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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-15 15:46:29 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-15 15:46:29 +0400 |
| commit | b2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (patch) | |
| tree | 53ccb1c2c14751fe69cf93102e76e97021f6df07 /arch/powerpc/include/asm/sparsemem.h | |
| parent | 4f962d4d65923d7b722192e729840cfb79af0a5a (diff) | |
| parent | 278429cff8809958d25415ba0ed32b59866ab1a8 (diff) | |
| download | linux-b2aaf8f74cdc84a9182f6cabf198b7763bcb9d40.tar.xz | |
Merge branch 'linus' into stackprotector
Conflicts:
arch/x86/kernel/Makefile
include/asm-x86/pda.h
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 000000000000..54a47ea2c3aa --- /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 */ |