summaryrefslogtreecommitdiffstats
path: root/arch/ia64/include/asm/sparsemem.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64/include/asm/sparsemem.h')
-rw-r--r--arch/ia64/include/asm/sparsemem.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/sparsemem.h b/arch/ia64/include/asm/sparsemem.h
new file mode 100644
index 0000000000..a58f8b466d
--- /dev/null
+++ b/arch/ia64/include/asm/sparsemem.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IA64_SPARSEMEM_H
+#define _ASM_IA64_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+#include <asm/page.h>
+/*
+ * 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 (30)
+#define MAX_PHYSMEM_BITS (50)
+#ifdef CONFIG_ARCH_FORCE_MAX_ORDER
+#if (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT > SECTION_SIZE_BITS)
+#undef SECTION_SIZE_BITS
+#define SECTION_SIZE_BITS (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT)
+#endif
+#endif
+
+#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
+
+#endif /* _ASM_IA64_SPARSEMEM_H */