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@@ -57,13 +57,9 @@ extern unsigned long min_low_pfn;
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extern unsigned long max_pfn;
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#ifdef CONFIG_MMU
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-#define pfn_to_page(pfn) (mem_map + (pfn))
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-#define page_to_pfn(page) ((unsigned long) ((page) - mem_map))
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#define pfn_valid(pfn) ((pfn) < max_mapnr)
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-
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#else
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-#define pfn_to_page(pfn) (&mem_map[(pfn) - (PAGE_OFFSET >> PAGE_SHIFT)])
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-#define page_to_pfn(page) ((PAGE_OFFSET >> PAGE_SHIFT) + (unsigned long) ((page) - mem_map))
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+#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
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#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn)
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#endif
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@@ -87,6 +83,7 @@ extern unsigned long max_pfn;
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#define WANT_PAGE_VIRTUAL 1
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#endif
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+#include <asm-generic/memory_model.h>
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#include <asm-generic/page.h>
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#endif /* _ASM_PAGE_H */
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