/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_SPARSEMEM_H #define _ASM_POWERPC_SPARSEMEM_H 1 #ifdef __KERNEL__ #ifdef [31mCONFIG_SPARSEMEM[0m /* * 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 [31mCONFIG_MEMORY_HOTPLUG[0m extern int create_section_mapping(unsigned long start, unsigned long end, int nid); extern int remove_section_mapping(unsigned long start, unsigned long end); #ifdef [31mCONFIG_PPC_BOOK3S_64[0m extern int resize_hpt_for_hotplug(unsigned long new_mem_size); #else static inline int resize_hpt_for_hotplug(unsigned long new_mem_size) { return 0; } #endif #ifdef [31mCONFIG_NUMA[0m 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 */ |