From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: Re: [RFC] Host1x/TegraDRM UAPI (drm_tegra_submit_syncpt_incr) Date: Sun, 28 Jun 2020 00:47:13 +0300 Message-ID: <9ddfedff-f465-b22d-5d6f-c7ba01731455@gmail.com> References: <9b06b7ec-f952-2561-7afb-5653514cd5d3@kapsi.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <9b06b7ec-f952-2561-7afb-5653514cd5d3-/1wQRMveznE@public.gmane.org> Content-Language: en-US Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mikko Perttunen , Thierry Reding , Jon Hunter , David Airlie , Daniel Vetter , sumit.semwal-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, gustavo-THi1TnShQwVAfugRpC6u6w@public.gmane.org Cc: "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , dri-devel , talho-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, bhuntsman-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org List-Id: linux-tegra@vger.kernel.org 23.06.2020 15:09, Mikko Perttunen пишет: > struct drm_tegra_submit_syncpt_incr { >         /* >          * [in] Syncpoint FD of the syncpoint that the job will >          *   increment. >          */ >         __s32 syncpt_fd; > >         /* >          * [in] Number of increments that the job will do. >          */ >         __u32 num_incrs; > >         /* >          * [out] Value the syncpoint will have once all increments have >          *   executed. >          */ >         __u32 fence_value; > >         __u32 reserved[1]; > }; The job should be considered executed once the final sync point is incremented. Hence, there should be only one sync point per-job for increment, why would you ever need more than one? Could you please explain what this submit_syncpt_incr is about? 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=-2.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 E2E0BC433DF for ; Sun, 28 Jun 2020 20:36:44 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B6F53206C3 for ; Sun, 28 Jun 2020 20:36:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Y+HHlMeU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6F53206C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 498646E180; Sun, 28 Jun 2020 20:36:38 +0000 (UTC) Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by gabe.freedesktop.org (Postfix) with ESMTPS id AEC756E311 for ; Sat, 27 Jun 2020 21:47:16 +0000 (UTC) Received: by mail-lf1-x135.google.com with SMTP id t74so6988846lff.2 for ; Sat, 27 Jun 2020 14:47:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=ekENi2JYHEuJAdUbeYjX727t9pq4C9ly4N7cklnjims=; b=Y+HHlMeUG0RxTatZAp0BPfDVMCKaT90nwXFPWAs42ZQKMIoxCS5yVC0FIxLIfp+tO1 ZhMq5RHuqS53fl9CjjZCU1GOElYN3Ze9brBStc5gSyzYbnSBrdJyggIfuwjwsh6DPRHv xzaUq6GgjCTNyYCwL7kSB/bdDMlfD7nIhXsWU288Qj/4cLfno5qfnk1H4ToFlYVckZE4 orHv6ex4e+qr7MRXvbh713z9FQPxkXIKiuIus1rcG27AG7jNTvW9zoHoFszHOCgwYPUI m1GbQRKuG7rGf8oe2iEAMXaymIev9tpn+bI9BTzOjsDkea0L53e7rYvG87vd2TNHx9WK MFrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=ekENi2JYHEuJAdUbeYjX727t9pq4C9ly4N7cklnjims=; b=WkSjCpMlyEF4qjrPd5L3+oAX7NOiaKh/XgKlyK335qwFYGi6B5p7AQ5CnPcO2uDYBO rxd94QDGZkbZWPz00pfCjLy9PoDvghkeseuPT45LIYIJRX8GbMfg7pgFIEPZ81p/o9w3 c2rTKAnbzd9A472a2JTLG9InLc2b9n+Rk2F6WGKm8leRm+9uLi8he51bqwSg+jqmOSny lIL3QjmHWE36xWwO3dbOytD5pund1QXglC8He1tHpvKOmIqFSUh22JW3MTYDlrnPs0O1 EtO1rG+HPpavQYoAtUeW2TBXWJy0v9xl1LaEJzbjLAIn654moOfYeNKUr/wtSs90oaSv 3+VA== X-Gm-Message-State: AOAM533rLHhzUrK8XPdg9CH5dpigGFASrLCZpAO8BgEezzT1KUVRd498 9qOkiG1zd/GKCqLqmNCwhPg= X-Google-Smtp-Source: ABdhPJzDdiwU3twKlFT/dTT9VX4bQgwiRxsN/AhDhVDQqgiKa4z3Ss5iaPiYiwbzaI9FkKhAunhr3g== X-Received: by 2002:a19:ef09:: with SMTP id n9mr5354460lfh.215.1593294435138; Sat, 27 Jun 2020 14:47:15 -0700 (PDT) Received: from [192.168.2.145] (79-139-237-54.dynamic.spd-mgts.ru. [79.139.237.54]) by smtp.googlemail.com with ESMTPSA id u19sm854922ljk.0.2020.06.27.14.47.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 27 Jun 2020 14:47:14 -0700 (PDT) Subject: Re: [RFC] Host1x/TegraDRM UAPI (drm_tegra_submit_syncpt_incr) To: Mikko Perttunen , Thierry Reding , Jon Hunter , David Airlie , Daniel Vetter , sumit.semwal@linaro.org, gustavo@padovan.org References: <9b06b7ec-f952-2561-7afb-5653514cd5d3@kapsi.fi> From: Dmitry Osipenko Message-ID: <9ddfedff-f465-b22d-5d6f-c7ba01731455@gmail.com> Date: Sun, 28 Jun 2020 00:47:13 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <9b06b7ec-f952-2561-7afb-5653514cd5d3@kapsi.fi> Content-Language: en-US X-Mailman-Approved-At: Sun, 28 Jun 2020 20:36:36 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-tegra@vger.kernel.org" , talho@nvidia.com, bhuntsman@nvidia.com, dri-devel Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" MjMuMDYuMjAyMCAxNTowOSwgTWlra28gUGVydHR1bmVuINC/0LjRiNC10YI6Cj4gc3RydWN0IGRy bV90ZWdyYV9zdWJtaXRfc3luY3B0X2luY3Igewo+IMKgwqDCoMKgwqDCoMKgIC8qCj4gwqDCoMKg wqDCoMKgwqDCoCAqIFtpbl0gU3luY3BvaW50IEZEIG9mIHRoZSBzeW5jcG9pbnQgdGhhdCB0aGUg am9iIHdpbGwKPiDCoMKgwqDCoMKgwqDCoMKgICrCoMKgIGluY3JlbWVudC4KPiDCoMKgwqDCoMKg wqDCoMKgICovCj4gwqDCoMKgwqDCoMKgwqAgX19zMzIgc3luY3B0X2ZkOwo+IAo+IMKgwqDCoMKg wqDCoMKgIC8qCj4gwqDCoMKgwqDCoMKgwqDCoCAqIFtpbl0gTnVtYmVyIG9mIGluY3JlbWVudHMg dGhhdCB0aGUgam9iIHdpbGwgZG8uCj4gwqDCoMKgwqDCoMKgwqDCoCAqLwo+IMKgwqDCoMKgwqDC oMKgIF9fdTMyIG51bV9pbmNyczsKPiAKPiDCoMKgwqDCoMKgwqDCoCAvKgo+IMKgwqDCoMKgwqDC oMKgwqAgKiBbb3V0XSBWYWx1ZSB0aGUgc3luY3BvaW50IHdpbGwgaGF2ZSBvbmNlIGFsbCBpbmNy ZW1lbnRzIGhhdmUKPiDCoMKgwqDCoMKgwqDCoMKgICrCoMKgIGV4ZWN1dGVkLgo+IMKgwqDCoMKg wqDCoMKgwqAgKi8KPiDCoMKgwqDCoMKgwqDCoCBfX3UzMiBmZW5jZV92YWx1ZTsKPiAKPiDCoMKg wqDCoMKgwqDCoCBfX3UzMiByZXNlcnZlZFsxXTsKPiB9OwoKVGhlIGpvYiBzaG91bGQgYmUgY29u c2lkZXJlZCBleGVjdXRlZCBvbmNlIHRoZSBmaW5hbCBzeW5jIHBvaW50IGlzCmluY3JlbWVudGVk LgoKSGVuY2UsIHRoZXJlIHNob3VsZCBiZSBvbmx5IG9uZSBzeW5jIHBvaW50IHBlci1qb2IgZm9y IGluY3JlbWVudCwgd2h5CndvdWxkIHlvdSBldmVyIG5lZWQgbW9yZSB0aGFuIG9uZT8KCkNvdWxk IHlvdSBwbGVhc2UgZXhwbGFpbiB3aGF0IHRoaXMgc3VibWl0X3N5bmNwdF9pbmNyIGlzIGFib3V0 PwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2 ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK