/* | |
* arch/sh/mm/mmap.c | |
* | |
* Copyright (C) 2008 Paul Mundt | |
* | |
* This file is subject to the terms and conditions of the GNU General Public | |
* License. See the file "COPYING" in the main directory of this archive | |
* for more details. | |
*/ | |
#include <linux/io.h> | |
#include <linux/mm.h> | |
#include <asm/page.h> | |
/* | |
* You really shouldn't be using read() or write() on /dev/mem. This | |
* might go away in the future. | |
*/ | |
int valid_phys_addr_range(unsigned long addr, size_t count) | |
{ | |
if (addr < __MEMORY_START) | |
return 0; | |
if (addr + count > __pa(high_memory)) | |
return 0; | |
return 1; | |
} | |
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size) | |
{ | |
return 1; | |
} |