#ifndef __ASM_MEMORY_MODEL_H
#define __ASM_MEMORY_MODEL_H
-#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#if defined(CONFIG_FLATMEM)
#define __pfn_to_page(pfn) \
({ unsigned long __pfn = (pfn); \
- unsigned long __nid = arch_pfn_to_nid(pfn); \
+ unsigned long __nid = arch_pfn_to_nid(__pfn); \
NODE_DATA(__nid)->node_mem_map + arch_local_page_offset(__pfn, __nid);\
})
__pgdat->node_start_pfn; \
})
+#elif defined(CONFIG_SPARSEMEM_VMEMMAP)
+
+/* memmap is virtually contiguous. */
+#define __pfn_to_page(pfn) (vmemmap + (pfn))
+#define __page_to_pfn(page) (unsigned long)((page) - vmemmap)
+
#elif defined(CONFIG_SPARSEMEM)
/*
* Note: section's mem_map is encorded to reflect its start_pfn.
})
#endif /* CONFIG_FLATMEM/DISCONTIGMEM/SPARSEMEM */
-#ifdef CONFIG_OUT_OF_LINE_PFN_TO_PAGE
-struct page;
-/* this is useful when inlined pfn_to_page is too big */
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *page);
-#else
#define page_to_pfn __page_to_pfn
#define pfn_to_page __pfn_to_page
-#endif /* CONFIG_OUT_OF_LINE_PFN_TO_PAGE */
#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
#endif