From: wj_nwpu@163.com (wangjun)
To: linux-arm-kernel@lists.infradead.org
Subject: about arm_add_memory
Date: Tue, 11 Jan 2011 22:19:56 +0800 (CST) [thread overview]
Message-ID: <7ce5e8c1.b773.12d757289fc.Coremail.wj_nwpu@163.com> (raw)
in /arch/arm/kernel/setup.c
static int __init arm_add_memory(unsigned long start, unsigned long size)
...
size -= start & ~PAGE_MASK;
bank->start = PAGE_ALIGN(start);
bank->size = size & PAGE_MASK;
bank->node = PHYS_TO_NID(start);
.....
what size -= start & ~PAGE_MASK to do ?
thanks!
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next reply other threads:[~2011-01-11 14:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-11 14:19 wangjun [this message]
2011-01-16 18:39 ` about arm_add_memory Dave Hylands
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