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review.evervolv.com / android_kernel_oneplus_msm8996 / 46b51d0835ef1e75dd48fe10c90f9c775301d9ee / . / arch / powerpc / include / asm / sparsemem.h
blob: f6fc0ee813d7afad1cd4572674b363fa5b9e0430 [file] [log] [blame]
David Gibson1fc8b4e2005-11-02 14:48:36 +1100[diff] [blame]1#ifndef _ASM_POWERPC_SPARSEMEM_H
2#define _ASM_POWERPC_SPARSEMEM_H 1
Arnd Bergmann88ced032005-12-16 22:43:46 +0100[diff] [blame]3#ifdef __KERNEL__
Andy Whitcroft145e6642005-06-23 00:08:03 -0700[diff] [blame]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 */
11#define SECTION_SIZE_BITS 24
Geoff Levand261efc32006-11-23 00:46:57 +0100[diff] [blame]12
Aneesh Kumar K.V048ee092012-09-10 02:52:55 +0000[diff] [blame]13#define MAX_PHYSADDR_BITS 46
14#define MAX_PHYSMEM_BITS 46
Andy Whitcroft145e6642005-06-23 00:08:03 -0700[diff] [blame]15
Tony Breedsdb7f37d2008-07-01 11:30:06 +1000[diff] [blame]16#endif /* CONFIG_SPARSEMEM */
17
Mike Kravetz54b79242005-11-07 16:25:48 -0800[diff] [blame]18#ifdef CONFIG_MEMORY_HOTPLUG
Anton Blancharda1194092011-08-10 20:44:24 +0000[diff] [blame]19extern int create_section_mapping(unsigned long start, unsigned long end);
Badari Pulavarty52db9b42008-03-28 11:37:21 +1100[diff] [blame]20extern int remove_section_mapping(unsigned long start, unsigned long end);
Mike Kravetz237a0982005-12-05 12:06:42 -0800[diff] [blame]21#ifdef CONFIG_NUMA
22extern int hot_add_scn_to_nid(unsigned long scn_addr);
23#else
24static inline int hot_add_scn_to_nid(unsigned long scn_addr)
25{
26 return 0;
27}
28#endif /* CONFIG_NUMA */
Mike Kravetz54b79242005-11-07 16:25:48 -0800[diff] [blame]29#endif /* CONFIG_MEMORY_HOTPLUG */
30
Arnd Bergmann88ced032005-12-16 22:43:46 +0100[diff] [blame]31#endif /* __KERNEL__ */
David Gibson1fc8b4e2005-11-02 14:48:36 +1100[diff] [blame]32#endif /* _ASM_POWERPC_SPARSEMEM_H */