1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_SPARSEMEM_H
3 #define _ASM_IA64_SPARSEMEM_H
5 #ifdef CONFIG_SPARSEMEM
8 * SECTION_SIZE_BITS 2^N: how big each section will be
9 * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
12 #define SECTION_SIZE_BITS (30)
13 #define MAX_PHYSMEM_BITS (50)
14 #ifdef CONFIG_FORCE_MAX_ZONEORDER
15 #if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
16 #undef SECTION_SIZE_BITS
17 #define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
21 #endif /* CONFIG_SPARSEMEM */
23 #ifdef CONFIG_MEMORY_HOTPLUG
24 int memory_add_physaddr_to_nid(u64 addr);
25 #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
28 #endif /* _ASM_IA64_SPARSEMEM_H */