kernel-ark/include/asm-frv/tlbflush.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

78 lines
2.1 KiB
C

/* 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/config.h>
#include <linux/mm.h>
#include <asm/processor.h>
#ifdef CONFIG_MMU
#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()
#define flush_tlb_pgtables(mm,start,end) \
asm volatile("movgs %0,scr0 ! movgs %0,scr1" :: "r"(ULONG_MAX) : "memory");
#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_pgtables(mm,start,end) BUG()
#define flush_tlb_kernel_range(start, end) BUG()
#endif
#endif /* _ASM_TLBFLUSH_H */