1#ifndef _ASM_POWERPC_SPARSEMEM_H 2#define _ASM_POWERPC_SPARSEMEM_H 1 3#ifdef __KERNEL__ 4 5#ifdef CONFIG_SPARSEMEM 6/* 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 10 */ 11#define SECTION_SIZE_BITS 24 12 13#if defined(CONFIG_PS3_USE_LPAR_ADDR) 14#define MAX_PHYSADDR_BITS 47 15#define MAX_PHYSMEM_BITS 47 16#else 17#define MAX_PHYSADDR_BITS 44 18#define MAX_PHYSMEM_BITS 44 19#endif 20 21#ifdef CONFIG_MEMORY_HOTPLUG 22extern void create_section_mapping(unsigned long start, unsigned long end); 23#ifdef CONFIG_NUMA 24extern int hot_add_scn_to_nid(unsigned long scn_addr); 25#else 26static inline int hot_add_scn_to_nid(unsigned long scn_addr) 27{ 28 return 0; 29} 30#endif /* CONFIG_NUMA */ 31#endif /* CONFIG_MEMORY_HOTPLUG */ 32 33#endif /* CONFIG_SPARSEMEM */ 34 35#endif /* __KERNEL__ */ 36#endif /* _ASM_POWERPC_SPARSEMEM_H */ 37