From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.logicpd.com ([174.46.170.145]:36650 "HELO smtp.logicpd.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932265AbbCQW5o (ORCPT ); Tue, 17 Mar 2015 18:57:44 -0400 Message-ID: <5508B15A.2050900@logicpd.com> Date: Tue, 17 Mar 2015 17:57:30 -0500 From: Tim Nordell MIME-Version: 1.0 To: Laurent Pinchart , CC: Sakari Ailus Subject: Re: [PATCH v2 25/26] omap3isp: Move to videobuf2 References: <1398083352-8451-1-git-send-email-laurent.pinchart@ideasonboard.com> <1398083352-8451-26-git-send-email-laurent.pinchart@ideasonboard.com> In-Reply-To: <1398083352-8451-26-git-send-email-laurent.pinchart@ideasonboard.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi - On 04/21/14 07:29, Laurent Pinchart wrote: > Replace the custom buffers queue implementation with a videobuf2 queue. > > Signed-off-by: Laurent Pinchart I realize this is late (it's in the kernel now), but I'm noticing that this does not appear to properly support the scatter-gather buffers that were previously supported as far as I recall (and can tell with what was removed with this patch), especially when using USERPTR. You can observe this using "yavta" with the -u parameter. Can you confirm if this works for you? I get the following output from the kernel when attempting to stream a 640x480 UYVY framebuffer: [ 111.381256] contiguous mapping is too small 589824/614400 - Tim