linux/include/asm-powerpc/sparsemem.h

21 lines
607 B
C

#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 44
#define MAX_PHYSMEM_BITS 44
#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 */