memory.c

优龙2410linux2.6.8内核源代码

/*
 *  linux/arch/h8300/mm/memory.c
 *
 *  Copyright (C) 2002  Yoshinori Sato <[e-mail]>,
 *
 *  Based on:
 *
 *  linux/arch/m68knommu/mm/memory.c
 *
 *  Copyright (C) 1998  Kenneth Albanowski <[e-mail]>,
 *  Copyright (C) 1999-2002, Greg Ungerer ([e-mail])
 *
 *  Based on:
 *
 *  linux/arch/m68k/mm/memory.c
 *
 *  Copyright (C) 1995  Hamish Macdonald
 */

#include <linux/config.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/slab.h>

#include <asm/setup.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
#include <asm/traps.h>
#include <asm/io.h>

void cache_clear (unsigned long paddr, int len)
{
}


void cache_push (unsigned long paddr, int len)
{
}

void cache_push_v (unsigned long vaddr, int len)
{
}

/* Map some physical address range into the kernel address space. The
 * code is copied and adapted from map_chunk().
 */

unsigned long kernel_map(unsigned long paddr, unsigned long size,
			 int nocacheflag, unsigned long *memavailp )
{
	return paddr;
}

#ifdef MAGIC_ROM_PTR

int is_in_rom(unsigned long addr)
{
	/* Anything not in operational RAM is returned as in rom! */
	if (addr < _ramstart || addr >= _ramend)
 		return 1;
	else
		return 0;
}

#endif