mirror of https://gitee.com/openkylin/linux.git
22 lines
621 B
C
22 lines
621 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_IA64_SPARSEMEM_H
|
|
#define _ASM_IA64_SPARSEMEM_H
|
|
|
|
#ifdef CONFIG_SPARSEMEM
|
|
/*
|
|
* SECTION_SIZE_BITS 2^N: how big each section will be
|
|
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
|
|
*/
|
|
|
|
#define SECTION_SIZE_BITS (30)
|
|
#define MAX_PHYSMEM_BITS (50)
|
|
#ifdef CONFIG_FORCE_MAX_ZONEORDER
|
|
#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
|
|
#undef SECTION_SIZE_BITS
|
|
#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* CONFIG_SPARSEMEM */
|
|
#endif /* _ASM_IA64_SPARSEMEM_H */
|