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authorIngo Molnar <mingo@elte.hu>2008-12-16 20:57:41 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-16 20:57:41 +0100
commitdd7a5230cd651bfb119d222561c4032f30dd5659 (patch)
tree85628ef75d1f512f43df6f760980b6cce6cf40c7 /arch/sh/mm/mmap.c
parent050dc6944b9ca2186f4729ab44e0da3743933941 (diff)
parent8b1fae4e4200388b64dd88065639413cb3f1051c (diff)
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Merge commit 'v2.6.28-rc8' into x86/cpufeature
Diffstat (limited to 'arch/sh/mm/mmap.c')
-rw-r--r--arch/sh/mm/mmap.c31
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 0000000..8837d51
--- /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;
+}