From 392e8802486cb573b916e746010e141a75f507e6 Mon Sep 17 00:00:00 2001 From: Kevin Date: Sat, 15 Nov 2014 09:58:27 +0800 Subject: init android origin source code --- ANDROID_3.4.5/arch/powerpc/include/asm/sparsemem.h | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 ANDROID_3.4.5/arch/powerpc/include/asm/sparsemem.h (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/sparsemem.h') diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/sparsemem.h b/ANDROID_3.4.5/arch/powerpc/include/asm/sparsemem.h new file mode 100644 index 00000000..0c5fa314 --- /dev/null +++ b/ANDROID_3.4.5/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 int 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 */ -- cgit