4 * Copyright (C) 2008 Paul Mundt
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
15 * You really shouldn't be using read() or write() on /dev/mem. This
16 * might go away in the future.
18 int valid_phys_addr_range(unsigned long addr, size_t count)
20 if (addr < __MEMORY_START)
22 if (addr + count > __pa(high_memory))
28 int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)