tlb.c

来自「Linux Kernel 2.6.9 for OMAP1710」· C语言 代码 · 共 88 行

/* 
 * Copyright (C) 2000, 2001, 2002 Jeff Dike ([e-mail])
 * Licensed under the GPL
 */

#include "linux/mm.h"
#include "asm/page.h"
#include "asm/pgalloc.h"
#include "asm/tlbflush.h"
#include "choose-mode.h"
#include "mode_kern.h"

void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
{
	address &= PAGE_MASK;
	flush_tlb_range(vma, address, address + PAGE_SIZE);
}

void flush_tlb_all(void)
{
	flush_tlb_mm(current->mm);
}
  
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
	CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt, 
			 flush_tlb_kernel_range_skas, start, end);
}

void flush_tlb_kernel_vm(void)
{
	CHOOSE_MODE(flush_tlb_kernel_vm_tt(), flush_tlb_kernel_vm_skas());
}

void __flush_tlb_one(unsigned long addr)
{
	CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr);
}

void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 
		     unsigned long end)
{
	CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start, 
			 end);
}

void flush_tlb_mm(struct mm_struct *mm)
{
	CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm);
}

void force_flush_all(void)
{
	CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas());
}

pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address)
{
	return(pgd_offset(mm, address));
}

pmd_t *pmd_offset_proc(pgd_t *pgd, unsigned long address)
{
	return(pmd_offset(pgd, address));
}

pte_t *pte_offset_proc(pmd_t *pmd, unsigned long address)
{
	return(pte_offset_kernel(pmd, address));
}

pte_t *addr_pte(struct task_struct *task, unsigned long addr)
{
	return(pte_offset_kernel(pmd_offset(pgd_offset(task->mm, addr), addr), 
				 addr));
}

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-file-style: "linux"
 * End:
 */