[mirror_ubuntu-artful-kernel.git] / include / asm-powerpc / sparsemem.h

#ifndef _ASM_POWERPC_SPARSEMEM_H
#define _ASM_POWERPC_SPARSEMEM_H 1

#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       38
#define MAX_PHYSMEM_BITS        36

#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);
#endif /* CONFIG_MEMORY_HOTPLUG */

#endif /* CONFIG_SPARSEMEM */

#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
145e6642 AW	3
	4	#ifdef CONFIG_SPARSEMEM
	5	/*
	6	* SECTION_SIZE_BITS 2^N: how big each section will be
	7	* MAX_PHYSADDR_BITS 2^N: how much physical address space we have
	8	* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
	9	*/
	10	#define SECTION_SIZE_BITS 24
	11	#define MAX_PHYSADDR_BITS 38
	12	#define MAX_PHYSMEM_BITS 36
	13
54b79248 MK	14	#ifdef CONFIG_MEMORY_HOTPLUG
	15	extern void create_section_mapping(unsigned long start, unsigned long end);
	16	#endif /* CONFIG_MEMORY_HOTPLUG */
	17
145e6642 AW	18	#endif /* CONFIG_SPARSEMEM */
145e6642 AW	19
1fc8b4ef	20	#endif /* _ASM_POWERPC_SPARSEMEM_H */