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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-11 12:57:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-11 12:57:01 +0200 |
| commit | 6de9c70882ecdee63a652d493bf2353963bd4c22 (patch) | |
| tree | 9d219e705492331c97f5f7dccce3b0b1a29251bf /arch/powerpc/include/asm/sparsemem.h | |
| parent | d406d21d90dce2e66c7eb4a44605aac947fe55fb (diff) | |
| parent | 796aadeb1b2db9b5d463946766c5bbfd7717158c (diff) | |
| download | kernel-crypto-6de9c70882ecdee63a652d493bf2353963bd4c22.tar.gz kernel-crypto-6de9c70882ecdee63a652d493bf2353963bd4c22.tar.xz kernel-crypto-6de9c70882ecdee63a652d493bf2353963bd4c22.zip | |
Merge branch 'linus' into x86/cleanups
Diffstat (limited to 'arch/powerpc/include/asm/sparsemem.h')
| -rw-r--r-- | arch/powerpc/include/asm/sparsemem.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/sparsemem.h b/arch/powerpc/include/asm/sparsemem.h new file mode 100644 index 00000000000..54a47ea2c3a --- /dev/null +++ b/arch/powerpc/include/asm/sparsemem.h @@ -0,0 +1,32 @@ +#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_PHYSADDR_BITS 2^N: how much physical address space we have + * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space + */ +#define SECTION_SIZE_BITS 24 + +#define MAX_PHYSADDR_BITS 44 +#define MAX_PHYSMEM_BITS 44 + +#endif /* CONFIG_SPARSEMEM */ + +#ifdef CONFIG_MEMORY_HOTPLUG +extern void create_section_mapping(unsigned long start, unsigned long end); +extern int remove_section_mapping(unsigned long start, unsigned long end); +#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 */ |