Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938498AbcKNUIV (ORCPT ); Mon, 14 Nov 2016 15:08:21 -0500 Received: from mail-it0-f68.google.com ([209.85.214.68]:36081 "EHLO mail-it0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935195AbcKNUIT (ORCPT ); Mon, 14 Nov 2016 15:08:19 -0500 MIME-Version: 1.0 X-Originating-IP: [2a02:168:56b5:0:ac27:b86c:7764:9429] In-Reply-To: <20161114145720.GB24412@e106950-lin.cambridge.arm.com> References: <1479088796-3809-1-git-send-email-gustavo@padovan.org> <1479088796-3809-4-git-send-email-gustavo@padovan.org> <20161114145720.GB24412@e106950-lin.cambridge.arm.com> From: Daniel Vetter Date: Mon, 14 Nov 2016 21:08:18 +0100 Message-ID: Subject: Re: [PATCH v10 3/3] drm/fence: add out-fences support To: Brian Starkey Cc: Gustavo Padovan , dri-devel , Linux Kernel Mailing List , Daniel Stone , Rob Clark , Greg Hackmann , John Harrison , Laurent Pinchart , Sean Paul , =?UTF-8?Q?St=C3=A9phane_Marchesin?= , m.chehab@samsung.com, Maarten Lankhorst , Gustavo Padovan , "Syrjala, Ville" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 793 Lines: 18 On Mon, Nov 14, 2016 at 3:57 PM, Brian Starkey wrote: > I was just writing some internal docs, and it occurred to me that the > out-fence implementation here doesn't seem to match what we discussed > with Ville a few weeks back (which had completely slipped my mind). > > Did the idea of returning -1 fences for multiple commits within a > frame get dropped? I didn't see any discussion further than that > thread on v5 from October: > http://lkml.iu.edu/hypermail/linux/kernel/1610.2/04727.html Atm we only support a queue depth of 1, and not faster than vblank. This was just discussions to make sure we're not drawing ourselves into a corner with this uabi. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch