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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4DC5C43334 for ; Tue, 7 Jun 2022 09:58:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240509AbiFGJ6K (ORCPT ); Tue, 7 Jun 2022 05:58:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240345AbiFGJ6D (ORCPT ); Tue, 7 Jun 2022 05:58:03 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAACE5FF3B for ; Tue, 7 Jun 2022 02:58:01 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id 15so15106906pfy.3 for ; Tue, 07 Jun 2022 02:58:01 -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; bh=9nz45oEtyhdTWw5aO28hFMmlfoUDNSYCCQA7E4jzSvg=; b=Q3IKUDBLa76ueYeyE3Ees+lmhUDrZC6sZBet1cDrndFuXyWXfV+os9erO4buG03x5h V3tnWiFXfDjcuV5McLJJF2clQBKPYE/UEmulJWNl6VClMORDQPuJ9BvV3xvOu+VZXNKA /yvpYD7+NohGW6E4j+YgXTp2Vj1w7zXWtmSfE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=9nz45oEtyhdTWw5aO28hFMmlfoUDNSYCCQA7E4jzSvg=; b=3bsthK3zf5+3ai6zEBtoQu/eDaFdoaferCq5qiUkRphcGcLdoUGxmv2uXKeRAqxGvc d4EJBOzfSnWnAX86mlf9OFfBPSoiIh4pGyPK2g/WxW3KM5we0guivuuuTR8rCrooDpKk YyxyAiJfPnbYv3OFIB0tKom1MvDhGbrOPNyuFiVJWt7WhsvK+somAunxX+Z1CebtQfAb tsyNVnuQ0x3v6HUCtTywij7E3TPqw971K2tfu+Oer2vE3kciNVnHPvrZYvGo7zcjlqzu 9Q2BDGzIf/mJ/cYZpnxZdNKr0vnfYHpR1C//lWz0rpFhNww320sIUxpse7l3BE3SGsvo rULw== X-Gm-Message-State: AOAM532A3IOf6ODxyNwSJktq94v/nr4qecTdj6UXy5XPJla+y9ZdYopE INztS0tUKzW614U9m+kpToBU8ufx1SvssA== X-Google-Smtp-Source: ABdhPJzVDbKNA6gfvbkptY/KFBmh911SC4DaYSI04lxcehxOkrAzRt4x8Ba/bNtklmWYLy6mOMDi9g== X-Received: by 2002:a63:688a:0:b0:3fa:a80c:a228 with SMTP id d132-20020a63688a000000b003faa80ca228mr23999361pgc.182.1654595881446; Tue, 07 Jun 2022 02:58:01 -0700 (PDT) Received: from google.com ([2401:fa00:8f:203:1d9e:c04a:f940:ddd6]) by smtp.gmail.com with ESMTPSA id y9-20020a1709027c8900b0016782c55790sm3173271pll.232.2022.06.07.02.57.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 02:58:00 -0700 (PDT) Date: Tue, 7 Jun 2022 18:57:55 +0900 From: Sergey Senozhatsky To: Nicolas Dufresne Cc: Justin Green , Sergey Senozhatsky , linux-media@vger.kernel.org, "tiffany.lin@mediatek.com" , "andrew-ct.chen@mediatek.com" , mchehab@kernel.org, "matthias.bgg@gmail.com" Subject: Re: [PATCH] mediatek/vcodec: Enable incoherent buffer allocation Message-ID: References: <92a0163fa2bb20a5c577ca0222e497f0e2bee926.camel@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <92a0163fa2bb20a5c577ca0222e497f0e2bee926.camel@collabora.com> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On (22/06/01 11:13), Nicolas Dufresne wrote: > I'd be very interested to learn from Sergey on why this feature wasn't enable > more broadly. Well, we needed this for one particular device and we didn't plan on expanding this to drivers that we cannot test, verify, etc. and for the hardware that we don't run. > I notice though the begin/end access bits have not been > implemented, so when used with DMABuf, this isn't going to behave quite right by > default. We cared only for MMAP buffers. Got time to cook patches?