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-rw-r--r--arch/sh/include/asm/io.h4
-rw-r--r--arch/sh/mm/Makefile_322
-rw-r--r--arch/sh/mm/Makefile_642
-rw-r--r--arch/sh/mm/mmap.c31
4 files changed, 37 insertions, 2 deletions
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 436c285..65eaae3 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -293,6 +293,10 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
*/
#define xlate_dev_kmem_ptr(p) p
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+int valid_phys_addr_range(unsigned long addr, size_t size);
+int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+
#endif /* __KERNEL__ */
#endif /* __ASM_SH_IO_H */
diff --git a/arch/sh/mm/Makefile_32 b/arch/sh/mm/Makefile_32
index 70e0906..f066e76 100644
--- a/arch/sh/mm/Makefile_32
+++ b/arch/sh/mm/Makefile_32
@@ -2,7 +2,7 @@
# Makefile for the Linux SuperH-specific parts of the memory manager.
#
-obj-y := init.o extable_32.o consistent.o
+obj-y := init.o extable_32.o consistent.o mmap.o
ifndef CONFIG_CACHE_OFF
cache-$(CONFIG_CPU_SH2) := cache-sh2.o
diff --git a/arch/sh/mm/Makefile_64 b/arch/sh/mm/Makefile_64
index 0d92a8a..9481d0f 100644
--- a/arch/sh/mm/Makefile_64
+++ b/arch/sh/mm/Makefile_64
@@ -2,7 +2,7 @@
# Makefile for the Linux SuperH-specific parts of the memory manager.
#
-obj-y := init.o consistent.o
+obj-y := init.o consistent.o mmap.o
mmu-y := tlb-nommu.o pg-nommu.o extable_32.o
mmu-$(CONFIG_MMU) := fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
new file mode 100644
index 0000000..1f3cc3d
--- /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 < (PAGE_OFFSET + (PFN_START << PAGE_SHIFT)))
+ 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;
+}
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