Date: Sun, 20 Jul 2008 11:43:58 -0700
From: Arjan van de Ven <arjan@infradead.org>
To: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: dma_alloc_coherent() on PPC32: physical addresses above 2G
 possible?
Message-ID: <20080720114358.6c88e048@infradead.org>
In-Reply-To: <488385A7.4010509@s5r6.in-berlin.de>
References: <488385A7.4010509@s5r6.in-berlin.de>
Organization: Intel
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 860
Lines: 22

On Sun, 20 Jul 2008 20:36:23 +0200
Stefan Richter <stefanr@s5r6.in-berlin.de> wrote:

> PS:  I don't want to set the DMA mask of this device to
> DMA_31BIT_MASK because that would be detrimental to other functions
> of the device. It's a TI TSB43AB22A FireWire controller.

Hi,

just want to mention that you can set the coherent mask separately from
the generic mask... is that sufficient for your load?
(you can even set it just for this allocation..)

-- 
If you want to reach me at my work email, use arjan@linux.intel.com
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
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/