1 #ifndef _ASM_POWERPC_SPARSEMEM_H
2 #define _ASM_POWERPC_SPARSEMEM_H 1
5 #ifdef CONFIG_SPARSEMEM
7 * SECTION_SIZE_BITS 2^N: how big each section will be
8 * MAX_PHYSADDR_BITS 2^N: how much physical address space we have
9 * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
11 #define SECTION_SIZE_BITS 24
13 #define MAX_PHYSADDR_BITS 44
14 #define MAX_PHYSMEM_BITS 44
16 #ifdef CONFIG_MEMORY_HOTPLUG
17 extern void create_section_mapping(unsigned long start, unsigned long end);
19 extern int hot_add_scn_to_nid(unsigned long scn_addr);
21 static inline int hot_add_scn_to_nid(unsigned long scn_addr)
25 #endif /* CONFIG_NUMA */
26 #endif /* CONFIG_MEMORY_HOTPLUG */
28 #endif /* CONFIG_SPARSEMEM */
30 #endif /* __KERNEL__ */
31 #endif /* _ASM_POWERPC_SPARSEMEM_H */