mm(mm) BUG()
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#define flush_tlb_page(vma, addr) BUG()
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#define flush_tlb_range(mm, start, end) BUG()
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#define flush_tlb_pgtables(mm, start, end) BUG()
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#define flush_tlb_kernel_range(start, end) BUG()
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#endif /* CONFIG_MMU */
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#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
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