From: Christoph Hellwig <hch@lst.de>
To: John Whitney <jwhitney-linuxppc@sands-edge.com>
Cc: Eugene Surovegin <ebs@ebshome.net>,
Dan Malek <dan@embeddededge.com>,
Matt Porter <mporter@kernel.crashing.org>,
linuxppc-dev@lists.linuxppc.org
Subject: Re: Problems with dma_alloc_coherent()
Date: Fri, 2 Apr 2004 07:45:39 +0200 [thread overview]
Message-ID: <20040402054539.GA18600@lst.de> (raw)
In-Reply-To: <2C2F00BD-8410-11D8-9FF0-000A95A07384@sands-edge.com>
On Thu, Apr 01, 2004 at 02:10:00PM -0500, John Whitney wrote:
> sounds like a good solution to me, although I'd like to see the
> "device" structure get that DMA offset I mentioned, so the DMA API
> wouldn't have to have a special case for each new bus-type added (PLB,
That doesn't work because there's much more complex bridges that do
complicated remapping of the bus addresses and it's not a simple offset.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2004-04-02 5:45 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-01 15:59 Problems with dma_alloc_coherent() John Whitney
2004-04-01 16:30 ` John Whitney
2004-04-01 16:51 ` Dan Malek
2004-04-01 17:01 ` Tom Rini
2004-04-01 17:05 ` Matt Porter
2004-04-01 17:51 ` John Whitney
2004-04-01 18:16 ` Matt Porter
2004-04-01 18:19 ` Eugene Surovegin
2004-04-01 18:33 ` Eugene Surovegin
2004-04-01 18:33 ` John Whitney
2004-04-01 18:40 ` Eugene Surovegin
2004-04-01 18:48 ` John Whitney
2004-04-01 18:55 ` Dan Malek
2004-04-01 18:59 ` Eugene Surovegin
2004-04-01 19:10 ` John Whitney
2004-04-01 19:17 ` Eugene Surovegin
2004-04-01 19:35 ` John Whitney
2004-04-02 1:22 ` Benjamin Herrenschmidt
2004-04-01 20:52 ` Michael R. Zucca
2004-04-01 22:00 ` Eugene Surovegin
2004-04-01 22:39 ` Michael R. Zucca
2004-04-02 16:50 ` John Whitney
2004-04-02 18:50 ` Michael R. Zucca
2004-04-02 19:27 ` John Whitney
2004-04-02 20:20 ` Michael R. Zucca
2004-04-02 21:01 ` John Whitney
2004-04-03 7:54 ` Adrian Cox
2004-04-03 12:43 ` John Whitney
2004-04-05 9:05 ` Adrian Cox
2004-04-03 17:33 ` Brad Boyer
2004-04-03 23:17 ` Paul Mackerras
2004-04-04 8:15 ` Adrian Cox
2004-04-02 22:54 ` Paul Mackerras
2004-04-03 7:33 ` Adrian Cox
2004-04-04 22:56 ` Benjamin Herrenschmidt
2004-04-02 5:45 ` Christoph Hellwig [this message]
2004-04-01 20:49 ` Matt Porter
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