Cregit: Linux 5.15: sparsemem.h

Contributors: 10
Author	Tokens	Token Proportion	Commits	Commit Proportion
Mike Kravetz	42	46.67%	2	16.67%
Andy Whitcroft	14	15.56%	1	8.33%
David Gibson	9	10.00%	2	16.67%
Dan J Williams	7	7.78%	1	8.33%
Arnd Bergmann	6	6.67%	1	8.33%
Michael Ellerman	6	6.67%	1	8.33%
Aneesh Kumar K.V	3	3.33%	1	8.33%
Tony Breeds	1	1.11%	1	8.33%
Anton Blanchard	1	1.11%	1	8.33%
Greg Kroah-Hartman	1	1.11%	1	8.33%
Total	90		12

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_SPARSEMEM_H
#define _ASM_POWERPC_SPARSEMEM_H 1
#ifdef __KERNEL__

#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       24

#endif /* CONFIG_SPARSEMEM */

#ifdef CONFIG_MEMORY_HOTPLUG
extern int remove_section_mapping(unsigned long start, unsigned long end);
extern int memory_add_physaddr_to_nid(u64 start);
#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid

#ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else
static inline int hot_add_scn_to_nid(unsigned long scn_addr)
{
	return 0;
}
#endif /* CONFIG_NUMA */
#endif /* CONFIG_MEMORY_HOTPLUG */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_SPARSEMEM_H */