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 */

 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#include <asm/page.h>
 7/*
 8 * SECTION_SIZE_BITS            2^N: how big each section will be
 9 * MAX_PHYSMEM_BITS             2^N: how much memory we can have in that space
10 */
11
12#define SECTION_SIZE_BITS	(30)
13#define MAX_PHYSMEM_BITS	(50)
14#ifdef CONFIG_FORCE_MAX_ZONEORDER
15#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
16#undef SECTION_SIZE_BITS
17#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
18#endif
19#endif
20
21#endif /* CONFIG_SPARSEMEM */
22
23#ifdef CONFIG_MEMORY_HOTPLUG
24int memory_add_physaddr_to_nid(u64 addr);
25#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
26#endif
27
28#endif /* _ASM_IA64_SPARSEMEM_H */