From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <hch@lst.de>
Received: from mail.lst.de (verein.lst.de [213.95.11.210])
	(using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits))
	(Client did not present a certificate)
	by ozlabs.org (Postfix) with ESMTP id 9A7F667C02
	for <linuxppc-dev@ozlabs.org>; Fri, 17 Nov 2006 17:49:41 +1100 (EST)
Date: Fri, 17 Nov 2006 07:49:27 +0100
From: Christoph Hellwig <hch@lst.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 2/5] [POWERPC] 8xx: generic 8xx code arch/powerpc port
Message-ID: <20061117064927.GB15013@lst.de>
References: <20061114012504.17455.13833.stgit@localhost.localdomain>
	<20061114012816.17455.12059.stgit@localhost.localdomain>
	<20061115182316.GA20719@lst.de>
	<1163717323.5940.407.camel@localhost.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <1163717323.5940.407.camel@localhost.localdomain>
Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>, Paul Mackerras <paulus@samba.org>
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.ozlabs.org>
List-Unsubscribe: <https://ozlabs.org/mailman/listinfo/linuxppc-dev>,
	<mailto:linuxppc-dev-request@ozlabs.org?subject=unsubscribe>
List-Archive: <http://ozlabs.org/pipermail/linuxppc-dev>
List-Post: <mailto:linuxppc-dev@ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@ozlabs.org?subject=help>
List-Subscribe: <https://ozlabs.org/mailman/listinfo/linuxppc-dev>,
	<mailto:linuxppc-dev-request@ozlabs.org?subject=subscribe>

On Fri, Nov 17, 2006 at 09:48:43AM +1100, Benjamin Herrenschmidt wrote:
> I think those 2 are used for cases where they either have a non-linear
> mapping a-la Amiga/APUS or in cases where they try to get addresses of
> things in the vmalloc area no ?.

For vmalloc we should be using vmalloc_to_page and then page_to_phys,
but again, I'd prefer to see the actual user before making detailed
suggestions.