Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756309AbcC2NNc (ORCPT ); Tue, 29 Mar 2016 09:13:32 -0400 Received: from mail-wm0-f49.google.com ([74.125.82.49]:38776 "EHLO mail-wm0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751986AbcC2NN2 convert rfc822-to-8bit (ORCPT ); Tue, 29 Mar 2016 09:13:28 -0400 MIME-Version: 1.0 In-Reply-To: <17189219.y56YqHz6yR@diego> References: <1458552518-25527-1-git-send-email-ykk@rock-chips.com> <1571169.Hy8an0n7lM@diego> <17189219.y56YqHz6yR@diego> Date: Tue, 29 Mar 2016 14:13:26 +0100 Message-ID: Subject: Re: [RFC PATCH v1 0/4] Add Rockchip RGA support From: Emil Velikov To: =?UTF-8?Q?Heiko_St=C3=BCbner?= Cc: Yakir Yang , David Airlie , Mark Yao , Joonyoung Shim , Kumar Gala , Ian Campbell , Rob Herring , Pawel Moll , Russell King , devicetree , "Linux-Kernel@Vger. Kernel. Org" , ML dri-devel , linux-rockchip , LAKML Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1271 Lines: 28 On 28 March 2016 at 23:13, Heiko Stübner wrote: > I have the feeling we're going quite a bit off-topic right now :-) . > The binary-driver-crazyness, hasn't really anything to do with Yakir's support > for the RGA (which is about raster-graphics-acceleration, so 2d stuff). > > And me mentioning the armsoc-ddx was merely a means to allow some sort of > different userspace user, as requested in your original mail ;-) . > Seems like I forgot to state the obvious - for all the reasons mentioned, the armsoc ddx seems like a bad example. > Maybe you know a better use-case on where to demonstrate the viability of the > userspace API for it as originally requested. I'm afraid that my RockChip-foo is extremely limited. Perhaps the actual user of these should be mentioned ? xf86-video-rockhip (is there one ?) or any other effort/project that lacks some (all?) of the criticism listed. (Sort of) the bottom line - either reuse the existing interfaces or provide an approved, full blown userspace (libdrm demos/programs do not count) that uses the new interfaces. I haven't made these rules, just a fool^Wguy that repeats them so that people don't abuse them much. If in doubt check with Dave and Daniel V - they had enough repeating these. -Emil