1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_IA64_SPARSEMEM_H 3#define _ASM_IA64_SPARSEMEM_H 4 5#ifdef CONFIG_SPARSEMEM 6/* 7 * SECTION_SIZE_BITS 2^N: how big each section will be 8 * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space 9 */ 10 11#define SECTION_SIZE_BITS (30) 12#define MAX_PHYSMEM_BITS (50) 13#ifdef CONFIG_FORCE_MAX_ZONEORDER 14#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS) 15#undef SECTION_SIZE_BITS 16#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) 17#endif 18#endif 19 20#endif /* CONFIG_SPARSEMEM */ 21#endif /* _ASM_IA64_SPARSEMEM_H */ 22