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Message-Id: <20200302121524.7543-1-stevensd@chromium.org>
Date: Mon, 2 Mar 2020 21:15:20 +0900
From: David Stevens <stevensd@...omium.org>
To: Gerd Hoffmann <kraxel@...hat.com>, David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>,
"Michael S . Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Stevens <stevensd@...omium.org>,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
virtualization@...ts.linux-foundation.org,
linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
virtio-dev@...ts.oasis-open.org
Subject: [PATCH v2 0/4] Support virtio cross-device resources
This patchset implements the current proposal for virtio cross-device
resource sharing [1], with minor changes based on recent comments. It
is expected that this will be used to import virtio resources into the
virtio-video driver currently under discussion [2].
This patchset adds a new hook to dma-buf, for querying the dma-buf's
underlying virtio UUID. This hook is then plumbed through DRM PRIME
buffers, and finally implemented in virtgpu.
[1] https://markmail.org/thread/jsaoqy7phrqdcpqu
[2] https://markmail.org/thread/p5d3k566srtdtute
v1 -> v2 changes:
- Move get_uuid callback into main dma-buf ops (instead of placing it
in a new flavor of dma-buf).
- Rename new virtio commands and feature flag, and pull uapi changes
into their own patch.
David Stevens (4):
dma-buf: add support for virtio exported objects
drm/prime: add support for virtio exported objects
virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature
drm/virtio: Support virtgpu exported resources
drivers/dma-buf/dma-buf.c | 14 ++++++
drivers/gpu/drm/drm_prime.c | 27 +++++++++++
drivers/gpu/drm/virtio/virtgpu_drv.c | 3 ++
drivers/gpu/drm/virtio/virtgpu_drv.h | 19 ++++++++
drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++
drivers/gpu/drm/virtio/virtgpu_prime.c | 48 ++++++++++++++++++--
drivers/gpu/drm/virtio/virtgpu_vq.c | 62 ++++++++++++++++++++++++++
include/drm/drm_drv.h | 15 +++++++
include/linux/dma-buf.h | 22 +++++++++
include/uapi/linux/virtio_gpu.h | 19 ++++++++
10 files changed, 230 insertions(+), 3 deletions(-)
--
2.25.0.265.gbab2e86ba0-goog
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