37 lines
1004 B
C
37 lines
1004 B
C
|
/* 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 create_section_mapping(unsigned long start, unsigned long end, int nid);
|
||
|
|
extern int remove_section_mapping(unsigned long start, unsigned long end);
|
||
|
|
|
||
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
||
|
|
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 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 */
|