Commit | Line | Data |
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1fc8b4ef DG |
1 | #ifndef _ASM_POWERPC_SPARSEMEM_H |
2 | #define _ASM_POWERPC_SPARSEMEM_H 1 | |
88ced031 | 3 | #ifdef __KERNEL__ |
145e6642 AW |
4 | |
5 | #ifdef CONFIG_SPARSEMEM | |
6 | /* | |
7 | * SECTION_SIZE_BITS 2^N: how big each section will be | |
8 | * MAX_PHYSADDR_BITS 2^N: how much physical address space we have | |
9 | * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space | |
10 | */ | |
cb694769 | 11 | #define SECTION_SIZE_BITS 24 |
261efc3f | 12 | |
a7df61a0 AB |
13 | #define MAX_PHYSADDR_BITS 44 |
14 | #define MAX_PHYSMEM_BITS 44 | |
145e6642 | 15 | |
db7f37de TB |
16 | #endif /* CONFIG_SPARSEMEM */ |
17 | ||
54b79248 MK |
18 | #ifdef CONFIG_MEMORY_HOTPLUG |
19 | extern void create_section_mapping(unsigned long start, unsigned long end); | |
52db9b44 | 20 | extern int remove_section_mapping(unsigned long start, unsigned long end); |
237a0989 MK |
21 | #ifdef CONFIG_NUMA |
22 | extern int hot_add_scn_to_nid(unsigned long scn_addr); | |
23 | #else | |
24 | static inline int hot_add_scn_to_nid(unsigned long scn_addr) | |
25 | { | |
26 | return 0; | |
27 | } | |
28 | #endif /* CONFIG_NUMA */ | |
54b79248 MK |
29 | #endif /* CONFIG_MEMORY_HOTPLUG */ |
30 | ||
88ced031 | 31 | #endif /* __KERNEL__ */ |
1fc8b4ef | 32 | #endif /* _ASM_POWERPC_SPARSEMEM_H */ |