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Yo u c a n n o t s p e c i f y __GFP_HIGHMEM to either __get_free_pages() or kmalloc(). Because these both return a logical address, and not a page structure, it is possible that these functions woul... 阅读全文
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CONFIG_MV_INTERNAL_REGS_SELECTIVE_MAPPING=y 选择映射内部寄存器(分散开,每个64K),否则映射1M寄存器空间 sysmap.c文件 #if defined(CONFIG_MV_INTERNAL_REGS_SELECTIVE_MAPPING) /* need to make sure it is big enough to hold all mapping... 阅读全文
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Virtual Memory I: the problem http://en.wikipedia.org/wiki/High_memory http://lwn.net/Articles/75174/ [Posted March 10, 2004 by corbet] This article serves mostly as background to help understand why ... 阅读全文
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http://www.cublog.cn/u2/60011/showart_1010489.html MACHINE_START宏 linux2.6.18内核,在Mach-s3c2410.c文件中,有如下的宏定义: MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch to SMDK241... 阅读全文