1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_POWERPC_SPARSEMEM_H
3 #define _ASM_POWERPC_SPARSEMEM_H 1
6 #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
11 #define SECTION_SIZE_BITS 24
13 #endif /* CONFIG_SPARSEMEM */
15 #ifdef CONFIG_MEMORY_HOTPLUG
16 extern int create_section_mapping(unsigned long start, unsigned long end,
17 int nid, pgprot_t prot);
18 extern int remove_section_mapping(unsigned long start, unsigned long end);
21 extern int hot_add_scn_to_nid(unsigned long scn_addr);
23 static inline int hot_add_scn_to_nid(unsigned long scn_addr)
27 #endif /* CONFIG_NUMA */
28 #endif /* CONFIG_MEMORY_HOTPLUG */
30 #endif /* __KERNEL__ */
31 #endif /* _ASM_POWERPC_SPARSEMEM_H */