projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1fc8b4ef DG |
2 | #ifndef _ASM_POWERPC_SPARSEMEM_H |
| 3 | #define _ASM_POWERPC_SPARSEMEM_H 1 | |
| 88ced031 | 4 | #ifdef __KERNEL__ |
| 145e6642 AW |
5 | |
| 6 | #ifdef CONFIG_SPARSEMEM | |
| 7 | /* | |
| 8 | * SECTION_SIZE_BITS 2^N: how big each section will be | |
| 145e6642 AW |
9 | * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space |
| 10 | */ | |
| 11 | #define SECTION_SIZE_BITS 24 | |
| 145e6642 | 12 | |
| db7f37de TB |
13 | #endif /* CONFIG_SPARSEMEM */ |
| 14 | ||
| 54b79248 | 15 | #ifdef CONFIG_MEMORY_HOTPLUG |
| 29ab6c47 | 16 | extern int create_section_mapping(unsigned long start, unsigned long end, int nid); |
| 52db9b44 | 17 | extern int remove_section_mapping(unsigned long start, unsigned long end); |
| 36b390fd ME |
18 | |
| 19 | #ifdef CONFIG_PPC_BOOK3S_64 | |
| f172acbf | 20 | extern int resize_hpt_for_hotplug(unsigned long new_mem_size); |
| 36b390fd | 21 | #else |
| f172acbf | 22 | static inline int resize_hpt_for_hotplug(unsigned long new_mem_size) { return 0; } |
| 36b390fd ME |
23 | #endif |
| 24 | ||
| 237a0989 MK |
25 | #ifdef CONFIG_NUMA |
| 26 | extern int hot_add_scn_to_nid(unsigned long scn_addr); | |
| 27 | #else | |
| 28 | static inline int hot_add_scn_to_nid(unsigned long scn_addr) | |
| 29 | { | |
| 30 | return 0; | |
| 31 | } | |
| 32 | #endif /* CONFIG_NUMA */ | |
| 54b79248 MK |
33 | #endif /* CONFIG_MEMORY_HOTPLUG */ |
| 34 | ||
| 88ced031 | 35 | #endif /* __KERNEL__ */ |
| 1fc8b4ef | 36 | #endif /* _ASM_POWERPC_SPARSEMEM_H */ |