From patchwork Wed Mar 25 10:40:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keiichi Watanabe X-Patchwork-Id: 11457649 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A21A61668 for ; Wed, 25 Mar 2020 12:19:35 +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 80EC020775 for ; Wed, 25 Mar 2020 12:19:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="jjB2X695" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 80EC020775 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org 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 6B3E26E846; Wed, 25 Mar 2020 12:19:31 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pj1-x1042.google.com (mail-pj1-x1042.google.com [IPv6:2607:f8b0:4864:20::1042]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0E5276E7D9 for ; Wed, 25 Mar 2020 10:40:57 +0000 (UTC) Received: by mail-pj1-x1042.google.com with SMTP id ng8so867453pjb.2 for ; Wed, 25 Mar 2020 03:40:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=DvKg2IHi3Qj70iBHg+WUL8Lkjl5cn54XoVnrEhL3Mm8=; b=jjB2X695zwinTyCqhhpHsSpEM1BFt/EQHCZAQkZrno2Ypr109M5Xwhg20kV0IpfCqs y0terG7TofI2Q9YoV1N7NVeZ74FBif6BvbIVxdnIdXBHZWnUtMGkRPfdtsBSW1RAFlnx CTblKpJvHFL+XYXDBQHhLGUh3VBAfgLTAF4+4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=DvKg2IHi3Qj70iBHg+WUL8Lkjl5cn54XoVnrEhL3Mm8=; b=SQ/FpOD72GB+zajuIlyu3jdKy8+r38tAzcn5dXq3xtPeISILEtkIQ6izK/H92xWfER 1+XOKHPwkG50XBKPeUekas2n3Z4vlU4pekGGxyhBlrTL5S/6kj1C53I+Uxa9Ewv1vf8/ r1WqGixL/0Z/DW1YW4hvZkrRWlwQPRbS7deTpkYlWdHK99LMCGLuuDptUYg9S6RbIuOE TixNyg+rHaodpMza0Aa+BCx2yQNmgKLBzJ3LYL0Kf4DPEIhJMOFJXuNykEZyke7ihQBf 0f07p0bwwgl6EYh811tNDE0tpkroYwX0nmxaAQ16knEoQD6IbIhLPKP6xYdp7R/lRTMZ TsAg== X-Gm-Message-State: ANhLgQ0miLFwrQH7t7q2qf8jzaja2+DHXU4d6OTrzOiRnhBctu78MFer kOr/JlPKuCipJFPdNFVFqrOf4w== X-Google-Smtp-Source: ADFU+vvXebHRwUAL4QYgPA/E5Nymgdnz5gpZduRO6NtNGffciBeXDeNZkR6KYzkdrkpatyvnsfHqjQ== X-Received: by 2002:a17:90a:6501:: with SMTP id i1mr3013827pjj.32.1585132856562; Wed, 25 Mar 2020 03:40:56 -0700 (PDT) Received: from keiichiw1.tok.corp.google.com ([2401:fa00:8f:203:863a:e217:a16c:53f2]) by smtp.gmail.com with ESMTPSA id v26sm5150320pfn.51.2020.03.25.03.40.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2020 03:40:55 -0700 (PDT) From: Keiichi Watanabe To: virtio-dev@lists.oasis-open.org, linux-media@vger.kernel.org Subject: [PATCH RFC 0/1] Support virtio objects in virtio-video driver Date: Wed, 25 Mar 2020 19:40:38 +0900 Message-Id: <20200325104039.196058-1-keiichiw@chromium.org> X-Mailer: git-send-email 2.25.1.696.g5e7596f4ac-goog MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 25 Mar 2020 12:19:30 +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: Samiullah Khawaja , linaro-mm-sig@lists.linaro.org, alexlau@chromium.org, tfiga@chromium.org, Kiran Pawar , acourbot@chromium.org, "Michael S . Tsirkin" , egranata@google.com, Jason Wang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Nikolay Martyanov , Keiichi Watanabe , kraxel@redhat.com, hverkuil@xs4all.nl, Dmitry Sepp , Mauro Carvalho Chehab , virtualization@lists.linux-foundation.org, posciak@chromium.org, stevensd@chromium.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This implements a feature in virtio-video driver to use exported virtio objects as video buffers. So, the users will be able to use resources allocated by other virtio devices such as virtio-gpu. The virtio protocol for this feature is proposed by [1]. This commit depends on the following unmerged patches: * Virtio-video driver patch [2] * Patch series for virtio cross-device resources [3] * ChromeOS's local patch to use data_offset for offset of multiplanar format [4] [1]: https://markmail.org/message/wxdne5re7aaugbjg [2]: https://patchwork.linuxtv.org/patch/61717/ [3]: https://patchwork.kernel.org/project/linux-media/list/?series=254707 [4]: https://chromium.googlesource.com/chromiumos/third_party/kernel/+/1057eb620ccd3da4632c14df269d545cb9a1ccb2 Keiichi Watanabe (1): drivers: media: virtio: Support virtio objects in virtio-video driver drivers/media/virtio/virtio_video.h | 26 +++- drivers/media/virtio/virtio_video_dec.c | 1 + drivers/media/virtio/virtio_video_device.c | 131 ++++++++++++++++++++- drivers/media/virtio/virtio_video_driver.c | 25 +++- drivers/media/virtio/virtio_video_vq.c | 81 ++++++++++--- include/uapi/linux/virtio_video.h | 15 ++- 6 files changed, 243 insertions(+), 36 deletions(-) --- 2.25.1.696.g5e7596f4ac-goog