From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m6ECPE41019259 for ; Mon, 14 Jul 2008 08:25:14 -0400 Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m6ECP3UB017466 for ; Mon, 14 Jul 2008 08:25:03 -0400 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1KIN71-00066B-0r for video4linux-list@redhat.com; Mon, 14 Jul 2008 12:25:03 +0000 Received: from 82-135-208-232.static.zebra.lt ([82.135.208.232]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 14 Jul 2008 12:25:03 +0000 Received: from paulius.zaleckas by 82-135-208-232.static.zebra.lt with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 14 Jul 2008 12:25:03 +0000 To: video4linux-list@redhat.com From: Paulius Zaleckas Date: Mon, 14 Jul 2008 15:20:34 +0300 Message-ID: <487B4492.2020301@teltonika.lt> References: <20080714120204.4806.87287.sendpatchset@rx1.opensource.se> <20080714120240.4806.15664.sendpatchset@rx1.opensource.se> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: <20080714120240.4806.15664.sendpatchset@rx1.opensource.se> Cc: video4linux-list@redhat.com, linux-sh@vger.kernel.org Subject: Re: [PATCH 04/06] videobuf: Add physically contiguous queue code V3 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: Magnus Damm wrote: > This is V3 of the physically contiguous videobuf queues patch. > Useful for hardware such as the SuperH Mobile CEU which doesn't > support scatter gatter bus mastering. gather ^ > > Since it may be difficult to allocate large chunks of physically > contiguous memory after some uptime due to fragmentation, this code > allocates memory using dma_alloc_coherent(). Architectures supporting > dma_declare_coherent_memory() can easily avoid fragmentation issues > by using dma_declare_coherent_memory() to force dma_alloc_coherent() > to allocate from a certain pre-allocated memory area. > > Signed-off-by: Magnus Damm Tested-by: Paulius Zaleckas -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list