diff options
author | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
---|---|---|
committer | David Vrabel <david.vrabel@csr.com> | 2008-11-19 14:48:07 +0000 |
commit | dba0a918722ee0f0ba3442575e4448c3ab622be4 (patch) | |
tree | fdb466cf09e7916135098d651b18924b2fe9ba5f /arch/sh/mm/mmap.c | |
parent | 0996e6382482ce9014787693d3884e9468153a5c (diff) | |
parent | 7f0f598a0069d1ab072375965a4b69137233169c (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Diffstat (limited to 'arch/sh/mm/mmap.c')
-rw-r--r-- | arch/sh/mm/mmap.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c new file mode 100644 index 000000000000..8837d511710a --- /dev/null +++ b/arch/sh/mm/mmap.c @@ -0,0 +1,31 @@ +/* + * 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; +} |