linux-kernel - Re: memcpy_fromio in dmi

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Message-ID: <51788C24.9020608@oracle.com>
Date:	Thu, 25 Apr 2013 09:51:32 +0800
From:	Zhenzhong Duan <zhenzhong.duan@...cle.com>
To:	Jean Delvare <jdelvare@...e.de>
CC:	"Luck, Tony" <tony.luck@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Yu, Fenghua" <fenghua.yu@...el.com>
Subject: Re: memcpy_fromio in dmi_scan.c


On 2013-04-25 03:22, Jean Delvare wrote:
> What is strange is that the call to memcpy_fromio was added a long 
> time ago, long before dmi_scan was enabled on ia64. 
I think memcpy_fromio is used to copy bios data to a mem buffer to speed 
up read access.

zduan

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