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-rw-r--r--include/asm-generic/memory_model.h6
-rw-r--r--include/linux/mm.h6
2 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 30d8d33491dd..52226e14bd7d 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -46,6 +46,12 @@
__pgdat->node_start_pfn; \
})
+#elif defined(CONFIG_SPARSEMEM_VMEMMAP)
+
+/* memmap is virtually contigious. */
+#define __pfn_to_page(pfn) (vmemmap + (pfn))
+#define __page_to_pfn(page) ((page) - vmemmap)
+
#elif defined(CONFIG_SPARSEMEM)
/*
* Note: section's mem_map is encorded to reflect its start_pfn.
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1692dd6cb915..d216abbd0574 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1218,5 +1218,11 @@ extern int randomize_va_space;
const char * arch_vma_name(struct vm_area_struct *vma);
+struct page *sparse_early_mem_map_populate(unsigned long pnum, int nid);
+int vmemmap_populate(struct page *start_page, unsigned long pages, int node);
+int vmemmap_populate_pmd(pud_t *, unsigned long, unsigned long, int);
+void *vmemmap_alloc_block(unsigned long size, int node);
+void vmemmap_verify(pte_t *, int, unsigned long, unsigned long);
+
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */