[linux-2.6-block.git] / include / asm-powerpc / sparsemem.h

#ifndef _ASM_POWERPC_SPARSEMEM_H
#define _ASM_POWERPC_SPARSEMEM_H 1
#ifdef __KERNEL__

#ifdef CONFIG_SPARSEMEM
/*
 * SECTION_SIZE_BITS		2^N: how big each section will be
 * MAX_PHYSADDR_BITS		2^N: how much physical address space we have
 * MAX_PHYSMEM_BITS		2^N: how much memory we can have in that space
 */
#define SECTION_SIZE_BITS       24
#define MAX_PHYSADDR_BITS       44
#define MAX_PHYSMEM_BITS        44

#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);
#ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else
static inline int hot_add_scn_to_nid(unsigned long scn_addr)
{
	return 0;
}
#endif /* CONFIG_NUMA */
#endif /* CONFIG_MEMORY_HOTPLUG */

#endif /* CONFIG_SPARSEMEM */

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_SPARSEMEM_H */
Commit	Line	Data
1fc8b4ef DG	1	#ifndef _ASM_POWERPC_SPARSEMEM_H
1fc8b4ef DG	2	#define _ASM_POWERPC_SPARSEMEM_H 1
88ced031	3	#ifdef __KERNEL__
145e6642 AW	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
a7df61a0 AB	12	#define MAX_PHYSADDR_BITS 44
a7df61a0 AB	13	#define MAX_PHYSMEM_BITS 44
145e6642	14
54b79248 MK	15	#ifdef CONFIG_MEMORY_HOTPLUG
54b79248 MK	16	extern void create_section_mapping(unsigned long start, unsigned long end);
237a0989 MK	17	#ifdef CONFIG_NUMA
	18	extern int hot_add_scn_to_nid(unsigned long scn_addr);
	19	#else
	20	static inline int hot_add_scn_to_nid(unsigned long scn_addr)
	21	{
	22	return 0;
	23	}
	24	#endif /* CONFIG_NUMA */
54b79248 MK	25	#endif /* CONFIG_MEMORY_HOTPLUG */
54b79248 MK	26
145e6642 AW	27	#endif /* CONFIG_SPARSEMEM */
145e6642 AW	28
88ced031	29	#endif /* __KERNEL__ */
1fc8b4ef	30	#endif /* _ASM_POWERPC_SPARSEMEM_H */