/* tlbflush.h: TLB flushing functions * * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _ASM_TLBFLUSH_H #define _ASM_TLBFLUSH_H #include <linux/mm.h> #include <asm/processor.h> #ifdef [31mCONFIG_MMU[0m #ifndef __ASSEMBLY__ extern void asmlinkage __flush_tlb_all(void); extern void asmlinkage __flush_tlb_mm(unsigned long contextid); extern void asmlinkage __flush_tlb_page(unsigned long contextid, unsigned long start); extern void asmlinkage __flush_tlb_range(unsigned long contextid, unsigned long start, unsigned long end); #endif /* !__ASSEMBLY__ */ #define flush_tlb_all() \ do { \ preempt_disable(); \ __flush_tlb_all(); \ preempt_enable(); \ } while(0) #define flush_tlb_mm(mm) \ do { \ preempt_disable(); \ __flush_tlb_mm((mm)->context.id); \ preempt_enable(); \ } while(0) #define flush_tlb_range(vma,start,end) \ do { \ preempt_disable(); \ __flush_tlb_range((vma)->vm_mm->context.id, start, end); \ preempt_enable(); \ } while(0) #define flush_tlb_page(vma,addr) \ do { \ preempt_disable(); \ __flush_tlb_page((vma)->vm_mm->context.id, addr); \ preempt_enable(); \ } while(0) #define __flush_tlb_global() flush_tlb_all() #define flush_tlb() flush_tlb_all() #define flush_tlb_kernel_range(start, end) flush_tlb_all() #else #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_kernel_range(start, end) BUG() #endif #endif /* _ASM_TLBFLUSH_H */ |