From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73F8DC34022 for ; Wed, 19 Feb 2020 08:56:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D2CE2464E for ; Wed, 19 Feb 2020 08:56:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=xs4all.nl header.i=@xs4all.nl header.b="d+n6hz/R" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726598AbgBSI4s (ORCPT ); Wed, 19 Feb 2020 03:56:48 -0500 Received: from lb2-smtp-cloud7.xs4all.net ([194.109.24.28]:58457 "EHLO lb2-smtp-cloud7.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726453AbgBSI4r (ORCPT ); Wed, 19 Feb 2020 03:56:47 -0500 Received: from [192.168.2.10] ([46.9.235.248]) by smtp-cloud7.xs4all.net with ESMTPA id 4L9ujzVzQP9a94L9xjnYGj; Wed, 19 Feb 2020 09:56:46 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xs4all.nl; s=s1; t=1582102606; bh=wMYH0++xXVdNrPD6hp0aMAkDKXWc1nMp+q18Zh330pk=; h=Subject:To:From:Message-ID:Date:MIME-Version:Content-Type:From: Subject; b=d+n6hz/Ru5q19j/TzWehXIYzIBao+OwBd0hPRs6nf6SOeHyAOqwZljv6a1h/+z6kY FuFRb+nzZPKUThfC+y9GN/Z6IjRN6MUeKUsXzRplK77SlDC65qgO8czBpEXUlJVW65 Wekmk3YM/bXtERYBsjiYy6L7Ey76YODqCocsfIXeMdxnGlI7Hvepvgk4/rYIVCHj0I af+XCVaHO9+jROi79MLko3Jpqe4HjU2AAwZbC6qbBG+3XjzjK5uK+ObnTXSaJ6khbA yJQWVZUPxRpjTRg5NBWTvvL9TFdJBPAqh2xhLjsq/yT8Vd4g/IPZ3IFZVYlusQVT+n VDvFnb/Cenb7w== Subject: Re: [RFC][PATCHv2 09/12] videobuf2: let user-space know if driver supports cache hints To: Sergey Senozhatsky Cc: Hans Verkuil , Tomasz Figa , Mauro Carvalho Chehab , Kyungmin Park , Marek Szyprowski , Sakari Ailus , Laurent Pinchart , Pawel Osciak , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200204025641.218376-1-senozhatsky@chromium.org> <20200204025641.218376-10-senozhatsky@chromium.org> <2a00bf5c-462e-8d35-844c-55ce2383b8e2@xs4all.nl> <20200219084521.GD122464@google.com> From: Hans Verkuil Message-ID: Date: Wed, 19 Feb 2020 09:56:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200219084521.GD122464@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfOs3ao3oD+Hmrelz0Wsv2/+6kJUoTR/7llL1dgSy8ZeiNOYqbSY6CPNFI8dGjs2sv+P8yb3cqO3kdpqiGfoljP8j0oiyj4FdWEUkTusnaMLM+IPyDTlA rNNw39whGReOOA5tHI20wtMXdmR49MyV2b/pcDFOg2ycO8dPz4V16L4FD8OJzELfwStvqLvEB6N+Y1QET4amupZs1F6O41QKAb8m2hnZNb9dhSyMznu1B1RM UjHSWxKUZIgM3/1PV04mBr19nICBkuQuTb3EeuKcjI3d8OBS2vTqJxZ3U6/u9dfR/SWRW2EKEm3eci5zn4biju/prPlR16lm5f6GSpXHuX/1UbFIrD/qB/IF nK177JD51tesKBwGBeH9Y1zruE9GCOlla88I2nwtWd+Psb3syeW/bFx7BmUyF5YHlOM8ARRxOsYGkGWS/3X7x9z+KyCW3Cea6SSmOFj31CkeopKRWhJCwFzk aYC9HJt1oDv882OkWWM8NTZP/XnfLCfvyWEcBCQ3fKdmGIRAi2LbzKLrRqk/n2yHNA174qY+4Bpkm/Uq Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On 2/19/20 9:45 AM, Sergey Senozhatsky wrote: > On (20/02/19 09:33), Hans Verkuil wrote: >> On 2/4/20 3:56 AM, Sergey Senozhatsky wrote: >>> Add V4L2_BUF_CAP_SUPPORTS_CACHE_HINTS to fill_buf_caps(), which >>> is set when queue supports user-space cache management hints. >> >> Ah, you add the capability here :-) >> >> This should be moved forward in the series. Actually, I think this should >> be merged with the first patch of the series. > > OK, can squash. This way I don't have to split 03/12. > > I can also update V4L2_BUF_FLAG_NO_CACHE_INVALIDATE/CLEAN in 01/12 then. > Would that work? Yes, that makes sense. Hans > > -ss >