1 files changed, 23 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/sparsemem.h b/arch/loongarch/include/asm/sparsemem.h
new file mode 100644
index 000000000000..3d18cdf1b069
--- /dev/null
+++ b/arch/loongarch/include/asm/sparsemem.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LOONGARCH_SPARSEMEM_H
+#define _LOONGARCH_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+
+/*
+ * SECTION_SIZE_BITS		2^N: how big each section will be
+ * MAX_PHYSMEM_BITS		2^N: how much memory we can have in that space
+ */
+#define SECTION_SIZE_BITS	29 /* 2^29 = Largest Huge Page Size */
+#define MAX_PHYSMEM_BITS	48
+
+#endif /* CONFIG_SPARSEMEM */
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+int memory_add_physaddr_to_nid(u64 addr);
+#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
+#endif
+
+#define INIT_MEMBLOCK_RESERVED_REGIONS	(INIT_MEMBLOCK_REGIONS + NR_CPUS)
+
+#endif /* _LOONGARCH_SPARSEMEM_H */