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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 E8DB8C433E1 for ; Wed, 19 Aug 2020 12:45:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B6F332083B for ; Wed, 19 Aug 2020 12:45:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597841141; bh=Jblb++FAI7pjcDkQc1ZUt12Tc0okVK3UwQpwLjxyKWQ=; h=Subject:To:Cc:References:From:Date:In-Reply-To:List-ID:From; b=oaVuH87sASPp5yA90Aj3kurgW0sJma9xy+tVluX5F6jfbRAwrobvMtqxNBp+9lO1O FtXdC2e7Ut/hrjo37LvVP7/JF9/Yvol7Fuq1bcs14V/AGCCh39CG10FCUtPKluzg1F bvYvNUxFJ3C8/WxSJP0q5QAGX/5Fa7M4sUpYMG/k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728442AbgHSMoG (ORCPT ); Wed, 19 Aug 2020 08:44:06 -0400 Received: from mail-ej1-f67.google.com ([209.85.218.67]:32950 "EHLO mail-ej1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728301AbgHSMne (ORCPT ); Wed, 19 Aug 2020 08:43:34 -0400 Received: by mail-ej1-f67.google.com with SMTP id jp10so26153730ejb.0 for ; Wed, 19 Aug 2020 05:43:31 -0700 (PDT) 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:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=LENDs+Ldjd2TS2COVv1/NI8KPZCuxirwhLrfiH290vA=; b=gyYcQzONG5AacaatPIaVMpslxxb9WQzbrNIiDGVRRjGBg1Urfewp25T72zMRmD47/K NlqJoaIYYI09ay49q/y477mwqe7MJxhWrS7MmHFn1ec2Mw43X+kh2yfUA3m8WndkfoDO obvHxFLnp9Zp8Jl7BLg4uGDsx5cqyw9Drbb2VIHmFDI54S5uGnuYWeVuAUP27qQu/d1y iVxKv7rIrp2MovhbQaGbYCXBsQsPswcX7qU3rdzZHAL/AHiCFDFt1M5LHV4NDC/0aVUY QUgxQZXhvB3JRAC13zjkOvqcQeB7N80mQ9TCXN5QMH3PnsGkzvcl5TdJNfkVL68tbFO8 rVqQ== X-Gm-Message-State: AOAM532rGZBFJViYGEPQ8APm2mB2LaoMqhICkTlTzhdpgiwtHBKcPmhj XyzMomYve99GsuV+kVWvX2A= X-Google-Smtp-Source: ABdhPJwFdILYMDzI7DssK6wIfdkYJNRC8oqUEJnjHhWnV34HRKNUTSs+OPyA11kU2DTI9JgMco4TDA== X-Received: by 2002:a17:906:a3d0:: with SMTP id ca16mr24824111ejb.36.1597841010534; Wed, 19 Aug 2020 05:43:30 -0700 (PDT) Received: from [192.168.1.49] (185-219-167-24-static.vivo.cz. [185.219.167.24]) by smtp.gmail.com with ESMTPSA id l23sm18522905eje.46.2020.08.19.05.43.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Aug 2020 05:43:29 -0700 (PDT) Subject: Re: [PATCH 2/2] drm/virtio: Remove open-coded commit-tail function To: Daniel Vetter , DRI Development Cc: linux-rdma@vger.kernel.org, Intel Graphics Development , virtualization@lists.linux-foundation.org, David Airlie , Gerd Hoffmann , Daniel Vetter References: <20200707201229.472834-4-daniel.vetter@ffwll.ch> <20200709123339.547390-1-daniel.vetter@ffwll.ch> <20200709123339.547390-2-daniel.vetter@ffwll.ch> From: Jiri Slaby Autocrypt: addr=jirislaby@gmail.com; prefer-encrypt=mutual; keydata= mQINBE6S54YBEACzzjLwDUbU5elY4GTg/NdotjA0jyyJtYI86wdKraekbNE0bC4zV+ryvH4j rrcDwGs6tFVrAHvdHeIdI07s1iIx5R/ndcHwt4fvI8CL5PzPmn5J+h0WERR5rFprRh6axhOk rSD5CwQl19fm4AJCS6A9GJtOoiLpWn2/IbogPc71jQVrupZYYx51rAaHZ0D2KYK/uhfc6neJ i0WqPlbtIlIrpvWxckucNu6ZwXjFY0f3qIRg3Vqh5QxPkojGsq9tXVFVLEkSVz6FoqCHrUTx wr+aw6qqQVgvT/McQtsI0S66uIkQjzPUrgAEtWUv76rM4ekqL9stHyvTGw0Fjsualwb0Gwdx ReTZzMgheAyoy/umIOKrSEpWouVoBt5FFSZUyjuDdlPPYyPav+hpI6ggmCTld3u2hyiHji2H cDpcLM2LMhlHBipu80s9anNeZhCANDhbC5E+NZmuwgzHBcan8WC7xsPXPaiZSIm7TKaVoOcL 9tE5aN3jQmIlrT7ZUX52Ff/hSdx/JKDP3YMNtt4B0cH6ejIjtqTd+Ge8sSttsnNM0CQUkXps w98jwz+Lxw/bKMr3NSnnFpUZaxwji3BC9vYyxKMAwNelBCHEgS/OAa3EJoTfuYOK6wT6nadm YqYjwYbZE5V/SwzMbpWu7Jwlvuwyfo5mh7w5iMfnZE+vHFwp/wARAQABtCBKaXJpIFNsYWJ5 IDxqaXJpc2xhYnlAZ21haWwuY29tPokCOwQTAQIAJQIbAwYLCQgHAwIGFQgCCQoLBBYCAwEC HgECF4AFAk6S6P4CGQEACgkQvSWxBAa0cEl1Sg//UMXp//d4lP57onXMC2y8gafT1ap/xuss IvXR+3jSdJCHRaUFTPY2hN0ahCAyBQq8puUa6zaXco5jIzsVjLGVfO/s9qmvBTKw9aP6eTU7 77RLssLlQYhRzh7vapRRp4xDBLvBGBv9uvWORx6dtRjh+e0J0nKKce8VEY+jiXv1NipWf+RV vg1gVbAjBnT+5RbJYtIDhogyuBFg14ECKgvy1Do6tg9Hr/kU4ta6ZBEUTh18Io7f0vr1Mlh4 yl2ytuUNymUlkA/ExBNtOhOJq/B087SmGwSLmCRoo5VcRIYK29dLeX6BzDnmBG+mRE63IrKD kf/ZCIwZ7cSbZaGo+gqoEpIqu5spIe3n3JLZQGnF45MR+TfdAUxNQ4F1TrjWyg5Fo30blYYU z6+5tQbaDoBbcSEV9bDt6UOhCx033TrdToMLpee6bUAKehsUctBlfYXZP2huZ5gJxjINRnlI gKTATBAXF+7vMhgyZ9h7eARG6LOdVRwhIFUMGbRCCMXrLLnQf6oAHyVnsZU1+JWANGFBjsyy fRP2+d8TrlhzN9FoIGYiKjATR9CpJZoELFuKLfKOBsc7DfEBpsdusLT0vlzR6JaGae78Od5+ ljzt88OGNyjCRIb6Vso0IqEavtGOcYG8R5gPhMV9n9/bCIVqM5KWJf/4mRaySZp7kcHyJSb0 O6m5Ag0ETpLnhgEQAM+cDWLL+Wvc9cLhA2OXZ/gMmu7NbYKjfth1UyOuBd5emIO+d4RfFM02 XFTIt4MxwhAryhsKQQcA4iQNldkbyeviYrPKWjLTjRXT5cD2lpWzr+Jx7mX7InV5JOz1Qq+P +nJWYIBjUKhI03ux89p58CYil24Zpyn2F5cX7U+inY8lJIBwLPBnc9Z0An/DVnUOD+0wIcYV nZAKDiIXODkGqTg3fhZwbbi+KAhtHPFM2fGw2VTUf62IHzV+eBSnamzPOBc1XsJYKRo3FHNe LuS8f4wUe7bWb9O66PPFK/RkeqNX6akkFBf9VfrZ1rTEKAyJ2uqf1EI1olYnENk4+00IBa+B avGQ8UW9dGW3nbPrfuOV5UUvbnsSQwj67pSdrBQqilr5N/5H9z7VCDQ0dhuJNtvDSlTf2iUF Bqgk3smln31PUYiVPrMP0V4ja0i9qtO/TB01rTfTyXTRtqz53qO5dGsYiliJO5aUmh8swVpo tgK4/57h3zGsaXO9PGgnnAdqeKVITaFTLY1ISg+Ptb4KoliiOjrBMmQUSJVtkUXMrCMCeuPD GHo739Xc75lcHlGuM3yEB//htKjyprbLeLf1y4xPyTeeF5zg/0ztRZNKZicgEmxyUNBHHnBK HQxz1j+mzH0HjZZtXjGu2KLJ18G07q0fpz2ZPk2D53Ww39VNI/J9ABEBAAGJAh8EGAECAAkF Ak6S54YCGwwACgkQvSWxBAa0cEk3tRAAgO+DFpbyIa4RlnfpcW17AfnpZi9VR5+zr496n2jH /1ldwRO/S+QNSA8qdABqMb9WI4BNaoANgcg0AS429Mq0taaWKkAjkkGAT7mD1Q5PiLr06Y/+ Kzdr90eUVneqM2TUQQbK+Kh7JwmGVrRGNqQrDk+gRNvKnGwFNeTkTKtJ0P8jYd7P1gZb9Fwj 9YLxjhn/sVIhNmEBLBoI7PL+9fbILqJPHgAwW35rpnq4f/EYTykbk1sa13Tav6btJ+4QOgbc ezWIwZ5w/JVfEJW9JXp3BFAVzRQ5nVrrLDAJZ8Y5ioWcm99JtSIIxXxt9FJaGc1Bgsi5K/+d yTKLwLMJgiBzbVx8G+fCJJ9YtlNOPWhbKPlrQ8+AY52Aagi9WNhe6XfJdh5g6ptiOILm330m kR4gW6nEgZVyIyTq3ekOuruftWL99qpP5zi+eNrMmLRQx9iecDNgFr342R9bTDlb1TLuRb+/ tJ98f/bIWIr0cqQmqQ33FgRhrG1+Xml6UXyJ2jExmlO8JljuOGeXYh6ZkIEyzqzffzBLXZCu jlYQDFXpyMNVJ2ZwPmX2mWEoYuaBU0JN7wM+/zWgOf2zRwhEuD3A2cO2PxoiIfyUEfB9SSmf faK/S4xXoB6wvGENZ85Hg37C7WDNdaAt6Xh2uQIly5grkgvWppkNy4ZHxE+jeNsU7tg= Message-ID: <5cb80369-75a5-fc83-4683-3a6fc2814104@kernel.org> Date: Wed, 19 Aug 2020 14:43:28 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <20200709123339.547390-2-daniel.vetter@ffwll.ch> Content-Type: text/plain; charset=iso-8859-2 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 09. 07. 20, 14:33, Daniel Vetter wrote: > Exactly matches the one in the helpers. It's not that exact. The order of modeset_enables and planes is different. And this causes a regression -- no fb in qemu. So if I run drm-tip, no fb. If I revert 73f15a9, it works. If I then switch the two calls in vgdev_atomic_commit_tail, it doesn't work again. So the order apparently matters. > This avoids me having to roll out dma-fence critical section > annotations to this copy. > > Signed-off-by: Daniel Vetter > Cc: David Airlie > Cc: Gerd Hoffmann > Cc: virtualization@lists.linux-foundation.org > --- > drivers/gpu/drm/virtio/virtgpu_display.c | 20 -------------------- > 1 file changed, 20 deletions(-) > > diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c > index f3ce49c5a34c..af55b334be2f 100644 > --- a/drivers/gpu/drm/virtio/virtgpu_display.c > +++ b/drivers/gpu/drm/virtio/virtgpu_display.c > @@ -314,25 +314,6 @@ virtio_gpu_user_framebuffer_create(struct drm_device *dev, > return &virtio_gpu_fb->base; > } > > -static void vgdev_atomic_commit_tail(struct drm_atomic_state *state) > -{ > - struct drm_device *dev = state->dev; > - > - drm_atomic_helper_commit_modeset_disables(dev, state); > - drm_atomic_helper_commit_modeset_enables(dev, state); > - drm_atomic_helper_commit_planes(dev, state, 0); > - > - drm_atomic_helper_fake_vblank(state); > - drm_atomic_helper_commit_hw_done(state); > - > - drm_atomic_helper_wait_for_vblanks(dev, state); > - drm_atomic_helper_cleanup_planes(dev, state); > -} > - > -static const struct drm_mode_config_helper_funcs virtio_mode_config_helpers = { > - .atomic_commit_tail = vgdev_atomic_commit_tail, > -}; > - > static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = { > .fb_create = virtio_gpu_user_framebuffer_create, > .atomic_check = drm_atomic_helper_check, > @@ -346,7 +327,6 @@ void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev) > drm_mode_config_init(vgdev->ddev); > vgdev->ddev->mode_config.quirk_addfb_prefer_host_byte_order = true; > vgdev->ddev->mode_config.funcs = &virtio_gpu_mode_funcs; > - vgdev->ddev->mode_config.helper_private = &virtio_mode_config_helpers; > > /* modes will be validated against the framebuffer size */ > vgdev->ddev->mode_config.min_width = XRES_MIN; > thanks, -- js suse labs