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author | Ingo Molnar <mingo@elte.hu> | 2008-12-23 16:23:23 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 16:23:23 +0100 |
commit | 1ccedb7cdba6886939dd8b4c8f965a826f696e56 (patch) | |
tree | 0f5fc519a68faca5318c296315c9b6c502907056 /arch/sh/mm/mmap.c | |
parent | a98f8fd24fb24fcb9a359553e64dd6aac5cf4279 (diff) | |
parent | 929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff) |
Merge commit 'v2.6.28-rc9' into x86/apic
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 00000000000..8837d511710 --- /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; +} |