MIME-Version: 1.0
In-Reply-To: <CAD11hGxm3K0sw885nH2QWb9N+5=q0qt+8trTAkUjzoejMepeTQ@mail.gmail.com>
References: <20130822202158.GD3490@mtj.dyndns.org>
	<1377205598.10300.715.camel@misato.fc.hp.com>
	<20130822212111.GF3490@mtj.dyndns.org>
	<1377209861.10300.756.camel@misato.fc.hp.com>
	<20130823130440.GC10322@mtj.dyndns.org>
	<1377274448.10300.777.camel@misato.fc.hp.com>
	<521793BB.9080605@gmail.com>
	<CAE9FiQXZ610BrVaXoxY70NS3CaSku7mcVFx+x34-jpYUkG2rdQ@mail.gmail.com>
	<201308231825.r7NIPQl5015165@mail.zytor.com>
	<CAE9FiQVxQtpHp+0b1zFaA4YHx6hDiNSHKDveU=FzS5LwR80RmA@mail.gmail.com>
	<20130823203050.GB31817@sgi.com>
	<CAE9FiQU_JyJbYjpBQjfusc0=qjQjkA+2cxbVynEi_0mgKJFF4g@mail.gmail.com>
	<CAD11hGxm3K0sw885nH2QWb9N+5=q0qt+8trTAkUjzoejMepeTQ@mail.gmail.com>
Date: Fri, 23 Aug 2013 15:08:27 -0700
Message-ID: <CAE9FiQUzM1fHbJOkrCMC4dHD7QPpR=tXyJ-mW=y9G0XucJqyRQ@mail.gmail.com>
Subject: Re: [PATCH 0/8] x86, acpi: Move acpi_initrd_override() earlier.
From: Yinghai Lu <yinghai@kernel.org>
To: chen tang <imtangchen@gmail.com>
Cc: Russ Anderson <rja@sgi.com>, "H. Peter Anvin" <hpa@zytor.com>,
        Zhang Yanfei <zhangyanfei.yes@gmail.com>,
        Toshi Kani <toshi.kani@hp.com>, Tejun Heo <tj@kernel.org>,
        Tang Chen <tangchen@cn.fujitsu.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Bob Moore <robert.moore@intel.com>, Lv Zheng <lv.zheng@intel.com>,
        "Rafael J. Wysocki" <rjw@sisk.pl>, Ingo Molnar <mingo@elte.hu>,
        Andrew Morton <akpm@linux-foundation.org>,
        Thomas Renninger <trenn@suse.de>,
        Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
        Mel Gorman <mgorman@suse.de>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset=ISO-8859-1
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 597
Lines: 20

On Fri, Aug 23, 2013 at 2:50 PM, chen tang <imtangchen@gmail.com> wrote:
>>
>> so the DSDT is 7F493E, and total is more than 8M.
>>
>> that will need BRK to be extended 16M?
>>
>
> Then how about use early_ioremap(), and don't do it that early in
> head_32 and head64 ?

why could early_ioremap() help?

when to use early_ioremap()? what for?

Yinghai
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/