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=DKIMWL_WL_HIGH,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 795CDC3F2C6 for ; Mon, 9 Mar 2020 04:03:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 52353206D7 for ; Mon, 9 Mar 2020 04:03:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="g98VXD5f" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726071AbgCIEDI (ORCPT ); Mon, 9 Mar 2020 00:03:08 -0400 Received: from mail-pl1-f179.google.com ([209.85.214.179]:45666 "EHLO mail-pl1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbgCIEDI (ORCPT ); Mon, 9 Mar 2020 00:03:08 -0400 Received: by mail-pl1-f179.google.com with SMTP id b22so3418541pls.12 for ; Sun, 08 Mar 2020 21:03:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=MePM1LXmB9zu10CipKCKT3AOCH0ORjlABBFj6iXCvwo=; b=g98VXD5fWvExJ1O1zTNwK2U30AXvWKVY+rszXkxQb4p4RypmzbUbGoKjultjn8YWKf Cc3+YRCE/xZo+6pNSg6+mUgMRDvTBTafPeUbeaTFY8+iPw7E2FSjUlKTW0xmBEcG81ci KmijLJmDOXv2p0lOtqJIWLKmTWgITI9OSPx5o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=MePM1LXmB9zu10CipKCKT3AOCH0ORjlABBFj6iXCvwo=; b=r0ChHuyRy6uk0hKlEmQlHRMNLtyEqBZICP/IW3YE4wF/k3KJh0ThR1heShksH6zSTX enBPhZtYkzGnZTkTnpp0RMmvp7yOcLSqu3DqldBTUt7+R6p9Wg2HPZkyoI1DxHUFyd1U W0ybuQQK1l7p/ohKkVR0efFXnwUpSugkUfmV6g7T4vVhX6o4pZBb4pB034JAWlIyhS/X 6ratf2B5fY1FmKGrPUB8GhxJtCx6fW4w5TVMbuA01RV9xHY1wwdaz8+JsAgo6uNafDKc 3oOGpLyzGUT6HbQwLbBCgNK4tyqKqWFoRbF1uBOfs+9CdGs3nHHMne1dxDFdytH7rnJB MXow== X-Gm-Message-State: ANhLgQ1ZicsC0TeL28P4mfyDyymNu2+Ikp8A0zOlLjlTuSmV2IE1WIb2 cTA4unUBwg2oay1JQtT2ZkVssA== X-Google-Smtp-Source: ADFU+vtw1v/LUtTzhPiRwFAG99XIoB6s3/fRb+QC53epenxq92s4BOkmVBFa4hEM9XaA1/1M7jNzkg== X-Received: by 2002:a17:90a:8586:: with SMTP id m6mr16360811pjn.121.1583726587196; Sun, 08 Mar 2020 21:03:07 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:5bbb:c872:f2b1:f53b]) by smtp.gmail.com with ESMTPSA id l13sm16686316pjq.23.2020.03.08.21.03.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Mar 2020 21:03:06 -0700 (PDT) Date: Mon, 9 Mar 2020 13:03:05 +0900 From: Sergey Senozhatsky To: Hans Verkuil Cc: Sergey Senozhatsky , 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 Subject: Re: [PATCHv4 01/11] videobuf2: add cache management members Message-ID: <20200309040305.GB9460@google.com> References: <20200302041213.27662-1-senozhatsky@chromium.org> <20200302041213.27662-2-senozhatsky@chromium.org> <17060663-9c30-de5e-da58-0c847b93e4d3@xs4all.nl> <20200307094634.GB29464@google.com> <6f5916dd-63f6-5d19-13f4-edd523205a1f@xs4all.nl> <20200307112838.GA125961@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On (20/03/07 12:47), Hans Verkuil wrote: > > 1) attempting to use V4L2_FLAG_MEMORY_NON_CONSISTENT will clear the flag > upon return (test with both reqbufs and create_bufs). > 2) attempting to use V4L2_BUF_FLAG_NO_CACHE_INVALIDATE or V4L2_BUF_FLAG_NO_CACHE_CLEAN > [..] > > All these tests can be done in testReqBufs(). MEMORY_NON_CONSISTENT is a queue property, we set it during queue setup. NO_CACHE_INVALIDATE/FLAG_NO_CACHE_CLEAN is a buffer property, we set it when we qbuf. I'm not sure if all of these can be done in testReqBufts(). -ss