From: David Stevens <stevensd@chromium.org>
To: Gerd Hoffmann <kraxel@redhat.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Michael S . Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Stevens <stevensd@chromium.org>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org,
virtio-dev@lists.oasis-open.org
Subject: [PATCH v4 0/3] Support virtio cross-device resources
Date: Tue, 26 May 2020 19:58:08 +0900 [thread overview]
Message-ID: <20200526105811.30784-1-stevensd@chromium.org> (raw)
This patchset implements the current proposal for virtio cross-device
resource sharing [1]. It will be used to import virtio resources into
the virtio-video driver currently under discussion [2]. The patch
under consideration to add support in the virtio-video driver is [3].
It uses the APIs from v3 of this series, but the changes to update it
are relatively minor.
This patchset adds a new flavor of dma-bufs that supports querying the
underlying virtio object UUID, as well as adding support for exporting
resources from virtgpu.
[1] https://markmail.org/thread/2ypjt5cfeu3m6lxu
[2] https://markmail.org/thread/p5d3k566srtdtute
[3] https://markmail.org/thread/j4xlqaaim266qpks
v3 -> v4 changes:
- Replace dma-buf hooks with virtio dma-buf from v1.
- Remove virtio_attach callback, as the work that had been done
in that callback is now done on dma-buf export. The documented
requirement that get_uuid only be called on attached virtio
dma-bufs is also removed.
- Rebase and add call to virtio_gpu_notify for ASSIGN_UUID.
David Stevens (3):
virtio: add dma-buf support for exported objects
virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature
drm/virtio: Support virtgpu exported resources
drivers/gpu/drm/virtio/virtgpu_drv.c | 3 +
drivers/gpu/drm/virtio/virtgpu_drv.h | 20 ++++++
drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++
drivers/gpu/drm/virtio/virtgpu_prime.c | 98 +++++++++++++++++++++++++-
drivers/gpu/drm/virtio/virtgpu_vq.c | 55 +++++++++++++++
drivers/virtio/Makefile | 2 +-
drivers/virtio/virtio.c | 6 ++
drivers/virtio/virtio_dma_buf.c | 91 ++++++++++++++++++++++++
include/linux/virtio.h | 1 +
include/linux/virtio_dma_buf.h | 58 +++++++++++++++
include/uapi/linux/virtio_gpu.h | 19 +++++
11 files changed, 353 insertions(+), 4 deletions(-)
create mode 100644 drivers/virtio/virtio_dma_buf.c
create mode 100644 include/linux/virtio_dma_buf.h
--
2.27.0.rc0.183.gde8f92d652-goog
next reply other threads:[~2020-05-26 10:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-26 10:58 David Stevens [this message]
2020-05-26 10:58 ` [PATCH v4 1/3] virtio: add dma-buf support for exported objects David Stevens
2020-06-04 19:05 ` Michael S. Tsirkin
2020-06-05 1:28 ` David Stevens
2020-06-06 20:04 ` Michael S. Tsirkin
2020-06-08 1:33 ` David Stevens
2020-06-08 6:00 ` Michael S. Tsirkin
2020-06-08 8:32 ` David Stevens
2020-06-08 9:05 ` Michael S. Tsirkin
2020-06-08 9:30 ` David Stevens
2020-06-18 12:28 ` Guennadi Liakhovetski
2020-06-19 1:57 ` David Stevens
2020-06-19 6:53 ` Guennadi Liakhovetski
2020-05-26 10:58 ` [PATCH v4 2/3] virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature David Stevens
2020-05-26 10:58 ` [PATCH v4 3/3] drm/virtio: Support virtgpu exported resources David Stevens
2020-05-28 8:31 ` [PATCH v4 0/3] Support virtio cross-device resources Gerd Hoffmann
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