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Tsirkin" , Jason Wang , Sumit Semwal , Dmitry Sepp , Kiran Pawar , Samiullah Khawaja , Keiichi Watanabe , Nikolay Martyanov , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, acourbot@chromium.org, alexlau@chromium.org, egranata@google.com, hverkuil@xs4all.nl, kraxel@redhat.com, posciak@chromium.org, stevensd@chromium.org, tfiga@chromium.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 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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