Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _ASM_POWERPC_SPARSEMEM_H
2#define _ASM_POWERPC_SPARSEMEM_H 1
3#ifdef __KERNEL__
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
12#define MAX_PHYSADDR_BITS 44
13#define MAX_PHYSMEM_BITS 44
14
15#ifdef CONFIG_MEMORY_HOTPLUG
16extern void create_section_mapping(unsigned long start, unsigned long end);
17#ifdef CONFIG_NUMA
18extern int hot_add_scn_to_nid(unsigned long scn_addr);
19#else
20static inline int hot_add_scn_to_nid(unsigned long scn_addr)
21{
22 return 0;
23}
24#endif /* CONFIG_NUMA */
25#endif /* CONFIG_MEMORY_HOTPLUG */
26
27#endif /* CONFIG_SPARSEMEM */
28
29#endif /* __KERNEL__ */
30#endif /* _ASM_POWERPC_SPARSEMEM_H */