1#ifndef _ASM_IA64_SPARSEMEM_H 2#define _ASM_IA64_SPARSEMEM_H 3 4#ifdef CONFIG_SPARSEMEM 5/* 6 * SECTION_SIZE_BITS 2^N: how big each section will be 7 * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space 8 */ 9 10#define SECTION_SIZE_BITS (30) 11#define MAX_PHYSMEM_BITS (50) 12#ifdef CONFIG_FORCE_MAX_ZONEORDER 13#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) 14#undef SECTION_SIZE_BITS 15#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) 16#endif 17#endif 18 19#endif /* CONFIG_SPARSEMEM */ 20#endif /* _ASM_IA64_SPARSEMEM_H */ 21